File: test_unsupported_union_member.py

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python-apischema 0.18.3-1
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from dataclasses import dataclass
from typing import Annotated, Union

import pytest

from apischema import Unsupported, ValidationError, deserialize


@dataclass
class Foo:
    bar: Union[int, Annotated[None, Unsupported]] = None


def test_unsupported_union_member():
    with pytest.raises(ValidationError) as err:
        deserialize(Foo, {"bar": None})
    assert err.value.errors == [
        {"loc": ["bar"], "err": "expected type integer, found null"}
    ]