Increase coverage to 91%; Much stricter about header parsing.

tests/checkout_test.py

 #!/usr/bin/env python
 # Copyright (c) 2011 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.
 
 """Unit tests for checkout.py."""
 
 from __future__ import with_statement
 import logging
 import os
@@ skipping 133 matching lines @@
     self.previous_log = None
 
   def tearDown(self):
     subprocess2.call = self._old_call
     super(BaseTest, self).tearDown()
 
   def get_patches(self):
     return patch.PatchSet([
         patch.FilePatchDiff(
             'svn_utils_test.txt', GIT_PATCH, []),
-        patch.FilePatchBinary('bin_file', '\x00', []),
+        # TODO(maruel): Test with is_new == False.
+        patch.FilePatchBinary('bin_file', '\x00', [], is_new=True),
         patch.FilePatchDelete('extra', False),
         patch.FilePatchDiff('new_dir/subdir/new_file', PATCH_ADD, []),
     ])
 
   def get_trunk(self, modified):
     tree = {}
     subroot = 'trunk/'
     for k, v in self.FAKE_REPOS.svn_revs[-1].iteritems():
       if k.startswith(subroot):
         f = k[len(subroot):]
@@ skipping 375 matching lines @@
   if '-v' in sys.argv:
     DEBUGGING = True
     logging.basicConfig(
         level=logging.DEBUG,
         format='%(levelname)5s %(filename)15s(%(lineno)3d): %(message)s')
   else:
     logging.basicConfig(
         level=logging.ERROR,
         format='%(levelname)5s %(filename)15s(%(lineno)3d): %(message)s')
   unittest.main()