|
// 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 Point = System.Drawing.Point;
using Size = System.Drawing.Size;
namespace System.Windows.Forms.Tests;
public class VScrollBarTests
{
[WinFormsFact]
public void VScrollBar_Ctor_Default()
{
using SubVScrollBar 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(Control.DefaultBackColor, control.BackColor);
Assert.Null(control.BackgroundImage);
Assert.Equal(ImageLayout.Tile, control.BackgroundImageLayout);
Assert.Null(control.BindingContext);
Assert.Equal(0, control.Bounds.X);
Assert.Equal(0, control.Bounds.Y);
Assert.True(control.Bounds.Width > 0);
Assert.True(control.Bounds.Height > 0);
Assert.True(control.Bottom > 0);
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(0, control.ClientRectangle.X);
Assert.Equal(0, control.ClientRectangle.Y);
Assert.True(control.ClientRectangle.Width > 0);
Assert.True(control.ClientRectangle.Height > 0);
Assert.True(control.ClientSize.Width > 0);
Assert.True(control.ClientSize.Height > 0);
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.Disable, control.DefaultImeMode);
Assert.Equal(Padding.Empty, control.DefaultMargin);
Assert.Equal(Size.Empty, control.DefaultMaximumSize);
Assert.Equal(Size.Empty, control.DefaultMinimumSize);
Assert.Equal(Padding.Empty, control.DefaultPadding);
Assert.True(control.DefaultSize.Width > 0);
Assert.True(control.DefaultSize.Height > 0);
Assert.False(control.DesignMode);
Assert.Equal(0, control.DisplayRectangle.X);
Assert.Equal(0, control.DisplayRectangle.Y);
Assert.True(control.DisplayRectangle.Width > 0);
Assert.True(control.DisplayRectangle.Height > 0);
Assert.Equal(DockStyle.None, control.Dock);
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.True(control.Height > 0);
Assert.Equal(ImeMode.Disable, control.ImeMode);
Assert.Equal(ImeMode.Disable, control.ImeModeBase);
Assert.False(control.IsAccessible);
Assert.False(control.IsMirrored);
Assert.Equal(10, control.LargeChange);
Assert.NotNull(control.LayoutEngine);
Assert.Same(control.LayoutEngine, control.LayoutEngine);
Assert.Equal(0, control.Left);
Assert.Equal(Point.Empty, control.Location);
Assert.Equal(Padding.Empty, control.Margin);
Assert.Equal(100, control.Maximum);
Assert.Equal(Size.Empty, control.MaximumSize);
Assert.Equal(0, control.Minimum);
Assert.Equal(Size.Empty, control.MinimumSize);
Assert.Equal(Padding.Empty, control.Padding);
Assert.Null(control.Parent);
Assert.True(control.PreferredSize.Width > 0);
Assert.True(control.PreferredSize.Height > 0);
Assert.Equal("Microsoft\u00AE .NET", control.ProductName);
Assert.False(control.RecreatingHandle);
Assert.Null(control.Region);
Assert.False(control.ResizeRedraw);
Assert.True(control.Right > 0);
Assert.Equal(RightToLeft.No, control.RightToLeft);
Assert.True(control.ScaleScrollBarForDpiChange);
Assert.True(control.ShowFocusCues);
Assert.True(control.ShowKeyboardCues);
Assert.Null(control.Site);
Assert.True(control.Size.Width > 0);
Assert.True(control.Size.Height > 0);
Assert.Equal(1, control.SmallChange);
Assert.Equal(0, control.TabIndex);
Assert.False(control.TabStop);
Assert.Empty(control.Text);
Assert.Equal(0, control.Top);
Assert.Null(control.TopLevelControl);
Assert.False(control.UseWaitCursor);
Assert.Equal(0, control.Value);
Assert.True(control.Visible);
Assert.True(control.Width > 0);
Assert.False(control.IsHandleCreated);
}
[WinFormsFact]
public void VScrollBar_CreateParams_GetDefault_ReturnsExpected()
{
using SubVScrollBar control = new();
CreateParams createParams = control.CreateParams;
Assert.Null(createParams.Caption);
Assert.Equal("ScrollBar", createParams.ClassName);
Assert.Equal(0x8, createParams.ClassStyle);
Assert.Equal(0, createParams.ExStyle);
Assert.True(createParams.Height > 0);
Assert.Equal(IntPtr.Zero, createParams.Parent);
Assert.Null(createParams.Param);
Assert.Equal(0x56000001, createParams.Style);
Assert.True(createParams.Width > 0);
Assert.Equal(0, createParams.X);
Assert.Equal(0, createParams.Y);
Assert.Same(createParams, control.CreateParams);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[EnumData<RightToLeft>]
[InvalidEnumData<RightToLeft>]
public void VScrollBar_RightToLeft_Set_GetReturnsNo(RightToLeft value)
{
using SubVScrollBar control = new()
{
RightToLeft = value
};
Assert.Equal(RightToLeft.No, control.RightToLeft);
// Set same.
control.RightToLeft = value;
Assert.Equal(RightToLeft.No, control.RightToLeft);
}
[WinFormsFact]
public void VScrollBar_RightToLeft_SetWithHandler_DoesNotCallRightToLeftChanged()
{
using SubVScrollBar control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
Assert.Same(control, sender);
Assert.Same(EventArgs.Empty, e);
callCount++;
};
control.RightToLeftChanged += handler;
// Set different.
control.RightToLeft = RightToLeft.Yes;
Assert.Equal(RightToLeft.No, control.RightToLeft);
Assert.Equal(0, callCount);
// Set same.
control.RightToLeft = RightToLeft.Yes;
Assert.Equal(RightToLeft.No, control.RightToLeft);
Assert.Equal(0, callCount);
// Set different.
control.RightToLeft = RightToLeft.Inherit;
Assert.Equal(RightToLeft.No, control.RightToLeft);
Assert.Equal(0, callCount);
// Remove handler.
control.RightToLeftChanged -= handler;
control.RightToLeft = RightToLeft.Yes;
Assert.Equal(RightToLeft.No, control.RightToLeft);
Assert.Equal(0, callCount);
}
[WinFormsFact]
public void VScrollBar_GetAutoSizeMode_Invoke_ReturnsExpected()
{
using SubVScrollBar control = new();
Assert.Equal(AutoSizeMode.GrowOnly, control.GetAutoSizeMode());
}
[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 VScrollBar_GetStyle_Invoke_ReturnsExpected(ControlStyles flag, bool expected)
{
using SubVScrollBar control = new();
Assert.Equal(expected, control.GetStyle(flag));
// Call again to test caching.
Assert.Equal(expected, control.GetStyle(flag));
}
[WinFormsFact]
public void VScrollBar_GetTopLevel_Invoke_ReturnsExpected()
{
using SubVScrollBar control = new();
Assert.False(control.GetTopLevel());
}
private class SubVScrollBar : VScrollBar
{
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();
}
}
|