matsev

@ControllerAdvice
public class CustomResponseEntityExceptionHandler extends ResponseEntityExceptionHandler {

    @Override
    protected ResponseEntity<Object> handleMethodArgumentNotValid(MethodArgumentNotValidException ex, HttpHeaders headers, HttpStatus status, WebRequest request) {
        List<FieldError> fieldErrors = ex.getBindingResult().getFieldErrors();
        List<ObjectError> globalErrors = ex.getBindingResult().getGlobalErrors();
        List<String> errors = new ArrayList<>(fieldErrors.size() + globalErrors.size());
        String error;
        for (FieldError fieldError : fieldErrors) {

matsev

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("failing-mockito-config.xml")
public class BeanWiringTest {

    @Autowired
    SomeClass someClass;

    @Autowired
    SomeDependency someDependencyMock;

matsev

@XmlRootElement
public class ErrorMessage {

    private List<String> errors;

    public ErrorMessage() {
    }

    public ErrorMessage(List<String> errors) {
        this.errors = errors;

matsev

@Test
public void shouldGetTestUserAsJson() throws Exception {
    mockMvc
            .perform(get("/user/0")
                    .accept(MediaType.APPLICATION_JSON))
            .andExpect(status().isOk())
            .andExpect(content().contentType(MediaType.APPLICATION_JSON))
            .andExpect(jsonPath("name", is("Test User")))
            .andExpect(jsonPath("email", is("test.user@somewhere.com")));
}

matsev

@RequestMapping(method = RequestMethod.POST,
        consumes = {MediaType.APPLICATION_JSON_VALUE, MediaType.APPLICATION_XML_VALUE})
@ResponseStatus(HttpStatus.CREATED)
void create(@RequestBody @Valid User user, HttpServletRequest request, HttpServletResponse response) {
    long userId = userService.create(user);
    String location = ServletUriComponentsBuilder.fromRequestUri(request).path("/{userid}")
            .build()
            .expand(userId).toUriString();
    response.addHeader("Location", location);
}

matsev

public class Example {

    private Delegate delegate;

    Example(Delegate delegate) {
        this.delegate = delegate;
    }

    public void doIt() {
        delegate.execute();

matsev

package com.jayway.example;

public interface Delegate {

    String doSomething();

    String doSomethingElse();
}