public async Task DelayOnExecuteWaitsForIntervalBeforeFirstTaskWithCancellationToken()
{
// Arrange
Mock<IAsynchronousDelay> delay = new Mock<IAsynchronousDelay>();
AsynchronousIntervalTimer timer = new AsynchronousIntervalTimer(delay.Object, TimeSpan.FromMilliseconds(PretendDelayInMilliseconds), true);
CancellationTokenSource source = new CancellationTokenSource();
// Act
await timer.ExecuteAsync(ct => Task.FromResult(false), source.Token);
// Assert
delay.Verify(x => x.Delay(TimeSpan.FromMilliseconds(PretendDelayInMilliseconds), source.Token));
}
public async Task ShutdownActionInvokedWithCancellationToken()
{
// Arrange
Mock<IAsynchronousDelay> delay = new Mock<IAsynchronousDelay>();
bool shutdownActionInvoked = false;
AsynchronousIntervalTimer timer = new AsynchronousIntervalTimer(delay.Object, TimeSpan.FromMilliseconds(PretendDelayInMilliseconds), false);
CancellationTokenSource source = new CancellationTokenSource();
// Act
await timer.ExecuteAsync(ct => Task.FromResult(false), source.Token, () => shutdownActionInvoked = true);
// Assert
Assert.IsTrue(shutdownActionInvoked);
source.Dispose();
}
public async Task ReturningFalseCancelsTimerWithCancellationToken()
{
// Arrange
Mock<IAsynchronousDelay> delay = new Mock<IAsynchronousDelay>();
AsynchronousIntervalTimer timer = new AsynchronousIntervalTimer(delay.Object, TimeSpan.FromMilliseconds(PretendDelayInMilliseconds), false);
CancellationTokenSource source = new CancellationTokenSource();
int repeatCount = 0;
// Act
await timer.ExecuteAsync(ct =>
{
repeatCount++;
return Task.FromResult(false);
}, source.Token);
// Assert
Assert.AreEqual(1, repeatCount);
source.Dispose();
}
public async Task IntervalOccursBetweenTasksWithCancellationToken()
{
// Arrange
Mock<IAsynchronousDelay> delay = new Mock<IAsynchronousDelay>();
AsynchronousIntervalTimer timer = new AsynchronousIntervalTimer(delay.Object, TimeSpan.FromMilliseconds(PretendDelayInMilliseconds), false);
CancellationTokenSource source = new CancellationTokenSource();
int repeatCount = 0;
// Act
await timer.ExecuteAsync(ct =>
{
repeatCount++;
return Task.FromResult(repeatCount < 2);
}, source.Token);
// Assert
Assert.AreEqual(2, repeatCount);
delay.Verify(x => x.Delay(TimeSpan.FromMilliseconds(PretendDelayInMilliseconds), source.Token));
source.Dispose();
}