In this paper, by means of effective testing practices, main strategies of integration testing for GUI software, including differentiating strategy for distinguished system, strategy of personnel organization, increme...In this paper, by means of effective testing practices, main strategies of integration testing for GUI software, including differentiating strategy for distinguished system, strategy of personnel organization, incremental testing strategy based on baseline version, testing strategy of circulating loop through the whole life, and the strategy of test suite construction, were briefly investigated. Moreover, for the code analysis, the FTA (Fault Tree analysis) is proposed to deal with the software change in regression testing. For test suite constructing, the constructing methods for baseline version and the incremental change are deeply discussed, in which main points focus on the testing strategy based on “Sheet/Form”, the “Grey-box approach” for integration testing process, and the application of the improved STD (State Transform Diagram) in state testing. At the same time, the suite construction of integration testing for two types, including small scale program and large scale software, is analyzed and discussed in detail. For testing execution, the specific method based on “Cross-testing” is investigated. Concurrently, by a lot of examples, all results of testing activity indicate that these strategies and methods are useful and fitted to integration testing for GUI software.展开更多
this paper describes the design of a feedback testing system for locomtive tractionmotor. The structures and features of the software and hardware of themicrocomputer control system have been studied. This testing sys...this paper describes the design of a feedback testing system for locomtive tractionmotor. The structures and features of the software and hardware of themicrocomputer control system have been studied. This testing system hasalready been put into operation successfully in several locomotive depots inChina.展开更多
针对影子栈难以兼顾安全性和性能,软件实现的前向CFI(control-flow integrity)技术性能开销过大、难以进行实际部署,提出基于软硬件结合的CFI(control-flow integrity based on the combination of software and hardware,SHCFI)技术。...针对影子栈难以兼顾安全性和性能,软件实现的前向CFI(control-flow integrity)技术性能开销过大、难以进行实际部署,提出基于软硬件结合的CFI(control-flow integrity based on the combination of software and hardware,SHCFI)技术。通过二进制重写器对程序反编译,生成中间语言,并判断转移指令类型。对于后向控制流的保护,提出基于返回地址加密的平行影子栈方案,使用随机数对栈上的返回地址进行异或加密,将加密结果备份到原始栈固定偏移处的影子栈中,在函数返回时对影子栈中的地址异或解密,将解密结果作为实际的返回地址。对于前向控制流的保护,使用硬件ENDBRANCH状态机指令标记间接转移指令的目标地址,在运行时对目标地址进行合法性检查,以降低性能开销。实验结果表明,SHCFI加固后的程序能够有效地防御代码重用攻击,且具有良好的运行开销。展开更多
Robustness testing for safety-critical embedded software is still a challenge in its nascent stages. In this paper, we propose a practical methodology and implement an environment by employing model-based robustness t...Robustness testing for safety-critical embedded software is still a challenge in its nascent stages. In this paper, we propose a practical methodology and implement an environment by employing model-based robustness testing for embedded software systems. It is a system-level black-box testing approach in which the fault behaviors of embedded software is triggered with the aid of modelbased fault injection by the support of an executable model-driven hardware-in-loop （HIL） testing environment. The prototype implementation of the robustness testing environment based on the proposed approach is experimentally discussed and illustrated by industrial case studies based on several avionics-embedded software systems. The results show that our proposed and implemented robustness testing method and environment are effective to find more bugs, and reduce burdens of testing engineers to enhance efficiency of testing tasks, especially for testing complex embedded systems.展开更多
文摘In this paper, by means of effective testing practices, main strategies of integration testing for GUI software, including differentiating strategy for distinguished system, strategy of personnel organization, incremental testing strategy based on baseline version, testing strategy of circulating loop through the whole life, and the strategy of test suite construction, were briefly investigated. Moreover, for the code analysis, the FTA (Fault Tree analysis) is proposed to deal with the software change in regression testing. For test suite constructing, the constructing methods for baseline version and the incremental change are deeply discussed, in which main points focus on the testing strategy based on “Sheet/Form”, the “Grey-box approach” for integration testing process, and the application of the improved STD (State Transform Diagram) in state testing. At the same time, the suite construction of integration testing for two types, including small scale program and large scale software, is analyzed and discussed in detail. For testing execution, the specific method based on “Cross-testing” is investigated. Concurrently, by a lot of examples, all results of testing activity indicate that these strategies and methods are useful and fitted to integration testing for GUI software.
文摘this paper describes the design of a feedback testing system for locomtive tractionmotor. The structures and features of the software and hardware of themicrocomputer control system have been studied. This testing system hasalready been put into operation successfully in several locomotive depots inChina.
文摘针对影子栈难以兼顾安全性和性能,软件实现的前向CFI(control-flow integrity)技术性能开销过大、难以进行实际部署,提出基于软硬件结合的CFI(control-flow integrity based on the combination of software and hardware,SHCFI)技术。通过二进制重写器对程序反编译,生成中间语言,并判断转移指令类型。对于后向控制流的保护,提出基于返回地址加密的平行影子栈方案,使用随机数对栈上的返回地址进行异或加密,将加密结果备份到原始栈固定偏移处的影子栈中,在函数返回时对影子栈中的地址异或解密,将解密结果作为实际的返回地址。对于前向控制流的保护,使用硬件ENDBRANCH状态机指令标记间接转移指令的目标地址,在运行时对目标地址进行合法性检查,以降低性能开销。实验结果表明,SHCFI加固后的程序能够有效地防御代码重用攻击,且具有良好的运行开销。
基金the Aeronautics Science Foundation of China(No.2011ZD51055)Science and Technology on Reliability&Environmental Engineering Laboratory(No.302367)the National Pre-Research Foundation of China(No.51319080201)
文摘Robustness testing for safety-critical embedded software is still a challenge in its nascent stages. In this paper, we propose a practical methodology and implement an environment by employing model-based robustness testing for embedded software systems. It is a system-level black-box testing approach in which the fault behaviors of embedded software is triggered with the aid of modelbased fault injection by the support of an executable model-driven hardware-in-loop （HIL） testing environment. The prototype implementation of the robustness testing environment based on the proposed approach is experimentally discussed and illustrated by industrial case studies based on several avionics-embedded software systems. The results show that our proposed and implemented robustness testing method and environment are effective to find more bugs, and reduce burdens of testing engineers to enhance efficiency of testing tasks, especially for testing complex embedded systems.
