testing-tdd

Test-Driven Development with Vitest and xUnit involves following the Red-Green-Refactor cycle: writing a failing test first, implementing the minimum code to pass it, and then refactoring. This enforces the AAA pattern for maintainable test suites.

The AAA pattern in software testing structures tests into Arrange, Act, and Assert phases. Adhering to this pattern promotes test isolation and maintainability across frontend and backend frameworks like Vitest and MsTest.

This TDD methodology supports frontend testing with Vitest and backend testing with xUnit or MsTest frameworks. It provides framework-agnostic guidance to enforce test coverage, naming conventions, and isolation across your stack.

To start writing tests before implementation, follow the Red-Green-Refactor workflow: draft an isolated failing test using the AAA pattern, write the minimum code required to pass, and then refactor for clarity and code quality.

Enforcing strict Test-Driven Development requires writing tests for every new feature before implementation, which can slow down initial development velocity. However, it prevents bugs and promotes maintainable test suites over time.