Used the following MS Test results file naming convention:
Which worked okay until we hit build #10, which should have passed. Found that the results parser was pull failures from older build 7 and bringing and failing the run.
My work-around is to reverse the rev and build variables in the file to:
a) Would make sense for the parser to key off of test results file's creation dates instead.
b) Would be nice if the timestamp variable was filename friendly (that's what I would have used instead to make Test Result file name unique.)