bpo-28556: Add a regression test to typing (GH-15396) · python/cpython@5fda09c (original) (raw)

Original file line number	Diff line number	Diff line change
@@ -961,6 +961,23 @@ def __init__(self, x):
961	961	self.assertIsInstance(C(1), P)
962	962	self.assertIsInstance(C(1), PG)
963	963
	964	+def test_protocol_checks_after_subscript(self):
	965	+class P(Protocol[T]): pass
	966	+class C(P[T]): pass
	967	+class Other1: pass
	968	+class Other2: pass
	969	+CA = C[Any]
	970	+
	971	+self.assertNotIsInstance(Other1(), C)
	972	+self.assertNotIsSubclass(Other2, C)
	973	+
	974	+class D1(C[Any]): pass
	975	+class D2(C[Any]): pass
	976	+CI = C[int]
	977	+
	978	+self.assertIsInstance(D1(), C)
	979	+self.assertIsSubclass(D2, C)
	980	+
964	981	def test_protocols_support_register(self):
965	982	@runtime_checkable
966	983	class P(Protocol):