headers={"content-type": "application/json"},
        content="{some broken json}",
    )
    assert response.status_code == 422, response.text
    assert response.json() == IsDict(
        {
            "detail": [
                {
                    "type": "json_invalid",
                    "loc": ["body", 1],
                    "msg": "JSON decode error",
                    "input": {},

        headers={"content-type": "application/json"},
        content="{some broken json}",
    )
    assert response.status_code == 422, response.text
    assert response.json() == IsDict(
        {
            "detail": [
                {
                    "type": "json_invalid",
                    "loc": ["body", 1],
                    "msg": "JSON decode error",
                    "input": {},

    assert response.json() == "foo bar"


def test_query_param_query_50():
    response = client.get("/query/param?query=50")
    assert response.status_code == 200
    assert response.json() == "foo bar 50"


def test_query_param_required():
    response = client.get("/query/param-required")
    assert response.status_code == 422
    assert response.json() == IsDict(
        {

    assert response.status_code == 400, response.text
    assert response.json() == {"detail": "X-Token header invalid"}


def test_openapi_schema(client: TestClient):
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == {
        "openapi": "3.1.0",
        "info": {"title": "FastAPI", "version": "0.1.0"},
        "paths": {

    assert response.status_code == 400, response.text
    assert response.json() == {"detail": "X-Token header invalid"}


@needs_py39
def test_openapi_schema(client: TestClient):
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == {
        "openapi": "3.1.0",
        "info": {"title": "FastAPI", "version": "0.1.0"},

    assert response.json() == {"name": "Foo"}


def test_read_model():
    response = client.get("/model")
    assert response.status_code == 200, response.text
    assert response.json() == {"name": "Foo"}


def test_read_list():
    response = client.get("/list")
    assert response.status_code == 200, response.text
    assert response.json() == [
        {"name": "Foo"},

    response = client.post("/token", data=data)
    content = response.json()
    access_token = content.get("access_token")
    return access_token


def test_login():
    response = client.post("/token", data={"username": "johndoe", "password": "secret"})
    assert response.status_code == 200, response.text
    content = response.json()
    assert "access_token" in content
    assert content["token_type"] == "bearer"

                    "strict": strict,
                    "json_schema_extra": current_json_schema_extra,
                }
            )
            kwargs["pattern"] = pattern or regex
        else:
            kwargs["regex"] = pattern or regex
            kwargs.update(**current_json_schema_extra)
        use_kwargs = {k: v for k, v in kwargs.items() if v is not _Unset}

    assert response.json() == {
        "name": "Baz",
        "description": None,
        "price": 50.2,
        "tax": 10.5,
        "tags": [],
    }


@needs_py39
def test_put(client: TestClient):
    response = client.put(
        "/items/bar", json={"name": "Barz", "price": 3, "description": None}
    )
    assert response.json() == {
        "name": "Barz",

Тогда, подразумеваются атрибуты JSON, их типы данных и т.п.

#### OpenAPI и JSON Schema

OpenAPI описывает схему API. Эта схема содержит определения (или "схемы") данных, отправляемых и получаемых API. Для описания структуры данных в JSON используется стандарт **JSON Schema**.

#### Рассмотрим `openapi.json`