public async Task ConsumeOutputException()
{
// Setup: Create a mock message writer
var mw = new Mock <MessageWriter>(Stream.Null);
mw.Setup(o => o.WriteMessage(It.IsAny <Message>())).Returns(Task.FromResult(true));
// If: I start the output consumption thread with a completed blocking collection
var jh = new JsonRpcHost(GetChannelBase(null, mw.Object).Object);
jh.outputQueue.CompleteAdding();
await jh.ConsumeOutput().WithTimeout(TimeSpan.FromSeconds(1));
// Then: The message writer should not have been called
mw.Verify(o => o.WriteMessage(It.IsAny <Message>()), Times.Never);
}
public async Task ConsumeOutputCancelled()
{
// NOTE: This test validates that the blocking collection breaks out when cancellation is requested
// Setup: Create a mock message writer
var mw = new Mock <MessageWriter>(Stream.Null);
mw.Setup(o => o.WriteMessage(It.IsAny <Message>())).Returns(Task.FromResult(true));
// If:
// ... I start the output consumption thread
var jh = new JsonRpcHost(GetChannelBase(null, mw.Object).Object);
Task consumeOuputTask = jh.ConsumeOutput();
// ... and I stop the thread via cancellation and wait for completion
jh.cancellationTokenSource.Cancel();
await consumeOuputTask.WithTimeout(TimeSpan.FromSeconds(1));
// Then: The message writer should not have been called
mw.Verify(o => o.WriteMessage(It.IsAny <Message>()), Times.Never);
}
public async Task ConsumeOutput()
{
// Setup:
// ... Create a mock message writer
var mw = new Mock <MessageWriter>(Stream.Null);
mw.Setup(o => o.WriteMessage(CommonObjects.ResponseMessage)).Returns(Task.FromResult(true));
// ... Create the JSON RPC host and add an item to the output queue
var jh = new JsonRpcHost(GetChannelBase(null, mw.Object).Object);
jh.outputQueue.Add(CommonObjects.ResponseMessage);
jh.outputQueue.CompleteAdding(); // This will cause the thread to stop after processing the items
// If: I start the output consumption thread
Task consumeOutputTask = jh.ConsumeOutput();
await consumeOutputTask.WithTimeout(TimeSpan.FromSeconds(1));
// Then: The message writer should have been called once
mw.Verify(o => o.WriteMessage(CommonObjects.ResponseMessage), Times.Once);
}