Fix python scripts in src/tools/

tools/code_coverage/croc_test.py

-#!/usr/bin/python2.4
-#
-# Copyright 2009, Google Inc.
-# All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-#        * Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-#        * Redistributions in binary form must reproduce the above
-#     copyright notice, this list of conditions and the following disclaimer
-#     in the documentation and/or other materials provided with the
-#     distribution.
-#        * Neither the name of Google Inc. nor the names of its
-#     contributors may be used to endorse or promote products derived from
-#     this software without specific prior written permission.
-#
-#     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-#     "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-#     LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-#     A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-#     OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-#     SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-#     LIMITED TO, PROCUREMENT  OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-#     DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-#     THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-#     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-#     OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#!/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 Crocodile."""
 
 import os
 import StringIO
 import unittest
 import croc
 
-#------------------------------------------------------------------------------
-
 
 class TestCoverageStats(unittest.TestCase):
   """Tests for croc.CoverageStats."""
 
   def testAdd(self):
     """Test Add()."""
     c = croc.CoverageStats()
 
     # Initially empty
     self.assertEqual(c, {})
 
     # Add items
     c['a'] = 1
     c['b'] = 0
     self.assertEqual(c, {'a': 1, 'b': 0})
 
     # Add dict with non-overlapping items
     c.Add({'c': 5})
     self.assertEqual(c, {'a': 1, 'b': 0, 'c': 5})
 
     # Add dict with overlapping items
     c.Add({'a': 4, 'd': 3})
     self.assertEqual(c, {'a': 5, 'b': 0, 'c': 5, 'd': 3})
 
-#------------------------------------------------------------------------------
-
 
 class TestCoveredFile(unittest.TestCase):
   """Tests for croc.CoveredFile."""
 
   def setUp(self):
     self.cov_file = croc.CoveredFile('bob.cc', group='source', language='C++')
 
   def testInit(self):
     """Test init."""
     f = self.cov_file
@@ skipping 60 matching lines @@
     f.UpdateCoverage()
     self.assertEqual(f.stats, {
         'lines_executable': 7,
         'lines_instrumented': 4,
         'lines_covered': 2,
         'files_executable': 1,
         'files_instrumented': 1,
         'files_covered': 1,
     })
 
-#------------------------------------------------------------------------------
-
 
 class TestCoveredDir(unittest.TestCase):
   """Tests for croc.CoveredDir."""
 
   def setUp(self):
     self.cov_dir = croc.CoveredDir('/a/b/c')
 
   def testInit(self):
     """Test init."""
     d = self.cov_dir
@@ skipping 27 matching lines @@
     """Test getting tree with subdirs."""
     d1 = self.cov_dir = croc.CoveredDir('/a')
     d2 = self.cov_dir = croc.CoveredDir('/a/b')
     d3 = self.cov_dir = croc.CoveredDir('/a/c')
     d4 = self.cov_dir = croc.CoveredDir('/a/b/d')
     d5 = self.cov_dir = croc.CoveredDir('/a/b/e')
     d1.subdirs = {'/a/b': d2, '/a/c': d3}
     d2.subdirs = {'/a/b/d': d4, '/a/b/e': d5}
     self.assertEqual(d1.GetTree(), 'a/\n  b/\n    d/\n    e/\n  c/')
 
-#------------------------------------------------------------------------------
-
 
 class TestCoverage(unittest.TestCase):
   """Tests for croc.Coverage."""
 
   def MockWalk(self, src_dir):
     """Mock for os.walk().
 
     Args:
       src_dir: Source directory to walk.
 
@@ skipping 572 matching lines @@
             'files_instrumented': 1,
         }
     })
 
   # TODO: test: less important, since these are thin wrappers around other
   # tested methods.
   #     ParseConfig()
   #     ParseLcovFile()
   #     PrintTree()
 
-#------------------------------------------------------------------------------
 
 if __name__ == '__main__':
   unittest.main()