tdd-workflow

To implement the Test-Driven Development cycle, follow the RED -> GREEN -> REFACTOR methodology: write a failing test, write the minimum code to pass it, then refactor while keeping tests green. This ensures cleaner, robust code.

The Arrange-Act-Assert test pattern structures tests into three phases: set up your objects and data, act by executing the method under test, and assert the results. This pattern clarifies test logic and isolates execution steps.

You can run unit and integration tests using Bun by executing the provided test commands specific to the framework. This enables fast execution of your test suite while validating code logic across different test categories.

Code coverage requirements vary by code type, with specific targets outlined for different categories to ensure robust testing. Following these coverage guidelines helps maintain high code quality and validates that critical paths are fully tested.

Write unit tests for isolated logic, integration tests for component interactions, and E2E tests for full system workflows. The methodology differentiates these categories to ensure each test level validates its specific scope effectively.

Yes, you can apply Test-Driven Development to an existing workflow by adopting the RED -> GREEN -> REFACTOR cycle for new features and bug fixes. This helps developers incrementally improve code quality and maintainability.