from fastapi.testclient import TestClient

from .main import app

client = TestClient(app)


def test_text_get():
    response = client.get("/text")
    assert response.status_code == 200, response.text
    assert response.json() == "Hello World"


def test_nonexistent():
    response = client.get("/nonexistent")
    assert response.status_code == 404, response.text
    assert response.json() == {"detail": "Not Found"}

* «the response» (what the server sends back to the client): «die Response»
* «the return type»: «der Rückgabetyp»
* «the return value»: «der Rückgabewert»
* «the startup» (the event of the app): «der Startup»
* «the shutdown» (the event of the app): «der Shutdown»
* «the startup event»: «das Startup-Event»
* «the shutdown event»: «das Shutdown-Event»
* «the startup» (of the server): «das Hochfahren»

                    "API Compatibility Report",
                    "$HIDDEN_ARTIFACT_DESTINATION/report-architecture-test-binary-compatibility-report.html",
                )
                buildReportTab("Incubating APIs Report", "incubation-reports/all-incubating.html")
            }
            if (stage.performanceTests.isNotEmpty()) {
                buildReportTab("Performance", "performance-test-results.zip!report/index.html")
            }

そうする場合は、すべての *path operation* を追加した後に行う必要があります。

{* ../../docs_src/path_operation_advanced_configuration/tutorial002.py hl[2,12:21,24] *}

/// tip | 豆知識

`app.openapi()` を手動でコールする場合、その前に`operationId`を更新する必要があります。

///

/// warning | 注意

この方法をとる場合、各 *path operation関数* が一意な名前である必要があります。

それらが異なるモジュール (Pythonファイル) にあるとしてもです。

///

## OpenAPIから除外する

### 子应用

接下来，创建子应用及其*路径操作*。

子应用只是另一个标准 FastAPI 应用，但这个应用是被**挂载**的应用：

{* ../../docs_src/sub_applications/tutorial001.py hl[11,14:16] *}

### 挂载子应用

在顶层应用 `app` 中，挂载子应用 `subapi`。

本例的子应用挂载在 `/subapi` 路径下：

{* ../../docs_src/sub_applications/tutorial001.py hl[11,19] *}

### 查看文档

如果主文件是 `main.py`，则用以下 `uvicorn` 命令运行主应用：

<div class="termy">

```console

    ],
)
def get_client(request: pytest.FixtureRequest):
    mod = importlib.import_module(f"docs_src.body_nested_models.{request.param}")

    client = TestClient(mod.app)
    return client


def test_put_all(client: TestClient):
    response = client.put(
        "/items/123",
        json={
            "name": "Foo",
            "description": "A very nice Item",

{* ../../docs_src/sub_applications/tutorial001_py39.py hl[11, 14:16] *}

### Die Unteranwendung mounten { #mount-the-sub-application }

Mounten Sie in Ihrer Top-Level-Anwendung `app` die Unteranwendung `subapi`.

In diesem Fall wird sie im Pfad `/subapi` gemountet:

{* ../../docs_src/sub_applications/tutorial001_py39.py hl[11, 19] *}

* `description`: The description of your API, this can include markdown and will be shown in the docs.
* `routes`: A list of routes, these are each of the registered *path operations*. They are taken from `app.routes`.

/// info

The parameter `summary` is available in OpenAPI 3.1.0 and above, supported by FastAPI 0.99.0 and above.

///

## Overriding the defaults { #overriding-the-defaults }

import pytest
from fastapi.testclient import TestClient

from .main import app

client = TestClient(app)


@pytest.mark.parametrize(
    "path,expected_status,expected_response",
    [
        ("/api_route", 200, {"message": "Hello World"}),
        ("/non_decorated_route", 200, {"message": "Hello World"}),
        ("/nonexistent", 404, {"detail": "Not Found"}),
    ],
)
def test_get_path(path, expected_status, expected_response):

Pero si necesitas acceder a variables y objetos de la misma app de **FastAPI**, o necesitas realizar pequeñas tareas en segundo plano (como enviar una notificación por email), simplemente puedes usar `BackgroundTasks`.

## Resumen { #recap }