# `HTTPConnection`-Klasse

Wenn Sie Abhängigkeiten definieren möchten, die sowohl mit HTTP als auch mit WebSockets kompatibel sein sollen, können Sie einen Parameter definieren, der eine `HTTPConnection` anstelle eines `Request` oder eines `WebSocket` akzeptiert.

Sie können diese von `fastapi.requests` importieren:

```python
from fastapi.requests import HTTPConnection
```

import pytest
from fastapi.exceptions import FastAPIError


def test_invalid_response_model():
    with pytest.raises(FastAPIError):
        from docs_src.response_model.tutorial003_04 import app

=== "Python 3.10+"

    ```Python hl_lines="16  21"
    {!> ../../../docs_src/response_model/tutorial001_01_py310.py!}
    ```

=== "Python 3.9+"

    ```Python hl_lines="18  23"
    {!> ../../../docs_src/response_model/tutorial001_01_py39.py!}
    ```

=== "Python 3.8+"

    ```Python hl_lines="18  23"
    {!> ../../../docs_src/response_model/tutorial001_01.py!}
    ```

import pytest
from fastapi.exceptions import FastAPIError

from ...utils import needs_py310


@needs_py310
def test_invalid_response_model():
    with pytest.raises(FastAPIError):
        from docs_src.response_model.tutorial003_04_py310 import app

```Python
old_dict = {
    "old key": "old value",
    "second old key": "second old value",
}
new_dict = {**old_dict, "new key": "new value"}
```

Ici, `new_dict` contiendra toutes les paires clé-valeur de `old_dict` plus la nouvelle paire clé-valeur :

```Python
{
    "old key": "old value",
    "second old key": "second old value",
    "new key": "new value",
}
```

### Normales **FastAPI**

Schreiben Sie zunächst wie gewohnt Ihre ganze **FastAPI**-Anwendung:

```Python hl_lines="1  4  7-9"
{!../../../docs_src/extending_openapi/tutorial001.py!}
```

### Das OpenAPI-Schema generieren

        assert response.status_code == 200, response.text
        assert response.json() == ["OK"]


def test_include_empty():
    # if both include and router.path are empty - it should raise exception
    with pytest.raises(FastAPIError):

=== "Python 3.10+"

    ```Python hl_lines="19"
    {!> ../../../docs_src/separate_openapi_schemas/tutorial001_py310.py!}
    ```

=== "Python 3.9+"

    ```Python hl_lines="21"
    {!> ../../../docs_src/separate_openapi_schemas/tutorial001_py39.py!}
    ```

=== "Python 3.8+"

    ```Python hl_lines="21"
    {!> ../../../docs_src/separate_openapi_schemas/tutorial001.py!}

                },
                "summary": "A",
                "operationId": "a_a_get",
            }
        }
    },
}

client = TestClient(app)


def test_openapi_schema():
    with pytest.raises(ValueError):

class IsProbablyUtf8Test {
  @Test fun isProbablyUtf8() {
    assertThat(Buffer().isProbablyUtf8()).isTrue()
    assertThat(Buffer().writeUtf8("abc").isProbablyUtf8()).isTrue()
    assertThat(Buffer().writeUtf8("new\r\nlines").isProbablyUtf8()).isTrue()
    assertThat(Buffer().writeUtf8("white\t space").isProbablyUtf8()).isTrue()
    assertThat(Buffer().writeByte(0x80).isProbablyUtf8()).isTrue()