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module to replace random number generation with non-random number generation

The Test::MockRandom module replaces random number generation with non-random number generation.

This perhaps ridiculous-seeming module was created to test routines that manipulate random numbers by providing a known output from rand. Given a list of seeds with srand, it will return each in turn. After seeded random numbers are exhausted, it will always return 0. Seed numbers must be of a form that meets the expected output from rand as called with no arguments -- i.e. they must be between 0 (inclusive) and 1 (exclusive). In order to facilitate generating and testing a nearly-one number, this module exports the function oneish, which returns a number just fractionally less than one.

Depending on how this module is called with use, it will export rand to a specified package (e.g. a class being tested) effectively overriding and intercepting calls in that package to the built-in rand. It can also override rand in the current package or even globally. In all of these cases, it also exports srand and oneish to the current package in order to control the output of rand.

Package version:1.00-1


Test::MockRandom(User Contributed Perl DocumentTest::MockRandom(3pm)

       Test::MockRandom -  Replaces random number generation with
       non-random number generation

       This documentation describes version 1.00.

          # intercept rand in another package
          use Test::MockRandom 'Some::Other::Package';
          use Some::Other::Package; # exports sub f


libtest-mockrandom-perl (1.00-1) unstable; urgency=low

  * Initial Release (Closes: #531200).

 -- Salvatore Bonaccorso <>  Sun, 31 May 2009 16:45:16 +0200


Revision history for Perl module Test::MockRandom

1.00 Mon Dec 17 11:39:59 EST 2007

    - added prototype to rand() function to match built-in
      (RT#30471; patch by INFINOID)
    - removed Exporter as superclass (unused)

    - changed to the Apache License, version 2.0; (it's clearer, relicensable,
      and is explicit about contributions)

    - updated Build/documentation system and


TODO list for Perl module Test::MockRandom

- Write a matching "unimport"?


Maintainer: David A. Golden <dagolden@cpan.or

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