2024-07-03

While writing test case, I needed to set environment variables for Jest. I don't want to setup dotenv in the spec.

Setting Environment Variables for Jest with dotenv

This setup ensures that environment variables from a .env file are loaded before running Jest tests:

1. Update package.json: Modify the test script to run jest.
2. Install dotenv: Add the dotenv package to manage environment variables.
3. Create jest.config.js: Load environment variables by requiring dotenv in the Jest configuration file.
4. Ensure .env file: Place your environment variables in a .env file in the project root.

• Update package.json:

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  1"scripts": {
  2  "test": "jest"
  3}

• Install dotenv:

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  1npm install dotenv

7. Create jest.config.js:

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   1require('dotenv').config();
   2
   3module.exports = {
   4  // Jest config options
   5};

8. Ensure .env file is in the project root.