It is said that the beauty of testing is found not in the effort but in the effiency. Knowing what should be tested is beautiful, and knowing what is being tested is beautiful. Code Coverage, which is a measure used to describe the degree to which the code is tested, can help with the latter.PHPUnit has had support for code coverage analysis for a long time. This is one of the features that is extended and improved with each release of PHPUnit. This session, presented by the creator of PHPUnit, will code all aspects of PHPUnit's code coverage functionality in depth. Attendees of this session will learn how to leverage this important functionality more effectively to augment and guide their testing effort.