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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.

ステップバイステップガイド

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

解いた例

避けるべきよくある間違い

• ✕Wrong parameters
• ✕Missing adjustments

よくある質問