test: add timout to let the server bind

Author: fatih

websocketproxy_test.go

@@ -5,12 +5,13 @@ import (
 	"net/http"
 	"net/url"
 	"testing"
+	"time"
 
 	"github.com/gorilla/websocket"
 )
 
 var (
-	serverURL  = "ws://localhost:7777"
+	serverURL  = "ws://127.0.0.1:7777"
 	backendURL = "ws://127.0.0.1:8888"
 )
 
@@ -29,6 +30,8 @@ func TestProxy(t *testing.T) {
 		}
 	}()
 
+	time.Sleep(time.Millisecond * 100)
+
 	// backend echo server
 	go func() {
 		mux2 := http.NewServeMux()
@@ -53,9 +56,10 @@ func TestProxy(t *testing.T) {
 		if err != nil {
 			t.Fatal("ListenAndServe: ", err)
 		}
-
 	}()
 
+	time.Sleep(time.Millisecond * 100)
+
 	// frontend server, dial now our proxy, which will reverse proxy our
 	// message to the backend websocket server.
 	conn, _, err := websocket.DefaultDialer.Dial(serverURL+"/proxy", nil)