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| author | Jelle Zijlstra <jelle.zijlstra@gmail.com> | 2021-04-11 03:00:05 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-04-11 03:00:05 (GMT) |
| commit | 9045919bfa820379a66ea67219f79ef6d9ecab49 (patch) | |
| tree | 7762f15b2d875b36ffc84a2e98ff761e6267cd6d /Lib/test | |
| parent | 522433601a5c64603dab3d733f41a5db39d237eb (diff) | |
| download | cpython-9045919bfa820379a66ea67219f79ef6d9ecab49.zip cpython-9045919bfa820379a66ea67219f79ef6d9ecab49.tar.gz cpython-9045919bfa820379a66ea67219f79ef6d9ecab49.tar.bz2 | |
bpo-43772: Fix TypeVar.__ror__ (GH-25339)
Diffstat (limited to 'Lib/test')
| -rw-r--r-- | Lib/test/test_typing.py | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Lib/test/test_typing.py b/Lib/test/test_typing.py index 7183686..82c517a 100644 --- a/Lib/test/test_typing.py +++ b/Lib/test/test_typing.py @@ -186,6 +186,16 @@ class TypeVarTests(BaseTestCase): self.assertEqual(Union[X, int].__parameters__, (X,)) self.assertIs(Union[X, int].__origin__, Union) + def test_or(self): + X = TypeVar('X') + # use a string because str doesn't implement + # __or__/__ror__ itself + self.assertEqual(X | "x", Union[X, "x"]) + self.assertEqual("x" | X, Union["x", X]) + # make sure the order is correct + self.assertEqual(get_args(X | "x"), (X, ForwardRef("x"))) + self.assertEqual(get_args("x" | X), (ForwardRef("x"), X)) + def test_union_constrained(self): A = TypeVar('A', str, bytes) self.assertNotEqual(Union[A, str], Union[A]) |