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Testing

Testing Skill

Ab-aswini Updated
AI & ML

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Testing Skill

Loaded by: QA Division agents | Version: 1.0

Test Pyramid

        /  E2E  \        <- Few, slow, expensive
       / Integr. \      <- Some, moderate
      /   Unit    \     <- Many, fast, cheap

Unit Test Pattern (Arrange, Act, Assert)

def test_user_creation():
    # Arrange
    user_data = {"name": "Alice", "email": "alice@test.com"}
    # Act
    user = UserService.create(user_data)
    # Assert
    assert user.name == "Alice"
    assert user.id is not None

Coverage: 80% minimum, 100% on critical paths

Naming: test_[unit]_[scenario]_[expected_result]

Mocking

  • Mock external services, not the thing under test
  • Prefer dependency injection over monkey patching

Anti-Patterns

  • Tests dependent on execution order or external services
  • Tests without assertions; flaky timing-dependent tests
  • Testing implementation instead of behavior

Checklist

  • All public APIs have tests
  • Edge cases covered
  • Tests are independent and deterministic
  • Coverage above 80%
  • Test names describe behavior

Ab-aswini/Agent-kit-P1/tree/main/.agent-os/skills/testing commit d7abee940f

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