A formal model representing the navigation behavior of a Web application as the Kripke structure is proposed and an approach that applies model checking to test case generation is presented. The Object Relation Diagra...A formal model representing the navigation behavior of a Web application as the Kripke structure is proposed and an approach that applies model checking to test case generation is presented. The Object Relation Diagram as the object model is employed to describe the object structure of a Web application design and can be translated into the behavior model. A key problem of model checking-based test generation for a Web application is how to construct a set of trap properties that intend to cause the violations of model checking against the behavior model and output of counterexamples used to construct the test sequences. We give an algorithm that derives trap properties from the object model with respect to node and edge coverage criteria.展开更多
As the increasing popularity and complexity of Web applications and the emergence of their new characteristics, the testing and maintenance of large, complex Web applications are becoming more complex and difficult. W...As the increasing popularity and complexity of Web applications and the emergence of their new characteristics, the testing and maintenance of large, complex Web applications are becoming more complex and difficult. Web applications generally contain lots of pages and are used by enormous users. Statistical testing is an effective way of ensuring their quality. Web usage can be accurately described by Markov chain which has been proved to be an ideal model for software statistical testing. The results of unit testing can be utilized in the latter stages, which is an important strategy for bottom-to-top integration testing, and the other improvement of extended Markov chain model (EMM) is to present the error type vector which is treated as a part of page node. this paper also proposes the algorithm for generating test cases of usage paths. Finally, optional usage reliability evaluation methods and an incremental usability regression testing model for testing and evaluation are presented. Key words statistical testing - evaluation for Web usability - extended Markov chain model (EMM) - Web log mining - reliability evaluation CLC number TP311. 5 Foundation item: Supported by the National Defence Research Project (No. 41315. 9. 2) and National Science and Technology Plan (2001BA102A04-02-03)Biography: MAO Cheng-ying (1978-), male, Ph.D. candidate, research direction: software testing. Research direction: advanced database system, software testing, component technology and data mining.展开更多
Model checking techniques have been widely used in verifying web service compositions to ensure the trustworthi- ness. However, little research has focused on testing web services. Based on the research of model check...Model checking techniques have been widely used in verifying web service compositions to ensure the trustworthi- ness. However, little research has focused on testing web services. Based on the research of model checking techniques~ we propose a model checking based approach for testing web service composition which is described by using the web services choreography description language （WS-CDL）. According to worldwide web consortium （W3C） candidate recommendation, the WS-CDL specification provides a language for characterizing interactions between distinct web services using XML. Since the behaviors of web service composition are asynchronous, distributed, low-coupled and platform independent, we employ the guarded automata （GA） model for specifying the composition described in WS-CDL and using the simple promela interpreter （SPIN） model checker for detecting the collaborations of web services. Test cases can be transformed from counterexamples generated by SPIN using adequacy criteria. In this paper we apply the transition coverage criterion for generating counterex- amples. To illustrate our approach, we set ＂E-commerce service system＂ as an example for demonstrating how test cases can be generated using SPIN for compositions specified in WS-CDL.展开更多
With the extensive application of Web technology,it becomes more and more critical of the request to thequality and reliability of Web applications. Then it is crucial to test Web applications automaticly,entirely and...With the extensive application of Web technology,it becomes more and more critical of the request to thequality and reliability of Web applications. Then it is crucial to test Web applications automaticly,entirely and thor-oughly. So we make a study of some Web testing methods and technologies. First,we discuss the necessity of Webtesting,then analyze where the faults may take place based on the architecture of the Web ,next discuss various meth-ods of Web testing in details. Then,based on the ideology of Object-Oriented,we build a model for Web testing,anddiscuss the method of doing some pertinence testing on pages when we utilize the information of statistic. At last,weintroduce some tools for white-box testing.展开更多
Web测试是保证高质量Web应用的一种有效技术。然而,由于其特殊性和复杂性,很难直接将传统的测试理论与方法学运用到Web应用的测试当中来。对Web应用进行了分析与建模,并对其进行测试,提出了一种可行的Web测试模型。首先得到页面流图(PFD...Web测试是保证高质量Web应用的一种有效技术。然而,由于其特殊性和复杂性,很难直接将传统的测试理论与方法学运用到Web应用的测试当中来。对Web应用进行了分析与建模,并对其进行测试,提出了一种可行的Web测试模型。首先得到页面流图(PFD,Page Flow Diagram),进而产生对象关系图(ORD,Object Relation Dia-gram),然后根据提出的算法将ORD转化为形式化的有限状态机(FSM,Finite State Machine)模型。基于FSM模型,提出了一种有效的测试路径自动生成方法,这些测试路径可以转化为XML语法的测试规格说明。测试引擎将测试规格说明作为输入最终产生测试报告。全文以所开发的一个小型的Web应用SWLS(Simple Web Login System)为例进行阐述。展开更多
随着 Web 应用软件的快速发展,作为保证 Web 质量和可靠性的重要手段,Web 应用软件测试受到了人们越来越多的重视。本文对现有的一些典型 Web 测试思想、技术和工具进行了一定的研究,首先描述了 Web 应用软件的特点,然后分析和比较了几...随着 Web 应用软件的快速发展,作为保证 Web 质量和可靠性的重要手段,Web 应用软件测试受到了人们越来越多的重视。本文对现有的一些典型 Web 测试思想、技术和工具进行了一定的研究,首先描述了 Web 应用软件的特点,然后分析和比较了几种测试模型、策略和方法,最后提出了一种基于 petri 网的 Web 链接模型。展开更多
测试Web软件面临极大的挑战。从构造Web软件的页面流图出发,提出了一种测试路径生成的方法,以一个简单的Web登录系统SWLS(Simple Web Login System)为例对该方法进行了阐述,并给出了Web软件测试的一种有效模型。该方法给页面流测试技术...测试Web软件面临极大的挑战。从构造Web软件的页面流图出发,提出了一种测试路径生成的方法,以一个简单的Web登录系统SWLS(Simple Web Login System)为例对该方法进行了阐述,并给出了Web软件测试的一种有效模型。该方法给页面流测试技术提供了一个有意义的基础。展开更多
基金Supported by the National Natural Science Foundation of China (60673115)the National Basic Research Program of China (973 Program) (2002CB312001)the Open Foundation of State Key Laboratory of Soft-ware Engineering (SKLSE05-13)
文摘A formal model representing the navigation behavior of a Web application as the Kripke structure is proposed and an approach that applies model checking to test case generation is presented. The Object Relation Diagram as the object model is employed to describe the object structure of a Web application design and can be translated into the behavior model. A key problem of model checking-based test generation for a Web application is how to construct a set of trap properties that intend to cause the violations of model checking against the behavior model and output of counterexamples used to construct the test sequences. We give an algorithm that derives trap properties from the object model with respect to node and edge coverage criteria.
文摘As the increasing popularity and complexity of Web applications and the emergence of their new characteristics, the testing and maintenance of large, complex Web applications are becoming more complex and difficult. Web applications generally contain lots of pages and are used by enormous users. Statistical testing is an effective way of ensuring their quality. Web usage can be accurately described by Markov chain which has been proved to be an ideal model for software statistical testing. The results of unit testing can be utilized in the latter stages, which is an important strategy for bottom-to-top integration testing, and the other improvement of extended Markov chain model (EMM) is to present the error type vector which is treated as a part of page node. this paper also proposes the algorithm for generating test cases of usage paths. Finally, optional usage reliability evaluation methods and an incremental usability regression testing model for testing and evaluation are presented. Key words statistical testing - evaluation for Web usability - extended Markov chain model (EMM) - Web log mining - reliability evaluation CLC number TP311. 5 Foundation item: Supported by the National Defence Research Project (No. 41315. 9. 2) and National Science and Technology Plan (2001BA102A04-02-03)Biography: MAO Cheng-ying (1978-), male, Ph.D. candidate, research direction: software testing. Research direction: advanced database system, software testing, component technology and data mining.
基金Project supported by the Open Foundation of State Key Laboratory of Software Engineering(Grant No.SKLSE20080712)the National Natural Science Foundation of China(Grant No.60970007)+2 种基金the National Basic Research Program of China(Grant No.2007CB310800)the Shanghai Leading Academic Discipline Project(Grant No.J50103)the Science and Technology Commission of Shanghai Municipality(Grant No.09DZ2272600)
文摘Model checking techniques have been widely used in verifying web service compositions to ensure the trustworthi- ness. However, little research has focused on testing web services. Based on the research of model checking techniques~ we propose a model checking based approach for testing web service composition which is described by using the web services choreography description language （WS-CDL）. According to worldwide web consortium （W3C） candidate recommendation, the WS-CDL specification provides a language for characterizing interactions between distinct web services using XML. Since the behaviors of web service composition are asynchronous, distributed, low-coupled and platform independent, we employ the guarded automata （GA） model for specifying the composition described in WS-CDL and using the simple promela interpreter （SPIN） model checker for detecting the collaborations of web services. Test cases can be transformed from counterexamples generated by SPIN using adequacy criteria. In this paper we apply the transition coverage criterion for generating counterex- amples. To illustrate our approach, we set ＂E-commerce service system＂ as an example for demonstrating how test cases can be generated using SPIN for compositions specified in WS-CDL.
文摘With the extensive application of Web technology,it becomes more and more critical of the request to thequality and reliability of Web applications. Then it is crucial to test Web applications automaticly,entirely and thor-oughly. So we make a study of some Web testing methods and technologies. First,we discuss the necessity of Webtesting,then analyze where the faults may take place based on the architecture of the Web ,next discuss various meth-ods of Web testing in details. Then,based on the ideology of Object-Oriented,we build a model for Web testing,anddiscuss the method of doing some pertinence testing on pages when we utilize the information of statistic. At last,weintroduce some tools for white-box testing.
文摘Web测试是保证高质量Web应用的一种有效技术。然而,由于其特殊性和复杂性,很难直接将传统的测试理论与方法学运用到Web应用的测试当中来。对Web应用进行了分析与建模,并对其进行测试,提出了一种可行的Web测试模型。首先得到页面流图(PFD,Page Flow Diagram),进而产生对象关系图(ORD,Object Relation Dia-gram),然后根据提出的算法将ORD转化为形式化的有限状态机(FSM,Finite State Machine)模型。基于FSM模型,提出了一种有效的测试路径自动生成方法,这些测试路径可以转化为XML语法的测试规格说明。测试引擎将测试规格说明作为输入最终产生测试报告。全文以所开发的一个小型的Web应用SWLS(Simple Web Login System)为例进行阐述。
文摘随着 Web 应用软件的快速发展,作为保证 Web 质量和可靠性的重要手段,Web 应用软件测试受到了人们越来越多的重视。本文对现有的一些典型 Web 测试思想、技术和工具进行了一定的研究,首先描述了 Web 应用软件的特点,然后分析和比较了几种测试模型、策略和方法,最后提出了一种基于 petri 网的 Web 链接模型。
