TypedDict: update test for changes to keys, values, items (#8104)

The signature of TypedDict's keys, values, items will be updated in
typeshed in:
python/typeshed#3529

The relevant issue is:
python/typeshed#3473

That PR fails testTypedDictMappingMethods
https://travis-ci.org/python/typeshed/builds/621439570

Tested by using my patched version of typeshed:
ln -sf ~/typeshed mypy/typeshed
pytest -n0 -k testTypedDictMappingMethods

Co-authored-by: hauntsaninja <>

Author: hauntsaninja

test-data/unit/pythoneval.test

@@ -1117,9 +1117,9 @@ _testTypedDictMappingMethods.py:5: note: Revealed type is 'builtins.str*'
 _testTypedDictMappingMethods.py:6: note: Revealed type is 'typing.Iterator[builtins.str*]'
 _testTypedDictMappingMethods.py:7: note: Revealed type is 'builtins.int'
 _testTypedDictMappingMethods.py:8: note: Revealed type is 'builtins.bool'
-_testTypedDictMappingMethods.py:9: note: Revealed type is 'typing.AbstractSet[builtins.str*]'
-_testTypedDictMappingMethods.py:10: note: Revealed type is 'typing.AbstractSet[Tuple[builtins.str*, builtins.object*]]'
-_testTypedDictMappingMethods.py:11: note: Revealed type is 'typing.ValuesView[builtins.object*]'
+_testTypedDictMappingMethods.py:9: note: Revealed type is 'typing.KeysView[builtins.str]'
+_testTypedDictMappingMethods.py:10: note: Revealed type is 'typing.ItemsView[builtins.str, builtins.object]'
+_testTypedDictMappingMethods.py:11: note: Revealed type is 'typing.ValuesView[builtins.object]'
 _testTypedDictMappingMethods.py:12: note: Revealed type is 'TypedDict('_testTypedDictMappingMethods.Cell', {'value': builtins.int})'
 _testTypedDictMappingMethods.py:13: note: Revealed type is 'builtins.int'
 _testTypedDictMappingMethods.py:15: error: Unexpected TypedDict key 'invalid'