tests/acceptance: Add test of NeXTcube framebuffer using OCR

Add a test of the NeXTcube framebuffer using the Tesseract OCR
engine on a screenshot of the framebuffer device.

The test is very quick:

  $ avocado --show=app,console run tests/acceptance/machine_m68k_nextcube.py
  JOB ID     : 78844a92424cc495bd068c3874d542d1e20f24bc
  JOB LOG    : /home/phil/avocado/job-results/job-2019-08-13T13.16-78844a9/job.log
   (1/3) tests/acceptance/machine_m68k_nextcube.py:NextCubeMachine.test_bootrom_framebuffer_size: PASS (2.16 s)
   (2/3) tests/acceptance/machine_m68k_nextcube.py:NextCubeMachine.test_bootrom_framebuffer_ocr_with_tesseract_v3: -
  ue r pun Honl'flx ; 5‘ 55‘
  avg ncaaaaa 25 MHZ, memary jag m
  Backplane slat «a
  Ethernet address a a r a r3 2
  Memgry sackets aea canflqured far 16MB Darlly page made stMs but have 16MB page made stMs )nstalled
  Memgry sackets a and 1 canflqured far 16MB Darlly page made stMs but have 16MB page made stMs )nstalled
  [...]
  Yestlnq the rpu, 5::
  system test raneg Errar egge 51
  Egg: cammand
  Default pggc devlce nut fauna
  NEXY>I
  PASS (2.64 s)
   (3/3) tests/acceptance/machine_m68k_nextcube.py:NextCubeMachine.test_bootrom_framebuffer_ocr_with_tesseract_v4: SKIP: tesseract v4 OCR tool not available
  RESULTS    : PASS 2 | ERROR 0 | FAIL 0 | SKIP 1 | WARN 0 | INTERRUPT 0 | CANCEL 0
  JOB TIME   : 5.35 s

Documentation on how to install tesseract:
  https://github.com/tesseract-ocr/tesseract/wiki#installation

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20190813134921.30602-2-philmd@redhat.com>
Signed-off-by: Thomas Huth <huth@tuxfamily.org>
This commit is contained in:
Philippe Mathieu-Daudé 2019-08-13 15:49:19 +02:00 committed by Thomas Huth
parent 1810b81501
commit ca2e7e463f

View File

@ -0,0 +1,121 @@
# Functional test that boots a VM and run OCR on the framebuffer
#
# Copyright (c) Philippe Mathieu-Daudé <f4bug@amsat.org>
#
# This work is licensed under the terms of the GNU GPL, version 2 or
# later. See the COPYING file in the top-level directory.
import os
import re
import time
import logging
import distutils.spawn
from avocado_qemu import Test
from avocado import skipUnless
from avocado.utils import process
from avocado.utils.path import find_command, CmdNotFoundError
PIL_AVAILABLE = True
try:
from PIL import Image
except ImportError:
PIL_AVAILABLE = False
def tesseract_available(expected_version):
try:
find_command('tesseract')
except CmdNotFoundError:
return False
res = process.run('tesseract --version')
try:
version = res.stdout_text.split()[1]
except IndexError:
version = res.stderr_text.split()[1]
return int(version.split('.')[0]) == expected_version
match = re.match(r'tesseract\s(\d)', res)
if match is None:
return False
# now this is guaranteed to be a digit
return int(match.groups()[0]) == expected_version
class NextCubeMachine(Test):
timeout = 15
def check_bootrom_framebuffer(self, screenshot_path):
rom_url = ('http://www.nextcomputers.org/NeXTfiles/Software/ROM_Files/'
'68040_Non-Turbo_Chipset/Rev_2.5_v66.BIN')
rom_hash = 'b3534796abae238a0111299fc406a9349f7fee24'
rom_path = self.fetch_asset(rom_url, asset_hash=rom_hash)
self.vm.set_machine('next-cube')
self.vm.add_args('-bios', rom_path)
self.vm.launch()
self.log.info('VM launched, waiting for display')
# TODO: Use avocado.utils.wait.wait_for to catch the
# 'displaysurface_create 1120x832' trace-event.
time.sleep(2)
self.vm.command('human-monitor-command',
command_line='screendump %s' % screenshot_path)
@skipUnless(PIL_AVAILABLE, 'Python PIL not installed')
def test_bootrom_framebuffer_size(self):
"""
:avocado: tags=arch:m68k
:avocado: tags=machine:next_cube
:avocado: tags=device:framebuffer
"""
screenshot_path = os.path.join(self.workdir, "dump.png")
self.check_bootrom_framebuffer(screenshot_path)
width, height = Image.open(screenshot_path).size
self.assertEqual(width, 1120)
self.assertEqual(height, 832)
@skipUnless(tesseract_available(3), 'tesseract v3 OCR tool not available')
def test_bootrom_framebuffer_ocr_with_tesseract_v3(self):
"""
:avocado: tags=arch:m68k
:avocado: tags=machine:next_cube
:avocado: tags=device:framebuffer
"""
screenshot_path = os.path.join(self.workdir, "dump.png")
self.check_bootrom_framebuffer(screenshot_path)
console_logger = logging.getLogger('console')
text = process.run("tesseract %s stdout" % screenshot_path).stdout_text
for line in text.split('\n'):
if len(line):
console_logger.debug(line)
self.assertIn('Backplane', text)
self.assertIn('Ethernet address', text)
# Tesseract 4 adds a new OCR engine based on LSTM neural networks. The
# new version is faster and more accurate than version 3. The drawback is
# that it is still alpha-level software.
@skipUnless(tesseract_available(4), 'tesseract v4 OCR tool not available')
def test_bootrom_framebuffer_ocr_with_tesseract_v4(self):
"""
:avocado: tags=arch:m68k
:avocado: tags=machine:next_cube
:avocado: tags=device:framebuffer
"""
screenshot_path = os.path.join(self.workdir, "dump.png")
self.check_bootrom_framebuffer(screenshot_path)
console_logger = logging.getLogger('console')
proc = process.run("tesseract --oem 1 %s stdout" % screenshot_path)
text = proc.stdout_text
for line in text.split('\n'):
if len(line):
console_logger.debug(line)
self.assertIn('Testing the FPU, SCC', text)
self.assertIn('System test failed. Error code 51', text)
self.assertIn('Boot command', text)
self.assertIn('Next>', text)