У цьому випадку, якщо ви перейдете за:

```
http://127.0.0.1:8000/items/foo?short=1
```

або

```
http://127.0.0.1:8000/items/foo?short=True
```

або

```
http://127.0.0.1:8000/items/foo?short=true
```

або

```
http://127.0.0.1:8000/items/foo?short=on
```

або

```
http://127.0.0.1:8000/items/foo?short=yes
```

* Validate that the `item_id` is of type `int` for `GET` and `PUT` requests.
    * If it is not, the client will see a useful, clear error.
* Check if there is an optional query parameter named `q` (as in `http://127.0.0.1:8000/items/foo?q=somequery`) for `GET` requests.
    * As the `q` parameter is declared with `= None`, it is optional.
    * Without the `None` it would be required (as is the body in the case with `PUT`).

В этом случае, если вы сделаете запрос:

```
http://127.0.0.1:8000/items/foo?short=1
```

или

```
http://127.0.0.1:8000/items/foo?short=True
```

или

```
http://127.0.0.1:8000/items/foo?short=true
```

или

```
http://127.0.0.1:8000/items/foo?short=on
```

или

```
http://127.0.0.1:8000/items/foo?short=yes
```

    response = client.get("/query", params={"q": "foo"})
    assert response.status_code == 200
    assert response.json() == "foo"


def test_required_nonable_explicit_query_invalid():
    response = client.get("/explicit-query")
    assert response.status_code == 422


def test_required_nonable_explicit_query_value():
    response = client.get("/explicit-query", params={"q": "foo"})
    assert response.status_code == 200

---

回到之前的代码示例，**FastAPI** 将会：

* 校验 `GET` 和 `PUT` 请求的路径中是否包含 `item_id`。
* 校验 `GET` 和 `PUT` 请求中的 `item_id` 是否为 `int` 类型。
    * 如果不是，客户端会看到清晰有用的错误信息。
* 对于 `GET` 请求，检查是否存在名为 `q` 的可选查询参数（如 `http://127.0.0.1:8000/items/foo?q=somequery`）。
    * 因为参数 `q` 被声明为 `= None`，所以它是可选的。
    * 如果没有 `None`，它就是必需的（就像 `PUT` 情况下的请求体）。
* 对于发送到 `/items/{item_id}` 的 `PUT` 请求，把请求体作为 JSON 读取：
    * 检查是否存在必需属性 `name`，且为 `str`。
    * 检查是否存在必需属性 `price`，且为 `float`。

    }


def test_override_in_items_with_q():
    response = client.get("/items/?q=foo")
    assert response.status_code == 200
    assert response.json() == {
        "message": "Hello Items!",
        "params": {"q": "foo", "skip": 5, "limit": 10},
    }


def test_override_in_items_with_params():
    response = client.get("/items/?q=foo&skip=100&limit=200")
    assert response.status_code == 200
    assert response.json() == {

이 경우, 아래로 이동하면:

```
http://127.0.0.1:8000/items/foo?short=1
```

또는

```
http://127.0.0.1:8000/items/foo?short=True
```

또는

```
http://127.0.0.1:8000/items/foo?short=true
```

또는

```
http://127.0.0.1:8000/items/foo?short=on
```

또는

```
http://127.0.0.1:8000/items/foo?short=yes
```

        // To align Maven with outcomes, we set here color enabled based on these premises.
        // Note: Maven3 suffers from similar thing: if you do `mvn3 foo > log.txt`, the output will
        // not be not colored (good), but Maven will print out "Message scheme: color".
        MessageUtils.setColorEnabled(

        "description": "This is a special offer",
        "price": 38.6,
        "items": [
            {
                "name": "Foo",
                "description": "A very nice Item",
                "price": 35.4,
                "tax": 3.2,
                "tags": ["foo"],
                "images": [
                    {
                        "url": "http://example.com/image.png",

    return client


def test_post_body_q_bar_content(client: TestClient):
    response = client.put("/items/5?q=bar", json={"name": "Foo", "price": 50.5})
    assert response.status_code == 200
    assert response.json() == {
        "item_id": 5,
        "item": {
            "name": "Foo",
            "price": 50.5,
            "description": None,
            "tax": None,
        },
        "q": "bar",
    }