不要在框架NestJS中传递e2e测试

Question

我使用NestJS框架。使用@ nestjs / typeorm时，我创建了一个包含用户的存储库。使用这种方法创建存储库，我的e2e测试。使用数据库时，所有数据都已成功保存。连接没有问题。这是我的文件：

app.module.ts

import { Module } from '@nestjs/common';
import { TypeOrmModule } from '@nestjs/typeorm';
import { Connection } from 'typeorm';
import { AuthModule } from './modules/auth/auth.module';

@Module({
  imports: [
    TypeOrmModule.forRoot(),
    AuthModule,
  ],
})
export class AppModule {
  constructor(private readonly connection: Connection) { }
}

auth.module.ts

import { Module } from '@nestjs/common';
import { TypeOrmModule } from '@nestjs/typeorm';
import { AuthService } from './auth.service';
import { AuthController } from './auth.controller';
import { Users } from '../../entity/Users';

@Module({
  imports: [TypeOrmModule.forFeature([Users])],
  controllers: [AuthController],
  providers: [AuthService],
})
export class AuthModule {}

auth.service.ts

...
      // my repo
      constructor(
        @InjectRepository(Users)
        private readonly usersRepository: Repository<Users>,
      ) { }
...

app.e2e-spec.ts

import { INestApplication } from '@nestjs/common';
import { Test } from '@nestjs/testing';
import * as request from 'supertest';
import { AppModule } from './../src/app.module';

describe('AppController (e2e)', () => {
  let app: INestApplication;

  beforeAll(async () => {
    const moduleFixture = await Test.createTestingModule({
      imports: [AppModule],
    }).compile();

    app = moduleFixture.createNestApplication();
    await app.init();
  });

  it('/ (GET)', () => {
    return request(app.getHttpServer())
      .get('/')
      .expect(404)
      .expect('{"statusCode":404,"error":"Not Found","message":"Cannot GET /"}'); //todo fix me
  });
});

一切都是按照文档编写的。当您运行npm run test：e2e时，控制台会出现以下错误：

> [email protected] test:e2e /home/nikita/MyFiles/Work/bcs-backend
> jest --config ./test/jest-e2e.json

[Nest] 7206   - 2/2/2019, 5:06:52 PM   [TypeOrmModule] Unable to connect to the database. Retrying (1)...
Error: getaddrinfo ENOTFOUND postgres postgres:5432
    at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:57:26)
[Nest] 7206   - 2/2/2019, 5:06:55 PM   [TypeOrmModule] Unable to connect to the database. Retrying (2)... +3234ms
Error: getaddrinfo ENOTFOUND postgres postgres:5432
    at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:57:26)
 FAIL  test/app.e2e-spec.ts (6.198s)
  AppController (e2e)
    ✕ / (GET) (6ms)

  ● AppController (e2e) › / (GET)

    Timeout - Async callback was not invoked within the 5000ms timeout specified by jest.setTimeout.

      at mapper (../node_modules/jest-jasmine2/build/queue_runner.js:41:52)

  ● AppController (e2e) › / (GET)

    TypeError: Cannot read property 'getHttpServer' of undefined

      17 |
      18 |   it('/ (GET)', () => {
    > 19 |     return request(app.getHttpServer())
         |                        ^
      20 |       .get('/')
      21 |       .expect(404)
      22 |       .expect('{"statusCode":404,"error":"Not Found","message":"Cannot GET /"}'); // todo fix me

      at Object.<anonymous> (app.e2e-spec.ts:19:24)

请帮我！

Answer 1

请务必在app的示例中使用app.close()关闭https://docs.nestjs.com/fundamentals/testing#end-to-end-testing对象。