/**
* Assert a field error code for a model attribute using exact String match.
* @since 4.1
*/
public ResultMatcher attributeHasFieldErrorCode(final String name, final String fieldName, final String error) {
return new ResultMatcher() {
public void match(MvcResult mvcResult) throws Exception {
ModelAndView mav = getModelAndView(mvcResult);
BindingResult result = getBindingResult(mav, name);
assertTrue("No errors for attribute: [" + name + "]", result.hasErrors());