Switch trace_inputs.py and isolate.py to subcommand.py.

tests/isolate_smoke_test.py

 #!/usr/bin/env python
 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import cStringIO
 import hashlib
 import json
 import logging
 import os
@@ skipping 385 matching lines @@
   # Does not inherit from the other *Base classes.
   def test_help_modes(self):
     # Check coherency in the help and implemented modes.
     p = subprocess.Popen(
         [sys.executable, os.path.join(ROOT_DIR, 'isolate.py'), '--help'],
         stdout=subprocess.PIPE,
         stderr=subprocess.STDOUT,
         cwd=ROOT_DIR)
     out = p.communicate()[0].splitlines()
     self.assertEqual(0, p.returncode)
-    out = out[out.index('') + 1:]
+    out = out[out.index('Commands are:') + 1:]
     out = out[:out.index('')]
-    modes = [re.match(r'^  (\w+) .+', l) for l in out]
-    modes = tuple(m.group(1) for m in modes if m)
+    regexp = '^  (?:\x1b\\[\\d\\dm)(\\w+)\s*(:?\x1b\\[\\d\\dm) .+'

[Vadim Sh., 2013/08/19 17:54:02]

err.... what is that? :) looks like write-only regexp. Colors, I guess?..
Also, what happens if this test is run on Windows?

[M-A Ruel, 2013/08/19 20:05:03]

ANSI escape code. ESC[\d\dm
http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
Yes the test pass even on Windows, I verified. How colorama works if that it
looks at stdout and look for ANSI color codes, when it finds one, it calls the
corresponding Win32 API.

+    modes = [re.match(regexp, l) for l in out]
+    modes = [m.group(1) for m in modes if m]
     self.assertEqual(sorted(EXPECTED_MODES), sorted(modes))
 
   def test_modes(self):
     # This is a bit redundant but make sure all combinations are tested.
     files = sorted(
       i[:-len('.isolate')]
       for i in os.listdir(os.path.join(ROOT_DIR, 'tests', 'isolate'))
       if i.endswith('.isolate')
     )
     files.remove('simple')
@@ skipping 731 matching lines @@
     self.assertEqual('Simply works.\n', stdout)
     self.assertEqual(0, proc.returncode)
 
 
 if __name__ == '__main__':
   VERBOSE = '-v' in sys.argv
   logging.basicConfig(level=logging.DEBUG if VERBOSE else logging.ERROR)
   if VERBOSE:
     unittest.TestCase.maxDiff = None
   unittest.main()