[#1] add testfile for testing automation

src/app.controller.spec.ts

@@ -0,0 +1,18 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { AppController } from './app.controller';
+
+describe('AppController', () => {
+  let controller: AppController;
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      controllers: [AppController],
+    }).compile();
+
+    controller = module.get<AppController>(AppController);
+  });
+
+  it('should be defined', () => {
+    expect(controller).toBeDefined();
+  });
+});

src/app.controller.ts

@@ -0,0 +1,9 @@
+import { Controller, Get } from '@nestjs/common';
+
+@Controller()
+export class AppController {
+  @Get()
+  sayHi() {
+    return 'hi';
+  }
+}

src/app.module.ts

@@ -2,6 +2,8 @@ import { Module } from '@nestjs/common';
 import { ConfigModule, ConfigService } from '@nestjs/config';
 import { validationSchema } from './config/validationSchema';
 import { TypeOrmModule } from '@nestjs/typeorm';
+import { AppController } from './app.controller';
+import { AppService } from './app.service';
 
 @Module({
   imports: [
@@ -26,5 +28,7 @@ import { TypeOrmModule } from '@nestjs/typeorm';
       }),
     }),
   ],
+  controllers: [AppController],
+  providers: [AppService],
 })
 export class AppModule {}

src/app.service.spec.ts

@@ -0,0 +1,18 @@
+import { Test, TestingModule } from '@nestjs/testing';
+import { AppService } from './app.service';
+
+describe('AppService', () => {
+  let service: AppService;
+
+  beforeEach(async () => {
+    const module: TestingModule = await Test.createTestingModule({
+      providers: [AppService],
+    }).compile();
+
+    service = module.get<AppService>(AppService);
+  });
+
+  it('should be defined', () => {
+    expect(service).toBeDefined();
+  });
+});

src/app.service.ts

@@ -0,0 +1,4 @@
+import { Injectable } from '@nestjs/common';
+
+@Injectable()
+export class AppService {}