generate_stubs: Allow // comments as well as the existing #.

tools/generate_stubs/generate_stubs_unittest.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.
 
 """Unittest for the generate_stubs.py.
 
 Since generate_stubs.py is a code generator, it is hard to do a very good
 test.  Instead of creating a golden-file test, which might be flakey, this
 test elects instead to verify that various components "exist" within the
@@ skipping 98 matching lines @@
       self.assertRaises(gs.BadSignatureError, gs.ParseSignatures, infile)
 
   def testParseSignatures_CommentsIgnored(self):
     my_sigs = []
     my_sigs.append('# a comment')
     my_sigs.append(SIMPLE_SIGNATURES[0][0])
     my_sigs.append('# another comment')
     my_sigs.append(SIMPLE_SIGNATURES[0][0])
     my_sigs.append('# a third comment')
     my_sigs.append(SIMPLE_SIGNATURES[0][0])
+    my_sigs.append('// a fourth comment')
+    my_sigs.append(SIMPLE_SIGNATURES[0][0])
+    my_sigs.append('//')
+    my_sigs.append(SIMPLE_SIGNATURES[0][0])
 
     file_contents = '\n'.join(my_sigs)
     infile = StringIO.StringIO(file_contents)
     signatures = gs.ParseSignatures(infile)
-    self.assertEqual(3, len(signatures))
+    self.assertEqual(5, len(signatures))
 
 
 class WindowsLibUnittest(unittest.TestCase):
   def testWriteWindowsDefFile(self):
     module_name = 'my_module-1'
     signatures = [sig[1] for sig in SIMPLE_SIGNATURES]
     outfile = StringIO.StringIO()
     gs.WriteWindowsDefFile(module_name, signatures, outfile)
     contents = outfile.getvalue()
 
@@ skipping 154 matching lines @@
                       msg='Expected "%s" in %s' % (decl, contents))
       decl = gs.PosixStubWriter.InitializeModuleName(name)
       self.assertTrue(contents.find(decl) != -1,
                       msg='Expected "%s" in %s' % (decl, contents))
       decl = gs.PosixStubWriter.UninitializeModuleName(name)
       self.assertTrue(contents.find(decl) != -1,
                       msg='Expected "%s" in %s' % (decl, contents))
 
 if __name__ == '__main__':
   unittest.main()