public async Task TestSlowDownload()
{
int executeChanged = 0;
var downloader = new EpisodeDownloaderStub();
var task = new Task(() => { });
downloader.SetReturnValue(task);
var underTest = new PodcastSeries("1", "testCollection", string.Empty, "A test collection", downloader);
underTest.DownloadHander.CanExecuteChanged += (_, __) => executeChanged++;
PodcastEpisode episode = new PodcastEpisode("2", "title", "subtitle", string.Empty, "http://nowhere.com/episode1.mp3", "This is a podcast", underTest);
underTest.Items.Add(episode);
underTest.SelectedEpisodes.Add(episode);
underTest.DownloadHander.Execute(null);
Assert.AreEqual(1, executeChanged);
Assert.AreEqual(1, underTest.SelectedEpisodes.Count);
task.Start();
// want to await the ownded task.
// check the result
await underTest.ActiveDownload;
Assert.AreEqual(2, executeChanged);
Assert.AreEqual(0, underTest.SelectedEpisodes.Count);
}
public async Task TestErrorDownload()
{
int executeChanged = 0;
var downloader = new EpisodeDownloaderStub();
var task = new Task(() => { throw new InvalidOperationException("Well, that failed"); });
downloader.SetReturnValue(task);
var underTest = new PodcastSeries("1", "testCollection", string.Empty, "A test collection", downloader);
underTest.DownloadHander.CanExecuteChanged += (_, __) => executeChanged++;
PodcastEpisode episode = new PodcastEpisode("2", "title", "subtitle", string.Empty, "http://nowhere.com/episode1.mp3", "This is a podcast", underTest);
underTest.Items.Add(episode);
underTest.SelectedEpisodes.Add(episode);
underTest.DownloadHander.Execute(null);
Assert.AreEqual(1, executeChanged);
Assert.AreEqual(1, underTest.SelectedEpisodes.Count);
task.Start();
// want to await the ownded task.
// check the result
try
{
await underTest.ActiveDownload;
Assert.Fail("Exception not generated");
}
catch (InvalidOperationException)
{
return;
}
}