1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19import { Test, TestingModule } from '@nestjs/testing'; import { CommentsService } from './comments.service'; describe('CommentsService', () => { let service: CommentsService; beforeEach(async () => { const module: TestingModule = await Test.createTestingModule({ providers: [CommentsService], }).compile(); service = module.get<CommentsService>(CommentsService); }); it('should be defined', () => { expect(service).toBeDefined(); }); });