refactor(test-server): improve test service code

test/server/controller/UserController.ts

@@ -0,0 +1,15 @@
+import UserService from '../service/UserService';
+
+class UserController {
+  private service: UserService = new UserService();
+
+  login = async (ctx) => {
+    ctx.body = await this.service.login();
+  };
+
+  getUserInfoById = async (ctx) => {
+    ctx.body = await this.service.getUserInfoById();
+  };
+}
+
+export default new UserController();