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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms.TestUtilities;
using Moq;
namespace System.Windows.Forms.Tests;
public class TreeViewTests
{
[WinFormsFact]
public void TreeView_Ctor_Default()
{
using SubTreeView control = new();
Assert.Null(control.AccessibleDefaultActionDescription);
Assert.Null(control.AccessibleDescription);
Assert.Null(control.AccessibleName);
Assert.Equal(AccessibleRole.Default, control.AccessibleRole);
Assert.False(control.AllowDrop);
Assert.Equal(AnchorStyles.Top | AnchorStyles.Left, control.Anchor);
Assert.False(control.AutoSize);
Assert.Equal(SystemColors.Window, control.BackColor);
Assert.Null(control.BackgroundImage);
Assert.Equal(ImageLayout.Tile, control.BackgroundImageLayout);
Assert.Null(control.BindingContext);
Assert.Equal(BorderStyle.Fixed3D, control.BorderStyle);
Assert.Equal(97, control.Bottom);
Assert.Equal(new Rectangle(0, 0, 121, 97), control.Bounds);
Assert.True(control.CanEnableIme);
Assert.False(control.CanFocus);
Assert.True(control.CanRaiseEvents);
Assert.True(control.CanSelect);
Assert.False(control.Capture);
Assert.True(control.CausesValidation);
Assert.False(control.CheckBoxes);
Assert.Equal(117, control.ClientSize.Width);
Assert.Equal(93, control.ClientSize.Height);
Assert.Equal(new Rectangle(0, 0, 117, 93), control.ClientRectangle);
Assert.Null(control.Container);
Assert.False(control.ContainsFocus);
Assert.Null(control.ContextMenuStrip);
Assert.Empty(control.Controls);
Assert.Same(control.Controls, control.Controls);
Assert.False(control.Created);
Assert.Same(Cursors.Default, control.Cursor);
Assert.Same(Cursors.Default, control.DefaultCursor);
Assert.Equal(ImeMode.Inherit, control.DefaultImeMode);
Assert.Equal(new Padding(3), control.DefaultMargin);
Assert.Equal(Size.Empty, control.DefaultMaximumSize);
Assert.Equal(Size.Empty, control.DefaultMinimumSize);
Assert.Equal(Padding.Empty, control.DefaultPadding);
Assert.Equal(new Size(121, 97), control.DefaultSize);
Assert.False(control.DesignMode);
Assert.Equal(new Rectangle(0, 0, 117, 93), control.DisplayRectangle);
Assert.Equal(DockStyle.None, control.Dock);
Assert.False(control.DoubleBuffered);
Assert.Equal(TreeViewDrawMode.Normal, control.DrawMode);
Assert.True(control.Enabled);
Assert.NotNull(control.Events);
Assert.Same(control.Events, control.Events);
Assert.False(control.Focused);
Assert.Equal(Control.DefaultFont, control.Font);
Assert.Equal(control.Font.Height, control.FontHeight);
Assert.Equal(SystemColors.WindowText, control.ForeColor);
Assert.False(control.FullRowSelect);
Assert.False(control.HasChildren);
Assert.Equal(97, control.Height);
Assert.True(control.HideSelection);
Assert.False(control.HotTracking);
Assert.Equal(-1, control.ImageIndex);
Assert.Equal(string.Empty, control.ImageKey);
Assert.Null(control.ImageList);
Assert.Equal(ImeMode.NoControl, control.ImeMode);
Assert.Equal(ImeMode.NoControl, control.ImeModeBase);
Assert.Equal(19, control.Indent);
Assert.False(control.IsAccessible);
Assert.False(control.IsMirrored);
Assert.Equal(Control.DefaultFont.Height + 3, control.ItemHeight);
Assert.False(control.LabelEdit);
Assert.NotNull(control.LayoutEngine);
Assert.Same(control.LayoutEngine, control.LayoutEngine);
Assert.Equal(0, control.Left);
Assert.Equal(Color.Empty, control.LineColor);
Assert.Equal(Point.Empty, control.Location);
Assert.Equal(new Padding(3), control.Margin);
Assert.Equal(Size.Empty, control.MaximumSize);
Assert.Equal(Size.Empty, control.MinimumSize);
Assert.Same(control.Nodes, control.Nodes);
Assert.Empty(control.Nodes);
Assert.Equal(Padding.Empty, control.Padding);
Assert.Null(control.Parent);
Assert.Equal("\\", control.PathSeparator);
Assert.Equal("Microsoft\u00AE .NET", control.ProductName);
Assert.Equal(new Size(121, 97), control.PreferredSize);
Assert.False(control.RecreatingHandle);
Assert.Null(control.Region);
Assert.False(control.ResizeRedraw);
Assert.Equal(121, control.Right);
Assert.Equal(RightToLeft.No, control.RightToLeft);
Assert.False(control.RightToLeftLayout);
Assert.True(control.Scrollable);
Assert.Equal(-1, control.SelectedImageIndex);
Assert.Equal(string.Empty, control.SelectedImageKey);
Assert.Null(control.SelectedNode);
Assert.True(control.ShowFocusCues);
Assert.True(control.ShowLines);
Assert.True(control.ShowKeyboardCues);
Assert.False(control.ShowNodeToolTips);
Assert.True(control.ShowPlusMinus);
Assert.True(control.ShowRootLines);
Assert.Null(control.Site);
Assert.Equal(new Size(121, 97), control.Size);
Assert.False(control.Sorted);
Assert.Null(control.StateImageList);
Assert.Equal(0, control.TabIndex);
Assert.True(control.TabStop);
Assert.Empty(control.Text);
Assert.Equal(0, control.Top);
Assert.Null(control.TopLevelControl);
Assert.Null(control.TopNode);
Assert.Null(control.TreeViewNodeSorter);
Assert.False(control.UseWaitCursor);
Assert.True(control.Visible);
Assert.Equal(0, control.VisibleCount);
Assert.Equal(121, control.Width);
Assert.False(control.IsHandleCreated);
}
[WinFormsFact]
public void TreeView_CreateParams_GetDefault_ReturnsExpected()
{
using SubTreeView control = new();
CreateParams createParams = control.CreateParams;
Assert.Null(createParams.Caption);
Assert.Equal("SysTreeView32", createParams.ClassName);
Assert.Equal(0x8, createParams.ClassStyle);
Assert.Equal(0x200, createParams.ExStyle);
Assert.Equal(97, createParams.Height);
Assert.Equal(IntPtr.Zero, createParams.Parent);
Assert.Null(createParams.Param);
Assert.Equal(0x56010007, createParams.Style);
Assert.Equal(121, createParams.Width);
Assert.Equal(0, createParams.X);
Assert.Equal(0, createParams.Y);
Assert.Same(createParams, control.CreateParams);
Assert.False(control.IsHandleCreated);
}
[WinFormsFact]
public void TreeView_CreateParams_GetDefaultWithHandle_ReturnsExpected()
{
using SubTreeView control = new();
Assert.NotEqual(IntPtr.Zero, control.Handle);
int invalidatedCallCount = 0;
control.Invalidated += (sender, e) => invalidatedCallCount++;
int styleChangedCallCount = 0;
control.StyleChanged += (sender, e) => styleChangedCallCount++;
int createdCallCount = 0;
control.HandleCreated += (sender, e) => createdCallCount++;
CreateParams createParams = control.CreateParams;
Assert.Null(createParams.Caption);
Assert.Equal("SysTreeView32", createParams.ClassName);
Assert.Equal(0x8, createParams.ClassStyle);
Assert.Equal(0x200, createParams.ExStyle);
Assert.Equal(97, createParams.Height);
Assert.Equal(IntPtr.Zero, createParams.Parent);
Assert.Null(createParams.Param);
Assert.Equal(0x56010007, createParams.Style);
Assert.Equal(121, createParams.Width);
Assert.Equal(0, createParams.X);
Assert.Equal(0, createParams.Y);
Assert.Same(createParams, control.CreateParams);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
[WinFormsTheory]
[InlineData(BorderStyle.None, 0x56010007, 0)]
[InlineData(BorderStyle.Fixed3D, 0x56010007, 0x200)]
[InlineData(BorderStyle.FixedSingle, 0x56810007, 0)]
public void TreeView_CreateParams_GetBorder_ReturnsExpected(BorderStyle borderStyle, int expectedStyle, int expectedExStyle)
{
using SubTreeView control = new()
{
BorderStyle = borderStyle
};
CreateParams createParams = control.CreateParams;
Assert.Null(createParams.Caption);
Assert.Equal("SysTreeView32", createParams.ClassName);
Assert.Equal(0x8, createParams.ClassStyle);
Assert.Equal(expectedExStyle, createParams.ExStyle);
Assert.Equal(97, createParams.Height);
Assert.Equal(IntPtr.Zero, createParams.Parent);
Assert.Null(createParams.Param);
Assert.Equal(expectedStyle, createParams.Style);
Assert.Equal(121, createParams.Width);
Assert.Equal(0, createParams.X);
Assert.Equal(0, createParams.Y);
Assert.Same(createParams, control.CreateParams);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(true, 0x56010007)]
[InlineData(false, 0x56012007)]
public void TreeView_CreateParams_GetScrollable_ReturnsExpected(bool scrollable, int expectedStyle)
{
using SubTreeView control = new()
{
Scrollable = scrollable
};
CreateParams createParams = control.CreateParams;
Assert.Null(createParams.Caption);
Assert.Equal("SysTreeView32", createParams.ClassName);
Assert.Equal(0x8, createParams.ClassStyle);
Assert.Equal(0x200, createParams.ExStyle);
Assert.Equal(97, createParams.Height);
Assert.Equal(IntPtr.Zero, createParams.Parent);
Assert.Null(createParams.Param);
Assert.Equal(expectedStyle, createParams.Style);
Assert.Equal(121, createParams.Width);
Assert.Equal(0, createParams.X);
Assert.Equal(0, createParams.Y);
Assert.Same(createParams, control.CreateParams);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(true, 0x56010007)]
[InlineData(false, 0x56010027)]
public void TreeView_CreateParams_GetHideSelection_ReturnsExpected(bool hideSelection, int expectedStyle)
{
using SubTreeView control = new()
{
HideSelection = hideSelection
};
CreateParams createParams = control.CreateParams;
Assert.Null(createParams.Caption);
Assert.Equal("SysTreeView32", createParams.ClassName);
Assert.Equal(0x8, createParams.ClassStyle);
Assert.Equal(0x200, createParams.ExStyle);
Assert.Equal(97, createParams.Height);
Assert.Equal(IntPtr.Zero, createParams.Parent);
Assert.Null(createParams.Param);
Assert.Equal(expectedStyle, createParams.Style);
Assert.Equal(121, createParams.Width);
Assert.Equal(0, createParams.X);
Assert.Equal(0, createParams.Y);
Assert.Same(createParams, control.CreateParams);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(true, 0x5601000F)]
[InlineData(false, 0x56010007)]
public void TreeView_CreateParams_GetLabelEdit_ReturnsExpected(bool labelEdit, int expectedStyle)
{
using SubTreeView control = new()
{
LabelEdit = labelEdit
};
CreateParams createParams = control.CreateParams;
Assert.Null(createParams.Caption);
Assert.Equal("SysTreeView32", createParams.ClassName);
Assert.Equal(0x8, createParams.ClassStyle);
Assert.Equal(0x200, createParams.ExStyle);
Assert.Equal(97, createParams.Height);
Assert.Equal(IntPtr.Zero, createParams.Parent);
Assert.Null(createParams.Param);
Assert.Equal(expectedStyle, createParams.Style);
Assert.Equal(121, createParams.Width);
Assert.Equal(0, createParams.X);
Assert.Equal(0, createParams.Y);
Assert.Same(createParams, control.CreateParams);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(true, 0x56010007)]
[InlineData(false, 0x56010005)]
public void TreeView_CreateParams_GetShowLines_ReturnsExpected(bool showLines, int expectedStyle)
{
using SubTreeView control = new()
{
ShowLines = showLines
};
CreateParams createParams = control.CreateParams;
Assert.Null(createParams.Caption);
Assert.Equal("SysTreeView32", createParams.ClassName);
Assert.Equal(0x8, createParams.ClassStyle);
Assert.Equal(0x200, createParams.ExStyle);
Assert.Equal(97, createParams.Height);
Assert.Equal(IntPtr.Zero, createParams.Parent);
Assert.Null(createParams.Param);
Assert.Equal(expectedStyle, createParams.Style);
Assert.Equal(121, createParams.Width);
Assert.Equal(0, createParams.X);
Assert.Equal(0, createParams.Y);
Assert.Same(createParams, control.CreateParams);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(true, 0x56010007)]
[InlineData(false, 0x56010006)]
public void TreeView_CreateParams_GetShowPlusMinus_ReturnsExpected(bool showPlusMinus, int expectedStyle)
{
using SubTreeView control = new()
{
ShowPlusMinus = showPlusMinus
};
CreateParams createParams = control.CreateParams;
Assert.Null(createParams.Caption);
Assert.Equal("SysTreeView32", createParams.ClassName);
Assert.Equal(0x8, createParams.ClassStyle);
Assert.Equal(0x200, createParams.ExStyle);
Assert.Equal(97, createParams.Height);
Assert.Equal(IntPtr.Zero, createParams.Parent);
Assert.Null(createParams.Param);
Assert.Equal(expectedStyle, createParams.Style);
Assert.Equal(121, createParams.Width);
Assert.Equal(0, createParams.X);
Assert.Equal(0, createParams.Y);
Assert.Same(createParams, control.CreateParams);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(true, 0x56010007)]
[InlineData(false, 0x56010003)]
public void TreeView_CreateParams_GetShowRootLines_ReturnsExpected(bool showRootLines, int expectedStyle)
{
using SubTreeView control = new()
{
ShowRootLines = showRootLines
};
CreateParams createParams = control.CreateParams;
Assert.Null(createParams.Caption);
Assert.Equal("SysTreeView32", createParams.ClassName);
Assert.Equal(0x8, createParams.ClassStyle);
Assert.Equal(0x200, createParams.ExStyle);
Assert.Equal(97, createParams.Height);
Assert.Equal(IntPtr.Zero, createParams.Parent);
Assert.Null(createParams.Param);
Assert.Equal(expectedStyle, createParams.Style);
Assert.Equal(121, createParams.Width);
Assert.Equal(0, createParams.X);
Assert.Equal(0, createParams.Y);
Assert.Same(createParams, control.CreateParams);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(true, 0x56010207)]
[InlineData(false, 0x56010007)]
public void TreeView_CreateParams_GetHotTracking_ReturnsExpected(bool hotTracking, int expectedStyle)
{
using SubTreeView control = new()
{
HotTracking = hotTracking
};
CreateParams createParams = control.CreateParams;
Assert.Null(createParams.Caption);
Assert.Equal("SysTreeView32", createParams.ClassName);
Assert.Equal(0x8, createParams.ClassStyle);
Assert.Equal(0x200, createParams.ExStyle);
Assert.Equal(97, createParams.Height);
Assert.Equal(IntPtr.Zero, createParams.Parent);
Assert.Null(createParams.Param);
Assert.Equal(expectedStyle, createParams.Style);
Assert.Equal(121, createParams.Width);
Assert.Equal(0, createParams.X);
Assert.Equal(0, createParams.Y);
Assert.Same(createParams, control.CreateParams);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(true, 0x56011007)]
[InlineData(false, 0x56010007)]
public void TreeView_CreateParams_GetFullRowSelect_ReturnsExpected(bool fullRowSelect, int expectedStyle)
{
using SubTreeView control = new()
{
FullRowSelect = fullRowSelect
};
CreateParams createParams = control.CreateParams;
Assert.Null(createParams.Caption);
Assert.Equal("SysTreeView32", createParams.ClassName);
Assert.Equal(0x8, createParams.ClassStyle);
Assert.Equal(0x200, createParams.ExStyle);
Assert.Equal(97, createParams.Height);
Assert.Equal(IntPtr.Zero, createParams.Parent);
Assert.Null(createParams.Param);
Assert.Equal(expectedStyle, createParams.Style);
Assert.Equal(121, createParams.Width);
Assert.Equal(0, createParams.X);
Assert.Equal(0, createParams.Y);
Assert.Same(createParams, control.CreateParams);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(1)]
[InlineData(2)]
public void TreeView_CreateParams_GetItemHeight_ReturnsExpected(int value)
{
using SubTreeView control = new()
{
ItemHeight = value
};
CreateParams createParams = control.CreateParams;
Assert.Null(createParams.Caption);
Assert.Equal("SysTreeView32", createParams.ClassName);
Assert.Equal(0x8, createParams.ClassStyle);
Assert.Equal(0x200, createParams.ExStyle);
Assert.Equal(97, createParams.Height);
Assert.Equal(IntPtr.Zero, createParams.Parent);
Assert.Null(createParams.Param);
Assert.Equal(0x56010007, createParams.Style);
Assert.Equal(121, createParams.Width);
Assert.Equal(0, createParams.X);
Assert.Equal(0, createParams.Y);
Assert.Same(createParams, control.CreateParams);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(1)]
[InlineData(2)]
public void TreeView_CreateParams_GetItemHeightWithHandle_ReturnsExpected(int itemHeight)
{
using SubTreeView control = new()
{
ItemHeight = itemHeight
};
Assert.NotEqual(IntPtr.Zero, control.Handle);
int invalidatedCallCount = 0;
control.Invalidated += (sender, e) => invalidatedCallCount++;
int styleChangedCallCount = 0;
control.StyleChanged += (sender, e) => styleChangedCallCount++;
int createdCallCount = 0;
control.HandleCreated += (sender, e) => createdCallCount++;
CreateParams createParams = control.CreateParams;
Assert.Null(createParams.Caption);
Assert.Equal("SysTreeView32", createParams.ClassName);
Assert.Equal(0x8, createParams.ClassStyle);
Assert.Equal(0x200, createParams.ExStyle);
Assert.Equal(97, createParams.Height);
Assert.Equal(IntPtr.Zero, createParams.Parent);
Assert.Null(createParams.Param);
Assert.Equal(0x56010007, createParams.Style);
Assert.Equal(121, createParams.Width);
Assert.Equal(0, createParams.X);
Assert.Equal(0, createParams.Y);
Assert.Same(createParams, control.CreateParams);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
[WinFormsTheory]
[InlineData(11, 0x56014007, 1)]
[InlineData(12, 0x56010007, 0)]
public void TreeView_CreateParams_GetItemHeightInSetterWithHandle_ReturnsExpected(int itemHeight, int expectedStyle, int expectedCreatedCallCount)
{
using SubTreeView control = new();
Assert.NotEqual(IntPtr.Zero, control.Handle);
int invalidatedCallCount = 0;
control.Invalidated += (sender, e) => invalidatedCallCount++;
int styleChangedCallCount = 0;
control.StyleChanged += (sender, e) => styleChangedCallCount++;
int createdCallCount = 0;
control.HandleCreated += (sender, e) =>
{
CreateParams createParams = control.CreateParams;
Assert.Null(createParams.Caption);
Assert.Equal("SysTreeView32", createParams.ClassName);
Assert.Equal(0x8, createParams.ClassStyle);
Assert.Equal(0x200, createParams.ExStyle);
Assert.Equal(97, createParams.Height);
Assert.Equal(IntPtr.Zero, createParams.Parent);
Assert.Null(createParams.Param);
Assert.Equal(expectedStyle, createParams.Style);
Assert.Equal(121, createParams.Width);
Assert.Equal(0, createParams.X);
Assert.Equal(0, createParams.Y);
Assert.Same(createParams, control.CreateParams);
Assert.True(control.IsHandleCreated);
createdCallCount++;
};
control.ItemHeight = itemHeight;
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(expectedCreatedCallCount, createdCallCount);
}
[WinFormsTheory]
[InlineData(true, true)]
[InlineData(true, false)]
[InlineData(false, true)]
[InlineData(false, false)]
public void TreeView_CreateParams_GetShowNodeTooltips_ReturnsExpected(bool designMode, bool showNodeTooltips)
{
Mock<ISite> mockSite = new(MockBehavior.Strict);
mockSite
.Setup(s => s.GetService(typeof(AmbientProperties)))
.Returns(null);
mockSite
.Setup(s => s.Container)
.Returns((IContainer)null);
mockSite
.Setup(s => s.DesignMode)
.Returns(designMode);
using SubTreeView control = new()
{
Site = mockSite.Object,
ShowNodeToolTips = showNodeTooltips
};
CreateParams createParams = control.CreateParams;
Assert.Null(createParams.Caption);
Assert.Equal("SysTreeView32", createParams.ClassName);
Assert.Equal(0x8, createParams.ClassStyle);
Assert.Equal(0x200, createParams.ExStyle);
Assert.Equal(97, createParams.Height);
Assert.Equal(IntPtr.Zero, createParams.Parent);
Assert.Null(createParams.Param);
Assert.Equal(0x56010007, createParams.Style);
Assert.Equal(121, createParams.Width);
Assert.Equal(0, createParams.X);
Assert.Equal(0, createParams.Y);
Assert.Same(createParams, control.CreateParams);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(true, true, 0x56010007)]
[InlineData(true, false, 0x56010007)]
[InlineData(false, true, 0x56010807)]
[InlineData(false, false, 0x56010007)]
public void TreeView_CreateParams_GetShowNodeTooltipsWithHandle_ReturnsExpected(bool designMode, bool showNodeTooltips, int expectedStyle)
{
Mock<ISite> mockSite = new(MockBehavior.Strict);
mockSite
.Setup(s => s.GetService(typeof(AmbientProperties)))
.Returns(null);
mockSite
.Setup(s => s.Container)
.Returns((IContainer)null);
mockSite
.Setup(s => s.DesignMode)
.Returns(designMode);
using SubTreeView control = new()
{
Site = mockSite.Object,
ShowNodeToolTips = showNodeTooltips
};
Assert.NotEqual(IntPtr.Zero, control.Handle);
int invalidatedCallCount = 0;
control.Invalidated += (sender, e) => invalidatedCallCount++;
int styleChangedCallCount = 0;
control.StyleChanged += (sender, e) => styleChangedCallCount++;
int createdCallCount = 0;
control.HandleCreated += (sender, e) => createdCallCount++;
CreateParams createParams = control.CreateParams;
Assert.Null(createParams.Caption);
Assert.Equal("SysTreeView32", createParams.ClassName);
Assert.Equal(0x8, createParams.ClassStyle);
Assert.Equal(0x200, createParams.ExStyle);
Assert.Equal(97, createParams.Height);
Assert.Equal(IntPtr.Zero, createParams.Parent);
Assert.Null(createParams.Param);
Assert.Equal(expectedStyle, createParams.Style);
Assert.Equal(121, createParams.Width);
Assert.Equal(0, createParams.X);
Assert.Equal(0, createParams.Y);
Assert.Same(createParams, control.CreateParams);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
[WinFormsTheory]
[BoolData]
public void TreeView_CreateParams_GetCheckBoxes_ReturnsExpected(bool checkBoxes)
{
using SubTreeView control = new()
{
CheckBoxes = checkBoxes
};
CreateParams createParams = control.CreateParams;
Assert.Null(createParams.Caption);
Assert.Equal("SysTreeView32", createParams.ClassName);
Assert.Equal(0x8, createParams.ClassStyle);
Assert.Equal(0x200, createParams.ExStyle);
Assert.Equal(97, createParams.Height);
Assert.Equal(IntPtr.Zero, createParams.Parent);
Assert.Null(createParams.Param);
Assert.Equal(0x56010007, createParams.Style);
Assert.Equal(121, createParams.Width);
Assert.Equal(0, createParams.X);
Assert.Equal(0, createParams.Y);
Assert.Same(createParams, control.CreateParams);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(true, 0x56010107)]
[InlineData(false, 0x56010007)]
public void TreeView_CreateParams_GetCheckBoxesWithHandle_ReturnsExpected(bool checkBoxes, int expectedStyle)
{
using SubTreeView control = new()
{
CheckBoxes = checkBoxes
};
Assert.NotEqual(IntPtr.Zero, control.Handle);
int invalidatedCallCount = 0;
control.Invalidated += (sender, e) => invalidatedCallCount++;
int styleChangedCallCount = 0;
control.StyleChanged += (sender, e) => styleChangedCallCount++;
int createdCallCount = 0;
control.HandleCreated += (sender, e) => createdCallCount++;
CreateParams createParams = control.CreateParams;
Assert.Null(createParams.Caption);
Assert.Equal("SysTreeView32", createParams.ClassName);
Assert.Equal(0x8, createParams.ClassStyle);
Assert.Equal(0x200, createParams.ExStyle);
Assert.Equal(97, createParams.Height);
Assert.Equal(IntPtr.Zero, createParams.Parent);
Assert.Null(createParams.Param);
Assert.Equal(expectedStyle, createParams.Style);
Assert.Equal(121, createParams.Width);
Assert.Equal(0, createParams.X);
Assert.Equal(0, createParams.Y);
Assert.Same(createParams, control.CreateParams);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
[WinFormsTheory]
[InlineData(RightToLeft.Inherit, true, 0x56010007, 0x200)]
[InlineData(RightToLeft.No, true, 0x56010007, 0x200)]
[InlineData(RightToLeft.Yes, true, 0x56010007, 0x400200)]
[InlineData(RightToLeft.Inherit, false, 0x56010007, 0x200)]
[InlineData(RightToLeft.No, false, 0x56010007, 0x200)]
[InlineData(RightToLeft.Yes, false, 0x56010047, 0x7200)]
public void TreeView_CreateParams_GetRightToLeft_ReturnsExpected(RightToLeft rightToLeft, bool rightToLeftLayout, int expectedStyle, int expectedExStyle)
{
using SubTreeView control = new()
{
RightToLeft = rightToLeft,
RightToLeftLayout = rightToLeftLayout
};
CreateParams createParams = control.CreateParams;
Assert.Null(createParams.Caption);
Assert.Equal("SysTreeView32", createParams.ClassName);
Assert.Equal(0x8, createParams.ClassStyle);
Assert.Equal(expectedExStyle, createParams.ExStyle);
Assert.Equal(97, createParams.Height);
Assert.Equal(IntPtr.Zero, createParams.Parent);
Assert.Null(createParams.Param);
Assert.Equal(expectedStyle, createParams.Style);
Assert.Equal(121, createParams.Width);
Assert.Equal(0, createParams.X);
Assert.Equal(0, createParams.Y);
Assert.Same(createParams, control.CreateParams);
}
public static IEnumerable<object[]> BackColor_Set_TestData()
{
yield return new object[] { Color.Empty, SystemColors.Window };
yield return new object[] { Color.Red, Color.Red };
}
[WinFormsTheory]
[MemberData(nameof(BackColor_Set_TestData))]
public void TreeView_BackColor_Set_GetReturnsExpected(Color value, Color expected)
{
using TreeView control = new()
{
BackColor = value
};
Assert.Equal(expected, control.BackColor);
Assert.False(control.IsHandleCreated);
// Set same.
control.BackColor = value;
Assert.Equal(expected, control.BackColor);
Assert.False(control.IsHandleCreated);
}
public static IEnumerable<object[]> BackColor_SetWithHandle_TestData()
{
yield return new object[] { Color.Empty, SystemColors.Window, 0 };
yield return new object[] { Color.Red, Color.Red, 1 };
}
[WinFormsTheory]
[MemberData(nameof(BackColor_SetWithHandle_TestData))]
public void TreeView_BackColor_SetWithHandle_GetReturnsExpected(Color value, Color expected, int expectedInvalidatedCallCount)
{
using TreeView control = new();
Assert.NotEqual(IntPtr.Zero, control.Handle);
int invalidatedCallCount = 0;
control.Invalidated += (sender, e) => invalidatedCallCount++;
int styleChangedCallCount = 0;
control.StyleChanged += (sender, e) => styleChangedCallCount++;
int createdCallCount = 0;
control.HandleCreated += (sender, e) => createdCallCount++;
control.BackColor = value;
Assert.Equal(expected, control.BackColor);
Assert.True(control.IsHandleCreated);
Assert.Equal(expectedInvalidatedCallCount, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
// Set same.
control.BackColor = value;
Assert.Equal(expected, control.BackColor);
Assert.True(control.IsHandleCreated);
Assert.Equal(expectedInvalidatedCallCount, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
[WinFormsFact]
public void BackColor_SetWithHandler_CallsBackColorChanged()
{
using TreeView control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(EventArgs.Empty, e);
callCount++;
};
control.BackColorChanged += handler;
// Set different.
control.BackColor = Color.Red;
Assert.Equal(Color.Red, control.BackColor);
Assert.Equal(1, callCount);
// Set same.
control.BackColor = Color.Red;
Assert.Equal(Color.Red, control.BackColor);
Assert.Equal(1, callCount);
// Set different.
control.BackColor = Color.Empty;
Assert.Equal(SystemColors.Window, control.BackColor);
Assert.Equal(2, callCount);
// Remove handler.
control.BackColorChanged -= handler;
control.BackColor = Color.Red;
Assert.Equal(Color.Red, control.BackColor);
Assert.Equal(2, callCount);
}
[WinFormsTheory]
[CommonMemberData(typeof(CommonTestHelperEx), nameof(CommonTestHelperEx.GetImageTheoryData))]
public void TreeView_BackgroundImage_Set_GetReturnsExpected(Image value)
{
using TreeView control = new()
{
BackgroundImage = value
};
Assert.Same(value, control.BackgroundImage);
Assert.False(control.IsHandleCreated);
// Set same.
control.BackgroundImage = value;
Assert.Same(value, control.BackgroundImage);
Assert.False(control.IsHandleCreated);
}
[WinFormsFact]
public void TreeView_BackgroundImage_SetWithHandler_CallsBackgroundImageChanged()
{
using TreeView control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(EventArgs.Empty, e);
callCount++;
};
control.BackgroundImageChanged += handler;
// Set different.
using Bitmap image1 = new(10, 10);
control.BackgroundImage = image1;
Assert.Same(image1, control.BackgroundImage);
Assert.Equal(1, callCount);
// Set same.
control.BackgroundImage = image1;
Assert.Same(image1, control.BackgroundImage);
Assert.Equal(1, callCount);
// Set different.
using Bitmap image2 = new(10, 10);
control.BackgroundImage = image2;
Assert.Same(image2, control.BackgroundImage);
Assert.Equal(2, callCount);
// Set null.
control.BackgroundImage = null;
Assert.Null(control.BackgroundImage);
Assert.Equal(3, callCount);
// Remove handler.
control.BackgroundImageChanged -= handler;
control.BackgroundImage = image1;
Assert.Same(image1, control.BackgroundImage);
Assert.Equal(3, callCount);
}
[WinFormsTheory]
[EnumData<ImageLayout>]
public void TreeView_BackgroundImageLayout_Set_GetReturnsExpected(ImageLayout value)
{
using TreeView control = new()
{
BackgroundImageLayout = value
};
Assert.Equal(value, control.BackgroundImageLayout);
Assert.False(control.IsHandleCreated);
// Set same.
control.BackgroundImageLayout = value;
Assert.Equal(value, control.BackgroundImageLayout);
Assert.False(control.IsHandleCreated);
}
[WinFormsFact]
public void TreeView_BackgroundImageLayout_SetWithHandler_CallsBackgroundImageLayoutChanged()
{
using TreeView control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(EventArgs.Empty, e);
callCount++;
};
control.BackgroundImageLayoutChanged += handler;
// Set different.
control.BackgroundImageLayout = ImageLayout.Center;
Assert.Equal(ImageLayout.Center, control.BackgroundImageLayout);
Assert.Equal(1, callCount);
// Set same.
control.BackgroundImageLayout = ImageLayout.Center;
Assert.Equal(ImageLayout.Center, control.BackgroundImageLayout);
Assert.Equal(1, callCount);
// Set different.
control.BackgroundImageLayout = ImageLayout.Stretch;
Assert.Equal(ImageLayout.Stretch, control.BackgroundImageLayout);
Assert.Equal(2, callCount);
// Remove handler.
control.BackgroundImageLayoutChanged -= handler;
control.BackgroundImageLayout = ImageLayout.Center;
Assert.Equal(ImageLayout.Center, control.BackgroundImageLayout);
Assert.Equal(2, callCount);
}
[WinFormsTheory]
[InvalidEnumData<ImageLayout>]
public void BackgroundImageLayout_SetInvalid_ThrowsInvalidEnumArgumentException(ImageLayout value)
{
using TreeView control = new();
Assert.Throws<InvalidEnumArgumentException>("value", () => control.BackgroundImageLayout = value);
}
[WinFormsTheory]
[EnumData<BorderStyle>]
public void BorderStyle_Set_GetReturnsExpected(BorderStyle value)
{
using TreeView treeView = new()
{
BorderStyle = value
};
Assert.Equal(value, treeView.BorderStyle);
// Set same.
treeView.BorderStyle = value;
Assert.Equal(value, treeView.BorderStyle);
}
[WinFormsFact]
public void BorderStyle_SetWithUpdateStylesHandler_CallsStyleChangedDoesNotCallInvalidated()
{
using TreeView treeView = new()
{
BorderStyle = BorderStyle.Fixed3D
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
// Set different.
treeView.BorderStyle = BorderStyle.None;
Assert.Equal(BorderStyle.None, treeView.BorderStyle);
Assert.Equal(1, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set same.
treeView.BorderStyle = BorderStyle.None;
Assert.Equal(BorderStyle.None, treeView.BorderStyle);
Assert.Equal(1, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set different.
treeView.BorderStyle = BorderStyle.FixedSingle;
Assert.Equal(BorderStyle.FixedSingle, treeView.BorderStyle);
Assert.Equal(2, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.BorderStyle = BorderStyle.Fixed3D;
Assert.Equal(BorderStyle.Fixed3D, treeView.BorderStyle);
Assert.Equal(2, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
}
[WinFormsFact]
public void BorderStyle_SetWithInvalidatedWithHandle_CallsStyleChangedCallsInvalidated()
{
using TreeView treeView = new()
{
BorderStyle = BorderStyle.Fixed3D
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
// Set different.
treeView.BorderStyle = BorderStyle.None;
Assert.Equal(BorderStyle.None, treeView.BorderStyle);
Assert.Equal(1, styleChangedCallCount);
Assert.Equal(1, invalidatedCallCount);
// Set same.
treeView.BorderStyle = BorderStyle.None;
Assert.Equal(BorderStyle.None, treeView.BorderStyle);
Assert.Equal(1, styleChangedCallCount);
Assert.Equal(1, invalidatedCallCount);
// Set different.
treeView.BorderStyle = BorderStyle.FixedSingle;
Assert.Equal(BorderStyle.FixedSingle, treeView.BorderStyle);
Assert.Equal(2, styleChangedCallCount);
Assert.Equal(2, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.BorderStyle = BorderStyle.Fixed3D;
Assert.Equal(BorderStyle.Fixed3D, treeView.BorderStyle);
Assert.Equal(2, styleChangedCallCount);
Assert.Equal(2, invalidatedCallCount);
}
[WinFormsTheory]
[InvalidEnumData<BorderStyle>]
public void BorderStyle_SetInvalid_ThrowsInvalidEnumArgumentException(BorderStyle value)
{
using TreeView treeView = new();
Assert.Throws<InvalidEnumArgumentException>("value", () => treeView.BorderStyle = value);
}
[WinFormsTheory]
[BoolData]
public void CheckBoxes_Set_GetReturnsExpected(bool value)
{
using TreeView treeView = new()
{
CheckBoxes = value
};
Assert.Equal(value, treeView.CheckBoxes);
// Set same.
treeView.CheckBoxes = value;
Assert.Equal(value, treeView.CheckBoxes);
// Set different.
treeView.CheckBoxes = !value;
Assert.Equal(!value, treeView.CheckBoxes);
}
[WinFormsTheory]
[BoolData]
public void CheckBoxes_SetWithHandle_GetReturnsExpected(bool value)
{
using TreeView treeView = new();
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.CheckBoxes = value;
Assert.Equal(value, treeView.CheckBoxes);
// Set same.
treeView.CheckBoxes = value;
Assert.Equal(value, treeView.CheckBoxes);
// Set different.
treeView.CheckBoxes = !value;
Assert.Equal(!value, treeView.CheckBoxes);
}
[WinFormsFact]
public void CheckBoxes_SetWithUpdateStylesHandler_DoesNotCallStyleChangedDoesNotCallInvalidated()
{
using TreeView treeView = new()
{
CheckBoxes = false
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
// Set different.
treeView.CheckBoxes = true;
Assert.True(treeView.CheckBoxes);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set same.
treeView.CheckBoxes = true;
Assert.True(treeView.CheckBoxes);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set different.
treeView.CheckBoxes = false;
Assert.False(treeView.CheckBoxes);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.CheckBoxes = true;
Assert.True(treeView.CheckBoxes);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
}
[WinFormsFact]
public void CheckBoxes_SetWithUpdateStylesHandlerWithHandle_CallsStyleChangedCallsInvalidated()
{
using TreeView treeView = new()
{
CheckBoxes = false
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
// Set different.
treeView.CheckBoxes = true;
Assert.True(treeView.CheckBoxes);
Assert.Equal(1, styleChangedCallCount);
Assert.Equal(1, invalidatedCallCount);
// Set same.
treeView.CheckBoxes = true;
Assert.True(treeView.CheckBoxes);
Assert.Equal(1, styleChangedCallCount);
Assert.Equal(1, invalidatedCallCount);
// Set different.
treeView.CheckBoxes = false;
Assert.False(treeView.CheckBoxes);
Assert.Equal(1, styleChangedCallCount);
Assert.Equal(1, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.CheckBoxes = true;
Assert.True(treeView.CheckBoxes);
Assert.Equal(1, styleChangedCallCount);
Assert.Equal(1, invalidatedCallCount);
}
[WinFormsTheory]
[BoolData]
public void DoubleBuffered_Set_GetReturnsExpected(bool value)
{
using SubTreeView treeView = new()
{
DoubleBuffered = value
};
Assert.Equal(value, treeView.DoubleBuffered);
// Set same.
treeView.DoubleBuffered = value;
Assert.Equal(value, treeView.DoubleBuffered);
// Set different.
treeView.DoubleBuffered = !value;
Assert.Equal(!value, treeView.DoubleBuffered);
}
[WinFormsTheory]
[BoolData]
public void DoubleBuffered_SetWithHandle_GetReturnsExpected(bool value)
{
using SubTreeView treeView = new();
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.DoubleBuffered = value;
Assert.Equal(value, treeView.DoubleBuffered);
// Set same.
treeView.DoubleBuffered = value;
Assert.Equal(value, treeView.DoubleBuffered);
// Set different.
treeView.DoubleBuffered = !value;
Assert.Equal(!value, treeView.DoubleBuffered);
}
[WinFormsFact]
public void DoubleBuffered_SetWithUpdateStylesHandler_DoesNotCallStyleChangedDoesNotCallInvalidated()
{
using SubTreeView treeView = new()
{
DoubleBuffered = false
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
// Set different.
treeView.DoubleBuffered = true;
Assert.True(treeView.DoubleBuffered);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set same.
treeView.DoubleBuffered = true;
Assert.True(treeView.DoubleBuffered);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set different.
treeView.DoubleBuffered = false;
Assert.False(treeView.DoubleBuffered);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.DoubleBuffered = true;
Assert.True(treeView.DoubleBuffered);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
}
[WinFormsFact]
public void DoubleBuffered_SetWithUpdateStylesHandlerWithHandle_DoesNotCallStyleChangedDoesNotCallInvalidated()
{
using SubTreeView treeView = new()
{
DoubleBuffered = false
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
// Set different.
treeView.DoubleBuffered = true;
Assert.True(treeView.DoubleBuffered);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set same.
treeView.DoubleBuffered = true;
Assert.True(treeView.DoubleBuffered);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set different.
treeView.DoubleBuffered = false;
Assert.False(treeView.DoubleBuffered);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.DoubleBuffered = true;
Assert.True(treeView.DoubleBuffered);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
}
[WinFormsTheory]
[EnumData<TreeViewDrawMode>]
public void DrawMode_Set_GetReturnsExpected(TreeViewDrawMode value)
{
using TreeView control = new()
{
DrawMode = value
};
Assert.Equal(value, control.DrawMode);
// Set same.
control.DrawMode = value;
Assert.Equal(value, control.DrawMode);
}
[WinFormsTheory]
[EnumData<TreeViewDrawMode>]
public void DrawMode_SetWithHandle_GetReturnsExpected(TreeViewDrawMode value)
{
using TreeView treeView = new();
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.DrawMode = value;
Assert.Equal(value, treeView.DrawMode);
// Set same.
treeView.DrawMode = value;
Assert.Equal(value, treeView.DrawMode);
}
[WinFormsFact]
public void DrawMode_SetWithUpdateStylesHandler_DoesNotCallStyleChangedDoesNotCallInvalidated()
{
using SubTreeView treeView = new()
{
DrawMode = TreeViewDrawMode.Normal
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
// Set different.
treeView.DrawMode = TreeViewDrawMode.OwnerDrawText;
Assert.Equal(TreeViewDrawMode.OwnerDrawText, treeView.DrawMode);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set same.
treeView.DrawMode = TreeViewDrawMode.OwnerDrawText;
Assert.Equal(TreeViewDrawMode.OwnerDrawText, treeView.DrawMode);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set different.
treeView.DrawMode = TreeViewDrawMode.OwnerDrawAll;
Assert.Equal(TreeViewDrawMode.OwnerDrawAll, treeView.DrawMode);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.DrawMode = TreeViewDrawMode.Normal;
Assert.Equal(TreeViewDrawMode.Normal, treeView.DrawMode);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
}
[WinFormsFact]
public void DrawMode_SetWithUpdateStylesHandlerWithHandle_DoesNotCallStyleChangedCallsInvalidated()
{
using SubTreeView treeView = new()
{
DrawMode = TreeViewDrawMode.Normal
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
// Set different.
treeView.DrawMode = TreeViewDrawMode.OwnerDrawText;
Assert.Equal(TreeViewDrawMode.OwnerDrawText, treeView.DrawMode);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(1, invalidatedCallCount);
// Set same.
treeView.DrawMode = TreeViewDrawMode.OwnerDrawText;
Assert.Equal(TreeViewDrawMode.OwnerDrawText, treeView.DrawMode);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(1, invalidatedCallCount);
// Set different.
treeView.DrawMode = TreeViewDrawMode.OwnerDrawAll;
Assert.Equal(TreeViewDrawMode.OwnerDrawAll, treeView.DrawMode);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(2, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.DrawMode = TreeViewDrawMode.Normal;
Assert.Equal(TreeViewDrawMode.Normal, treeView.DrawMode);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(2, invalidatedCallCount);
}
[WinFormsTheory]
[InvalidEnumData<TreeViewDrawMode>]
public void DrawMode_SetInvalid_ThrowsInvalidEnumArgumentException(TreeViewDrawMode value)
{
using TreeView treeView = new();
Assert.Throws<InvalidEnumArgumentException>("value", () => treeView.DrawMode = value);
}
public static IEnumerable<object[]> ForeColor_Set_TestData()
{
yield return new object[] { Color.Empty, SystemColors.WindowText };
yield return new object[] { Color.FromArgb(254, 1, 2, 3), Color.FromArgb(254, 1, 2, 3) };
yield return new object[] { Color.White, Color.White };
yield return new object[] { Color.Black, Color.Black };
yield return new object[] { Color.Red, Color.Red };
}
[WinFormsTheory]
[MemberData(nameof(ForeColor_Set_TestData))]
public void ForeColor_Set_GetReturnsExpected(Color value, Color expected)
{
using TreeView control = new()
{
ForeColor = value
};
Assert.Equal(expected, control.ForeColor);
// Set same.
control.ForeColor = value;
Assert.Equal(expected, control.ForeColor);
}
[WinFormsTheory]
[MemberData(nameof(ForeColor_Set_TestData))]
public void ForeColor_SetWithHandle_GetReturnsExpected(Color value, Color expected)
{
using TreeView control = new();
Assert.NotEqual(IntPtr.Zero, control.Handle);
control.ForeColor = value;
Assert.Equal(expected, control.ForeColor);
// Set same.
control.ForeColor = value;
Assert.Equal(expected, control.ForeColor);
}
[WinFormsFact]
public void ForeColor_SetWithHandler_CallsForeColorChanged()
{
using TreeView control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(EventArgs.Empty, e);
callCount++;
};
control.ForeColorChanged += handler;
// Set different.
control.ForeColor = Color.Red;
Assert.Equal(Color.Red, control.ForeColor);
Assert.Equal(1, callCount);
// Set same.
control.ForeColor = Color.Red;
Assert.Equal(Color.Red, control.ForeColor);
Assert.Equal(1, callCount);
// Set different.
control.ForeColor = Color.Empty;
Assert.Equal(SystemColors.WindowText, control.ForeColor);
Assert.Equal(2, callCount);
// Remove handler.
control.ForeColorChanged -= handler;
control.ForeColor = Color.Red;
Assert.Equal(Color.Red, control.ForeColor);
Assert.Equal(2, callCount);
}
[WinFormsTheory]
[BoolData]
public void FullRowSelect_Set_GetReturnsExpected(bool value)
{
using TreeView treeView = new()
{
FullRowSelect = value
};
Assert.Equal(value, treeView.FullRowSelect);
// Set same.
treeView.FullRowSelect = value;
Assert.Equal(value, treeView.FullRowSelect);
// Set different.
treeView.FullRowSelect = !value;
Assert.Equal(!value, treeView.FullRowSelect);
}
[WinFormsTheory]
[BoolData]
public void FullRowSelect_SetWithHandle_GetReturnsExpected(bool value)
{
using TreeView treeView = new();
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.FullRowSelect = value;
Assert.Equal(value, treeView.FullRowSelect);
// Set same.
treeView.FullRowSelect = value;
Assert.Equal(value, treeView.FullRowSelect);
// Set different.
treeView.FullRowSelect = !value;
Assert.Equal(!value, treeView.FullRowSelect);
}
[WinFormsFact]
public void FullRowSelect_SetWithUpdateStylesHandler_DoesNotCallStyleChangedDoesNotCallInvalidated()
{
using TreeView treeView = new()
{
FullRowSelect = false
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
// Set different.
treeView.FullRowSelect = true;
Assert.True(treeView.FullRowSelect);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set same.
treeView.FullRowSelect = true;
Assert.True(treeView.FullRowSelect);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set different.
treeView.FullRowSelect = false;
Assert.False(treeView.FullRowSelect);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.FullRowSelect = true;
Assert.True(treeView.FullRowSelect);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
}
[WinFormsFact]
public void FullRowSelect_SetWithUpdateStylesHandlerWithHandle_CallsStyleChangedCallsInvalidated()
{
using TreeView treeView = new()
{
FullRowSelect = false
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
// Set different.
treeView.FullRowSelect = true;
Assert.True(treeView.FullRowSelect);
Assert.Equal(1, styleChangedCallCount);
Assert.Equal(1, invalidatedCallCount);
// Set same.
treeView.FullRowSelect = true;
Assert.True(treeView.FullRowSelect);
Assert.Equal(1, styleChangedCallCount);
Assert.Equal(1, invalidatedCallCount);
// Set different.
treeView.FullRowSelect = false;
Assert.False(treeView.FullRowSelect);
Assert.Equal(2, styleChangedCallCount);
Assert.Equal(2, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.FullRowSelect = true;
Assert.True(treeView.FullRowSelect);
Assert.Equal(2, styleChangedCallCount);
Assert.Equal(2, invalidatedCallCount);
}
[WinFormsFact]
public void TreeView_Handle_GetVersion_ReturnsExpected()
{
using TreeView control = new();
Assert.NotEqual(IntPtr.Zero, control.Handle);
int version = Application.UseVisualStyles ? 6 : 5;
Assert.Equal(version, (int)PInvoke.SendMessage(control, PInvoke.CCM_GETVERSION));
}
public static IEnumerable<object[]> Handle_CustomGetVersion_TestData()
{
yield return new object[] { IntPtr.Zero, 1 };
yield return new object[] { (IntPtr)4, 1 };
yield return new object[] { (IntPtr)5, 0 };
yield return new object[] { (IntPtr)6, 0 };
}
[WinFormsTheory]
[MemberData(nameof(Handle_CustomGetVersion_TestData))]
public void TreeView_Handle_CustomGetVersion_Success(IntPtr getVersionResult, int expectedSetVersionCallCount)
{
using CustomGetVersionTreeView control = new()
{
GetVersionResult = getVersionResult
};
Assert.NotEqual(IntPtr.Zero, control.Handle);
Assert.Equal(expectedSetVersionCallCount, control.SetVersionCallCount);
}
private class CustomGetVersionTreeView : TreeView
{
public IntPtr GetVersionResult { get; set; }
public int SetVersionCallCount { get; set; }
protected override void WndProc(ref Message m)
{
if (m.Msg == (int)PInvoke.CCM_GETVERSION)
{
Assert.Equal(IntPtr.Zero, m.WParam);
Assert.Equal(IntPtr.Zero, m.LParam);
m.Result = GetVersionResult;
return;
}
else if (m.Msg == (int)PInvoke.CCM_SETVERSION)
{
Assert.Equal(5, m.WParam);
Assert.Equal(IntPtr.Zero, m.LParam);
SetVersionCallCount++;
return;
}
base.WndProc(ref m);
}
}
[WinFormsTheory]
[BoolData]
public void HideSelection_Set_GetReturnsExpected(bool value)
{
using TreeView treeView = new()
{
HideSelection = value
};
Assert.Equal(value, treeView.HideSelection);
// Set same.
treeView.HideSelection = value;
Assert.Equal(value, treeView.HideSelection);
// Set different.
treeView.HideSelection = !value;
Assert.Equal(!value, treeView.HideSelection);
}
[WinFormsTheory]
[BoolData]
public void HideSelection_SetWithHandle_GetReturnsExpected(bool value)
{
using TreeView treeView = new();
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.HideSelection = value;
Assert.Equal(value, treeView.HideSelection);
// Set same.
treeView.HideSelection = value;
Assert.Equal(value, treeView.HideSelection);
// Set different.
treeView.HideSelection = !value;
Assert.Equal(!value, treeView.HideSelection);
}
[WinFormsFact]
public void HideSelection_SetWithUpdateStylesHandler_DoesNotCallStyleChangedDoesNotCallInvalidated()
{
using TreeView treeView = new()
{
HideSelection = true
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
// Set different.
treeView.HideSelection = false;
Assert.False(treeView.HideSelection);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set same.
treeView.HideSelection = false;
Assert.False(treeView.HideSelection);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set different.
treeView.HideSelection = true;
Assert.True(treeView.HideSelection);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.HideSelection = false;
Assert.False(treeView.HideSelection);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
}
[WinFormsFact]
public void HideSelection_SetWithUpdateStylesHandlerWithHandle_CallsStyleChangedCallsInvalidated()
{
using TreeView treeView = new()
{
HideSelection = true
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
// Set different.
treeView.HideSelection = false;
Assert.False(treeView.HideSelection);
Assert.Equal(1, styleChangedCallCount);
Assert.Equal(1, invalidatedCallCount);
// Set same.
treeView.HideSelection = false;
Assert.False(treeView.HideSelection);
Assert.Equal(1, styleChangedCallCount);
Assert.Equal(1, invalidatedCallCount);
// Set different.
treeView.HideSelection = true;
Assert.True(treeView.HideSelection);
Assert.Equal(2, styleChangedCallCount);
Assert.Equal(2, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.HideSelection = false;
Assert.False(treeView.HideSelection);
Assert.Equal(2, styleChangedCallCount);
Assert.Equal(2, invalidatedCallCount);
}
[WinFormsTheory]
[BoolData]
public void HotTracking_Set_GetReturnsExpected(bool value)
{
using TreeView treeView = new()
{
HotTracking = value
};
Assert.Equal(value, treeView.HotTracking);
// Set same.
treeView.HotTracking = value;
Assert.Equal(value, treeView.HotTracking);
// Set different.
treeView.HotTracking = !value;
Assert.Equal(!value, treeView.HotTracking);
}
[WinFormsTheory]
[BoolData]
public void HotTracking_SetWithHandle_GetReturnsExpected(bool value)
{
using TreeView treeView = new();
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.HotTracking = value;
Assert.Equal(value, treeView.HotTracking);
// Set same.
treeView.HotTracking = value;
Assert.Equal(value, treeView.HotTracking);
// Set different.
treeView.HotTracking = !value;
Assert.Equal(!value, treeView.HotTracking);
}
[WinFormsFact]
public void HotTracking_SetWithUpdateStylesHandler_DoesNotCallStyleChangedDoesNotCallInvalidated()
{
using TreeView treeView = new()
{
HotTracking = false
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
// Set different.
treeView.HotTracking = true;
Assert.True(treeView.HotTracking);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set same.
treeView.HotTracking = true;
Assert.True(treeView.HotTracking);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set different.
treeView.HotTracking = false;
Assert.False(treeView.HotTracking);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.HotTracking = true;
Assert.True(treeView.HotTracking);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
}
[WinFormsFact]
public void HotTracking_SetWithUpdateStylesHandlerWithHandle_CallsStyleChangedCallsInvalidated()
{
using TreeView treeView = new()
{
HotTracking = false
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
// Set different.
treeView.HotTracking = true;
Assert.True(treeView.HotTracking);
Assert.Equal(1, styleChangedCallCount);
Assert.Equal(1, invalidatedCallCount);
// Set same.
treeView.HotTracking = true;
Assert.True(treeView.HotTracking);
Assert.Equal(1, styleChangedCallCount);
Assert.Equal(1, invalidatedCallCount);
// Set different.
treeView.HotTracking = false;
Assert.False(treeView.HotTracking);
Assert.Equal(2, styleChangedCallCount);
Assert.Equal(2, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.HotTracking = true;
Assert.True(treeView.HotTracking);
Assert.Equal(2, styleChangedCallCount);
Assert.Equal(2, invalidatedCallCount);
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(0)]
[InlineData(1)]
public void ImageIndex_SetWithoutImageList_GetReturnsExpected(int value)
{
using TreeView treeView = new()
{
ImageIndex = value
};
Assert.Equal(-1, treeView.ImageIndex);
Assert.Empty(treeView.ImageKey);
// Set same.
treeView.ImageIndex = value;
Assert.Equal(-1, treeView.ImageIndex);
Assert.Empty(treeView.ImageKey);
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(0)]
[InlineData(1)]
public void ImageIndex_SetWithoutImageListWithImageKey_GetReturnsExpected(int value)
{
using TreeView treeView = new()
{
ImageKey = "imageKey",
ImageIndex = value
};
Assert.Equal(-1, treeView.ImageIndex);
Assert.Empty(treeView.ImageKey);
// Set same.
treeView.ImageIndex = value;
Assert.Equal(-1, treeView.ImageIndex);
Assert.Empty(treeView.ImageKey);
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(0)]
[InlineData(1)]
[InlineData(2)]
public void ImageIndex_SetWithEmptyImageList_GetReturnsExpected(int value)
{
using ImageList imageList = new();
using TreeView treeView = new()
{
ImageList = imageList,
ImageIndex = value
};
Assert.Equal(0, treeView.ImageIndex);
Assert.Empty(treeView.ImageKey);
// Set same.
treeView.ImageIndex = value;
Assert.Equal(0, treeView.ImageIndex);
Assert.Empty(treeView.ImageKey);
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(0)]
[InlineData(1)]
[InlineData(2)]
public void ImageIndex_SetWithEmptyImageListWithImageKey_GetReturnsExpected(int value)
{
using ImageList imageList = new();
using TreeView treeView = new()
{
ImageKey = "imageKey",
ImageList = imageList,
ImageIndex = value
};
Assert.Equal(0, treeView.ImageIndex);
Assert.Empty(treeView.ImageKey);
// Set same.
treeView.ImageIndex = value;
Assert.Equal(0, treeView.ImageIndex);
Assert.Empty(treeView.ImageKey);
}
[WinFormsTheory]
[InlineData(-1, 0)]
[InlineData(0, 0)]
[InlineData(1, 1)]
[InlineData(2, 1)]
public void ImageIndex_SetWithImageList_GetReturnsExpected(int value, int expected)
{
using ImageList imageList = new();
imageList.Images.Add(new Bitmap(10, 10));
imageList.Images.Add(new Bitmap(10, 10));
using TreeView treeView = new()
{
ImageList = imageList,
ImageIndex = value
};
Assert.Equal(expected, treeView.ImageIndex);
Assert.Empty(treeView.ImageKey);
// Set same.
treeView.ImageIndex = value;
Assert.Equal(expected, treeView.ImageIndex);
Assert.Empty(treeView.ImageKey);
}
[WinFormsTheory]
[InlineData(-1, 0)]
[InlineData(0, 0)]
[InlineData(1, 1)]
[InlineData(2, 1)]
public void ImageIndex_SetWithImageListWithImageKey_GetReturnsExpected(int value, int expected)
{
using ImageList imageList = new();
imageList.Images.Add(new Bitmap(10, 10));
imageList.Images.Add("imageKey", new Bitmap(10, 10));
using TreeView treeView = new()
{
ImageKey = "imageKey",
ImageList = imageList,
ImageIndex = value
};
Assert.Equal(expected, treeView.ImageIndex);
Assert.Empty(treeView.ImageKey);
// Set same.
treeView.ImageIndex = value;
Assert.Equal(expected, treeView.ImageIndex);
Assert.Empty(treeView.ImageKey);
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(0)]
[InlineData(1)]
public void ImageIndex_SetWithoutImageListWithHandle_GetReturnsExpected(int value)
{
using TreeView treeView = new();
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.ImageIndex = value;
Assert.Equal(-1, treeView.ImageIndex);
Assert.Empty(treeView.ImageKey);
// Set same.
treeView.ImageIndex = value;
Assert.Equal(-1, treeView.ImageIndex);
Assert.Empty(treeView.ImageKey);
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(0)]
[InlineData(1)]
[InlineData(2)]
public void ImageIndex_SetWithEmptyImageListWithHandle_GetReturnsExpected(int value)
{
using ImageList imageList = new();
using TreeView treeView = new()
{
ImageList = imageList
};
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.ImageIndex = value;
Assert.Equal(0, treeView.ImageIndex);
Assert.Empty(treeView.ImageKey);
// Set same.
treeView.ImageIndex = value;
Assert.Equal(0, treeView.ImageIndex);
Assert.Empty(treeView.ImageKey);
}
[WinFormsTheory]
[InlineData(-1, 0)]
[InlineData(0, 0)]
[InlineData(1, 1)]
[InlineData(2, 1)]
public void ImageIndex_SetWithImageListWithHandle_GetReturnsExpected(int value, int expected)
{
using ImageList imageList = new();
imageList.Images.Add(new Bitmap(10, 10));
imageList.Images.Add(new Bitmap(10, 10));
using TreeView treeView = new()
{
ImageList = imageList
};
Assert.NotEqual(IntPtr.Zero, imageList.Handle);
treeView.ImageIndex = value;
Assert.Equal(expected, treeView.ImageIndex);
Assert.Empty(treeView.ImageKey);
// Set same.
treeView.ImageIndex = value;
Assert.Equal(expected, treeView.ImageIndex);
Assert.Empty(treeView.ImageKey);
}
[WinFormsFact]
public void ImageIndex_SetInvalid_Throws()
{
using TreeView treeView = new();
Assert.Throws<ArgumentOutOfRangeException>("value", () => treeView.ImageIndex = -2);
}
[WinFormsTheory]
[NormalizedStringData]
[InlineData("(none)", "")]
public void ImageKey_SetWithoutImageList_GetReturnsExpected(string value, string expected)
{
using TreeView treeView = new()
{
ImageKey = value
};
Assert.Equal(expected, treeView.ImageKey);
Assert.Equal(-1, treeView.ImageIndex);
// Set same.
treeView.ImageKey = value;
Assert.Equal(expected, treeView.ImageKey);
Assert.Equal(-1, treeView.ImageIndex);
}
[WinFormsTheory]
[NormalizedStringData]
[InlineData("(none)", "")]
public void ImageKey_SetWithoutImageListWithImageIndex_GetReturnsExpected(string value, string expected)
{
using TreeView treeView = new()
{
ImageIndex = 1,
ImageKey = value
};
Assert.Equal(expected, treeView.ImageKey);
Assert.Equal(-1, treeView.ImageIndex);
// Set same.
treeView.ImageKey = value;
Assert.Equal(expected, treeView.ImageKey);
Assert.Equal(-1, treeView.ImageIndex);
}
public static IEnumerable<object[]> ImageKey_Set_TestData()
{
yield return new object[] { null, "", 0 };
yield return new object[] { "", "", 0 };
yield return new object[] { "reasonable", "reasonable", -1 };
yield return new object[] { "(none)", "", 0 };
yield return new object[] { "imageKey", "imageKey", -1 };
yield return new object[] { "ImageKey", "ImageKey", -1 };
}
[WinFormsTheory]
[MemberData(nameof(ImageKey_Set_TestData))]
public void ImageKey_SetWithEmptyImageList_GetReturnsExpected(string value, string expected, int expectedImageIndex)
{
using ImageList imageList = new();
using TreeView treeView = new()
{
ImageList = imageList,
ImageKey = value
};
Assert.Equal(expected, treeView.ImageKey);
Assert.Equal(expectedImageIndex, treeView.ImageIndex);
// Set same.
treeView.ImageKey = value;
Assert.Equal(expected, treeView.ImageKey);
Assert.Equal(expectedImageIndex, treeView.ImageIndex);
}
[WinFormsTheory]
[MemberData(nameof(ImageKey_Set_TestData))]
public void ImageKey_SetWithEmptyImageListWithImageIndex_GetReturnsExpected(string value, string expected, int expectedImageIndex)
{
using ImageList imageList = new();
using TreeView treeView = new()
{
ImageIndex = 1,
ImageList = imageList,
ImageKey = value
};
Assert.Equal(expected, treeView.ImageKey);
Assert.Equal(expectedImageIndex, treeView.ImageIndex);
// Set same.
treeView.ImageKey = value;
Assert.Equal(expected, treeView.ImageKey);
Assert.Equal(expectedImageIndex, treeView.ImageIndex);
}
[WinFormsTheory]
[MemberData(nameof(ImageKey_Set_TestData))]
public void ImageKey_SetWithNonEmptyImageList_GetReturnsExpected(string value, string expected, int expectedImageIndex)
{
using ImageList imageList = new();
imageList.Images.Add(new Bitmap(10, 10));
imageList.Images.Add("imageKey", new Bitmap(10, 10));
using TreeView treeView = new()
{
ImageList = imageList,
ImageKey = value
};
Assert.Equal(expected, treeView.ImageKey);
Assert.Equal(expectedImageIndex, treeView.ImageIndex);
// Set same.
treeView.ImageKey = value;
Assert.Equal(expected, treeView.ImageKey);
Assert.Equal(expectedImageIndex, treeView.ImageIndex);
}
[WinFormsTheory]
[InlineData(null, "", 0)]
[InlineData("", "", 1)]
[InlineData("reasonable", "reasonable", -1)]
[InlineData("(none)", "", 0)]
[InlineData("imageKey", "imageKey", -1)]
[InlineData("ImageKey", "ImageKey", -1)]
public void ImageKey_SetWithNonEmptyImageListWithImageIndex_GetReturnsExpected(string value, string expected, int expectedImageIndex)
{
using ImageList imageList = new();
imageList.Images.Add(new Bitmap(10, 10));
imageList.Images.Add("imageKey", new Bitmap(10, 10));
using TreeView treeView = new()
{
ImageIndex = 1,
ImageList = imageList,
ImageKey = value
};
Assert.Equal(expected, treeView.ImageKey);
Assert.Equal(expectedImageIndex, treeView.ImageIndex);
// Set same.
treeView.ImageKey = value;
Assert.Equal(expected, treeView.ImageKey);
Assert.Equal(expectedImageIndex, treeView.ImageIndex);
}
[WinFormsTheory]
[NormalizedStringData]
[InlineData("(none)", "")]
public void ImageKey_SetWithoutImageListWithHandle_GetReturnsExpected(string value, string expected)
{
using TreeView treeView = new();
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.ImageKey = value;
Assert.Equal(expected, treeView.ImageKey);
Assert.Equal(-1, treeView.ImageIndex);
// Set same.
treeView.ImageKey = value;
Assert.Equal(expected, treeView.ImageKey);
Assert.Equal(-1, treeView.ImageIndex);
}
[WinFormsTheory]
[MemberData(nameof(ImageKey_Set_TestData))]
public void ImageKey_SetWithEmptyImageListWithHandle_GetReturnsExpected(string value, string expected, int expectedImageIndex)
{
using ImageList imageList = new();
using TreeView treeView = new()
{
ImageList = imageList
};
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.ImageKey = value;
Assert.Equal(expected, treeView.ImageKey);
Assert.Equal(expectedImageIndex, treeView.ImageIndex);
// Set same.
treeView.ImageKey = value;
Assert.Equal(expected, treeView.ImageKey);
Assert.Equal(expectedImageIndex, treeView.ImageIndex);
}
[WinFormsTheory]
[MemberData(nameof(ImageKey_Set_TestData))]
public void ImageKey_SetWithNonEmptyImageListWithHandle_GetReturnsExpected(string value, string expected, int expectedImageIndex)
{
using ImageList imageList = new();
imageList.Images.Add(new Bitmap(10, 10));
imageList.Images.Add("imageKey", new Bitmap(10, 10));
using TreeView treeView = new()
{
ImageList = imageList
};
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.ImageKey = value;
Assert.Equal(expected, treeView.ImageKey);
Assert.Equal(expectedImageIndex, treeView.ImageIndex);
// Set same.
treeView.ImageKey = value;
Assert.Equal(expected, treeView.ImageKey);
Assert.Equal(expectedImageIndex, treeView.ImageIndex);
}
public static IEnumerable<object[]> ImageList_TestData()
{
yield return new object[] { null };
yield return new object[] { new ImageList() };
using ImageList imageList = new();
imageList.Images.Add(new Bitmap(10, 10));
yield return new object[] { imageList };
}
[WinFormsTheory]
[MemberData(nameof(ImageList_TestData))]
public void ImageList_Set_GetReturnsExpected(ImageList value)
{
using TreeView treeView = new()
{
ImageList = value
};
Assert.Same(value, treeView.ImageList);
// Set same.
treeView.ImageList = value;
Assert.Same(value, treeView.ImageList);
}
[WinFormsTheory]
[MemberData(nameof(ImageList_TestData))]
public void ImageList_SetWithCheckboxes_GetReturnsExpected(ImageList value)
{
using TreeView treeView = new()
{
CheckBoxes = true,
ImageList = value
};
Assert.Same(value, treeView.ImageList);
// Set same.
treeView.ImageList = value;
Assert.Same(value, treeView.ImageList);
}
[WinFormsTheory]
[MemberData(nameof(ImageList_TestData))]
public void ImageList_SetWithNonNullOldValue_GetReturnsExpected(ImageList value)
{
using ImageList imageList = new();
using TreeView treeView = new()
{
ImageList = imageList
};
treeView.ImageList = value;
Assert.Same(value, treeView.ImageList);
// Set same.
treeView.ImageList = value;
Assert.Same(value, treeView.ImageList);
}
[WinFormsTheory]
[MemberData(nameof(ImageList_TestData))]
public void ImageList_SetWithStateImageList_GetReturnsExpected(ImageList value)
{
using TreeView treeView = new()
{
StateImageList = value,
ImageList = value
};
Assert.Same(value, treeView.ImageList);
// Set same.
treeView.ImageList = value;
Assert.Same(value, treeView.ImageList);
}
[WinFormsTheory]
[MemberData(nameof(ImageList_TestData))]
public void ImageList_SetWithHandle_GetReturnsExpected(ImageList value)
{
using TreeView treeView = new();
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.ImageList = value;
Assert.Same(value, treeView.ImageList);
// Set same.
treeView.ImageList = value;
Assert.Same(value, treeView.ImageList);
}
[WinFormsTheory]
[MemberData(nameof(ImageList_TestData))]
public void ImageList_SetWithHandleWithCheckBoxes_GetReturnsExpected(ImageList value)
{
using TreeView treeView = new()
{
CheckBoxes = true
};
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.ImageList = value;
Assert.Same(value, treeView.ImageList);
// Set same.
treeView.ImageList = value;
Assert.Same(value, treeView.ImageList);
}
[WinFormsTheory]
[MemberData(nameof(ImageList_TestData))]
public void ImageList_SetWithNonNullOldValueWithHandle_GetReturnsExpected(ImageList value)
{
using ImageList imageList = new();
using TreeView treeView = new()
{
ImageList = imageList
};
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.ImageList = value;
Assert.Same(value, treeView.ImageList);
// Set same.
treeView.ImageList = value;
Assert.Same(value, treeView.ImageList);
}
[WinFormsTheory]
[MemberData(nameof(ImageList_TestData))]
public void ImageList_SetWithStateImageListWithHandle_GetReturnsExpected(ImageList value)
{
using TreeView treeView = new()
{
StateImageList = value
};
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.ImageList = value;
Assert.Same(value, treeView.ImageList);
// Set same.
treeView.ImageList = value;
Assert.Same(value, treeView.ImageList);
}
[WinFormsFact]
public void ImageList_Dispose_DetachesFromTreeView()
{
using ImageList imageList1 = new();
using ImageList imageList2 = new();
using TreeView treeView = new()
{
ImageList = imageList1
};
Assert.Same(imageList1, treeView.ImageList);
imageList1.Dispose();
Assert.Null(treeView.ImageList);
// Make sure we detached the setter.
treeView.ImageList = imageList2;
imageList1.Dispose();
Assert.Same(imageList2, treeView.ImageList);
}
[WinFormsFact]
public void ImageList_CreateHandle_DetachesFromTreeView()
{
using ImageList imageList = new();
using TreeView treeView = new()
{
ImageList = imageList
};
Assert.Same(imageList, treeView.ImageList);
Assert.NotEqual(IntPtr.Zero, imageList.Handle);
}
[WinFormsFact]
public void ImageList_CreateHandleWithHandle_DetachesFromTreeView()
{
using ImageList imageList = new();
using TreeView treeView = new()
{
ImageList = imageList
};
Assert.Same(imageList, treeView.ImageList);
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
Assert.NotEqual(IntPtr.Zero, imageList.Handle);
}
[WinFormsFact]
public void ImageList_RecreateHandle_DetachesFromTreeView()
{
using ImageList imageList = new();
using TreeView treeView = new()
{
ImageList = imageList
};
Assert.Same(imageList, treeView.ImageList);
Assert.NotEqual(IntPtr.Zero, imageList.Handle);
imageList.ImageSize = new Size(10, 10);
Assert.NotEqual(IntPtr.Zero, imageList.Handle);
}
[WinFormsFact]
public void ImageList_RecreateHandleWithHandle_DetachesFromTreeView()
{
using ImageList imageList = new();
using TreeView treeView = new()
{
ImageList = imageList
};
Assert.Same(imageList, treeView.ImageList);
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
Assert.NotEqual(IntPtr.Zero, imageList.Handle);
imageList.ImageSize = new Size(10, 10);
Assert.NotEqual(IntPtr.Zero, imageList.Handle);
}
[WinFormsTheory]
[InlineData(-1, 19)]
[InlineData(0, 0)]
[InlineData(1, 1)]
[InlineData(2, 2)]
[InlineData(5, 5)]
[InlineData(6, 6)]
[InlineData(32000, 32000)]
public void Indent_Set_GetReturnsExpected(int value, int expected)
{
using TreeView treeView = new()
{
Indent = value
};
Assert.Equal(expected, treeView.Indent);
// Set same.
treeView.Indent = value;
Assert.Equal(expected, treeView.Indent);
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(0)]
[InlineData(1)]
[InlineData(2)]
[InlineData(5)]
[InlineData(6)]
[InlineData(32000)]
public void Indent_SetWithHandle_GetReturnsExpected(int value)
{
using TreeView treeView = new();
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.Indent = value;
Assert.True(treeView.Indent > 0);
// Set same.
treeView.Indent = value;
Assert.True(treeView.Indent > 0);
}
[WinFormsTheory]
[InlineData(-2)]
[InlineData(32001)]
public void Indent_SetInvalid_ThrowsArgumentOutOfRangeException(int value)
{
using TreeView treeView = new();
Assert.Throws<ArgumentOutOfRangeException>("value", () => treeView.Indent = value);
}
[WinFormsTheory]
[InlineData(-2)]
[InlineData(-1)]
[InlineData(32001)]
public void Indent_SetInvalidWithCustomValue_ThrowsArgumentOutOfRangeException(int indent)
{
using TreeView treeView = new()
{
Indent = 1
};
Assert.Throws<ArgumentOutOfRangeException>("value", () => treeView.Indent = indent);
}
public static IEnumerable<object[]> ItemHeight_Get_TestData()
{
Font font = new(FontFamily.GenericSansSerif, 100);
yield return new object[] { font, true, TreeViewDrawMode.Normal, font.Height + 3 };
yield return new object[] { font, true, TreeViewDrawMode.OwnerDrawText, font.Height + 3 };
yield return new object[] { font, true, TreeViewDrawMode.OwnerDrawAll, font.Height + 3 };
yield return new object[] { font, false, TreeViewDrawMode.Normal, font.Height + 3 };
yield return new object[] { font, false, TreeViewDrawMode.OwnerDrawText, font.Height + 3 };
yield return new object[] { font, false, TreeViewDrawMode.OwnerDrawAll, font.Height + 3 };
Font smallFont = new(FontFamily.GenericSansSerif, 2);
yield return new object[] { smallFont, true, TreeViewDrawMode.Normal, smallFont.Height + 3 };
yield return new object[] { smallFont, true, TreeViewDrawMode.OwnerDrawText, smallFont.Height + 3 };
yield return new object[] { smallFont, true, TreeViewDrawMode.OwnerDrawAll, 16 };
yield return new object[] { smallFont, false, TreeViewDrawMode.Normal, smallFont.Height + 3 };
yield return new object[] { smallFont, false, TreeViewDrawMode.OwnerDrawText, smallFont.Height + 3 };
yield return new object[] { smallFont, false, TreeViewDrawMode.OwnerDrawAll, smallFont.Height + 3 };
}
[WinFormsTheory]
[MemberData(nameof(ItemHeight_Get_TestData))]
public void ItemHeight_Get_ReturnsExpected(Font font, bool checkBoxes, TreeViewDrawMode drawMode, int expectedHeight)
{
using TreeView treeView = new()
{
Font = font,
CheckBoxes = checkBoxes,
DrawMode = drawMode
};
Assert.Equal(expectedHeight, treeView.ItemHeight);
}
public static IEnumerable<object[]> ItemHeight_Set_TestData()
{
yield return new object[] { -1, Control.DefaultFont.Height + 3 };
yield return new object[] { 1, 1 };
yield return new object[] { 2, 2 };
yield return new object[] { 32766, 32766 };
}
[WinFormsTheory]
[MemberData(nameof(ItemHeight_Set_TestData))]
public void TreeView_ItemHeight_Set_GetReturnsExpected(int value, int expected)
{
using TreeView control = new()
{
ItemHeight = value
};
Assert.Equal(expected, control.ItemHeight);
Assert.False(control.IsHandleCreated);
// Set same.
control.ItemHeight = value;
Assert.Equal(expected, control.ItemHeight);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(-1, 0)]
[InlineData(1, 1)]
[InlineData(2, 0)]
[InlineData(32766, 0)]
public void TreeView_ItemHeight_SetWithHandle_GetReturnsExpected(int value, int expectedCreatedCallCount)
{
using TreeView control = new();
Assert.NotEqual(IntPtr.Zero, control.Handle);
int invalidatedCallCount = 0;
control.Invalidated += (sender, e) => invalidatedCallCount++;
int styleChangedCallCount = 0;
control.StyleChanged += (sender, e) => styleChangedCallCount++;
int createdCallCount = 0;
control.HandleCreated += (sender, e) => createdCallCount++;
control.ItemHeight = value;
Assert.True(control.ItemHeight > 0);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(expectedCreatedCallCount, createdCallCount);
// Set same.
control.ItemHeight = value;
Assert.True(control.ItemHeight > 0);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(expectedCreatedCallCount, createdCallCount);
}
[WinFormsTheory]
[InlineData(-2)]
[InlineData(0)]
[InlineData(32767)]
public void TreeView_ItemHeight_SetInvalid_ThrowsArgumentOutOfRangeException(int value)
{
using TreeView control = new();
Assert.Throws<ArgumentOutOfRangeException>("value", () => control.ItemHeight = value);
}
[WinFormsTheory]
[InlineData(-2)]
[InlineData(0)]
[InlineData(-1)]
[InlineData(32767)]
public void TreeView_ItemHeight_SetInvalidWithCustomValue_ThrowsArgumentOutOfRangeException(int indent)
{
using TreeView control = new()
{
ItemHeight = 1
};
Assert.Throws<ArgumentOutOfRangeException>("value", () => control.ItemHeight = indent);
}
[WinFormsTheory]
[BoolData]
public void LabelEdit_Set_GetReturnsExpected(bool value)
{
using TreeView treeView = new()
{
LabelEdit = value
};
Assert.Equal(value, treeView.LabelEdit);
// Set same.
treeView.LabelEdit = value;
Assert.Equal(value, treeView.LabelEdit);
// Set different.
treeView.LabelEdit = !value;
Assert.Equal(!value, treeView.LabelEdit);
}
[WinFormsTheory]
[BoolData]
public void LabelEdit_SetWithHandle_GetReturnsExpected(bool value)
{
using TreeView treeView = new();
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.LabelEdit = value;
Assert.Equal(value, treeView.LabelEdit);
// Set same.
treeView.LabelEdit = value;
Assert.Equal(value, treeView.LabelEdit);
// Set different.
treeView.LabelEdit = !value;
Assert.Equal(!value, treeView.LabelEdit);
}
[WinFormsFact]
public void LabelEdit_SetWithUpdateStylesHandler_DoesNotCallStyleChangedDoesNotCallInvalidated()
{
using TreeView treeView = new()
{
LabelEdit = false
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
// Set different.
treeView.LabelEdit = true;
Assert.True(treeView.LabelEdit);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set same.
treeView.LabelEdit = true;
Assert.True(treeView.LabelEdit);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set different.
treeView.LabelEdit = false;
Assert.False(treeView.LabelEdit);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.LabelEdit = true;
Assert.True(treeView.LabelEdit);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
}
[WinFormsFact]
public void LabelEdit_SetWithUpdateStylesHandlerWithHandle_CallsStyleChangedCallsInvalidated()
{
using TreeView treeView = new()
{
LabelEdit = false
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
// Set different.
treeView.LabelEdit = true;
Assert.True(treeView.LabelEdit);
Assert.Equal(1, styleChangedCallCount);
Assert.Equal(1, invalidatedCallCount);
// Set same.
treeView.LabelEdit = true;
Assert.True(treeView.LabelEdit);
Assert.Equal(1, styleChangedCallCount);
Assert.Equal(1, invalidatedCallCount);
// Set different.
treeView.LabelEdit = false;
Assert.False(treeView.LabelEdit);
Assert.Equal(2, styleChangedCallCount);
Assert.Equal(2, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.LabelEdit = true;
Assert.True(treeView.LabelEdit);
Assert.Equal(2, styleChangedCallCount);
Assert.Equal(2, invalidatedCallCount);
}
[WinFormsTheory]
[CommonMemberData(typeof(CommonTestHelper), nameof(CommonTestHelper.GetColorWithEmptyTheoryData))]
public void LineColor_Set_GetReturnsExpected(Color value)
{
using TreeView treeView = new()
{
LineColor = value
};
Assert.Equal(value, treeView.LineColor);
// Set same.
treeView.LineColor = value;
Assert.Equal(value, treeView.LineColor);
}
[WinFormsTheory]
[StringWithNullData]
public void PathSeparator_Set_GetReturnsExpected(string value)
{
using TreeView treeView = new()
{
PathSeparator = value
};
Assert.Same(value, treeView.PathSeparator);
// Set same.
treeView.PathSeparator = value;
Assert.Same(value, treeView.PathSeparator);
}
[WinFormsTheory]
[CommonMemberData(typeof(CommonTestHelperEx), nameof(CommonTestHelperEx.GetPaddingNormalizedTheoryData))]
public void TreeView_Padding_Set_GetReturnsExpected(Padding value, Padding expected)
{
using TreeView control = new()
{
Padding = value
};
Assert.Equal(expected, control.Padding);
Assert.False(control.IsHandleCreated);
// Set same.
control.Padding = value;
Assert.Equal(expected, control.Padding);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[CommonMemberData(typeof(CommonTestHelperEx), nameof(CommonTestHelperEx.GetPaddingNormalizedTheoryData))]
public void TreeView_Padding_SetWithHandle_GetReturnsExpected(Padding value, Padding expected)
{
using TreeView control = new();
Assert.NotEqual(IntPtr.Zero, control.Handle);
int invalidatedCallCount = 0;
control.Invalidated += (sender, e) => invalidatedCallCount++;
int styleChangedCallCount = 0;
control.StyleChanged += (sender, e) => styleChangedCallCount++;
int createdCallCount = 0;
control.HandleCreated += (sender, e) => createdCallCount++;
control.Padding = value;
Assert.Equal(expected, control.Padding);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
// Set same.
control.Padding = value;
Assert.Equal(expected, control.Padding);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
[WinFormsFact]
public void TreeView_Padding_SetWithHandler_CallsPaddingChanged()
{
using TreeView control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Equal(control, sender);
Assert.Equal(EventArgs.Empty, e);
callCount++;
};
control.PaddingChanged += handler;
// Set different.
Padding padding1 = new(1);
control.Padding = padding1;
Assert.Equal(padding1, control.Padding);
Assert.Equal(1, callCount);
// Set same.
control.Padding = padding1;
Assert.Equal(padding1, control.Padding);
Assert.Equal(1, callCount);
// Set different.
Padding padding2 = new(2);
control.Padding = padding2;
Assert.Equal(padding2, control.Padding);
Assert.Equal(2, callCount);
// Remove handler.
control.PaddingChanged -= handler;
control.Padding = padding1;
Assert.Equal(padding1, control.Padding);
Assert.Equal(2, callCount);
}
[WinFormsTheory]
[InlineData(RightToLeft.Yes, true, 1)]
[InlineData(RightToLeft.Yes, false, 0)]
[InlineData(RightToLeft.No, true, 1)]
[InlineData(RightToLeft.No, false, 0)]
[InlineData(RightToLeft.Inherit, true, 1)]
[InlineData(RightToLeft.Inherit, false, 0)]
public void TrackBar_RightToLeftLayout_Set_GetReturnsExpected(RightToLeft rightToLeft, bool value, int expectedLayoutCallCount)
{
using TreeView control = new()
{
RightToLeft = rightToLeft
};
int layoutCallCount = 0;
control.Layout += (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(control, e.AffectedControl);
Assert.Equal("RightToLeftLayout", e.AffectedProperty);
layoutCallCount++;
};
control.RightToLeftLayout = value;
Assert.Equal(value, control.RightToLeftLayout);
Assert.Equal(expectedLayoutCallCount, layoutCallCount);
Assert.False(control.IsHandleCreated);
// Set same.
control.RightToLeftLayout = value;
Assert.Equal(value, control.RightToLeftLayout);
Assert.Equal(expectedLayoutCallCount, layoutCallCount);
Assert.False(control.IsHandleCreated);
// Set different.
control.RightToLeftLayout = !value;
Assert.Equal(!value, control.RightToLeftLayout);
Assert.Equal(expectedLayoutCallCount + 1, layoutCallCount);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[InlineData(RightToLeft.Yes, true, 1, 1, 2)]
[InlineData(RightToLeft.Yes, false, 0, 0, 1)]
[InlineData(RightToLeft.No, true, 1, 0, 0)]
[InlineData(RightToLeft.No, false, 0, 0, 0)]
[InlineData(RightToLeft.Inherit, true, 1, 0, 0)]
[InlineData(RightToLeft.Inherit, false, 0, 0, 0)]
public void TrackBar_RightToLeftLayout_SetWithHandle_GetReturnsExpected(RightToLeft rightToLeft, bool value, int expectedLayoutCallCount, int expectedCreatedCallCount1, int expectedCreatedCallCount2)
{
using TrackBar control = new()
{
RightToLeft = rightToLeft
};
Assert.NotEqual(IntPtr.Zero, control.Handle);
int invalidatedCallCount = 0;
control.Invalidated += (sender, e) => invalidatedCallCount++;
int styleChangedCallCount = 0;
control.StyleChanged += (sender, e) => styleChangedCallCount++;
int createdCallCount = 0;
control.HandleCreated += (sender, e) => createdCallCount++;
int layoutCallCount = 0;
control.Layout += (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(control, e.AffectedControl);
Assert.Equal("RightToLeftLayout", e.AffectedProperty);
layoutCallCount++;
};
control.RightToLeftLayout = value;
Assert.Equal(value, control.RightToLeftLayout);
Assert.Equal(expectedLayoutCallCount, layoutCallCount);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(expectedCreatedCallCount1, createdCallCount);
// Set same.
control.RightToLeftLayout = value;
Assert.Equal(value, control.RightToLeftLayout);
Assert.Equal(expectedLayoutCallCount, layoutCallCount);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(expectedCreatedCallCount1, createdCallCount);
// Set different.
control.RightToLeftLayout = !value;
Assert.Equal(!value, control.RightToLeftLayout);
Assert.Equal(expectedLayoutCallCount + 1, layoutCallCount);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(expectedCreatedCallCount2, createdCallCount);
}
[WinFormsFact]
public void TrackBar_RightToLeftLayout_SetWithHandler_CallsRightToLeftLayoutChanged()
{
using TrackBar control = new()
{
RightToLeftLayout = true
};
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(EventArgs.Empty, e);
callCount++;
};
control.RightToLeftLayoutChanged += handler;
// Set different.
control.RightToLeftLayout = false;
Assert.False(control.RightToLeftLayout);
Assert.Equal(1, callCount);
// Set same.
control.RightToLeftLayout = false;
Assert.False(control.RightToLeftLayout);
Assert.Equal(1, callCount);
// Set different.
control.RightToLeftLayout = true;
Assert.True(control.RightToLeftLayout);
Assert.Equal(2, callCount);
// Remove handler.
control.RightToLeftLayoutChanged -= handler;
control.RightToLeftLayout = false;
Assert.False(control.RightToLeftLayout);
Assert.Equal(2, callCount);
}
[WinFormsFact]
public void TrackBar_RightToLeftLayout_SetWithHandlerInDisposing_DoesNotRightToLeftLayoutChanged()
{
using TrackBar control = new()
{
RightToLeft = RightToLeft.Yes
};
Assert.NotEqual(IntPtr.Zero, control.Handle);
int callCount = 0;
control.RightToLeftLayoutChanged += (sender, e) => callCount++;
int createdCallCount = 0;
control.HandleCreated += (sender, e) => createdCallCount++;
int disposedCallCount = 0;
control.Disposed += (sender, e) =>
{
control.RightToLeftLayout = true;
Assert.True(control.RightToLeftLayout);
Assert.Equal(0, callCount);
Assert.Equal(0, createdCallCount);
disposedCallCount++;
};
control.Dispose();
Assert.Equal(1, disposedCallCount);
}
[WinFormsTheory]
[BoolData]
public void Scrollable_Set_GetReturnsExpected(bool value)
{
using TreeView treeView = new()
{
Scrollable = value
};
Assert.Equal(value, treeView.Scrollable);
// Set same.
treeView.Scrollable = value;
Assert.Equal(value, treeView.Scrollable);
// Set different.
treeView.Scrollable = !value;
Assert.Equal(!value, treeView.Scrollable);
}
[WinFormsTheory]
[BoolData]
public void Scrollable_SetWithHandle_GetReturnsExpected(bool value)
{
using TreeView treeView = new();
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.Scrollable = value;
Assert.Equal(value, treeView.Scrollable);
// Set same.
treeView.Scrollable = value;
Assert.Equal(value, treeView.Scrollable);
// Set different.
treeView.Scrollable = !value;
Assert.Equal(!value, treeView.Scrollable);
}
[WinFormsFact]
public void Scrollable_SetWithUpdateStylesHandler_DoesNotCallStyleChangedDoesNotCallInvalidated()
{
using TreeView treeView = new()
{
Scrollable = true
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
// Set different.
treeView.Scrollable = false;
Assert.False(treeView.Scrollable);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set same.
treeView.Scrollable = false;
Assert.False(treeView.Scrollable);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set different.
treeView.Scrollable = true;
Assert.True(treeView.Scrollable);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.Scrollable = false;
Assert.False(treeView.Scrollable);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
}
[WinFormsFact]
public void Scrollable_SetWithUpdateStylesHandlerWithHandle_DoesNotCallStyleChangedDoesNotCallInvalidated()
{
using TreeView treeView = new()
{
Scrollable = true
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
// Set different.
treeView.Scrollable = false;
Assert.False(treeView.Scrollable);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set same.
treeView.Scrollable = false;
Assert.False(treeView.Scrollable);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set different.
treeView.Scrollable = true;
Assert.True(treeView.Scrollable);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.Scrollable = false;
Assert.False(treeView.Scrollable);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(0)]
[InlineData(1)]
public void SelectedImageIndex_SetWithoutImageList_GetReturnsExpected(int value)
{
using TreeView treeView = new()
{
SelectedImageIndex = value
};
Assert.Equal(-1, treeView.SelectedImageIndex);
Assert.Empty(treeView.SelectedImageKey);
// Set same.
treeView.SelectedImageIndex = value;
Assert.Equal(-1, treeView.SelectedImageIndex);
Assert.Empty(treeView.SelectedImageKey);
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(0)]
[InlineData(1)]
public void SelectedImageIndex_SetWithoutImageListWithImageKey_GetReturnsExpected(int value)
{
using TreeView treeView = new()
{
ImageKey = "imageKey",
SelectedImageIndex = value
};
Assert.Equal(-1, treeView.SelectedImageIndex);
Assert.Empty(treeView.SelectedImageKey);
// Set same.
treeView.SelectedImageIndex = value;
Assert.Equal(-1, treeView.SelectedImageIndex);
Assert.Empty(treeView.SelectedImageKey);
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(0)]
[InlineData(1)]
[InlineData(2)]
public void SelectedImageIndex_SetWithEmptyImageList_GetReturnsExpected(int value)
{
using ImageList imageList = new();
using TreeView treeView = new()
{
ImageList = imageList,
SelectedImageIndex = value
};
Assert.Equal(0, treeView.SelectedImageIndex);
Assert.Empty(treeView.SelectedImageKey);
// Set same.
treeView.SelectedImageIndex = value;
Assert.Equal(0, treeView.SelectedImageIndex);
Assert.Empty(treeView.SelectedImageKey);
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(0)]
[InlineData(1)]
[InlineData(2)]
public void SelectedImageIndex_SetWithEmptyImageListWithImageKey_GetReturnsExpected(int value)
{
using ImageList imageList = new();
using TreeView treeView = new()
{
ImageKey = "imageKey",
ImageList = imageList,
SelectedImageIndex = value
};
Assert.Equal(0, treeView.SelectedImageIndex);
Assert.Empty(treeView.SelectedImageKey);
// Set same.
treeView.SelectedImageIndex = value;
Assert.Equal(0, treeView.SelectedImageIndex);
Assert.Empty(treeView.SelectedImageKey);
}
[WinFormsTheory]
[InlineData(-1, 0)]
[InlineData(0, 0)]
[InlineData(1, 1)]
[InlineData(2, 1)]
public void SelectedImageIndex_SetWithImageList_GetReturnsExpected(int value, int expected)
{
using ImageList imageList = new();
imageList.Images.Add(new Bitmap(10, 10));
imageList.Images.Add(new Bitmap(10, 10));
using TreeView treeView = new()
{
ImageList = imageList,
SelectedImageIndex = value
};
Assert.Equal(expected, treeView.SelectedImageIndex);
Assert.Empty(treeView.SelectedImageKey);
// Set same.
treeView.SelectedImageIndex = value;
Assert.Equal(expected, treeView.SelectedImageIndex);
Assert.Empty(treeView.SelectedImageKey);
}
[WinFormsTheory]
[InlineData(-1, 0)]
[InlineData(0, 0)]
[InlineData(1, 1)]
[InlineData(2, 1)]
public void SelectedImageIndex_SetWithImageListWithImageKey_GetReturnsExpected(int value, int expected)
{
using ImageList imageList = new();
imageList.Images.Add(new Bitmap(10, 10));
imageList.Images.Add("imageKey", new Bitmap(10, 10));
using TreeView treeView = new()
{
ImageKey = "imageKey",
ImageList = imageList,
SelectedImageIndex = value
};
Assert.Equal(expected, treeView.SelectedImageIndex);
Assert.Empty(treeView.SelectedImageKey);
// Set same.
treeView.SelectedImageIndex = value;
Assert.Equal(expected, treeView.SelectedImageIndex);
Assert.Empty(treeView.SelectedImageKey);
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(0)]
[InlineData(1)]
public void SelectedImageIndex_SetWithoutImageListWithHandle_GetReturnsExpected(int value)
{
using TreeView treeView = new();
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.SelectedImageIndex = value;
Assert.Equal(-1, treeView.SelectedImageIndex);
Assert.Empty(treeView.SelectedImageKey);
// Set same.
treeView.SelectedImageIndex = value;
Assert.Equal(-1, treeView.SelectedImageIndex);
Assert.Empty(treeView.SelectedImageKey);
}
[WinFormsTheory]
[InlineData(-1)]
[InlineData(0)]
[InlineData(1)]
[InlineData(2)]
public void SelectedImageIndex_SetWithEmptyImageListWithHandle_GetReturnsExpected(int value)
{
using ImageList imageList = new();
using TreeView treeView = new()
{
ImageList = imageList
};
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.SelectedImageIndex = value;
Assert.Equal(0, treeView.SelectedImageIndex);
Assert.Empty(treeView.SelectedImageKey);
// Set same.
treeView.SelectedImageIndex = value;
Assert.Equal(0, treeView.SelectedImageIndex);
Assert.Empty(treeView.SelectedImageKey);
}
[WinFormsTheory]
[InlineData(-1, 0)]
[InlineData(0, 0)]
[InlineData(1, 1)]
[InlineData(2, 1)]
public void SelectedImageIndex_SetWithImageListWithHandle_GetReturnsExpected(int value, int expected)
{
using ImageList imageList = new();
imageList.Images.Add(new Bitmap(10, 10));
imageList.Images.Add(new Bitmap(10, 10));
using TreeView treeView = new()
{
ImageList = imageList
};
Assert.NotEqual(IntPtr.Zero, imageList.Handle);
treeView.SelectedImageIndex = value;
Assert.Equal(expected, treeView.SelectedImageIndex);
Assert.Empty(treeView.SelectedImageKey);
// Set same.
treeView.SelectedImageIndex = value;
Assert.Equal(expected, treeView.SelectedImageIndex);
Assert.Empty(treeView.SelectedImageKey);
}
[WinFormsFact]
public void SelectedImageIndex_SetInvalid_Throws()
{
using TreeView treeView = new();
Assert.Throws<ArgumentOutOfRangeException>("value", () => treeView.SelectedImageIndex = -2);
}
[WinFormsTheory]
[NormalizedStringData]
[InlineData("(none)", "")]
public void SelectedImageKey_SetWithoutImageList_GetReturnsExpected(string value, string expected)
{
using TreeView treeView = new()
{
SelectedImageKey = value
};
Assert.Equal(expected, treeView.SelectedImageKey);
Assert.Equal(-1, treeView.SelectedImageIndex);
// Set same.
treeView.SelectedImageKey = value;
Assert.Equal(expected, treeView.SelectedImageKey);
Assert.Equal(-1, treeView.SelectedImageIndex);
}
[WinFormsTheory]
[NormalizedStringData]
[InlineData("(none)", "")]
public void SelectedImageKey_SetWithoutImageListWithImageIndex_GetReturnsExpected(string value, string expected)
{
using TreeView treeView = new()
{
SelectedImageIndex = 1,
SelectedImageKey = value
};
Assert.Equal(expected, treeView.SelectedImageKey);
Assert.Equal(-1, treeView.SelectedImageIndex);
// Set same.
treeView.SelectedImageKey = value;
Assert.Equal(expected, treeView.SelectedImageKey);
Assert.Equal(-1, treeView.SelectedImageIndex);
}
[WinFormsTheory]
[MemberData(nameof(ImageKey_Set_TestData))]
public void SelectedImageKey_SetWithEmptyImageList_GetReturnsExpected(string value, string expected, int expectedImageIndex)
{
using ImageList imageList = new();
using TreeView treeView = new()
{
ImageList = imageList,
SelectedImageKey = value
};
Assert.Equal(expected, treeView.SelectedImageKey);
Assert.Equal(expectedImageIndex, treeView.SelectedImageIndex);
// Set same.
treeView.SelectedImageKey = value;
Assert.Equal(expected, treeView.SelectedImageKey);
Assert.Equal(expectedImageIndex, treeView.SelectedImageIndex);
}
[WinFormsTheory]
[MemberData(nameof(ImageKey_Set_TestData))]
public void SelectedImageKey_SetWithEmptyImageListWithImageIndex_GetReturnsExpected(string value, string expected, int expectedImageIndex)
{
using ImageList imageList = new();
using TreeView treeView = new()
{
SelectedImageIndex = 1,
ImageList = imageList,
SelectedImageKey = value
};
Assert.Equal(expected, treeView.SelectedImageKey);
Assert.Equal(expectedImageIndex, treeView.SelectedImageIndex);
// Set same.
treeView.SelectedImageKey = value;
Assert.Equal(expected, treeView.SelectedImageKey);
Assert.Equal(expectedImageIndex, treeView.SelectedImageIndex);
}
[WinFormsTheory]
[MemberData(nameof(ImageKey_Set_TestData))]
public void SelectedImageKey_SetWithNonEmptyImageList_GetReturnsExpected(string value, string expected, int expectedImageIndex)
{
using ImageList imageList = new();
imageList.Images.Add(new Bitmap(10, 10));
imageList.Images.Add("imageKey", new Bitmap(10, 10));
using TreeView treeView = new()
{
ImageList = imageList,
SelectedImageKey = value
};
Assert.Equal(expected, treeView.SelectedImageKey);
Assert.Equal(expectedImageIndex, treeView.SelectedImageIndex);
// Set same.
treeView.SelectedImageKey = value;
Assert.Equal(expected, treeView.SelectedImageKey);
Assert.Equal(expectedImageIndex, treeView.SelectedImageIndex);
}
[WinFormsTheory]
[InlineData(null, "", 0)]
[InlineData("", "", 1)]
[InlineData("reasonable", "reasonable", -1)]
[InlineData("(none)", "", 0)]
[InlineData("imageKey", "imageKey", -1)]
[InlineData("ImageKey", "ImageKey", -1)]
public void SelectedImageKey_SetWithNonEmptyImageListWithImageIndex_GetReturnsExpected(string value, string expected, int expectedImageIndex)
{
using ImageList imageList = new();
imageList.Images.Add(new Bitmap(10, 10));
imageList.Images.Add("imageKey", new Bitmap(10, 10));
using TreeView treeView = new()
{
SelectedImageIndex = 1,
ImageList = imageList,
SelectedImageKey = value
};
Assert.Equal(expected, treeView.SelectedImageKey);
Assert.Equal(expectedImageIndex, treeView.SelectedImageIndex);
// Set same.
treeView.SelectedImageKey = value;
Assert.Equal(expected, treeView.SelectedImageKey);
Assert.Equal(expectedImageIndex, treeView.SelectedImageIndex);
}
[WinFormsTheory]
[NormalizedStringData]
[InlineData("(none)", "")]
public void SelectedImageKey_SetWithoutImageListWithHandle_GetReturnsExpected(string value, string expected)
{
using TreeView treeView = new();
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.SelectedImageKey = value;
Assert.Equal(expected, treeView.SelectedImageKey);
Assert.Equal(-1, treeView.SelectedImageIndex);
// Set same.
treeView.SelectedImageKey = value;
Assert.Equal(expected, treeView.SelectedImageKey);
Assert.Equal(-1, treeView.SelectedImageIndex);
}
[WinFormsTheory]
[MemberData(nameof(ImageKey_Set_TestData))]
public void SelectedImageKey_SetWithEmptyImageListWithHandle_GetReturnsExpected(string value, string expected, int expectedImageIndex)
{
using ImageList imageList = new();
using TreeView treeView = new()
{
ImageList = imageList
};
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.SelectedImageKey = value;
Assert.Equal(expected, treeView.SelectedImageKey);
Assert.Equal(expectedImageIndex, treeView.SelectedImageIndex);
// Set same.
treeView.SelectedImageKey = value;
Assert.Equal(expected, treeView.SelectedImageKey);
Assert.Equal(expectedImageIndex, treeView.SelectedImageIndex);
}
[WinFormsTheory]
[MemberData(nameof(ImageKey_Set_TestData))]
public void SelectedImageKey_SetWithNonEmptyImageListWithHandle_GetReturnsExpected(string value, string expected, int expectedImageIndex)
{
using ImageList imageList = new();
imageList.Images.Add(new Bitmap(10, 10));
imageList.Images.Add("imageKey", new Bitmap(10, 10));
using TreeView treeView = new()
{
ImageList = imageList
};
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.SelectedImageKey = value;
Assert.Equal(expected, treeView.SelectedImageKey);
Assert.Equal(expectedImageIndex, treeView.SelectedImageIndex);
// Set same.
treeView.SelectedImageKey = value;
Assert.Equal(expected, treeView.SelectedImageKey);
Assert.Equal(expectedImageIndex, treeView.SelectedImageIndex);
}
[WinFormsTheory]
[BoolData]
public void ShowLines_Set_GetReturnsExpected(bool value)
{
using TreeView treeView = new()
{
ShowLines = value
};
Assert.Equal(value, treeView.ShowLines);
// Set same.
treeView.ShowLines = value;
Assert.Equal(value, treeView.ShowLines);
// Set different.
treeView.ShowLines = !value;
Assert.Equal(!value, treeView.ShowLines);
}
[WinFormsTheory]
[BoolData]
public void ShowLines_SetWithHandle_GetReturnsExpected(bool value)
{
using TreeView treeView = new();
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.ShowLines = value;
Assert.Equal(value, treeView.ShowLines);
// Set same.
treeView.ShowLines = value;
Assert.Equal(value, treeView.ShowLines);
// Set different.
treeView.ShowLines = !value;
Assert.Equal(!value, treeView.ShowLines);
}
[WinFormsFact]
public void ShowLines_SetWithUpdateStylesHandler_DoesNotCallStyleChangedDoesNotCallInvalidated()
{
using TreeView treeView = new()
{
ShowLines = false
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
// Set different.
treeView.ShowLines = true;
Assert.True(treeView.ShowLines);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set same.
treeView.ShowLines = true;
Assert.True(treeView.ShowLines);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set different.
treeView.ShowLines = false;
Assert.False(treeView.ShowLines);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.ShowLines = true;
Assert.True(treeView.ShowLines);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
}
[WinFormsFact]
public void ShowLines_SetWithUpdateStylesHandlerWithHandle_CallsStyleChangedCallsInvalidated()
{
using TreeView treeView = new()
{
ShowLines = true
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
// Set different.
treeView.ShowLines = false;
Assert.False(treeView.ShowLines);
Assert.Equal(1, styleChangedCallCount);
Assert.Equal(1, invalidatedCallCount);
// Set same.
treeView.ShowLines = false;
Assert.False(treeView.ShowLines);
Assert.Equal(1, styleChangedCallCount);
Assert.Equal(1, invalidatedCallCount);
// Set different.
treeView.ShowLines = true;
Assert.True(treeView.ShowLines);
Assert.Equal(2, styleChangedCallCount);
Assert.Equal(2, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.ShowLines = false;
Assert.False(treeView.ShowLines);
Assert.Equal(2, styleChangedCallCount);
Assert.Equal(2, invalidatedCallCount);
}
[WinFormsTheory]
[BoolData]
public void ShowNodeToolTips_Set_GetReturnsExpected(bool value)
{
using TreeView treeView = new()
{
ShowNodeToolTips = value
};
Assert.Equal(value, treeView.ShowNodeToolTips);
// Set same.
treeView.ShowNodeToolTips = value;
Assert.Equal(value, treeView.ShowNodeToolTips);
// Set different.
treeView.ShowNodeToolTips = !value;
Assert.Equal(!value, treeView.ShowNodeToolTips);
}
[WinFormsTheory]
[BoolData]
public void ShowNodeToolTips_SetWithHandle_GetReturnsExpected(bool value)
{
using TreeView treeView = new();
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.ShowNodeToolTips = value;
Assert.Equal(value, treeView.ShowNodeToolTips);
// Set same.
treeView.ShowNodeToolTips = value;
Assert.Equal(value, treeView.ShowNodeToolTips);
// Set different.
treeView.ShowNodeToolTips = !value;
Assert.Equal(!value, treeView.ShowNodeToolTips);
}
[WinFormsFact]
public void ShowNodeToolTips_SetWithUpdateStylesHandler_DoesNotCallStyleChangedDoesNotCallInvalidated()
{
using TreeView treeView = new()
{
ShowNodeToolTips = false
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
// Set different.
treeView.ShowNodeToolTips = true;
Assert.True(treeView.ShowNodeToolTips);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set same.
treeView.ShowNodeToolTips = true;
Assert.True(treeView.ShowNodeToolTips);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set different.
treeView.ShowNodeToolTips = false;
Assert.False(treeView.ShowNodeToolTips);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.ShowNodeToolTips = true;
Assert.True(treeView.ShowNodeToolTips);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
}
[WinFormsFact]
public void ShowNodeToolTips_SetWithUpdateStylesHandlerWithHandle_DoesNotCallStyleChangedDoesNotCallInvalidated()
{
using TreeView treeView = new()
{
ShowNodeToolTips = true
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
// Set different.
treeView.ShowNodeToolTips = true;
Assert.True(treeView.ShowNodeToolTips);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set same.
treeView.ShowNodeToolTips = true;
Assert.True(treeView.ShowNodeToolTips);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set different.
treeView.ShowNodeToolTips = false;
Assert.False(treeView.ShowNodeToolTips);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.ShowNodeToolTips = true;
Assert.True(treeView.ShowNodeToolTips);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
}
[WinFormsTheory]
[BoolData]
public void ShowPlusMinus_Set_GetReturnsExpected(bool value)
{
using TreeView treeView = new()
{
ShowPlusMinus = value
};
Assert.Equal(value, treeView.ShowPlusMinus);
// Set same.
treeView.ShowPlusMinus = value;
Assert.Equal(value, treeView.ShowPlusMinus);
// Set different.
treeView.ShowPlusMinus = !value;
Assert.Equal(!value, treeView.ShowPlusMinus);
}
[WinFormsTheory]
[BoolData]
public void ShowPlusMinus_SetWithHandle_GetReturnsExpected(bool value)
{
using TreeView treeView = new();
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.ShowPlusMinus = value;
Assert.Equal(value, treeView.ShowPlusMinus);
// Set same.
treeView.ShowPlusMinus = value;
Assert.Equal(value, treeView.ShowPlusMinus);
// Set different.
treeView.ShowPlusMinus = !value;
Assert.Equal(!value, treeView.ShowPlusMinus);
}
[WinFormsFact]
public void ShowPlusMinus_SetWithUpdateStylesHandler_DoesNotCallStyleChangedDoesNotCallInvalidated()
{
using TreeView treeView = new()
{
ShowPlusMinus = true
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
// Set different.
treeView.ShowPlusMinus = false;
Assert.False(treeView.ShowPlusMinus);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set same.
treeView.ShowPlusMinus = false;
Assert.False(treeView.ShowPlusMinus);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set different.
treeView.ShowPlusMinus = true;
Assert.True(treeView.ShowPlusMinus);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.ShowPlusMinus = false;
Assert.False(treeView.ShowPlusMinus);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
}
[WinFormsFact]
public void ShowPlusMinus_SetWithUpdateStylesHandlerWithHandle_CallsStyleChangedCallsInvalidated()
{
using TreeView treeView = new()
{
ShowPlusMinus = true
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
// Set different.
treeView.ShowPlusMinus = false;
Assert.False(treeView.ShowPlusMinus);
Assert.Equal(1, styleChangedCallCount);
Assert.Equal(1, invalidatedCallCount);
// Set same.
treeView.ShowPlusMinus = false;
Assert.False(treeView.ShowPlusMinus);
Assert.Equal(1, styleChangedCallCount);
Assert.Equal(1, invalidatedCallCount);
// Set different.
treeView.ShowPlusMinus = true;
Assert.True(treeView.ShowPlusMinus);
Assert.Equal(2, styleChangedCallCount);
Assert.Equal(2, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.ShowPlusMinus = false;
Assert.False(treeView.ShowPlusMinus);
Assert.Equal(2, styleChangedCallCount);
Assert.Equal(2, invalidatedCallCount);
}
[WinFormsTheory]
[BoolData]
public void ShowRootLines_Set_GetReturnsExpected(bool value)
{
using TreeView treeView = new()
{
ShowRootLines = value
};
Assert.Equal(value, treeView.ShowRootLines);
// Set same.
treeView.ShowRootLines = value;
Assert.Equal(value, treeView.ShowRootLines);
// Set different.
treeView.ShowRootLines = !value;
Assert.Equal(!value, treeView.ShowRootLines);
}
[WinFormsTheory]
[BoolData]
public void ShowRootLines_SetWithHandle_GetReturnsExpected(bool value)
{
using TreeView treeView = new();
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.ShowRootLines = value;
Assert.Equal(value, treeView.ShowRootLines);
// Set same.
treeView.ShowRootLines = value;
Assert.Equal(value, treeView.ShowRootLines);
// Set different.
treeView.ShowRootLines = !value;
Assert.Equal(!value, treeView.ShowRootLines);
}
[WinFormsFact]
public void ShowRootLines_SetWithUpdateStylesHandler_DoesNotCallStyleChangedDoesNotCallInvalidated()
{
using TreeView treeView = new()
{
ShowRootLines = true
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
// Set different.
treeView.ShowRootLines = false;
Assert.False(treeView.ShowRootLines);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set same.
treeView.ShowRootLines = false;
Assert.False(treeView.ShowRootLines);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set different.
treeView.ShowRootLines = true;
Assert.True(treeView.ShowRootLines);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.ShowRootLines = false;
Assert.False(treeView.ShowRootLines);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
}
[WinFormsFact]
public void ShowRootLines_SetWithUpdateStylesHandlerWithHandle_CallsStyleChangedCallsInvalidated()
{
using TreeView treeView = new()
{
ShowRootLines = true
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
// Set different.
treeView.ShowRootLines = false;
Assert.False(treeView.ShowRootLines);
Assert.Equal(1, styleChangedCallCount);
Assert.Equal(1, invalidatedCallCount);
// Set same.
treeView.ShowRootLines = false;
Assert.False(treeView.ShowRootLines);
Assert.Equal(1, styleChangedCallCount);
Assert.Equal(1, invalidatedCallCount);
// Set different.
treeView.ShowRootLines = true;
Assert.True(treeView.ShowRootLines);
Assert.Equal(2, styleChangedCallCount);
Assert.Equal(2, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.ShowRootLines = false;
Assert.False(treeView.ShowRootLines);
Assert.Equal(2, styleChangedCallCount);
Assert.Equal(2, invalidatedCallCount);
}
[WinFormsTheory]
[BoolData]
public void Sorted_Set_GetReturnsExpected(bool value)
{
using TreeView treeView = new()
{
Sorted = value
};
Assert.Equal(value, treeView.Sorted);
// Set same.
treeView.Sorted = value;
Assert.Equal(value, treeView.Sorted);
// Set different.
treeView.Sorted = !value;
Assert.Equal(!value, treeView.Sorted);
}
[WinFormsTheory]
[BoolData]
public void Sorted_SetWithHandle_GetReturnsExpected(bool value)
{
using TreeView treeView = new();
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.Sorted = value;
Assert.Equal(value, treeView.Sorted);
// Set same.
treeView.Sorted = value;
Assert.Equal(value, treeView.Sorted);
// Set different.
treeView.Sorted = !value;
Assert.Equal(!value, treeView.Sorted);
}
[WinFormsFact]
public void Sorted_SetWithUpdateStylesHandler_DoesNotCallStyleChangedDoesNotCallInvalidated()
{
using TreeView treeView = new()
{
Sorted = false
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
// Set different.
treeView.Sorted = true;
Assert.True(treeView.Sorted);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set same.
treeView.Sorted = true;
Assert.True(treeView.Sorted);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set different.
treeView.Sorted = false;
Assert.False(treeView.Sorted);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.Sorted = true;
Assert.True(treeView.Sorted);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
}
[WinFormsFact]
public void Sorted_SetWithUpdateStylesHandlerWithHandle_DoesNotCallStyleChangedDoesNotCallInvalidated()
{
using TreeView treeView = new()
{
Sorted = false
};
int styleChangedCallCount = 0;
int invalidatedCallCount = 0;
EventHandler styleChangedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.Same(EventArgs.Empty, e);
styleChangedCallCount++;
};
InvalidateEventHandler invalidatedHandler = (sender, e) =>
{
Assert.Same(treeView, sender);
Assert.NotNull(e);
invalidatedCallCount++;
};
treeView.StyleChanged += styleChangedHandler;
treeView.Invalidated += invalidatedHandler;
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
// Set different.
treeView.Sorted = true;
Assert.True(treeView.Sorted);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set same.
treeView.Sorted = true;
Assert.True(treeView.Sorted);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Set different.
treeView.Sorted = false;
Assert.False(treeView.Sorted);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
// Remove handler.
treeView.StyleChanged -= styleChangedHandler;
treeView.Invalidated -= invalidatedHandler;
treeView.Sorted = true;
Assert.True(treeView.Sorted);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, invalidatedCallCount);
}
[WinFormsTheory]
[MemberData(nameof(ImageList_TestData))]
public void StateImageList_Set_GetReturnsExpected(ImageList value)
{
using TreeView treeView = new()
{
StateImageList = value
};
Assert.Same(value, treeView.StateImageList);
// Set same.
treeView.StateImageList = value;
Assert.Same(value, treeView.StateImageList);
}
[WinFormsTheory]
[MemberData(nameof(ImageList_TestData))]
public void StateImageList_SetWithNonNullOldValue_GetReturnsExpected(ImageList value)
{
using ImageList imageList = new();
using TreeView treeView = new()
{
StateImageList = imageList
};
treeView.StateImageList = value;
Assert.Same(value, treeView.StateImageList);
// Set same.
treeView.StateImageList = value;
Assert.Same(value, treeView.StateImageList);
}
[WinFormsTheory]
[MemberData(nameof(ImageList_TestData))]
public void StateImageList_SetWithHandle_GetReturnsExpected(ImageList value)
{
using TreeView treeView = new();
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.StateImageList = value;
Assert.Same(value, treeView.StateImageList);
// Set same.
treeView.StateImageList = value;
Assert.Same(value, treeView.StateImageList);
}
[WinFormsTheory]
[MemberData(nameof(ImageList_TestData))]
public void StateImageList_SetWithNonNullOldValueWithHandle_GetReturnsExpected(ImageList value)
{
using ImageList imageList = new();
using TreeView treeView = new()
{
StateImageList = imageList
};
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
treeView.StateImageList = value;
Assert.Same(value, treeView.StateImageList);
// Set same.
treeView.StateImageList = value;
Assert.Same(value, treeView.StateImageList);
}
[WinFormsFact]
public void StateImageList_Dispose_DetachesFromTreeView()
{
using ImageList imageList1 = new();
using ImageList imageList2 = new();
using TreeView treeView = new()
{
StateImageList = imageList1
};
Assert.Same(imageList1, treeView.StateImageList);
imageList1.Dispose();
Assert.Null(treeView.StateImageList);
// Make sure we detached the setter.
treeView.StateImageList = imageList2;
imageList1.Dispose();
Assert.Same(imageList2, treeView.StateImageList);
}
[WinFormsFact]
public void StateImageList_CreateHandle_DetachesFromTreeView()
{
using ImageList imageList = new();
using TreeView treeView = new()
{
StateImageList = imageList
};
Assert.Same(imageList, treeView.StateImageList);
Assert.NotEqual(IntPtr.Zero, imageList.Handle);
}
[WinFormsFact]
public void StateImageList_CreateHandleWithHandle_DetachesFromTreeView()
{
using ImageList imageList = new();
using TreeView treeView = new()
{
StateImageList = imageList
};
Assert.Same(imageList, treeView.StateImageList);
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
Assert.NotEqual(IntPtr.Zero, imageList.Handle);
}
[WinFormsFact]
public void StateImageList_RecreateHandle_DetachesFromTreeView()
{
using ImageList imageList = new();
using TreeView treeView = new()
{
StateImageList = imageList
};
Assert.Same(imageList, treeView.StateImageList);
Assert.NotEqual(IntPtr.Zero, imageList.Handle);
imageList.ImageSize = new Size(10, 10);
Assert.NotEqual(IntPtr.Zero, imageList.Handle);
}
[WinFormsFact]
public void StateImageList_RecreateHandleWithHandle_DetachesFromTreeView()
{
using ImageList imageList = new();
using TreeView treeView = new()
{
StateImageList = imageList
};
Assert.Same(imageList, treeView.StateImageList);
Assert.NotEqual(IntPtr.Zero, treeView.Handle);
Assert.NotEqual(IntPtr.Zero, imageList.Handle);
imageList.ImageSize = new Size(10, 10);
Assert.NotEqual(IntPtr.Zero, imageList.Handle);
}
[WinFormsTheory]
[NormalizedStringData]
public void Text_Set_GetReturnsExpected(string value, string expected)
{
using TreeView control = new()
{
Text = value
};
Assert.Equal(expected, control.Text);
Assert.False(control.IsHandleCreated);
// Set same.
control.Text = value;
Assert.Equal(expected, control.Text);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[NormalizedStringData]
public void TreeView_Text_SetWithHandle_GetReturnsExpected(string value, string expected)
{
using TreeView control = new();
Assert.NotEqual(IntPtr.Zero, control.Handle);
int invalidatedCallCount = 0;
control.Invalidated += (sender, e) => invalidatedCallCount++;
int styleChangedCallCount = 0;
control.StyleChanged += (sender, e) => styleChangedCallCount++;
int createdCallCount = 0;
control.HandleCreated += (sender, e) => createdCallCount++;
control.Text = value;
Assert.Equal(expected, control.Text);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
// Set same.
control.Text = value;
Assert.Equal(expected, control.Text);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
[WinFormsFact]
public void Text_SetWithHandler_CallsTextChanged()
{
using TreeView control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(EventArgs.Empty, e);
callCount++;
};
control.TextChanged += handler;
// Set different.
control.Text = "text";
Assert.Equal("text", control.Text);
Assert.Equal(1, callCount);
// Set same.
control.Text = "text";
Assert.Equal("text", control.Text);
Assert.Equal(1, callCount);
// Set different.
control.Text = "otherText";
Assert.Equal("otherText", control.Text);
Assert.Equal(2, callCount);
// Set null.
control.Text = null;
Assert.Empty(control.Text);
Assert.Equal(3, callCount);
// Set empty.
control.Text = string.Empty;
Assert.Empty(control.Text);
Assert.Equal(3, callCount);
// Remove handler.
control.TextChanged -= handler;
control.Text = "text";
Assert.Equal("text", control.Text);
Assert.Equal(3, callCount);
}
public static IEnumerable<object[]> TreeViewNodeSorter_TestData()
{
yield return new object[] { null };
yield return new object[] { StringComparer.CurrentCulture };
}
[WinFormsTheory]
[MemberData(nameof(TreeViewNodeSorter_TestData))]
public void TreeViewNodeSorter_Set_GetReturnsExpected(IComparer value)
{
using TreeView treeView = new()
{
TreeViewNodeSorter = value
};
Assert.Same(value, treeView.TreeViewNodeSorter);
// Set same.
treeView.TreeViewNodeSorter = value;
Assert.Same(value, treeView.TreeViewNodeSorter);
}
[WinFormsFact]
public void TreeViewNodeSorter_Set_SortedFalseIfNull()
{
using TreeView treeView = new()
{
TreeViewNodeSorter = StringComparer.CurrentCulture
};
Assert.True(treeView.Sorted);
treeView.TreeViewNodeSorter = null;
Assert.False(treeView.Sorted);
}
[WinFormsFact]
public void AddExistingNodeAsChild_ThrowsArgumentException()
{
using TreeView treeView = new();
TreeNode node = new();
treeView.Nodes.Add(node);
Assert.Throws<ArgumentException>(() => node.Nodes.Add(node));
}
[WinFormsFact]
public void TreeView_GetAutoSizeMode_Invoke_ReturnsExpected()
{
using SubTreeView control = new();
Assert.Equal(AutoSizeMode.GrowOnly, control.GetAutoSizeMode());
}
public static IEnumerable<object[]> GetNodeAt_Empty_TestData()
{
yield return new object[] { new Point(int.MinValue, int.MinValue) };
yield return new object[] { new Point(-1, -2) };
yield return new object[] { new Point(-1, 0) };
yield return new object[] { new Point(-1, 2) };
yield return new object[] { new Point(0, -2) };
yield return new object[] { new Point(0, 0) };
yield return new object[] { new Point(0, 2) };
yield return new object[] { new Point(1, -2) };
yield return new object[] { new Point(1, 0) };
yield return new object[] { new Point(1, 2) };
yield return new object[] { new Point(int.MaxValue, int.MaxValue) };
}
[WinFormsTheory]
[MemberData(nameof(GetNodeAt_Empty_TestData))]
public void TreeView_GetNodeAt_InvokePointEmpty_ReturnsNull(Point pt)
{
using TreeView control = new();
Assert.Null(control.GetNodeAt(pt));
Assert.True(control.IsHandleCreated);
// Call again.
Assert.Null(control.GetNodeAt(pt));
Assert.True(control.IsHandleCreated);
}
public static IEnumerable<object[]> GetNodeAt_NotEmptyValid_TestData()
{
yield return new object[] { new Point(0, 0) };
yield return new object[] { new Point(20, 0) };
}
[WinFormsTheory]
[MemberData(nameof(GetNodeAt_NotEmptyValid_TestData))]
public void TreeView_GetNodeAt_InvokePointNotEmptyValid_Success(Point pt)
{
using TreeView control = new();
TreeNode node1 = new("Some Long Text");
control.Nodes.Add(node1);
Assert.Same(node1, control.GetNodeAt(pt));
Assert.True(control.IsHandleCreated);
// Call again.
Assert.Same(node1, control.GetNodeAt(pt));
Assert.True(control.IsHandleCreated);
}
public static IEnumerable<object[]> GetNodeAt_NotEmptyInvalid_TestData()
{
yield return new object[] { new Point(int.MinValue, int.MinValue) };
yield return new object[] { new Point(-1, -2) };
yield return new object[] { new Point(-1, 0) };
yield return new object[] { new Point(-1, 2) };
yield return new object[] { new Point(0, -2) };
yield return new object[] { new Point(1, -2) };
yield return new object[] { new Point(int.MaxValue, int.MaxValue) };
}
[WinFormsTheory]
[MemberData(nameof(GetNodeAt_NotEmptyInvalid_TestData))]
public void TreeView_GetNodeAt_InvokePointNotEmptyInvalid_Success(Point pt)
{
using TreeView control = new();
TreeNode node1 = new("Some Long Text");
control.Nodes.Add(node1);
Assert.Null(control.GetNodeAt(pt));
Assert.True(control.IsHandleCreated);
// Call again.
Assert.Null(control.GetNodeAt(pt));
Assert.True(control.IsHandleCreated);
}
[WinFormsTheory]
[MemberData(nameof(GetNodeAt_Empty_TestData))]
public void TreeView_GetNodeAt_InvokePointEmptyWithHandle_Success(Point pt)
{
using TreeView control = new();
Assert.NotEqual(IntPtr.Zero, control.Handle);
int invalidatedCallCount = 0;
control.Invalidated += (sender, e) => invalidatedCallCount++;
int styleChangedCallCount = 0;
control.StyleChanged += (sender, e) => styleChangedCallCount++;
int createdCallCount = 0;
control.HandleCreated += (sender, e) => createdCallCount++;
Assert.Null(control.GetNodeAt(pt));
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
// Call again.
Assert.Null(control.GetNodeAt(pt));
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
[WinFormsTheory]
[MemberData(nameof(GetNodeAt_NotEmptyValid_TestData))]
public void TreeView_GetNodeAt_InvokePointNotEmptyValidWithHandle_Success(Point pt)
{
using TreeView control = new();
TreeNode node1 = new("Some Long Text");
control.Nodes.Add(node1);
Assert.NotEqual(IntPtr.Zero, control.Handle);
int invalidatedCallCount = 0;
control.Invalidated += (sender, e) => invalidatedCallCount++;
int styleChangedCallCount = 0;
control.StyleChanged += (sender, e) => styleChangedCallCount++;
int createdCallCount = 0;
control.HandleCreated += (sender, e) => createdCallCount++;
Assert.Same(node1, control.GetNodeAt(pt));
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
// Call again.
Assert.Same(node1, control.GetNodeAt(pt));
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
[WinFormsTheory]
[MemberData(nameof(GetNodeAt_NotEmptyInvalid_TestData))]
public void TreeView_GetNodeAt_InvokePointNotEmptyInvalidWithHandle_Success(Point pt)
{
using TreeView control = new();
TreeNode node1 = new("Some Long Text");
control.Nodes.Add(node1);
Assert.NotEqual(IntPtr.Zero, control.Handle);
int invalidatedCallCount = 0;
control.Invalidated += (sender, e) => invalidatedCallCount++;
int styleChangedCallCount = 0;
control.StyleChanged += (sender, e) => styleChangedCallCount++;
int createdCallCount = 0;
control.HandleCreated += (sender, e) => createdCallCount++;
Assert.Null(control.GetNodeAt(pt));
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
// Call again.
Assert.Null(control.GetNodeAt(pt));
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
[WinFormsTheory]
[MemberData(nameof(GetNodeAt_Empty_TestData))]
public void TreeView_GetNodeAt_InvokeIntIntEmpty_ReturnsNull(Point pt)
{
using TreeView control = new();
Assert.Null(control.GetNodeAt(pt.X, pt.Y));
Assert.True(control.IsHandleCreated);
// Call again.
Assert.Null(control.GetNodeAt(pt.X, pt.Y));
Assert.True(control.IsHandleCreated);
}
[WinFormsTheory]
[MemberData(nameof(GetNodeAt_NotEmptyValid_TestData))]
public void TreeView_GetNodeAt_InvokeIntIntNotEmptyValid_Success(Point pt)
{
using TreeView control = new();
TreeNode node1 = new("Some Long Text");
control.Nodes.Add(node1);
Assert.Same(node1, control.GetNodeAt(pt.X, pt.Y));
Assert.True(control.IsHandleCreated);
// Call again.
Assert.Same(node1, control.GetNodeAt(pt.X, pt.Y));
Assert.True(control.IsHandleCreated);
}
[WinFormsTheory]
[MemberData(nameof(GetNodeAt_NotEmptyInvalid_TestData))]
public void TreeView_GetNodeAt_InvokeIntIntNotEmptyInvalid_Success(Point pt)
{
using TreeView control = new();
TreeNode node1 = new("Some Long Text");
control.Nodes.Add(node1);
Assert.Null(control.GetNodeAt(pt.X, pt.Y));
Assert.True(control.IsHandleCreated);
// Call again.
Assert.Null(control.GetNodeAt(pt.X, pt.Y));
Assert.True(control.IsHandleCreated);
}
[WinFormsTheory]
[MemberData(nameof(GetNodeAt_Empty_TestData))]
public void TreeView_GetNodeAt_InvokeIntIntEmptyWithHandle_Success(Point pt)
{
using TreeView control = new();
Assert.NotEqual(IntPtr.Zero, control.Handle);
int invalidatedCallCount = 0;
control.Invalidated += (sender, e) => invalidatedCallCount++;
int styleChangedCallCount = 0;
control.StyleChanged += (sender, e) => styleChangedCallCount++;
int createdCallCount = 0;
control.HandleCreated += (sender, e) => createdCallCount++;
Assert.Null(control.GetNodeAt(pt.X, pt.Y));
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
// Call again.
Assert.Null(control.GetNodeAt(pt.X, pt.Y));
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
[WinFormsTheory]
[MemberData(nameof(GetNodeAt_NotEmptyValid_TestData))]
public void TreeView_GetNodeAt_InvokeIntIntNotEmptyValidWithHandle_Success(Point pt)
{
using TreeView control = new();
TreeNode node1 = new("Some Long Text");
control.Nodes.Add(node1);
Assert.NotEqual(IntPtr.Zero, control.Handle);
int invalidatedCallCount = 0;
control.Invalidated += (sender, e) => invalidatedCallCount++;
int styleChangedCallCount = 0;
control.StyleChanged += (sender, e) => styleChangedCallCount++;
int createdCallCount = 0;
control.HandleCreated += (sender, e) => createdCallCount++;
Assert.Same(node1, control.GetNodeAt(pt.X, pt.Y));
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
// Call again.
Assert.Same(node1, control.GetNodeAt(pt.X, pt.Y));
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
[WinFormsTheory]
[MemberData(nameof(GetNodeAt_NotEmptyInvalid_TestData))]
public void TreeView_GetNodeAt_InvokeIntIntNotEmptyInvalidWithHandle_Success(Point pt)
{
using TreeView control = new();
TreeNode node1 = new("Some Long Text");
control.Nodes.Add(node1);
Assert.NotEqual(IntPtr.Zero, control.Handle);
int invalidatedCallCount = 0;
control.Invalidated += (sender, e) => invalidatedCallCount++;
int styleChangedCallCount = 0;
control.StyleChanged += (sender, e) => styleChangedCallCount++;
int createdCallCount = 0;
control.HandleCreated += (sender, e) => createdCallCount++;
Assert.Null(control.GetNodeAt(pt.X, pt.Y));
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
// Call again.
Assert.Null(control.GetNodeAt(pt.X, pt.Y));
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
[WinFormsTheory]
[InlineData(ControlStyles.ContainerControl, false)]
[InlineData(ControlStyles.UserPaint, false)]
[InlineData(ControlStyles.Opaque, false)]
[InlineData(ControlStyles.ResizeRedraw, false)]
[InlineData(ControlStyles.FixedWidth, false)]
[InlineData(ControlStyles.FixedHeight, false)]
[InlineData(ControlStyles.StandardClick, false)]
[InlineData(ControlStyles.Selectable, true)]
[InlineData(ControlStyles.UserMouse, false)]
[InlineData(ControlStyles.SupportsTransparentBackColor, false)]
[InlineData(ControlStyles.StandardDoubleClick, true)]
[InlineData(ControlStyles.AllPaintingInWmPaint, true)]
[InlineData(ControlStyles.CacheText, false)]
[InlineData(ControlStyles.EnableNotifyMessage, false)]
[InlineData(ControlStyles.DoubleBuffer, false)]
[InlineData(ControlStyles.OptimizedDoubleBuffer, false)]
[InlineData(ControlStyles.UseTextForAccessibility, false)]
[InlineData((ControlStyles)0, true)]
[InlineData((ControlStyles)int.MaxValue, false)]
[InlineData((ControlStyles)(-1), false)]
public void TreeView_GetStyle_Invoke_ReturnsExpected(ControlStyles flag, bool expected)
{
using SubTreeView control = new();
Assert.Equal(expected, control.GetStyle(flag));
// Call again to test caching.
Assert.Equal(expected, control.GetStyle(flag));
}
[WinFormsFact]
public void TreeView_GetTopLevel_Invoke_ReturnsExpected()
{
using SubTreeView control = new();
Assert.False(control.GetTopLevel());
}
public static IEnumerable<object[]> HitTest_Empty_TestData()
{
yield return new object[] { new Point(int.MinValue, int.MinValue), TreeViewHitTestLocations.AboveClientArea | TreeViewHitTestLocations.LeftOfClientArea };
yield return new object[] { new Point(-1, -2), TreeViewHitTestLocations.AboveClientArea | TreeViewHitTestLocations.LeftOfClientArea };
yield return new object[] { new Point(-1, 0), TreeViewHitTestLocations.LeftOfClientArea };
yield return new object[] { new Point(-1, 2), TreeViewHitTestLocations.LeftOfClientArea };
yield return new object[] { new Point(0, -2), TreeViewHitTestLocations.AboveClientArea };
yield return new object[] { new Point(0, 0), TreeViewHitTestLocations.None };
yield return new object[] { new Point(0, 2), TreeViewHitTestLocations.None };
yield return new object[] { new Point(1, -2), TreeViewHitTestLocations.AboveClientArea };
yield return new object[] { new Point(1, 0), TreeViewHitTestLocations.None };
yield return new object[] { new Point(1, 2), TreeViewHitTestLocations.None };
yield return new object[] { new Point(int.MaxValue, int.MaxValue), TreeViewHitTestLocations.BelowClientArea | TreeViewHitTestLocations.RightOfClientArea };
}
[WinFormsTheory]
[MemberData(nameof(HitTest_Empty_TestData))]
public void TreeView_HitTest_InvokePointEmpty_Success(Point pt, TreeViewHitTestLocations expectedLocations)
{
using TreeView control = new();
TreeViewHitTestInfo result = control.HitTest(pt);
Assert.Equal(expectedLocations, result.Location);
Assert.Null(result.Node);
Assert.True(control.IsHandleCreated);
// Call again.
result = control.HitTest(pt);
Assert.Equal(expectedLocations, result.Location);
Assert.Null(result.Node);
Assert.True(control.IsHandleCreated);
}
public static IEnumerable<object[]> HitTest_NotEmptyValid_TestData()
{
yield return new object[] { new Point(0, 0), TreeViewHitTestLocations.Indent };
}
[WinFormsTheory]
[MemberData(nameof(HitTest_NotEmptyValid_TestData))]
public void TreeView_HitTest_InvokePointNotEmptyValid_Success(Point pt, TreeViewHitTestLocations expectedLocations)
{
using TreeView control = new();
TreeNode node1 = new("Some Long Text");
control.Nodes.Add(node1);
TreeViewHitTestInfo result = control.HitTest(pt);
Assert.Equal(expectedLocations, result.Location);
Assert.Same(node1, result.Node);
Assert.True(control.IsHandleCreated);
// Call again.
result = control.HitTest(pt);
Assert.Equal(expectedLocations, result.Location);
Assert.Same(node1, result.Node);
Assert.True(control.IsHandleCreated);
}
public static IEnumerable<object[]> HitTest_NotEmptyInvalid_TestData()
{
yield return new object[] { new Point(int.MinValue, int.MinValue), TreeViewHitTestLocations.AboveClientArea | TreeViewHitTestLocations.LeftOfClientArea };
yield return new object[] { new Point(-1, -2), TreeViewHitTestLocations.AboveClientArea | TreeViewHitTestLocations.LeftOfClientArea };
yield return new object[] { new Point(-1, 0), TreeViewHitTestLocations.LeftOfClientArea };
yield return new object[] { new Point(-1, 2), TreeViewHitTestLocations.LeftOfClientArea };
yield return new object[] { new Point(0, -2), TreeViewHitTestLocations.AboveClientArea };
yield return new object[] { new Point(1, -2), TreeViewHitTestLocations.AboveClientArea };
yield return new object[] { new Point(int.MaxValue, int.MaxValue), TreeViewHitTestLocations.BelowClientArea | TreeViewHitTestLocations.RightOfClientArea };
}
[WinFormsTheory]
[MemberData(nameof(HitTest_NotEmptyInvalid_TestData))]
public void TreeView_HitTest_InvokePointNotEmptyInvalid_Success(Point pt, TreeViewHitTestLocations expectedLocations)
{
using TreeView control = new();
TreeNode node1 = new("Some Long Text");
control.Nodes.Add(node1);
TreeViewHitTestInfo result = control.HitTest(pt);
Assert.Equal(expectedLocations, result.Location);
Assert.Null(result.Node);
Assert.True(control.IsHandleCreated);
// Call again.
result = control.HitTest(pt);
Assert.Equal(expectedLocations, result.Location);
Assert.Null(result.Node);
Assert.True(control.IsHandleCreated);
}
[WinFormsTheory]
[MemberData(nameof(HitTest_Empty_TestData))]
public void TreeView_HitTest_InvokePointEmptyWithHandle_Success(Point pt, TreeViewHitTestLocations expectedLocations)
{
using TreeView control = new();
Assert.NotEqual(IntPtr.Zero, control.Handle);
int invalidatedCallCount = 0;
control.Invalidated += (sender, e) => invalidatedCallCount++;
int styleChangedCallCount = 0;
control.StyleChanged += (sender, e) => styleChangedCallCount++;
int createdCallCount = 0;
control.HandleCreated += (sender, e) => createdCallCount++;
TreeViewHitTestInfo result = control.HitTest(pt);
Assert.Equal(expectedLocations, result.Location);
Assert.Null(result.Node);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
// Call again.
result = control.HitTest(pt);
Assert.Equal(expectedLocations, result.Location);
Assert.Null(result.Node);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
[WinFormsTheory]
[MemberData(nameof(HitTest_NotEmptyValid_TestData))]
public void TreeView_HitTest_InvokePointNotEmptyValidWithHandle_Success(Point pt, TreeViewHitTestLocations expectedLocations)
{
using TreeView control = new();
TreeNode node1 = new("Some Long Text");
control.Nodes.Add(node1);
Assert.NotEqual(IntPtr.Zero, control.Handle);
int invalidatedCallCount = 0;
control.Invalidated += (sender, e) => invalidatedCallCount++;
int styleChangedCallCount = 0;
control.StyleChanged += (sender, e) => styleChangedCallCount++;
int createdCallCount = 0;
control.HandleCreated += (sender, e) => createdCallCount++;
TreeViewHitTestInfo result = control.HitTest(pt);
Assert.Equal(expectedLocations, result.Location);
Assert.Same(node1, result.Node);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
// Call again.
result = control.HitTest(pt);
Assert.Equal(expectedLocations, result.Location);
Assert.Same(node1, result.Node);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
[WinFormsTheory]
[MemberData(nameof(HitTest_NotEmptyInvalid_TestData))]
public void TreeView_HitTest_InvokePointNotEmptyInvalidWithHandle_Success(Point pt, TreeViewHitTestLocations expectedLocations)
{
using TreeView control = new();
TreeNode node1 = new("Some Long Text");
control.Nodes.Add(node1);
Assert.NotEqual(IntPtr.Zero, control.Handle);
int invalidatedCallCount = 0;
control.Invalidated += (sender, e) => invalidatedCallCount++;
int styleChangedCallCount = 0;
control.StyleChanged += (sender, e) => styleChangedCallCount++;
int createdCallCount = 0;
control.HandleCreated += (sender, e) => createdCallCount++;
TreeViewHitTestInfo result = control.HitTest(pt);
Assert.Equal(expectedLocations, result.Location);
Assert.Null(result.Node);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
// Call again.
result = control.HitTest(pt);
Assert.Equal(expectedLocations, result.Location);
Assert.Null(result.Node);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
[WinFormsTheory]
[MemberData(nameof(HitTest_Empty_TestData))]
public void TreeView_HitTest_InvokeIntIntEmpty_Success(Point pt, TreeViewHitTestLocations expectedLocations)
{
using TreeView control = new();
TreeViewHitTestInfo result = control.HitTest(pt.X, pt.Y);
Assert.Equal(expectedLocations, result.Location);
Assert.Null(result.Node);
Assert.True(control.IsHandleCreated);
// Call again.
result = control.HitTest(pt.X, pt.Y);
Assert.Equal(expectedLocations, result.Location);
Assert.Null(result.Node);
Assert.True(control.IsHandleCreated);
}
[WinFormsTheory]
[MemberData(nameof(HitTest_NotEmptyValid_TestData))]
public void TreeView_HitTest_InvokeIntIntNotEmptyValid_Success(Point pt, TreeViewHitTestLocations expectedLocations)
{
using TreeView control = new();
TreeNode node1 = new("Some Long Text");
control.Nodes.Add(node1);
TreeViewHitTestInfo result = control.HitTest(pt.X, pt.Y);
Assert.Equal(expectedLocations, result.Location);
Assert.Same(node1, result.Node);
Assert.True(control.IsHandleCreated);
// Call again.
result = control.HitTest(pt.X, pt.Y);
Assert.Equal(expectedLocations, result.Location);
Assert.Same(node1, result.Node);
Assert.True(control.IsHandleCreated);
}
[WinFormsTheory]
[MemberData(nameof(HitTest_NotEmptyInvalid_TestData))]
public void TreeView_HitTest_InvokeIntIntNotEmptyInvalid_Success(Point pt, TreeViewHitTestLocations expectedLocations)
{
using TreeView control = new();
TreeNode node1 = new("Some Long Text");
control.Nodes.Add(node1);
TreeViewHitTestInfo result = control.HitTest(pt.X, pt.Y);
Assert.Equal(expectedLocations, result.Location);
Assert.Null(result.Node);
Assert.True(control.IsHandleCreated);
// Call again.
result = control.HitTest(pt.X, pt.Y);
Assert.Equal(expectedLocations, result.Location);
Assert.Null(result.Node);
Assert.True(control.IsHandleCreated);
}
[WinFormsTheory]
[MemberData(nameof(HitTest_Empty_TestData))]
public void TreeView_HitTest_InvokeIntIntEmptyWithHandle_Success(Point pt, TreeViewHitTestLocations expectedLocations)
{
using TreeView control = new();
Assert.NotEqual(IntPtr.Zero, control.Handle);
int invalidatedCallCount = 0;
control.Invalidated += (sender, e) => invalidatedCallCount++;
int styleChangedCallCount = 0;
control.StyleChanged += (sender, e) => styleChangedCallCount++;
int createdCallCount = 0;
control.HandleCreated += (sender, e) => createdCallCount++;
TreeViewHitTestInfo result = control.HitTest(pt.X, pt.Y);
Assert.Equal(expectedLocations, result.Location);
Assert.Null(result.Node);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
// Call again.
result = control.HitTest(pt.X, pt.Y);
Assert.Equal(expectedLocations, result.Location);
Assert.Null(result.Node);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
[WinFormsTheory]
[MemberData(nameof(HitTest_NotEmptyValid_TestData))]
public void TreeView_HitTest_InvokeIntIntNotEmptyValidWithHandle_Success(Point pt, TreeViewHitTestLocations expectedLocations)
{
using TreeView control = new();
TreeNode node1 = new("Some Long Text");
control.Nodes.Add(node1);
Assert.NotEqual(IntPtr.Zero, control.Handle);
int invalidatedCallCount = 0;
control.Invalidated += (sender, e) => invalidatedCallCount++;
int styleChangedCallCount = 0;
control.StyleChanged += (sender, e) => styleChangedCallCount++;
int createdCallCount = 0;
control.HandleCreated += (sender, e) => createdCallCount++;
TreeViewHitTestInfo result = control.HitTest(pt.X, pt.Y);
Assert.Equal(expectedLocations, result.Location);
Assert.Same(node1, result.Node);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
// Call again.
result = control.HitTest(pt.X, pt.Y);
Assert.Equal(expectedLocations, result.Location);
Assert.Same(node1, result.Node);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
[WinFormsTheory]
[MemberData(nameof(HitTest_NotEmptyInvalid_TestData))]
public void TreeView_HitTest_InvokeIntIntNotEmptyInvalidWithHandle_Success(Point pt, TreeViewHitTestLocations expectedLocations)
{
using TreeView control = new();
TreeNode node1 = new("Some Long Text");
control.Nodes.Add(node1);
Assert.NotEqual(IntPtr.Zero, control.Handle);
int invalidatedCallCount = 0;
control.Invalidated += (sender, e) => invalidatedCallCount++;
int styleChangedCallCount = 0;
control.StyleChanged += (sender, e) => styleChangedCallCount++;
int createdCallCount = 0;
control.HandleCreated += (sender, e) => createdCallCount++;
TreeViewHitTestInfo result = control.HitTest(pt.X, pt.Y);
Assert.Equal(expectedLocations, result.Location);
Assert.Null(result.Node);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
// Call again.
result = control.HitTest(pt.X, pt.Y);
Assert.Equal(expectedLocations, result.Location);
Assert.Null(result.Node);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
public static IEnumerable<object[]> TreeViewEventArgs_TestData()
{
yield return new object[] { new TreeViewEventArgs(null) };
yield return new object[] { new TreeViewEventArgs(new TreeNode()) };
yield return new object[] { new TreeViewEventArgs(new TreeNode(), TreeViewAction.ByMouse) };
}
[WinFormsTheory]
[MemberData(nameof(TreeViewEventArgs_TestData))]
public void TreeView_OnAfterCheck_Invoke_CallsAfterCheck(TreeViewEventArgs eventArgs)
{
using SubTreeView control = new();
int callCount = 0;
TreeViewEventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
Assert.NotNull(control.AccessibilityObject);
// Call with handler.
control.AfterCheck += handler;
control.OnAfterCheck(eventArgs);
Assert.Equal(1, callCount);
// Remove handler.
control.AfterCheck -= handler;
control.OnAfterCheck(eventArgs);
Assert.Equal(1, callCount);
}
[WinFormsTheory]
[MemberData(nameof(TreeViewEventArgs_TestData))]
public void TreeView_OnAfterCollapse_Invoke_CallsAfterCollapse(TreeViewEventArgs eventArgs)
{
using SubTreeView control = new();
int callCount = 0;
TreeViewEventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
Assert.NotNull(control.AccessibilityObject);
// Call with handler.
control.AfterCollapse += handler;
control.OnAfterCollapse(eventArgs);
Assert.Equal(1, callCount);
// Remove handler.
control.AfterCollapse -= handler;
control.OnAfterCollapse(eventArgs);
Assert.Equal(1, callCount);
}
[WinFormsTheory]
[MemberData(nameof(TreeViewEventArgs_TestData))]
public void TreeView_OnAfterExpand_Invoke_CallsAfterExpand(TreeViewEventArgs eventArgs)
{
using SubTreeView control = new();
int callCount = 0;
TreeViewEventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
Assert.NotNull(control.AccessibilityObject);
// Call with handler.
control.AfterExpand += handler;
control.OnAfterExpand(eventArgs);
Assert.Equal(1, callCount);
// Remove handler.
control.AfterExpand -= handler;
control.OnAfterExpand(eventArgs);
Assert.Equal(1, callCount);
}
public static IEnumerable<object[]> NodeLabelEditEventArgs_TestData()
{
yield return new object[] { new NodeLabelEditEventArgs(null) };
yield return new object[] { new NodeLabelEditEventArgs(new TreeNode()) };
yield return new object[] { new NodeLabelEditEventArgs(new TreeNode(), "label") };
}
[WinFormsTheory]
[MemberData(nameof(NodeLabelEditEventArgs_TestData))]
public void TreeView_OnAfterLabelEdit_Invoke_CallsAfterLabelEdit(NodeLabelEditEventArgs eventArgs)
{
using SubTreeView control = new();
int callCount = 0;
NodeLabelEditEventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
Assert.NotNull(control.AccessibilityObject);
// Call with handler.
control.AfterLabelEdit += handler;
control.OnAfterLabelEdit(eventArgs);
Assert.Equal(1, callCount);
// Remove handler.
control.AfterLabelEdit -= handler;
control.OnAfterLabelEdit(eventArgs);
Assert.Equal(1, callCount);
}
[WinFormsTheory]
[MemberData(nameof(TreeViewEventArgs_TestData))]
public void TreeView_OnAfterSelect_Invoke_CallsOnAfterSelect(TreeViewEventArgs eventArgs)
{
using SubTreeView control = new();
int callCount = 0;
TreeViewEventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
Assert.NotNull(control.AccessibilityObject);
// Call with handler.
control.AfterSelect += handler;
control.OnAfterSelect(eventArgs);
Assert.Equal(1, callCount);
// Remove handler.
control.AfterSelect -= handler;
control.OnAfterSelect(eventArgs);
Assert.Equal(1, callCount);
}
public static IEnumerable<object[]> TreeViewCancelEventArgs_TestData()
{
yield return new object[] { null };
yield return new object[] { new TreeViewCancelEventArgs(null, false, TreeViewAction.ByKeyboard) };
yield return new object[] { new TreeViewCancelEventArgs(new TreeNode(), true, TreeViewAction.ByKeyboard) };
}
[WinFormsTheory]
[MemberData(nameof(TreeViewCancelEventArgs_TestData))]
public void TreeView_OnBeforeExpand_Invoke_CallsBeforeExpand(TreeViewCancelEventArgs eventArgs)
{
using SubTreeView control = new();
int callCount = 0;
TreeViewCancelEventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.BeforeExpand += handler;
control.OnBeforeExpand(eventArgs);
Assert.Equal(1, callCount);
// Remove handler.
control.BeforeExpand -= handler;
control.OnBeforeExpand(eventArgs);
Assert.Equal(1, callCount);
}
[WinFormsTheory]
[MemberData(nameof(NodeLabelEditEventArgs_TestData))]
public void TreeView_OnBeforeLabelEdit_Invoke_CallsBeforeLabelEdit(NodeLabelEditEventArgs eventArgs)
{
using SubTreeView control = new();
int callCount = 0;
NodeLabelEditEventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.BeforeLabelEdit += handler;
control.OnBeforeLabelEdit(eventArgs);
Assert.Equal(1, callCount);
// Remove handler.
control.BeforeLabelEdit -= handler;
control.OnBeforeLabelEdit(eventArgs);
Assert.Equal(1, callCount);
}
[WinFormsTheory]
[MemberData(nameof(TreeViewCancelEventArgs_TestData))]
public void TreeView_OnBeforeCollapse_Invoke_CallsBeforeCollapse(TreeViewCancelEventArgs eventArgs)
{
using SubTreeView control = new();
int callCount = 0;
TreeViewCancelEventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.BeforeCollapse += handler;
control.OnBeforeCollapse(eventArgs);
Assert.Equal(1, callCount);
// Remove handler.
control.BeforeCollapse -= handler;
control.OnBeforeCollapse(eventArgs);
Assert.Equal(1, callCount);
}
[WinFormsTheory]
[MemberData(nameof(TreeViewCancelEventArgs_TestData))]
public void TreeView_OnBeforeSelect_Invoke_CallsBeforeSelect(TreeViewCancelEventArgs eventArgs)
{
using SubTreeView control = new();
int callCount = 0;
TreeViewCancelEventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.BeforeSelect += handler;
control.OnBeforeSelect(eventArgs);
Assert.Equal(1, callCount);
// Remove handler.
control.BeforeSelect -= handler;
control.OnBeforeSelect(eventArgs);
Assert.Equal(1, callCount);
}
public static IEnumerable<object[]> OnDrawNode_TestData()
{
yield return new object[] { null };
Bitmap image = new(10, 10);
Graphics graphics = Graphics.FromImage(image);
yield return new object[] { new DrawTreeNodeEventArgs(graphics, null, Rectangle.Empty, TreeNodeStates.Checked) };
yield return new object[] { new DrawTreeNodeEventArgs(graphics, new TreeNode(), new Rectangle(1, 2, 3, 4), TreeNodeStates.Checked) };
}
[WinFormsTheory]
[MemberData(nameof(OnDrawNode_TestData))]
public void TreeView_OnDrawNode_Invoke_CallsDrawNode(DrawTreeNodeEventArgs eventArgs)
{
using SubTreeView control = new();
int callCount = 0;
DrawTreeNodeEventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.DrawNode += handler;
control.OnDrawNode(eventArgs);
Assert.Equal(1, callCount);
// Remove handler.
control.DrawNode -= handler;
control.OnDrawNode(eventArgs);
Assert.Equal(1, callCount);
}
public static IEnumerable<object[]> OnItemDrag_TestData()
{
yield return new object[] { null };
yield return new object[] { new ItemDragEventArgs(MouseButtons.None) };
yield return new object[] { new ItemDragEventArgs(MouseButtons.Right, new object()) };
}
[WinFormsTheory]
[MemberData(nameof(OnItemDrag_TestData))]
public void TreeView_OnItemDrag_Invoke_CallsItemDrag(ItemDragEventArgs eventArgs)
{
using SubTreeView control = new();
int callCount = 0;
ItemDragEventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.ItemDrag += handler;
control.OnItemDrag(eventArgs);
Assert.Equal(1, callCount);
// Remove handler.
control.ItemDrag -= handler;
control.OnItemDrag(eventArgs);
Assert.Equal(1, callCount);
}
public static IEnumerable<object[]> OnKeyDown_TestData()
{
yield return new object[] { new KeyEventArgs(Keys.None) };
yield return new object[] { new KeyEventArgs(Keys.A) };
yield return new object[] { new KeyEventArgs(Keys.Space) };
yield return new object[] { new KeyEventArgs(Keys.Control | Keys.Space) };
}
[WinFormsTheory]
[MemberData(nameof(OnKeyDown_TestData))]
public void TreeView_OnKeyDown_Invoke_CallsKeyDown(KeyEventArgs eventArgs)
{
using SubTreeView control = new();
int callCount = 0;
KeyEventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.KeyDown += handler;
control.OnKeyDown(eventArgs);
Assert.Equal(1, callCount);
// Remove handler.
control.KeyDown -= handler;
control.OnKeyDown(eventArgs);
Assert.Equal(1, callCount);
}
public static IEnumerable<object[]> OnKeyDown_WithSelectedNode_TestData()
{
yield return new object[] { false, true, false, new KeyEventArgs(Keys.None), 0, 0, false };
yield return new object[] { false, true, false, new KeyEventArgs(Keys.A), 0, 0, false };
yield return new object[] { false, true, false, new KeyEventArgs(Keys.Space), 1, 1, true };
yield return new object[] { false, true, true, new KeyEventArgs(Keys.Space), 1, 0, true };
yield return new object[] { false, true, false, new KeyEventArgs(Keys.Control | Keys.Space), 1, 1, true };
yield return new object[] { false, true, true, new KeyEventArgs(Keys.Control | Keys.Space), 1, 0, true };
yield return new object[] { true, true, false, new KeyEventArgs(Keys.Space), 0, 0, true };
yield return new object[] { true, false, false, new KeyEventArgs(Keys.Space), 0, 0, true };
yield return new object[] { false, false, false, new KeyEventArgs(Keys.Space), 0, 0, false };
}
[WinFormsTheory]
[MemberData(nameof(OnKeyDown_WithSelectedNode_TestData))]
public void TreeView_OnKeyDown_InvokeWithSelectedNode_CallsKeyDown(bool handled, bool checkBoxes, bool cancel, KeyEventArgs eventArgs, int expectedBeforeCheckCallCount, int expectedAfterCheckCallCount, bool expectedHandled)
{
using SubTreeView control = new()
{
CheckBoxes = checkBoxes
};
TreeNode node = new();
control.Nodes.Add(node);
control.SelectedNode = node;
int callCount = 0;
KeyEventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
e.Handled = handled;
};
int beforeCheckCallCount = 0;
TreeViewCancelEventHandler beforeCheckHandler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Equal(TreeViewAction.ByKeyboard, e.Action);
Assert.False(e.Cancel);
beforeCheckCallCount++;
e.Cancel = cancel;
};
int afterCheckCallCount = 0;
TreeViewEventHandler afterCheckHandler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Equal(TreeViewAction.ByKeyboard, e.Action);
afterCheckCallCount++;
};
// Call with handler.
control.KeyDown += handler;
control.BeforeCheck += beforeCheckHandler;
control.AfterCheck += afterCheckHandler;
control.OnKeyDown(eventArgs);
Assert.Equal(1, callCount);
Assert.Equal(expectedAfterCheckCallCount == 1, node.Checked);
Assert.Equal(expectedHandled, eventArgs.Handled);
Assert.Equal(expectedBeforeCheckCallCount, beforeCheckCallCount);
Assert.Equal(expectedAfterCheckCallCount, afterCheckCallCount);
// Call again.
control.OnKeyDown(eventArgs);
Assert.Equal(2, callCount);
Assert.False(node.Checked);
Assert.Equal(expectedHandled, eventArgs.Handled);
Assert.Equal(expectedBeforeCheckCallCount * 2, beforeCheckCallCount);
Assert.Equal(expectedAfterCheckCallCount * 2, afterCheckCallCount);
// Remove handler.
control.KeyDown -= handler;
control.BeforeCheck -= beforeCheckHandler;
control.AfterCheck -= afterCheckHandler;
control.OnKeyDown(eventArgs);
Assert.Equal(2, callCount);
Assert.Equal(expectedHandled, eventArgs.Handled);
Assert.Equal(expectedBeforeCheckCallCount * 2, beforeCheckCallCount);
Assert.Equal(expectedAfterCheckCallCount * 2, afterCheckCallCount);
}
[WinFormsFact]
public void TreeView_OnKeyDown_NullEventArgs_ThrowsNullReferenceException()
{
using SubTreeView control = new();
Assert.Throws<NullReferenceException>(() => control.OnKeyDown(null));
}
public static IEnumerable<object[]> OnKeyPress_TestData()
{
yield return new object[] { true, new KeyPressEventArgs('\0'), true };
yield return new object[] { true, new KeyPressEventArgs('a'), true };
yield return new object[] { true, new KeyPressEventArgs(' '), true };
yield return new object[] { false, new KeyPressEventArgs('\0'), false };
yield return new object[] { false, new KeyPressEventArgs('a'), false };
yield return new object[] { false, new KeyPressEventArgs(' '), true };
}
[WinFormsTheory]
[MemberData(nameof(OnKeyPress_TestData))]
public void TreeView_OnKeyPress_Invoke_CallsKeyPress(bool handled, KeyPressEventArgs eventArgs, bool expectedHandled)
{
using SubTreeView control = new();
int callCount = 0;
KeyPressEventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
e.Handled = handled;
callCount++;
};
// Call with handler.
control.KeyPress += handler;
control.OnKeyPress(eventArgs);
Assert.Equal(1, callCount);
Assert.Equal(expectedHandled, eventArgs.Handled);
// Remove handler.
control.KeyPress -= handler;
control.OnKeyPress(eventArgs);
Assert.Equal(1, callCount);
Assert.Equal(expectedHandled, eventArgs.Handled);
}
[WinFormsFact]
public void TreeView_OnKeyPress_NullEventArgs_ThrowsNullReferenceException()
{
using SubTreeView control = new();
Assert.Throws<NullReferenceException>(() => control.OnKeyPress(null));
}
public static IEnumerable<object[]> OnKeyUp_TestData()
{
yield return new object[] { true, new KeyEventArgs(Keys.None), true };
yield return new object[] { true, new KeyEventArgs(Keys.A), true };
yield return new object[] { true, new KeyEventArgs(Keys.Space), true };
yield return new object[] { true, new KeyEventArgs(Keys.Control | Keys.Space), true };
yield return new object[] { false, new KeyEventArgs(Keys.None), false };
yield return new object[] { false, new KeyEventArgs(Keys.A), false };
yield return new object[] { false, new KeyEventArgs(Keys.Space), true };
yield return new object[] { false, new KeyEventArgs(Keys.Control | Keys.Space), true };
}
[WinFormsTheory]
[MemberData(nameof(OnKeyUp_TestData))]
public void TreeView_OnKeyUp_Invoke_CallsKeyUp(bool handled, KeyEventArgs eventArgs, bool expectedHandled)
{
using SubTreeView control = new();
int callCount = 0;
KeyEventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
e.Handled = handled;
callCount++;
};
// Call with handler.
control.KeyUp += handler;
control.OnKeyUp(eventArgs);
Assert.Equal(1, callCount);
Assert.Equal(expectedHandled, eventArgs.Handled);
// Remove handler.
control.KeyUp -= handler;
control.OnKeyUp(eventArgs);
Assert.Equal(1, callCount);
Assert.Equal(expectedHandled, eventArgs.Handled);
}
[WinFormsFact]
public void TreeView_OnKeyUp_NullEventArgs_ThrowsNullReferenceException()
{
using SubTreeView control = new();
Assert.Throws<NullReferenceException>(() => control.OnKeyUp(null));
}
/*
[WinFormsTheory]
[NewAndDefaultData<EventArgs>]
public void TreeView_OnHandleCreated_Invoke_CallsHandleCreated(EventArgs eventArgs)
{
using SubTreeView control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
//Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.HandleCreated += handler;
control.OnHandleCreated(eventArgs);
Assert.Equal(1, callCount);
Assert.False(control.Created);
Assert.False(control.IsHandleCreated);
// Remove handler.
control.HandleCreated -= handler;
control.OnHandleCreated(eventArgs);
Assert.Equal(1, callCount);
Assert.False(control.Created);
Assert.False(control.IsHandleCreated);
}
*/
[WinFormsTheory]
[NewAndDefaultData<EventArgs>]
public void TreeView_OnHandleCreated_InvokeWithHandle_CallsHandleCreated(EventArgs eventArgs)
{
using SubTreeView control = new();
Assert.NotEqual(IntPtr.Zero, control.Handle);
Assert.False(control.GetStyle(ControlStyles.UserPaint));
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.HandleCreated += handler;
control.OnHandleCreated(eventArgs);
Assert.Equal(1, callCount);
Assert.True(control.Created);
Assert.True(control.IsHandleCreated);
// Remove handler.
control.HandleCreated -= handler;
control.OnHandleCreated(eventArgs);
Assert.Equal(1, callCount);
Assert.True(control.Created);
Assert.True(control.IsHandleCreated);
}
public static IEnumerable<object[]> OnHandleCreated_WithHandleWithProperties_TestData()
{
yield return new object[] { Array.Empty<Image>(), null, false };
yield return new object[] { new Image[] { new Bitmap(10, 10) }, null, true };
yield return new object[] { Array.Empty<Image>(), new EventArgs(), false };
yield return new object[] { new Image[] { new Bitmap(10, 10) }, new EventArgs(), true };
}
[WinFormsTheory]
[MemberData(nameof(OnHandleCreated_WithHandleWithProperties_TestData))]
public void TreeView_OnHandleCreated_InvokeWithHandleWithProperties_CallsHandleCreated(Image[] images, EventArgs eventArgs, bool expectedStateImageListHandleCreated)
{
using ImageList imageList = new();
using ImageList stateImageList = new();
stateImageList.Images.AddRange(images);
using SubTreeView control = new()
{
CheckBoxes = true,
ShowNodeToolTips = true,
BackColor = Color.Red,
ForeColor = Color.Blue,
LineColor = Color.Yellow,
ImageList = imageList,
StateImageList = stateImageList,
Indent = 10,
ItemHeight = 11
};
TreeNode node = new();
control.Nodes.Add(node);
control.SelectedNode = node;
Assert.NotEqual(IntPtr.Zero, control.Handle);
Assert.False(control.GetStyle(ControlStyles.UserPaint));
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.HandleCreated += handler;
control.OnHandleCreated(eventArgs);
Assert.Equal(1, callCount);
Assert.True(control.CheckBoxes);
Assert.True(control.ShowNodeToolTips);
Assert.Equal(Color.Red, control.BackColor);
Assert.Equal(Color.Blue, control.ForeColor);
Assert.Equal(Color.Yellow, control.LineColor);
Assert.Same(imageList, control.ImageList);
Assert.True(control.ImageList.HandleCreated);
Assert.Same(stateImageList, control.StateImageList);
Assert.Equal(expectedStateImageListHandleCreated, control.StateImageList.HandleCreated);
Assert.Equal(10, control.Indent);
Assert.Equal(11, control.ItemHeight);
Assert.True(control.Created);
Assert.True(control.IsHandleCreated);
// Remove handler.
control.HandleCreated -= handler;
control.OnHandleCreated(eventArgs);
Assert.Equal(1, callCount);
Assert.True(control.CheckBoxes);
Assert.True(control.ShowNodeToolTips);
Assert.Equal(Color.Red, control.BackColor);
Assert.Equal(Color.Blue, control.ForeColor);
Assert.Equal(Color.Yellow, control.LineColor);
Assert.Same(imageList, control.ImageList);
Assert.True(control.ImageList.HandleCreated);
Assert.Same(stateImageList, control.StateImageList);
Assert.Equal(expectedStateImageListHandleCreated, control.StateImageList.HandleCreated);
Assert.Equal(10, control.Indent);
Assert.Equal(11, control.ItemHeight);
Assert.True(control.Created);
Assert.True(control.IsHandleCreated);
}
[WinFormsTheory]
[MemberData(nameof(OnHandleCreated_WithHandleWithProperties_TestData))]
public void TreeView_OnHandleCreated_InvokeWithHandleWithPropertiesDesignMode_CallsHandleCreated(Image[] images, EventArgs eventArgs, bool expectedStateImageListHandleCreated)
{
using ImageList imageList = new();
using ImageList stateImageList = new();
stateImageList.Images.AddRange(images);
Mock<ISite> mockSite = new(MockBehavior.Strict);
mockSite
.Setup(s => s.GetService(typeof(AmbientProperties)))
.Returns(null);
mockSite
.Setup(s => s.Container)
.Returns((IContainer)null);
mockSite
.Setup(s => s.DesignMode)
.Returns(true);
using SubTreeView control = new()
{
CheckBoxes = true,
ShowNodeToolTips = true,
BackColor = Color.Red,
ForeColor = Color.Blue,
LineColor = Color.Yellow,
ImageList = imageList,
StateImageList = stateImageList,
Indent = 10,
ItemHeight = 11,
Site = mockSite.Object
};
TreeNode node = new();
control.Nodes.Add(node);
control.SelectedNode = node;
Assert.NotEqual(IntPtr.Zero, control.Handle);
Assert.False(control.GetStyle(ControlStyles.UserPaint));
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.HandleCreated += handler;
control.OnHandleCreated(eventArgs);
Assert.Equal(1, callCount);
Assert.True(control.CheckBoxes);
Assert.True(control.ShowNodeToolTips);
Assert.Equal(Color.Red, control.BackColor);
Assert.Equal(Color.Blue, control.ForeColor);
Assert.Equal(Color.Yellow, control.LineColor);
Assert.Same(imageList, control.ImageList);
Assert.True(control.ImageList.HandleCreated);
Assert.Same(stateImageList, control.StateImageList);
Assert.Equal(expectedStateImageListHandleCreated, control.StateImageList.HandleCreated);
Assert.Equal(10, control.Indent);
Assert.Equal(11, control.ItemHeight);
Assert.True(control.Created);
Assert.True(control.IsHandleCreated);
// Remove handler.
control.HandleCreated -= handler;
control.OnHandleCreated(eventArgs);
Assert.Equal(1, callCount);
Assert.True(control.CheckBoxes);
Assert.True(control.ShowNodeToolTips);
Assert.Equal(Color.Red, control.BackColor);
Assert.Equal(Color.Blue, control.ForeColor);
Assert.Equal(Color.Yellow, control.LineColor);
Assert.Same(imageList, control.ImageList);
Assert.True(control.ImageList.HandleCreated);
Assert.Same(stateImageList, control.StateImageList);
Assert.Equal(expectedStateImageListHandleCreated, control.StateImageList.HandleCreated);
Assert.Equal(10, control.Indent);
Assert.Equal(11, control.ItemHeight);
Assert.True(control.Created);
Assert.True(control.IsHandleCreated);
}
[WinFormsTheory]
[NewAndDefaultData<EventArgs>]
public void TreeView_OnHandleDestroyed_Invoke_CallsHandleDestroyed(EventArgs eventArgs)
{
using SubTreeView control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.HandleDestroyed += handler;
control.OnHandleDestroyed(eventArgs);
Assert.Equal(1, callCount);
Assert.True(control.Created);
Assert.True(control.IsHandleCreated);
// Remove handler.
control.HandleDestroyed -= handler;
control.OnHandleDestroyed(eventArgs);
Assert.Equal(1, callCount);
Assert.True(control.Created);
Assert.True(control.IsHandleCreated);
}
[WinFormsTheory]
[NewAndDefaultData<EventArgs>]
public void TreeView_OnHandleDestroyed_InvokeWithHandle_CallsHandleDestroyed(EventArgs eventArgs)
{
using SubTreeView control = new();
Assert.NotEqual(IntPtr.Zero, control.Handle);
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.HandleDestroyed += handler;
control.OnHandleDestroyed(eventArgs);
Assert.Equal(1, callCount);
Assert.True(control.Created);
Assert.True(control.IsHandleCreated);
// Remove handler.
control.HandleDestroyed -= handler;
control.OnHandleDestroyed(eventArgs);
Assert.Equal(1, callCount);
Assert.True(control.Created);
Assert.True(control.IsHandleCreated);
}
[WinFormsTheory]
[NewAndDefaultData<EventArgs>]
public void TreeView_OnHandleDestroyed_InvokeWithHandleWithSelectedNode_CallsHandleDestroyed(EventArgs eventArgs)
{
using SubTreeView control = new();
TreeNode node = new();
control.Nodes.Add(node);
Assert.NotEqual(IntPtr.Zero, control.Handle);
control.SelectedNode = node;
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.HandleDestroyed += handler;
control.OnHandleDestroyed(eventArgs);
Assert.Equal(1, callCount);
Assert.Same(node, control.SelectedNode);
Assert.True(control.Created);
Assert.True(control.IsHandleCreated);
// Remove handler.
control.HandleDestroyed -= handler;
control.OnHandleDestroyed(eventArgs);
Assert.Equal(1, callCount);
Assert.Same(node, control.SelectedNode);
Assert.True(control.Created);
Assert.True(control.IsHandleCreated);
}
[WinFormsTheory]
[NewAndDefaultData<EventArgs>]
public void TreeView_OnHandleDestroyed_InvokeWithHandleWithStateImageList_CallsHandleDestroyed(EventArgs eventArgs)
{
using ImageList imageList = new();
Assert.NotEqual(IntPtr.Zero, imageList.Handle);
using SubTreeView control = new()
{
StateImageList = imageList
};
Assert.NotEqual(IntPtr.Zero, control.Handle);
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
// Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.HandleDestroyed += handler;
control.OnHandleDestroyed(eventArgs);
Assert.Equal(1, callCount);
Assert.Same(imageList, control.StateImageList);
Assert.True(control.Created);
Assert.True(control.IsHandleCreated);
// Remove handler.
control.HandleDestroyed -= handler;
control.OnHandleDestroyed(eventArgs);
Assert.Equal(1, callCount);
Assert.Same(imageList, control.StateImageList);
Assert.True(control.Created);
Assert.True(control.IsHandleCreated);
}
[WinFormsTheory]
[NewAndDefaultData<EventArgs>]
public void TreeView_OnMouseHover_Invoke_CallsMouseHover(EventArgs eventArgs)
{
using SubTreeView control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
int nodeCallCount = 0;
control.NodeMouseHover += (sender, e) => nodeCallCount++;
// Call with handler.
control.MouseHover += handler;
control.OnMouseHover(eventArgs);
Assert.Equal(1, callCount);
Assert.Equal(0, nodeCallCount);
Assert.True(control.IsHandleCreated);
// Call again.
control.OnMouseHover(eventArgs);
Assert.Equal(1, callCount);
Assert.Equal(0, nodeCallCount);
Assert.True(control.IsHandleCreated);
// Call leave.
control.OnMouseLeave(null);
control.OnMouseHover(eventArgs);
Assert.Equal(2, callCount);
Assert.Equal(0, nodeCallCount);
Assert.True(control.IsHandleCreated);
// Remove handler.
control.MouseHover -= handler;
control.OnMouseHover(eventArgs);
Assert.Equal(2, callCount);
Assert.Equal(0, nodeCallCount);
Assert.True(control.IsHandleCreated);
}
[WinFormsTheory]
[NewAndDefaultData<EventArgs>]
public void TreeView_OnMouseHover_InvokeWithHandle_CallsMouseHover(EventArgs eventArgs)
{
using SubTreeView control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
int nodeCallCount = 0;
control.NodeMouseHover += (sender, e) => nodeCallCount++;
Assert.NotEqual(IntPtr.Zero, control.Handle);
int invalidatedCallCount = 0;
control.Invalidated += (sender, e) => invalidatedCallCount++;
int styleChangedCallCount = 0;
control.StyleChanged += (sender, e) => styleChangedCallCount++;
int createdCallCount = 0;
control.HandleCreated += (sender, e) => createdCallCount++;
// Call with handler.
control.MouseHover += handler;
control.OnMouseHover(eventArgs);
Assert.Equal(1, callCount);
Assert.Equal(0, nodeCallCount);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
// Call again.
control.OnMouseHover(eventArgs);
Assert.Equal(1, callCount);
Assert.Equal(0, nodeCallCount);
Assert.True(control.IsHandleCreated);
// Call leave.
control.OnMouseLeave(null);
control.OnMouseHover(eventArgs);
Assert.Equal(2, callCount);
Assert.Equal(0, nodeCallCount);
Assert.True(control.IsHandleCreated);
// Remove handler.
control.MouseHover -= handler;
control.OnMouseHover(eventArgs);
Assert.Equal(2, callCount);
Assert.Equal(0, nodeCallCount);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
[WinFormsTheory]
[NewAndDefaultData<EventArgs>]
public void TreeView_OnMouseLeave_Invoke_CallsMouseLeave(EventArgs eventArgs)
{
using SubTreeView control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.MouseLeave += handler;
control.OnMouseLeave(eventArgs);
Assert.Equal(1, callCount);
// Remove handler.
control.MouseLeave -= handler;
control.OnMouseLeave(eventArgs);
Assert.Equal(1, callCount);
}
public static IEnumerable<object[]> TreeNodeMouseClickEventArgs_TestData()
{
yield return new object[] { null };
yield return new object[] { new TreeNodeMouseClickEventArgs(null, MouseButtons.None, 0, 0, 0) };
yield return new object[] { new TreeNodeMouseClickEventArgs(new TreeNode(), MouseButtons.Right, 1, 2, 3) };
}
[WinFormsTheory]
[MemberData(nameof(TreeNodeMouseClickEventArgs_TestData))]
public void TreeView_OnNodeMouseClick_Invoke_CallsNodeMouseClick(TreeNodeMouseClickEventArgs eventArgs)
{
using SubTreeView control = new();
int callCount = 0;
TreeNodeMouseClickEventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.NodeMouseClick += handler;
control.OnNodeMouseClick(eventArgs);
Assert.Equal(1, callCount);
// Remove handler.
control.NodeMouseClick -= handler;
control.OnNodeMouseClick(eventArgs);
Assert.Equal(1, callCount);
}
[WinFormsTheory]
[MemberData(nameof(TreeNodeMouseClickEventArgs_TestData))]
public void TreeView_OnNodeMouseDoubleClick_Invoke_CallsNodeMouseDoubleClick(TreeNodeMouseClickEventArgs eventArgs)
{
using SubTreeView control = new();
int callCount = 0;
TreeNodeMouseClickEventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.NodeMouseDoubleClick += handler;
control.OnNodeMouseDoubleClick(eventArgs);
Assert.Equal(1, callCount);
// Remove handler.
control.NodeMouseDoubleClick -= handler;
control.OnNodeMouseDoubleClick(eventArgs);
Assert.Equal(1, callCount);
}
public static IEnumerable<object[]> OnNodeMouseHover_TestData()
{
yield return new object[] { null };
yield return new object[] { new TreeNodeMouseHoverEventArgs(null) };
yield return new object[] { new TreeNodeMouseHoverEventArgs(new TreeNode()) };
}
[WinFormsTheory]
[MemberData(nameof(OnNodeMouseHover_TestData))]
public void TreeView_OnNodeMouseHover_Invoke_CallsNodeMouseHover(TreeNodeMouseHoverEventArgs eventArgs)
{
using SubTreeView control = new();
int callCount = 0;
TreeNodeMouseHoverEventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.NodeMouseHover += handler;
control.OnNodeMouseHover(eventArgs);
Assert.Equal(1, callCount);
// Remove handler.
control.NodeMouseHover -= handler;
control.OnNodeMouseHover(eventArgs);
Assert.Equal(1, callCount);
}
public static IEnumerable<object[]> OnRightToLeftLayoutChanged_TestData()
{
yield return new object[] { RightToLeft.Yes, null };
yield return new object[] { RightToLeft.Yes, new EventArgs() };
yield return new object[] { RightToLeft.No, null };
yield return new object[] { RightToLeft.No, new EventArgs() };
yield return new object[] { RightToLeft.Inherit, null };
yield return new object[] { RightToLeft.Inherit, new EventArgs() };
}
[WinFormsTheory]
[MemberData(nameof(OnRightToLeftLayoutChanged_TestData))]
public void TreeView_OnRightToLeftLayoutChanged_Invoke_CallsRightToLeftLayoutChanged(RightToLeft rightToLeft, EventArgs eventArgs)
{
using SubTreeView control = new()
{
RightToLeft = rightToLeft
};
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.RightToLeftLayoutChanged += handler;
control.OnRightToLeftLayoutChanged(eventArgs);
Assert.Equal(1, callCount);
Assert.False(control.IsHandleCreated);
// Remove handler.
control.RightToLeftLayoutChanged -= handler;
control.OnRightToLeftLayoutChanged(eventArgs);
Assert.Equal(1, callCount);
Assert.False(control.IsHandleCreated);
}
public static IEnumerable<object[]> OnRightToLeftLayoutChanged_WithHandle_TestData()
{
yield return new object[] { RightToLeft.Yes, null, 1 };
yield return new object[] { RightToLeft.Yes, new EventArgs(), 1 };
yield return new object[] { RightToLeft.No, null, 0 };
yield return new object[] { RightToLeft.No, new EventArgs(), 0 };
yield return new object[] { RightToLeft.Inherit, null, 0 };
yield return new object[] { RightToLeft.Inherit, new EventArgs(), 0 };
}
[WinFormsTheory]
[MemberData(nameof(OnRightToLeftLayoutChanged_WithHandle_TestData))]
public void TreeView_OnRightToLeftLayoutChanged_InvokeWithHandle_CallsRightToLeftLayoutChanged(RightToLeft rightToLeft, EventArgs eventArgs, int expectedCreatedCallCount)
{
using SubTreeView control = new()
{
RightToLeft = rightToLeft
};
Assert.NotEqual(IntPtr.Zero, control.Handle);
int invalidatedCallCount = 0;
control.Invalidated += (sender, e) => invalidatedCallCount++;
int styleChangedCallCount = 0;
control.StyleChanged += (sender, e) => styleChangedCallCount++;
int createdCallCount = 0;
control.HandleCreated += (sender, e) => createdCallCount++;
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.RightToLeftLayoutChanged += handler;
control.OnRightToLeftLayoutChanged(eventArgs);
Assert.Equal(1, callCount);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(expectedCreatedCallCount, createdCallCount);
// Remove handler.
control.RightToLeftLayoutChanged -= handler;
control.OnRightToLeftLayoutChanged(eventArgs);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(expectedCreatedCallCount * 2, createdCallCount);
}
[WinFormsFact]
public void TreeView_OnRightToLeftLayoutChanged_InvokeInDisposing_DoesNotCallRightToLeftLayoutChanged()
{
using SubTreeView control = new()
{
RightToLeft = RightToLeft.Yes
};
Assert.NotEqual(IntPtr.Zero, control.Handle);
int callCount = 0;
control.RightToLeftLayoutChanged += (sender, e) => callCount++;
int createdCallCount = 0;
control.HandleCreated += (sender, e) => createdCallCount++;
int disposedCallCount = 0;
control.Disposed += (sender, e) =>
{
control.OnRightToLeftLayoutChanged(EventArgs.Empty);
Assert.Equal(0, callCount);
Assert.Equal(0, createdCallCount);
disposedCallCount++;
};
control.Dispose();
Assert.Equal(1, disposedCallCount);
}
[WinFormsTheory]
[InlineData(true, true)]
[InlineData(false, true)]
[InlineData(false, false)]
public unsafe void TreeView_InvokeGetToolInfoWrapper_ReturnsExpected(bool showNodeToolTips, bool useKeyboardToolTip)
{
using TreeView treeView = new();
treeView.ShowNodeToolTips = showNodeToolTips;
ToolTip toolTip = useKeyboardToolTip ? treeView.KeyboardToolTip : new ToolTip();
ToolInfoWrapper<Control> wrapper = treeView.GetToolInfoWrapper(TOOLTIP_FLAGS.TTF_ABSOLUTE, "Test caption", toolTip);
Assert.Equal("Test caption", wrapper.Text);
// Assert.Equal method does not work because char* cannot be used as an argument to it
Assert.Equal(string.Empty, new string(wrapper.Info.lpszText));
}
[WinFormsFact]
public unsafe void TreeView_ShowNodesEnabled_ExternalToolTip_InvokeGetToolInfoWrapper_ReturnsExpected()
{
using TreeView treeView = new();
treeView.ShowNodeToolTips = true;
ToolTip toolTip = new();
ToolInfoWrapper<Control> wrapper = treeView.GetToolInfoWrapper(TOOLTIP_FLAGS.TTF_ABSOLUTE, "Test caption", toolTip);
char* expected = (char*)(-1);
Assert.Null(wrapper.Text);
// Assert.Equal method does not work because char* cannot be used as an argument to it
Assert.True(wrapper.Info.lpszText == expected);
}
[WinFormsTheory]
[InlineData(true)]
[InlineData(false)]
public void TreeView_InvokeAdd_AddNodeToTrackList(bool showNodeToolTips)
{
using TreeView treeView = new();
treeView.ShowNodeToolTips = showNodeToolTips;
TreeNode treeNode = new();
treeView.Nodes.Add(treeNode);
Assert.True(KeyboardToolTipStateMachine.Instance.TestAccessor().IsToolTracked(treeNode));
treeView.Nodes.Remove(treeNode);
}
[WinFormsTheory]
[InlineData(true)]
[InlineData(false)]
public void TreeView_InvokeAddRange_AddNodesToTrackList(bool showNodeToolTips)
{
using TreeView treeView = new();
treeView.ShowNodeToolTips = showNodeToolTips;
TreeNode treeNode1 = new();
TreeNode treeNode2 = new();
TreeNode treeNode3 = new();
var accessor = KeyboardToolTipStateMachine.Instance.TestAccessor();
treeView.Nodes.AddRange([treeNode1, treeNode2, treeNode3]);
Assert.True(accessor.IsToolTracked(treeNode1));
Assert.True(accessor.IsToolTracked(treeNode2));
Assert.True(accessor.IsToolTracked(treeNode3));
}
[WinFormsTheory]
[InlineData(true)]
[InlineData(false)]
public void TreeView_InvokeAdd_AddSubNodeToTrackList(bool showNodeToolTips)
{
using TreeView treeView = new();
treeView.ShowNodeToolTips = showNodeToolTips;
TreeNode treeNode = new();
TreeNode treeSubNodeLevel1 = new();
TreeNode treeSubNodeLevel2 = new();
var accessor = KeyboardToolTipStateMachine.Instance.TestAccessor();
treeView.Nodes.Add(treeNode);
treeNode.Nodes.Add(treeSubNodeLevel1);
treeSubNodeLevel1.Nodes.Add(treeSubNodeLevel2);
Assert.True(accessor.IsToolTracked(treeNode));
Assert.True(accessor.IsToolTracked(treeSubNodeLevel1));
Assert.True(accessor.IsToolTracked(treeSubNodeLevel2));
treeView.Nodes.Remove(treeNode);
}
[WinFormsTheory]
[InlineData(true)]
[InlineData(false)]
public void TreeView_InvokeAdd_AddNodeAndSubNodeToTrackList(bool showNodeToolTips)
{
using TreeView treeView = new();
treeView.ShowNodeToolTips = showNodeToolTips;
TreeNode treeNode = new();
TreeNode treeSubNodeLevel1 = new();
TreeNode treeSubNodeLevel2 = new();
var accessor = KeyboardToolTipStateMachine.Instance.TestAccessor();
treeNode.Nodes.Add(treeSubNodeLevel1);
treeSubNodeLevel1.Nodes.Add(treeSubNodeLevel2);
treeView.Nodes.Add(treeNode);
Assert.True(accessor.IsToolTracked(treeNode));
Assert.True(accessor.IsToolTracked(treeSubNodeLevel1));
Assert.True(accessor.IsToolTracked(treeSubNodeLevel2));
treeView.Nodes.Remove(treeNode);
}
[WinFormsTheory]
[InlineData(true)]
[InlineData(false)]
public void TreeView_InvokeRemove_RemoveNodeFromTrackList(bool showNodeToolTips)
{
using TreeView treeView = new();
treeView.ShowNodeToolTips = showNodeToolTips;
TreeNode treeNode = new();
var accessor = KeyboardToolTipStateMachine.Instance.TestAccessor();
treeView.Nodes.Add(treeNode);
Assert.True(accessor.IsToolTracked(treeNode));
treeView.Nodes.Remove(treeNode);
Assert.False(accessor.IsToolTracked(treeNode));
}
[WinFormsTheory]
[InlineData(true)]
[InlineData(false)]
public void TreeView_InvokeRemove_RemoveNodeAndSubNodesFromTrackList(bool showNodeToolTips)
{
using TreeView treeView = new();
treeView.ShowNodeToolTips = showNodeToolTips;
TreeNode treeNode = new();
TreeNode treeSubNodeLevel1 = new();
TreeNode treeSubNodeLevel2 = new();
var accessor = KeyboardToolTipStateMachine.Instance.TestAccessor();
treeNode.Nodes.Add(treeSubNodeLevel1);
treeSubNodeLevel1.Nodes.Add(treeSubNodeLevel2);
treeView.Nodes.Add(treeNode);
Assert.True(accessor.IsToolTracked(treeNode));
Assert.True(accessor.IsToolTracked(treeSubNodeLevel1));
Assert.True(accessor.IsToolTracked(treeSubNodeLevel2));
treeView.Nodes.Remove(treeNode);
Assert.False(accessor.IsToolTracked(treeNode));
Assert.False(accessor.IsToolTracked(treeSubNodeLevel1));
Assert.False(accessor.IsToolTracked(treeSubNodeLevel2));
}
[WinFormsTheory]
[InlineData(true)]
[InlineData(false)]
public void TreeView_InvokeInsert_AddNodeToTrackList(bool showNodeToolTips)
{
using TreeView treeView = new();
treeView.ShowNodeToolTips = showNodeToolTips;
TreeNode treeNode = new();
treeView.Nodes.Insert(0, treeNode);
Assert.True(KeyboardToolTipStateMachine.Instance.TestAccessor().IsToolTracked(treeNode));
}
[WinFormsTheory]
[InlineData(true)]
[InlineData(false)]
public void TreeView_InvokeDispose_RemoveNodesFromTrackList(bool showNodeToolTips)
{
using TreeView treeView = new();
treeView.ShowNodeToolTips = showNodeToolTips;
TreeNode treeNode = new();
TreeNode treeSubNodeLevel1 = new();
TreeNode treeSubNodeLevel2 = new();
var accessor = KeyboardToolTipStateMachine.Instance.TestAccessor();
treeNode.Nodes.Add(treeSubNodeLevel1);
treeSubNodeLevel1.Nodes.Add(treeSubNodeLevel2);
treeView.Nodes.Add(treeNode);
Assert.True(accessor.IsToolTracked(treeNode));
Assert.True(accessor.IsToolTracked(treeSubNodeLevel1));
Assert.True(accessor.IsToolTracked(treeSubNodeLevel2));
treeView.Dispose();
Assert.False(accessor.IsToolTracked(treeNode));
Assert.False(accessor.IsToolTracked(treeSubNodeLevel1));
Assert.False(accessor.IsToolTracked(treeSubNodeLevel2));
}
[WinFormsFact]
public void TreeView_Invokes_SetToolTip_IfExternalToolTipIsSet()
{
using TreeView treeView = new();
treeView.ShowNodeToolTips = true;
using ToolTip toolTip = new();
treeView.CreateControl();
dynamic listViewDynamic = treeView.TestAccessor().Dynamic;
string actual = listViewDynamic._controlToolTipText;
Assert.Null(actual);
Assert.NotEqual(IntPtr.Zero, toolTip.Handle); // A workaround to create the toolTip native window Handle
string text = "Some test text";
toolTip.SetToolTip(treeView, text); // Invokes TreeView's SetToolTip inside
actual = listViewDynamic._controlToolTipText;
Assert.Equal(text, actual);
}
[WinFormsFact]
public void TreeView_Remove_NotSelectedNode()
{
using TreeView treeView = new();
treeView.CreateControl();
treeView.Nodes.AddRange([new("Test 1"), new("Test 2"), new("Test 3")]);
treeView.SelectedNode = treeView.Nodes[0];
Assert.True(treeView.Nodes[0].IsSelected);
Assert.Equal(3, treeView.Nodes.Count);
Assert.Equal(treeView.Nodes[0], treeView.SelectedNode);
treeView.Nodes.Remove(treeView.Nodes[2]);
Assert.True(treeView.Nodes[0].IsSelected);
Assert.Equal(2, treeView.Nodes.Count);
Assert.Equal(treeView.Nodes[0], treeView.SelectedNode);
treeView.Nodes.Remove(treeView.Nodes[1]);
Assert.True(treeView.Nodes[0].IsSelected);
Assert.Equal(1, treeView.Nodes.Count);
Assert.Equal(treeView.Nodes[0], treeView.SelectedNode);
}
[WinFormsFact]
public void TreeView_Remove_SelectedNode()
{
using TreeView treeView = new();
treeView.CreateControl();
treeView.Nodes.AddRange([new("Test 1"), new("Test 2"), new("Test 3")]);
treeView.SelectedNode = treeView.Nodes[0];
for (int count = treeView.Nodes.Count; count > 1; count -= 1)
{
TreeNode node = treeView.Nodes[0];
Assert.True(node.IsSelected);
Assert.Equal(count, treeView.Nodes.Count);
Assert.Equal(node, treeView.SelectedNode);
treeView.Nodes.Remove(node);
count -= 1;
Assert.False(node.IsSelected);
Assert.Equal(count, treeView.Nodes.Count);
if (count == 0)
{
Assert.Null(treeView.SelectedNode);
}
else
{
Assert.Equal(treeView.Nodes[0], treeView.SelectedNode);
}
}
}
[WinFormsFact]
public void TreeView_Remove_NotSelectedSubNode()
{
using TreeView treeView = new();
treeView.CreateControl();
treeView.Nodes.Add("Test");
TreeNode treeNode = treeView.Nodes[0];
treeNode.Nodes.AddRange([new("Test 1"), new("Test 2"), new("Test 3")]);
treeView.SelectedNode = treeNode.Nodes[0];
Assert.True(treeNode.Nodes[0].IsSelected);
Assert.Equal(3, treeNode.Nodes.Count);
Assert.Equal(treeNode.Nodes[0], treeView.SelectedNode);
treeNode.Nodes.Remove(treeNode.Nodes[2]);
Assert.True(treeNode.Nodes[0].IsSelected);
Assert.Equal(2, treeNode.Nodes.Count);
Assert.Equal(treeNode.Nodes[0], treeView.SelectedNode);
treeNode.Nodes.Remove(treeNode.Nodes[1]);
Assert.True(treeNode.Nodes[0].IsSelected);
Assert.Equal(1, treeNode.Nodes.Count);
Assert.Equal(treeNode.Nodes[0], treeView.SelectedNode);
}
[WinFormsFact]
public void TreeView_Remove_SelectedSubNode()
{
using TreeView treeView = new();
treeView.CreateControl();
treeView.Nodes.Add("Test");
TreeNode treeNode = treeView.Nodes[0];
treeNode.Nodes.AddRange([new("Test 1"), new("Test 2"), new("Test 3")]);
treeView.SelectedNode = treeNode.Nodes[0];
for (int count = treeNode.Nodes.Count; count > 1; count -= 1)
{
TreeNode node = treeNode.Nodes[0];
Assert.True(node.IsSelected);
Assert.Equal(count, treeNode.Nodes.Count);
Assert.Equal(node, treeView.SelectedNode);
treeView.Nodes.Remove(node);
count -= 1;
Assert.False(node.IsSelected);
Assert.Equal(count, treeNode.Nodes.Count);
if (count == 0)
{
Assert.Equal(treeView.Nodes[0], treeView.SelectedNode);
}
else
{
Assert.Equal(treeNode.Nodes[0], treeView.SelectedNode);
}
}
}
[WinFormsFact]
public void TreeView_Remove_ParentSelectedNode()
{
using TreeView treeView = new();
treeView.CreateControl();
treeView.Nodes.Add("Test");
TreeNode treeNode = treeView.Nodes[0];
treeNode.Nodes.Add("Test 1");
treeView.SelectedNode = treeNode.Nodes[0];
Assert.True(treeNode.Nodes[0].IsSelected);
Assert.Equal(treeNode.Nodes[0], treeView.SelectedNode);
Assert.Equal(1, treeNode.Nodes.Count);
Assert.Equal(1, treeView.Nodes.Count);
treeView.Nodes.Remove(treeNode);
Assert.False(treeNode.Nodes[0].IsSelected);
Assert.Null(treeView.SelectedNode);
Assert.Equal(0, treeView.Nodes.Count);
}
[WinFormsTheory]
[InlineData(true)]
[InlineData(false)]
public void TreeView_Remove_NotCheckedNode(bool checkBoxes)
{
using TreeView treeView = new() { CheckBoxes = checkBoxes };
treeView.CreateControl();
treeView.Nodes.AddRange([new("Test 1"), new("Test 2"), new("Test 3")]);
treeView.Nodes[0].Checked = true;
Assert.True(treeView.Nodes[0].Checked);
Assert.Equal(3, treeView.Nodes.Count);
treeView.Nodes.Remove(treeView.Nodes[2]);
Assert.True(treeView.Nodes[0].Checked);
Assert.Equal(2, treeView.Nodes.Count);
treeView.Nodes.Remove(treeView.Nodes[1]);
Assert.True(treeView.Nodes[0].Checked);
Assert.Equal(1, treeView.Nodes.Count);
}
[WinFormsTheory]
[InlineData(true)]
[InlineData(false)]
public void TreeView_Remove_CheckedNode(bool checkBoxes)
{
using TreeView treeView = new() { CheckBoxes = checkBoxes };
treeView.CreateControl();
treeView.Nodes.AddRange([new("Test 1"), new("Test 2"), new("Test 3")]);
for (int count = treeView.Nodes.Count; count > 1; count -= 1)
{
TreeNode node = treeView.Nodes[0];
node.Checked = true;
Assert.True(node.Checked);
Assert.Equal(count, treeView.Nodes.Count);
treeView.Nodes.Remove(node);
count -= 1;
Assert.True(node.Checked);
Assert.Equal(count, treeView.Nodes.Count);
}
}
[WinFormsTheory]
[InlineData(true)]
[InlineData(false)]
public void TreeView_Remove_NotCheckedSubNode(bool checkBoxes)
{
using TreeView treeView = new() { CheckBoxes = checkBoxes };
treeView.CreateControl();
treeView.Nodes.Add("Test");
TreeNode treeNode = treeView.Nodes[0];
treeNode.Nodes.AddRange([new("Test 1"), new("Test 2"), new("Test 3")]);
treeNode.Nodes[0].Checked = true;
Assert.True(treeNode.Nodes[0].Checked);
Assert.Equal(3, treeNode.Nodes.Count);
treeNode.Nodes.Remove(treeNode.Nodes[2]);
Assert.True(treeNode.Nodes[0].Checked);
Assert.Equal(2, treeNode.Nodes.Count);
treeNode.Nodes.Remove(treeNode.Nodes[1]);
Assert.True(treeNode.Nodes[0].Checked);
Assert.Equal(1, treeNode.Nodes.Count);
}
[WinFormsTheory]
[InlineData(true)]
[InlineData(false)]
public void TreeView_Remove_CheckedSubNode(bool checkBoxes)
{
using TreeView treeView = new() { CheckBoxes = checkBoxes };
treeView.CreateControl();
treeView.Nodes.Add("Test");
TreeNode treeNode = treeView.Nodes[0];
treeNode.Nodes.AddRange([new("Test 1"), new("Test 2"), new("Test 3")]);
for (int count = treeNode.Nodes.Count; count > 1; count -= 1)
{
TreeNode node = treeNode.Nodes[0];
node.Checked = true;
Assert.True(node.Checked);
Assert.Equal(count, treeNode.Nodes.Count);
treeView.Nodes.Remove(node);
count -= 1;
Assert.True(node.Checked);
Assert.Equal(count, treeNode.Nodes.Count);
}
}
[WinFormsTheory]
[InlineData(true)]
[InlineData(false)]
public void TreeView_Remove_ParentCheckedNode(bool checkBoxes)
{
using TreeView treeView = new() { CheckBoxes = checkBoxes };
treeView.CreateControl();
treeView.Nodes.Add("Test");
TreeNode treeNode = treeView.Nodes[0];
treeNode.Nodes.Add("Test 1");
treeView.Nodes[0].Checked = true;
treeNode.Nodes[0].Checked = true;
Assert.True(treeNode.Checked);
Assert.True(treeNode.Nodes[0].Checked);
Assert.Equal(1, treeNode.Nodes.Count);
Assert.Equal(1, treeView.Nodes.Count);
treeView.Nodes.Remove(treeNode);
Assert.True(treeNode.Checked);
Assert.True(treeNode.Nodes[0].Checked);
Assert.Equal(1, treeNode.Nodes.Count);
Assert.Equal(0, treeView.Nodes.Count);
}
[WinFormsFact]
public void TreeView_TreeViewNodeSorter_ComparesTreeNodes()
{
using TreeView treeView = new();
treeView.Nodes.Add("Root 1");
treeView.Nodes[0].Nodes.Add("Child 1");
treeView.Nodes[0].Nodes.Add("Child 2");
treeView.Nodes.Add("Root 2");
treeView.Nodes[1].Nodes.Add("Child 3");
treeView.Nodes[1].Nodes.Add("Child 4");
IComparer treeSorter = Comparer<object>.Create(
(object x, object y) =>
{
Assert.True(x is TreeNode);
Assert.True(y is TreeNode);
return 0;
});
// Setting TreeViewNodeSorter invokes sorting automatically
treeView.TreeViewNodeSorter = treeSorter;
}
[WinFormsTheory]
[InlineData("A", "B")]
[InlineData("A", "A")]
[InlineData("B", "A")]
public void Clear_AfterSort_ShouldNotGetStuck(string firstNodeText, string secondNodeText)
{
using TreeView treeView = new();
TreeNode parent = new("Parent");
treeView.Nodes.Add(parent);
TreeNode firstNode = new(firstNodeText);
parent.Nodes.Add(firstNode);
TreeNode secondNode = new(secondNodeText);
parent.Nodes.Add(secondNode);
treeView.Sort();
Action action = () => parent.Nodes.Clear();
action.ExecutionTime().Should().BeLessThanOrEqualTo(TimeSpan.FromMilliseconds(500));
action.Should().NotThrow();
}
[WinFormsTheory]
[InlineData("A", "B")]
[InlineData("A", "A")]
[InlineData("B", "A")]
public void Remove_AfterSort_ShouldNotThrowException(string firstNodeText, string secondNodeText)
{
using TreeView treeView = new();
TreeNode parent = new("Parent");
treeView.Nodes.Add(parent);
TreeNode firstNode = new(firstNodeText);
parent.Nodes.Add(firstNode);
TreeNode secondNode = new(secondNodeText);
parent.Nodes.Add(secondNode);
treeView.Sort();
parent.Nodes.Remove(firstNode);
Action action = () => parent.Nodes.Remove(secondNode);
action.Should().NotThrow();
}
[WinFormsFact]
public void Remove_MultipleLevelsNodes_AfterSort()
{
using TreeView treeView = new();
TreeNode parent = new("Parent");
treeView.Nodes.Add(parent);
TreeNode treeNode1 = new("Node1");
TreeNode treeNode2 = new("Node0");
TreeNode treeNode3 = new("Node2");
TreeNode treeNode4 = new("SubNode1-1-1-1", [treeNode1, treeNode2, treeNode3]);
TreeNode treeNode5 = new("SubNode1-1-1", [treeNode4]);
TreeNode treeNode6 = new("SubNode1-1", [treeNode5]);
TreeNode treeNode7 = new("SubNode1", [treeNode6]);
TreeNode treeNode8 = new("Parent", [treeNode7]);
parent.Nodes.AddRange([treeNode8]);
treeView.Sort();
Assert.Equal(1, treeNode5.Nodes.Count);
parent.Nodes.Remove(treeNode4);
Assert.Equal(0, treeNode5.Nodes.Count);
Action action = () =>
{
parent.Nodes.Remove(treeNode5);
parent.Nodes.Remove(treeNode6);
parent.Nodes.Remove(treeNode7);
parent.Nodes.Remove(treeNode8);
};
action.Should().NotThrow();
}
[WinFormsFact]
public void Clear_MultipleLevelsNodes_AfterSort()
{
using TreeView treeView = new();
TreeNode parent = new("Parent");
treeView.Nodes.Add(parent);
TreeNode lastSubNode1 = new("Node1");
TreeNode lastSubNode2 = new("Node2");
TreeNode lastSubNode3 = new("Node3");
TreeNode fifthSubNode1 = new("SubNode1-1-1-1", [lastSubNode2, lastSubNode3, lastSubNode1]);
TreeNode fifthSubNode2 = new("SubNode1-1-1-2");
TreeNode fourthSubNode1 = new("SubNode1-1-1", [fifthSubNode1, fifthSubNode2]);
TreeNode fourthSubNode2 = new("SubNode1-1-2");
TreeNode thirdSubNode1 = new("SubNode1-1", [fourthSubNode2, fourthSubNode1]);
TreeNode thirdSubNode2 = new("SubNode1-2");
TreeNode secondSubNode1 = new("SubNode1", [thirdSubNode2, thirdSubNode1]);
TreeNode secondSubNode2 = new("SubNode2");
TreeNode firstSubNode = new("Parent", [secondSubNode1, secondSubNode2]);
parent.Nodes.AddRange([firstSubNode]);
// Make sure all nodes have been added as expected.
Assert.Equal(3, fifthSubNode1.Nodes.Count);
Assert.Equal(2, parent.Nodes[0].Nodes.Count);
Assert.Equal(1, parent.Nodes.Count);
Assert.Equal(fourthSubNode2, thirdSubNode1.Nodes[0]);
Assert.Equal(lastSubNode3, fifthSubNode1.Nodes[1]);
treeView.Sort();
// Verify that the sort is successful.
Assert.Equal(fourthSubNode2, thirdSubNode1.Nodes[1]);
Assert.Equal(lastSubNode3, fifthSubNode1.Nodes[2]);
// Clear the last non-leaf nodes.
fifthSubNode1.Nodes.Clear();
Assert.Equal(0, fifthSubNode1.Nodes.Count);
// Clear the first-level child nodes.
firstSubNode.Nodes.Clear();
Assert.Equal(0, firstSubNode.Nodes.Count);
// Clear top-level nodes.
Action action = parent.Nodes.Clear;
action.Should().NotThrow();
Assert.Equal(0, parent.Nodes.Count);
}
[WinFormsFact]
public void Verify_NodeValue_AfterSortAndRemove()
{
using TreeView treeView = new();
TreeNode treeNode1 = new("Node1");
TreeNode treeNode2 = new("Node2");
TreeNode treeNode3 = new("Node3");
TreeNode treeNode4 = new("Node3");
TreeNode parent = new("Parent", [treeNode2, treeNode3, treeNode1, treeNode4]);
parent.Nodes.Add("Node1", "Node1");
treeView.Nodes.AddRange(parent);
treeView.Sort();
// Remove treeNode3, which has the same text as treeNode4.
Assert.Equal(treeNode3, parent.Nodes[3]);
parent.Nodes.Remove(treeNode3);
Assert.Equal(4, parent.Nodes.Count);
Assert.Equal(treeNode4, parent.Nodes[3]);
// Remove node "Node1" by key, which has the same text as treeNode1.
Assert.True(parent.Nodes.ContainsKey("Node1"));
parent.Nodes.RemoveByKey("Node1");
Assert.False(parent.Nodes.ContainsKey("Node1"));
Assert.Equal(treeNode1, parent.Nodes[0]);
// Remove the first child node.
parent.Nodes.Remove(parent.Nodes[0]);
Assert.Equal(2, parent.Nodes.Count);
Assert.Equal(treeNode2, parent.Nodes[0]);
// Remove the last child node.
parent.Nodes.Remove(parent.Nodes[1]);
Assert.Equal(1, parent.Nodes.Count);
Assert.Equal(treeNode2, parent.Nodes[0]);
}
// Regression test for https://github.com/dotnet/winforms/issues/11243
[WinFormsFact]
public void TreeView_TreeNodeAddRangeSequence()
{
using TreeView treeView = new();
TreeNode treeNode1 = new("a0");
TreeNode treeNode2 = new("b0");
TreeNode treeNode3 = new("c0");
TreeNode treeNode4 = new("a1");
TreeNode treeNode5 = new("b1");
TreeNode treeNode6 = new("c1");
TreeNode treeNode7 = new("a2");
TreeNode rootNode = new("Root", [new TreeNode("child")]);
treeView.Nodes.Add(rootNode);
treeView.CreateControl();
rootNode.Nodes.AddRange(treeNode1, treeNode2, treeNode3, treeNode4, treeNode5, treeNode6, treeNode7);
rootNode.ExpandAll();
rootNode.Should().Be(treeView.Nodes[0]);
TreeNode childNode1 = rootNode.Nodes[0];
TreeNode childNode2 = rootNode.Nodes[1];
TreeNode childNode3 = rootNode.Nodes[2];
TreeNode childNode4 = rootNode.Nodes[3];
TreeNode childNode5 = rootNode.Nodes[4];
TreeNode childNode6 = rootNode.Nodes[5];
TreeNode childNode7 = rootNode.Nodes[6];
TreeNode childNode8 = rootNode.Nodes[7];
childNode1.Text.Should().Be("child");
childNode1.NextVisibleNode.Should().NotBeNull();
childNode1.NextVisibleNode.Text.Should().Be("a0");
childNode2.NextVisibleNode.Should().NotBeNull();
childNode2.NextVisibleNode.Text.Should().Be("b0");
childNode3.NextVisibleNode.Should().NotBeNull();
childNode3.NextVisibleNode.Text.Should().Be("c0");
childNode4.NextVisibleNode.Should().NotBeNull();
childNode4.NextVisibleNode.Text.Should().Be("a1");
childNode5.NextVisibleNode.Should().NotBeNull();
childNode5.NextVisibleNode.Text.Should().Be("b1");
childNode6.NextVisibleNode.Should().NotBeNull();
childNode6.NextVisibleNode.Text.Should().Be("c1");
childNode7.NextVisibleNode.Should().NotBeNull();
childNode7.NextVisibleNode.Text.Should().Be("a2");
childNode8.NextVisibleNode.Should().BeNull();
}
[WinFormsTheory]
[InlineData(false, null)]
[InlineData(true, null)]
[InlineData(false, "node")]
[InlineData(true, "node")]
public void TreeView_TopNode_Test(bool createHandle, string nodeName)
{
using TreeView treeView = new();
TreeNode node = nodeName is null ? null : new TreeNode(nodeName);
if (node is not null)
{
treeView.Nodes.Add(node);
}
if (createHandle)
{
_ = treeView.Handle;
}
treeView.TopNode = node;
treeView.TopNode.Should().Be(node);
treeView.IsHandleCreated.Should().Be(createHandle);
}
[WinFormsFact]
public void TreeViewLabelEditNativeWindow_AccessibilityObject_ReturnsExpected()
{
using TreeView treeView = new();
TreeViewLabelEditNativeWindow nativeWindow = new(treeView);
var accessibilityObject = nativeWindow.AccessibilityObject;
accessibilityObject.Should().NotBeNull();
accessibilityObject.Should().BeOfType<TreeViewLabelEditAccessibleObject>();
}
private TreeView InitializeTreeViewWithNodes()
{
TreeView treeView = new();
AddNodes(treeView, "Root1", "Child1", "GrandChild1");
AddNodes(treeView, "Root2");
return treeView;
}
private void AddNodes(TreeView treeView, string root, string child = null, string grandChild = null)
{
TreeNode rootNode = new(root);
treeView.Nodes.Add(rootNode);
if (child is not null)
{
TreeNode childNode = new(child);
rootNode.Nodes.Add(childNode);
if (grandChild is not null)
{
TreeNode grandChildNode = new(grandChild);
childNode.Nodes.Add(grandChildNode);
}
}
}
[WinFormsFact]
public void TreeView_CollapseAll_Invoke_CollapsesAllNodes()
{
using TreeView treeView = InitializeTreeViewWithNodes();
treeView.CollapseAll();
treeView.Nodes[0].IsExpanded.Should().BeFalse();
treeView.Nodes[1].IsExpanded.Should().BeFalse();
}
[WinFormsFact]
public void TreeView_ExpandAll_Invoke_UpdatesAllNodes()
{
using TreeView treeView = InitializeTreeViewWithNodes();
treeView.ExpandAll();
treeView.Nodes[0].IsExpanded.Should().BeTrue();
treeView.Nodes[1].IsExpanded.Should().BeTrue();
}
[WinFormsFact]
public void TreeView_GetNodeCount_Invoke_ReturnsExpected()
{
using TreeView treeView = InitializeTreeViewWithNodes();
int countWithoutSubTrees = treeView.GetNodeCount(false);
countWithoutSubTrees.Should().Be(2);
int countWithSubTrees = treeView.GetNodeCount(true);
countWithSubTrees.Should().Be(4);
}
[WinFormsFact]
public void TreeView_ResetIndent_Invoke_Success()
{
using TreeView treeView = new();
treeView.Indent = 10;
var accessor = treeView.TestAccessor();
accessor.Dynamic.ResetIndent();
treeView.Indent.Should().Be(19);
}
[WinFormsFact]
public void TreeView_ResetItemHeight_Invoke_Success()
{
using TreeView treeView = new();
treeView.ItemHeight = 10;
var accessor = treeView.TestAccessor();
accessor.Dynamic.ResetItemHeight();
treeView.ItemHeight.Should().Be(19);
}
[WinFormsFact]
public void TreeView_ShouldSerializeIndent_Invoke_ReturnsExpected()
{
using TreeView treeView = new();
var accessor = treeView.TestAccessor();
bool result = accessor.Dynamic.ShouldSerializeIndent();
result.Should().BeFalse();
treeView.Indent = 10;
result = accessor.Dynamic.ShouldSerializeIndent();
result.Should().BeTrue();
}
[WinFormsFact]
public void TreeView_ShouldSerializeItemHeight_Invoke_ReturnsExpected()
{
using TreeView treeView = new();
var accessor = treeView.TestAccessor();
bool result = accessor.Dynamic.ShouldSerializeItemHeight();
result.Should().BeFalse();
treeView.ItemHeight = 10;
result = accessor.Dynamic.ShouldSerializeItemHeight();
result.Should().BeTrue();
}
[WinFormsFact]
public void TreeView_ToString_Invoke_ReturnsExpected()
{
using TreeView treeView = new();
treeView.ToString().Should().Be("System.Windows.Forms.TreeView, Nodes.Count: 0");
treeView.Nodes.Add(new TreeNode("Node1"));
treeView.Nodes.Add(new TreeNode("Node2"));
treeView.ToString().Should().Be($"System.Windows.Forms.TreeView, Nodes.Count: 2, Nodes[0]: {treeView.Nodes[0]}");
}
[WinFormsFact]
public void ArraySubsetEnumerator_Behavior_AfterMoveNextAndReset()
{
object[] array = { "a", "b", "c" };
ArraySubsetEnumerator enumerator = new(array, 2);
enumerator.MoveNext().Should().BeTrue();
enumerator.Current.Should().Be("a");
enumerator.MoveNext().Should().BeTrue();
enumerator.Current.Should().Be("b");
enumerator.Reset();
enumerator.Current.Should().BeNull();
enumerator.MoveNext().Should().BeTrue();
enumerator.Current.Should().Be("a");
}
[WinFormsTheory]
[InlineData(5)]
[InlineData(10)]
public void TreeView_VisibleCount_MultipleNodes_ReturnsExpected(int nodeCount)
{
using TreeView treeView = new();
for (int i = 0; i < nodeCount; i++)
{
treeView.Nodes.Add($"Node{i}");
}
treeView.CreateControl();
treeView.Height = 100;
treeView.VisibleCount.Should().Be(5);
}
private class SubTreeView : TreeView
{
public new bool CanEnableIme => base.CanEnableIme;
public new bool CanRaiseEvents => base.CanRaiseEvents;
public new CreateParams CreateParams => base.CreateParams;
public new Cursor DefaultCursor => base.DefaultCursor;
public new ImeMode DefaultImeMode => base.DefaultImeMode;
public new Padding DefaultMargin => base.DefaultMargin;
public new Size DefaultMaximumSize => base.DefaultMaximumSize;
public new Size DefaultMinimumSize => base.DefaultMinimumSize;
public new Padding DefaultPadding => base.DefaultPadding;
public new Size DefaultSize => base.DefaultSize;
public new bool DesignMode => base.DesignMode;
public new bool DoubleBuffered
{
get => base.DoubleBuffered;
set => base.DoubleBuffered = value;
}
public new EventHandlerList Events => base.Events;
public new int FontHeight
{
get => base.FontHeight;
set => base.FontHeight = value;
}
public new ImeMode ImeModeBase
{
get => base.ImeModeBase;
set => base.ImeModeBase = value;
}
public new bool ResizeRedraw
{
get => base.ResizeRedraw;
set => base.ResizeRedraw = value;
}
public new bool ShowFocusCues => base.ShowFocusCues;
public new bool ShowKeyboardCues => base.ShowKeyboardCues;
public new AutoSizeMode GetAutoSizeMode() => base.GetAutoSizeMode();
public new bool GetStyle(ControlStyles flag) => base.GetStyle(flag);
public new bool GetTopLevel() => base.GetTopLevel();
public new void OnAfterCheck(TreeViewEventArgs e) => base.OnAfterCheck(e);
public new void OnAfterCollapse(TreeViewEventArgs e) => base.OnAfterCollapse(e);
public new void OnAfterExpand(TreeViewEventArgs e) => base.OnAfterExpand(e);
public new void OnAfterLabelEdit(NodeLabelEditEventArgs e) => base.OnAfterLabelEdit(e);
public new void OnAfterSelect(TreeViewEventArgs e) => base.OnAfterSelect(e);
public new void OnBeforeCheck(TreeViewCancelEventArgs e) => base.OnBeforeCheck(e);
public new void OnBeforeCollapse(TreeViewCancelEventArgs e) => base.OnBeforeCollapse(e);
public new void OnBeforeExpand(TreeViewCancelEventArgs e) => base.OnBeforeExpand(e);
public new void OnBeforeLabelEdit(NodeLabelEditEventArgs e) => base.OnBeforeLabelEdit(e);
public new void OnBeforeSelect(TreeViewCancelEventArgs e) => base.OnBeforeSelect(e);
public new void OnDrawNode(DrawTreeNodeEventArgs e) => base.OnDrawNode(e);
public new void OnItemDrag(ItemDragEventArgs e) => base.OnItemDrag(e);
public new void OnKeyDown(KeyEventArgs e) => base.OnKeyDown(e);
public new void OnKeyPress(KeyPressEventArgs e) => base.OnKeyPress(e);
public new void OnKeyUp(KeyEventArgs e) => base.OnKeyUp(e);
public new void OnHandleCreated(EventArgs e) => base.OnHandleCreated(e);
public new void OnHandleDestroyed(EventArgs e) => base.OnHandleDestroyed(e);
public new void OnMouseHover(EventArgs e) => base.OnMouseHover(e);
public new void OnMouseLeave(EventArgs e) => base.OnMouseLeave(e);
public new void OnNodeMouseClick(TreeNodeMouseClickEventArgs e) => base.OnNodeMouseClick(e);
public new void OnNodeMouseDoubleClick(TreeNodeMouseClickEventArgs e) => base.OnNodeMouseDoubleClick(e);
public new void OnNodeMouseHover(TreeNodeMouseHoverEventArgs e) => base.OnNodeMouseHover(e);
public new void OnRightToLeftLayoutChanged(EventArgs e) => base.OnRightToLeftLayoutChanged(e);
}
}
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