private ContentCluster getMultiGroupCluster() throws Exception {
        String groupXml = joinLines("  <group>",
                          "    <distribution partitions='1|*'/>",
                          "    <group distribution-key='3' name='group0'>",
                          "      <node distribution-key='7' hostalias='mockhost'/>",
                          "      <node distribution-key='11' hostalias='mockhost'/>",
                          "    </group>",
                          "    <group distribution-key='5' name='group1'>",
                          "      <node distribution-key='17' hostalias='mockhost'/>",
                          "      <node distribution-key='13' hostalias='mockhost'/>",
                          "    </group>",
                          "  </group>", "");
        return createCluster(createClusterXml(groupXml, 2, 2));
    }
Unit tests for the naming of search nodes base dir and config ids in an indexed content cluster.

@author geirst
config-model/src/test/java/com/yahoo/vespa/model/content/IndexedSchemaNodeNamingTest.java