GetJsonSchemaHandler as GetJsonSchemaHandler,
)
from pydantic._internal._typing_extra import eval_type_lenient
from pydantic._internal._utils import lenient_issubclass as lenient_issubclass
from pydantic.fields import FieldInfo as FieldInfo
from pydantic.json_schema import GenerateJsonSchema as GenerateJsonSchema
from pydantic.json_schema import JsonSchemaValue as JsonSchemaValue
from pydantic_core import CoreSchema as CoreSchema

from fastapi.testclient import TestClient
from pydantic import BaseModel, ConfigDict
from pydantic.fields import FieldInfo

from .utils import needs_py310


def test_model_field_default_required():
    from fastapi._compat import v2

    # For coverage
    field_info = FieldInfo(annotation=str)
    field = v2.ModelField(name="foo", field_info=field_info)
    assert field.default is Undefined

from pydantic import AliasChoices, AliasPath
from pydantic.fields import FieldInfo
from typing_extensions import Literal, deprecated

from ._compat import (
    Undefined,
)

_Unset: Any = Undefined


class ParamTypes(Enum):
    query = "query"
    header = "header"
    path = "path"
    cookie = "cookie"


class Param(FieldInfo):  # type: ignore[misc]
    in_: ParamTypes

    def __init__(