JavaScript Unit Testing and TDD with Mocha, Chai, and Sinon

Build reliable software by mastering test-driven development and unit testing for JavaScript applications using Mocha, Chai, and Sinon.

4.3 (662) ⏱ 1 oras 26 min 📚 10 aralin 🎧 Audio version

Tungkol sa kursong ito

Writing JavaScript code is only half the battle; ensuring it runs reliably under all conditions is what separates amateur developers from professionals. Unit testing allows you to catch bugs early, simplify refactoring, and deploy your applications with absolute confidence. In this course, you will transition from writing untested code to designing robust, self-validating JavaScript applications. You will gain a practical understanding of Test-Driven Development (TDD) and learn how to configure and combine industry-standard testing tools to verify both backend Node.js modules and frontend scripts. What you'll learn: - Understand the core concepts of test-driven development (TDD) and the red-green-refactor cycle. - Configure Mocha as a test runner and write clear assertions using Chai's assertion interfaces. - Isolate your code under test using Sinon to create mocks, spies, and stubs. - Test asynchronous JavaScript code effectively using modern async/await patterns and promises. - Organize and structure test suites for both Node.js applications and web environments. - Apply best practices for writing maintainable, clean, and fast-running test suites. You will start with the fundamental terminology of software testing before moving into hands-on configuration. Through clear written explanations and practical code examples, you will progress from basic assertions to mocking complex external dependencies. This course is designed for beginner to intermediate JavaScript developers who want to learn testing from scratch. No prior testing experience is required, though a basic understanding of JavaScript syntax is recommended. Start writing cleaner, more reliable JavaScript code today.

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Mga review (9)

Camila Pérez UY
★ 4 · 2026-04-02T20:24:54+00:00

So glad I took this. It provided a solid foundation and the practical applications discussed are immediately useful. Great value.

Lina Johansson SE Verified learner
★ 4 · 2026-03-24T15:37:54+00:00

This was a brilliant way to learn! The structure was logical, the pace was spot on, and the examples were super helpful. Highly recommend!

عائشة محمد الأنصاري BH Verified learner
★ 4 · 2026-01-12T10:08:54+00:00

Loved this! The examples were super helpful and really solidified the concepts. I'm already thinking about how I can apply this.

Anna Müller DE Verified learner
★ 3 · 2026-01-07T12:04:54+00:00

Pretty good overall. Some sections felt a little rushed, but the core content was solid and the examples were useful. I learned a lot.

Гаухар Жуманова KZ Verified learner
★ 3 · 2025-09-18T23:54:54+00:00

Loved the hands-on approach. The challenges really tested my understanding in a good way. Definitely worth the effort.

Puck Peters NL
★ 5 · 2025-09-04T15:19:54+00:00

Good material and presented logically. The pace was mostly spot on, and the applicability is definitely there. A few concepts needed a second watch.

Sofia Costa PT
★ 4 · 2025-08-08T08:27:54+00:00

Fantastic learning experience. The pace was perfect, and the examples really solidified the concepts. Big thumbs up!

Joke Adebisi NG
★ 5 · 2025-01-27T08:31:54+00:00

Loved the practical application examples. Exactly the kind of hands-on learning I was looking for.

James Marais ZA Verified learner
★ 3 · 2024-12-09T14:19:54+00:00

Hmm, I'm not sure this is for absolute beginners. It assumes a bit of prior knowledge that wasn't explicitly taught. Some examples were confusing.

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