From: Keith Ray Date: 2001-12-15T23:30:57+09:00 Subject: [ruby-talk:28617] Re: John Roth dolt ( Re: A challenge to proponents of Unit Testing. ) In article , brangdon@cix.co.uk (Dave Harris) wrote: > ronjeffries@REMOVEacm.org (Ron Jeffries) wrote (abridged): > > Coverage is interesting, and some XP teams are using it. > > Do you have any figures on the kinds of coverage that result from normal > XP? Is it 95% or more like 45%? Does it tend to drop as the project ages? > > I am asking as a way of comparing XP with other methodologies. Someone on the XP mailing list said that their first measurement of unit test coverage, after doing XP for a while, was 68% (If I recall correctly.) Keep in mind that unit tests don't cover GUI code, usually. They used the measurements to improve their unit testing, and I think it got up to over 80% or maybe higher, and it remained high as they continued their project.