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A code coverage calculator determines the percentage of codebase lines, branches, or functions executed by tests. Coverage = (tested lines ÷ total lines) × 100. Most teams target 70–80% coverage; 100% coverage is neither practical nor sufficient for quality assurance.

단계별 가이드

1. 1Identify shortcuts and workarounds
2. 2Estimate refactoring effort
3. 3Calculate opportunity cost

풀어진 예시

피해야 할 일반적인 실수

• ✕Wrong parameters
• ✕Missing adjustments

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