mojo: Add maps to python bindings.

mojo/python/tests/bindings_serialization_deserialization_unittest.py

 # Copyright 2014 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 math
 import unittest
 
 # pylint: disable=F0401
 import mojo.bindings.reflection as reflection
 import mojo.system
@@ skipping 13 matching lines @@
   if x == y:
     return True
 
   if type(x) != type(y):
     print '\n%r != %r. Element are not of the same type.' % (x, y)
     return False
 
   if isinstance(x, float) and math.isnan(x) and math.isnan(y):
     return True
 
+  if isinstance(x, dict):
+    x = x.items()

[sdefresne, 2014/10/10 15:10:27]

I not sure whether python guarantee that dict1.items() and dict2.items() always
returns the elements in the same order if they have the same keys. I think it
would be safer to sort the two lists on their key (if it make sense) or to add a
special treatment for dict here (by iterating on one of the dict and comparing
it to the other).

[qsr, 2014/10/10 15:36:06]

Done.

+    y = y.items()
+
   if hasattr(x, '__len__'):
     if len(x) != len(y):
       print '\n%r != %r. Iterables are not of the same size.' % (x, y)
       return False
     for (x1, y1) in zip(x, y):
       if not _TestEquality(x1, y1):
         return False
     return True
 
   if (hasattr(x, '__metaclass__') and
@@ skipping 77 matching lines @@
     v1.a21 = sample_import_mojom.Point()
     v1.a22.location = sample_import_mojom.Point()
     v1.a22.size = sample_import2_mojom.Size()
     (data, handles) = v1.Serialize()
     v2 = sample_service_mojom.DefaultsTest.Deserialize(data, handles)
     self.assertTrue(_TestEquality(v1, v2))
 
   def testFooDeserializationError(self):
     with self.assertRaises(Exception):
       sample_service_mojom.Foo.Deserialize("", [])