如何模拟参数请求单元测试谷歌云功能？

我试图为我的 GCP 功能实施单元测试。我想模拟请求参数来测试我的功能我该怎么做？

这是我的 GCP 功能：

 @Override
    public void service(HttpRequest request, HttpResponse response)
        throws IOException {
        String name = request.getFirstQueryParameter("name").orElse("world");

        try {
            JsonElement requestParsed = gson.fromJson(request.getReader(), JsonElement.class);
            JsonObject requestJson = null;

            if (requestParsed != null && requestParsed.isJsonObject()) {
                requestJson = requestParsed.getAsJsonObject();
            }

            if (requestJson != null && requestJson.has("name")) {
                name = requestJson.get("name").getAsString();
            }
        } catch (JsonParseException e) {
            logger.severe("Error parsing JSON: " + e.getMessage());
        }

        var writer = new PrintWriter(response.getWriter());
        writer.printf("Hello %s!", name);
    }

这是我的测试：

public class HelloHttpTest {

    @Mock private HttpRequest request;
    @Mock private HttpResponse response;

    private BufferedWriter writerOut;
    private StringWriter responseOut;
    private static final Gson gson = new Gson();

    @BeforeEach
    public void beforeTest() throws IOException {
        MockitoAnnotations.initMocks(this);

        BufferedReader reader = new BufferedReader(new StringReader(""));
        when(request.getReader()).thenReturn(reader);

        responseOut = new StringWriter();

        writerOut = new BufferedWriter(responseOut);
        when(response.getWriter()).thenReturn(writerOut);
    }

    @Test
    public void helloHttp_noParamsGet() throws IOException {
        new HelloHttp().service(request, response);
        writerOut.flush();
        Assertions.assertEquals(responseOut.toString(),"Hello world!");
    }
}

我想测试这条线name = requestJson.get("name").getAsString();是否有效。如何使用nameparams发出虚假请求并且我的 GCP 会得到它？