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From "Kristian Waagan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-5475) Formalize use of old Derby distributions in tests
Date Thu, 21 Jun 2012 11:31:42 GMT

    [ https://issues.apache.org/jira/browse/DERBY-5475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13398355#comment-13398355
] 

Kristian Waagan commented on DERBY-5475:
----------------------------------------

Committed patch 4a to trunk with revision 1352498.
                
> Formalize use of old Derby distributions in tests
> -------------------------------------------------
>
>                 Key: DERBY-5475
>                 URL: https://issues.apache.org/jira/browse/DERBY-5475
>             Project: Derby
>          Issue Type: Improvement
>          Components: Test
>    Affects Versions: 10.9.1.0
>            Reporter: Kristian Waagan
>            Assignee: Kristian Waagan
>            Priority: Minor
>         Attachments: derby-5475-1a-DerbyVersion.diff, derby-5475-1b-DerbyVersion.diff,
derby-5475-2a-rename_and_cleanup.diff, derby-5475-2a-rename_and_cleanup.stat, derby-5475-3a-repository.diff,
derby-5475-4a-less_exceptions_and_expose.diff
>
>
> Some types of tests need old Derby distributions to perform the required actions. Currently
this includes the upgrade test and the compatibility test.
> Instead of each test dealing with this in their own way, there should be support for
accessing old Derby distributions in the test framework.
> I propose to add a Derby distribution repository in the test framework, with the following
guidelines and changes:
>  o keep it as simple as possible, which suggests it is the users responsibility to keep
the repository updated
>  o compatibility with the existing derbyTesting.oldReleasePath property
>  o make the tests requiring old distributions fail if there are no distributions available
>  o establish a default location where the test framework will look for old distributions
if derbyTesting.oldReleasePath is unspecified
>  o the repository should not incur any costs when not used by the test(s) being run
> In favor of simplicity the repository will not download releases itself. The user has
to keep the repository contents up-to-date, which is as simple as running 'svn up' each time
a new Derby release is published. It is unclear if, and what, the repository and/or relevant
tests should do if the repository is outdated. It seems useful to allow the user to make available
only a subset of the distributions, but maybe printing a warning is helpful to remind developers
that their repository is stale.
> Another related issue, which will only be relevant some time in the future, is whether
a test framework of version X should make available distributions of version X+n. Currently
I'm leaning towards not doing that, but haven't really looked into it.
> See also thread on derby-dev: http://db.markmail.org/thread/44uyusa726cwjuk2

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