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https://issues.apache.org/jira/browse/MAHOUT-743?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13055539#comment-13055539
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Hudson commented on MAHOUT-743:
-------------------------------
Integrated in Mahout-Quality #908 (See
[https://builds.apache.org/job/Mahout-Quality/908/])
MAHOUT-743 use fixed seed in tests
srowen : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1140097
Files :
* /mahout/trunk/math/src/test/java/org/apache/mahout/common/RandomUtilsTest.java
* /mahout/trunk/math/src/main/java/org/apache/mahout/common/RandomWrapper.java
> Allow use of random seeds during unit tests
> -------------------------------------------
>
> Key: MAHOUT-743
> URL: https://issues.apache.org/jira/browse/MAHOUT-743
> Project: Mahout
> Issue Type: Improvement
> Reporter: Lance Norskog
> Assignee: Sean Owen
> Fix For: 0.6
>
> Attachments: MAHOUT-743.patch, RandomWrapper.patch
>
>
> The RandomUtils package has a trick for running unit tests repeatably. All
> random generators created with RandomUtils.getRandom() are started with seed
> 0. Unfortunately, all random generators started with
> RandomUtils.getRandom(seed) effectively run from a seed of 0. Thus, code
> which deliberately creates Random objects with seeds does not work correctly
> under unit tests.
> The problem is that the logic in RandomWrapper tests for unit test mode and
> settable seed mode in the wrong order.
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