from fastapi.testclient import TestClient

from docs_src.middleware.tutorial001_py39 import app

client = TestClient(app)


def test_response_headers():
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert "X-Process-Time" in response.headers


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

from unittest.mock import patch

from docs_src.python_types.tutorial008_py39 import process_items


def test_process_items():
    with patch("builtins.print") as mock_print:
        process_items({"a": 1.0, "b": 2.5})

    assert mock_print.call_count == 4
    call_args = [arg.args for arg in mock_print.call_args_list]
    assert call_args == [
        ("a",),
        (1.0,),
        ("b",),
        (2.5,),

from fastapi.testclient import TestClient

from docs_src.response_headers.tutorial001_py39 import app

client = TestClient(app)


def test_path_operation():
    response = client.get("/headers/")
    assert response.status_code == 200, response.text
    assert response.json() == {"message": "Hello World"}
    assert response.headers["X-Cat-Dog"] == "alone in the world"

import importlib
from types import ModuleType

import pytest
from fastapi.testclient import TestClient


@pytest.fixture(
    name="mod",
    params=[
        pytest.param("tutorial003_py39"),
    ],
)
def get_mod(request: pytest.FixtureRequest):
    mod = importlib.import_module(f"docs_src.websockets.{request.param}")

    return mod


@pytest.fixture(name="html")
def get_html(mod: ModuleType):
    return mod.html

{* ../../docs_src/dependencies/tutorial007_py39.py hl[2:4] *}

Der ge`yield`ete Wert ist das, was in *Pfadoperationen* und andere Abhängigkeiten eingefügt wird:

{* ../../docs_src/dependencies/tutorial007_py39.py hl[4] *}

Der auf die `yield`-Anweisung folgende Code wird nach der Response ausgeführt:

{* ../../docs_src/dependencies/tutorial007_py39.py hl[5:6] *}

/// tip | Tipp

from fastapi.testclient import TestClient

from docs_src.configure_swagger_ui.tutorial001_py39 import app

client = TestClient(app)


def test_swagger_ui():
    response = client.get("/docs")
    assert response.status_code == 200, response.text
    assert '"syntaxHighlight": false' in response.text, (
        "syntaxHighlight should be included and converted to JSON"
    )
    assert '"dom_id": "#swagger-ui"' in response.text, (

from fastapi.testclient import TestClient

from docs_src.sub_applications.tutorial001_py39 import app

client = TestClient(app)

openapi_schema_main = {
    "openapi": "3.1.0",
    "info": {"title": "FastAPI", "version": "0.1.0"},
    "paths": {
        "/app": {
            "get": {
                "responses": {
                    "200": {
                        "description": "Successful Response",

from fastapi.testclient import TestClient

from docs_src.using_request_directly.tutorial001_py39 import app

client = TestClient(app)


def test_path_operation():
    response = client.get("/items/foo")
    assert response.status_code == 200
    assert response.json() == {"client_host": "testclient", "item_id": "foo"}


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

    * Então ela retorna a `response` gerada pela *operação de rota* correspondente.
* Você pode então modificar ainda mais o `response` antes de retorná-lo.

{* ../../docs_src/middleware/tutorial001_py39.py hl[8:9,11,14] *}

/// tip | Dica

    * Then it returns the `response` generated by the corresponding *path operation*.
* You can then further modify the `response` before returning it.

{* ../../docs_src/middleware/tutorial001_py39.py hl[8:9,11,14] *}

/// tip

Keep in mind that custom proprietary headers can be added <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers" class="external-link" target="_blank">using the `X-` prefix</a>.