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JelleZijlstramiss-islington
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pythongh-123881: Add additional test coverage for PEP 695 edge cases (pythonGH-123886)
(cherry picked from commit b52de7e) Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
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‎Lib/test/test_type_params.py‎

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@@ -950,6 +950,7 @@ class C[T](Base, a=1, b=2, **kwargs):
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T, = C.__type_params__
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self.assertEqual(T.__name__, "T")
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self.assertEqual(C.kwargs, {"a": 1, "b": 2, "c": 3})
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self.assertEqual(C.__bases__, (Base, Generic))
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bases = (Base,)
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class C2[T](*bases, **kwargs):
@@ -958,6 +959,22 @@ class C2[T](*bases, **kwargs):
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T, = C2.__type_params__
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self.assertEqual(T.__name__, "T")
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self.assertEqual(C2.kwargs, {"c": 3})
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self.assertEqual(C2.__bases__, (Base, Generic))
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def test_starargs_base(self):
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class C1[T](*()): pass
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T, = C1.__type_params__
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self.assertEqual(T.__name__, "T")
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self.assertEqual(C1.__bases__, (Generic,))
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class Base: pass
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bases = [Base]
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class C2[T](*bases): pass
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T, = C2.__type_params__
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self.assertEqual(T.__name__, "T")
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self.assertEqual(C2.__bases__, (Base, Generic))
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class TypeParamsTraditionalTypeVarsTest(unittest.TestCase):

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