Hi I'm trying to test my service but got stuck
import { HttpException, Injectable } from '@nestjs/common';
import { InjectRepository } from '@nestjs/typeorm';
import { getManager, Repository } from 'typeorm';
import { PointsEntity } from './entities/point_store.entity';
@Injectable()
export class PointStoreService {
constructor(
@InjectRepository(PointsEntity)
private readonly pointsRepository: Repository<PointsEntity>,
) {}
async searchPoints(startDate: Date, endDate: Date, userId: string) {
try {
return await getManager().query(`
SELECT * FROM points WHERE expire_at
BETWEEN '${startDate.toISOString()}' AND '${endDate.toISOString()}'
AND "userId"='${userId}'
`);
} catch (err) {
throw new HttpException(err.message, err.state ? err.state : 500);
}
}
}
This is my Service code. As you know there is only one method.
import { Test, TestingModule } from '@nestjs/testing';
import { getRepositoryToken } from '@nestjs/typeorm';
import * as typeorm from 'typeorm';
import { PointsEntity } from './entities/point_store.entity';
import { PointStoreService } from './point_store.service';
const mockPointsRepository = {
save: jest.fn(),
};
describe('PointStoreService', () => {
let service: PointStoreService;
let repository: typeorm.Repository<PointsEntity>;
beforeEach(async () => {
const module: TestingModule = await Test.createTestingModule({
providers: [
PointStoreService,
{
provide: getRepositoryToken(PointsEntity),
useValue: mockPointsRepository,
},
],
}).compile();
jest.resetModules(); // Most important - it clears the cache
service = module.get<PointStoreService>(PointStoreService);
repository = module.get(getRepositoryToken(PointsEntity));
});
it('should be defined', () => {
expect(service).toBeDefined();
});
describe('searchPoints', () => {
it('should searchPoints', async () => {
// can not mock getManager!!!
jest.spyOn(getManager, 'query');
});
});
});
Now I code this test case. 'should be defined' works fine. But after I try to test 'should searchPoints', I have no idea to mock it.
Is there a way to mock getManager().query()?