public void GoodPipe_WritesDataAndRaisesStateHealthy()
{
const string inputMessage = "FooBar";
byte[] expectedData =
{
0x46, 0x6F, 0x6F, 0x42, 0x61, 0x72, (byte)'\n', // "FooBar\n"
0x46, 0x6F, 0x6F, 0x42, 0x61, 0x72, (byte)'\n', // "FooBar\n"
0x46, 0x6F, 0x6F, 0x42, 0x61, 0x72, (byte)'\n', // "FooBar\n"
};
string pipeName = Guid.NewGuid().ToString("N");
// Capture event invocations
Mock <IQueuedPipeStringWriterEventSink> eventSink = new Mock <IQueuedPipeStringWriterEventSink>();
QueuedPipeStringWriter writer = new QueuedPipeStringWriter(
() => new NamedPipeClientStream(".", pipeName, PipeDirection.Out),
eventSink.Object);
using (TestPipeReaderWorker pipeWorker = new TestPipeReaderWorker(pipeName, PipeTransmissionMode.Byte))
{
// Start the pipe reader worker first and wait until the pipe server has been stood-up
// before starting the pipe writer/enqueuing messages because the writer does not wait
// for the pipe to be ready to accept (it returns and drops messages immediately).
pipeWorker.Start();
pipeWorker.WaitForReadyToAccept();
writer.Start();
// Try to write some dummy data
bool queueOk1 = writer.TryEnqueue(inputMessage);
bool queueOk2 = writer.TryEnqueue(inputMessage);
bool queueOk3 = writer.TryEnqueue(inputMessage);
// Wait until we've received all the sent messages before shuting down
// the pipe worker thread.
pipeWorker.WaitForRecievedBytes(count: expectedData.Length);
pipeWorker.Stop();
writer.Stop();
queueOk1.ShouldBeTrue();
queueOk2.ShouldBeTrue();
queueOk3.ShouldBeTrue();
byte[] actualData = pipeWorker.GetReceivedDataSnapshot();
CollectionAssert.AreEqual(expectedData, actualData);
// Should only receive one 'healthy' state change per successfully written message
eventSink.Verify(
x => x.OnStateChanged(writer, QueuedPipeStringWriterState.Healthy, It.IsAny <Exception>()),
Times.Once);
eventSink.Verify(
x => x.OnStateChanged(writer, QueuedPipeStringWriterState.Stopped, It.IsAny <Exception>()),
Times.Once);
}
}
public void Stop_RaisesStateStopped()
{
// Capture event invocations
Mock <IQueuedPipeStringWriterEventSink> eventSink = new Mock <IQueuedPipeStringWriterEventSink>();
// createPipeFunc returns `null` since the test will never enqueue any messaged to write
QueuedPipeStringWriter writer = new QueuedPipeStringWriter(
() => null,
eventSink.Object);
// Try to write some dummy data
writer.Start();
writer.Stop();
eventSink.Verify(
x => x.OnStateChanged(writer, QueuedPipeStringWriterState.Stopped, null),
Times.Once);
}
