How Mutation Testing Finds Bugs Your Tests Miss
from Software Testing with Fexingo: QA, Automation, and Reliable Software Engineering Hosted by Fexingo
Mutation testing is a technique that deliberately introduces small changes to your source code to see if your test suite catches them. In this episode, Lucas and Luna break down how mutation testing exposes weaknesses in test coverage that traditional metrics miss. Lucas explains the concept with a concrete example: a simple tax calculation function and a test suite that passes line coverage but fails to catch a mutated operator. Luna shares a story about a team that found critical bugs in a payment processing system after applying mutation testing. They discuss practical strategies for integrating mutation testing into your CI pipeline without exploding build times, including how to use mutation scores to guide test improvement. By the end, you will understand how mutation testing can reveal blind spots in your test suite and why it is becoming an essential practice for teams that care about software reliability. Episode 104 of Software Testing with Fexingo. #MutationTesting #TestCoverage #SoftwareTesting #QA #Automation #CIPipeline #BugDetection #CodeQuality #TestEffectiveness #SoftwareReliability #Java #JUnit #PIT #StrykerMutator #Tech #FexingoBusiness #BusinessPodcast #Technology Keep every episode free: buymeacoffee.com/fexingo
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