Ppt slice based testing powerpoint presentation, free download. Software testing slice based testing definition and examples. The change based testing slice ships with the change based testing pie chart widget, which allows you to view the changebased testing summary totals, such as the total number of passed, failed, incomplete, and retest test cases. This principle is based on variations of apparent density of coffee throughout drying courses.
Slice based testing a slice sv,n of program p on variable v, or set of variables, at statement n yields the portions of the program that contributed to the value of v just before statement n is executed. No matter how much effort is spent on testing a program,1 it appears to be a fact of life that. Thus, there is a need for techniques that can simplify and reduce models so that they are easier to comprehend and analyze. Each year, the slice office publishes community connections, a magazinestyle newsletter detailing the events and programs we have been a part of during the previous year. Slice based testing computer programming areas of computer. These tests should be executed as often as possible throughout the software development life cycle. Slice profiles can be used, along with slice based metrics, during the maintenance phase. Given a program p, and a program graph gp in which statements and statement fragments are numbered, and a set v of variables in p, the slice on the variable set v at statement fragment n, written sv,n, is the set node numbers of all statement fragments in p prior to n that contribute to the values of variables in v at statement fragment n.
Originally proposed by weiser 88and gallagher 91 in software maintenance useful. The dynamic slice of p with respect to t and v is the set of statementsnodes cfg in p that lie in tracet and did affect. The weight is then converted into moisture content. Scope of test testing aims to check the correctness of the whole program regression testing aims to check modified parts of the program 3. It was originally proposed by weiser and gallagher for the software maintenance.
Mohapatra 1 1 department of computer science and engineering, national institute of technology, rourkela, sundergarh, odisha 769008, india. A dynamic program slice is an executable part of the program whose behavior is identical, for the same program input, to that of the original program with respect to a variables of interest at some execution position. Regression testing starts with a possibly modified specification, a modified program, and an old test plan which requires updating 2. Framework formodel testing, where an executable model state machine is executed or simulated with event sequences as test cases, before starting the actual implemention phase support for testing the system implementation program against the system specification state machine support for automatic generation of test cases for the. Comparison of forward slicing based testing with related testing. Slice based testing of cgi based web applications springerlink. Data flow testing contd start with a program graph next slide 2 forms. Analyze a program by focusing on parts of interest, disregarding uninteresting parts. The change based testing slice calculates changebased testing metrics that can be displayed in multiple forms pie chart, table report, and test explorer. To identify defuse associations that may be affected by a program change, the slicebased approach usescontrol dependenceinformation. Request pdf slice based testing of cgi based web applications we propose a slice based testing technique to generate test paths for web applications. The slice method extracts parts of a string and returns the extracted parts in a new string. This paper discusses different statement deletion based slicing methods, together with algorithms. The program slice is a set of code lines obtained from a binary program.
Examples of applications include debugging, testing, program comprehension, restructuring, downsizing, and parallelization. Slice profiling is a tool which was developed as an aid in determining the cohesion of a software module. Analyze a program by focusing on parts of interest, disregarding uninteresting parts the point of slices is to separate a program into components that have a useful functional meaning. We propose a slice based testing technique to generate test paths for web applications. Csse 6367 software testing homework 5 execution slice. Software testing a craftsmcms approach third edition paul c. Nevertheless, ex vivo assays for personalized treatment based on the tumor tissue slice model are delicate because it is a low throughput assay and methodological developments are challenging.
Theoretically, the weight decreases uniformly day after day as water evaporates from the coffee, and when drying is achieved the weight remains more or less constant. A final regression testing is performed to validate the build. Given a program p, and a program graph gp in which statements and statement fragments are numbered. It has been shown that dynamic slicing is useful for the purpose of debugging, testing and software maintenance.
Community connections 2012 pdf community connections 20 pdf community connections 2015. A craftsmans approach applies the strong mathematics content of previous editions to a coherent treat ment of modelbased testing for both codebased structural and specificationbased. It applies also to a correct cell deployment in every slice based on requirements see fig. Use the start and end parameters to specify the part of the string you want to extract. A slicebased change impact analysis for regression test case prioritization of objectoriented programs s. Moreover, the bvdetecter can extract slices across functions to get more accurate results. Regression testing a black box testing technique that consists of reexecuting those tests that are impacted by the code changes. Program slice testing early data flow testing centred on three faults. If your site determines that you need to adjust your protocols, please make changes before proceeding to phantom testing. These ambiguities might cause failures in the software if not fixed and can easily pass. It is useful for software debugging, software maintenance, program understanding and quantification of functional cohesion. A survey of software fault localization technical report utdcs4509. Sv, n is the set of node numbers of all statements in p prior to n that contribute to the values of variables in v at n. It divides the program into different slices and tests that slice which can majorly affect the entire software.
This course gives an introduction to systematic methods of testing and verification, covering a range of static and dynamic techniques and their use within the development process. It has finer granularity than the entire binary program. A slicebased change impact analysis for regression test case. Consult with your local msd animal health representative for any additional guidelines that may apply to your area. Soc testing using lfsr reseeding, and scanslicebased. The uml statechart diagram slicing that based on the dependency analysis is mainly applied to the field of regression tesing.
Our technique uses slicing criterion for all variables defined and used in the program. Mutation testing is a structural testing technique, which uses the structure of the code to guide the testing process. Moreover, tumor heterogeneity requires advanced analytical tools to faithfully categorize tumor responses to drug treatment, especially in the case of bc. Using slice profiles and metrics during software maintenance. Slice based testing of cgi based web applications request pdf. Based on factors such as qos requirements, traffic load, or type of traffic, the ran architecture should be properly tailored to each slice. Software testing slice based testing definition and.
The first character has the position 0, the second has position 1, and so on. Our web application is based on common gateway interface cgi and. Our web application is based on common gateway interface cgi and we have used perl programming language. Ignore those parts that do not contribute to the functional meaning of interest. This testing is also called as nonexecution technique or verification testing. Some scanners will not allow prescription of 5 mm slices with 5 mm gaps. Figure 1 shows a sagittal localizer with the 11 axial slice locations crossreferenced on it. Test case prioritization focuses on finding a suitable order of execution of the test cases in a test suite to meet some performance goals like detecting faults early. Please be aware that further changes in clinical image spatial resolution may be warranted based on evaluation of phantom images. Changebased random testing with static program slices. Static testing is to improve the quality of software products by finding errors in early stages of the development cycle. Variable defined but never usedreferenced variable used but never defined variable defined twice before use definereference anomalies static analysis. Program slicing is a viable method to restrict the focus of a task to specific subcomponents of a program.
Given a program p, program graph gp and set of variables in p v. Static, dynamic and execution slicebased methods program slicing is a commonly used technique for. Service learning california state university, dominguez. On a very high level, it is the process of rewriting the source code in small ways in order to remove the redundancies in the source code. Uml statechart slicing based on dependency analysis in the. Given a program p, and a program graph gp in which statements and statement fragments are numbered, and a set v of variables in p, the slice on the variable set v at statement fragment n, written sv,n, is the set node numbers of all statement fragments in p prior to n that contribute to the values. Program slicingbased regression testing techniques.
Csse 6367 software testing homework 5 execution slicebased software fault localization total points. Regression testing time should be accounted for in the planning of a new release of a product. Ntl has developed slice as a solution accelerator in the space of intelligent content extraction which is a framework that provides an intelligent approach to content extraction from structureunstructured data from various sources like pdf, word, excel, html, images etc. It gathers all the files in a code base and analyzes the test cases associated with each file.