If you're not careful, it's easy to find yourself in a situation where a test double has gotten out of sync with the actual class or interface it's mocking.
In this quick screencast (taken from my Test-Driven Laravel course), I walk through how I use a little-known Mockery feature to help track down these issues and make sure I'm not mocking methods that don't exist.
Trying to wrap your head around testing? Test-Driven Laravel is a course I recently launched that teaches you how to TDD an app from start to finish. Learn more about it here.