JUnit 5 and TDD for Java Testing

Learn to write reliable Java applications through unit testing, Mockito, and Test-Driven Development practices.

4.3 (390) ⏱ 42 min 📚 10 lessons 🎧 Audio version

About this course

Software quality starts with testing, but knowing how to implement modern Java tools effectively is what separates professional developers from hobbyists. This course provides a structured path to mastering the most essential testing frameworks used in the industry today. You will transform your development workflow by moving from manual debugging to automated confidence. By the end of this course, you will be able to design, write, and maintain a comprehensive suite of tests that ensure your Java applications perform exactly as intended. What you'll learn: - Understand the core principles of unit and integration testing in Java - Write effective tests using the JUnit 5 Jupiter programming model - Apply Test-Driven Development (TDD) cycles to improve software design - Master Mockito to isolate components and manage external dependencies - Create flexible test cases using parameterized testing and modern assertions - Practice writing clean, maintainable test code that serves as documentation The course begins with foundational testing terminology and the setup of a modern testing environment. You will then progress through the JUnit 5 lifecycle, explore advanced mocking techniques, and learn how to integrate these practices into a professional TDD workflow. Each concept is explained through written theory and practical code examples. This course is designed for beginner Java developers who want to build a strong foundation in software quality. No prior testing experience is required. Start your journey toward writing professional-grade Java code today.

What you'll get

  • 📜 Certificate of completion
    Add it to your LinkedIn profile
  • 💬 Personal AI tutor
    Stuck on a lesson? Ask your built-in tutor anything, any time.
  • 🎧 Audio version included
    Learn on the go — no screen needed
  • ♾️ Lifetime access
    Come back anytime, no expiry
  • 📱 Phone or computer
    Works anywhere, any device
  • 💸 30-day refund
    No questions asked
  • Short & focused
    42 min of practical content

Reviews (4)

Krasimira Ivanova BG Verified learner
★ 4 · 2026-04-22T19:06:55+00:00

It was a pretty good course overall. Some parts moved a bit fast, but the examples were generally helpful. Worth the investment.

Amelia Williams AU Verified learner
★ 4 · 2025-10-16T18:14:55+00:00

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

Ava Robinson AU
★ 4 · 2025-08-13T14:54:55+00:00

Pretty good course. The information was relevant, and I could see myself using it. A few areas felt a bit rushed though.

فاطمة بنت عمر BH Verified learner
★ 4 · 2025-02-14T07:30:55+00:00

Learned a ton and the structure made it easy to follow along. Loved the practical application examples they provided.

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Frequently asked

What do I need to take this course? +

Just a phone or computer with internet. No installs, no special hardware.

How do I pay? +

By card via Stripe, or with cryptocurrency. We do not store card details — Stripe handles them securely.

Can I get a refund? +

Yes — full refund within 30 days, no questions asked.

How long will I have access? +

Forever. Once you purchase, the course is yours to revisit anytime.

Will I get a certificate? +

Yes. On completion you'll receive a certificate you can add to your LinkedIn profile.

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