public void TestMouseMoveEventProducer_Callback()
{
/* PRECONDITIONS */
Debug.Assert(mouseModule != null);
Debug.Assert(mouseMoveEventProducer != null);
Debug.Assert(hookNativeMethodsMock != null);
Debug.Assert(hookNativeMethodsMock.Mock != null);
/* GIVEN */
mouseModule.Initialize(true);
//setting up fake nativeMouseMock behaviors, messages and corresponding expected Events
nativeMouseMock.SetupSequence(nM => nM.GetCursorPos())
.Returns(new INativeMouse.POINT {
X = 100, Y = 100
})
.Returns(new INativeMouse.POINT {
X = 0, Y = 0
});
// since the the cursor position varis from 100,100 to 0,0 (> threshold), we expect to
// receive event with position 0,0
MouseMoveEvent[] expectedEvents =
{
new MouseMoveEvent {
MousePosition = new Point{
X = 0, Y = 0
}
}
};
/* WHEN */
// consumedEvent.Signal() will be called gdw one event has been found and meet expectation
using var consumedEvent = new CountdownEvent(expectedEvents.Length);
Assert.IsTrue(consumedEvent.CurrentCount == expectedEvents.Length);
//didStartConsumingEvent.Set() will be called in Await method gdw the consumer is attached
using var didStartConsumingEvent = new ManualResetEvent(false);
//Running the task in another thread
var thread = new Thread(async() =>
{
await foreach (var @event in Await <IAsyncEnumerable <MouseMoveEvent> >(mouseMoveEventProducer.GetEvents(), didStartConsumingEvent))
{
if (!IsMouseMoveEventFound(@event, expectedEvents))
{
continue;
}
consumedEvent.Signal();
}
});
thread.Start();
// true if the consumer is attached!
Assert.IsTrue(didStartConsumingEvent.WaitOne(maxWaitTime));
// We must call the callback after the consumer is attached!
// otherwise the message is automatically dismissed.
/// this is where the GetMousePosition() "callback" in the producer will be called! with Timer
mouseMoveEventProducer.StartCapture(nativeMouseMock.Object);
/* THEN */
//true if all events generated by the fake messages have meet expectation.
Assert.IsTrue(consumedEvent.Wait(maxWaitTime), "Did not find all matching mouse move events in time.");
//total shut down and resources release
mouseMoveEventProducer.StopCapture();
mouseModule.Initialize(false);
}
