newforms-admin: Merged from trunk up to [7232]

git-svn-id: http://code.djangoproject.com/svn/django/branches/newforms-admin@7233 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/regressiontests/datastructures/tests.py

@@ -77,6 +77,8 @@ MultiValueDictKeyError: "Key 'lastname' not found in <MultiValueDict: {'position
 'not one'
 >>> d.keys() == d.copy().keys()
 True
+>>> d2 = d.copy()
+>>> d2['four'] = 'four'
 >>> print repr(d)
 {'one': 'not one', 'two': 'two', 'three': 'three'}
 >>> d.pop('one', 'missing')
@@ -99,6 +101,12 @@ Init from sequence of tuples
 >>> print repr(d)
 {1: 'one', 0: 'zero', 2: 'two'}
 
+>>> d.clear()
+>>> d
+{}
+>>> d.keyOrder
+[]
+
 ### DotExpandedDict ############################################################
 
 >>> d = DotExpandedDict({'person.1.firstname': ['Simon'], 'person.1.lastname': ['Willison'], 'person.2.firstname': ['Adrian'], 'person.2.lastname': ['Holovaty']})