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Allpairs

Published: May 23, 2006 by James Bach 3 Comments

Allpairs

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  • Download 46152
  • File Size 503.42 KB
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  • Create Date 23 May 2006
  • Last Updated 7 June 2023
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Let's say you must test something that involves a lot of different variables. Configuration testing is like that: different printers, different print options, different documents. Who knows what combination will fail? But you can't try all combinations of all variables together, because that would be too many tests. So instead, you could create tests that pair each value of each of the variables with each value of each other variable at least once. Allpairs is a tool I wrote that will find a reasonably small set of test cases to satisfy that coverage standard. For instance, to try all combinations of 10 variables with ten values each would require 10,000,000,000 test cases. Allpairs only requires 177 cases. Allpairs is a command-line executable based on a Perl script. Source is included.

See also Pairwise Testing: A Best Practice That Isn't

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Reader Interactions

Comments

  1. Bryan Perez says

    1 June 2021 at 9:21 pm

    Thank you so much, I love this tool 🙂

    Reply
  2. Jörg Gellien says

    20 June 2023 at 2:07 am

    Still rereading Lessons learned in Software testing once in a while. Your observations and advice seems not to age. Thanks for that inspiring book and the tools you provided.

    Reply
  3. kaushal says

    24 April 2025 at 12:50 am

    Hello Sir, I am not able to user this tool could you please guide me

    [James’ Reply: The best thing to do is send me an email or contact me on LinkedIn.com]

    Reply

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