Question

使用套接字

建立连接时

错误：超出2000毫秒超时。对于异步测试和钩子，确保“完成（）“被调用;如果返回Promise，请确保它结算。

以下是相同

的代码参考

beforeEach(function(done) {    
    var socketOptions = {};
    var socket = io.connect("http://localhost:5000", socketOptions);
    socket.on('connect', function () {
         console.log('Connection Established');
         setTimeout(done, 500);
    });
    socket.on('error', function (err) {
        console.log('Connection Error', err);
        setTimeout(done, 500);
    });
});

在检查套接字连接的错误时，我收到了下面提到的错误：

Connection Error { Error: xhr poll error
at XHR.Transport.onError (F:\Projects\SDK\dynamicLocationServer\node_modules\engine.io-client\lib\transport.js:64:13)
at Request.<anonymous> (F:\Projects\SDK\dynamicLocationServer\node_modules\engine.io-client\lib\transports\polling-xhr.js:129:10)
at Request.Emitter.emit (F:\Projects\SDK\dynamicLocationServer\node_modules\engine.io-client\node_modules\component-emitter\index.js:133:20)
at Request.onError (F:\Projects\SDK\dynamicLocationServer\node_modules\engine.io-client\lib\transports\polling-xhr.js:307:8)
at Timeout._onTimeout (F:\Projects\SDK\dynamicLocationServer\node_modules\engine.io-client\lib\transports\polling-xhr.js:254:18)
at tryOnTimeout (timers.js:232:11)
at Timer.listOnTimeout (timers.js:202:5) type: 'TransportError', description:400}

Answer 1

通过更改socketOptions变量数据（如

）来解决问题

var socketOptions = {'transports': ['websocket']};

由于错误是在传输错误轮询上，我们需要指定传输方式作为选项，如使用套接字连接选项传递

错误：超出2000毫秒的超时。对于异步测试和钩子。用摩卡和柴进行单元测试

1 个答案: