public async Task DequeueAsync_ReturnTaskInGoodOrder()
{
var backgroundTasksQueue = new BackgroundTasksQueue();
var tmp = 0;
backgroundTasksQueue.QueueBackgroundTask((sp, ct) =>
{
tmp = 1;
return(Task.CompletedTask);
});
backgroundTasksQueue.QueueBackgroundTask((sp, ct) =>
{
tmp = 2;
return(Task.CompletedTask);
});
Assert.Equal(0, tmp);
var backgroundTaskItem1 = await backgroundTasksQueue.DequeueAsync();
await backgroundTaskItem1.Delegate.Invoke(null, default);
Assert.Equal(1, tmp);
var backgroundTaskItem2 = await backgroundTasksQueue.DequeueAsync();
await backgroundTaskItem2.Delegate.Invoke(null, default);
Assert.Equal(2, tmp);
}
public async Task QueueBackgroundTask_CancelTask_Timeout()
{
var backgroundTasksQueue = new BackgroundTasksQueue();
var cancelled = false;
Boolean?completed = null;
backgroundTasksQueue.QueueBackgroundTask(async(sp, ct) =>
{
try
{
await Task.Delay(10000, ct);
completed = true;
}
catch (TaskCanceledException)
{
cancelled = true;
}
}, TimeSpan.FromMilliseconds(1));
var backgroundTaskItem = await backgroundTasksQueue.DequeueAsync();
await backgroundTaskItem.Delegate.Invoke(null, backgroundTaskItem.CancellationToken);
Assert.True(cancelled);
Assert.True(!completed.HasValue);
}
public void QueueBackgroundTask_ThrowArgumentNullException_TaskIsNull()
{
var backgroundTasksQueue = new BackgroundTasksQueue();
Assert.Throws <ArgumentNullException>(() => backgroundTasksQueue.QueueBackgroundTask(null));
}
public void QueueBackgroundTask_ArgumentsAreOk()
{
var backgroundTasksQueue = new BackgroundTasksQueue();
backgroundTasksQueue.QueueBackgroundTask((sp, ct) => Task.CompletedTask);
}