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Mutation Testing Tools Achieve 63% Adoption for Measuring Test Suite Quality

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Mutation testing with Stryker and PIT reaches 63% adoption in CI/CD pipelines, revealing codebases with 90%+ line coverage often have only 65% mutation score. Spotify and Netflix require 75%+ mutation coverage gates, uncovering 2-3x more bugs than traditional coverage and improving production stability by 28%.

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