client = TestClient(app)


class Item(BaseModel):
    data: str


def duplicate_dependency(item: Item):
    return item


def dependency(item2: Item):
    return item2


def sub_duplicate_dependency(
    item: Item, sub_item: Item = Depends(duplicate_dependency)
):
    return [item, sub_item]


@app.post("/with-duplicates")

                    },
                    "summary": "Update Item",
                },
            },
        },
        "components": {
            "schemas": {
                "Body_update_item_items__item_id__put": {
                    "properties": {
                        "item": {
                            "$ref": "#/components/schemas/Item",
                        },
                        "user": {

from fastapi.testclient import TestClient
from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: Optional[str] = None


class ExtendedItem(Item):
    age: int


@app.post("/items/")
def save_union_different_body(item: Union[ExtendedItem, Item]):
    return {"item": item}


client = TestClient(app)


def test_post_extended_item():

            "tags": [],
            "tax": None,
        },
    ]


def test_create_item(client: TestClient):
    item_data = {
        "name": "Test Item",
        "description": "A test item",
        "price": 10.5,
        "tax": 1.5,
        "tags": ["test", "item"],
    }
    response = client.post("/items/", json=item_data)
    assert response.status_code == 200, response.text
    assert response.json() == item_data

            "description": "A very nice Item",
            "price": 35.4,
            "tax": 3.2,
            "tags": ["foo", "bar", "foo"],
            "image": {"url": "http://example.com/image.png", "name": "example image"},
        },
    )
    assert response.status_code == 200, response.text
    assert response.json() == {
        "item_id": 123,
        "item": {
            "name": "Foo",

            return item

    @app.post("/examples/")
    def examples(
        item: Item = Body(
            examples=[
                {"data": "Data in Body examples, example1"},
                {"data": "Data in Body examples, example2"},
            ],
        ),
    ):
        return item

    with pytest.warns(FastAPIDeprecationWarning):

                        },
                        "summary": "Read Item Name",
                        "operationId": "read_item_name_items__item_id__name_get",
                        "parameters": [
                            {
                                "required": True,
                                "schema": {"title": "Item Id", "type": "string"},
                                "name": "item_id",

                        },
                        "summary": "Read Item Name",
                        "operationId": "read_item_name_items__item_id__name_get",
                        "parameters": [
                            {
                                "required": True,
                                "schema": {"title": "Item Id", "type": "string"},
                                "name": "item_id",

        price: float

    Item = Annotated[
        Union[Annotated[FirstItem, Tag("first")], Annotated[OtherItem, Tag("other")]],
        Field(discriminator="value"),
    ]

    @app.post("/items/")
    def save_union_body_discriminator(
        item: Item, q: Annotated[str, Field(description="Query string")]
    ) -> dict[str, Any]:
        return {"item": item}

    client = TestClient(app)

                    "summary": "Update Item",
                    "operationId": "update_item_items__item_id__put",
                    "parameters": [
                        {
                            "name": "item_id",
                            "in": "path",
                            "required": True,
                            "schema": {"type": "integer", "title": "Item Id"},
                        }