hai-app-tests

To enforce TDD workflows for Vitest unit tests and Playwright E2E tests, outline the test plan first using structured templates, then implement code to make tests pass. This Red-Green-Refactor cycle prevents regressions and reduces debugging time.

The best way to validate API contracts and service logic before implementation is by applying test-first discipline using schema validation and unit tests. Defining tests upfront ensures coverage and reliability throughout the development cycle.

Yes, you can use this approach for testing UI components across web apps. It provides reusable testing patterns and standards specifically designed for validating user interfaces before implementation to improve reliability.

No additional dependencies are required to start. The guide focuses on applying test-first discipline using Vitest for unit tests and Playwright for end-to-end tests, supplying templates and standards to structure your workflows.

You should avoid test-first discipline when rapid prototyping without strict coverage requirements. This approach enforces structured Red-Green-Refactor workflows and reusable patterns, which may introduce unnecessary overhead for exploratory coding.