Who Tests the Tests? An Introduction to Mutation Testing with Infection (PHP)
Welcome to The Engineering Coach! As a professional developer, you know that code coverage is important, but have you ever wondered, "What about my tests? Are they actually any good?"
In this video, we'll answer that question by diving into Mutation Testing with Infection, a powerful PHP framework. Mutation testing deliberately introduces small bugs (called "mutants") into your code to see if your tests can catch them. If a test fails, the mutant is "killed"—a good sign! If the mutant survives, it means your test suite isn't as robust as you thought.
You'll see a practical demonstration of how Infection works, and how it can help you write more confident, bug-proof code.
The code for this episode can be found on GitHub: https://github.com/the-engineering-co...
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