The Practical Guide to JavaScript Unit Testing

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Learn how to use Vitesse and Jest to create automated tests (unit and integration tests) for your JavaScript applications.
What you’ll learn
The Practical Guide to JavaScript Unit Testing

Unit and integration tests should be written and structured.
Utilize well-known JavaScript test runners and libraries.
Write excellent tests and concentrate on testing the most important business logic.
Requirements
A basic understanding of JavaScript is necessary.
It is not required to have any previous understanding of testing.
Description
In current (web) development, automated testing is a crucial notion.

Many developers, though, find the idea scary at first and don’t want to test their projects or add tests to them.

This course will show you how to use JavaScript to automate unit and integration testing from the bottom up.

You’ll learn about the tools and configuration needed to develop automated tests, and you’ll get to work on several sample projects as part of the class. You won’t get trapped in theory since this is a hands-on, practical course; instead, you’ll be able to learn all the major principles via real-life situations.

Vitesse will be the primary testing library and tool in this course. It’s a contemporary JavaScript test runner and assertion framework that’s compatible with Jest. As a result, anything you learn in this course will be useful whether you’re working with Vitesse or Jest. And the main ideas will apply regardless of any testing environment you choose!

This course does not cover certain sorts of JavaScript projects, nor does it cover any particular library or framework.

Instead, you’ll learn how to test your (vanilla) JavaScript code automatically, regardless of whether it’s for a NodeJS or frontend project. The basics you’ll learn in this course will help you with both backend (NodeJS) and frontend (vanilla JS, React, Vue, Angular) projects in the future.

This course will provide you with a rock-solid basis on which to construct your JavaScript applications, allowing you to start implementing tests right away.

This course will show you how to:
What is “testing” or “automated testing” exactly? (and why you need it).
What exactly is “unit testing”?
Unit tests and how to write them
How to express various expectations (assertions)
Which test-writing patterns should you follow?
What is the best way to test asynchronous and synchronous code?
How to cope with the adverse effects of spies and mocks
What are some examples of how to utilize all of these principles in real-world projects?
Who this course is for:
Developers of JavaScript who wish to add tests to their projects
Developers who have always been intimidated by automated testing.