tdd

Test-driven development is a workflow where you write a failing test first, implement minimal code to pass it, then refactor for clarity. This red-green-refactor cycle validates behavior and reduces regressions in modern codebases.

Start writing integration tests by targeting public interfaces to validate behavior. Write a failing test that defines the feature, implement just enough code to make it pass, then refactor to improve software quality and design.

Yes, you can use test-driven development for bug fixes in existing codebases. Write a failing test that reproduces the bug, implement the minimal code fix to turn it green, and refactor safely knowing the test prevents regressions.

Test-driven development helps detect design flaws early by forcing you to test public interfaces first. If a feature is difficult to test, it signals tight coupling, prompting refactoring before the codebase grows.

The best way to maintain fast feedback loops is to implement just enough code to pass each failing test, then refactor immediately. This disciplined progression keeps integration tests focused and software quality high.

You should avoid test-driven development when exploring rapid feature ideation without clear interfaces, as writing tests first requires defined public behavior to establish meaningful red-green-refactor cycles.