public void DownloadStreamsCertainData_For_SpecifiedRange()
{
var bytesRange = new BytesRange
{
Start = 100,
End = 200
};
var inputData = CreateRandomData(1024);
var inputDataStream = new MemoryStream(inputData, false);
var baseHttpDownloader = new BaseHttpDownloader("http://test_url.com", 10000,
MockHttpClient(inputDataStream, HttpStatusCode.OK), Substitute.For <ILogger>());
var outputDataStream = new MemoryStream(inputData.Length);
baseHttpDownloader.DataAvailable += (data, length) =>
{
Assert.IsTrue(length > 0, "Data length passed in DataAvailable event is not more than zero.");
outputDataStream.Write(data, 0, length);
};
baseHttpDownloader.SetBytesRange(bytesRange);
baseHttpDownloader.Download(CancellationToken.Empty);
outputDataStream.Seek(0, SeekOrigin.Begin);
ValidateOutput(inputData, outputDataStream, bytesRange);
}
public void DownloadRange()
{
const int bytesStartRange = 100;
const int bytesEndRange = 200;
var inputData = CreateRandomData(1024);
var inputDataStream = new MemoryStream(inputData, false);
var baseHttpDownloader = new BaseHttpDownloader("someurl", 10000, 64,
url => MockRequest(inputDataStream, HttpStatusCode.OK));
var outputDataStream = new MemoryStream(inputData.Length);
baseHttpDownloader.DataAvailable += (data, length) =>
{
Assert.IsTrue(length > 0, "Data length passed in DataAvailable event is not more than zero.");
outputDataStream.Write(data, 0, length);
};
baseHttpDownloader.SetBytesRange(bytesStartRange, bytesEndRange);
baseHttpDownloader.Download(CancellationToken.Empty);
outputDataStream.Seek(0, SeekOrigin.Begin);
ValidateOutput(inputData, outputDataStream, bytesStartRange, bytesEndRange);
}
public void EmptyDataStream()
{
var baseHttpDownloader = new BaseHttpDownloader("someurl", 10000, 64,
url => MockRequest(null, HttpStatusCode.OK));
Assert.Catch <DownloaderException>(() => baseHttpDownloader.Download(CancellationToken.Empty));
}
public void DownloadThrowsException_For_Status500()
{
var inputData = CreateRandomData(1024);
var inputDataStream = new MemoryStream(inputData, false);
var baseHttpDownloader = new BaseHttpDownloader("http://test_url.com", 10000,
MockHttpClient(inputDataStream, HttpStatusCode.InternalServerError), Substitute.For <ILogger>());
Assert.Catch <ServerErrorException>(() => baseHttpDownloader.Download(CancellationToken.Empty));
}
public void InvalidResponse()
{
var inputData = CreateRandomData(1024);
var inputDataStream = new MemoryStream(inputData, false);
var baseHttpDownloader = new BaseHttpDownloader("someurl", 10000, 64,
url => MockRequest(inputDataStream, HttpStatusCode.BadRequest));
Assert.Catch <DownloaderException>(() => baseHttpDownloader.Download(CancellationToken.Empty));
}
public void DownloadThrowsException_For_WebException()
{
var httpClient = Substitute.For <IHttpClient>();
httpClient.Get(Arg.Any <HttpGetRequest>()).Returns(_ =>
{
throw new WebException();
});
var baseHttpDownloader = new BaseHttpDownloader("http://test_url.com", 10000, httpClient, Substitute.For <ILogger>());
Assert.Catch <ConnectionFailureException>(() => baseHttpDownloader.Download(CancellationToken.Empty));
}