from fastapi.testclient import TestClient

from docs_src.metadata.tutorial004_py39 import app

client = TestClient(app)


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


def test_openapi_schema():
    response = client.get("/openapi.json")

import importlib

import pytest
from fastapi.testclient import TestClient


@pytest.fixture(
    name="client",
    params=[
        pytest.param("tutorial004_py39"),
    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(f"docs_src.extra_models.{request.param}")

    client = TestClient(mod.app)
    return client


def test_get_items(client: TestClient):

from unittest.mock import patch

from docs_src.python_types.tutorial006_py39 import process_items


def test_process_items():
    with patch("builtins.print") as mock_print:
        process_items(["item_a", "item_b", "item_c"])

    assert mock_print.call_count == 3
    call_args = [arg.args for arg in mock_print.call_args_list]
    assert call_args == [
        ("item_a",),
        ("item_b",),
        ("item_c",),

import pytest


def test_main():
    with pytest.warns(DeprecationWarning):
        from docs_src.app_testing.tutorial003_py39 import test_read_items

from docs_src.app_testing.tutorial002_py39 import test_read_main, test_websocket


def test_main():
    test_read_main()


def test_ws():

import importlib

import pytest
from fastapi.testclient import TestClient

from ...utils import needs_py310


@pytest.fixture(
    name="client",
    params=[
        pytest.param("tutorial011_py39"),
        pytest.param("tutorial011_py310", marks=needs_py310),
        pytest.param("tutorial011_an_py39"),
        pytest.param("tutorial011_an_py310", marks=needs_py310),
    ],
)
def get_client(request: pytest.FixtureRequest):

{* ../../docs_src/background_tasks/tutorial001_py39.py hl[6:9] *}

## Den Hintergrundtask hinzufügen { #add-the-background-task }

Übergeben Sie innerhalb Ihrer *Pfadoperation-Funktion* Ihre Taskfunktion mit der Methode `.add_task()` an das *Hintergrundtasks*-Objekt:

{* ../../docs_src/background_tasks/tutorial001_py39.py hl[14] *}

`.add_task()` erhält als Argumente:

# Testing WebSockets { #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:

{* ../../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>.

from fastapi.testclient import TestClient

from docs_src.advanced_middleware.tutorial002_py39 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

Sie können den schon bekannten `TestClient` zum Testen von WebSockets verwenden.

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

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

/// note | Hinweis