@Test
public void testValidateCertRequestHostnamesWithInvalidInstanceIdURI() {

    HashMap<String, String> attributes = new HashMap<>();
    attributes.put("sanDNS", "api.athenz.athenz.cloud");
    attributes.put("sanURI", "spiffe://athenz/sa/cloud,athenz://instanceid/zts");
    StringBuilder id = new StringBuilder(256);
    assertFalse(InstanceUtils.validateCertRequestSanDnsNames(attributes, "athenz", "api", "athenz.cloud", id));
}