pitest-mutation

Overview

Per pit-home:

"PIT is a mutation testing system for Java and JVM applications. It automatically introduces faults into code, then runs tests to see if they catch these modifications."

"Faults (or mutations) are automatically seeded into your code, then your tests are run. If your tests fail then the mutation is killed, if your tests pass then the mutation lived." (pit-home)

Per pit-home, PIT differentiates on speed: "analyzes in minutes rather than days" vs older mutation tools.