test-driven-development

To practice test-driven development, write a failing test for the desired behavior before any production code, then implement the minimal logic required to make it pass. This enforces strict test-first discipline for features and bug fixes.

The red-green-refactor cycle is a TDD mechanism where you write a failing test, implement minimal code to pass it, and then refactor while maintaining test coverage. It drives correct implementations through clear phases.

Yes, you can apply test-driven development to refactoring. By enforcing failing tests before production code changes, you support refactoring with confidence and maintain test coverage across features.

The best way to ensure correct behavior is applying test-driven development to identify and implement features. It requires guiding rules and minimal implementation through the red-green-refactor cycle to prevent regressions across fintech projects.

Writing failing tests before production code ensures that tests guide implementation and prevent regressions. It enforces strict test-first discipline by requiring minimal implementation only after a test fails.