tdd-workflow

To apply the RED-GREEN-REFACTOR cycle for unit testing, you write a failing test first, implement the minimal code required to make it pass, and then refactor the structure while maintaining correct behavior.

The AAA testing pattern in test-first development organizes tests into three distinct phases: Arrange the necessary preconditions and inputs, Act on the test object, and Assert the expected outcomes against the actual results.

Start test-driven development by providing a failing unit test that defines the desired behavior, then implement the minimal code to pass that test before repeating the cycle for the next requirement.

Yes, the TDD workflow can be adapted for both unit and integration testing, providing a structured test-first mindset and repeatable refactoring guidance across various common software engineering tasks within your projects.

The best way to structure development using test-first principles is enforcing a repeatable workflow where tests dictate implementation, reducing defects by ensuring minimal code is written solely to pass structured AAA pattern tests.

You should avoid test-first development when exploring rapid prototypes with undefined behavior, as the strict requirement of writing failing tests before minimal implementation adds overhead to highly volatile software refactoring tasks.