JavaScript Mutation Testing: Improving Confidence in Your Tests

JavaScript code requires effective testing strategies to avoid bugs in production. Code coverage metrics alone can be misleading and don't necessarily indicate that the code is actually working as intended. It can be easy to get high code coverage metrics, but not actually test anything meaningfully. To address this problem, this session will explore the concept of JavaScript mutation testing. Mutation testing introduces small changes or "mutations" to the code and then expects tests to fail. This technique helps identify areas of the code that may need improvement and strengthens the tests. Attendees will learn how to implement mutation testing in their own projects and why it can improve confidence in their tests.