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Testing or for other reasons do not introduce

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testing or for other reasons) do not introduce unintended behavior or additional errors Regression testing may be conducted manually, by re- executing a subset of all test cases or using automated capture/playback tools CS352 Software Engineering II
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Object Oriented Testing Begins by evaluating the correctness and consistency of the analysis and design models. Testing strategy changes: Dr. Omar Hamdy Spring 2011 12 – the concept of the ‘unit’ broadens due to encapsulation – integration focuses on classes and their execution across a ‘thread’ or in the context of a usage scenario CS352 Software Engineering II
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Broadening The View It can be argued that the review of OO analysis and design models is especially useful because the same semantic constructs (e.g., classes, attributes, operations, messages) appear at the analysis, design, and code level. Dr. Omar Hamdy Spring 2011 13 Therefore, a problem in the definition of class attributes that is uncovered during analysis will circumvent side effects that might occur if the problem were not discovered until design or code (or even the next iteration of analysis). CS352 Software Engineering II
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OO Testing Strategy class testing is the equivalent of unit testing – operations within the class are tested – the state behavior of the class is examined integration applied two different strategies Dr. Omar Hamdy Spring 2011 14 – thread-based testing—integrates the set of classes required to respond to one input or event – use-based testing—integrates the set of classes required to respond to one use case CS352 Software Engineering II
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High Order Testing Validation testing Focus is on software requirements System testing Focus is on system integration Alpha/Beta testing Focus is on customer usage Recovery testing forces the software to fail in a variety of ways and verifies that recovery is properly Dr. Omar Hamdy Spring 2011 15 performed
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