TDD with Spring Boot helps you write clear code that is safe to change. You start with a test, then add code to make it pass. This keeps each feature small and focused.
Why TDD Helps You
You write tests in short loops. Each loop shapes your design and shows you what to build next. These loops also catch bugs early and reduce debug time.
TDD in Spring Boot
Spring Boot works well with fast tests. You can test each layer on its own. You also learn when to mock parts and when to use real components.
Unit Tests
You test single classes with small inputs and clear checks. These tests guide your class design and help you spot extra code.
Integration Tests
You test how parts work together. This gives you trust that your endpoints, services, and data flow behave as expected.
What You Build
You create features step by step. Each step starts with a failing test. Each fix adds working code with a clear purpose.
Safe Refactors
Your test suite gives you cover to change code without fear. You can improve names, split logic, or move parts as the design evolves.
