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Auflistung nach Autor:in "Kolassa, Carsten"

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  • Konferenzbeitrag
    Developer belief vs. reality: the case of the commit size distribution
    (Software Engineering 2012, 2012) Riehle, Dirk; Kolassa, Carsten; Salim, Michel A.
    The design of software development tools follows from what the developers of such tools believe is true about software development. A key aspect of such beliefs is the size of code contributions (commits) to a software project. In this paper, we show that what tool developers think is true about the size of code contributions is different by more than an order of magnitude from reality. We present this reality, called the commit size distribution, for a large sample of open source and selected closed source projects. We suggest that these new empirical insights will help improve software development tools by aligning underlying design assumptions closer with reality.
  • Konferenzbeitrag
    Tunit - unit testing for template-based code generators
    (Modellierung 2016, 2016) Kolassa, Carsten; Look, Markus; Müller, Klaus; Roth, Alexander; Reiß, Dirk; Rumpe, Bernhard
    Template-based code generator development as part of model-driven development (MDD) demands for strong mechanisms and tools that support developers to improve robustness, i.e., the desired code is generated for the specified inputs. Although different testing methods have been proposed, a method for testing only parts of template-based code generators that can be employed in the early stage of development is lacking. Thus, in this paper we present an approach and an implementation based on JUnit to test template-based code generators. Rather than testing a complete code generator, it facilitates partial testing by supporting the execution of templates with a mocked environment. This eases testing of code generators in early stages of development as well as testing new or changed parts of a code generator. To test the source code generated by the templates under test, different methods are presented including string comparisons, API-based assertions, and abstract syntax tree based assertions.