public async Task WhenInvalidatingDuringAnUpdate_DoesSomething()
{
await _sut.GetLatestProjectionTime();
Thread.Sleep(_expiration.Add(TimeSpan.FromSeconds(0.25))); // Expire
await _sut.GetLatestProjectionTime(); // Trigger update
Thread.Sleep(TimeSpan.FromMilliseconds(_updateDuration.TotalMilliseconds / 2)); // Updating now
Assert.ThrowsAsync <InvalidStateTransitionException>(() => _sut.InvalidateProjection()); // Mark as Expired during Updating state
}
public override async Task AfterEnter()
{
// Expire after the specified amount of time
await Task.Factory.StartNew(async() => {
await _sleeper
.Sleep(_timeout)
.ContinueWith(previous => _projectionSystem.InvalidateProjection())
.ConfigureAwait(false);
}, CancellationToken.None, TaskCreationOptions.LongRunning, _taskScheduler)
.ConfigureAwait(false);
}