Code coverage can provide two things 1) It can be a signal, a low number raises a red flag, but a high number doesn't raise a green flag. 2) It can be a great

Code coverage can provide two things 1) It can be a signal, a low number raises a red flag, but a high number doesn't raise a green flag. 2) It can be a great analysis tool. When you have partial coverage, digging through the coverage reports and seeing where you don't have coverage can tell you a lot about what isn't being tested, what the test writers assumptions were, etc.