unit-test-utility-methods

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Tool: SKILL.md [1/2] Description: --- name: unit-test-utility-methods description: Provides patterns for unit testing utility/helper classes and static methods.

Tool: SKILL.md [2/2] Description: cases - Not testing negative numbers and extreme values - Test methods too large - split complex scenarios ## Constraints and Warnings - **Static methods cannot be mocked**: Use reflection-based utilities like PowerMock only when absolutely necessary - **Pure function requirement**: Utility methods should be pure functions; testing stateful utilities is difficult - **Floating point precision**: Never use exact equality for floating point comparisons; use toleran