luci-py: Making __file__ usage unicode safe.

client/tests/trace_inputs_smoke_test.py

 #!/usr/bin/env python
 # coding=utf-8
 # Copyright 2012 The LUCI 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.
 
 import functools
 import json
 import logging
 import os
 import shutil
 import subprocess
 import sys
 import tempfile
 import unicodedata
 import unittest
 
-ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(
+    __file__.decode(sys.getfilesystemencoding()))))
 sys.path.insert(0, ROOT_DIR)
 
 import trace_inputs
 from third_party.depot_tools import fix_encoding
 from utils import file_path
 from utils import threading_utils
 
 
-FILENAME = os.path.basename(__file__)
+FILENAME = os.path.basename(__file__.decode(sys.getfilesystemencoding()))
 REL_DATA = os.path.join(u'tests', 'trace_inputs')
 VERBOSE = False
 
 # TODO(maruel): Have the kernel tracer on Windows differentiate between file
 # read or file write.
 MODE_R = trace_inputs.Results.File.READ if sys.platform != 'win32' else None
 MODE_W = trace_inputs.Results.File.WRITE if sys.platform != 'win32' else None
 MODE_T = trace_inputs.Results.File.TOUCHED
 
 
@@ skipping 689 matching lines @@
   VERBOSE = '-v' in sys.argv
   logging.basicConfig(level=logging.DEBUG if VERBOSE else logging.ERROR)
   if VERBOSE:
     unittest.TestCase.maxDiff = None
   # Necessary for the dtrace logger to work around execve() hook. See
   # trace_inputs.py for more details.
   os.environ['TRACE_INPUTS_DTRACE_ENABLE_EXECVE'] = '1'
   print >> sys.stderr, 'Test are currently disabled'
   sys.exit(0)
   #unittest.main()