@Test
public void testLoadAuditRefValidator(){

    System.setProperty(ZMSConsts.ZMS_PROP_AUDIT_REF_VALIDATOR_FACTORY_CLASS, "com.yahoo.athenz.zms.audit.MockAuditReferenceValidatorFactoryImpl");
    zms.loadAuditRefValidator();
    assertNotNull(zms.auditReferenceValidator);
    System.clearProperty(ZMSConsts.ZMS_PROP_AUDIT_REF_VALIDATOR_FACTORY_CLASS);
}