Common jest config

Supports typescript and modern es6 features out of the box in test code base, using the transformers:

• ts-jest
• babel-jest

the configuration defaults to looking for test files in the src/ folder under tests

Getting started

Install the pkg:

yarn:

yarn add @common-web/jest -D

npm:

npm install @common-web/jest --save-dev

in your repo create jest.config.js file with the following code:

const commonConfig = require('@common-web/jest');

module.exports = commonConfig;

Changing common configurations, if you need to change paths or ignore certain files:

const commonConfig = require('@common-web/jest');

// Defines the "src" of the test files
process.env.COMMON_JEST_ROOT = 'my/new/root';

// Support additional extensions in your application 
process.env.COMMON_JEST_FILE_EXTENSIONS = 'svg';

// Add additional ignore patterns
process.env.COMMON_JEST_IGNORE_PATTERNS = 'dist/**';

module.exports = commonConfig;

Adding the script to (package.json)

{
    ...

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

For more information and options for jest cli please see official docs - here

Running the jest

yarn run test

or

npm run test