Question

How do you create a testing module in Nest?

const moduleRef = await Test.createTestingModule({
  controllers: [UsersController],
  providers: [UsersService],
}).compile();

Accepted Answer

With Test.createTestingModule() from @nestjs/testing, then compile() and get instances with moduleRef.get()

Answer

Start the whole app with node main.js before each test

Answer

Nest code can't be unit tested

How do you create a testing module in Nest?

Explanation