luci-py: Making __file__ usage unicode safe.

client/tests/isolate_smoke_test.py

 #!/usr/bin/env python
 # 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 cStringIO
 import hashlib
 import json
 import logging
 import os
 import re
 import stat
 import subprocess
 import sys
 import tempfile
 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 isolate
 import isolated_format
 from depot_tools import fix_encoding
 from utils import file_path
 
 import test_utils
 
 
@@ skipping 265 matching lines @@
                 'command': ['python', 'touch_root.py'],
                 'files': ['../../at_root', 'touch_root.py'],
               },
             }],
           ],
         }""",
       'tests/isolate/touch_root.py':
         """if __name__ == '__main__':
         import os, sys
         print('child_touch_root: Verify the relative directories')
-        root_dir = os.path.dirname(os.path.abspath(__file__))
+        root_dir = os.path.dirname(os.path.abspath(
+            __file__.decode(sys.getfilesystemencoding())))
         parent_dir, base = os.path.split(root_dir)
         parent_dir, base2 = os.path.split(parent_dir)
         if base != 'isolate' or base2 != 'tests':
           print('Invalid root dir %s' % root_dir)
           sys.exit(4)
         content = open(os.path.join(parent_dir, 'at_root'), 'r').read()
         sys.exit(int(content != 'foo'))""",
       'at_root': 'foo',
     },
     [
@@ skipping 38 matching lines @@
           for filename in filenames:
             fullpath = os.path.join(relroot, filename)
             actual[fullpath[len(root)+1:]] = open(fullpath, 'r').read()
           if mode == 'trace' and '.svn' in dirnames:
             dirnames.remove('.svn')
         if actual != expected:
           print('Failure')
           print(actual)
           print(expected)
           sys.exit(1)
-        root_dir = os.path.dirname(os.path.abspath(__file__))
+        root_dir = os.path.dirname(os.path.abspath(
+            __file__.decode(sys.getfilesystemencoding())))
         parent_dir, base = os.path.split(root_dir)
         if mode == 'trace':
           # Verify the parent directory.
           parent_dir, base2 = os.path.split(parent_dir)
           if base != 'isolate' or base2 != 'tests':
             print('mode trace: Invalid root dir %s' % root_dir)
             sys.exit(4)
         else:
           # Verify that we are not inside a checkout.
           if base == 'tests':
@@ skipping 688 matching lines @@
     # Move the .isolate file aside and rerun the command with the new source but
     # same destination.
     b_isolate = os.path.join(self.tempdir, 'b.isolate')
     os.rename(a_isolate, b_isolate)
     subprocess.check_call(cmd + ['-i', b_isolate], cwd=ROOT_DIR)
 
 
 if __name__ == '__main__':
   fix_encoding.fix_encoding()
   test_utils.main()