Use information about blacklisted devices in video_quality_loopback_test

webrtc/examples/androidtests/video_quality_loopback_test.py

 #!/usr/bin/env python
 # Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 """
 This script is the wrapper that starts a loopback call with stubbed video in
 and out. It then analyses the video quality of the output video against the
 reference input video.
 
 It expect to be given the webrtc output build directory as the first argument
 all other arguments are optional.
 
 It assumes you have a Android device plugged in.
 """
 
 import argparse
+import json
 import logging
 import os
 import shutil
 import subprocess
 import sys
 import tempfile
 import time
 
 
 SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
 SRC_DIR = os.path.normpath(os.path.join(SCRIPT_DIR, os.pardir, os.pardir,
                                         os.pardir))
+BAD_DEVICES_JSON = os.path.join(SRC_DIR,
+                                os.environ.get('CHROMIUM_OUT_DIR', 'out'),
+                                'bad_devices.json')
 
 
 class Error(Exception):
   pass
 
 
 class VideoQualityTestError(Error):
   pass
 
 
@@ skipping 58 matching lines @@
   download_tools_script = os.path.join(tools_dir, 'download_tools.py')
   _RunCommand([sys.executable, download_tools_script, toolchain_dir])
 
   testing_tools_dir = os.path.join(SRC_DIR, 'webrtc', 'tools', 'testing')
 
   # Download, extract and build AppRTC.
   setup_apprtc_script = os.path.join(testing_tools_dir, 'setup_apprtc.py')
   _RunCommand([sys.executable, setup_apprtc_script, temp_dir])
 
   # Select an Android device in case multiple are connected
+  try:
+    with open(BAD_DEVICES_JSON) as bad_devices_file:
+      bad_devices = json.load(bad_devices_file)
+  except IOError:
+    if os.environ.get('CHROME_HEADLESS'):
+      logging.warning('Cannot read %r', BAD_DEVICES_JSON)
+    bad_devices = {}
+
   for line in _RunCommandWithOutput([adb_path, 'devices']).splitlines():
     if line.endswith('\tdevice'):
       android_device = line.split('\t')[0]
-      break
+      if android_device not in bad_devices:
+        break
   else:
     raise VideoQualityTestError('Cannot find any connected Android device.')
 
   processes = []
   try:
     # Start AppRTC Server
     dev_appserver = os.path.join(temp_dir, 'apprtc', 'temp', 'google-cloud-sdk',
                                 'bin', 'dev_appserver.py')
     appengine_dir = os.path.join(temp_dir, 'apprtc', 'out', 'app_engine')
     processes.append(_RunBackgroundCommand([
@@ skipping 70 matching lines @@
       if process:
         process.terminate()
         process.wait()
 
     shutil.rmtree(temp_dir)
 
 
 if __name__ == '__main__':
   sys.exit(main())