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build.test-mutation-score Calculator
Calculates mutation score — the percentage of code mutations caught by the test suite — from mutants introduced and killed. A 90% line coverage suite with 50% mutation score means half the injected bugs go undetected — mutation testing reveals gaps that coverage metrics hide.
Inputs
Mutants
Reference formula or conversion factor shown for context.
Killed
Reference formula or conversion factor shown for context.
Tests
Reference formula or conversion factor shown for context.
Results
mutation score
A numerical rating from the scoring model in use.
survived mutants
Sample size or count used in the calculation.
tests/mutant
Sample size or count used in the calculation.
defect escape risk
Overall risk level based on the computed score or classification. Higher risk may call for mitigating actions or additional review.