?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=OASIs%3A+Oracle+assessment+and+improvement+tool&rft.creator=Jahangirova%2C+G&rft.creator=Clark%2C+D&rft.creator=Harman%2C+M&rft.creator=Tonella%2C+P&rft.description=The+oracle+problem+remains+one+of+the+key+challenges+in+software+testing%2C+for+which+little+automated+support+has+been+developed+so+far.+We+introduce+OASIs%2C+a+search-based+tool+for+Java+that+assists+testers+in+oracle+assessment+and+improvement.+It+does+so+by+combining+test+case+generation+to+reveal+false+positives+and+mutation+testing+to+reveal+false+negatives.+In+this+work%2C+we+describe+how+OASIs+works%2C+provide+details+of+its+implementation%2C+and+explain+how+it+can+be+used+in+an+iterative+oracle+improvement+process+with+a+human+in+the+loop.+Finally%2C+we+present+a+summary+of+previous+empirical+evaluation+showing+that+the+fault+detection+rate+of+the+oracles+after+improvement+using+OASIs+increases%2C+on+average%2C+by+48.6%25.&rft.subject=Test+oracle%3B+oracle+assessment%3B+oracle+improvement%3B+test+case+generation%3B+mutation+testing&rft.publisher=ACM&rft.date=2018-07-12&rft.type=Proceedings+paper&rft.language=eng&rft.source=+++++In%3A++Proceedings+of+the+27th+ACM+SIGSOFT+International+Symposium+on+Software+Testing+and+Analysis.++(pp.+pp.+368-371).++ACM%3A+New+York%2C+NY%2C+USA.+(2018)+++++&rft.format=text&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10055112%2F1%2Fmain.pdf&rft.identifier=https%3A%2F%2Fdiscovery.ucl.ac.uk%2Fid%2Feprint%2F10055112%2F&rft.rights=open