Re: [EXTERNAL]Re: [PULL 5/5] tests/acceptance: Count multiple Tux logos displayed on framebuffer

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

Hi Cleber,

 On Tue, Mar 3, 2020 at 12:40 AM Philippe Mathieu-Daudé
<philmd@redhat.com> wrote:
> On 3/2/20 9:58 PM, Aleksandar Markovic wrote:
> >> From: Peter Maydell <peter.maydell@linaro.org>
> >> Sent: Monday, March 2, 2020 9:26 PM
> >> To: Aleksandar Markovic
> >> Cc: QEMU Developers; Aleksandar Markovic; Philippe Mathieu-Daudé
> >> Subject: [EXTERNAL]Re: [PULL 5/5] tests/acceptance: Count multiple Tux logos displayed on framebuffer
> >>
> >> On Thu, 27 Feb 2020 at 13:28, Aleksandar Markovic
> >> <aleksandar.markovic@rt-rk.com> wrote:
> >>>
> >>> From: Philippe Mathieu-Daudé <f4bug@amsat.org>
> >>>
> >>> Add a test that verifies that each core properly displays the Tux
> >>> logo on the framebuffer device.
> >>>
> >>> We simply follow the OpenCV "Template Matching with Multiple Objects"
> >>> tutorial, replacing Lionel Messi by Tux:
> >>> https://docs.opencv.org/4.2.0/d4/dc6/tutorial_py_template_matching.html
> >>
> >> Hi -- this doesn't seem to work on my system:
> >>
> >
> > Thank you for bringing this to our attention.
> >
> > It looks like an honest mistake to me. Too bad
> > none of us tested the case of environment like
> > yours, even though it looked reasonable to test it.
>
> I'm sorry I missed that, I'm pretty sure I tested it as we noticed this
> "bug" in Avocado more than 1 year ago already (bug = class decorator not
> working).

I see in commit 2fe6f4d9ba you moved the @skip decorators to the setUp() method.
Is this a kind of kludge to not use it on all the test_*() methods?
(since we can not use it on an AvocadoTest class)

> I suppose I forgot to test that on Travis-CI and all my
> systems have opencv2 installed.
>
> >
> > Philippe, Peter's solution looks good to me. What
> > do you think?
>
> Yes this is correct. Alex suggested it earlier and I resend his patch
> fixed which is exactly the diff Peter pasted (I am just noticing it now):
> https://lists.gnu.org/archive/html/qemu-devel/2020-03/msg00389.html
>
> >
> > Peter, would you like me to submit a patch with your
> > proposal, authored by you, and than soon send it as
> > a part of a small pull request?
> >
> > Thanks again,
> > Aleksandar
> >
> >>   (38/74) tests/acceptance/machine_arm_integratorcp.py:IntegratorMachine.test_integratorcp_console:
> >> SKIP: untrusted code
> >>   (39/74) tests/acceptance/machine_arm_integratorcp.py:IntegratorMachine.test_framebuffer_tux_logo:
> >> SKIP: Python NumPy not installed
> >>   (40/74) tests/acceptance/machine_arm_n8x0.py:N8x0Machine.test_n800:
> >> SKIP: untrusted code
> >>   (41/74) tests/acceptance/machine_arm_n8x0.py:N8x0Machine.test_n810:
> >> SKIP: untrusted code
> >>   (42/74) tests/acceptance/machine_m68k_nextcube.py:NextCubeMachine.test_bootrom_framebuffer_size:
> >> PASS (3.47 s)
> >>   (43/74) tests/acceptance/machine_m68k_nextcube.py:NextCubeMachine.test_bootrom_framebuffer_ocr_with_tesseract_v3:
> >> SKIP: tesseract v3 OCR tool not available
> >>   (44/74) tests/acceptance/machine_m68k_nextcube.py:NextCubeMachine.test_bootrom_framebuffer_ocr_with_tesseract_v4:
> >> SKIP: tesseract v4 OCR tool not available
> >>   (45/74) tests/acceptance/machine_mips_malta.py:MaltaMachineFramebuffer.test_mips_malta_i6400_framebuffer_logo_1core:
> >> ERROR: name 'cv2' is not defined (5.43 s)
> >>
> >> It looks like the @skipUnless directive on the class didn't
> >> have any effect. Moving it to the individual test functions seems
> >> to cause them to be skipped as intended (as the integratorcp
> >> framebuffer test is):
> >>
> >> diff --git a/tests/acceptance/machine_mips_malta.py
> >> b/tests/acceptance/machine_mips_malta.py
> >> index 92b4f28a112..98463f77573 100644
> >> --- a/tests/acceptance/machine_mips_malta.py
> >> +++ b/tests/acceptance/machine_mips_malta.py
> >> @@ -30,8 +30,6 @@ except ImportError:
> >>       CV2_AVAILABLE = False
> >>
> >>
> >> -@skipUnless(NUMPY_AVAILABLE, 'Python NumPy not installed')
> >> -@skipUnless(CV2_AVAILABLE, 'Python OpenCV not installed')
> >>   class MaltaMachineFramebuffer(Test):
> >>
> >>       timeout = 30
> >> @@ -91,6 +89,8 @@ class MaltaMachineFramebuffer(Test):
> >>               cv2.imwrite(debug_png, screendump_bgr)
> >>           self.assertGreaterEqual(tuxlogo_count, cpu_cores_count)
> >>
> >> +    @skipUnless(NUMPY_AVAILABLE, 'Python NumPy not installed')
> >> +    @skipUnless(CV2_AVAILABLE, 'Python OpenCV not installed')
> >>       def test_mips_malta_i6400_framebuffer_logo_1core(self):
> >>           """
> >>           :avocado: tags=arch:mips64el
> >> @@ -99,6 +99,8 @@ class MaltaMachineFramebuffer(Test):
> >>           """
> >>           self.do_test_i6400_framebuffer_logo(1)
> >>
> >> +    @skipUnless(NUMPY_AVAILABLE, 'Python NumPy not installed')
> >> +    @skipUnless(CV2_AVAILABLE, 'Python OpenCV not installed')
> >>       def test_mips_malta_i6400_framebuffer_logo_7cores(self):
> >>           """
> >>           :avocado: tags=arch:mips64el
> >> @@ -108,6 +110,8 @@ class MaltaMachineFramebuffer(Test):
> >>           """
> >>           self.do_test_i6400_framebuffer_logo(7)
> >>
> >> +    @skipUnless(NUMPY_AVAILABLE, 'Python NumPy not installed')
> >> +    @skipUnless(CV2_AVAILABLE, 'Python OpenCV not installed')
> >>       def test_mips_malta_i6400_framebuffer_logo_8cores(self):
> >>           """
> >>           :avocado: tags=arch:mips64el
> >>
> >> thanks
> >> -- PMM
> >
> >