import { Test, TestingModule } from '@nestjs/testing'; import { BookController } from './book.controller'; import { BookService } from './book.service'; describe('BookController', () => { let controller: BookController; beforeEach(async () => { const module: TestingModule = await Test.createTestingModule({ controllers: [BookController], providers: [BookService], }).compile(); controller = module.get(BookController); }); it('should be defined', () => { expect(controller).toBeDefined(); }); });