RFR(XS): 8144536: Clean up Unified Logging test directory

[David Holmes]

Hi Rachel,

On 3/12/2015 6:45 AM, Rachel Protacio wrote:
> Hi,
>
> I have a short cleanup of the test/runtime/logging directory,
> consolidating two options' tests into one file each. Also improved the
> @run directives as per the recent emails on the topic.

Test consolidation seems fine.

What is the story with the use of "driver"? IIRC it means that none of 
the VM args supplied to the jtreg invocation are passed through - right? 
Which suggests to me that we may not be testing the logging adequately - 
for example if the default VM is server and we never pass through 
-client, and there are log statements specific to client code paths (or 
a specific gc or something else controlled by a VM option) then we never 
test them. May not be applicable for safepoint logging or VMOperation 
logging, but it means we need to carefully consider when "driver" make 
sense to be used.

Thanks,
David

> Open webrev: http://cr.openjdk.java.net/~rprotacio/8144536/
> Bug: https://bugs.openjdk.java.net/browse/JDK-8144536
> Testing: The tests still succeed with jtreg.
>
> Thank you!
> Rachel