ControllerTest.java

@RunWith(SpringRunner.class)
@SpringBootTest(classes = MyApp.class)
public class MyRestControllerTest {
    @Autowired
    private MappingJackson2HttpMessageConverter jacksonMessageConverter;    

    @Autowired
    private PageableHandlerMethodArgumentResolver pageableArgumentResolver; 

    @Autowired
    private ExceptionTranslator exceptionTranslator; 
  
    @Autowired
    private WebApplicationContext context;

    private MockMvc restMyRestControllerMockMvc;

    @Before
    public void setup() {
        this.restMyRestControllerMockMvc = MockMvcBuilders.webAppContextSetup(context)
                .setCustomArgumentResolvers(pageableArgumentResolver).setControllerAdvice(exceptionTranslator)
                .setConversionService(createFormattingConversionService()).setMessageConverters(jacksonMessageConverter)
                .build();
    }