如何统一npm的请求.用玩笑发帖

Question

我正在使用npm请求，如何模拟request.post我需要测试错误场景，状态码不是200场景和成功流程。

1 request.post(reqObject, (error: Error, response: any, body: any) => {
2     if (error) { return reject(error); }
3     if (response.statusCode !== 200) {
4         return reject('Invalid status code <' + response.statusCode + '>');
5     }
6     return resolve(JSON.parse(body));
7 });

Answer 1

request对象可以被jest.mock('request')模拟。

像这样:

const request = require("request");
jest.mock('request', () => {
return {
post: () => { 
console.log("mocked"); 
// or something like jest.fn()
}
};
});
test('test description', () => {
// request.post within fetchData has been mocked
// await fetchData(); 
});