tdd-workflow

Test-first development requires writing failing tests before implementation. This workflow forces you to define desired behavior upfront, reducing regressions and making refactors safer by validating the smallest working change needed to pass.

Achieve 80%+ test coverage by designing test cases with explicit attention to edge cases and error paths. You must organize deterministic unit, integration, and end-to-end tests before writing the implementation code to ensure validation discipline.

Writing tests before implementation for API endpoints and UI components involves designing the test cases first. You then implement only the code needed to make them pass, ensuring the result stays reliable across backend and frontend changes.

Yes, the test-first workflow applies to backend endpoints, frontend components, and workflow changes. It requires unit, integration, and end-to-end validation to confirm that features and refactors behave reliably before implementation.

Test-first development requires deterministic test organization to prevent fragile development. Organizing tests deterministically before implementation ensures that edge cases and error paths are validated, making refactors safer and reducing regressions.

You need to write failing tests before implementation code when adding new features, fixing bugs, or refactoring. This ensures the desired behavior is defined upfront, preventing fragile development and reducing regressions.