public void MouseDeviceButtonTest()
{
Border element = new Border {
Background = Brushes.Transparent, Width = 100, Height = 100, IsRootElement = true
};
element.Measure(Size.Infinity);
element.Arrange(new Rect(element.DesiredSize));
int eventIndex = 0;
int previewMouseDownIndex = 0;
int previewMouseUpIndex = 0;
int mouseDownIndex = 0;
int mouseUpIndex = 0;
element.PreviewMouseDown += (sender, e) => previewMouseDownIndex = ++eventIndex;
element.PreviewMouseUp += (sender, e) => previewMouseUpIndex = ++eventIndex;
element.MouseDown += (sender, e) => mouseDownIndex = ++eventIndex;
element.MouseUp += (sender, e) => mouseUpIndex = ++eventIndex;
TestPresentationSource presentationSource = new TestPresentationSource();
presentationSource.RootElement = element;
MouseDevice mouseDevice = new MouseDevice(presentationSource);
mouseDevice.Activate();
mouseDevice.ProcessRawEvent(new RawMouseButtonEventArgs(MouseButton.Left, MouseButtonState.Pressed, new Point(10, 10), 0));
Assert.AreEqual(MouseButtonState.Pressed, mouseDevice.GetButtonState(MouseButton.Left));
Assert.AreEqual(1, previewMouseDownIndex);
Assert.AreEqual(2, mouseDownIndex);
mouseDevice.ProcessRawEvent(new RawMouseButtonEventArgs(MouseButton.Left, MouseButtonState.Released, new Point(10, 10), 0));
Assert.AreEqual(MouseButtonState.Released, mouseDevice.GetButtonState(MouseButton.Left));
Assert.AreEqual(3, previewMouseUpIndex);
Assert.AreEqual(4, mouseUpIndex);
mouseDevice.ProcessRawEvent(new RawMouseButtonEventArgs(MouseButton.Left, MouseButtonState.Pressed, new Point(10, 10), 0));
Assert.AreEqual(MouseButtonState.Pressed, mouseDevice.GetButtonState(MouseButton.Left));
Assert.AreEqual(5, previewMouseDownIndex);
Assert.AreEqual(6, mouseDownIndex);
mouseDevice.Deactivate();
Assert.AreEqual(MouseButtonState.Released, mouseDevice.GetButtonState(MouseButton.Left));
Assert.AreEqual(7, previewMouseUpIndex);
Assert.AreEqual(8, mouseUpIndex);
}
