Source

Code extracted from Jest documentation: https://jestjs.io/docs/getting-started

Description

Simple unit test using Jest: "sum.test.js".

Test target

Function "sum" coded in "sum.js".

Setup executed

npm init

It was informed:

test command: jest

npm install --save-dev jest

How to run the test

npm test

Expected:

PASS ./sum.test.js

√ adds 1 + 2 to equal 3 (5 ms)

First Git setup (if you never used git in your machine)

git config --global user.name "username"

git config --global user.email email