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bpo-33569 Preserve type information with dataclasses.InitVar (GH-8927)

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Augusto Hack 2019-06-02 23:14:48 -03:00 • committed by Eric V. Smith
parent 0025350294
commit 01ee12ba35
3 changed files with 17 additions and 3 deletions
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6
Lib/test/test_dataclasses.py
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@ -1097,6 +1097,12 @@ class TestCase(unittest.TestCase):
c = C(init_param=10)
self.assertEqual(c.x, 20)
def test_init_var_preserve_type(self):
self.assertEqual(InitVar[int].type, int)
# Make sure the repr is correct.
self.assertEqual(repr(InitVar[int]), 'dataclasses.InitVar[int]')
def test_init_var_inheritance(self):
# Note that this deliberately tests that a dataclass need not
# have a __post_init__ function if it has an InitVar field.