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