Practical lesson stt-pz-1

In this lesson is introduction to auto testing in javascript. Using Jest Jest is a delightful JavaScript Testing Framework with a focus on simplicity

What need to do:

• Setting up the testing environment
• Implement unit tests for lib.js functions according to Test Development Driven (TDD) concepts
• Implement functions from libs.js

Acceptance criteria

• Understand basic concepts of Test Development (TDD) in JavaScript
• Setting up the testing environment
• Build and run them
• Code coverage must be mote than 90%

Getting started

Install npm packages

npm install

Run unit tests

npm run test

Directory Structure

├── stt-pz-1
│   ├── js
│   │   ├── lib.js
│   │   ├── lib.spec.js
│   ├── .editorconfig
│   ├── .gitignore
│   ├── jest.config.js
│   ├── package.json
│   ├── package-lock.json
│   ├── README.md 
└── 

Useful links

• Introduction to Test Driven Development in JavaScript.
• Автоматические тесты при помощи chai и mocha.
• Автоматическое тестирование с помощью Mocha JS.
• Что такое TDD и BDD на пальцах, и что должен знать о них фронтендер
• 5 Tips for Writing Great Javascript Unit Tests
• What is Test-Driven Development (TDD)?
• Unit Testing Best Practices