@Test
 public void passwordIsValidated() throws Exception {
   endpoints.setSecurityContextAccessor(mockSecurityContext(joel));
   PasswordValidator mockPasswordValidator = mock(PasswordValidator.class);
   endpoints.setPasswordValidator(mockPasswordValidator);
   PasswordChangeRequest change = new PasswordChangeRequest();
   change.setOldPassword("password");
   change.setPassword("newpassword");
   endpoints.changePassword(joel.getId(), change);
   verify(mockPasswordValidator).validate("newpassword");
 }