public void DownloadFile_RemovesDownloadsFromDownloadDictionaryOnCompletion()
{
TestScheduler testScheduler = new TestScheduler();
ITestableObservable <double> testObservable = testScheduler.CreateColdObservable(new Recorded <Notification <double> >(1, Notification.CreateOnCompleted <double>()));
ITestableObservable <double> testObservable2 = testScheduler.CreateColdObservable(new Recorded <Notification <double> >(1, Notification.CreateOnCompleted <double>()));
IHttpService httpService = Substitute.For <IHttpService>();
IStorage storage = Substitute.For <IStorage>();
var downloadManager = new Managers.DownloadManager(httpService, storage);
for (int i = 0; i < downloadManager.NumberOfConcurrentDownloads + 1; ++i)
{
string url = $"http://www.someplace.com/file_{i}.bin";
if (i < downloadManager.NumberOfConcurrentDownloads)
{
httpService.DownloadFileAsync(url, Arg.Any <string>(), Arg.Any <Stream>()).Returns(testObservable);
}
else
{
httpService.DownloadFileAsync(url, Arg.Any <string>(), Arg.Any <Stream>())
.Returns(testObservable2);
}
var download = downloadManager.DownloadFile(url);
}
testScheduler.AdvanceBy(1);
Assert.AreEqual(1, downloadManager.CurrentDownloadDictionary.Count);
}
public void DownloadFile_DownloadRemovedOnFailure()
{
TestScheduler testScheduler = new TestScheduler();
ITestableObservable <double> testObservable = testScheduler.CreateColdObservable(new Recorded <Notification <double> >(1, Notification.CreateOnError <double>(new TestException())),
new Recorded <Notification <double> >(2, Notification.CreateOnError <double>(new TestException())),
new Recorded <Notification <double> >(3, Notification.CreateOnError <double>(new TestException())));
IStorage storage = Substitute.For <IStorage>();
IHttpService httpService = Substitute.For <IHttpService>();
httpService.DownloadFileAsync(Arg.Any <string>(), Arg.Any <string>(), Arg.Any <Stream>())
.Returns(testObservable);
var downloadManager = new Managers.DownloadManager(httpService, storage);
downloadManager.MaxRetryCount = 3;
string url = "http://www.someplace.com/file.bin";
var download = downloadManager.DownloadFile(url);
testScheduler.AdvanceBy(1);
testScheduler.AdvanceBy(1);
testScheduler.AdvanceBy(1);
var queueDownload = downloadManager.DownloadQueue.FirstOrDefault();
Assert.IsNull(queueDownload);
}
public void DownloadFile_ReturnsExistingDownload()
{
IStorage storage = Substitute.For <IStorage>();
IHttpService httpService = Substitute.For <IHttpService>();
httpService.DownloadFileAsync(Arg.Any <string>(), Arg.Any <string>(), Arg.Any <Stream>())
.Returns(Observable.Never(0.5));
var downloadManager = new Managers.DownloadManager(httpService, storage);
string url = "http://www.someplace.com/file.bin";
var download = downloadManager.DownloadFile(url);
var secondDownload = downloadManager.DownloadFile(url);
Assert.AreSame(download, secondDownload);
}
public void DownloadFile_StartsDownload()
{
IHttpService httpService = Substitute.For <IHttpService>();
httpService.DownloadFileAsync(Arg.Any <string>(), Arg.Any <string>(), Arg.Any <Stream>())
.Returns(Observable.Never(0.5));
IStorage storage = Substitute.For <IStorage>();
var downloadManager = new Managers.DownloadManager(httpService, storage);
string url = "http://www.someplace.com/file.bin";
var download = downloadManager.DownloadFile(url);
KeyValuePair <string, Tuple <IDisposable, IDownload> > queueDownload = downloadManager.CurrentDownloadDictionary.FirstOrDefault();
Assert.AreSame(download, queueDownload.Value.Item2);
}
public void CancelDownload_WithDownloadObject_RemovesDownload()
{
IHttpService httpService = Substitute.For <IHttpService>();
httpService.DownloadFileAsync(Arg.Any <string>(), Arg.Any <string>(), Arg.Any <Stream>())
.Returns(Observable.Never(0.5));
IStorage storage = Substitute.For <IStorage>();
var downloadManager = new Managers.DownloadManager(httpService, storage);
string url = $"http://www.someplace.com/file.bin";
var download = downloadManager.DownloadFile(url);
downloadManager.CancelDownload(download);
var removedDownload = downloadManager.DownloadQueue.FirstOrDefault(x => x.Url == url);
Assert.Null(removedDownload);
}
public void DownloadFile_DoesNotRunMoreDownloadsThenNumberOfConcurrentDownloads()
{
TestScheduler testScheduler = new TestScheduler();
ITestableObservable <double> testObservable = testScheduler.CreateColdObservable(new Recorded <Notification <double> >(1, Notification.CreateOnError <double>(new TestException())));
IHttpService httpService = Substitute.For <IHttpService>();
httpService.DownloadFileAsync(Arg.Any <string>(), Arg.Any <string>(), Arg.Any <Stream>())
.Returns(testObservable);
IStorage storage = Substitute.For <IStorage>();
var downloadManager = new Managers.DownloadManager(httpService, storage);
for (int i = 0; i < downloadManager.NumberOfConcurrentDownloads + 1; ++i)
{
string url = $"http://www.someplace.com/file_{i}.bin";
var download = downloadManager.DownloadFile(url);
}
Assert.AreEqual(1, downloadManager.DownloadQueue.Count);
}
public async Task DownloadFile_Download_ReportsCorrectProgressWhenContentLengthIsKnown()
{
TestScheduler testScheduler = new TestScheduler();
ITestableObservable <double> testObservable = testScheduler.CreateColdObservable(new Recorded <Notification <double> >(1, Notification.CreateOnNext(0.1)),
new Recorded <Notification <double> >(2, Notification.CreateOnNext(0.2)),
new Recorded <Notification <double> >(3, Notification.CreateOnNext(0.3)),
new Recorded <Notification <double> >(4, Notification.CreateOnNext(0.4)),
new Recorded <Notification <double> >(5, Notification.CreateOnNext(0.5)));
IHttpService httpService = Substitute.For <IHttpService>();
IStorage storage = Substitute.For <IStorage>();
httpService.DownloadFileAsync(Arg.Any <string>(), Arg.Any <string>(), Arg.Any <Stream>())
.Returns(testObservable);
var downloadManager = new Managers.DownloadManager(httpService, storage);
TaskCompletionSource <bool> taskCompletionSource = new TaskCompletionSource <bool>();
string url = $"http://www.someplace.com/file.bin";
var download = downloadManager.DownloadFile(url);
List <double> results = new List <double>();
download.Progress.Subscribe(d =>
{
results.Add(d);
if (results.Count == 5)
{
taskCompletionSource.TrySetResult(true);
}
});
testScheduler.AdvanceBy(5);
CancellationTokenSource cancellationTokenSource = new CancellationTokenSource(TimeSpan.FromSeconds(1));
cancellationTokenSource.Token.Register(() =>
{ taskCompletionSource.TrySetCanceled(); });
var result = await taskCompletionSource.Task;
Assert.AreEqual(6, results.Count);
}