public void delay_async_cancels_the_delay_if_cancellation_token_is_cancelled()
{
var scheduler = new TestSchedulerService();
var sut = new DelayServiceBuilder()
.WithSchedulerService(scheduler)
.Build();
var cts = new CancellationTokenSource();
Exception exception = null;
var delayResult = sut
.DelayAsync(TimeSpan.FromSeconds(5), cts.Token)
.Subscribe(
_ => { },
ex => exception = ex);
scheduler.AdvanceBy(TimeSpan.FromSeconds(1));
Assert.Null(exception);
cts.Cancel();
scheduler.AdvanceBy(TimeSpan.FromSeconds(5));
Assert.IsType<OperationCanceledException>(exception);
}
public void delay_async_returns_observable_that_ticks_after_specified_delay()
{
var scheduler = new TestSchedulerService();
var sut = new DelayServiceBuilder()
.WithSchedulerService(scheduler)
.Build();
var completed = false;
sut
.DelayAsync(TimeSpan.FromSeconds(5))
.Subscribe(_ => completed = true);
Assert.False(completed);
scheduler.AdvanceBy(TimeSpan.FromSeconds(1));
Assert.False(completed);
scheduler.AdvanceBy(TimeSpan.FromSeconds(2));
Assert.False(completed);
scheduler.AdvanceBy(TimeSpan.FromSeconds(3));
Assert.True(completed);
}