A Course You'll Actually Finish
Mastering JavaScript Unit Testing
A comprehensive, beginner-friendly guide covering everything from the basics to advanced techniques
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About the Course
Mastering JavaScript Unit Testing is designed to equip you with the skills to write maintainable, robust, and valuable unit tests for your JavaScript applications. Whether you're new to unit testing or looking to refine your skills, this course will guide you through the fundamentals and best practices of unit testing, helping you ensure your code is reliable and easy to maintain.
You’ll explore core techniques like positive, negative, and boundary testing to ensure comprehensive test coverage. You’ll also learn how to use mocks to isolate code, create parameterized tests for versatile scenarios, and evaluate code coverage to make sure nothing is missed. Beyond testing, this course will show you how to improve overall code quality using static analysis tools like ESLint and Prettier, prevent type errors with TypeScript, and automate quality checks with Husky.
By the end of this course, you’ll have the confidence to create high-quality, well-tested JavaScript code that stands up in production.
Highly Practical
What You'll Learn
- Explore the fundamentals of unit testing and its benefits.
- Master core unit testing techniques and best practices.
- Craft maintainable, robust, and trustworthy tests that deliver value.
- Learn to execute and navigate tests effectively in VSCode.
- Perform positive, negative, and boundary testing for comprehensive coverage.
- Evaluate code coverage to ensure comprehensive testing.
- Create parameterized tests for versatile testing scenarios.
- Isolate code with mocks and learn when to use them.
- Spy on functions to gain insights into their behavior.
- Improve code quality using static analysis tools.
- Utilize Prettier to format your code consistently.
- Implement ESLint to catch code quality issues early.
- Prevent type errors in your code using TypeScript.
- Automate code quality checks using Husky.
A Perfectly Structured Course
Course Content
4 Hours . 6 Sections . 70 Lessons
Getting Started(7m)
Introduction to Unit Testing(54m)
Core Unit Testing Techniques(1h)
Breaking Dependencies with Mocks(54m)
Improving Code Quality with Static Analysis Tools(35m)
Conclusion(25s)
Target Student
Who Is This For?
- Developers looking to enhance their JavaScript skills through effective unit testing.
- Software engineers aiming to improve code quality, reliability, and maintainability.
- JavaScript enthusiasts wanting to dive deeper into testing frameworks and best practices.
- Anyone looking to boost their career prospects by mastering JavaScript unit testing.
A Complete Beginner-Friendly Course
No Prior Knowledge Needed
You don't need prior knowledge of unit testing to take this course. However, you should be familiar with modern JavaScript features such as arrow functions, modules, promises, etc.
Need More Details?
Frequently-Asked Questions
Does this course cover testing React apps?
No, this course primarily focuses on foundational unit testing principles and best practices that are often overlooked and miss from other courses. I believe that mastering these fundamentals is essential before diving into testing React apps. I'm actively developing a separate course dedicated to testing React apps, which will cover advanced techniques like testing components, forms, authentication, state management, and routing. Completing 'Mastering JavaScript Unit Testing' will set you up for success in my upcoming React testing course.
Will I get 'Testing React Apps' for free if I enroll in this course?
Unfortunately not! That's an entirely separate course that you need to purchase if you're interested. You may also consider buying a subscription to get access to all the courses in the library.
Does this course use Jest?
In this course, we'll use Vitest, which is a better alternative to Jest as it's built from the ground up for modern JavaScript apps. All the concepts you'll learn in this course will directly transfer to Jest.
How is this course different from YouTube tutorials?
Crystal clear and straight to the point, each lesson is concise and packed with 20 years of software engineering experience. No rambling—just a perfectly structured path to help you really understand and build your skills.
What’s the difference between buying a single course and getting Lifetime Access?
Buying a single course gives you lifetime access to just that course. Lifetime Access unlocks everything I’ve ever created—and everything I’ll release in the future—with a single payment.
How long will I have access to the course?
If you purchase this course, you’ll have lifetime access, allowing you to revisit lessons and resources anytime.
Is there a money-back guarantee?
Yes, there’s a 30-day money-back guarantee. If you find the course isn’t a good fit, you can request a refund within the first 30 days.
This course is part of
React Testing Mastery: From Basics to Advanced Techniques
2 courses
30-day money-back guarantee
- 11 hours on-demand video
- 170 lessons
- 2 courses
- Lifetime access
- Downloadable content
- English captions
- Certificate of completion