private static String servicesXmlWithAccessControl() {
        return "<container version='1.0'>" +
                "  <http> <server port='" + 0 +"' id='foo'/> " +
                "    <filtering>" +
                "      <access-control domain='foo' />" +
                "    </filtering>" +
                "  </http>" +
               "  <accesslog type=\"disabled\" />" +
               "</container>";
    }
Tests that an application with search chains referencing a content cluster can be constructed.
application/src/test/java/com/yahoo/application/ApplicationTest.java