Overview

The Pairwise Independent Combinatorial Testing tool (PICT) can help you efficiently design test cases and test configurations for software systems. With PICT, you can generate tests that are more effective than manually generated tests and create them in a fraction of the time required by hands-on test case design. PICT generates a compact set of parameter value choices that represent the test cases you should use to get comprehensive combinatorial coverage of your parameters.51Testing软件测试网)Q']-]#b`x/[

Using PICT to Combine Test Case Parameters

PICT runs as a command line tool. You prepare a model file detailing the parameters of the interface (or set of configurations, or data) you want to test. PICT generates a compact set of parameter value choices that represent the test cases you should use to get comprehensive combinatorial coverage of your parameters.

For instance, if you wish to create a test suite for partition and volume creation, the domain can be described by the following parameters:Type,Size,File system,Format method,Cluster size, andCompression. Each parameter has a limited number of possible values, each of which is determined by its nature (for example,Compressioncan only beOnorOff) or as an equivalence partition (such asSize).51Testing软件测试网e&V(m,j4I7Jg:V

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Running PICT

PICTisa command-line tool that accepts a plain-text model file as an input and outputs a set of test cases.51Testing软件测试网2] C
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The PICT installer adds PICT to the path, so you can run it from any folder on your system. To see the PICT output for the example in theprevious section, create themodel filewith any plain text editor, such as Windows® Notepad®, and run PICT with this command:51Testing软件测试网!Q7QA W[ EJ#V{5BN

To create a tab-delimited output file, use command line output redirection.

You can use Microsoft® Excel® to sort or filterPICT’soutput. You either import the output file into Excel, or use an .xlsextension when you create the file and open it directly in Excel.