private void createClusterWithProcessingAndSearchChains() {
        Element clusterElem = DomBuilderTest.parse(
                "<container id='default' version='1.0'>" +
                        "  <search>" +
                        "    <chain id='default'>" +
                        "      <searcher id='testSearcher' />" +
                        "    </chain>" +
                        "  </search>" +
                        "  <processing>" +
                        "    <chain id='default'>" +
                        "      <processor id='testProcessor'/>" +
                        "    </chain>" +
                        "  </processing>" +
                        nodesXml +
                        " </container>");

        createModel(root, clusterElem);
    }
Tests for "core functionality" of the container model, e.g. ports, or the 'components' and 'bundles' configs.

Before adding a new test to this class, check if the test fits into one of the other existing subclasses
of {@link ContainerModelBuilderTestBase}. If not, consider creating a new subclass.

@author gjoranv
config-model/src/test/java/com/yahoo/vespa/model/container/xml/ContainerModelBuilderTest.java