fec-tdd-workflow

A test-first frontend workflow enforces writing failing tests for UI components before implementing minimal code and refactoring. This sequence ensures requirements are validated upfront, improving maintainability and providing immediate regression protection.

The minimal implementation step in test-driven development requires writing only the code necessary to pass the currently failing test. This disciplined iteration keeps frontend logic lean, auditable, and directly aligned with verified requirements.

Test-driven development applies to frontend hooks, composables, utilities, API clients, and routing guards. It supports unit, integration, and end-to-end testing scenarios across UI frameworks to validate logic before implementation.

To retain regression tests during refactoring, maintain the tests written in the initial failing test phase while optimizing the minimal implementation. This ensures new changes do not break existing verified functionality and provides quick regression validation.

Test-driven development works for unit, integration, and end-to-end testing scenarios in frontend applications. It enforces a disciplined testing sequence that validates components, hooks, and API clients across various UI frameworks.

A test-first workflow may be unnecessary for rapid prototyping or exploratory UI design where visual layout is highly volatile. It is most effective when logic, API clients, and routing guards require strict regression testing and contract validation.