@Test
public void test_areAppRoleInputsValid_invalid()  {

    String [] policies = {"default"};
    ReflectionTestUtils.setField(ControllerUtil.class, "approleAllowedCharacters", "[a-z0-9_-]+");
    AppRole appRole = new AppRole("", policies, true, 1, 100, 0);
    boolean valid = ControllerUtil.areAppRoleInputsValid(appRole);
    assertFalse(valid);
}