tdd-workflow

Test-driven development is enforced by guiding teams from test design to implementation, requiring unit, integration, and end-to-end tests to be written before code. This workflow validates edge cases and error handling across feature work and refactors.

To prevent regression bugs and flaky releases, define user journeys and derive test cases to validate APIs and components. Maintaining 80%+ test coverage ensures features, fixes, and refactors are validated by tests from the outset.

Structure unit, integration, and e2e testing by outlining a user journey first, then writing corresponding tests using Jest and Playwright before implementing code. Run coverage checks to confirm thresholds are met and validate test automation workflows.

Test-driven development works effectively for API endpoints and component creation by applying test-first development across feature work. It guides teams from test design to implementation, ensuring 80%+ coverage and validating edge cases.

Defining user journeys before writing unit and integration tests prevents regressions by deriving specific test cases from the expected paths. This approach ensures APIs and components are validated against real usage scenarios and edge cases.

Test-driven development should not be skipped during bug fixes if maintaining 80%+ coverage is required. It is essential for validating error handling and edge cases, ensuring the fix does not introduce new regression bugs into the system.