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bpo-35341: Add generic version of OrderedDict to typing (GH-10850)

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Ismo Toijala 2018-12-02 17:53:14 +02:00 • committed by Ivan Levkivskyi
parent 32bc11c33c
commit 68b56d02ef
4 changed files with 24 additions and 0 deletions
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16
Lib/test/test_typing.py
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@ -2075,6 +2075,22 @@ class CollectionsAbcTests(BaseTestCase):
self.assertIsSubclass(MyDefDict, collections.defaultdict)
self.assertNotIsSubclass(collections.defaultdict, MyDefDict)
def test_ordereddict_instantiation(self):
self.assertIs(type(typing.OrderedDict()), collections.OrderedDict)
self.assertIs(type(typing.OrderedDict[KT, VT]()), collections.OrderedDict)
self.assertIs(type(typing.OrderedDict[str, int]()), collections.OrderedDict)
def test_ordereddict_subclass(self):
class MyOrdDict(typing.OrderedDict[str, int]):
pass
od = MyOrdDict()
self.assertIsInstance(od, MyOrdDict)
self.assertIsSubclass(MyOrdDict, collections.OrderedDict)
self.assertNotIsSubclass(collections.OrderedDict, MyOrdDict)
@skipUnless(sys.version_info >= (3, 3), 'ChainMap was added in 3.3')
def test_chainmap_instantiation(self):
self.assertIs(type(typing.ChainMap()), collections.ChainMap)