public async Task CreatingStreamShouldEmitHeaders()
{
var inPipe = new BufferedPipe(1024);
var outPipe = new BufferedPipe(1024);
var conn = await ConnectionUtils.BuildEstablishedConnection(
false, inPipe, outPipe, loggerProvider);
var stream1Task = conn.CreateStreamAsync(DefaultGetHeaders, false);
var stream1 = await stream1Task;
Assert.Equal(StreamState.Open, stream1.State);
Assert.Equal(1u, stream1.Id);
var fh = await outPipe.ReadFrameHeaderWithTimeout();
Assert.Equal(1u, fh.StreamId);
Assert.Equal(FrameType.Headers, fh.Type);
Assert.Equal((byte)HeadersFrameFlags.EndOfHeaders, fh.Flags);
Assert.Equal(EncodedDefaultGetHeaders.Length, fh.Length);
var hdrData = new byte[fh.Length];
await outPipe.ReadWithTimeout(new ArraySegment <byte>(hdrData));
Assert.Equal(EncodedDefaultGetHeaders, hdrData);
var stream3Task = conn.CreateStreamAsync(DefaultGetHeaders, true);
var stream3 = await stream3Task;
Assert.Equal(StreamState.HalfClosedLocal, stream3.State);
Assert.Equal(3u, stream3.Id);
fh = await outPipe.ReadFrameHeaderWithTimeout();
Assert.Equal(3u, fh.StreamId);
Assert.Equal(FrameType.Headers, fh.Type);
Assert.Equal(
(byte)(HeadersFrameFlags.EndOfHeaders | HeadersFrameFlags.EndOfStream),
fh.Flags);
Assert.Equal(EncodedIndexedDefaultGetHeaders.Length, fh.Length);
var hdrData3 = new byte[fh.Length];
await outPipe.ReadWithTimeout(new ArraySegment <byte>(hdrData3));
Assert.Equal(EncodedIndexedDefaultGetHeaders, hdrData3);
}
public async Task CreatedStreamsShouldAlwaysUseIncreasedStreamIds(
int nrStreams)
{
// This test checks if there are race conditions in the stream
// establish code
var inPipe = new BufferedPipe(10 * 1024);
var outPipe = new BufferedPipe(10 * 1024);
var conn = await ConnectionUtils.BuildEstablishedConnection(
false, inPipe, outPipe, loggerProvider);
var createStreamTasks = new Task <IStream> [nrStreams];
for (var i = 0; i < nrStreams; i++)
{
// Create the task in the threadpool
var t = Task.Run(
() => conn.CreateStreamAsync(DefaultGetHeaders, false));
createStreamTasks[i] = t;
}
// Wait until all streams are open
await Task.WhenAll(createStreamTasks);
var streams = createStreamTasks.Select(t => t.Result).ToList();
// Check output data
// Sequence IDs must be always increasing
var buffer = new byte[Settings.Default.MaxFrameSize];
for (var i = 0; i < nrStreams; i++)
{
var expectedId = 1u + 2 * i;
var fh = await outPipe.ReadFrameHeaderWithTimeout();
Assert.Equal(expectedId, fh.StreamId);
Assert.Equal(FrameType.Headers, fh.Type);
Assert.Equal((byte)HeadersFrameFlags.EndOfHeaders, fh.Flags);
// Discard header data
await outPipe.ReadWithTimeout(
new ArraySegment <byte>(buffer, 0, fh.Length));
}
}
