from dirty_equals import IsDict, IsOneOf
from fastapi.testclient import TestClient

from ...utils import needs_py39


@pytest.fixture(name="client")
def get_client():
    from docs_src.security.tutorial005_py39 import app

    client = TestClient(app)
    return client


def get_access_token(
    *, username="johndoe", password="secret", scope=None, client: TestClient
):
    data = {"username": username, "password": password}

)

app = FastAPI()


def verify_password(plain_password, hashed_password):
    return pwd_context.verify(plain_password, hashed_password)


def get_password_hash(password):
    return pwd_context.hash(password)


def get_user(db, username: str):
    if username in db:
        user_dict = db[username]
        return UserInDB(**user_dict)


def authenticate_user(fake_db, username: str, password: str):

from .main import app

client = TestClient(app)


def test_read_item():
    response = client.get("/items/foo", headers={"X-Token": "coneofsilence"})
    assert response.status_code == 200
    assert response.json() == {
        "id": "foo",
        "title": "Foo",
        "description": "There goes my hero",
    }


def test_read_item_bad_token():

class User(BaseModel):
    username: str


def get_current_user(oauth_header: Optional[str] = Security(reusable_oauth2)):
    if oauth_header is None:
        return None
    user = User(username=oauth_header)
    return user


@app.post("/login")
def login(form_data: OAuth2PasswordRequestFormStrict = Depends()):
    return form_data


@app.get("/users/me")

それでも、どちらの状況でも、**FastAPI**が過去のフレームワークよりも (またはそれに匹敵するほど) [高速になる](index.md#_10){.internal-link target=_blank}可能性があります。

### 依存関係

依存関係についても同様です。依存関係が `async def` ではなく標準の `def` 関数である場合、外部スレッドプールで実行されます。

### サブ依存関係

(関数定義のパラメーターとして) 相互に必要な複数の依存関係とサブ依存関係を設定できます。一部は `async def` で作成され、他の一部は通常の `def` で作成されます。それでも動作し、通常の `def`で作成されたものは、「awaitされる」代わりに (スレッドプールから) 外部スレッドで呼び出されます。

@pytest.fixture(name="client")
def get_client():
    from docs_src.request_forms.tutorial001 import app

    client = TestClient(app)
    return client


def test_post_body_form(client: TestClient):
    response = client.post("/login/", data={"username": "Foo", "password": "secret"})
    assert response.status_code == 200
    assert response.json() == {"username": "Foo"}

from fastapi import FastAPI
from fastapi.testclient import TestClient


@pytest.fixture(name="app")
def get_app():
    from docs_src.request_forms_and_files.tutorial001_an import app

    return app


@pytest.fixture(name="client")
def get_client(app: FastAPI):
    client = TestClient(app)
    return client


def test_post_form_no_body(client: TestClient):
    response = client.post("/files/")

import pytest
from dirty_equals import IsDict
from fastapi.testclient import TestClient


@pytest.fixture(name="client")
def get_client():
    from docs_src.body_multiple_params.tutorial001_an import app

    client = TestClient(app)
    return client


def test_post_body_q_bar_content(client: TestClient):
    response = client.put("/items/5?q=bar", json={"name": "Foo", "price": 50.5})
    assert response.status_code == 200

    assert response.json() == {"filenames": ["test.txt", "test2.txt"]}


def test_get_root():
    client = TestClient(app)
    response = client.get("/")
    assert response.status_code == 200, response.text
    assert b"<form" in response.content


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

## HTTPX

Auch wenn Ihre **FastAPI**-Anwendung normale `def`-Funktionen anstelle von `async def` verwendet, handelt es sich darunter immer noch um eine `async`hrone Anwendung.