public async Task EmitTaskWithListener_NotNeedToSave_TheMethodWasCalled()
{
var mgr = new RecyclableMemoryStreamManager();
var req = CreateRequest(1);
var listener = new NullDownloadListener();
req.Listener = listener;
var saver = (NullSaver)req.Saver;
saver.IsNeedToSave = false;
var downloader = new ComicDownloader(mgr);
var res = downloader.EmitTasks(req);
await res[0]();
Assert.IsTrue(listener.IsNotNeedToSaveAsync);
}
public async Task EmitTaskWithListener_ListenerMethodWasCalled()
{
var mgr = new RecyclableMemoryStreamManager();
var req = CreateRequest(1);
var listener = new NullDownloadListener();
req.Listener = listener;
var downloader = new ComicDownloader(mgr);
var res = downloader.EmitTasks(req);
await res[0]();
Assert.IsTrue(listener.IsReadyFetchAsync);
Assert.IsTrue(listener.IsBeginFetchPageAsync);
Assert.IsTrue(listener.IsReadySaveAsync);
Assert.IsTrue(listener.IsEndFetchPageAsync);
Assert.IsTrue(listener.IsComplatedSaveAsync);
}
public async Task EmitTaskWithListener_Cancel_CancelListenerWasCalled()
{
var mgr = new RecyclableMemoryStreamManager();
var req = CreateRequest(1);
var listener = new NullDownloadListener();
req.Listener = listener;
var downloader = new ComicDownloader(mgr);
var tks = new CancellationTokenSource();
var res = downloader.EmitTasks(req, tks.Token);
tks.Cancel();
try
{
await res[0]();
}
catch (Exception) { }
Assert.IsTrue(listener.IsCanceledAsync);
}
public async Task EmitTaskWithListener_ThrowException_TheMethodWasCalled()
{
var sourceProvider = new ExceptionComicProvider();
var saver = new NullSaver();
var reqs = Enumerable.Range(0, 1)
.Select(x => new DownloadItemRequest(new ComicPage {
TargetUrl = "-no-"
}))
.ToArray();
var mgr = new RecyclableMemoryStreamManager();
var req = new ComicDownloadRequest(saver, null, null, reqs, sourceProvider);
var downloader = new ComicDownloader(mgr);
var listener = new NullDownloadListener();
req.Listener = listener;
var res = downloader.EmitTasks(req);
await res[0]();
Assert.IsTrue(listener.IsFetchPageExceptionAsync);
}