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ISSTA 2018
Sun 15 - Sat 21 July 2018 Amsterdam, Netherlands
co-located with ECOOP and ISSTA 2018
Tue 17 Jul 2018 16:00 - 16:20 at Zurich II - Test and Oracle Generation Chair(s): Sarfraz Khurshid

Unit tests are labor-intensive to write and maintain. This paper looks into the possibility of automatically generating tests for a software package from the execution traces of clients of that package. Our objectives are to reduce the effort in creating test suites, minimizing the number and size of individual tests while maximizing coverage. To evaluate the viability of our approach we selected a challenging target for automated test genration, namely R, a programming language that is popular for data science applications. The challenges presented by R are its extreme dynamism and the lack of types. The combination of these decrease the efficacy of traditional test generation techniques. We present Genthat, a tool that we have developed over the last couple of years to, non- invasively, record execution traces of R programs and extract unit tests from those traces. We have carried out an evaluation on 1.7M lines of R code. The unit tests generated by Genthat improved code coverage on average from 267,113 lines to 704,450 lines.

Tue 17 Jul
Times are displayed in time zone: Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna change

16:00 - 17:30: Test and Oracle GenerationISSTA Technical Papers at Zurich II
Chair(s): Sarfraz KhurshidUniversity of Texas at Austin
16:00 - 16:20
ISSTA Technical Papers
Filip KřikavaCzech Technical University, Jan VitekNortheastern University
16:20 - 16:40
ISSTA Technical Papers
Arianna BlasiUniversità della Svizzera italiana (USI) and IMDEA Software Institute, Alberto GoffiUniversità della Svizzera italiana (USI), Konstantin KuznetsovSaarland University, CISPA, Alessandra GorlaIMDEA Software Institute, Michael D. ErnstUniversity of Washington, USA, Mauro PezzèUniversity of Milano-Bicocca, Italy, Sergio Delgado CastellanosIMDEA Software Institute
16:40 - 17:00
ISSTA Technical Papers
Caroline LemieuxUniversity of California, Berkeley, Rohan PadhyeUniversity of California, Berkeley, Koushik SenUniversity of California, Berkeley, Dawn Song
17:20 - 17:30
ISSTA Technical Papers