| 1. |
- Mehmood, M. A., et al.
(författare)
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Automating Test Data Generation for Testing Context-Aware Applications
- 2018
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Ingår i: Proceedings of the IEEE International Conference on Software Engineering and Service Sciences, ICSESS. - : IEEE Computer Society. - 9781538665640 ; , s. 104-108
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Konferensbidrag (refereegranskat)abstract
- Context-aware applications are emerging applications in the modern era of computing. These applications can determine and adapt to situational context to provide better user experience. Testing these applications is not straightforward and poses several challenges such as developing context-aware test cases and generating test data etc. However, by employing model based testing technique, testing process for context-aware applications can be automated. To achieve maximum degree of automation, it is necessary to automate model transformation, test data generation and test cases execution. To execute test cases, test data is required and developing test data for context-aware applications is a challenging task. The aim of this study is to address this issue; thus, we propose automated test data generation for functional testing of context-aware applications. This automated test data generation can reduce testing time and cost, thus enabling test engineers to execute more testing cycles to attain higher degree of test coverage.
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| 2. |
- Mehmood, M. A., et al.
(författare)
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Transforming context-aware application development model into a testing model
- 2017
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Ingår i: Proceedings of the IEEE International Conference on Software Engineering and Service Sciences, ICSESS. - : IEEE Computer Society. - 9781538645703 ; , s. 177-182
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Konferensbidrag (refereegranskat)abstract
- Software testing aims at ensuring the quality of a software product. Context-aware applications are emerging applications that are capable to sense their environment and adapt to situational context to provide better user experience. Context-aware applications pose many challenges for software testing such as defining test adequacy criteria, generating test data, developing context-aware test cases etc. Test case generation process for context-aware applications can be automated using a model based testing technique. To attain this goal with maximum degree of automation, it is required to transform development model into a test model automatically. In this study, we propose a typecast of activity node of UML activity diagram, called Context-Aware Activity for modelling context-aware applications. We have also developed an approach for automatic transformation of the development model i.e., UML activity diagram with Context-aware Activity typecast into a testing model i.e. function nets. This testing model is used to automate test case generation and we have illustrated how to generate context-aware test cases using our proposed approach.
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| 3. |
- McCormack, Ryan, et al.
(författare)
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Perforin-2 Protects Host Cells and Mice by Restricting the Vacuole to Cytosol Transitioning of a Bacterial Pathogen
- 2016
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Ingår i: Infection and Immunity. - 0019-9567 .- 1098-5522. ; 84:4, s. 1083-1091
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Tidskriftsartikel (refereegranskat)abstract
- The host-encoded Perforin-2 (encoded by the macrophage-expressed gene 1, Mpeg1), which possesses a pore-forming MACPF domain, reduces the viability of bacterial pathogens that reside within membrane-bound compartments. Here, it is shown that Perforin-2 also restricts the proliferation of the intracytosolic pathogen Listeria monocytogenes. Within a few hours of systemic infection, the massive proliferation of L. monocytogenes in Perforin-2(-/-) mice leads to a rapid appearance of acute disease symptoms. We go on to show in cultured Perforin-2(-/-) cells that the vacuole-to-cytosol transitioning of L. monocytogenes is greatly accelerated. Unexpectedly, we found that in Perforin-2(-/-) macrophages, Listeria-containing vacuoles quickly (<= 15 min) acidify, and that this was coincident with greater virulence gene expression, likely accounting for the more rapid translocation of L. monocytogenes to its replicative niche in the cytosol. This hypothesis was supported by our finding that a L. monocytogenes strain expressing virulence factors at a constitutively high level replicated equally well in Perforin-2(+/+) and Perforin-2(-/-) macrophages. Our findings suggest that the protective role of Perforin-2 against listeriosis is based on it limiting the intracellular replication of the pathogen. This cellular activity of Perforin-2 may derive from it regulating the acidification of Listeria-containing vacuoles, thereby depriving the pathogen of favorable intracellular conditions that promote its virulence gene activity.
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