Debugging CI test failures

[Thomas Friedrichsmeier]

On Thu, 16 Jun 2022 22:26:31 +1200
Ben Cooksley <bcooksley at kde.org> wrote:

> On Thu, Jun 16, 2022 at 8:08 AM Thomas Friedrichsmeier <
> thomas.friedrichsmeier at kdemail.net> wrote:  
> 
> > On Wed, 15 Jun 2022 17:51:52 +0200
> > Thomas Friedrichsmeier <thomas.friedrichsmeier at kdemail.net> wrote:
> > [...]  
> > > I suppose, I could try seting up some dummy test binaries, linking
> > > against the various libraries, hoping to narrow down the problem
> > > that way?  
> >
> > Ok, that finally led to something. I have no idea, why this is
> > happening, or how to fix it, but I have isolated QWebEngine as the
> > troublemaker.
> >
> > relevant portion of CMakeLists.txt:
> >
> > add_executable(linktest linktest.cpp)
> > target_link_libraries(linktest PRIVATE Qt5::Test
> > Qt5::WebEngineWidgets) add_test(NAME rkward-linktest COMMAND
> > linktest) ecm_mark_as_test(linktest)
> >
> > relevant code:
> >
> > https://invent.kde.org/education/rkward/-/blob/work/diagnose_testfailure/rkward/autotests/linktest.cpp
> >
> > result:
> > https://invent.kde.org/education/rkward/-/jobs/359945
> >
> > (2/2 Test #2: rkward-linktest ..................Exit code
> > 0xc0000135)
> >
> > Note that "new QWebEngineView();" does not even have to be called.
> > It's enough that the line of code is present, directly or
> > indirectly. In contrast - for instance - creating a
> > KTextEditor::Document/View does not cause any trouble.
> >  
> 
> Interesting. When you build RKward on your local system do you use the
> Craft cache or does your system build everything itself?
> I wonder if the Craft binaries for WebEngineWidgets are broken - and
> MSVC doesn't check down the full chain when it does it's linking.

Well, my local craft builds are MinGW-based, and so are using QWebKit,
instead. So that does not really compare. No problem, there, however,
despite using the cache.

I did just check that the latest MSVC build from binary-factory is
working. Of course that doesn't contain the test, but rkward itself
works fine.

I'm currently trying to get my MSVC craft root back to life, but that
seems to take another while...

Regards
Thomas
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