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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.Windows.Forms.TestUtilities;
using Windows.Win32.System.Variant;
using Windows.Win32.UI.Accessibility;
using Point = System.Drawing.Point;
using Size = System.Drawing.Size;
namespace System.Windows.Forms.Tests;
public class CheckBoxTests : AbstractButtonBaseTests
{
[WinFormsFact]
public void CheckBox_Ctor_Default()
{
using SubCheckBox 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(Appearance.Normal, control.Appearance);
Assert.Equal(AnchorStyles.Top | AnchorStyles.Left, control.Anchor);
Assert.True(control.AutoCheck);
Assert.False(control.AutoEllipsis);
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(24, control.Bottom);
Assert.Equal(new Rectangle(0, 0, 104, 24), 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(ContentAlignment.MiddleLeft, control.CheckAlign);
Assert.False(control.Checked);
Assert.Equal(CheckState.Unchecked, control.CheckState);
Assert.Equal(new Size(104, 24), control.ClientSize);
Assert.Equal(new Rectangle(0, 0, 104, 24), 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.Disable, 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(104, 24), control.DefaultSize);
Assert.False(control.DesignMode);
Assert.Equal(new Rectangle(0, 0, 104, 24), control.DisplayRectangle);
Assert.Equal(DockStyle.None, control.Dock);
Assert.True(control.DoubleBuffered);
Assert.True(control.Enabled);
Assert.NotNull(control.Events);
Assert.Same(control.Events, control.Events);
Assert.NotNull(control.FlatAppearance);
Assert.Same(control.FlatAppearance, control.FlatAppearance);
Assert.Equal(FlatStyle.Standard, control.FlatStyle);
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(24, control.Height);
Assert.Null(control.Image);
Assert.Equal(ContentAlignment.MiddleCenter, control.ImageAlign);
Assert.Equal(-1, control.ImageIndex);
Assert.Empty(control.ImageKey);
Assert.Null(control.ImageList);
Assert.Equal(ImeMode.Disable, control.ImeMode);
Assert.Equal(ImeMode.Disable, control.ImeModeBase);
Assert.False(control.IsAccessible);
Assert.False(control.IsDefault);
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("Microsoft\u00AE .NET", control.ProductName);
Assert.True(control.PreferredSize.Width > 0);
Assert.True(control.PreferredSize.Height > 0);
Assert.False(control.RecreatingHandle);
Assert.Null(control.Region);
Assert.True(control.ResizeRedraw);
Assert.Equal(104, control.Right);
Assert.Equal(RightToLeft.No, control.RightToLeft);
Assert.True(control.ShowFocusCues);
Assert.True(control.ShowKeyboardCues);
Assert.Null(control.Site);
Assert.Equal(new Size(104, 24), control.Size);
Assert.Equal(0, control.TabIndex);
Assert.True(control.TabStop);
Assert.Empty(control.Text);
Assert.Equal(ContentAlignment.MiddleLeft, control.TextAlign);
Assert.Equal(TextImageRelation.Overlay, control.TextImageRelation);
Assert.False(control.ThreeState);
Assert.Equal(0, control.Top);
Assert.Null(control.TopLevelControl);
Assert.True(control.UseMnemonic);
Assert.True(control.UseCompatibleTextRendering);
Assert.True(control.UseVisualStyleBackColor);
Assert.False(control.UseWaitCursor);
Assert.True(control.Visible);
Assert.Equal(104, control.Width);
Assert.False(control.IsHandleCreated);
}
[WinFormsFact]
public void CheckBox_CreateParams_GetDefault_ReturnsExpected()
{
using SubCheckBox control = new();
CreateParams createParams = control.CreateParams;
Assert.Null(createParams.Caption);
Assert.Equal("Button", createParams.ClassName);
Assert.Equal(0x8, createParams.ClassStyle);
Assert.Equal(0, createParams.ExStyle);
Assert.Equal(24, createParams.Height);
Assert.Equal(IntPtr.Zero, createParams.Parent);
Assert.Null(createParams.Param);
Assert.Equal(0x5601000B, createParams.Style);
Assert.Equal(104, createParams.Width);
Assert.Equal(0, createParams.X);
Assert.Equal(0, createParams.Y);
Assert.Same(createParams, control.CreateParams);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[EnumData<Appearance>]
public void CheckBox_Appearance_Set_GetReturnsExpected(Appearance value)
{
using CheckBox control = new()
{
Appearance = value
};
Assert.Equal(value, control.Appearance);
Assert.False(control.IsHandleCreated);
// Set same.
control.Appearance = value;
Assert.Equal(value, control.Appearance);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[InvalidEnumData<Appearance>]
public void CheckBox_Appearance_SetInvalidValue_ThrowsInvalidEnumArgumentException(Appearance value)
{
using CheckBox control = new();
Assert.Throws<InvalidEnumArgumentException>("value", () => control.Appearance = value);
}
[WinFormsTheory]
[BoolData]
public void CheckBox_AutoCheck(bool expected)
{
using CheckBox box = new()
{
AutoCheck = expected
};
Assert.Equal(expected, box.AutoCheck);
}
[WinFormsTheory]
[EnumData<ContentAlignment>]
public void CheckBox_CheckAlign_Set_GetReturnsExpected(ContentAlignment value)
{
using CheckBox control = new()
{
CheckAlign = value
};
Assert.Equal(value, control.CheckAlign);
Assert.False(control.IsHandleCreated);
// Set same.
control.CheckAlign = value;
Assert.Equal(value, control.CheckAlign);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[InvalidEnumData<ContentAlignment>]
public void CheckBox_CheckAlign_SetInvalidValue_ThrowsInvalidEnumArgumentException(ContentAlignment value)
{
using CheckBox control = new();
Assert.Throws<InvalidEnumArgumentException>("value", () => control.CheckAlign = value);
}
[WinFormsTheory]
[InlineData(true, CheckState.Checked)]
[InlineData(false, CheckState.Unchecked)]
public void CheckBox_CheckedGetSet(bool sent, CheckState expected)
{
using CheckBox box = new()
{
Checked = sent
};
Assert.Equal(expected, box.CheckState);
}
[WinFormsTheory]
[InlineData(true, CheckState.Checked, true, CheckState.Indeterminate)]
[InlineData(true, CheckState.Unchecked, true, CheckState.Checked)]
[InlineData(true, CheckState.Indeterminate, false, CheckState.Unchecked)]
[InlineData(false, CheckState.Checked, false, CheckState.Unchecked)]
[InlineData(false, CheckState.Unchecked, true, CheckState.Checked)]
[InlineData(false, CheckState.Indeterminate, false, CheckState.Unchecked)]
public void CheckBox_OnClick_AutoCheck_SetCorrectCheckState(bool threeState, CheckState checkState, bool expectedChecked, CheckState expectedCheckState)
{
using SubCheckBox box = new()
{
AutoCheck = true,
ThreeState = threeState,
CheckState = checkState
};
box.OnClick(EventArgs.Empty);
Assert.Equal(expectedChecked, box.Checked);
Assert.Equal(expectedCheckState, box.CheckState);
}
[WinFormsTheory]
[InlineData(true, CheckState.Checked, true)]
[InlineData(true, CheckState.Unchecked, false)]
[InlineData(true, CheckState.Indeterminate, true)]
[InlineData(false, CheckState.Checked, true)]
[InlineData(false, CheckState.Unchecked, false)]
[InlineData(false, CheckState.Indeterminate, true)]
public void CheckBox_OnClick_AutoCheckFalse_DoesNotChangeCheckState(bool threeState, CheckState expectedCheckState, bool expectedChecked)
{
using SubCheckBox box = new()
{
AutoCheck = false,
ThreeState = threeState,
CheckState = expectedCheckState
};
box.OnClick(EventArgs.Empty);
Assert.Equal(expectedChecked, box.Checked);
Assert.Equal(expectedCheckState, box.CheckState);
}
[WinFormsTheory]
[EnumData<CheckState>]
public void CheckBox_CheckState_Set_GetReturnsExpected(CheckState value)
{
using CheckBox control = new()
{
CheckState = value
};
Assert.Equal(value, control.CheckState);
Assert.False(control.IsHandleCreated);
// Set same.
control.CheckState = value;
Assert.Equal(value, control.CheckState);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[InvalidEnumData<CheckState>]
public void CheckBox_CheckState_SetInvalidValue_ThrowsInvalidEnumArgumentException(CheckState value)
{
using CheckBox control = new();
Assert.Throws<InvalidEnumArgumentException>("value", () => control.CheckState = value);
}
[WinFormsTheory]
[NewAndDefaultData<EventArgs>]
public void CheckBox_OnCheckedChanged_Invoke_CallsCheckedChanged(EventArgs eventArgs)
{
using SubCheckBox control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
sender.Should().BeSameAs(control);
eventArgs.Should().BeSameAs(e);
callCount++;
};
// Call with handler.
control.CheckedChanged += handler;
control.OnCheckedChanged(eventArgs);
callCount.Should().Be(1);
// Remove handler.
control.CheckedChanged -= handler;
control.OnCheckedChanged(eventArgs);
callCount.Should().Be(1);
}
[WinFormsTheory]
[NewAndDefaultData<EventArgs>]
public void CheckBox_OnCheckedChanged_InvokeWithHandle_CallsCheckedChanged(EventArgs eventArgs)
{
using SubCheckBox control = new();
control.Handle.Should().NotBe(IntPtr.Zero);
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) =>
{
sender.Should().BeSameAs(control);
eventArgs.Should().BeSameAs(e);
callCount++;
};
// Call with handler.
control.CheckedChanged += handler;
control.OnCheckedChanged(eventArgs);
callCount.Should().Be(1);
control.Handle.Should().NotBe(IntPtr.Zero);
control.IsHandleCreated.Should().BeTrue();
invalidatedCallCount.Should().Be(0);
styleChangedCallCount.Should().Be(0);
createdCallCount.Should().Be(0);
// Remove handler.
control.CheckedChanged -= handler;
control.OnCheckedChanged(eventArgs);
callCount.Should().Be(1);
control.Handle.Should().NotBe(IntPtr.Zero);
control.IsHandleCreated.Should().BeTrue();
invalidatedCallCount.Should().Be(0);
styleChangedCallCount.Should().Be(0);
createdCallCount.Should().Be(0);
}
[WinFormsTheory]
[NewAndDefaultData<EventArgs>]
public void CheckBox_OnCheckStateChanged_Invoke_CallsCheckStateChanged(EventArgs eventArgs)
{
using SubCheckBox control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
sender.Should().BeSameAs(control);
eventArgs.Should().BeSameAs(e);
callCount++;
};
// Call with handler.
control.CheckStateChanged += handler;
control.OnCheckStateChanged(eventArgs);
callCount.Should().Be(1);
// Remove handler.
control.CheckStateChanged -= handler;
control.OnCheckStateChanged(eventArgs);
callCount.Should().Be(1);
}
[WinFormsTheory]
[NewAndDefaultData<EventArgs>]
public void CheckBox_OnCheckStateChanged_InvokeWithHandle_CallsCheckStateChanged(EventArgs eventArgs)
{
using SubCheckBox control = new();
control.Handle.Should().NotBe(IntPtr.Zero);
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) =>
{
sender.Should().BeSameAs(control);
eventArgs.Should().BeSameAs(e);
callCount++;
};
// Call with handler.
control.CheckStateChanged += handler;
control.OnCheckStateChanged(eventArgs);
callCount.Should().Be(1);
control.Handle.Should().NotBe(IntPtr.Zero);
control.IsHandleCreated.Should().BeTrue();
invalidatedCallCount.Should().Be(1);
styleChangedCallCount.Should().Be(0);
createdCallCount.Should().Be(0);
// Remove handler.
control.CheckStateChanged -= handler;
control.OnCheckStateChanged(eventArgs);
callCount.Should().Be(1);
control.Handle.Should().NotBe(IntPtr.Zero);
control.IsHandleCreated.Should().BeTrue();
invalidatedCallCount.Should().Be(2);
styleChangedCallCount.Should().Be(0);
createdCallCount.Should().Be(0);
}
[WinFormsTheory]
[EnumData<ContentAlignment>]
public void CheckBox_TextAlign_Set_GetReturnsExpected(ContentAlignment value)
{
using CheckBox control = new()
{
TextAlign = value
};
Assert.Equal(value, control.TextAlign);
Assert.False(control.IsHandleCreated);
// Set same.
control.TextAlign = value;
Assert.Equal(value, control.TextAlign);
Assert.False(control.IsHandleCreated);
}
[WinFormsTheory]
[InvalidEnumData<ContentAlignment>]
public void CheckBox_TextAlign_SetInvalidValue_ThrowsInvalidEnumArgumentException(ContentAlignment value)
{
using CheckBox control = new();
Assert.Throws<InvalidEnumArgumentException>("value", () => control.TextAlign = value);
}
[WinFormsTheory]
[BoolData]
public void CheckBox_ThreeState(bool expected)
{
using CheckBox box = new()
{
ThreeState = expected
};
Assert.Equal(expected, box.ThreeState);
}
[WinFormsFact]
public void CheckBox_CreateFlatAdapter()
{
using CheckBox box = new();
ButtonInternal.ButtonBaseAdapter buttonBaseAdptr = box.CreateFlatAdapter();
Assert.NotNull(buttonBaseAdptr);
}
[WinFormsFact]
public void CheckBox_CreatePopupAdapter()
{
using CheckBox box = new();
ButtonInternal.ButtonBaseAdapter checkBoxPopupAdptr = box.CreatePopupAdapter();
Assert.NotNull(checkBoxPopupAdptr);
}
[WinFormsFact]
public void CheckBox_CreateStandardAdapter()
{
using CheckBox box = new();
ButtonInternal.ButtonBaseAdapter checkBoxSndAdptr = box.CreateStandardAdapter();
Assert.NotNull(checkBoxSndAdptr);
}
[WinFormsFact]
public void CheckBox_GetAutoSizeMode_Invoke_ReturnsExpected()
{
using SubCheckBox control = new();
Assert.Equal(AutoSizeMode.GrowAndShrink, control.GetAutoSizeMode());
}
[WinFormsTheory]
[InlineData(ControlStyles.ContainerControl, false)]
[InlineData(ControlStyles.UserPaint, true)]
[InlineData(ControlStyles.Opaque, true)]
[InlineData(ControlStyles.ResizeRedraw, true)]
[InlineData(ControlStyles.FixedWidth, false)]
[InlineData(ControlStyles.FixedHeight, false)]
[InlineData(ControlStyles.StandardClick, false)]
[InlineData(ControlStyles.Selectable, true)]
[InlineData(ControlStyles.UserMouse, true)]
[InlineData(ControlStyles.SupportsTransparentBackColor, true)]
[InlineData(ControlStyles.StandardDoubleClick, false)]
[InlineData(ControlStyles.AllPaintingInWmPaint, true)]
[InlineData(ControlStyles.CacheText, true)]
[InlineData(ControlStyles.EnableNotifyMessage, false)]
[InlineData(ControlStyles.DoubleBuffer, false)]
[InlineData(ControlStyles.OptimizedDoubleBuffer, true)]
[InlineData(ControlStyles.UseTextForAccessibility, true)]
[InlineData((ControlStyles)0, true)]
[InlineData((ControlStyles)int.MaxValue, false)]
[InlineData((ControlStyles)(-1), false)]
public void CheckBox_GetStyle_Invoke_ReturnsExpected(ControlStyles flag, bool expected)
{
using SubCheckBox control = new();
Assert.Equal(expected, control.GetStyle(flag));
// Call again to test caching.
Assert.Equal(expected, control.GetStyle(flag));
}
[WinFormsFact]
public void CheckBox_GetTopLevel_Invoke_ReturnsExpected()
{
using SubCheckBox control = new();
Assert.False(control.GetTopLevel());
}
[WinFormsFact]
public void CheckBox_RaiseAutomationEvent_Invoke_Success()
{
using TestCheckBox checkBox = new();
Assert.False(checkBox.IsHandleCreated);
var accessibleObject = (SubCheckBoxAccessibleObject)checkBox.AccessibilityObject;
Assert.Equal(0, accessibleObject.RaiseAutomationEventCallsCount);
Assert.Equal(0, accessibleObject.RaiseAutomationPropertyChangedEventCallsCount);
checkBox.Checked = true;
Assert.Equal(1, accessibleObject.RaiseAutomationEventCallsCount);
Assert.Equal(1, accessibleObject.RaiseAutomationPropertyChangedEventCallsCount);
Assert.False(checkBox.IsHandleCreated);
}
[WinFormsTheory]
[NewAndDefaultData<EventArgs>]
public void CheckBox_OnAppearanceChanged_Invoke_CallsDoubleClick(EventArgs eventArgs)
{
using SubCheckBox control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
sender.Should().BeSameAs(control);
eventArgs.Should().BeSameAs(e);
callCount++;
};
// Call with handler.
control.AppearanceChanged += handler;
control.OnAppearanceChanged(eventArgs);
callCount.Should().Be(1);
// Remove handler.
control.AppearanceChanged -= handler;
control.OnAppearanceChanged(eventArgs);
callCount.Should().Be(1);
}
[WinFormsTheory]
[NewAndDefaultData<EventArgs>]
public void CheckBox_OnDoubleClick_Invoke_CallsDoubleClick(EventArgs eventArgs)
{
using SubCheckBox control = new();
int callCount = 0;
EventHandler handler = (sender, e) =>
{
sender.Should().BeSameAs(control);
eventArgs.Should().BeSameAs(e);
callCount++;
};
// Call with handler.
control.DoubleClick += handler;
control.OnDoubleClick(eventArgs);
callCount.Should().Be(1);
// Remove handler.
control.DoubleClick -= handler;
control.OnDoubleClick(eventArgs);
callCount.Should().Be(1);
}
[WinFormsTheory]
[CommonMemberData(typeof(CommonTestHelperEx), nameof(CommonTestHelperEx.GetMouseEventArgsTheoryData))]
public void CheckBox_OnMouseDoubleClick_Invoke_CallsMouseDoubleClick(MouseEventArgs eventArgs)
{
using SubCheckBox control = new();
int callCount = 0;
MouseEventHandler handler = (sender, e) =>
{
sender.Should().BeSameAs(control);
eventArgs.Should().BeSameAs(e);
callCount++;
};
// Call with handler.
control.MouseDoubleClick += handler;
control.OnMouseDoubleClick(eventArgs);
callCount.Should().Be(1);
// Remove handler.
control.MouseDoubleClick -= handler;
control.OnMouseDoubleClick(eventArgs);
callCount.Should().Be(1);
}
// the zero here may be an issue with cultural variance
[WinFormsFact]
public void CheckBox_ToStringTest()
{
using CheckBox box = new();
string expected = "System.Windows.Forms.CheckBox, CheckState: 0";
string actual = box.ToString();
Assert.Equal(expected, actual);
}
public class SubCheckBox : CheckBox
{
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 IsDefault
{
get => base.IsDefault;
set => base.IsDefault = 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 OnAppearanceChanged(EventArgs e) => base.OnAppearanceChanged(e);
public new void OnClick(EventArgs e) => base.OnClick(e);
public new void OnDoubleClick(EventArgs e) => base.OnDoubleClick(e);
public new void OnMouseDoubleClick(MouseEventArgs e) => base.OnMouseDoubleClick(e);
public new void OnMouseUp(MouseEventArgs e) => base.OnMouseUp(e);
public new void OnCheckedChanged(EventArgs e) => base.OnCheckedChanged(e);
public new void OnCheckStateChanged(EventArgs e) => base.OnCheckStateChanged(e);
internal new void OnMouseClick(MouseEventArgs e) => base.OnMouseClick(e);
internal new void OnMouseDown(MouseEventArgs e) => base.OnMouseDown(e);
}
private class TestCheckBox : CheckBox
{
protected override AccessibleObject CreateAccessibilityInstance()
{
return new SubCheckBoxAccessibleObject(this);
}
}
private class SubCheckBoxAccessibleObject : CheckBox.CheckBoxAccessibleObject
{
public SubCheckBoxAccessibleObject(CheckBox owner) : base(owner)
{
RaiseAutomationEventCallsCount = 0;
RaiseAutomationPropertyChangedEventCallsCount = 0;
}
public int RaiseAutomationEventCallsCount { get; private set; }
public int RaiseAutomationPropertyChangedEventCallsCount { get; private set; }
internal override bool RaiseAutomationEvent(UIA_EVENT_ID eventId)
{
RaiseAutomationEventCallsCount++;
return base.RaiseAutomationEvent(eventId);
}
internal override bool RaiseAutomationPropertyChangedEvent(UIA_PROPERTY_ID propertyId, VARIANT oldValue, VARIANT newValue)
{
RaiseAutomationPropertyChangedEventCallsCount++;
return base.RaiseAutomationPropertyChangedEvent(propertyId, oldValue, newValue);
}
}
[WinFormsFact]
public void CheckBox_CheckedChangedEvent_Raised()
{
using CheckBox checkBox = (CheckBox)CreateButton();
bool eventFired = false;
checkBox.CheckedChanged += (sender, args) => eventFired = true;
checkBox.Checked = !checkBox.Checked;
eventFired.Should().BeTrue();
}
[WinFormsFact]
public void CheckBox_CheckStateChangedEvent_Raised()
{
using CheckBox checkBox = (CheckBox)CreateButton();
bool eventFired = false;
checkBox.CheckStateChanged += (sender, args) => eventFired = true;
checkBox.CheckState = checkBox.CheckState == CheckState.Checked ? CheckState.Unchecked : CheckState.Checked;
eventFired.Should().BeTrue();
}
public static IEnumerable<object[]> Appearance_FlatStyle_TestData()
{
yield return new object[] { Appearance.Button, FlatStyle.Standard };
yield return new object[] { Appearance.Button, FlatStyle.Flat };
yield return new object[] { Appearance.Button, FlatStyle.Popup };
yield return new object[] { Appearance.Button, FlatStyle.System };
yield return new object[] { Appearance.Normal, FlatStyle.Standard };
yield return new object[] { Appearance.Normal, FlatStyle.Flat };
yield return new object[] { Appearance.Normal, FlatStyle.Popup };
yield return new object[] { Appearance.Normal, FlatStyle.System };
}
[WinFormsTheory]
[MemberData(nameof(Appearance_FlatStyle_TestData))]
public void CheckBox_OverChangeRectangle_Get(Appearance appearance, FlatStyle flatStyle) => base.ButtonBase_OverChangeRectangle_Get(appearance, flatStyle);
[WinFormsTheory]
[MemberData(nameof(Appearance_FlatStyle_TestData))]
public void CheckBox_DownChangeRectangle_ReturnsExpectedRectangle(Appearance appearance, FlatStyle flatStyle)
{
CheckBox checkBox = (CheckBox)CreateButton();
checkBox.Appearance = appearance;
checkBox.FlatStyle = flatStyle;
Rectangle downChangeRectangle = checkBox.DownChangeRectangle;
if (appearance == Appearance.Button || flatStyle == FlatStyle.System)
{
downChangeRectangle.Should().Be(checkBox.ClientRectangle);
}
else
{
downChangeRectangle.Should().Be(checkBox.Adapter.CommonLayout().Layout().CheckBounds);
}
}
[WinFormsTheory]
[InlineData(true)]
[InlineData(false)]
public void CheckBox_LeftClick_MouseUpCounts(bool capture)
{
using Form form = new();
using SubCheckBox control = (SubCheckBox)CreateButton();
control.Capture = capture;
form.Controls.Add(control);
control.TabIndex = 9999;
form.Show();
MouseEventArgs eventArgs = new(MouseButtons.Left, 1, new Point(0, 0), 0);
int callCountOnMouseUp = 0;
control.MouseUp += (sender, e) =>
{
sender.Should().Be(control);
e.Should().Be(eventArgs);
callCountOnMouseUp++;
};
control.OnMouseUp(eventArgs);
callCountOnMouseUp.Should().Be(1);
}
[WinFormsTheory]
[InlineData(true, '&', "&MnemonicText")]
[InlineData(true, 'N', "NonMnemonicText")]
[InlineData(true, 'M', "&MnemonicText")]
[InlineData(false, 'M', "&MnemonicText")]
public void CheckBox_ProcessMnemonic_ValidCases(bool useMnemonic, char charCode, string buttonText)
{
// Arrange
using Form form = new();
using SubCheckBox checkBox = new()
{
UseMnemonic = useMnemonic,
Text = buttonText,
};
form.Controls.Add(checkBox);
form.Show();
// Act
bool result = checkBox.ProcessMnemonic(charCode);
// Assert
// Requirements for SUT to process mnemonic
bool requirements =
useMnemonic
&& charCode != '&'
&& buttonText.Contains($"&{charCode}", StringComparison.OrdinalIgnoreCase);
if (!requirements)
{
return;
}
result.Should().BeTrue();
checkBox.Focused.Should().BeTrue();
checkBox.CheckState.Should().Be(CheckState.Checked);
}
protected override ButtonBase CreateButton() => new SubCheckBox();
}
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