test-driven-development

Test-driven development is a coding practice where you write a failing test, implement minimal code to pass it, and then refactor. The RED-GREEN-REFACTOR cycle enforces this sequence to ensure software quality and robust correctness.

To start test-driven development for a new feature, first write a failing test that defines the desired behavior. Next, write the minimal amount of code required to pass that test, and finally refactor the code to improve clarity without breaking it.

Yes, test-driven development is ideal for fixing bugs and refactoring existing code. By writing a failing test that reproduces the bug first, you ensure your subsequent code changes fix the issue reliably without introducing new errors.

You should avoid test-driven development for trivial changes or exploratory spikes where high assurance of correctness is unnecessary. It is designed for programming tasks requiring robust software quality and minimal error through rigorous testing.

The best way to ensure code reliability and clarity is adhering to the test-driven development cycle. By writing failing tests first and refactoring only after tests pass, you enforce clean, robust code with minimal errors.

Test-driven development does not require specific testing frameworks or dependencies. It is a methodology focusing on the RED-GREEN-REFACTOR cycle, making it applicable across various programming tasks and tech stacks.