tdd-workflow

Enforcing a test-first workflow requires writing tests before implementing code to define expected behavior. You outline user journeys, generate tests first, implement code to satisfy those tests, and refactor while maintaining 80%+ test coverage across unit, integration, and E2E tests.

The best way to prevent code regressions is applying Test-Driven Development across the software lifecycle. By mandating 80%+ test coverage and a structured workflow from test generation to implementation, you define expected behavior upfront and catch defects before shipping.

Test-driven development works effectively for bug fixes and refactoring. It enforces writing tests that capture expected behavior before altering code, ensuring that unit, integration, and E2E tests validate the changes and maintain an 80%+ coverage discipline to prevent regressions.

Achieving 80% test coverage involves a structured workflow of writing tests first, observing failures, and implementing code until all tests pass. You must cover unit, integration, and E2E testing scenarios throughout feature development, bug fixes, and refactoring.

A limitation of enforcing Test-Driven Development is the strict requirement to write tests before code and achieve 80%+ coverage. This test automation approach demands significant upfront time defining user journeys and tests, which may slow down rapid prototyping or exploratory coding phases.