How do you mock typeorm's getManager using testdouble?
I tried sinon instead of testdouble. I created a small repository, which shows how you can mock database for your blazing unit-tests :)
I tried to cover all TypeORM test cases using Jest and Mocha
Example
import * as typeorm from 'typeorm'import { createSandbox, SinonSandbox, createStubInstance } from 'sinon'import { deepEqual } from 'assert'class Mock { sandbox: SinonSandbox constructor(method: string | any, fakeData: any, args?: any) { this.sandbox = createSandbox() if (args) { this.sandbox.stub(typeorm, method).withArgs(args).returns(fakeData) } else { this.sandbox.stub(typeorm, method).returns(fakeData) } } close() { this.sandbox.restore() }}describe('mocha => typeorm => getManager', () => { let mock: Mock it('getAll method passed', async () => { const fakeManager = createStubInstance(typeorm.EntityManager) fakeManager.find.resolves([post]) mock = new Mock('getManager', fakeManager) const result = await postService.getAll() deepEqual(result, [post]) }) afterEach(() => mock.close())})