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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.ComponentModel;
using System.Drawing;
using System.Reflection;
using System.Windows.Forms.TestUtilities;
using Point = System.Drawing.Point;
using Size = System.Drawing.Size;
namespace System.Windows.Forms.Tests;
public class ContainerControlTests
{
[WinFormsFact]
public void ContainerControl_Ctor_Default()
{
using SubContainerControl control = new();
Assert.Null(control.AccessibleDefaultActionDescription);
Assert.Null(control.AccessibleDescription);
Assert.Null(control.AccessibleName);
Assert.Null(control.ActiveControl);
Assert.Equal(AccessibleRole.Default, control.AccessibleRole);
Assert.False(control.AllowDrop);
Assert.Equal(AnchorStyles.Top | AnchorStyles.Left, control.Anchor);
Assert.False(control.AutoScroll);
Assert.Equal(SizeF.Empty, control.AutoScaleDimensions);
Assert.Equal(new SizeF(1, 1), control.AutoScaleFactor);
Assert.Equal(Size.Empty, control.AutoScrollMargin);
Assert.Equal(AutoScaleMode.Inherit, control.AutoScaleMode);
Assert.Equal(Size.Empty, control.AutoScrollMinSize);
Assert.Equal(Point.Empty, control.AutoScrollPosition);
Assert.False(control.AutoSize);
Assert.Equal(AutoValidate.EnablePreventFocusChange, control.AutoValidate);
Assert.Equal(Control.DefaultBackColor, control.BackColor);
Assert.Null(control.BackgroundImage);
Assert.Equal(ImageLayout.Tile, control.BackgroundImageLayout);
Assert.NotNull(control.BindingContext);
Assert.Same(control.BindingContext, control.BindingContext);
Assert.Equal(0, control.Bottom);
Assert.Equal(Rectangle.Empty, control.Bounds);
Assert.False(control.CanEnableIme);
Assert.False(control.CanFocus);
Assert.True(control.CanRaiseEvents);
Assert.True(control.CanSelect);
Assert.False(control.Capture);
Assert.True(control.CausesValidation);
Assert.Equal(Rectangle.Empty, control.ClientRectangle);
Assert.Equal(Size.Empty, control.ClientSize);
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.Equal(SizeF.Empty, control.CurrentAutoScaleDimensions);
Assert.Equal(Cursors.Default, control.Cursor);
Assert.Equal(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(Size.Empty, control.DefaultSize);
Assert.False(control.DesignMode);
Assert.Equal(Rectangle.Empty, control.DisplayRectangle);
Assert.Equal(DockStyle.None, control.Dock);
Assert.NotNull(control.DockPadding);
Assert.Same(control.DockPadding, control.DockPadding);
Assert.Equal(0, control.DockPadding.Top);
Assert.Equal(0, control.DockPadding.Bottom);
Assert.Equal(0, control.DockPadding.Left);
Assert.Equal(0, control.DockPadding.Right);
Assert.False(control.DoubleBuffered);
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(Control.DefaultForeColor, control.ForeColor);
Assert.False(control.HasChildren);
Assert.Equal(0, control.Height);
Assert.NotNull(control.HorizontalScroll);
Assert.Same(control.HorizontalScroll, control.HorizontalScroll);
Assert.False(control.HScroll);
Assert.Equal(ImeMode.NoControl, control.ImeMode);
Assert.Equal(ImeMode.NoControl, control.ImeModeBase);
Assert.False(control.IsAccessible);
Assert.False(control.IsMirrored);
Assert.NotNull(control.LayoutEngine);
Assert.Same(control.LayoutEngine, control.LayoutEngine);
Assert.Equal(0, control.Left);
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.Equal(Padding.Empty, control.Padding);
Assert.Null(control.Parent);
Assert.Equal(Size.Empty, control.PreferredSize);
Assert.Equal("Microsoft\u00AE .NET", control.ProductName);
Assert.False(control.RecreatingHandle);
Assert.Null(control.Region);
Assert.False(control.ResizeRedraw);
Assert.Equal(0, control.Right);
Assert.Equal(RightToLeft.No, control.RightToLeft);
Assert.True(control.ShowFocusCues);
Assert.True(control.ShowKeyboardCues);
Assert.Null(control.Site);
Assert.Equal(Size.Empty, control.Size);
Assert.Equal(0, control.TabIndex);
Assert.True(control.TabStop);
Assert.Empty(control.Text);
Assert.Equal(0, control.Top);
Assert.Null(control.TopLevelControl);
Assert.False(control.UseWaitCursor);
Assert.True(control.Visible);
Assert.NotNull(control.VerticalScroll);
Assert.Same(control.VerticalScroll, control.VerticalScroll);
Assert.False(control.VScroll);
Assert.Equal(0, control.Width);
Assert.False(control.IsHandleCreated);
}
[WinFormsFact]
public void ContainerControl_CreateParams_GetDefault_ReturnsExpected()
{
using SubContainerControl control = new();
CreateParams createParams = control.CreateParams;
Assert.Null(createParams.Caption);
Assert.Null(createParams.ClassName);
Assert.Equal(0x8, createParams.ClassStyle);
Assert.Equal(0x10000, createParams.ExStyle);
Assert.Equal(0, createParams.Height);
Assert.Equal(IntPtr.Zero, createParams.Parent);
Assert.Null(createParams.Param);
Assert.Equal(0x56010000, createParams.Style);
Assert.Equal(0, createParams.Width);
Assert.Equal(0, createParams.X);
Assert.Equal(0, createParams.Y);
Assert.Same(createParams, control.CreateParams);
Assert.False(control.IsHandleCreated);
}
[WinFormsFact]
public void ContainerControl_ActiveContainerControl_Set_GetReturnsExpected()
{
using ContainerControl control = new();
using Control child = new();
Control grandchild = new();
control.Controls.Add(child);
child.Controls.Add(grandchild);
control.ActiveControl = child;
Assert.Same(child, control.ActiveControl);
// Set same.
control.ActiveControl = child;
Assert.Same(child, control.ActiveControl);
// Set grandchild.
control.ActiveControl = grandchild;
Assert.Same(grandchild, control.ActiveControl);
// Set null.
control.ActiveControl = null;
Assert.Null(control.ActiveControl);
}
[WinFormsFact]
public void ContainerControl_ActiveContainerControl_SetInvalid_ThrowsArgumentException()
{
using ContainerControl control = new();
Assert.Throws<ArgumentException>("value", () => control.ActiveControl = control);
Assert.Throws<ArgumentException>("value", () => control.ActiveControl = new Control());
}
[WinFormsTheory]
[CommonMemberData(typeof(CommonTestHelper), nameof(CommonTestHelper.GetSizeTheoryData), TestIncludeType.NoNegatives)]
public void ContainerControl_AutoScaleDimensions_Set_GetReturnsExpected(Size value)
{
using ContainerControl control = new()
{
AutoScaleDimensions = value
};
Assert.Equal(value, control.AutoScaleDimensions);
Assert.False(control.IsHandleCreated);
// Set same.
control.AutoScaleDimensions = value;
Assert.Equal(value, control.AutoScaleDimensions);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[CommonMemberData(typeof(CommonTestHelper), nameof(CommonTestHelper.GetSizeTheoryData), TestIncludeType.NoNegatives)]
public void ContainerControl_AutoScaleDimensions_SetWithChildren_GetReturnsExpected(Size value)
{
using Control child = new();
using ContainerControl control = new();
control.Controls.Add(child);
control.AutoScaleDimensions = value;
Assert.Equal(value, control.AutoScaleDimensions);
// Set same.
control.AutoScaleDimensions = value;
Assert.Equal(value, control.AutoScaleDimensions);
}
[WinFormsTheory]
[CommonMemberData(typeof(CommonTestHelper), nameof(CommonTestHelper.GetSizeTheoryData), TestIncludeType.NoPositives)]
public void ContainerControl_AutoScaleDimensions_SetInvalid_ThrowsArgumentOutOfRangeException(Size value)
{
using ContainerControl control = new();
Assert.Throws<ArgumentOutOfRangeException>("value", () => control.AutoScaleDimensions = value);
}
[WinFormsTheory]
[EnumData<AutoScaleMode>]
public void ContainerControl_AutoScaleMode_Set_GetReturnsExpected(AutoScaleMode value)
{
using ContainerControl control = new()
{
AutoScaleMode = value
};
Assert.Equal(value, control.AutoScaleMode);
Assert.False(control.IsHandleCreated);
// Set same.
control.AutoScaleMode = value;
Assert.Equal(value, control.AutoScaleMode);
Assert.False(control.IsHandleCreated);
}
public static IEnumerable<object[]> AutoScaleMode_SetWithCustomOldValue_TestData()
{
yield return new object[] { AutoScaleMode.None, SizeF.Empty };
yield return new object[] { AutoScaleMode.Dpi, new SizeF(96, 96) };
yield return new object[] { AutoScaleMode.Inherit, SizeF.Empty };
}
[WinFormsTheory]
[MemberData(nameof(AutoScaleMode_SetWithCustomOldValue_TestData))]
public void ContainerControl_AutoScaleMode_SetWithCustomOldValue_ResetsAutoScaleDimensions(AutoScaleMode value, SizeF expectedAutoScaleDimensions)
{
using ContainerControl control = new()
{
AutoScaleDimensions = new SizeF(1, 2),
AutoScaleMode = AutoScaleMode.Font
};
control.AutoScaleMode = value;
Assert.Equal(value, control.AutoScaleMode);
Assert.Equal(expectedAutoScaleDimensions, control.AutoScaleDimensions);
Assert.Equal(expectedAutoScaleDimensions, control.CurrentAutoScaleDimensions);
Assert.False(control.IsHandleCreated);
// Set same.
control.AutoScaleMode = value;
Assert.Equal(value, control.AutoScaleMode);
Assert.Equal(expectedAutoScaleDimensions, control.AutoScaleDimensions);
Assert.Equal(expectedAutoScaleDimensions, control.CurrentAutoScaleDimensions);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[InvalidEnumData<AutoScaleMode>]
public void ContainerControl_AutoScaleMode_SetInvalid_ThrowsInvalidEnumArgumentException(AutoScaleMode value)
{
using ContainerControl control = new();
Assert.Throws<InvalidEnumArgumentException>("value", () => control.AutoScaleMode = value);
}
public static IEnumerable<object[]> AutoValidate_Set_TestData()
{
yield return new object[] { AutoValidate.Disable, AutoValidate.Disable };
yield return new object[] { AutoValidate.EnablePreventFocusChange, AutoValidate.EnablePreventFocusChange };
yield return new object[] { AutoValidate.EnableAllowFocusChange, AutoValidate.EnableAllowFocusChange };
yield return new object[] { AutoValidate.Inherit, AutoValidate.EnablePreventFocusChange };
}
[WinFormsTheory]
[MemberData(nameof(AutoValidate_Set_TestData))]
public void UserControl_AutoValidate_Set_GetReturnsExpected(AutoValidate value, AutoValidate expected)
{
using ContainerControl control = new()
{
AutoValidate = value
};
Assert.Equal(expected, control.AutoValidate);
Assert.False(control.IsHandleCreated);
// Set same.
control.AutoValidate = value;
Assert.Equal(expected, control.AutoValidate);
Assert.False(control.IsHandleCreated);
}
[WinFormsFact]
public void ContainerControl_AutoValidate_SetWithHandler_CallsAutoValidateChanged()
{
using ContainerControl control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(EventArgs.Empty, e);
callCount++;
};
control.AutoValidateChanged += handler;
// Set different.
control.AutoValidate = AutoValidate.EnablePreventFocusChange;
Assert.Equal(AutoValidate.EnablePreventFocusChange, control.AutoValidate);
Assert.Equal(1, callCount);
// Set same.
control.AutoValidate = AutoValidate.EnablePreventFocusChange;
Assert.Equal(AutoValidate.EnablePreventFocusChange, control.AutoValidate);
Assert.Equal(1, callCount);
// Set different.
control.AutoValidate = AutoValidate.EnableAllowFocusChange;
Assert.Equal(AutoValidate.EnableAllowFocusChange, control.AutoValidate);
Assert.Equal(2, callCount);
// Remove handler.
control.AutoValidateChanged -= handler;
control.AutoValidate = AutoValidate.Disable;
Assert.False(control.AutoSize);
Assert.Equal(2, callCount);
}
[WinFormsTheory]
[InvalidEnumData<AutoValidate>]
public void ContainerControl_AutoValidate_SetInvalidValue_ThrowsInvalidEnumArgumentException(AutoValidate value)
{
using ContainerControl control = new();
Assert.Throws<InvalidEnumArgumentException>("value", () => control.AutoValidate = value);
}
[WinFormsFact]
public void ContainerControl_BindingContext_Set_GetReturnsExpected()
{
BindingContext value = [];
using ContainerControl control = new()
{
BindingContext = value
};
Assert.Same(value, control.BindingContext);
Assert.False(control.IsHandleCreated);
// Set same.
control.BindingContext = value;
Assert.Same(value, control.BindingContext);
Assert.False(control.IsHandleCreated);
// Set null.
control.BindingContext = null;
Assert.NotNull(control.BindingContext);
Assert.False(control.IsHandleCreated);
}
[WinFormsFact]
public void ContainerControl_BindingContext_SetWithHandler_CallsBindingContextChanged()
{
using ContainerControl control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(EventArgs.Empty, e);
callCount++;
};
control.BindingContextChanged += handler;
// Set different.
BindingContext value1 = [];
control.BindingContext = value1;
Assert.Same(value1, control.BindingContext);
Assert.Equal(1, callCount);
// Set same.
control.BindingContext = value1;
Assert.Same(value1, control.BindingContext);
Assert.Equal(1, callCount);
// Set different.
BindingContext value2 = [];
control.BindingContext = value2;
Assert.Equal(value2, control.BindingContext);
Assert.Equal(2, callCount);
// Remove handler.
BindingContext value3 = [];
control.BindingContextChanged -= handler;
control.BindingContext = value3;
Assert.Same(value3, control.BindingContext);
Assert.Equal(2, callCount);
}
[WinFormsTheory]
[CommonMemberData(typeof(CommonTestHelperEx), nameof(CommonTestHelperEx.GetFontTheoryData))]
public void ContainerControl_Font_Set_GetReturnsExpected(Font value)
{
using SubContainerControl control = new()
{
Font = value
};
Assert.Equal(value ?? Control.DefaultFont, control.Font);
Assert.Equal(control.Font.Height, control.FontHeight);
Assert.False(control.IsHandleCreated);
// Set same.
control.Font = value;
Assert.Equal(value ?? Control.DefaultFont, control.Font);
Assert.Equal(control.Font.Height, control.FontHeight);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[CommonMemberData(typeof(CommonTestHelperEx), nameof(CommonTestHelperEx.GetFontTheoryData))]
public void ContainerControl_Font_SetWithAutoScaleModeFont_GetReturnsExpected(Font value)
{
using SubContainerControl control = new()
{
AutoScaleMode = AutoScaleMode.Font
};
control.Font = value;
Assert.Equal(value ?? Control.DefaultFont, control.Font);
Assert.Equal(control.Font.Height, control.FontHeight);
Assert.Equal(new Size(1, 1), control.AutoScaleFactor);
Assert.False(control.IsHandleCreated);
// Set same.
control.Font = value;
Assert.Equal(value ?? Control.DefaultFont, control.Font);
Assert.Equal(control.Font.Height, control.FontHeight);
Assert.Equal(new Size(1, 1), control.AutoScaleFactor);
Assert.False(control.IsHandleCreated);
}
[WinFormsFact]
public void ContainerControl_Font_SetWithHandler_CallsFontChanged()
{
using ContainerControl control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(EventArgs.Empty, e);
callCount++;
};
control.FontChanged += handler;
// Set different.
using Font font1 = new("Arial", 8.25f);
control.Font = font1;
Assert.Same(font1, control.Font);
Assert.Equal(1, callCount);
// Set same.
control.Font = font1;
Assert.Same(font1, control.Font);
Assert.Equal(1, callCount);
// Set different.
using var font2 = SystemFonts.DialogFont;
control.Font = font2;
Assert.Same(font2, control.Font);
Assert.Equal(2, callCount);
// Set null.
control.Font = null;
Assert.Equal(Control.DefaultFont, control.Font);
Assert.Equal(3, callCount);
// Remove handler.
control.FontChanged -= handler;
control.Font = font1;
Assert.Same(font1, control.Font);
Assert.Equal(3, callCount);
}
[WinFormsFact]
public void ContainerControl_GetAutoSizeMode_Invoke_ReturnsExpected()
{
using SubContainerControl control = new();
Assert.Equal(AutoSizeMode.GrowOnly, control.GetAutoSizeMode());
}
[WinFormsTheory]
[InlineData(0, true)]
[InlineData(SubContainerControl.ScrollStateAutoScrolling, false)]
[InlineData(SubContainerControl.ScrollStateFullDrag, false)]
[InlineData(SubContainerControl.ScrollStateHScrollVisible, false)]
[InlineData(SubContainerControl.ScrollStateUserHasScrolled, false)]
[InlineData(SubContainerControl.ScrollStateVScrollVisible, false)]
[InlineData(int.MaxValue, false)]
[InlineData((-1), false)]
public void ContainerControl_GetScrollState_Invoke_ReturnsExpected(int bit, bool expected)
{
using SubContainerControl control = new();
Assert.Equal(expected, control.GetScrollState(bit));
}
[WinFormsTheory]
[InlineData(ControlStyles.ContainerControl, true)]
[InlineData(ControlStyles.UserPaint, true)]
[InlineData(ControlStyles.Opaque, false)]
[InlineData(ControlStyles.ResizeRedraw, false)]
[InlineData(ControlStyles.FixedWidth, false)]
[InlineData(ControlStyles.FixedHeight, false)]
[InlineData(ControlStyles.StandardClick, true)]
[InlineData(ControlStyles.Selectable, true)]
[InlineData(ControlStyles.UserMouse, false)]
[InlineData(ControlStyles.SupportsTransparentBackColor, false)]
[InlineData(ControlStyles.StandardDoubleClick, true)]
[InlineData(ControlStyles.AllPaintingInWmPaint, false)]
[InlineData(ControlStyles.CacheText, false)]
[InlineData(ControlStyles.EnableNotifyMessage, false)]
[InlineData(ControlStyles.DoubleBuffer, false)]
[InlineData(ControlStyles.OptimizedDoubleBuffer, false)]
[InlineData(ControlStyles.UseTextForAccessibility, true)]
[InlineData((ControlStyles)0, true)]
[InlineData((ControlStyles)int.MaxValue, false)]
[InlineData((ControlStyles)(-1), false)]
public void ContainerControl_GetStyle_Invoke_ReturnsExpected(ControlStyles flag, bool expected)
{
using SubContainerControl control = new();
Assert.Equal(expected, control.GetStyle(flag));
// Call again to test caching.
Assert.Equal(expected, control.GetStyle(flag));
}
[WinFormsFact]
public void ContainerControl_GetTopLevel_Invoke_ReturnsExpected()
{
using SubContainerControl control = new();
Assert.False(control.GetTopLevel());
}
[WinFormsTheory]
[EnumData<AutoScaleMode>]
public void PerformAutoScale_InvokeWithoutChildren_Success(AutoScaleMode autoScaleMode)
{
using SubContainerControl control = new()
{
AutoScaleMode = autoScaleMode
};
control.PerformAutoScale();
}
[WinFormsTheory]
[EnumData<AutoScaleMode>]
public void PerformAutoScale_InvokeWithChildren_Success(AutoScaleMode autoScaleMode)
{
using Control child = new();
using SubContainerControl control = new()
{
AutoScaleMode = autoScaleMode
};
control.Controls.Add(child);
control.PerformAutoScale();
}
[WinFormsFact]
public void ContainerControl_CreateContainerControl_Invoke_CallsBindingContextChanged()
{
using ContainerControl control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(EventArgs.Empty, e);
callCount++;
};
control.BindingContextChanged += handler;
// Set different.
BindingContext value1 = [];
control.BindingContext = value1;
Assert.Same(value1, control.BindingContext);
Assert.Equal(1, callCount);
// Set same.
control.BindingContext = value1;
Assert.Same(value1, control.BindingContext);
Assert.Equal(1, callCount);
// Set different.
BindingContext value2 = [];
control.BindingContext = value2;
Assert.Equal(value2, control.BindingContext);
Assert.Equal(2, callCount);
// Remove handler.
BindingContext value3 = [];
control.BindingContextChanged -= handler;
control.BindingContext = value3;
Assert.Same(value3, control.BindingContext);
Assert.Equal(2, callCount);
}
[WinFormsFact]
public void ContainerControl_Dispose_Invoke_ResetsActiveControl()
{
using ContainerControl control = new();
using Control child = new();
control.Controls.Add(child);
control.ActiveControl = child;
control.Dispose();
Assert.Null(control.ActiveControl);
}
[WinFormsTheory]
[NewAndDefaultData<EventArgs>]
public void ContainerControl_OnAutoValidateChanged_Invoke_CallsAutoValidateChanged(EventArgs eventArgs)
{
using SubContainerControl control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.AutoValidateChanged += handler;
control.OnAutoValidateChanged(eventArgs);
Assert.Equal(1, callCount);
// Remove handler.
control.AutoValidateChanged -= handler;
control.OnAutoValidateChanged(eventArgs);
Assert.Equal(1, callCount);
}
[WinFormsFact]
public void UserControl_OnCreateControl_Invoke_Nop()
{
using SubContainerControl control = new();
int bindingContextChangedCallCount = 0;
control.BindingContextChanged += (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(EventArgs.Empty, e);
bindingContextChangedCallCount++;
};
control.OnCreateControl();
Assert.False(control.Created);
Assert.False(control.IsHandleCreated);
Assert.Equal(1, bindingContextChangedCallCount);
control.OnCreateControl();
Assert.False(control.Created);
Assert.False(control.IsHandleCreated);
Assert.Equal(2, bindingContextChangedCallCount);
}
[WinFormsTheory]
[NewAndDefaultData<EventArgs>]
public void ContainerControl_OnFontChanged_Invoke_CallsFontChanged(EventArgs eventArgs)
{
using SubContainerControl control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.FontChanged += handler;
control.OnFontChanged(eventArgs);
Assert.Equal(1, callCount);
// Remove handler.
control.FontChanged -= handler;
control.OnFontChanged(eventArgs);
Assert.Equal(1, callCount);
}
[WinFormsTheory]
[NewAndDefaultData<EventArgs>]
public void ContainerControl_OnFontChanged_InvokeWithAutoScaleModeFont_CallsFontChanged(EventArgs eventArgs)
{
using SubContainerControl control = new()
{
AutoScaleMode = AutoScaleMode.Font
};
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.FontChanged += handler;
control.OnFontChanged(eventArgs);
Assert.Equal(new Size(1, 1), control.AutoScaleFactor);
Assert.Equal(1, callCount);
// Remove handler.
control.FontChanged -= handler;
control.OnFontChanged(eventArgs);
Assert.Equal(new Size(1, 1), control.AutoScaleFactor);
Assert.Equal(1, callCount);
}
[WinFormsTheory]
[CommonMemberData(typeof(CommonTestHelperEx), nameof(CommonTestHelperEx.GetLayoutEventArgsTheoryData))]
public void ContainerControl_OnLayout_Invoke_CallsLayout(LayoutEventArgs eventArgs)
{
using SubContainerControl control = new();
int callCount = 0;
LayoutEventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.Layout += handler;
control.OnLayout(eventArgs);
Assert.Equal(1, callCount);
// Remove handler.
control.Layout -= handler;
control.OnLayout(eventArgs);
Assert.Equal(1, callCount);
}
[WinFormsTheory]
[NewAndDefaultData<EventArgs>]
public void ContainerControl_OnParentChanged_Invoke_CallsParentChanged(EventArgs eventArgs)
{
using SubContainerControl control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
control.ParentChanged += handler;
control.OnParentChanged(eventArgs);
Assert.Equal(1, callCount);
// Remove handler.
control.ParentChanged -= handler;
control.OnParentChanged(eventArgs);
Assert.Equal(1, callCount);
}
[WinFormsFact]
public void ContainerControl_UpdateDefaultButton_Invoke_Nop()
{
using SubContainerControl control = new();
control.UpdateDefaultButton();
control.UpdateDefaultButton();
}
[WinFormsFact]
public void ContainerControl_ValidateChildren_InvokeWithoutChildren_ReturnsTrue()
{
using ContainerControl control = new();
Assert.True(control.ValidateChildren());
}
public static IEnumerable<object[]> ValidateChildren_TestData()
{
yield return new object[] { true, 0 };
yield return new object[] { false, 1 };
}
[WinFormsTheory]
[MemberData(nameof(ValidateChildren_TestData))]
public void ContainerControl_ValidateChildren_InvokeWithChildren_ReturnsExpected(bool cancel, int expectedCallCount)
{
using ContainerControl control = new();
using Control child1 = new();
using Control grandchild1 = new();
child1.Controls.Add(grandchild1);
using ContainerControl child2 = new();
using Control grandchild2 = new();
child2.Controls.Add(grandchild2);
using TabControl child3 = new();
using TabPage grandchild3 = new();
child3.Controls.Add(grandchild3);
using SubControl child4 = new();
child4.SetStyle(ControlStyles.Selectable, false);
using SubControl child5 = new()
{
Enabled = false
};
using SubControl child6 = new()
{
Visible = false
};
using SubControl child7 = new()
{
TabStop = false
};
using SubControl child8 = new()
{
CausesValidation = false
};
control.Controls.Add(child1);
control.Controls.Add(child2);
control.Controls.Add(child3);
control.Controls.Add(child4);
control.Controls.Add(child5);
control.Controls.Add(child6);
control.Controls.Add(child7);
control.Controls.Add(child8);
int validatingCallCount = 0;
control.Validating += (sender, e) => validatingCallCount++;
int validatedCallCount = 0;
control.Validated += (sender, e) => validatedCallCount++;
int child1ValidatingCallCount = 0;
child1.Validating += (sender, e) =>
{
Assert.Same(child1, sender);
Assert.False(e.Cancel);
child1ValidatingCallCount++;
e.Cancel = cancel;
};
int child1ValidatedCallCount = 0;
child1.Validated += (sender, e) =>
{
Assert.Same(child1, sender);
Assert.Same(EventArgs.Empty, e);
child1ValidatedCallCount++;
};
int grandchild1ValidatingCallCount = 0;
grandchild1.Validating += (sender, e) =>
{
Assert.Same(grandchild1, sender);
Assert.False(e.Cancel);
grandchild1ValidatingCallCount++;
};
int grandchild1ValidatedCallCount = 0;
grandchild1.Validated += (sender, e) => grandchild1ValidatedCallCount++;
int child2ValidatingCallCount = 0;
child2.Validating += (sender, e) =>
{
Assert.Same(child2, sender);
Assert.False(e.Cancel);
child2ValidatingCallCount++;
};
int child2ValidatedCallCount = 0;
child2.Validated += (sender, e) =>
{
Assert.Same(child2, sender);
Assert.Same(EventArgs.Empty, e);
child2ValidatedCallCount++;
};
int grandchild2ValidatingCallCount = 0;
grandchild2.Validating += (sender, e) =>
{
Assert.Same(grandchild2, sender);
Assert.False(e.Cancel);
grandchild2ValidatingCallCount++;
};
int grandchild2ValidatedCallCount = 0;
grandchild2.Validated += (sender, e) =>
{
Assert.Same(grandchild2, sender);
Assert.Same(EventArgs.Empty, e);
grandchild2ValidatedCallCount++;
};
int child3ValidatingCallCount = 0;
child3.Validating += (sender, e) =>
{
Assert.Same(child3, sender);
Assert.False(e.Cancel);
child3ValidatingCallCount++;
};
int child3ValidatedCallCount = 0;
child3.Validated += (sender, e) =>
{
Assert.Same(child3, sender);
Assert.Same(EventArgs.Empty, e);
child3ValidatedCallCount++;
};
int grandchild3ValidatingCallCount = 0;
grandchild3.Validating += (sender, e) => grandchild3ValidatingCallCount++;
int grandchild3ValidatedCallCount = 0;
grandchild3.Validated += (sender, e) => grandchild3ValidatedCallCount++;
int child4ValidatingCallCount = 0;
child4.Validating += (sender, e) => child4ValidatingCallCount++;
int child4ValidatedCallCount = 0;
child4.Validated += (sender, e) => child4ValidatedCallCount++;
int child5ValidatingCallCount = 0;
child5.Validating += (sender, e) =>
{
Assert.Same(child5, sender);
Assert.False(e.Cancel);
child5ValidatingCallCount++;
};
int child5ValidatedCallCount = 0;
child5.Validated += (sender, e) =>
{
Assert.Same(child5, sender);
Assert.Same(EventArgs.Empty, e);
child5ValidatedCallCount++;
};
int child6ValidatingCallCount = 0;
child6.Validating += (sender, e) =>
{
Assert.Same(child6, sender);
Assert.False(e.Cancel);
child6ValidatingCallCount++;
};
int child6ValidatedCallCount = 0;
child6.Validated += (sender, e) =>
{
Assert.Same(child6, sender);
Assert.Same(EventArgs.Empty, e);
child6ValidatedCallCount++;
};
int child7ValidatingCallCount = 0;
child7.Validating += (sender, e) =>
{
Assert.Same(child7, sender);
Assert.False(e.Cancel);
child7ValidatingCallCount++;
};
int child7ValidatedCallCount = 0;
child7.Validated += (sender, e) =>
{
Assert.Same(child7, sender);
Assert.Same(EventArgs.Empty, e);
child7ValidatedCallCount++;
};
int child8ValidatingCallCount = 0;
child8.Validating += (sender, e) => child8ValidatingCallCount++;
int child8ValidatedCallCount = 0;
child8.Validated += (sender, e) => child8ValidatedCallCount++;
Assert.Equal(!cancel, control.ValidateChildren());
Assert.Equal(0, validatingCallCount);
Assert.Equal(0, validatedCallCount);
Assert.Equal(1, child1ValidatingCallCount);
Assert.Equal(expectedCallCount, child1ValidatedCallCount);
Assert.Equal(0, grandchild1ValidatingCallCount);
Assert.Equal(0, grandchild1ValidatedCallCount);
Assert.Equal(1, child2ValidatingCallCount);
Assert.Equal(1, child2ValidatedCallCount);
Assert.Equal(1, grandchild2ValidatingCallCount);
Assert.Equal(1, grandchild2ValidatedCallCount);
Assert.Equal(1, child3ValidatingCallCount);
Assert.Equal(1, child3ValidatedCallCount);
Assert.Equal(0, grandchild3ValidatingCallCount);
Assert.Equal(0, grandchild3ValidatedCallCount);
Assert.Equal(0, child4ValidatingCallCount);
Assert.Equal(0, child4ValidatedCallCount);
Assert.Equal(1, child5ValidatingCallCount);
Assert.Equal(1, child5ValidatedCallCount);
Assert.Equal(1, child6ValidatingCallCount);
Assert.Equal(1, child6ValidatedCallCount);
Assert.Equal(1, child7ValidatingCallCount);
Assert.Equal(1, child7ValidatedCallCount);
Assert.Equal(0, child8ValidatingCallCount);
Assert.Equal(0, child8ValidatedCallCount);
}
[WinFormsTheory]
[EnumData<ValidationConstraints>]
public void ContainerControl_ValidateChildren_InvokeValidationConstraintsWithoutChildren_ReturnsTrue(ValidationConstraints validationConstraints)
{
using ContainerControl control = new();
Assert.True(control.ValidateChildren(validationConstraints));
}
public static IEnumerable<object[]> ValidateChildren_ValidationConstraints_TestData()
{
yield return new object[] { ValidationConstraints.ImmediateChildren, true, 0, 0, 0, 1, 1, 1, 1 };
yield return new object[] { ValidationConstraints.ImmediateChildren, false, 1, 0, 0, 1, 1, 1, 1 };
yield return new object[] { ValidationConstraints.Selectable, true, 0, 1, 0, 0, 1, 1, 1 };
yield return new object[] { ValidationConstraints.Selectable, false, 1, 1, 0, 0, 1, 1, 1 };
yield return new object[] { ValidationConstraints.Enabled, true, 0, 1, 1, 1, 0, 1, 1 };
yield return new object[] { ValidationConstraints.Enabled, false, 1, 1, 1, 1, 0, 1, 1 };
yield return new object[] { ValidationConstraints.Visible, true, 0, 1, 0, 1, 1, 0, 1 };
yield return new object[] { ValidationConstraints.Visible, false, 1, 1, 0, 1, 1, 0, 1 };
yield return new object[] { ValidationConstraints.TabStop, true, 0, 1, 0, 1, 1, 1, 0 };
yield return new object[] { ValidationConstraints.TabStop, false, 1, 1, 0, 1, 1, 1, 0 };
yield return new object[] { ValidationConstraints.None, true, 0, 1, 1, 1, 1, 1, 1 };
yield return new object[] { ValidationConstraints.None, false, 1, 1, 1, 1, 1, 1, 1 };
yield return new object[] { ValidationConstraints.ImmediateChildren | ValidationConstraints.Selectable | ValidationConstraints.Enabled | ValidationConstraints.Visible | ValidationConstraints.TabStop, true, 0, 0, 0, 0, 0, 0, 0 };
yield return new object[] { ValidationConstraints.ImmediateChildren | ValidationConstraints.Selectable | ValidationConstraints.Enabled | ValidationConstraints.Visible | ValidationConstraints.TabStop, false, 1, 0, 0, 0, 0, 0, 0 };
}
[WinFormsTheory]
[MemberData(nameof(ValidateChildren_ValidationConstraints_TestData))]
public void ContainerControl_ValidateChildren_InvokeValidationConstraintsWithChildren_ReturnsExpected(ValidationConstraints validationConstraints, bool cancel, int expectedChild1CallCount, int expectedGrandchild2CallCount, int expectedGrandchild3CallCount, int expectedChild4CallCount, int expectedChild5CallCount, int expectedChild6CallCount, int expectedChild7CallCount)
{
using ContainerControl control = new();
using Control child1 = new();
using Control grandchild1 = new();
child1.Controls.Add(grandchild1);
using ContainerControl child2 = new();
using Control grandchild2 = new();
child2.Controls.Add(grandchild2);
using TabControl child3 = new();
using TabPage grandchild3 = new();
child3.Controls.Add(grandchild3);
using SubControl child4 = new();
child4.SetStyle(ControlStyles.Selectable, false);
using SubControl child5 = new()
{
Enabled = false
};
using SubControl child6 = new()
{
Visible = false
};
using SubControl child7 = new()
{
TabStop = false
};
using SubControl child8 = new()
{
CausesValidation = false
};
control.Controls.Add(child1);
control.Controls.Add(child2);
control.Controls.Add(child3);
control.Controls.Add(child4);
control.Controls.Add(child5);
control.Controls.Add(child6);
control.Controls.Add(child7);
control.Controls.Add(child8);
int validatingCallCount = 0;
control.Validating += (sender, e) => validatingCallCount++;
int validatedCallCount = 0;
control.Validated += (sender, e) => validatedCallCount++;
int child1ValidatingCallCount = 0;
child1.Validating += (sender, e) =>
{
Assert.Same(child1, sender);
Assert.False(e.Cancel);
child1ValidatingCallCount++;
e.Cancel = cancel;
};
int child1ValidatedCallCount = 0;
child1.Validated += (sender, e) =>
{
Assert.Same(child1, sender);
Assert.Same(EventArgs.Empty, e);
child1ValidatedCallCount++;
};
int grandchild1ValidatingCallCount = 0;
grandchild1.Validating += (sender, e) =>
{
Assert.Same(grandchild1, sender);
Assert.False(e.Cancel);
grandchild1ValidatingCallCount++;
};
int grandchild1ValidatedCallCount = 0;
grandchild1.Validated += (sender, e) => grandchild1ValidatedCallCount++;
int child2ValidatingCallCount = 0;
child2.Validating += (sender, e) =>
{
Assert.Same(child2, sender);
Assert.False(e.Cancel);
child2ValidatingCallCount++;
};
int child2ValidatedCallCount = 0;
child2.Validated += (sender, e) =>
{
Assert.Same(child2, sender);
Assert.Same(EventArgs.Empty, e);
child2ValidatedCallCount++;
};
int grandchild2ValidatingCallCount = 0;
grandchild2.Validating += (sender, e) =>
{
Assert.Same(grandchild2, sender);
Assert.False(e.Cancel);
grandchild2ValidatingCallCount++;
};
int grandchild2ValidatedCallCount = 0;
grandchild2.Validated += (sender, e) =>
{
Assert.Same(grandchild2, sender);
Assert.Same(EventArgs.Empty, e);
grandchild2ValidatedCallCount++;
};
int child3ValidatingCallCount = 0;
child3.Validating += (sender, e) =>
{
Assert.Same(child3, sender);
Assert.False(e.Cancel);
child3ValidatingCallCount++;
};
int child3ValidatedCallCount = 0;
child3.Validated += (sender, e) =>
{
Assert.Same(child3, sender);
Assert.Same(EventArgs.Empty, e);
child3ValidatedCallCount++;
};
int grandchild3ValidatingCallCount = 0;
grandchild3.Validating += (sender, e) => grandchild3ValidatingCallCount++;
int grandchild3ValidatedCallCount = 0;
grandchild3.Validated += (sender, e) => grandchild3ValidatedCallCount++;
int child4ValidatingCallCount = 0;
child4.Validating += (sender, e) => child4ValidatingCallCount++;
int child4ValidatedCallCount = 0;
child4.Validated += (sender, e) => child4ValidatedCallCount++;
int child5ValidatingCallCount = 0;
child5.Validating += (sender, e) =>
{
Assert.Same(child5, sender);
Assert.False(e.Cancel);
child5ValidatingCallCount++;
};
int child5ValidatedCallCount = 0;
child5.Validated += (sender, e) =>
{
Assert.Same(child5, sender);
Assert.Same(EventArgs.Empty, e);
child5ValidatedCallCount++;
};
int child6ValidatingCallCount = 0;
child6.Validating += (sender, e) =>
{
Assert.Same(child6, sender);
Assert.False(e.Cancel);
child6ValidatingCallCount++;
};
int child6ValidatedCallCount = 0;
child6.Validated += (sender, e) =>
{
Assert.Same(child6, sender);
Assert.Same(EventArgs.Empty, e);
child6ValidatedCallCount++;
};
int child7ValidatingCallCount = 0;
child7.Validating += (sender, e) =>
{
Assert.Same(child7, sender);
Assert.False(e.Cancel);
child7ValidatingCallCount++;
};
int child7ValidatedCallCount = 0;
child7.Validated += (sender, e) =>
{
Assert.Same(child7, sender);
Assert.Same(EventArgs.Empty, e);
child7ValidatedCallCount++;
};
int child8ValidatingCallCount = 0;
child8.Validating += (sender, e) => child8ValidatingCallCount++;
int child8ValidatedCallCount = 0;
child8.Validated += (sender, e) => child8ValidatedCallCount++;
Assert.Equal(!cancel, control.ValidateChildren(validationConstraints));
Assert.Equal(0, validatingCallCount);
Assert.Equal(0, validatedCallCount);
Assert.Equal(1, child1ValidatingCallCount);
Assert.Equal(expectedChild1CallCount, child1ValidatedCallCount);
Assert.Equal(0, grandchild1ValidatingCallCount);
Assert.Equal(0, grandchild1ValidatedCallCount);
Assert.Equal(1, child2ValidatingCallCount);
Assert.Equal(1, child2ValidatedCallCount);
Assert.Equal(expectedGrandchild2CallCount, grandchild2ValidatingCallCount);
Assert.Equal(expectedGrandchild2CallCount, grandchild2ValidatedCallCount);
Assert.Equal(1, child3ValidatingCallCount);
Assert.Equal(1, child3ValidatedCallCount);
Assert.Equal(expectedGrandchild3CallCount, grandchild3ValidatingCallCount);
Assert.Equal(expectedGrandchild3CallCount, grandchild3ValidatedCallCount);
Assert.Equal(expectedChild4CallCount, child4ValidatingCallCount);
Assert.Equal(expectedChild4CallCount, child4ValidatedCallCount);
Assert.Equal(expectedChild5CallCount, child5ValidatingCallCount);
Assert.Equal(expectedChild5CallCount, child5ValidatedCallCount);
Assert.Equal(expectedChild6CallCount, child6ValidatingCallCount);
Assert.Equal(expectedChild6CallCount, child6ValidatedCallCount);
Assert.Equal(expectedChild7CallCount, child7ValidatingCallCount);
Assert.Equal(expectedChild7CallCount, child7ValidatedCallCount);
Assert.Equal(0, child8ValidatingCallCount);
Assert.Equal(0, child8ValidatedCallCount);
}
[WinFormsTheory]
[InlineData((ValidationConstraints)(-1))]
[InlineData((ValidationConstraints)(0x20))]
public void ContainerControl_ValidateChildren_InvalidValidationConstraints_ThrowsInvalidEnumArgumentException(ValidationConstraints validationConstraints)
{
using ContainerControl control = new();
Assert.Throws<InvalidEnumArgumentException>("validationConstraints", () => control.ValidateChildren(validationConstraints));
}
[WinFormsFact]
public void ContainerControl_WndProc_InvokeMouseHoverWithHandle_Success()
{
using SubContainerControl 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++;
int callCount = 0;
control.MouseHover += (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(EventArgs.Empty, e);
callCount++;
};
Message m = new()
{
Msg = (int)PInvoke.WM_MOUSEHOVER,
Result = 250
};
control.WndProc(ref m);
Assert.Equal(IntPtr.Zero, m.Result);
Assert.Equal(1, callCount);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
[WinFormsFact]
public void ContainerControl_WndProc_InvokeSetFocusWithHandle_Success()
{
using Control child1 = new();
using Control child2 = new();
using SubContainerControl control = new();
control.Controls.Add(child1);
control.Controls.Add(child2);
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++;
Message m = new()
{
Msg = (int)PInvoke.WM_SETFOCUS,
Result = 250
};
control.WndProc(ref m);
Assert.Equal(IntPtr.Zero, m.Result);
Assert.Null(control.ActiveControl);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
[WinFormsFact]
public void ContainerControl_WndProc_InvokeSetFocusWithActiveControlWithHandle_Success()
{
using Control child1 = new();
using Control child2 = new();
using SubContainerControl control = new();
control.Controls.Add(child1);
control.Controls.Add(child2);
control.ActiveControl = child2;
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++;
Message m = new()
{
Msg = (int)PInvoke.WM_SETFOCUS,
Result = 250
};
control.WndProc(ref m);
Assert.Equal(250, m.Result);
Assert.Same(child2, control.ActiveControl);
Assert.True(control.IsHandleCreated);
Assert.Equal(0, invalidatedCallCount);
Assert.Equal(0, styleChangedCallCount);
Assert.Equal(0, createdCallCount);
}
[WinFormsFact]
public void ContainerControl_OnMove_HidesToolTip_IfToolTipIsShown()
{
using Control control = new();
using SubContainerControl container = new();
container.Controls.Add(control);
container.SetTopLevel();
container.CreateControl();
// Simulate that a keyboard toolTip is shown
KeyboardToolTipStateMachine instance = KeyboardToolTipStateMachine.Instance;
instance.TestAccessor().Dynamic._currentTool = control;
instance.TestAccessor().Dynamic._currentState = (byte)2;
container.MoveContainer();
IKeyboardToolTip currentTool = instance.TestAccessor().Dynamic._currentTool;
string currentState = instance.TestAccessor().Dynamic._currentState.ToString();
Assert.Null(currentTool);
Assert.Equal("Hidden", currentState);
Assert.True(control.IsHandleCreated);
Assert.True(container.IsHandleCreated);
}
[WinFormsFact]
public void ContainerControl_OnResize_HidesToolTip_IfToolTipIsShown()
{
using Control control = new();
using SubContainerControl container = new();
container.Controls.Add(control);
container.SetTopLevel();
container.CreateControl();
// Simulate that a keyboard toolTip is shown
KeyboardToolTipStateMachine instance = KeyboardToolTipStateMachine.Instance;
instance.TestAccessor().Dynamic._currentTool = control;
instance.TestAccessor().Dynamic._currentState = (byte)2;
container.ResizeContainer();
IKeyboardToolTip currentTool = instance.TestAccessor().Dynamic._currentTool;
string currentState = instance.TestAccessor().Dynamic._currentState.ToString();
Assert.Null(currentTool);
Assert.Equal("Hidden", currentState);
Assert.True(control.IsHandleCreated);
Assert.True(container.IsHandleCreated);
}
[WinFormsFact]
public void ContainerControl_OnResize_DoNothing_IfInstanceIsNotCreated()
{
using Control control = new();
using SubContainerControl container = new();
container.Controls.Add(control);
container.CreateControl();
container.ResizeContainer();
object instance = typeof(KeyboardToolTipStateMachine).GetField("s_instance", BindingFlags.Static | BindingFlags.NonPublic).GetValue(null);
Assert.Null(instance);
Assert.True(control.IsHandleCreated);
Assert.True(container.IsHandleCreated);
}
[WinFormsFact]
public void ContainerControl_OnMove_DoNothing_IfInstanceIsNotCreated()
{
using Control control = new();
using SubContainerControl container = new();
container.Controls.Add(control);
container.CreateControl();
container.MoveContainer();
object instance = typeof(KeyboardToolTipStateMachine).GetField("s_instance", BindingFlags.Static | BindingFlags.NonPublic).GetValue(null);
Assert.Null(instance);
Assert.True(control.IsHandleCreated);
Assert.True(container.IsHandleCreated);
}
private class SubControl : Control
{
public new void SetStyle(ControlStyles flag, bool value) => base.SetStyle(flag, value);
}
public class SubContainerControl : ContainerControl
{
public new const int ScrollStateAutoScrolling = ScrollableControl.ScrollStateAutoScrolling;
public new const int ScrollStateHScrollVisible = ScrollableControl.ScrollStateHScrollVisible;
public new const int ScrollStateVScrollVisible = ScrollableControl.ScrollStateVScrollVisible;
public new const int ScrollStateUserHasScrolled = ScrollableControl.ScrollStateUserHasScrolled;
public new const int ScrollStateFullDrag = ScrollableControl.ScrollStateFullDrag;
public new SizeF AutoScaleFactor => base.AutoScaleFactor;
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 void MoveContainer() => base.OnMove(EventArgs.Empty);
public void ResizeContainer() => base.OnResize(EventArgs.Empty);
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 bool HScroll
{
get => base.HScroll;
set => base.HScroll = value;
}
public new bool VScroll
{
get => base.VScroll;
set => base.VScroll = value;
}
public new AutoSizeMode GetAutoSizeMode() => base.GetAutoSizeMode();
public new bool GetScrollState(int bit) => base.GetScrollState(bit);
public new bool GetStyle(ControlStyles flag) => base.GetStyle(flag);
public new bool GetTopLevel() => base.GetTopLevel();
public new void OnAutoValidateChanged(EventArgs e) => base.OnAutoValidateChanged(e);
public new void OnCreateControl() => base.OnCreateControl();
public new void OnFontChanged(EventArgs e) => base.OnFontChanged(e);
public new void OnLayout(LayoutEventArgs e) => base.OnLayout(e);
public new void OnParentChanged(EventArgs e) => base.OnParentChanged(e);
public void SetTopLevel() => SetTopLevel(true);
public new void UpdateDefaultButton() => base.UpdateDefaultButton();
public new void WndProc(ref Message m) => base.WndProc(ref m);
}
}
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