Introduction to Jest Testing | JavaScript Unit Tests

Web Dev Roadmap for Beginners (Free!): https://bit.ly/DaveGrayWebDevRoadmap

In this Introduction to Jest testing, you will learn how to write JavaScript Unit Tests and why you should write them. Jest is a popular testing framework that helps you verify your code works like you think it should.

💖 Support me on Patreon ➜   / davegray  

⭐ Become a full-stack web dev with Zero To Mastery Courses:
- Complete Next.js Developer: https://bit.ly/CompNextJSDev
- Advanced React: https://bit.ly/AdvReactDev
- Junior to Senior Dev Roadmap: https://bit.ly/WebDevRoadmap-JrtoSr

🚩 Subscribe ➜ https://bit.ly/3nGHmNn

📬 Course Updates ➜ https://courses.davegray.codes/

❓ Questions - Please post them to my Discord ➜   / discord  

☕ Buy Me A Coffee ➜ https://www.buymeacoffee.com/davegray

👇 Follow Me On Social Media:
GitHub: https://github.com/gitdagray
Twitter:   / yesdavidgray  
LinkedIn:   / davidagray  

🔗 Source Code: https://github.com/gitdagray/jest-intro
📺 "Testing Your Code" playlist:    • Testing Your Code  

Introduction to Jest Testing | JavaScript Unit Tests

(00:00) Intro
(00:10) Welcome
(00:32) Lesson Goal
(00:51) Why Write Tests?
(01:24) Quick Note
(01:42) Install Node for npm
(02:04) Checking your Node install
(02:39) A Simple Function
(03:15) Install Jest
(04:24) Your First Unit Test
(05:42) How to Run Tests
(06:41) What is a Unit Test?
(07:14) Testing a 2nd Function
(12:07) Testing a 3rd Function
(16:09) Drilling Down to a Single Responsibility
(22:25) Generating a Coverage Report
(24:40) Wrap up

📚 Tutorial References:
🔗 Jest Official Website: https://jestjs.io/
🔗 Node.js & NPM: https://nodejs.org

Was this tutorial about writing JavaScript Unit Testing with Jest helpful? If so, please share. Let me know your thoughts in the comments.

#jest #testing #javascript