feat: 完善后端脚手架基础能力

modules/ws/controller_test.go

@@ -0,0 +1,47 @@
+package ws
+
+import (
+	"net/http/httptest"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/gorilla/websocket"
+)
+
+func TestControllerConnectAndBroadcast(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	hub := NewHub()
+	controller := NewController(hub)
+	router := gin.New()
+	router.GET("/ws", controller.Connect)
+	server := httptest.NewServer(router)
+	defer server.Close()
+
+	url := "ws" + strings.TrimPrefix(server.URL, "http") + "/ws?room=test&client_id=tester"
+	conn, _, err := websocket.DefaultDialer.Dial(url, nil)
+	if err != nil {
+		t.Fatalf("Dial() error = %v", err)
+	}
+	defer conn.Close()
+	_ = conn.SetReadDeadline(time.Now().Add(2 * time.Second))
+
+	// 连接后依次收到 welcome 和 joined presence。
+	for i := 0; i < 2; i++ {
+		var message OutgoingMessage
+		if err := conn.ReadJSON(&message); err != nil {
+			t.Fatalf("initial ReadJSON() error = %v", err)
+		}
+	}
+	if err := conn.WriteJSON(IncomingMessage{Type: EventMessage, Data: "hello"}); err != nil {
+		t.Fatalf("WriteJSON() error = %v", err)
+	}
+	var message OutgoingMessage
+	if err := conn.ReadJSON(&message); err != nil {
+		t.Fatalf("ReadJSON() error = %v", err)
+	}
+	if message.Type != EventMessage || message.Data != "hello" || message.Room != "test" {
+		t.Fatalf("unexpected broadcast: %+v", message)
+	}
+}