Migrate and merge logging_utils from swarming_bot into client/utils.

client/tests/run_isolated_test.py

 #!/usr/bin/env python
 # Copyright 2013 The Swarming Authors. All rights reserved.
 # Use of this source code is governed under the Apache License, Version 2.0 that
 # can be found in the LICENSE file.
 
 # pylint: disable=R0201
 
 import StringIO
 import functools
 import json
 import logging
 import os
 import shutil
 import sys
 import tempfile
 import unittest
 
 ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 sys.path.insert(0, ROOT_DIR)
 sys.path.insert(0, os.path.join(ROOT_DIR, 'third_party'))
 
 import isolated_format
 import isolateserver
 import run_isolated
 from depot_tools import auto_stub
 from utils import file_path
+from utils import logging_utils
 from utils import on_error
 from utils import subprocess42
 from utils import tools
 
 import isolateserver_mock
 
 
 def write_content(filepath, content):
   with open(filepath, 'wb') as f:
     f.write(content)
@@ skipping 22 matching lines @@
     channel.send_result(digest)
 
 
 class RunIsolatedTestBase(auto_stub.TestCase):
   def setUp(self):
     super(RunIsolatedTestBase, self).setUp()
     self.tempdir = tempfile.mkdtemp(prefix=u'run_isolated_test')
     logging.debug(self.tempdir)
     self.mock(run_isolated, 'make_temp_dir', self.fake_make_temp_dir)
     self.mock(run_isolated.auth, 'ensure_logged_in', lambda _: None)
+    self.mock(
+        logging_utils.OptionParserWithLogging, 'logger_root',
+        logging.Logger('unittest'))
 
   def tearDown(self):
     for dirpath, dirnames, filenames in os.walk(self.tempdir, topdown=True):
       for filename in filenames:
         file_path.set_read_only(os.path.join(dirpath, filename), False)
       for dirname in dirnames:
         file_path.set_read_only(os.path.join(dirpath, dirname), False)
     shutil.rmtree(self.tempdir)
     super(RunIsolatedTestBase, self).tearDown()
 
@@ skipping 298 matching lines @@
       ]) + '\n'
       self.assertEqual(expected, sys.stdout.getvalue())
     finally:
       server.close()
 
 
 if __name__ == '__main__':
   logging.basicConfig(
       level=logging.DEBUG if '-v' in sys.argv else logging.ERROR)
   unittest.main()