?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Angels+and+monsters%3A+An+empirical+investigation+of+potential+test+effectiveness+and+efficiency+improvement+from+strongly+subsuming+higher+order+mutation&rft.creator=Harman%2C+M&rft.creator=Jia%2C+Y&rft.creator=Mateo%2C+PR&rft.creator=Polo%2C+M&rft.description=We+study+the+simultaneous+test+effectiveness+and+efficiency+improvement+achievable+by+Strongly+Subsuming+Higher+Order+Mutants+(SSHOMs)%2C+constructed+from+15%2C792+first+order+mutants+in+four+Java+programs.+Using+SSHOMs+in+place+of+the+first+order+mutants+they+subsume+yielded+a+35%25-45%25+reduction+in+the+number+of+mutants+required%2C+while+simultaneously+improving+test+efficiency+by+15%25+and+effectiveness+by+between+5.6%25+and+12%25.+Trivial+first+order+faults+often+combine+to+form+exceptionally+non-trivial+higher+order+faults%3B+apparently+innocuous+angels+can+combine+to+breed+monsters.+Nevertheless%2C+these+same+monsters+can+be+recruited+to+improve+automated+test+effectiveness+and+efficiency.&rft.publisher=ACM&rft.contributor=Crnkovic%2C+I&rft.contributor=Chechik%2C+M&rft.contributor=Gr%C3%BCnbacher%2C+P&rft.date=2014-09-15&rft.type=Proceedings+paper&rft.language=eng&rft.source=+++++In%3A+Crnkovic%2C+I+and+Chechik%2C+M+and+Gr%C3%BCnbacher%2C+P%2C+(eds.)+ASE+'14%3A+Proceedings+of+the+29th+ACM%2FIEEE+International+Conference+on+Automated+Software+Engineering.++(pp.+pp.+397-408).++ACM%3A+New+York%2C+USA.+(2014)+++++&rft.format=text&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F1456659%2F1%2FHandley_angels_and_monsters_an_empirical.pdf&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F1456659%2F&rft.rights=open