RFR(XXS) : 8177709 : Convert TestVirtualSpace_test to GTest

[Igor Ignatyev]

Hi Thomas, JC

I tried to use a test fixture and the code became very clumsy, so I went w/ a simple RAII. 
http://cr.openjdk.java.net/~iignatyev//8177709/webrev.0-1/index.html <http://cr.openjdk.java.net/~iignatyev//8177709/webrev.0-1/index.html>

I've also noticed that we have same problem in TestReservedSpace_test tests -- http://cr.openjdk.java.net/~iignatyev//8171097/webrev.0-1/index.html <http://cr.openjdk.java.net/~iignatyev//8171097/webrev.0-1/index.html>

Thanks,
-- Igor

> On Oct 17, 2018, at 12:04 PM, Thomas Stüfe <thomas.stuefe at gmail.com> wrote:
> 
> 
> 
> On Wed 17. Oct 2018 at 21:00, Igor Ignatyev <igor.ignatyev at oracle.com <mailto:igor.ignatyev at oracle.com>> wrote:
> EXPECT would just mark a test as failed and allow the method to continue, so rs.release() will be called. 
> 
> Oh, okay. Thanks for clarifying.
> 
> 
> 
> test fixture will basically do the same as an RAII object, but it will be a bit more obvious as test preparation and cleaning steps will be separated from test actions, so I'll go w/ setUp/tearDown.
> 
> Okay fine by me.
> 
> ..thomas
> 
> 
> 
> -- Igor
> 
> > On Oct 17, 2018, at 11:53 AM, Thomas Stüfe <thomas.stuefe at gmail.com <mailto:thomas.stuefe at gmail.com>> wrote:
> > 
> > On Wed, Oct 17, 2018 at 8:29 PM Igor Ignatyev <igor.ignatyev at oracle.com <mailto:igor.ignatyev at oracle.com>> wrote:
> >> 
> >> Hi Thomas,
> >> 
> >> 1st of all, thanks for looking at it, appreciate that.
> >> 
> >> it seems we can. there are two ways I can fix that either replace ASSERT by EXCEPT or introduce a text fixture w/ SetUp and TearDown. which do you prefer?
> >> 
> >> -- Igor
> > 
> > Slight preference for SetUp/TearDown (EXCEPT would quit the testing
> > altogether, wont it?).
> > 
> > Lazy me would have just used an RAII object like this:
> > 
> > struct Cleaner {
> >  ReservedSpace* rs;
> >  ~Cleaner() { rs.release(); }
> > };
> > 
> > But I leave it up to you.
> > 
> > ... Thomas
> > 
> >> 
> >>> On Oct 17, 2018, at 11:16 AM, Thomas Stüfe <thomas.stuefe at gmail.com <mailto:thomas.stuefe at gmail.com>> wrote:
> >>> 
> >>> Hi Igor,
> >>> 
> >>> test_virtual_space_actual_committed_space() and
> >>> actual_committed_space_one_large_page():
> >>> 
> >>> Won't we leak the reserved space now when we run into an ASSERT and
> >>> then continue with the next gtests?
> >>> 
> >>> Cheers, Thomas
> >>> 
> >>> On Wed, Oct 17, 2018 at 7:55 PM Igor Ignatyev <igor.ignatyev at oracle.com <mailto:igor.ignatyev at oracle.com>> wrote:
> >>>> 
> >>>> http://cr.openjdk.java.net/~iignatyev//8177709/webrev.00/index.html <http://cr.openjdk.java.net/~iignatyev//8177709/webrev.00/index.html>
> >>>>> 141 lines changed: 140 ins; 1 del; 0 mod;
> >>>> 
> >>>> Hi all,
> >>>> 
> >>>> could you please review this small (and hopefully trivial) patch which converts internal TestVirtualSpace_test to gtest?
> >>>> again, the old test is still used by WhiteBox::runMemoryUnitTests, the old code hasn't been removed. it will be removed later when all 4 tests used by runMemoryUnitTests are converted.
> >>>> 
> >>>> for the sake of reviewer, http://hg.openjdk.java.net/jdk/jdk/file/2e928420389d/src/hotspot/share/memory/virtualspace.cpp#l1261 <http://hg.openjdk.java.net/jdk/jdk/file/2e928420389d/src/hotspot/share/memory/virtualspace.cpp#l1261> is the old version.
> >>>> 
> >>>> webrev: http://cr.openjdk.java.net/~iignatyev//8177709/webrev.00/index.html <http://cr.openjdk.java.net/~iignatyev//8177709/webrev.00/index.html>
> >>>> JBS: https://bugs.openjdk.java.net/browse/JDK-8177709 <https://bugs.openjdk.java.net/browse/JDK-8177709>
> >>>> testing:
> >>>> - converted tests on linux-x64, windows-x64, macosx-x64, solaris-sparcv9 in product and fastdebug variants
> >>>> - build w/ precompiled-headers enabled and disabled
> >>>> 
> >>>> Thanks,
> >>>> -- Igor
> >> 
> 

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