使用typescript，Mocha，Chai和SuperTest对async / await节点api函数使用nodeJs运行或调试集成测试

Question

I am trying to run(using command npm run test and to debug i have been used IDE Webstorm ) the integration test developed using node.js written in typescript, mocha, chai and supertest for node application developed using typescript.

In before() hook function, we are making a call to the application which actually initiating service and this call are for asynchronous(used async-await) functions(from the app.ts/app.js file of node application).

But always I am getting an error like ' Error: You are not authorized to access the key in Google KMS ' (ie in service) and plus it said ' Error: Timeout of 60000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves. ' , but if I ran service/application individually it is working fine. so that means while running service the async/await code for API/function call is same.

So my point is here does this happen due to timeout the async/await request while initiating service from before() hook function.

Below are code sample in test.int-test.ts file,

    import {expect} from "chai";
    const app = require('../app');
    const supertest = require('supertest');

    describe("Test model", function () {

    this.timeout(60000);

    before(async () => {
      api = supertest(await app); 
      // app is here a entry point for my service/application which runs actually service/applicaiton. 
      // This file has async-await function which makes call to third party application
      console.log('inside before: ', JSON.stringify(api));
    });

    describe('get', function () {
      it('should respond with 200 Success', async () => {
        // call to async function
       });
    });
});

and under the section script in package.json

    "scripts": {
"test": "nyc --reporter=html --reporter=text --reporter=cobertura node_modules/mocha/bin/_mocha --reporter mocha-multi-reporters --reporter-options configFile=mocha-multi-reporters.config build/test/test.int-test.js"
}

Can anybody face such a situation? that how to initiate async/await service from integration test file.

Answer 1

Finally I have found the solution to run and debug integration test, we need to do few changes here.

1. Most important to timeout issue we must set timeout as 0 ie **this.timeout(0)**
2. While debugging should point to .js file in mocha setup in WebStorm, do not use .ts file, as mocha hooks up .js files for running as well as debugging a test, however we can also use .ts file to run test. ( https://journal.artfuldev.com/write-tests-for-typescript-projects-with-mocha-and-chai-in-typescript-86e053bdb2b6 ).
3. To run, use command 'npm run name-of-test-script', mocha will hooks up .js file only.