public async Task ReadMessageAsync_MessageInMultiplePipeReads_ReadMessageData()
{
// Arrange
var messageData = new byte[]
{
0x00, // compression = 0
0x00,
0x00,
0x00,
0x01, // length = 1
0x10
};
var requestStream = new SyncPointMemoryStream();
var pipeReader = PipeReader.Create(requestStream);
// Act
var readTask = pipeReader.ReadSingleMessageAsync(TestServerCallContext).AsTask();
// Assert
foreach (var b in messageData)
{
Assert.IsFalse(readTask.IsCompleted, "Still waiting for data");
await requestStream.AddDataAndWait(new[] { b }).DefaultTimeout();
}
await requestStream.AddDataAndWait(Array.Empty <byte>()).DefaultTimeout();
var readMessageData = await readTask.DefaultTimeout();
// Assert
CollectionAssert.AreEqual(new byte[] { 0x10 }, readMessageData);
}
public async Task ReadSingleMessageAsync_AdditionalDataInSeparatePipeRead_ThrowError()
{
// Arrange
var requestStream = new SyncPointMemoryStream();
var pipeReader = PipeReader.Create(requestStream);
// Act
var readTask = pipeReader.ReadSingleMessageAsync(TestServerCallContext, Marshaller.ContextualDeserializer).AsTask();
// Assert
Assert.IsFalse(readTask.IsCompleted, "Still waiting for data");
await requestStream.AddDataAndWait(new byte[]
{
0x00, // compression = 0
0x00,
0x00,
0x00,
0x01, // length = 1
0x10
}).DefaultTimeout();
Assert.IsFalse(readTask.IsCompleted, "Still waiting for data");
await requestStream.AddDataAndWait(new byte[] { 0x00 }).DefaultTimeout();
var ex = await ExceptionAssert.ThrowsAsync <RpcException>(() => readTask).DefaultTimeout();
// Assert
Assert.AreEqual("Additional data after the message received.", ex.Status.Detail);
Assert.AreEqual(StatusCode.Internal, ex.StatusCode);
}
public async Task ReadStreamMessageAsync_MessageSplitAcrossReadsWithAdditionalData_ExamineMessageOnly()
{
// Arrange
var emptyMessage = new byte[]
{
0x00, // compression = 0
0x00,
0x00,
0x00,
0x00, // length = 0
0x00, // compression = 0
};
var followingMessage = new byte[]
{
0x00,
0x00,
0x00,
0x00, // length = 0
0x00, // extra data
};
var requestStream = new SyncPointMemoryStream(runContinuationsAsynchronously: false);
var pipeReader = new TestPipeReader(PipeReader.Create(requestStream));
var testServerCallContext = HttpContextServerCallContextHelper.CreateServerCallContext();
// Act 1
var messageData1Task = pipeReader.ReadStreamMessageAsync(testServerCallContext, TestDataMarshaller.ContextualDeserializer).AsTask();
await requestStream.AddDataAndWait(emptyMessage).DefaultTimeout();
// Assert 1
Assert.AreEqual(0, (await messageData1Task.DefaultTimeout()) !.Span.Length);
Assert.AreEqual(5, pipeReader.Consumed);
Assert.AreEqual(5, pipeReader.Examined);
// Act 2
var messageData2Task = pipeReader.ReadStreamMessageAsync(testServerCallContext, TestDataMarshaller.ContextualDeserializer).AsTask();
await requestStream.AddDataAndWait(followingMessage).DefaultTimeout();
// Assert 2
Assert.AreEqual(0, (await messageData2Task.DefaultTimeout()) !.Span.Length);
Assert.AreEqual(10, pipeReader.Consumed);
Assert.AreEqual(10, pipeReader.Examined);
// Act 3
var messageData3Task = pipeReader.ReadStreamMessageAsync(testServerCallContext, TestDataMarshaller.ContextualDeserializer).AsTask();
await requestStream.AddDataAndWait(Array.Empty <byte>()).DefaultTimeout();
// Assert 3
var ex = await ExceptionAssert.ThrowsAsync <RpcException>(() => messageData3Task).DefaultTimeout();
Assert.AreEqual("Incomplete message.", ex.Status.Detail);
Assert.AreEqual(10, pipeReader.Consumed);
Assert.AreEqual(11, pipeReader.Examined); // Examined ahead to ask for more data
}
public async Task ReadSingleMessageAsync_MessageInMultiplePipeReads_ReadMessageData()
{
// Arrange
var messageData = new byte[]
{
0x00, // compression = 0
0x00,
0x00,
0x00,
0x01, // length = 1
0x10
};
// Run continuations without async so ReadSingleMessageAsync immediately consumes added data
var requestStream = new SyncPointMemoryStream(runContinuationsAsynchronously: false);
var pipeReader = new TestPipeReader(PipeReader.Create(requestStream));
// Act
var readTask = pipeReader.ReadSingleMessageAsync(TestServerCallContext, Marshaller.ContextualDeserializer).AsTask();
// Assert
for (var i = 0; i < messageData.Length; i++)
{
var b = messageData[i];
var isLast = i == messageData.Length - 1;
Assert.IsFalse(readTask.IsCompleted, "Still waiting for data");
await requestStream.AddDataAndWait(new[] { b }).DefaultTimeout();
if (!isLast)
{
Assert.AreEqual(0, pipeReader.Consumed);
Assert.AreEqual(i + 1, pipeReader.Examined);
}
else
{
Assert.AreEqual(messageData.Length, pipeReader.Consumed); // Consumed message
Assert.AreEqual(messageData.Length, pipeReader.Examined);
}
}
await requestStream.AddDataAndWait(Array.Empty <byte>()).DefaultTimeout();
var readMessageData = await readTask.DefaultTimeout();
// Assert
CollectionAssert.AreEqual(new byte[] { 0x10 }, readMessageData);
}
