This repository's aim is to bring a project initialized with unit testing tools for you to start a coding kata.

yarn or npm install

yarn test:watch or npm run test:watch

Iterate over the following steps:

• in app.spec.js, implement a unit test which describes an expected behaviour ; the test should fail
• in app.js, implement as less code as possible to make it pass
• refactor if needed

• More about Jest (Unit test framework): https://facebook.github.io/jest/docs/en/using-matchers.html