Uma estrategia para testes de regressão utilizando classes testaveis

AUTOR(ES)
DATA DE PUBLICAÇÃO

2004

RESUMO

A reusable class has to be testable since it should be tested many times: when a class is changed, when its superclass is changed, when its client andjor server classes are changed. Therefore, it is important that this class be easy to test, that is, be testable. There is an increase on the testability of the system when testable classes are used. A previous research elaborated a testable class, which includes the class implementation, a model to represent its behaviour, as well as built-in test (BIT) mechanisms. Regression testing activity involves testing the modified program to ensure that new features do not regress to the existing features, that is, regression testing is applied to the modified software to provide confidence that the unchanged parts have not been adversely affected by the modification. This work intends to answer the following question: how to use test information contained on the testable class to do regression testing? The answer involves some definitions: (i) a strategy of regression test selection - in this work we propose a regression test selection technique based on the class behaviour model, despite the fact that the majority of existing techniques are code-based; and (ii) a way to generate tests to new features resulted from the class modifications. This technique is applied not only to base class context but also to derived classes. Besides the fact that the source code is not needed in this technique, which makes it useful to component testing in which the source code is not available, the technique can also be totally automated

ASSUNTO(S)

software - validação engenharia de software software - testes

ACESSO AO ARTIGO

Documentos Relacionados