gistfile1.cs

[TestMethod]
public void TimerShouldFinishAfterThirtyMinutes()
{
    (new TestScheduler()).With(sched => {                
	var lastState = BlockTimerViewState.Initialized;
	bool isTimerStateDone = false;
	var fixture = new BlockTimerViewModel(new BlockItem() { 
            Description = "Test Item" 
        });

	// Watch the Pomodoro timer state
	fixture.TimerState.Subscribe(
	    state => lastState = state,
	    () => isTimerStateDone = true);

	// Click the Start button
	fixture.Start.Execute(null);

	// Fast forward to 24 minutes in, the timer should *not* be done
	sched.RunToMilliseconds(24 * 60 * 1000);
	Assert.IsFalse(isTimerStateDone);

	// Let's go to 35 minutes
	sched.RunToMilliseconds(35 * 60 * 1000);

	// Make sure our model duration took 30 minutes(ish)
	TimeSpan pomodoroLength = 
            (fixture.Model.EndedAt.Value - fixture.Model.StartedAt.Value);

	pomodoroLength.TotalMinutes.AssertWithinEpsilonOf(30.0);
	Assert.IsTrue(isTimerStateDone);
    });
}