In this article, you'll learn 12 testing best practices that every senior developer should know. You will see real-world JavaScript examples for Kent Beck’s article "Test Desiderata" because his are in Ruby.

These properties are designed to help you write better tests. Knowing them can also help you ace your next job interview.

If you want to improve your JavaScript testing skills, and write better tests, this guide has everything you covered. The testing skills you learn in this tutorial are also applicable for TypeScript.

https://www.reactsquad.io/blog/testing-desiderata-in-javascript