I built a single compile Mutation testing lib for Kotlin which runs inside your normal test suite

📰 Dev.to · Andreas Schnapp

Learn how to improve your Kotlin test suite with MutFlow, a compiler plugin for fast mutation testing within JUnit

intermediate Published 3 Mar 2026
Action Steps
  1. Build a test suite using JUnit for your Kotlin project
  2. Configure MutFlow as a K2 compiler plugin
  3. Run mutation testing using MutFlow within your normal test suite
  4. Test and validate the effectiveness of your test suite with MutFlow
  5. Apply MutFlow to your existing test suite to improve its reliability
Who Needs to Know This

Developers and QA engineers on a team can benefit from MutFlow to ensure the reliability and effectiveness of their Kotlin test suite

Key Insight

💡 MutFlow integrates mutation testing directly into your JUnit test suite, making it easier to ensure test reliability

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Boost your Kotlin test suite with MutFlow!

Key Takeaways

Learn how to improve your Kotlin test suite with MutFlow, a compiler plugin for fast mutation testing within JUnit

Full Article

Improve your Kotlin test suite with MutFlow: a K2 compiler plugin for fast, integrated mutation testing that runs directly within JUnit.
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