Ticket #18175: sorted_dict_copy_2.diff

django/utils/datastructures.py

@@ -128 +128 @@
         return self.__class__([(key, copy.deepcopy(value, memo))
                                for key, value in self.iteritems()])
 
+    def __copy__(self):
+        # We need this to make sure copy.copy doesn't alter this instance
+        return self.copy()
+
     def __setitem__(self, key, value):
         if key not in self:
             self.keyOrder.append(key)

tests/regressiontests/utils/datastructures.py

@@ -111 +111 @@
             {7: 'seven', 1: 'one', 9: 'nine'}
         )
 
+    def test_copy(self):
+        d = SortedDict(((1, "one"), (0, "zero"), (2, "two")))
+        copy.copy(d)
+        self.assertEqual(
+            d.keys(),
+            [1, 0, 2]
+        )
+
     def test_clear(self):
         self.d1.clear()
         self.assertEqual(self.d1, {})