我正在尝试在一个javamaven项目（而不是springboot项目）中编写junit 5代码，它调用API并提取响应并创建文件。但是当我试图模拟API调用时，junit仍然调用实际的API，这不是我们想要的行为。有人可以帮助确定这里的问题吗？
我按照这个链接写下面的单元测试How to mock HttpClient's send method in junit 5?
实际服务代码-

public class MyService {

    public void create(String apiHost, String firstPage) {
        HttpClient httpClient = HttpClient.newBuilder()
                .version(HttpClient.Version.HTTP_2)
                .connectTimeout(Duration.ofSeconds(30))
                .build();
        HttpRequest httpRequest = getHttpRequest(apiHost, firstPage);
 
        MyResponse myResponse = invokeApi(httpClient, httpRequest);
        List<ResponseData> responseDataList = new ArrayList<>(myResponse.getData());
        while (null != myResponse.getLinks().getNext()) {

            myResponse = invokeApi(httpClient, getHttpRequest(apiHost, invokeApi.getLinks().getNext()));
            locationDetailsList.addAll(invokeApi.getData());
        }

        createFile(fileName, responseDataList);
    }

    private HttpRequest getHttpRequest(String apiHost, String pageUri) {
        return HttpRequest.newBuilder()
                .header("Content-Type", "application/json")
                .GET()
                .uri(URI.create(apiHost + pageUri))
                .build();
    }

    @SneakyThrows
    MyResponse invokeApi(HttpClient httpClient, HttpRequest httpRequest) {
        HttpResponse<Supplier<MyResponse>> result = httpClient.send(httpRequest, new JsonBodyHandler<>(MyResponse.class));
        return result.body().get();
    }

    @SneakyThrows
    void createFile(String fileName, List<ResponseData> responseDataList) {
        Path filePath = Paths.get("test/path" + fileName);
        Files.createFile(filePath);
        Files.writeString(filePath, header + System.lineSeparator(), StandardOpenOption.APPEND);
        for (ResponseData responseData : responseDataList) {
            Files.writeString(filePath, responseData + System.lineSeparator(), StandardOpenOption.APPEND);
        }
    }

第5号代码-

class MyServiceTests {

    @InjectMocks
    private MyService myService;

    @Mock
    private HttpClient httpClient;
    @Mock
    HttpResponse<Object> httpResponse;

    @Mock
    private HttpRequest request;

    @BeforeEach
    void setUp() {
        initMocks(this);
        httpClient = mock(HttpClient.class);
        httpResponse = mock(HttpResponse.class);
    }

    @Test
    void testSendMessage() throws Exception {
        MyResponse myResponse=new MyResponse();

        when(httpClient.send(any(),any())).thenReturn(httpResponse);
        when(myService.invokeApi(httpClient,request)).thenReturn(myResponse);
        myService.create("https://test.com", "/v1/test?page_size=100");
        verify(httpClient).send(request, HttpResponse.BodyHandlers.ofString());
    }
}

在上面的junit代码中，当执行“myService.createmyMnt”时，它实际上尝试调用https://test.com，而不是模拟调用。