Test-Driven Development (TDD) for Coding Interviews

Facing a technical coding interview can be daunting, especially when employers look beyond just a working solution to evaluate how you design and test your code. Mastering Test-Driven Development (TDD) allows you to write clean, maintainable code incrementally while demonstrating structured thinking to interviewers. This course guides you through the core principles of TDD using a realistic, step-by-step programming interview challenge. You will learn to build a search system from scratch, addressing requirements one by one just as you would in a live pair-programming interview, while focusing on software design, code quality, and refactoring. What you'll learn: - Understand the core Red-Green-Refactor cycle and how to apply it to incremental feature development. - Write clean, maintainable unit tests using modern Java testing frameworks and the Arrange-Act-Assert pattern. - Apply refactoring techniques to eliminate code duplication and maintain high code quality without over-engineering. - Implement modern Java features, such as records and pattern matching, to write concise and type-safe solutions. - Navigate a live coding interview scenario by breaking down evolving, step-by-step requirements. The journey begins with foundational testing concepts and TDD terminology before diving into the core coding challenge. You will progress through written explanations and code walkthroughs that simulate a real-world technical assessment, learning how to structure your logic and handle changing requirements gracefully. This course is designed for beginner developers, computer science students, and job seekers looking to improve their software design skills and ace technical interviews. No prior experience with test-driven development is required, though a basic understanding of Java syntax is helpful. Start writing cleaner, more reliable code and approach your next technical interview with confidence.