How to use ESM tests with jest?

Here are the steps I took to run Jest with a test using ESM. The source files under test were also written using ESM.

1. Set my node version to 14.16.0

2. Install Jest:

   npm i jest -D
   

3. Add "type": "module" to package.json

4. Update test script in package.json:

   "scripts": {
     "test": "node --experimental-vm-modules ./node_modules/.bin/jest"
   }
   

5. Create a jest.config.js file with the following content:

   export default { transform: {} }
   

6. Have at least one test that could be found using the default testMatch (mine was inside __tests__ dir)

7. Run tests:

   npm test
   

There is a more complete example in the magic-comments-loader repository on GitHub.