# Testing WebSockets

You can use the same `TestClient` to test WebSockets.

For this, you use the `TestClient` in a `with` statement, connecting to the WebSocket:

```Python hl_lines="27-31"
{!../../docs_src/app_testing/tutorial002.py!}
```

/// note

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

from fastapi.testclient import TestClient

from docs_src.advanced_middleware.tutorial002 import app


def test_middleware():
    client = TestClient(app, base_url="http://example.com")
    response = client.get("/")
    assert response.status_code == 200, response.text
    client = TestClient(app, base_url="http://subdomain.example.com")
    response = client.get("/")
    assert response.status_code == 200, response.text

WebSockets testi yapmak için `TestClient`'ı kullanabilirsiniz.

Bu işlem için, `TestClient`'ı bir `with` ifadesinde kullanarak WebSocket'e bağlanabilirsiniz:

```Python hl_lines="27-31"
{!../../docs_src/app_testing/tutorial002.py!}
```

/// note | "Not"

Daha fazla detay için Starlette'in <a href="https://www.starlette.io/staticfiles/" class="external-link" target="_blank">Websockets'i Test Etmek</a> dokümantasyonunu inceleyin.

Dazu verwenden Sie den `TestClient` in einer `with`-Anweisung, eine Verbindung zum WebSocket herstellend:

```Python hl_lines="27-31"
{!../../docs_src/app_testing/tutorial002.py!}
```

/// note | "Hinweis"

from fastapi.testclient import TestClient

from docs_src.custom_request_and_route.tutorial003 import app

client = TestClient(app)


def test_get():
    response = client.get("/")
    assert response.json() == {"message": "Not timed"}
    assert "X-Response-Time" not in response.headers


def test_get_timed():
    response = client.get("/timed")
    assert response.json() == {"message": "It's the time of my life"}

from fastapi.testclient import TestClient

from docs_src.path_operation_advanced_configuration.tutorial005 import app

client = TestClient(app)


def test_get():
    response = client.get("/items/")
    assert response.status_code == 200, response.text


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

/// tip | "Tipp"

Bevorzugen Sie die `Annotated`-Version, falls möglich.

///

```Python hl_lines="2  4  8  12  46  64  105  107-115  121-124  128-134  139  155"
{!> ../../docs_src/security/tutorial005.py!}
```

////

Sehen wir uns diese Änderungen nun Schritt für Schritt an.

## OAuth2-Sicherheitsschema

from fastapi.responses import PlainTextResponse
from fastapi.testclient import TestClient

from docs_src.advanced_middleware.tutorial003 import app


@app.get("/large")
async def large():
    return PlainTextResponse("x" * 4000, status_code=200)


client = TestClient(app)


def test_middleware():
    response = client.get("/large", headers={"accept-encoding": "gzip"})
    assert response.status_code == 200, response.text

```

////

//// tab | Python 3.8+ non-Annotated

/// tip | Dica

Prefira usar a versão `Annotated`, se possível.

///

```Python hl_lines="4  76"
{!> ../../docs_src/security/tutorial003.py!}
```

////

`OAuth2PasswordRequestForm` é uma dependência de classe que declara um corpo de formulário com:

* O `username`.
* A `password`.

from fastapi.testclient import TestClient

from docs_src.custom_response.tutorial001b import app

client = TestClient(app)


def test_get_custom_response():
    response = client.get("/items/")
    assert response.status_code == 200, response.text
    assert response.json() == [{"item_id": "Foo"}]


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