{* ../../docs_src/app_testing/tutorial002_py39.py hl[27:31] *}

/// note

For more details, check Starlette's documentation for <a href="https://www.starlette.dev/testclient/#testing-websocket-sessions" class="external-link" target="_blank">testing WebSockets</a>.

FastAPI 是站在以下巨人的肩膀上：

- <a href="https://www.starlette.dev/" class="external-link" target="_blank">Starlette</a> 負責網頁的部分
- <a href="https://docs.pydantic.dev/" class="external-link" target="_blank">Pydantic</a> 負責資料的部分

## 安裝

<div class="termy">

```console
$ pip install fastapi

---> 100%
```

</div>

{* ../../docs_src/app_testing/tutorial002_py39.py hl[27:31] *}

/// note | Hinweis

Weitere Informationen finden Sie in Starlettes Dokumentation zum <a href="https://www.starlette.dev/testclient/#testing-websocket-sessions" class="external-link" target="_blank">Testen von WebSockets</a>.

Alles auf eine Weise, die allen Entwicklern das beste Entwicklungserlebnis bot.

## Anforderungen { #requirements }

Nachdem ich mehrere Alternativen getestet hatte, entschied ich, dass ich <a href="https://docs.pydantic.dev/" class="external-link" target="_blank">**Pydantic**</a> wegen seiner Vorteile verwenden würde.

client = TestClient(app)


def test_redirect_status_code():
    response = client.get("/pydantic", follow_redirects=False)
    assert response.status_code == 302
    assert response.headers["location"] == "https://docs.pydantic.dev/"


def test_openapi_schema():
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == {
        "openapi": "3.1.0",

* <a href="https://www.starlette.dev/" class="external-link" target="_blank">Starlette</a> 负责 web 部分。
* <a href="https://docs.pydantic.dev/" class="external-link" target="_blank">Pydantic</a> 负责数据部分。

## 安装

<div class="termy">

```console
$ pip install fastapi

---> 100%
```

</div>

    echo "${cmd} does not exist."
    exit 1
  fi
}

# Get ImageMagick command (magick for v7, convert for v6)
get_imagemagick_cmd() {
  if command -v magick >/dev/null 2>&1; then
    echo "magick"
  elif command -v convert >/dev/null 2>&1; then
    echo "convert"
  else
    echo ""
  fi
}

if [[ x"$HOME" = "x/root" ]] || [[ x"$HOME" = "x/var/root" ]] ; then
  HOME=/var/lib/fess
fi

`TestClient`를 사용하여 WebSocket을 테스트할 수 있습니다.

이를 위해 `with` 문에서 `TestClient`를 사용하여 WebSocket에 연결합니다:

{* ../../docs_src/app_testing/tutorial002.py hl[27:31] *}

/// note | 참고

자세한 내용은 Starlette의 <a href="https://www.starlette.dev/testclient/#testing-websocket-sessions" class="external-link" target="_blank"> WebSocket 테스트</a>에 관한 설명서를 참고하시길 바랍니다.

{* ../../docs_src/first_steps/tutorial001_py39.py *}

Скопируйте это в файл `main.py`.

Запустите сервер в режиме реального времени:

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> dev <u style="text-decoration-style:solid">main.py</u>

  <span style="background-color:#009485"><font color="#D3D7CF"> FastAPI </font></span>  Starting development server 🚀

Так как под капотом **FastAPI** — это **Starlette** с дополнительным слоем инструментов, вы можете при необходимости напрямую использовать объект <a href="https://www.starlette.dev/requests/" class="external-link" target="_blank">`Request`</a> из Starlette.