Convert snakecase enum names to camelcase when stringified.

tools/json_schema_compiler/model_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.
 
 from json_schema import CachedLoad
 from idl_schema import Load
 from model import Platforms
 import model
 import unittest
@@ skipping 100 matching lines @@
       'FOO': 'foo',
       'FOOBar': 'foo_bar',
       'foo.bar': 'foo_bar',
       'foo.BAR': 'foo_bar',
       'foo.barBAZ': 'foo_bar_baz',
       'foo_Bar_Baz_box': 'foo_bar_baz_box',
       }
     for name in expectations:
       self.assertEquals(expectations[name], model.UnixName(name))
 
+  def testCamelName(self):
+    expectations = {
+      'foo': 'foo',
+      'fooBar': 'fooBar',
+      'foo_bar_baz': 'fooBarBaz',
+      'FOO_BAR': 'FOOBar',
+      'FOO_bar': 'FOOBar',
+      '_bar': 'Bar',
+      '_bar_baz': 'BarBaz',
+      'bar_': 'bar',
+      'bar_baz_': 'barBaz',
+      }
+    for testcase, expected in expectations.iteritems():
+      self.assertEquals(expected, model.CamelName(testcase))
+
   def testPlatforms(self):
     self.assertEqual([Platforms.CHROMEOS],
                      self.idl_namespace_chromeos.platforms)
     self.assertEqual(
         [Platforms.CHROMEOS, Platforms.CHROMEOS_TOUCH, Platforms.LINUX,
          Platforms.MAC, Platforms.WIN],
         self.idl_namespace_all_platforms.platforms)
     self.assertEqual(None,
         self.idl_namespace_non_specific_platforms.platforms)
 
 if __name__ == '__main__':
   unittest.main()