Function test_positional_only

tests/test_deprecated_validate_arguments.py:149–167

(create_module)

def test_positional_only(create_module):
    with pytest.warns(PydanticDeprecatedSince20):
        module = create_module(
            # language=Python
            """
from pydantic.deprecated.decorator import validate_arguments

@validate_arguments
def foo(a, b, /, c=None):
    return f'{a}, {b}, {c}'
"""
        )
    assert module.foo(1, 2) == '1, 2, None'
    assert module.foo(1, 2, 44) == '1, 2, 44'
    assert module.foo(1, 2, c=44) == '1, 2, 44'
    with pytest.raises(TypeError, match="positional-only argument passed as keyword argument: 'b'"):
        module.foo(1, b=2)
    with pytest.raises(TypeError, match="positional-only arguments passed as keyword arguments: 'a', 'b'"):
        module.foo(a=1, b=2)


def test_args_name():