NestJS Test No Repository was found - jestjs

Question

I have a NestJS project configured with TypeORM. The e2e test is the one that is generated by the CLI:
import { Test, TestingModule } from '#nestjs/testing';
import { INestApplication } from '#nestjs/common';
import * as request from 'supertest';
import { AppModule } from './../src/app.module';
describe('AppController (e2e)', () => {
let app: INestApplication;
beforeEach(async () => {
const moduleFixture: TestingModule = await Test.createTestingModule({
imports: [AppModule],
}).compile();
app = moduleFixture.createNestApplication();
await app.init();
});
afterAll(async () => {
await app.close();
});
it('/ (GET)', () => {
return request(app.getHttpServer())
.get('/')
.expect(200)
.expect('Hello World!');
});
});
The error I get is the following:
RepositoryNotFoundError: No repository for "Question" was found. Looks like this entity is not registered in current "default" connection?
at RepositoryNotFoundError.TypeORMError [as constructor] (../src/error/TypeORMError.ts:7:9)
at new RepositoryNotFoundError (../src/error/RepositoryNotFoundError.ts:10:9)
at EntityManager.Object.<anonymous>.EntityManager.getRepository (../src/entity-manager/EntityManager.ts:975:19)
at Connection.Object.<anonymous>.Connection.getRepository (../src/connection/Connection.ts:354:29)
at InstanceWrapper.useFactory [as metatype] (../node_modules/#nestjs/typeorm/dist/typeorm.providers.js:17:30)
at TestingInjector.instantiateClass (../node_modules/#nestjs/core/injector/injector.js:304:55)
at callback (../node_modules/#nestjs/core/injector/injector.js:48:41)
at TestingInjector.resolveConstructorParams (../node_modules/#nestjs/core/injector/injector.js:124:24)
at TestingInjector.loadInstance (../node_modules/#nestjs/core/injector/injector.js:52:9)
AppModule is configured like this:
import { Module } from '#nestjs/common';
import { AppController } from './app.controller';
import { AppService } from './app.service';
import { TypeOrmModule } from '#nestjs/typeorm';
import { QuestionsModule } from './questions/questions.module';
import { Connection, getConnectionOptions } from 'typeorm';
#Module({
imports: [
// docker run --name postgres_questions_answers -e POSTGRES_PASSWORD=postgres -e POSTGRES_USER=postgres -e POSTGRES_DB=dev_questions_answers -p 5432:5432 -d postgres
TypeOrmModule.forRootAsync({
useFactory: async () =>
Object.assign(await getConnectionOptions(), {
// FIXME: This is done so Jest e2e doesnt raise Cannot create a new connection named "default", because connection with such name already exist and it now has an active connection session.
keepConnectionAlive: process.env.NODE_ENV === 'test',
}),
}),
QuestionsModule,
],
controllers: [AppController],
providers: [AppService],
})
export class AppModule {
constructor(private connection: Connection) {}
}
And the QuestionsModule like this:
import { Module } from '#nestjs/common';
import { TypeOrmModule } from '#nestjs/typeorm';
import { QuestionsService } from './questions.service';
import { QuestionsController } from './questions.controller';
import { Question } from '../entities/question.entity';
#Module({
imports: [TypeOrmModule.forFeature([Question])],
controllers: [QuestionsController],
providers: [QuestionsService],
})
export class QuestionsModule {}
Project runs fine in development and production mode, so I am wondering what am I doing wrong here?