🐛 Not generating outputFile provided in jest CLI

🐛 Bug Report

Unable to genrate outputFile for jest.

Following is my configuration:

jest.config.js file:

module.exports = {
  collectCoverage: true,
  collectCoverageFrom: ['./src/**/*.js'],
  coverageReporters: ['json-summary', 'text', 'lcov'],
  globalSetup: './__tests__/global/test-setup-globals.js',
  globalTeardown: './__tests__/global/test-teardown-globals.js',
  roots: ['<rootDir>/__tests__'],
  testMatch: ['**/?(*.)+(spec|test).js'],
  testEnvironment: 'node',
  verbose: true,
}; 

package.json

{
  "name": "my-project",
  "version": "1.0.0",
  "main": "src/index.js",
  "scripts": {
    "start": "node src/index.js",
    "test": "jest --detectOpenHandles --json --outputFile=output.json"
  },
  "license": "ISC",
  "dependencies": {
  },
  "devDependencies": {
    "jest": "^26.6.3",
    "nock": "^13.0.5",
    "supertest": "^6.0.1"
  }
}

Running test with following command

npm test

To Reproduce

Steps to reproduce the behavior is make above mentioned configuration.

Also, tried many more combination of configuration. Anyone here facing same issue?

Expected behavior

Should generate output.json file

envinfo

  System:
    OS: Linux 5.4 Ubuntu 20.04.1 LTS (Focal Fossa)
    CPU: (12) x64 Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz
  Binaries:
    Node: 12.19.1 - /usr/bin/node
    npm: 6.14.9 - /usr/bin/npm
  npmPackages:
    jest: ^26.6.3 => 26.6.3 

[connectdotz]

One of our issues (jest-community/vscode-jest#730) seems to bump into the same problem - the json file was not generated. After poking around for a bit, it seems related to the globalTeardown that forced the process to exit:

module.exports = function testTeardown() {
  process.exit();
};

If I disable the globalTeardown config or comment out the process.exit(), JSON file is generated as expected, but of course, the jest run did not close as that is what the process.exit() aim to resolve.

This might shed some light… maybe JSON is generated after the teardown? You can use the sample repo there to debug this issue.

[github-actions[bot]]

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