@Test
public void testToVXResourceForPolicyNull(){

        RangerPolicy policy = null;
        RangerService rangerService = new RangerService();
        rangerService.setName("hive");
        rangerService.setType("hive");
        VXResource vXResource = serviceUtil.toVXResource(policy, rangerService);
        Assert.assertNull(vXResource);
}