Hi,
I have had a first shot at creating temporary folders with names including the
current PID and the current Thread Name in order
to allow to run tests in parallel. I did not have the time today to do the work
for all the Ant test cases but it seems achievable to finish that work.
On Mar 24, 2014, at 1:08 AM, Stefan Bodewig <bode...@apache.org> wrote:
> On 2014-03-23, Antoine Levy Lambert wrote:
>
>> Some of our test cases do not support parallelism because they are creating
>> and dropping temporary directories and files which have the same names.
>
> On first glance there also may be a race condition for the test that
> expects certain build events. See the Jenkins test error on JDK8 - and
> the nightly, I suspect, but Jenkins is currently down.
this error happened once, I do not know exactly what caused it, the next build
was green.
>
>> I was thinking of adding somewhere in the Ant codebase a utility class
>> or method to get the PID of the currently running process and add the
>> PID somewhere in the name of temporary folders created for tests.
>
> Yes, unique temporary directory names is the best you can do. I haven't
> looked at the code, yet. From the name of the attribute I would have
> expected multiple threads inside the same VM rather than multiple
> processes. In the case of the same VM you'd certainly use the Thread-Id
> or name instead.
This JUnit multi-thread implementation is currently working if you choose
fork=true and forkMode=perTest.
>
> You may want to move test directory creation/deletion into BuildFileTest
> similar to what we do with antunit-base.
I have added the setting of properties ant.pid and ant.threadname in
BuildFileTest, these properties are then used
to give a name to a temporary folder ${output} in a new base build file similar
to what exists for the AntUnit tests.
>
> Stefan
>
Thanks,
Antoine
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