Hi. There is a loop when trying to debug #expectedFailures. To reproduce, just put a "self halt" at the beggining of a #expectedFailures method and then run of the tests of that class. The problem is that when you put the self halt, in an #expectedFailures, it brings a debugger, of course. But the debuggers needs to send the printOn to all the stuff in the context. TestResult implements printOn: in this way: printOn: aStream aStream nextPutAll: self runCount printString; nextPutAll: ' run, '; nextPutAll: self expectedPassCount printString; nextPutAll: ' passes, '; nextPutAll: self expectedDefectCount printString; nextPutAll:' expected failures, '; nextPutAll: self unexpectedFailureCount printString; nextPutAll: ' failures, '; nextPutAll: self unexpectedErrorCount printString; nextPutAll:' errors, '; nextPutAll: self unexpectedPassCount printString; nextPutAll:' unexpected passes'. which...as you can see sends the message #expectedPassCount which at the ends...sends #expectedFailure.....sooo....loop :) I am still thinking which could be the better solution. I will try to come up with it later. Cheers Mariano