app = FastAPI(separate_input_output_schemas=separate_input_output_schemas)

    @app.post("/items/", responses={402: {"model": Item}})
    def create_item(item: Item) -> Item:
        return item

    @app.post("/items-list/")
    def create_item_list(item: list[Item]):
        return item

    @app.get("/items/")
    def read_items() -> list[Item]:
        return [
            Item(

def test_body_float(client: TestClient):
    response = client.post("/items/", json={"name": "Foo", "price": 50.5})
    assert response.status_code == 200
    assert response.json() == {
        "name": "Foo",
        "price": 50.5,
        "description": None,
        "tax": None,
    }


def test_post_with_str_float(client: TestClient):
    response = client.post("/items/", json={"name": "Foo", "price": "50.5"})

///

## 其他使用 `APIRouter` 的模块

假设你在位于 `app/routers/items.py` 的模块中还有专门用于处理应用程序中「项目」的端点。

你具有以下*路径操作*：

* `/items/`
* `/items/{item_id}`

这和 `app/routers/users.py` 的结构完全相同。

但是我们想变得更聪明并简化一些代码。

我们知道此模块中的所有*路径操作*都有相同的：

* 路径 `prefix`：`/items`。
* `tags`：（仅有一个 `items` 标签）。
* 额外的 `responses`。
* `dependencies`：它们都需要我们创建的 `X-Token` 依赖项。

                        },
                        "items": {
                            "title": "Items",
                            "type": "array",
                            "items": {"$ref": "#/components/schemas/Item"},
                        },
                    },
                    "required": ["name", "price", "items"],
                    "title": "Offer",
                    "type": "object",

* look for the subpackage `routers` (the directory at `app/routers/`)...
* and from it, import the submodule `items` (the file at `app/routers/items.py`) and `users` (the file at `app/routers/users.py`)...

The module `items` will have a variable `router` (`items.router`). This is the same one we created in the file `app/routers/items.py`, it's an `APIRouter` object.

And then we do the same for the module `users`.

   */
  private E extract() {
    E[] items = this.items;
    E x = items[takeIndex];
    items[takeIndex] = null;
    takeIndex = inc(takeIndex);
    --count;
    return x;
  }

  /**
   * Utility for remove and iterator.remove: Delete item at position i. Call only when occupying
   * monitor.
   */
  void removeAt(int i) {
    E[] items = this.items;
    // if removing front item, just advance

* Suche nach dem Subpackage `routers` (das Verzeichnis unter `app/routers/`) ...
* und importiere daraus die Submodule `items` (die Datei unter `app/routers/items.py`) und `users` (die Datei unter `app/routers/users.py`) ...

Das Modul `items` verfügt über eine Variable `router` (`items.router`). Das ist dieselbe, die wir in der Datei `app/routers/items.py` erstellt haben, es ist ein `APIRouter`-Objekt.

Und dann machen wir das gleiche für das Modul `users`.

* ... найдите суб-пакет `routers` (каталог `app/routers/`)...
* ... и из него импортируйте суб-модули `items` (файл `app/routers/items.py`) и `users` (файл `app/routers/users.py`)...

В модуле `items` содержится переменная `router` (`items.router`), та самая, которую мы создали в файле `app/routers/items.py`, она является объектом класса `APIRouter`.

И затем мы сделаем то же самое для модуля `users`.

                            "items": {"$ref": "#/components/schemas/ValidationError"},
                        }
                    },
                },
                "ItemGroup": {
                    "title": "ItemGroup",
                    "required": ["items"],
                    "type": "object",
                    "properties": {
                        "items": {

    mod = importlib.import_module(f"docs_src.body_multiple_params.{request.param}")

    client = TestClient(mod.app)
    return client


def test_post_all(client: TestClient):
    response = client.put(
        "/items/5",
        json={
            "item": {
                "name": "Foo",
                "price": 50.5,
                "description": "Some Foo",
                "tax": 0.1,
            },