@Test
       public void testIsValidSecurityZoneForDeleteWithWrongNameReturnFalse() throws Exception{

               RangerSecurityZone suppliedSecurityZone = getRangerSecurityZone();
	Mockito.when(_store.getSecurityZone(suppliedSecurityZone.getName())).thenReturn(null);
	List<ValidationFailureDetails> failures = new ArrayList<ValidationFailureDetails>();
	boolean isValid =	rangerSecurityZoneValidator.isValid(suppliedSecurityZone.getName(),
				RangerValidator.Action.DELETE, failures);
	Assert.assertFalse(isValid);
}