public async Task WebSocketWorks()
{
// Arrange
// This logger will attempt to access information from HttpRequest once the HttpContext is created
var logger = new VerifierLogger();
RequestDelegate appDelegate = async ctx =>
{
if (ctx.WebSockets.IsWebSocketRequest)
{
var websocket = await ctx.WebSockets.AcceptWebSocketAsync();
var receiveArray = new byte[1024];
while (true)
{
var receiveResult = await websocket.ReceiveAsync(new System.ArraySegment <byte>(receiveArray), CancellationToken.None);
if (receiveResult.MessageType == WebSocketMessageType.Close)
{
await websocket.CloseAsync(WebSocketCloseStatus.NormalClosure, "Normal Closure", CancellationToken.None);
break;
}
else
{
var sendBuffer = new System.ArraySegment <byte>(receiveArray, 0, receiveResult.Count);
await websocket.SendAsync(sendBuffer, receiveResult.MessageType, receiveResult.EndOfMessage, CancellationToken.None);
}
}
}
};
var builder = new WebHostBuilder()
.ConfigureServices(services =>
{
services.AddSingleton <ILogger <IWebHost> >(logger);
})
.Configure(app =>
{
app.Run(appDelegate);
});
var server = new TestServer(builder);
// Act
var client = server.CreateWebSocketClient();
// The HttpContext will be created and the logger will make sure that the HttpRequest exists and contains reasonable values
var clientSocket = await client.ConnectAsync(new System.Uri("http://localhost"), CancellationToken.None);
var hello = Encoding.UTF8.GetBytes("hello");
await clientSocket.SendAsync(new System.ArraySegment <byte>(hello), WebSocketMessageType.Text, true, CancellationToken.None);
var world = Encoding.UTF8.GetBytes("world!");
await clientSocket.SendAsync(new System.ArraySegment <byte>(world), WebSocketMessageType.Binary, true, CancellationToken.None);
await clientSocket.CloseOutputAsync(WebSocketCloseStatus.NormalClosure, "Normal Closure", CancellationToken.None);
// Assert
Assert.Equal(WebSocketState.CloseSent, clientSocket.State);
var buffer = new byte[1024];
var result = await clientSocket.ReceiveAsync(new System.ArraySegment <byte>(buffer), CancellationToken.None);
Assert.Equal(hello.Length, result.Count);
Assert.True(hello.SequenceEqual(buffer.Take(hello.Length)));
Assert.Equal(WebSocketMessageType.Text, result.MessageType);
result = await clientSocket.ReceiveAsync(new System.ArraySegment <byte>(buffer), CancellationToken.None);
Assert.Equal(world.Length, result.Count);
Assert.True(world.SequenceEqual(buffer.Take(world.Length)));
Assert.Equal(WebSocketMessageType.Binary, result.MessageType);
result = await clientSocket.ReceiveAsync(new System.ArraySegment <byte>(buffer), CancellationToken.None);
Assert.Equal(WebSocketMessageType.Close, result.MessageType);
Assert.Equal(WebSocketState.Closed, clientSocket.State);
clientSocket.Dispose();
}
