优化结构

internal/integration/mq/emqx_test.go

@@ -12,10 +12,10 @@ import (
 )
 
 type fakeClient struct {
-	subscribed       []string
-	unsubscribed     []string
-	handlers         map[string]platformmq.Handler
-	subscribeErrors  map[string]error
+	subscribed        []string
+	unsubscribed      []string
+	handlers          map[string]platformmq.Handler
+	subscribeErrors   map[string]error
 	unsubscribeErrors map[string]error
 }