public void Close_DisconnectsStreamAsync()
{
var pipeName = Guid.NewGuid().ToString();
var readStream = new NamedPipeServerStream(pipeName, PipeDirection.In, NamedPipeServerStream.MaxAllowedServerInstances, PipeTransmissionMode.Byte, PipeOptions.WriteThrough | PipeOptions.Asynchronous);
var writeStream = new NamedPipeClientStream(".", pipeName, PipeDirection.Out, PipeOptions.WriteThrough | PipeOptions.Asynchronous);
new StreamingRequestHandler(new Microsoft.Bot.Streaming.UnitTests.Mocks.MockBot(), new BotFrameworkHttpAdapter(), pipeName);
var reader = new NamedPipeClient(pipeName);
var writer = new NamedPipeServer(pipeName, new StreamingRequestHandler(new MockBot(), new BotFrameworkHttpAdapter(), pipeName));
try
{
reader.ConnectAsync();
writer.StartAsync();
readStream.WaitForConnectionAsync().ConfigureAwait(false);
writeStream.ConnectAsync(500).ConfigureAwait(false);
writer.Disconnect();
reader.Disconnect();
}
finally
{
readStream.Dispose();
writeStream.Dispose();
}
Assert.False(reader.IsConnected);
}
static async Task StartStringLengthServer()
{
var server = new NamedPipeServer <string, int>("string_length", (txt) => txt.Length);
server.OnRequestReceived += (o, e) => Console.WriteLine($"request: {e}");
server.OnResponseSended += (o, e) => Console.WriteLine($"response: {e}");
var source = new CancellationTokenSource();
await server.StartAsync(source.Token);
}
public async Task DisconnectWorksAsIntendedAsync()
{
// Truncating GUID to make sure the full path does not exceed 104 characters.
var pipeName = Guid.NewGuid().ToString().Substring(0, 18);
var readStream = new NamedPipeServerStream(pipeName, PipeDirection.In, NamedPipeServerStream.MaxAllowedServerInstances, PipeTransmissionMode.Byte, PipeOptions.WriteThrough | PipeOptions.Asynchronous);
var writeStream = new NamedPipeClientStream(".", pipeName, PipeDirection.Out, PipeOptions.WriteThrough | PipeOptions.Asynchronous);
new StreamingRequestHandler(new MockBot(), new BotFrameworkHttpAdapter(), pipeName);
var reader = new NamedPipeClient(pipeName);
var writer = new NamedPipeServer(pipeName, new StreamingRequestHandler(new MockBot(), new BotFrameworkHttpAdapter(), pipeName));
try
{
// The ConnectAsync task returns only after the connection has been disposed.
// In this context it makes for ugly code, but in the context of blocking an HTTP
// response until the the streaming connection has ended it creates an easier to
// follow user experience.
var connectTask = reader.ConnectAsync();
await writer.StartAsync();
// The writeStream can only connect to the readStream if the readStream is listening for new connections.
// This creates a dependency between the two tasks below, requiring the two to be running in parallel until
// the readStream receives an incoming connection and the writeStream establishes an outgoing connection.
await Task.WhenAll(readStream.WaitForConnectionAsync(), writeStream.ConnectAsync());
// Assert that the reader is now connected.
Assert.True(reader.IsConnected, "Reader failed to connect.");
// The line we're actually testing.
reader.Disconnect();
// Assert that the reader and writer are no longer connected
Assert.False(reader.IsConnected, "Reader did not disconnect.");
}
finally
{
readStream.Dispose();
writeStream.Dispose();
}
}
