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Write Confident Code - Master Testing Techniques for High-Quality Software

Testing isn't just a phase - it's a mindset. Whether you're a junior developer or a seasoned engineer, understanding how to write reliable tests is essential for building robust and maintainable software. This book provides a practical guide to unit testing, integration testing, and test-driven development (TDD) using modern frameworks like JUnit, Mocha, Jest, and more.

You'll learn how to incorporate testing into your workflow, structure your code for testability, and adopt TDD to catch bugs early - resulting in faster development cycles and fewer production issues.

✅ Fundamentals of software testing and quality assurance
✅ Writing effective unit tests with JUnit (Java) and Mocha (JavaScript)
✅ How to structure and mock dependencies for testing
✅ Integration testing for APIs, databases, and third-party services
✅ End-to-end testing vs. unit and integration tests
✅ Test-Driven Development (TDD): Red-Green-Refactor cycle
✅ Best practices for writing maintainable, reusable test code
✅ Automating tests in CI/CD pipelines
✅ Testing legacy code and overcoming challenges
✅ Coverage tools, assertions, and debugging techniques

With hands-on examples and actionable tips, this book helps developers test with confidence - ensuring every line of code does exactly what it should.