}

  @Test @Disabled
  fun request() {
    val request: Request = Request.Builder().build()
    val url: HttpUrl = request.url()
    val method: String = request.method()
    val headers: Headers = request.headers()
    val body: RequestBody? = request.body()
    val cacheControl: CacheControl = request.cacheControl()
  }

  @Test @Disabled
  fun response() {

        assertNotNull(builder);

        DefaultModelBuildingRequest request = new DefaultModelBuildingRequest();
        request.setProcessPlugins(true);
        request.setPomFile(getPom("simple"));

        ModelBuildingResult result = builder.build(request);
        assertNotNull(result);
        assertNotNull(result.getEffectiveModel());

これは、FastAPI に直接インポート/インクルードされるため、`fastapi` からインポートできる上に、`starlette.background`から別の `BackgroundTask` (末尾に `s` がない) を誤ってインポートすることを回避できます。

`BackgroundTasks`のみを使用することで (`BackgroundTask` ではなく)、`Request` オブジェクトを直接使用する場合と同様に、それを *path operations 関数* パラメーターとして使用し、**FastAPI** に残りの処理を任せることができます。

それでも、FastAPI で `BackgroundTask` を単独で使用することは可能ですが、コード内でオブジェクトを作成し、それを含むStarlette `Response` を返す必要があります。

from fastapi import APIRouter, FastAPI, Request, Response
from fastapi.routing import APIRoute


class TimedRoute(APIRoute):
    def get_route_handler(self) -> Callable:
        original_route_handler = super().get_route_handler()

        async def custom_route_handler(request: Request) -> Response:
            before = time.time()
            response: Response = await original_route_handler(request)
            duration = time.time() - before

        .build(),
    )

    // Make a request from client to server. It should succeed certificate checks (unfortunately the
    // rogue CA is trusted) but it should fail certificate pinning.
    val request =
      Request
        .Builder()
        .url(server.url("/"))
        .build()
    val call = client.newCall(request)
    assertFailsWith<SSLPeerUnverifiedException> {
      call.execute()

        if (request.getUserProperties().containsKey(REVISION_PROPERTY)) {
            modelProperties.put(REVISION_PROPERTY, request.getUserProperties().get(REVISION_PROPERTY));
        }
        if (request.getUserProperties().containsKey(CHANGELIST_PROPERTY)) {
            modelProperties.put(CHANGELIST_PROPERTY, request.getUserProperties().get(CHANGELIST_PROPERTY));
        }

            scheme.authenticate(credentials, (request, consumer) -> {

                // request header
                for (final Header header : requestHeaderList) {
                    request.addHeader(header);
                }

                HttpEntity httpEntity = null;
                try {
                    final HttpResponse response = closeableHttpClient.execute(request, new BasicHttpContext(httpClientContext));

    /**
     * Processes the CORS request by setting appropriate headers.
     *
     * @param origin the origin of the request
     * @param request the servlet request
     * @param response the servlet response
     */
    public abstract void process(String origin, ServletRequest request, ServletResponse response);

    boolean isValidProperty(String property);

    /**
     * This method is responsible for examining the request and possibly overwrite of the valid properties in the model
     *
     * @param modelProperties
     * @param request
     */
    void overwriteModelProperties(Properties modelProperties, ModelBuildingRequest request);

    }

    @Test
    void testGetNext() {
        // Test case for getNext method
        Request nextRequest = mock(Request.class); // Mock a chained request
        when(mockRequest.getNext()).thenReturn(nextRequest);

        Request actualNextRequest = mockRequest.getNext();

        assertEquals(nextRequest, actualNextRequest, "Next request should match the mocked object.");
        verify(mockRequest, times(1)).getNext();
    }