在我使用 Supertest 和 MSW 的测试中,我注意到,尽管它们仍然成功通过,但 MSW 已经开始对 Supertest 发出的请求显示警告。例如(见文末重现的文件):
$ npm t
> msw-example@1.0.0 test
> jest
PASS ./app.test.js
password API
✓ exposes a number of words (76 ms)
console.warn
[MSW] Warning: captured a request without a matching request handler:
• GET http://127.0.0.1:55984/api
If you still wish to intercept this unhandled request, please create a request handler for it.
Read more: https://mswjs.io/docs/getting-started/mocks
at onUnhandledRequest (node_modules/msw/node/lib/index.js:7599:21)
at node_modules/msw/node/lib/index.js:7630:13
at fulfilled (node_modules/msw/node/lib/index.js:50:58)
Test Suites: 1 passed, 1 total
Tests: 1 passed, 1 total
Snapshots: 0 total
Time: 1.005 s
Ran all test suites.
该请求GET http://127.0.0.1:55984/api
是Supertest向应用程序发出的请求,这是测试的重点,而不是 MSW 需要处理的请求。当我第一次编写测试时,也没有显示这些警告。
链接页面显示了如何创建处理程序,但我不希望 MSW 处理这些请求。为什么会发生这种情况,我该如何阻止它显示"/api"
呼叫警告?
package.json
:
{
"name": "msw-example",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "jest"
},
"keywords": [],
"author": "",
"license": "ISC",
"dependencies": {
"axios": "^0.21.1",
"express": "^4.17.1"
},
"devDependencies": {
"jest": "^27.0.4",
"msw": "^0.29.0",
"supertest": "^6.1.3"
}
}
app.js
:
const axios = require("axios");
const express = require("express");
const app = express();
app.get("/api", (_, res) => {
axios.get("https://api.pwnedpasswords.com/range/ABC12")
.then(() => res.json({ words: 3 }))
.catch((err) => res.sendStatus(500));
});
module.exports = app;
app.test.js
:
const { rest } = require("msw");
const { setupServer } = require("msw/node");
const request = require("supertest");
const app = require("./app");
const server = setupServer(
rest.get("https://api.pwnedpasswords.com/range/:range", (req, res, ctx) => {
return res(ctx.status(200), ctx.text(""));
}),
);
describe("password API", () => {
beforeAll(() => server.listen());
beforeEach(() => server.resetHandlers());
afterAll(() => server.close());
it("exposes a number of words", () => {
return request(app).get("/api").expect(200).then((res) => {
expect(res.body.words).toBe(3);
});
});
});