Javascript 如何在TypeScript中使用mocha模拟axios依赖关系？

这是我的示例src/main.ts文件

import axios from 'axios';
export async function main() {
     const URL = 'test url';
     const secretKey = 'Test key'
     const response = await axios.get(URL, {
        headers: { 'Content-Type': 'application/json', 'KEY': secretKey },
    });

---

我想使用mocha在spec/test.ts文件中编写测试用例。有人能告诉我如何为axios依赖项创建mock和stub吗。

对于typestript中的mock/stub axios，我建议使用expect函数

下面是一个如何做到这一点的示例

request.ts

import axios from 'axios';

const apiConfig = {
    returnRejectedPromiseOnError: true,
    timeout: 30000,
    headers: {
        common: {
            'Content-Type': 'application/json',
            'Accept': 'application/json',
        },
    },
};

const request = axios.create(apiConfig);
export default request;

梅因酒店

import request from './request';

export const URL = 'https://httpbin.org/get';
export const secretKey = 'secret_key';

export async function main() {

    const response = await request.get(URL, {
        headers: {
            KEY: secretKey,
        },
    });

    // response logic

    return response;
}

main.spec.ts

import MockAdapter from 'axios-mock-adapter';
import { expect } from 'chai';

import request from './request';
import { main, URL, secretKey } from './main';


describe('Request test', () => {
    let stub: MockAdapter;
    const receivedData = { data: 'data' };

    before(() => {
        stub = new MockAdapter(request);
        stub.onGet(URL, {
            headers: {
                KEY: secretKey,
            },
        }).replyOnce(200, receivedData);
        // replyOnce if you assume that your code sends a single request
    });

    it('test', async () => {
        const response = await main();

        expect(response.status).to.be.equal(200);
        expect(response.data).to.be.deep.equal(receivedData);
    });

    after(() => {
        stub.restore();
    });
});

---

有帮助吗？没有，我想改用依赖注入和mocha。你需要一个类似的模拟/存根库。如果你不想使用任何额外的软件包。重构代码，如

function main（httpClient）{}

而不是使用

import

，然后您可以创建模拟的httpClient并将其传递给

main

函数。