Re: [PATCH 1/1] tests/acceptance: Count Raspberry Pi logos displayed on framebuffer

[Wainer dos Santos Moschetta <wainersm@redhat.com>]

On 1/31/20 9:24 PM, Philippe Mathieu-Daudé wrote:
> Add a test that verifies that each core properly displays the
> Raspberry Pi logo on the framebuffer device.
>
> We simply follow the OpenCV "Template Matching with Multiple Objects"
> tutorial, replacing Lionel Messi by a raspberrry:
> https://docs.opencv.org/4.2.0/d4/dc6/tutorial_py_template_matching.html
>
> When OpenCV and NumPy are installed, this test can be run using:
>
>    $ avocado --show=app,framebuffer run -t device:bcm2835-fb tests/acceptance/
>    JOB ID     : 9bbbc54c0a6fa180348d0b5305507f76852b4da2
>    JOB LOG    : avocado/job-results/job-2020-01-31T23.48-9bbbc54/job.log
>     (1/1) tests/acceptance/boot_linux_console.py:BootLinuxConsole.test_arm_raspi2_framebuffer_logo:
>    framebuffer: found raspberry at position (x, y) = (0, 0)
>    framebuffer: found raspberry at position (x, y) = (71, 0)
>    framebuffer: found raspberry at position (x, y) = (142, 0)
>    framebuffer: found raspberry at position (x, y) = (213, 0)
>    PASS (11.06 s)
>    RESULTS    : PASS 1 | ERROR 0 | FAIL 0 | SKIP 0 | WARN 0 | INTERRUPT 0 | CANCEL 0
>    JOB TIME   : 11.39 s
>
> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> ---
> The resulting match can be visualised at https://pasteboard.co/ISzNHtx.png
> ---
>   tests/acceptance/boot_linux_console.py | 62 ++++++++++++++++++++++++++
>   1 file changed, 62 insertions(+)
>
> diff --git a/tests/acceptance/boot_linux_console.py b/tests/acceptance/boot_linux_console.py
> index e40b84651b..4e69a83a12 100644
> --- a/tests/acceptance/boot_linux_console.py
> +++ b/tests/acceptance/boot_linux_console.py
> @@ -12,6 +12,7 @@ import os
>   import lzma
>   import gzip
>   import shutil
> +import logging
>   
>   from avocado import skipUnless
>   from avocado_qemu import Test
> @@ -21,6 +22,19 @@ from avocado.utils import process
>   from avocado.utils import archive
>   
>   
> +NUMPY_AVAILABLE = True
> +try:
> +    import numpy as np
> +except ImportError:
> +    NUMPY_AVAILABLE = False
> +
> +CV2_AVAILABLE = True
> +try:
> +    import cv2
> +except ImportError:
> +    CV2_AVAILABLE = False
> +
> +


Those Python packages are only needed by this new test case, and the 
test is likely to be moved to a separate file soon. So I suggest to put 
those availability checks inside the test method, so easing the future 
removal. And use self.cancel() to cancel the test (if the case).


>   class BootLinuxConsole(Test):
>       """
>       Boots a Linux kernel and checks that the console is operational and the
> @@ -360,6 +374,54 @@ class BootLinuxConsole(Test):
>           """
>           self.do_test_arm_raspi2(0)
>   
> +    @skipUnless(NUMPY_AVAILABLE, 'Python NumPy not installed')
> +    @skipUnless(CV2_AVAILABLE, 'Python OpenCV not installed')
> +    def test_arm_raspi2_framebuffer_logo(self):
> +        """
> +        :avocado: tags=arch:arm
> +        :avocado: tags=machine:raspi2
> +        :avocado: tags=device:bcm2835-fb
> +        """
> +        screendump_path = os.path.join(self.workdir, 'screendump.pbm')
> +        rpilogo_url = ('https://github.com/raspberrypi/linux/raw/'
> +                       'raspberrypi-kernel_1.20190517-1/'
> +                       'drivers/video/logo/logo_linux_clut224.ppm')
> +        rpilogo_hash = 'fff3cc20c6030acce0953147f9baac43f44ed6b0'
> +        rpilogo_path = self.fetch_asset(rpilogo_url, asset_hash=rpilogo_hash)
> +        deb_url = ('http://archive.raspberrypi.org/debian/'
> +                   'pool/main/r/raspberrypi-firmware/'
> +                   'raspberrypi-kernel_1.20190215-1_armhf.deb')
> +        deb_hash = 'cd284220b32128c5084037553db3c482426f3972'
> +        deb_path = self.fetch_asset(deb_url, asset_hash=deb_hash)
> +        kernel_path = self.extract_from_deb(deb_path, '/boot/kernel7.img')
> +        dtb_path = self.extract_from_deb(deb_path, '/boot/bcm2709-rpi-2-b.dtb')
> +
> +        self.vm.set_console()
> +        kernel_command_line = (self.KERNEL_COMMON_COMMAND_LINE +
> +                               'earlycon=pl011,0x3f201000 console=ttyAMA0')
> +        self.vm.add_args('-kernel', kernel_path,
> +                         '-dtb', dtb_path,
> +                         '-append', kernel_command_line)
> +        self.vm.launch()
> +        framebuffer_ready = 'Console: switching to colour frame buffer device'
> +        wait_for_console_pattern(self, framebuffer_ready)
> +        self.vm.command('human-monitor-command', command_line='stop')
> +        self.vm.command('human-monitor-command',
> +                        command_line='screendump %s' % screendump_path)
> +        logger = logging.getLogger('framebuffer')
> +
> +        cpu_cores_count = 4


Won't this fail if host cpu cores are less than 4?


Thanks!

- Wainer

> +        match_threshold = 0.95
> +        screendump_bgr = cv2.imread(screendump_path, cv2.IMREAD_COLOR)
> +        rpilogo_bgr = cv2.imread(rpilogo_path, cv2.IMREAD_COLOR)
> +        result = cv2.matchTemplate(screendump_bgr, rpilogo_bgr,
> +                                   cv2.TM_CCOEFF_NORMED)
> +        loc = np.where(result >= match_threshold)
> +        rpilogo_count = 0
> +        for rpilogo_count, pt in enumerate(zip(*loc[::-1]), start=1):
> +            logger.debug('found raspberry at position (x, y) = %s', pt)
> +        self.assertGreaterEqual(rpilogo_count, cpu_cores_count)
> +
>       def test_arm_exynos4210_initrd(self):
>           """
>           :avocado: tags=arch:arm