QA and testing courses — unit testing with Jest/Vitest, end-to-end with Cypress and Playwright, TDD/BDD, performance testing with JMeter, REST API testing and software-testing fundamentals.
QA & Testing
4 courses Added May 2026
Advanced Vitest Patterns
Do you know that feeling when an instrument "clicks"? When you stop perceiving it as just a means to an end and start using it as...1 hour 43 minutes 59 seconds
PHPUnit: Testing with a Bite
It's Friday night... it's stormy... the office is empty... and you're deploying fresh code to production. Suddenly, an alarm! What!? The fences are down!? The d28 minutes 8 seconds
Mocking Techniques in Vitest
Let's admit it, mocking can be really confusing. First, you need to understand what exactly to mock. Then, find the right way to do it so it doesn't worsen...1 hour 30 minutes 36 seconds
Test with Jest
Jest is an industry leading test suite for JavaScript used by big and small projects around the globe. Get up and running with Jest in this course! In this cour52 minutes 39 seconds