Mutation Testing

Mutation testing is used to design new software tests and evaluate the quality of existing software tests.
Contributed by

Sebastien Wains

Published July 25, 2022
Collection
1

What Is Mutation Testing?

Mutation testing involves modifying a program in small ways.

Each mutated version is called a mutant and tests detect and reject mutants by causing the behavior of the original version to differ from the mutant. This is called killing the mutant.

Why Do Mutation Testing?

The goals of mutation testing are multiple:

  • identify weakly tested pieces of code (those for which mutants are not killed)
  • identify weak tests (those that never kill mutants)
  • compute the mutation score, the mutation score is the number of mutants killed / total number of mutants.
  • learn about error propagation and state infection in the program

How to do Mutation Testing?

Python

C#, Scala, Javascript

Look at Mutation Testing

Links we love

Check out these great links which can help you dive a little deeper into running the Mutation Testing practice with your team, customers or stakeholders.


Open Practice Library Logo
Open Practice Library

powered by

Open Innovation Labs Logo
Connect with our Community:
Except where noted, content on this site is licensed under a Creative Commons Attribution 4.0 International license.