testing-anti-patterns
Use to avoid critical testing mistakes. Five Iron Laws: Never test mock behavior, Never add test-only methods, Never mock without understanding, Always integration test, Always test error paths.
Also installable via skills CLI
npx skills add Smooth-Operation/household-expense-tracker/.claude/skills/testing/testing-anti-patterns
Source
Path:
.claude/skills/testing/testing-anti-patterns/SKILL.md(main)