generator-nest-js-boilerplate/generators/prisma/templates/postgresql/jwt/src/modules/v1/auth/auth.service.spec.ts

This generator will help you to build your own Nest.js Mongodb API using TypeScript 4

import { Test, TestingModule } from '@nestjs/testing';
import AuthService from './auth.service';

describe('AuthService', () => {
  let service: AuthService;

  beforeEach(async () => {
    const module: TestingModule = await Test.createTestingModule({
      providers: [
        {
          provide: AuthService,
          useValue: {},
        },
      ],
    }).compile();

    service = module.get<AuthService>(AuthService);
  });

  it('should be defined', () => {
    expect(service).toBeDefined();
  });
});