Tdd
Test-Driven Development (TDD) is a software development methodology where test code is written first, followed by the actual implementation code that satisfies those tests.
Process
- Understand Requirements: Clearly comprehend the feature request or bug report.
- Write Failing Test (Red): Based on the understanding, write a unit test. Since no implementation code exists yet, this test will initially fail. (Note: If hot-reloading is configured, tests may run automatically here.)
- Implement Minimum Code (Green): Write just enough production code to make the failing test pass. Run all tests; if all pass, proceed. If not, repeat this step.
- Refactor (Clean Code): Once functionality is confirmed, refactor and improve the code (e.g., remove duplication, improve naming, optimize structure). All tests must still pass.
- Repeat: Go back to step 1 for the next feature or bug, and repeat (Rinse, lather, and repeat) the cycle.
Advantages of TDD
- Clear understanding and definition of requirements.
- Enables stable refactoring.
- Minimizes regression errors.
- Ensures high test coverage.