更改TestNG，NullPointerException上的JUnit

Question

我尝试将项目中的测试框架从JUnit改为TestNG。测试控制器代码正常工作：

@RunWith(SpringRunner.class)
@ContextConfiguration(classes = {DependencyReportController.class, DependencyReportControllerTest.SecurityPermitAllConfig.class})
@WebMvcTest(controllers = DependencyReportController.class)

public class DependencyReportControllerTest {
    @Autowired
    private MockMvc mockMvc;

    @MockBean
    private DependencyDifferenceService differenceService;

    @Before
    public void before() {
        MockitoAnnotations.initMocks(this);
    }

    @Test
    public void test() throws Exception {
        ServiceDependenciesReport report = new ServiceDependenciesReport();
        report.setElapsed("elapsed");
        report.setSuccess(true);

        List<ByService> byServices = new ArrayList<>();
        byServices.add(new ByService("service1", new ArrayList<>()));
        byServices.add(new ByService("service2", new ArrayList<>()));
        byServices.add(new ByService("service3", new ArrayList<>()));

        report.setByServices(byServices);
        when(differenceService.getAllDiffs()).thenReturn(report);

        this.mockMvc.perform(get("dependencies/difference")).andExpect(status().isOk())
            .andExpect(content().contentTypeCompatibleWith(MediaType.APPLICATION_JSON_UTF8_VALUE))
            .andExpect(jsonPath("$.success", is(true)))
            .andExpect(jsonPath("$.byServices", hasSize(1)))
            .andExpect(jsonPath("$.byServices[0].serviceName", is("service1")))
    }

    @Configuration
    public static class SecurityPermitAllConfig extends WebSecurityConfigurerAdapter {

        @Override
        protected void configure(HttpSecurity http) throws Exception {
            http.authorizeRequests().anyRequest().permitAll()
                .and().csrf().disable();
        }
    }    
}

正如我所知，在testNg中，我应该从AbstractTestNGSpringContextTest扩展测试类，并用@RunWith（SpringRunner.class）删除行：

    @ContextConfiguration(classes = {DependencyReportController.class, DependencyReportControllerTest.SecurityPermitAllConfig.class})
    @WebMvcTest(controllers = DependencyReportController.class)

        public class DependencyReportControllerTest extends AbstractTestNGSpringContextTest {
            @Autowired
            private MockMvc mockMvc;

            @MockBean
            private DependencyDifferenceService differenceService;

            @BeforeTest
            public void before() {
                MockitoAnnotations.initMocks(this);
            }
...
...

我做错了什么？

Answer 1

添加批注@TestExecutionListeners(MockitoTestExecutionListener.class)