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Diffstat (limited to 'Lib')
| -rwxr-xr-x | Lib/test/test_dataclasses.py | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/Lib/test/test_dataclasses.py b/Lib/test/test_dataclasses.py index 2f3c531fc2..21a7d7ec3f 100755 --- a/Lib/test/test_dataclasses.py +++ b/Lib/test/test_dataclasses.py @@ -45,6 +45,25 @@ class TestCase(unittest.TestCase): o = C(42) self.assertEqual(o.x, 42) + def test_field_default_default_factory_error(self): + msg = "cannot specify both default and default_factory" + with self.assertRaisesRegex(ValueError, msg): + @dataclass + class C: + x: int = field(default=1, default_factory=int) + + def test_field_repr(self): + int_field = field(default=1, init=True, repr=False) + int_field.name = "id" + repr_output = repr(int_field) + expected_output = "Field(name='id',type=None," \ + f"default=1,default_factory={MISSING!r}," \ + "init=True,repr=False,hash=None," \ + "compare=True,metadata=mappingproxy({})," \ + "_field_type=None)" + + self.assertEqual(repr_output, expected_output) + def test_named_init_params(self): @dataclass class C: |