使用ClientWebSocket .net核心测试TestHost.WebSocketClient

Question

我必须按照建立在.net中核心的WebSocket的Web应用程序这个和这个或这个教程。 现在，我正在尝试使用Microsoft.AspNetCore.TestHost对此进行一些集成测试

我创建WebSocket的方式

public static WebSocketClient StartWebSocketServer(string url)
{
    var baseAddress = $"http://{url}";
    var builder =
        WebHost.CreateDefaultBuilder(new string[]{})
            .UseEnvironment("Development")
            .ConfigureLogging((ctx, logging) => logging.AddConsole())
            .UseUrls(baseAddress)
            .UseStartup<SocketsTestStartup>();

    var server = new TestServer(builder);
    return server.CreateWebSocketClient();
}

Websocket客户端的创建在下面的代码中完成

ClientWebSocket testAppClient = new ClientWebSocket();
await
    testAppClient 
    .ConnectAsync(
        new Uri("ws://loclahost:52015/local"),
        CancellationToken.None);

local是websocket服务器上的路径名

Startup.cs

app.MapWebSocketManager(
    "/local",
    serviceProvider.GetService<LocalServiceSocketHandler>());

无论如何，连接产生以下错误

System.Net.WebSockets.WebSocketException : Unable to connect to the remote server

我的问题是如何让ClientWebSocket连接到TestHost.WebSocketClient ？

Answer 1

我使用以下代码来运行WebSocket Web应用程序，而不是TestServer。

public static IWebHost CreateServer(int port)
{
    var configBuilder = new ConfigurationBuilder();
    configBuilder.AddInMemoryCollection();
    var config = configBuilder.Build();
    config["server.urls"] = $"http://localhost:{port}";

    var host = new WebHostBuilder()
        .ConfigureLogging((ctx, logging) => logging.AddDebug())
        .UseConfiguration(config)
        .UseKestrel()
        .UseStartup<SocketsTestStartup>()
        .Build();

    host.Start();

    return host;
}

基本上，我从aspnet / WebSockets测试中找到了解决方案

Answer 2

使用TestServer，下面的代码可以最终达到目的，以防万一它可能对其他人有所帮助，下面是代码：

var builder = WebHost.CreateDefaultBuilder()
                .UseStartup<Startup>()
                .UseEnvironment("Development");

var server = new TestServer(builder);
var wsClient = server.CreateWebSocketClient();

var wsUri = new UriBuilder(server.BaseAddress) 
{
    Scheme = "ws"
}.Uri;

await wsClient.ConnectAsync(wsUri, CancellationToken.None);

但是由于原始问题是使用路径/local因此只需要指定Path属性即可：

var wsUri = new UriBuilder(server.BaseAddress) 
{
    Scheme = "ws",

    Path = "local"
}.Uri;

Answer 3

该代码在我们开发的企业级应用程序中对我有用（请在此处查看所有代码： https : //github.com/saturn72/Programmer ）

//Create test server    
var server = new TestServer(builder);

//create websocket client, connect it and to server 
var wsc = server.CreateWebSocketClient();
var uri = new Uri(BaseUri, "ws");
var webSocket = wsc.ConnectAsync(uri, CancellationToken.None).Result;
var buffer = WebSocket.CreateClientBuffer(1024, 1024);

//Start receive data
Task.Run(()=> WebSocket.ReceiveAsync(_buffer, CancellationToken.None));

切记它是async ，您需要在测试中设置一些延迟