Hi - I'm using Hapao (downloaded today) and Pharo 1.3 and noticed that there are a bunch of DNU errors reported in the transcript. The missing method is either from the MethodSpy class or the HapaoTestCoverageMethodSpy class. Adding MethodSpy>>isAbstract ^false "fixes" the errors that are reported to the Transcript. But I'm not sure what the isAbstract test is all about so don't know what functionality I'm missing. Thanks Paul