feature: compatibility with various IDEs

src/app.controller.spec.ts

@@ -1,5 +1,4 @@
 import { Test, TestingModule } from '@nestjs/testing';
-import { INestApplication } from '@nestjs/common';
 import { AppController } from './app.controller';
 import { AppService } from './app.service';
 
@@ -13,10 +12,10 @@ describe('AppController', () => {
     }).compile();
   });
 
-  describe('root', () => {
+  describe('getHello', () => {
     it('should return "Hello World!"', () => {
       const appController = app.get<AppController>(AppController);
-      expect(appController.root()).toBe('Hello World!');
+      expect(appController.getHello()).toBe('Hello World!');
     });
   });
 });