I have a mono repo of front & backend code so I have my tests split up now, /api and /app for example.

I added simple Jest unit test into the /api directory. When I run the test in the terminal, if I am also in the /api directory, the tests run fine. However, if I cd up a level to the root, the test fails because the process.env.MY_ENV is not found in the now lower down directory.

In my /api directory, I have added:

jest.config which has the setupFiles to load EnvVars:

/** @type {import('ts-jest').JestConfigWithTsJest} */
module.exports = {
  preset: 'ts-jest',
  testEnvironment: 'node',
  setupFiles: ['<rootDir>/jestEnvVars.ts', '<rootDir>/jestSetup.ts'],
};

and jestEnvVars.ts:

require('dotenv').config(); // I have tried adding { path: path.resolve(__dirname, './.env') } inside the config().

Now, on my precommit hook or VSCode, the tests fail because the env is not found.

What can I do?