On the QaFoo blog today there's a new tutorial posted showing you how to make unit test mocks with Phake, a testing tool that works a bit differently that other options (PHPUnit's own mocking and Mockery).

The use of Mock and Stub Objects is an important skill to learn when using Test Driven Development (TDD). Mock objects allow you to replace dependencies of an object with lookalikes, much like crash test dummies are used during automobile safety tests so humans aren't harmed. [...] Using Mocks in PHPUnit tests means using the built-in MockObjects library for quite some years. In the last years two contenders emerged that can be used as optional dependencies in PHPUnit. [...] This blog post introduces Phake, because it works quite differently than both PHPUnit Mock Objects and Mockery.

They include a code example of how to create mocks with Phake, showing it's different approach to defining the mocked methods. They explain each part of the code, detailing the use of the "when", "thenReturn" and "verify" methods. You can find out more about Phake and see other examples in the project's documentation.