Giorgio Sironi just finished his writeup on an introduction to PHPUnit testing. If you are new to PHPUnit, you should check it out.

• part 1: PHPUnit usage


• part 2: write clever tests


• part 3: assertions


• part 4: fixtures


• part 5: annotations


• part 6: refactoring and patterns


• part 7: stubs


• part 8: mocks


• part 9: command line options