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Method test_generic

Lib/test/test_typing.py:8289–8318  ·  view source on GitHub ↗
(self)

Source from the content-addressed store, hash-verified

8287 y: str
8288
8289 def test_generic(self):
8290 class X(NamedTuple, Generic[T]):
8291 x: T
8292 self.assertEqual(X.__bases__, (tuple, Generic))
8293 self.assertEqual(X.__orig_bases__, (NamedTuple, Generic[T]))
8294 self.assertEqual(X.__mro__, (X, tuple, Generic, object))
8295
8296 class Y(Generic[T], NamedTuple):
8297 x: T
8298 self.assertEqual(Y.__bases__, (Generic, tuple))
8299 self.assertEqual(Y.__orig_bases__, (Generic[T], NamedTuple))
8300 self.assertEqual(Y.__mro__, (Y, Generic, tuple, object))
8301
8302 for G in X, Y:
8303 with self.subTest(type=G):
8304 self.assertEqual(G.__parameters__, (T,))
8305 self.assertEqual(G[T].__args__, (T,))
8306 self.assertEqual(get_args(G[T]), (T,))
8307 A = G[int]
8308 self.assertIs(A.__origin__, G)
8309 self.assertEqual(A.__args__, (int,))
8310 self.assertEqual(get_args(A), (int,))
8311 self.assertEqual(A.__parameters__, ())
8312
8313 a = A(3)
8314 self.assertIs(type(a), G)
8315 self.assertEqual(a.x, 3)
8316
8317 with self.assertRaises(TypeError):
8318 G[int, str]
8319
8320 def test_generic_pep695(self):
8321 class X[T](NamedTuple):

Callers

nothing calls this directly

Calls 6

get_argsFunction · 0.90
AClass · 0.70
assertEqualMethod · 0.45
subTestMethod · 0.45
assertIsMethod · 0.45
assertRaisesMethod · 0.45

Tested by

no test coverage detected