public void TestSetCanceledAsynchronously()
{
var scheduler = new TestScheduler();
var sut = new FastTaskCompletionSource <string>();
var threadId = Thread.CurrentThread.ManagedThreadId;
var task = scheduler
.Run(async ct =>
{
Thread.CurrentThread.ManagedThreadId.Should().Be(threadId);
await sut.Task;
throw new Exception("should not reach here");
}, CancellationToken.None);
task.IsCompleted.Should().BeFalse();
scheduler.AdvanceBy(5);
task.IsCompleted.Should().BeFalse();
sut.SetCanceled();
scheduler.AdvanceBy(5);
task.IsCompleted.Should().BeTrue();
task.Status.Should().Be(TaskStatus.Canceled);
scheduler.Stop();
}
public void TestSetCanceledTwice_ThrowException()
{
var sut = new FastTaskCompletionSource <string>();
Action action = () => sut.SetCanceled();
action.Should().NotThrow();
action.Should().Throw <InvalidOperationException>();
}
public void TestSetCanceledSynchronously1()
{
var sut = new FastTaskCompletionSource <string>();
sut.SetCanceled();
// The task is created AFTER the task being canceled
var task = sut.Task;
task.IsCompleted.Should().BeTrue();
task.Status.Should().Be(TaskStatus.Canceled);
}
