How do I use mutation testing tools effectively?

What are mutation testing tools and how do they work?

Mutation testing tools are used to evaluate the quality of your tests by introducing small changes (mutations) to your code. They help identify areas where your tests may be lacking.

Can you give me an example of a mutation testing tool?

Sure! One popular mutation testing tool is 'PIT' for Java. It creates mutants of your code and checks if your tests can catch the changes.

How do I set up PIT for my project?

To set up PIT, you need to add it as a dependency in your project, configure it in your build tool, and then run it to generate mutation reports.

What should I do if my tests don't catch any mutations?

If your tests don't catch any mutations, it may indicate that your tests are insufficient. You should review and enhance your test cases to cover more scenarios.