Recent techniques for fault localization leverage code coverage to address the high cost problem of debugging. These exploit correlations between program failures and entities as clue in locating faults. Experimental evidence shows that effectiveness these can be affected adversely by coincidental correctness, which occurs when a is executed but no failure detected. In this paper, we propose an approach problem. We refine test runs using control- data-flow patterns prescribed different...

Coverage-based fault-localization techniques find the fault-related positions in programs by comparing execution statistics of passed executions and failed executions. They assess fault suspiciousness individual program entities rank statements descending order their scores to help identify faults programs. However, many such focus on assessing but ignore propagation infected states among them. In this paper, we use edge profiles represent executions, contrast them model how each basic block...

Regression testing assures the quality of modified service-oriented business applications against unintended changes. However, a typical regression test suite is large in size. Earlier execution those cases that may detect failures attractive. Many existing prioritization techniques order according to their respective coverage program statements previous version application. On other hand, industrial are typically written orchestration languages such as WS-BPEL and integrated with workflow...

Background. Slice-based cohesion metrics leverage program slices with respect to the output variables of a module quantify strength functional relatedness elements within module. Although slice-based have been proposed for many years, few empirical studies conducted examine their actual usefulness in predicting fault-proneness. Objective. We aim provide an in-depth understanding ability effort-aware post-release fault-proneness prediction, i.e. effectiveness helping practitioners find faults...

What is a cloud application precisely? In this paper, we formulate computing as kind of graph, resource such services or intellectual property access rights an attribute graph node, and the use predicate on edge graph. We also propose to model computation semantically set paths in subgraph that every contains evaluated be true. Finally, present algorithms compose computations family model-based testing criteria support applications.

In continuous integration, a tight integration of test case prioritization techniques and fault-localization may both expose failures faster locate faults more effectively. Statistical use the execution information collected during testing to faults. Executing small fraction prioritized suite reduces cost testing, yet subsequent fault localization suffer. This paper presents first empirical study examine impact on effectiveness localization. Among many interesting results, we find that...

Fault localization commonly relies on both passed and failed runs, but runs are generally susceptible to coincidental correctness modern software automatically produces a huge number of bug reports runs. FOnly is an effective new technique that only locate faults statistically.

SQL injection (SQLi) is one of the chief threats to security database-driven Web applications. It can cause serious issues such as authentication bypassing, privacy leakage, and arbitrary code execution. Dynamic testing techniques are used in SQLi vulnerability discovery, which de-facto approach maintain a collection elaborately designed user inputs (aka. attack payloads) based on it compose malicious queries Such effective reveal before an application released, thus reducing cost manual...

Many composite workflow services utilize non-imperative XML technologies such as WSDL, XPath, schema, and messages. Regression testing should assure the against regression faults that appear in both workflows these artifacts. In this paper, we propose a refinement-oriented level-exploration strategy multilevel coverage model captures progressively of different types artifacts by test cases. We show using them, case prioritization techniques initialized on top existing greedy-based form...

An oracle on software testing is a mechanism for checking whether the system under test has behaved correctly any executions. In some situations, oracles are unavailable or too expensive to apply. This known as problem. It crucial develop techniques address it, and metamorphic (MT) was one of such proposals. paper conducts controlled experiment investigate cost effectiveness using MT by 38 testers three open-source programs. The fault detection capability time compared with popular assertion...

In a long running system, software tends to encounter performance degradation and increasing failure rate during execution, which is called aging. The bugs contributing the phenomenon of aging are defined as Aging Related Bugs (ARBs). Lots manpower economic costs will be saved if ARBs can found in testing phase. However, due low presence probability reproducing difficulty ARBs, it usually hard predict within project. this paper, we study whether how located through cross-project prediction....

PDF HTML阅读 XML下载 导出引用 引用提醒 蜕变测试和断言检查的比较与实验研究 DOI: 作者: 作者单位: 作者简介: 通讯作者: 中图分类号: 基金项目: Supported by the grants of Research Grants Council Hong Kong under Grant Nos.111107, 717308 (香港研究资助局); Australian No.DP0984760 (澳大利亚研究理事会) Experimental Study to Compare Use Metamorphic Testing and Assertion Checking Author: Affiliation: Fund Project: 摘要 | 图/表 访问统计 参考文献 相似文献 引证文献 资源附件 文章评论...

Statistical fault localization techniques analyze the dynamic program information provided by executing a large number of test cases to predict positions in faulty programs. Related studies show that extent imbalance between passed and failed may reduce effectiveness such techniques, while can frequently be less than practice. In this study, we propose strategy generate balanced suite cloning for suitable times catch up with cases. We further give an analysis carrying out two representative...

Existing fault localization techniques combine various program features and similarity coefficients with the aim of precisely assessing similarities among dynamic spectra these to predict locations faults. Many such estimate probability a particular feature causing observed failures. They ignore noise introduced by other on same set executions that may lead In this paper, we propose both use chains key basic blocks as an innovative coefficient has reduction effect. We have implemented our...