test-driven-development

Test-driven development prevents buggy code behavior by forcing you to write failing tests before implementation, ensuring features are validated and regressions are caught early in the cycle.

The red-green-refactor cycle is a TDD process where you write a failing test, implement the minimal production code to make it pass, and then iterate to improve software quality and design.

To start test-driven development, write a failing test that defines the desired behavior, implement the minimal code required to pass that test, and iterate until all tests pass successfully.

Yes, test-driven development can be applied to bug fixes and refactors across software projects to validate behavior before production, ensuring software quality and reliability during incremental updates.

The best way to validate undefined behavior is enforcing tests-first development, which guides you to write minimal production code that makes failing tests pass, effectively validating behavior before production.

Writing failing tests before implementing minimal production code drives solid, test-backed code by ensuring the test actually validates the new behavior and guides the implementation accurately.