Function test_recursive_model

tests/test_forward_ref.py:685–701

(create_module)

def test_recursive_model(create_module):
    module = create_module(
        # language=Python
        """
from __future__ import annotations
from typing import Optional
from pydantic import BaseModel

class Foobar(BaseModel):
    x: int
    y: Optional[Foobar] = None
"""
    )
    f = module.Foobar(x=1, y={'x': 2})
    assert f.model_dump() == {'x': 1, 'y': {'x': 2, 'y': None}}
    assert f.model_fields_set == {'x', 'y'}
    assert f.y.model_fields_set == {'x'}


@pytest.mark.skipif(sys.version_info < (3, 10), reason='needs 3.10 or newer')