Cannot exit process automatically using supertest

Do you want to request a feature or report a bug?

A bug.

What is the current behavior?

The process doesn’t exit after running all test suites.

Use the code below:

const request = require('supertest');

describe('GET /stars', () => {
  it('respond with json', (done) => {
    const app = require('http').createServer((req, res) => {
      res.writeHead(200, { 'Content-Type': 'application/json' });
      res.end('{ "stars": 1989 }');
    });
    request(app.listen())
      .get('/stars')
      .expect('Content-Type', /json/)
      .expect(200)
      .end((err, res) => {
        if (err) done(err);

        expect(res.body).toEqual({ stars: 1989 });

        done();
      });
  });
});

What is the expected behavior?

The process should exit automatically.

Please provide your exact Jest configuration

// package.json
{
  ...,
  "jest": {
      "bail": true
    },
  ...
}

Run npx envinfo --preset jest in your project directory and paste the results here

System:
    OS: macOS High Sierra 10.13.3
    CPU: x64 Intel(R) Core(TM) i5-6267U CPU @ 2.90GHz
  Binaries:
    Node: 8.10.0
    Yarn: Not Found
    npm: 5.7.1
  npmPackages:
    jest:
      wanted: ^22.4.2
      installed: 22.4.2

Actually, jest@^20.0.0 cannot work (I had tried that).

[quentinus95]

Same for me, when using request(app) with a valid test case but only one Jest test file, I get the Jest did not exit one second after the test run has completed.

Otherwise, when adding an empty test in another file, it completes normally.

With this test:

describe('Fake test', () => {
  it('does nothing', async () => {
  })
})

Without:

@SimenB can you re-open this issue, as this may be related to Jest?

[LvChengbin]

I found a strange behavior of Jest about this problem. If there is only one test file, such as index.spec.js, the jest will not exit if app.listen() is called. But if there are multiple test files, it will exit as expected.