我正在使用带有 typeorm 的 typescript ,我有一个像这样的存储库:
import { EntityRepository, getRepository, createQueryBuilder } from 'typeorm';
@EntityRepository()
export default class Repo {
async getSomething(): Promise<Result> {
const schemaQuery = getRepository(SomeModel)
.createQueryBuilder('sm')
.select(...)
.where(...);
.....
我的测试文件是这样的
import * as typeorm from 'typeorm';
import Repo from '../../../../src/repositories/Repo';
describe(
'test',
() => {
let repo: Repo;
beforeEach(() => {
repo = new Repo();
});
test('getSomething works', async () => {
jest.spyOn(typeorm, 'getRepository').mockImplementation(() => ({ // typescript wants me to implement all properties of getRepository which i dont want
createQueryBuilder: jest.fn(),
}));
...
});
},
);
我如何直接从仍符合 typescript 类型检查的 typeorm 模拟 getRepository?
最佳答案
我刚遇到这个问题,实际上我使用了您的代码作为我解决方案的基础。请试试这个:
jest.spyOn(typeorm, "getRepository").mockImplementation(() => {
const original = jest.requireActual("typeorm");
// You need all functions used in your Query builder
return {
...original,
createQueryBuilder: jest.fn().mockImplementation(() => ({
subQuery: jest.fn().mockReturnThis() as unknown,
from: jest.fn().mockReturnThis() as unknown,
where: jest.fn().mockReturnThis() as unknown,
select: jest.fn().mockReturnThis() as unknown,
getQuery: jest.fn().mockReturnThis() as unknown,
setParameter: jest.fn().mockReturnThis() as unknown,
getMany: jest
.fn()
.mockResolvedValue(expected) as unknown,
})),
};
});
关于javascript - 如何使用 Jest 对 typeorm getRepository 进行单元测试?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/67591877/