[jira] (SUREFIRE-749) Parallel methods should run in separate classloaders

["Gili (JIRA)" <ji...@codehaus.org>]

    [ https://jira.codehaus.org/browse/SUREFIRE-749?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=352261#comment-352261 ] 

Gili commented on SUREFIRE-749:
-------------------------------

@Tibor,

I don't think asking the user to learn an entire new framework is a solution to this problem. I understand that there are too many open issues for Surefire and I sympathize and if there is enough demand for this issue then I think it is worth proceeding.

You might want to take a look at http://stackoverflow.com/a/9192126/14731 because it shows that (1) there is some level of demand for this issue and (2) there is a possible solution for JUnit which you could integrate into Surefire. For TestNG, see https://groups.google.com/forum/#!topic/testng-users/EcpY_ii-Qwc

> Parallel methods should run in separate classloaders
> ----------------------------------------------------
>
>                 Key: SUREFIRE-749
>                 URL: https://jira.codehaus.org/browse/SUREFIRE-749
>             Project: Maven Surefire
>          Issue Type: New Feature
>          Components: Junit 4.7+ (parallel) support
>    Affects Versions: 2.8.1
>            Reporter: Gili
>
> When running in parallel-method or parallel-both mode, each @Test should run in its own ClassLoader. I'm running into a lot of problems involving the use of static variables in 3rd-party libraries. Here are two examples:
> 1. slf4j: http://bugzilla.slf4j.org/show_bug.cgi?id=176
> 2. guice: http://code.google.com/p/google-guice/issues/detail?id=635
> I believe running in isolated ClassLoaders would fix both problems and it makes a lot of sense from a test isolation point of view so we should do it anyway.
> I believe Surefire's forkMode is defined in terms of isolated JVMs instead of ClassLoaders. Furthermore, it only seems to support per-Class isolation instead of per-@Test isolation.



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