Global Setup/Teardown

[simoncarbajal]

🐛 Bug Report

The global variable when testEnvironment == 'node' is not shared between tests and global setup/teardown scripts as shown here:
http://jestjs.io/docs/en/mongodb#docsNav
http://jestjs.io/docs/en/configuration#globalsetup-string

To Reproduce

in package.json

"scripts": {
    "test": "jest --config=./jest.config.js;"
}

// in jest.config.js
module.exports = {
  testEnvironment: 'node',
  globalSetup: './tests/globalSetup.js'
};

// in globalSetup.js
global.myVar1 = '1';
module.exports = async () => {
  global.myVar2 = '2';
};

// in test.spec.js
console.log(global.myVar1);    // undefined
console.log(global.myVar2);    // undefined

Expected behavior

// in test.spec.js
console.log(global.myVar1);    // '1'
console.log(global.myVar2);    // '2'

Desired

Run only once a global unique afterAll or beforeAll for all the tests.

npx envinfo --preset jest

System:
    OS: macOS High Sierra 10.13.5
    CPU: x64 Intel(R) Core(TM) i7-4770HQ CPU @ 2.20GHz
  Binaries:
    Node: 10.5.0 - /usr/local/bin/node
    npm: 6.1.0 - /usr/local/bin/npm
  npmPackages:
    jest: ^23.2.0 => 23.2.0

[SimenB]

Duplicate of #6007.

This is not really possible to fix and still keep tests isolated. Ideas welcome on how to do it!

[github-actions]

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