typescript - NestJS - 测试套件无法运行从 'src/article/article.entity' 找不到模块 'comment/comment.entity.ts'

Question

我需要有关 nestjs 和 jest 测试的帮助。我是 NestJS 的新手，我在运行测试时遇到了找不到模块错误。
我正在尝试测试我的服务，当我运行测试时，我收到了错误消息:
src/article/article.service.spec.ts
● 测试套件无法运行

Cannot find module 'src/article/article.entity' from 'comment/comment.entity.ts'

Require stack:
  comment/comment.entity.ts
  article/article.entity.ts
  article/article.service.spec.ts

   6 |   ManyToOne,
   7 | } from 'typeorm';
>  8 | import { Article } from 'src/article/article.entity';
     | ^
   9 | 
  10 | @Entity()
  11 | export class Comment {

  at Resolver.resolveModule (../node_modules/jest-resolve/build/index.js:307:11)
  at Object.<anonymous> (comment/comment.entity.ts:8:1)

这个类似的错误正在通过不同 Controller 、服务等中的所有其他测试出现。
我正在尝试测试我的代码。
文章.service.ts

import { Injectable } from "@nestjs/common";
import { InjectRepository } from "@nestjs/typeorm";
import { Article } from "./article.entity";
import { ArticleRepository } from "./article.repository";
import { ArticleDTO } from "./dto/article.dto";
import { DeleteResult } from "typeorm";
import { ArticleRO } from "./dto/article.response";
import { UserRepository } from "src/user/user.repository";

@Injectable()
export class ArticleService {
  constructor(
    private readonly articleRepository: ArticleRepository,
    private readonly userRepository: UserRepository
  ) {}

  async getAllPosts(): Promise<ArticleRO[]> {
    return await this.articleRepository.find();
  }
}

文章.repository.ts

import { Repository, EntityRepository } from 'typeorm';
import { Article } from './article.entity';
@EntityRepository(Article)
export class ArticleRepository extends Repository<Article> {
}

article.service.specs.ts

import { Test, TestingModule } from "@nestjs/testing";
import { getRepositoryToken } from "@nestjs/typeorm";
import { Article } from "./article.entity";
import { ArticleRepository } from "./article.repository";
import { ArticleService } from "./article.service";
import { ArticleRO } from "./dto/article.response";

describe("PostService", () => {
  let service: ArticleService;
  let articleRepository: ArticleRepository;
  beforeEach(async () => {
    const module: TestingModule = await Test.createTestingModule({
      providers: [
        ArticleService,
        {
          provide: getRepositoryToken(Article),
          useClass: ArticleRepository,
        },
      ],
    }).compile();

    service = module.get<ArticleService>(ArticleService);
    articleRepository = module.get<ArticleRepository>(
      getRepositoryToken(Article)
    );
  });

  it("should be defined", () => {
    expect(service).toBeDefined();
  });
  describe("findAll", () => {
    it("should return an array of cats", async () => {
      const result: ArticleRO[] = [];
      jest.spyOn(service, "getAllPosts").mockResolvedValueOnce(result);

      expect(await service.getAllPosts()).toBe(result);
    });
  });
});

评论实体.ts

import {
  Entity,
  Column,
  PrimaryGeneratedColumn,
  CreateDateColumn,
  ManyToOne,
} from 'typeorm';
import { Article } from 'src/article/article.entity';

@Entity()
export class Comment {
  @PrimaryGeneratedColumn()
  id: number;

  @Column()
  author: string;

  @Column()
  content: string;

  @CreateDateColumn()
  createdAt: Date;

  @ManyToOne(
    () => Article,
    article => article.comments,
  )
  article: Article;
}

package.json 中有我的 Jest 设置。

"jest": {
    "moduleFileExtensions": [
      "js",
      "json",
      "ts"
    ],
    "rootDir": "src",
    "testRegex": ".spec.ts$",
    "transform": {
      "^.+\\.(t|j)s$": "ts-jest"
    },
    "coverageDirectory": "../coverage",
    "testEnvironment": "node"
  }

我试图将我的 rootDir 更改为“./src”，但这不起作用。
我用nest new blabla 生成了项目。所以我的 Jest 设置是默认的。也许我在测试中模拟我的自定义存储库时做错了。

Answer 1

不要在你的应用程序中使用像“src/article/article.entity”这样的路径，这些在编译后不可用。取而代之的是像“../../article/article.entity”这样的相对路径(这只是一个猜测的路径)......问候