screenshot_validation job will fail with sample picture missing error

[Po-Hsu Lin]

I found the recent SRU all failed with the following error in the graphics/screenshot_opencv_validation test:

Traceback (most recent call last):
  File "/tmp/nest-jj20h32u.44a1f4790864535582248a11115ef194e34542e6a6feee296492ae12f0e374da/screenshot_validation", line 89, in <module>
    if not imghdr.what(args.input):
  File "/usr/lib/python2.7/imghdr.py", line 14, in what
    f = open(file, 'rb')
IOError: [Errno 2] No such file or directory: '/images/logo_Ubuntu_stacked_black.png'

This png file could be found in the /usr/share/plainbox-provider-checkbox/data/images directory.

Job command:
 screenshot_validation \
    ${PLAINBOX_PROVIDER_DATA}/images/logo_Ubuntu_stacked_black.png \
    --device=${EXTERNAL_WEBCAM_DEVICE:-/dev/external_webcam} \
    -o ${PLAINBOX_SESSION_SHARE}/screenshot_opencv_validation.jpg

It seem that the ${PLAINBOX_PROVIDER_DATA} variable is missing.

[Po-Hsu Lin (cypressyew)]

Another job with "$PLAINBOX_PROVIDER_DATA" variable works fine, the suspend/bluetooth_obex_send_before_suspend job.

INFO: =================================[ Send test ]==================================
INFO: Using JPEG_Color_Image_Ubuntu.jpg as a test file
INFO: Sending /usr/share/plainbox-provider-checkbox/data/images/JPEG_Color_Image_Ubuntu.jpg to 00:02:72:3E:83:D6
INFO: PASS