testing-craft

What problem does it solve?

testing-craft eliminates brittle, low-signal unit tests by standardizing how worker-tester agents structure tests, isolate dependencies, and verify outcomes with clear, maintainable assertions.

Core Features & Use Cases

• Test anatomy discipline (AAA + four-phase): enforce consistent Arrange/Act/Assert and setup/exercise/verify/teardown structure for readability and faster defect localization.
• Isolation with the right test doubles: choose dummy/stub/spy/mock/fake appropriately, with guardrails like “state verification first” and “wrap what you don’t own.”
• Fixture and verification patterns: prefer fresh fixtures, creation methods, meaningful assertion messages, expected objects, and one logical assertion per test.
• Test smell diagnostics: identify and fix common problems like Mystery Guest, Assertion Roulette, Eager Test, Fragile/Interacting/Slow tests, and General Fixture.

Quick Start

Use testing-craft when a worker-tester needs to write or refactor a unit test for a new behavior, a regression after a bug fix, or to untangle a flaky/obscure suite.