public new async Task CanDownloadFilesAsync()
{
QDownloader = GetQueueDownloader();
await QDownloader.DownloadAsync(GetDefaultSpec());
VerifyAsyncDownloads();
}
public new void CanCancelDownloadFilesAsync()
{
var token = new CancellationTokenSource();
QDownloader = GetQueueDownloader();
token.Cancel();
Func <Task> act = () => QDownloader.DownloadAsync(GetDefaultSpec(), token.Token);
act.ShouldThrow <OperationCanceledException>();
token.Dispose();
}