问如何使用Mockito和Spring Boot使用okhttp编写单元测试

EN

@Component
public class HStatus {

    @Autowired
    private OkHttpClient httpClient;

    public int HCheck() throws URISyntaxException, IOException {

        String url = new URIBuilder("Some URL").build().toString();

        Request request = new Request.Builder().url(url).get().build();

        try (Response resp = httpClient.newCall(request).execute()) {

            return resp.code();

        }

    }

@RunWith(MockitoJUnitRunner.class)
public class HStatusTest {
    
    @InjectMocks
    private HStatus hStatus;

    @Mock
    private OkHttpClient httpClient;


    @Test
    public void TestHCheck_Should_Return_200_StatusCode() throws URISyntaxException, IOException {

        Response resp = new Response.Builder()
                .request(new Request.Builder().url("SOME URL").build())
                .protocol(Protocol.HTTP_1_1)
                .code(200).message("")
                .build();

        Mockito.when(httpClient.newCall(ArgumentMatchers.any()).execute).thenReturn(resp);

// Getting NullPointer at this call -> httpClient.newCall(ArgumentMatchers.any()).execute

        int statusCode = hStatus.HCheck();
        
        assertEquals(200, statusCode);

    }
}