[
https://issues.apache.org/jira/browse/MAHOUT-743?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Lance Norskog updated MAHOUT-743:
---------------------------------
Attachment: MAHOUT-743.patch
Add unit test:
getRandom() always equals getRandom()
getRandom() never equals getRandom(0)
getRandom(0) never equals getRandom(1)
> 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
> 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.
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira
