From 58fa955dd49cb5558bd37ad27ca0c9ac108a103d 2012-08-16 22:32:41
From: MinRK <benjaminrk@gmail.com>
Date: 2012-08-16 22:32:41
Subject: [PATCH] test Dict trait assignment

---

diff --git a/IPython/utils/tests/test_traitlets.py b/IPython/utils/tests/test_traitlets.py
index ef9024b..6f1592a 100644
--- a/IPython/utils/tests/test_traitlets.py
+++ b/IPython/utils/tests/test_traitlets.py
@@ -25,10 +25,11 @@ import re
 import sys
 from unittest import TestCase
 
+import nose.tools as nt
 from nose import SkipTest
 
 from IPython.utils.traitlets import (
-    HasTraits, MetaHasTraits, TraitType, Any, CBytes,
+    HasTraits, MetaHasTraits, TraitType, Any, CBytes, Dict,
     Int, Long, Integer, Float, Complex, Bytes, Unicode, TraitError,
     Undefined, Type, This, Instance, TCPAddress, List, Tuple,
     ObjectName, DottedObjectName, CRegExp
@@ -906,3 +907,14 @@ class TestCRegExp(TraitTestBase):
     _default_value = re.compile(r'')
     _good_values = [r'\d+', re.compile(r'\d+')]
     _bad_values = [r'(', None, ()]
+
+class DictTrait(HasTraits):
+    value = Dict()
+
+def test_dict_assignment():
+    d = dict()
+    c = DictTrait()
+    c.value = d
+    d['a'] = 5
+    nt.assert_equal(d, c.value)
+    nt.assert_true(c.value is d)