Jest clean up after all tests have run

Question

Is it possible in Jest to run cleanup or teardown tasks that run after all other tests have completed? Similar to how setupFiles allows one to set up tasks after before any test has run. Bonus points if this can also run regardless if the test had any errors.

Putting afterAll(() => {}) at the top level of a file (outside any describe function) appears only to run after tests from that particular file have finished.

The use case is I have many test files that will create users in a a development database, and I don't want to make each test file responsible for cleaning up and removing the user afterwards. Errors can also happen while writing tests, so if the cleanup happens regardless of errors that would be preferable.

Answer 1

There's a sibling hook to setupFiles that will too fire before every test suite but right after your test runner (by default Jasmine2) has initialised global environment.

It's called setupFilesAfterEnv. Use it like this:

{     "setupFilesAfterEnv": ["<rootDir>/setup.js"] } 

Example setup.js:

beforeAll(() => console.log('beforeAll')); afterAll(() => console.log('afterAll')); 

setup.js doesn't need to export anything. It will be executed before every test suite (every test file). Because test runner is already initialised, global functions like beforeAll and afterAll are in the scope just like in your regular test file so you can call them as you like.