nestjsx-automapper profiles not found in nestjs test modules - testing

Question

Im trying to make unit testing for some features in my NestJS API.
I make use of nestjsx-automapper. The exception happens only while testing any service that uses mappings. I use #nestjs/testing and jest.
I have managed to replicate the error in this test:
describe('UserController', () => {
let userServiceInterface: UserServiceInterface;
beforeEach(async () => {
const app: TestingModule = await Test.createTestingModule({
imports: [AutomapperModule.withMapper('user')],
providers: [
{
provide: 'UserServiceInterface',
useClass: UserService,
},
],
}).compile();
userServiceInterface = app.get<UserServiceInterface>(
'UserServiceInterface',
);
});
describe('find', () => {
it(`should return user with name 'pipo'`, () => {
const user = userServiceInterface.find('pipo');
expect(user.username).toBe('pipo');
});
});
});
I've been looking for different ways to configure profiles, but importing them is the only way I've found.
Thanks in advance.

Answer 1

I figured out how nestjsx-automapper load profiles.
As you can't provide profiles in modules, you depend on that the application runs the profiles first, and it is handled by AutomapperModule from nestjsx-automapper.
I don't know why nest Modules load AutomapperModule and consequently the profiles, but Test Modules doesn't, I will have to work more with nest to understand it.
To tell Test Modules to load AutomapperModule (as they don't by default) on init, use:
moduleRef.get(AutomapperModule).onModuleInit();