假设有一个客户端尝试在**查询参数**中发送一些**额外的**数据，它将会收到一个**错误**响应。

例如，如果客户端尝试发送一个值为 `plumbus` 的 `tool` 查询参数，如：

```http
https://example.com/items/?limit=10&tool=plumbus
```

他们将收到一个**错误**响应，告诉他们查询参数 `tool` 是不允许的：

```json
{
    "detail": [
        {
            "type": "extra_forbidden",
            "loc": ["query", "tool"],
            "msg": "Extra inputs are not permitted",
            "input": "plumbus"
        }
    ]
}
```

## Запуск тестов { #run-it }

Вы можете запустить свои тесты как обычно:

<div class="termy">

```console
$ pytest

---> 100%
```

</div>

## Подробнее { #in-detail }

Маркер `@pytest.mark.anyio` говорит pytest, что тестовая функция должна быть вызвана асинхронно:

{* ../../docs_src/async_tests/app_a_py310/test_main.py hl[7] *}

/// tip | Подсказка

## Executá-lo { #run-it }

Você pode executar os seus testes normalmente via:

<div class="termy">

```console
$ pytest

---> 100%
```

</div>

## Em Detalhes { #in-detail }

O marcador `@pytest.mark.anyio` informa ao pytest que esta função de teste deve ser invocada de maneira assíncrona:

{* ../../docs_src/async_tests/app_a_py310/test_main.py hl[7] *}

/// tip | Dica

But for security, as the server doesn't know it is behind a trusted proxy, it won't interpret those headers.

/// note | Technical Details

The proxy headers are:

* [X-Forwarded-For](https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/X-Forwarded-For)

                                                <tr
                                                        data-href="${contextPath}/admin/duplicatehost/details/4/${f:u(data.id)}" role="button" tabindex="0">
                                                    <td>${f:h(data.regularName)}</td>
                                                    <td>${f:h(data.duplicateHostName)}</td>

                                                <tr
                                                        data-href="${contextPath}/admin/relatedquery/details/4/${f:u(data.id)}" role="button" tabindex="0">
                                                    <td>${f:h(data.term)}</td>
                                                </tr>

   *   <li>Usable as {@code Map} keys (see the Guava User Guide's section on <a
   *       href="https://github.com/google/guava/wiki/GraphsExplained#graph-elements-nodes-and-edges">
   *       graph elements</a> for details)
   * </ul>
   *
   * @throws IllegalArgumentException if {@code node} is not an element of this graph
   */
  Iterable<? extends N> predecessors(N node);

   *   <li>Usable as {@code Map} keys (see the Guava User Guide's section on <a
   *       href="https://github.com/google/guava/wiki/GraphsExplained#graph-elements-nodes-and-edges">
   *       graph elements</a> for details)
   * </ul>
   *
   * @throws IllegalArgumentException if {@code node} is not an element of this graph
   */
  Iterable<? extends N> successors(N node);

 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */