Files
Terminal.Gui/Tests/UnitTestsParallelizable/Application/Mouse/ApplicationMouseEnterLeaveTests.cs
Tig 5da7e59aa2 Fixes #4456 - Clear MouseGrabView in App.End (#4460)
* Fixed MouseGrabView bug.

Added extensive test coverage for `Keyboard`, `Mouse`, `Timeout`, and `Popover` functionalities, including edge cases and concurrent access. Introduced parameterized and data-driven tests to reduce redundancy and improve clarity.

Refactored codebase for modularity and maintainability,
introducing new namespaces and reorganizing classes. Enhanced `MouseImpl`, `KeyboardImpl`, and `Runnable` implementations with improved event handling, thread safety, and support for the Terminal.Gui Cancellable Work Pattern (CWP).

Removed deprecated code and legacy tests, such as `LogarithmicTimeout` and `SmoothAcceleratingTimeout`. Fixed bugs related to mouse grabbing during drag operations and unbalanced `ApplicationImpl.Begin/End` calls. Improved documentation and code readability with modern C# features.

* Code cleanup.

* Update Tests/UnitTestsParallelizable/Application/Runnable/RunnableIntegrationTests.cs

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Improve null handling and simplify test setup

In `MouseImpl.cs`, added an early `return` after the `UngrabMouse()`
call within the `if (view is null)` block to prevent further execution
when `view` is `null`, improving null reference handling.

In `RunnableIntegrationTests.cs`, removed the initialization of the
`IApplication` object (`app`) from the `MultipleRunnables_IndependentResults`
test method, simplifying the test setup and focusing on runnable behavior.

* Code cleanup

* API doc link cleanup

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
2025-12-07 13:01:19 -07:00

455 lines
15 KiB
C#

#nullable enable
using System.ComponentModel;
namespace ApplicationTests.Mouse;
[Trait ("Category", "Input")]
public class ApplicationMouseEnterLeaveTests
{
private class TestView : View
{
public TestView ()
{
X = 1;
Y = 1;
Width = 1;
Height = 1;
}
// public bool CancelOnEnter { get; }
public int OnMouseEnterCalled { get; private set; }
public int OnMouseLeaveCalled { get; private set; }
protected override bool OnMouseEnter (CancelEventArgs eventArgs)
{
OnMouseEnterCalled++;
// eventArgs.Cancel = CancelOnEnter;
base.OnMouseEnter (eventArgs);
return eventArgs.Cancel;
}
protected override void OnMouseLeave ()
{
OnMouseLeaveCalled++;
base.OnMouseLeave ();
}
}
[Fact]
public void RaiseMouseEnterLeaveEvents_MouseEntersView_CallsOnMouseEnter ()
{
IApplication? app = Application.Create ();
Runnable<bool> runnable = new () { Frame = new (0, 0, 10, 10) };
app.Begin (runnable);
// Arrange
var view = new TestView ();
runnable.Add (view);
var mousePosition = new Point (1, 1);
List<View?> currentViewsUnderMouse = [view];
var mouseEvent = new MouseEventArgs
{
Position = mousePosition,
ScreenPosition = mousePosition
};
app.Mouse.CachedViewsUnderMouse.Clear ();
try
{
// Act
app.Mouse.RaiseMouseEnterLeaveEvents (mousePosition, currentViewsUnderMouse);
// Assert
Assert.Equal (1, view.OnMouseEnterCalled);
}
finally
{
// Cleanup
app.Mouse.ResetState ();
}
}
[Fact]
public void RaiseMouseEnterLeaveEvents_MouseLeavesView_CallsOnMouseLeave ()
{
// Arrange
IApplication? app = Application.Create ();
Runnable<bool> runnable = new () { Frame = new (0, 0, 10, 10) };
app.Begin (runnable);
var view = new TestView ();
runnable.Add (view);
var mousePosition = new Point (0, 0);
List<View?> currentViewsUnderMouse = new ();
var mouseEvent = new MouseEventArgs ();
app.Mouse.CachedViewsUnderMouse.Clear ();
app.Mouse.CachedViewsUnderMouse.Add (view);
// Act
app.Mouse.RaiseMouseEnterLeaveEvents (mousePosition, currentViewsUnderMouse);
// Assert
Assert.Equal (0, view.OnMouseEnterCalled);
Assert.Equal (1, view.OnMouseLeaveCalled);
}
[Fact]
public void RaiseMouseEnterLeaveEvents_MouseMovesBetweenAdjacentViews_CallsOnMouseEnterAndLeave ()
{
// Arrange
IApplication? app = Application.Create ();
Runnable<bool> runnable = new () { Frame = new (0, 0, 10, 10) };
app.Begin (runnable);
var view1 = new TestView (); // at 1,1 to 2,2
var view2 = new TestView () // at 2,2 to 3,3
{
X = 2,
Y = 2
};
runnable.Add (view1);
runnable.Add (view2);
app.Mouse.CachedViewsUnderMouse.Clear ();
// Act
var mousePosition = new Point (0, 0);
app.Mouse.RaiseMouseEnterLeaveEvents (
mousePosition,
runnable.GetViewsUnderLocation (mousePosition, ViewportSettingsFlags.TransparentMouse));
// Assert
Assert.Equal (0, view1.OnMouseEnterCalled);
Assert.Equal (0, view1.OnMouseLeaveCalled);
Assert.Equal (0, view2.OnMouseEnterCalled);
Assert.Equal (0, view2.OnMouseLeaveCalled);
// Act
mousePosition = new (1, 1);
app.Mouse.RaiseMouseEnterLeaveEvents (
mousePosition,
runnable.GetViewsUnderLocation (mousePosition, ViewportSettingsFlags.TransparentMouse));
// Assert
Assert.Equal (1, view1.OnMouseEnterCalled);
Assert.Equal (0, view1.OnMouseLeaveCalled);
Assert.Equal (0, view2.OnMouseEnterCalled);
Assert.Equal (0, view2.OnMouseLeaveCalled);
// Act
mousePosition = new (2, 2);
app.Mouse.RaiseMouseEnterLeaveEvents (
mousePosition,
runnable.GetViewsUnderLocation (mousePosition, ViewportSettingsFlags.TransparentMouse));
// Assert
Assert.Equal (1, view1.OnMouseEnterCalled);
Assert.Equal (1, view1.OnMouseLeaveCalled);
Assert.Equal (1, view2.OnMouseEnterCalled);
Assert.Equal (0, view2.OnMouseLeaveCalled);
// Act
mousePosition = new (3, 3);
app.Mouse.RaiseMouseEnterLeaveEvents (
mousePosition,
runnable.GetViewsUnderLocation (mousePosition, ViewportSettingsFlags.TransparentMouse));
// Assert
Assert.Equal (1, view1.OnMouseEnterCalled);
Assert.Equal (1, view1.OnMouseLeaveCalled);
Assert.Equal (1, view2.OnMouseEnterCalled);
Assert.Equal (1, view2.OnMouseLeaveCalled);
// Act
mousePosition = new (0, 0);
app.Mouse.RaiseMouseEnterLeaveEvents (
mousePosition,
runnable.GetViewsUnderLocation (mousePosition, ViewportSettingsFlags.TransparentMouse));
// Assert
Assert.Equal (1, view1.OnMouseEnterCalled);
Assert.Equal (1, view1.OnMouseLeaveCalled);
Assert.Equal (1, view2.OnMouseEnterCalled);
Assert.Equal (1, view2.OnMouseLeaveCalled);
}
[Fact]
public void RaiseMouseEnterLeaveEvents_NoViewsUnderMouse_DoesNotCallOnMouseEnterOrLeave ()
{
// Arrange
IApplication? app = Application.Create ();
Runnable<bool> runnable = new () { Frame = new (0, 0, 10, 10) };
app.Begin (runnable);
var view = new TestView ();
runnable.Add (view);
var mousePosition = new Point (0, 0);
List<View?> currentViewsUnderMouse = new ();
var mouseEvent = new MouseEventArgs ();
app.Mouse.CachedViewsUnderMouse.Clear ();
// Act
app.Mouse.RaiseMouseEnterLeaveEvents (mousePosition, currentViewsUnderMouse);
// Assert
Assert.Equal (0, view.OnMouseEnterCalled);
Assert.Equal (0, view.OnMouseLeaveCalled);
}
[Fact]
public void RaiseMouseEnterLeaveEvents_MouseMovesBetweenOverlappingPeerViews_CallsOnMouseEnterAndLeave ()
{
// Arrange
IApplication? app = Application.Create ();
Runnable<bool> runnable = new () { Frame = new (0, 0, 10, 10) };
app.Begin (runnable);
var view1 = new TestView
{
Width = 2
}; // at 1,1 to 3,2
var view2 = new TestView () // at 2,2 to 4,3
{
Width = 2,
X = 2,
Y = 2
};
runnable.Add (view1);
runnable.Add (view2);
app.Mouse.CachedViewsUnderMouse.Clear ();
// Act
var mousePosition = new Point (0, 0);
app.Mouse.RaiseMouseEnterLeaveEvents (
mousePosition,
runnable.GetViewsUnderLocation (mousePosition, ViewportSettingsFlags.TransparentMouse));
// Assert
Assert.Equal (0, view1.OnMouseEnterCalled);
Assert.Equal (0, view1.OnMouseLeaveCalled);
Assert.Equal (0, view2.OnMouseEnterCalled);
Assert.Equal (0, view2.OnMouseLeaveCalled);
// Act
mousePosition = new (1, 1);
app.Mouse.RaiseMouseEnterLeaveEvents (
mousePosition,
runnable.GetViewsUnderLocation (mousePosition, ViewportSettingsFlags.TransparentMouse));
// Assert
Assert.Equal (1, view1.OnMouseEnterCalled);
Assert.Equal (0, view1.OnMouseLeaveCalled);
Assert.Equal (0, view2.OnMouseEnterCalled);
Assert.Equal (0, view2.OnMouseLeaveCalled);
// Act
mousePosition = new (2, 2);
app.Mouse.RaiseMouseEnterLeaveEvents (
mousePosition,
runnable.GetViewsUnderLocation (mousePosition, ViewportSettingsFlags.TransparentMouse));
// Assert
Assert.Equal (1, view1.OnMouseEnterCalled);
Assert.Equal (1, view1.OnMouseLeaveCalled);
Assert.Equal (1, view2.OnMouseEnterCalled);
Assert.Equal (0, view2.OnMouseLeaveCalled);
// Act
mousePosition = new (3, 3);
app.Mouse.RaiseMouseEnterLeaveEvents (
mousePosition,
runnable.GetViewsUnderLocation (mousePosition, ViewportSettingsFlags.TransparentMouse));
// Assert
Assert.Equal (1, view1.OnMouseEnterCalled);
Assert.Equal (1, view1.OnMouseLeaveCalled);
Assert.Equal (1, view2.OnMouseEnterCalled);
Assert.Equal (1, view2.OnMouseLeaveCalled);
// Act
mousePosition = new (0, 0);
app.Mouse.RaiseMouseEnterLeaveEvents (
mousePosition,
runnable.GetViewsUnderLocation (mousePosition, ViewportSettingsFlags.TransparentMouse));
// Assert
Assert.Equal (1, view1.OnMouseEnterCalled);
Assert.Equal (1, view1.OnMouseLeaveCalled);
Assert.Equal (1, view2.OnMouseEnterCalled);
Assert.Equal (1, view2.OnMouseLeaveCalled);
// Act
mousePosition = new (2, 2);
app.Mouse.RaiseMouseEnterLeaveEvents (
mousePosition,
runnable.GetViewsUnderLocation (mousePosition, ViewportSettingsFlags.TransparentMouse));
// Assert
Assert.Equal (1, view1.OnMouseEnterCalled);
Assert.Equal (1, view1.OnMouseLeaveCalled);
Assert.Equal (2, view2.OnMouseEnterCalled);
Assert.Equal (1, view2.OnMouseLeaveCalled);
}
[Fact]
public void RaiseMouseEnterLeaveEvents_MouseMovesBetweenOverlappingSubViews_CallsOnMouseEnterAndLeave ()
{
// Arrange
IApplication? app = Application.Create ();
Runnable<bool> runnable = new () { Frame = new (0, 0, 10, 10) };
app.Begin (runnable);
var view1 = new TestView
{
Id = "view1",
Width = 2,
Height = 2,
Arrangement = ViewArrangement.Overlapped
}; // at 1,1 to 3,3 (screen)
var subView = new TestView
{
Id = "subView",
Width = 2,
Height = 2,
X = 1,
Y = 1,
Arrangement = ViewArrangement.Overlapped
}; // at 2,2 to 4,4 (screen)
view1.Add (subView);
runnable.Add (view1);
app.Mouse.CachedViewsUnderMouse.Clear ();
Assert.Equal (1, view1.FrameToScreen ().X);
Assert.Equal (2, subView.FrameToScreen ().X);
// Act
var mousePosition = new Point (0, 0);
app.Mouse.RaiseMouseEnterLeaveEvents (
mousePosition,
runnable.GetViewsUnderLocation (mousePosition, ViewportSettingsFlags.TransparentMouse));
// Assert
Assert.Equal (0, view1.OnMouseEnterCalled);
Assert.Equal (0, view1.OnMouseLeaveCalled);
Assert.Equal (0, subView.OnMouseEnterCalled);
Assert.Equal (0, subView.OnMouseLeaveCalled);
// Act
mousePosition = new (1, 1);
app.Mouse.RaiseMouseEnterLeaveEvents (
mousePosition,
runnable.GetViewsUnderLocation (mousePosition, ViewportSettingsFlags.TransparentMouse));
// Assert
Assert.Equal (1, view1.OnMouseEnterCalled);
Assert.Equal (0, view1.OnMouseLeaveCalled);
Assert.Equal (0, subView.OnMouseEnterCalled);
Assert.Equal (0, subView.OnMouseLeaveCalled);
// Act
mousePosition = new (2, 2);
app.Mouse.RaiseMouseEnterLeaveEvents (
mousePosition,
runnable.GetViewsUnderLocation (mousePosition, ViewportSettingsFlags.TransparentMouse));
// Assert
Assert.Equal (1, view1.OnMouseEnterCalled);
Assert.Equal (0, view1.OnMouseLeaveCalled);
Assert.Equal (1, subView.OnMouseEnterCalled);
Assert.Equal (0, subView.OnMouseLeaveCalled);
// Act
mousePosition = new (0, 0);
app.Mouse.RaiseMouseEnterLeaveEvents (
mousePosition,
runnable.GetViewsUnderLocation (mousePosition, ViewportSettingsFlags.TransparentMouse));
// Assert
Assert.Equal (1, view1.OnMouseEnterCalled);
Assert.Equal (1, view1.OnMouseLeaveCalled);
Assert.Equal (1, subView.OnMouseEnterCalled);
Assert.Equal (1, subView.OnMouseLeaveCalled);
// Act
mousePosition = new (2, 2);
app.Mouse.RaiseMouseEnterLeaveEvents (
mousePosition,
runnable.GetViewsUnderLocation (mousePosition, ViewportSettingsFlags.TransparentMouse));
// Assert
Assert.Equal (2, view1.OnMouseEnterCalled);
Assert.Equal (1, view1.OnMouseLeaveCalled);
Assert.Equal (2, subView.OnMouseEnterCalled);
Assert.Equal (1, subView.OnMouseLeaveCalled);
// Act
mousePosition = new (3, 3);
app.Mouse.RaiseMouseEnterLeaveEvents (
mousePosition,
runnable.GetViewsUnderLocation (mousePosition, ViewportSettingsFlags.TransparentMouse));
// Assert
Assert.Equal (2, view1.OnMouseEnterCalled);
Assert.Equal (2, view1.OnMouseLeaveCalled);
Assert.Equal (2, subView.OnMouseEnterCalled);
Assert.Equal (2, subView.OnMouseLeaveCalled);
// Act
mousePosition = new (0, 0);
app.Mouse.RaiseMouseEnterLeaveEvents (
mousePosition,
runnable.GetViewsUnderLocation (mousePosition, ViewportSettingsFlags.TransparentMouse));
// Assert
Assert.Equal (2, view1.OnMouseEnterCalled);
Assert.Equal (2, view1.OnMouseLeaveCalled);
Assert.Equal (2, subView.OnMouseEnterCalled);
Assert.Equal (2, subView.OnMouseLeaveCalled);
// Act
mousePosition = new (2, 2);
app.Mouse.RaiseMouseEnterLeaveEvents (
mousePosition,
runnable.GetViewsUnderLocation (mousePosition, ViewportSettingsFlags.TransparentMouse));
// Assert
Assert.Equal (3, view1.OnMouseEnterCalled);
Assert.Equal (2, view1.OnMouseLeaveCalled);
Assert.Equal (3, subView.OnMouseEnterCalled);
Assert.Equal (2, subView.OnMouseLeaveCalled);
}
}