private StorDistributionConfig getStorDistributionConfig(ContentCluster c) {
        StorDistributionConfig.Builder b = new StorDistributionConfig.Builder();
        c.getConfig(b);
        return new StorDistributionConfig(b);
    }
Unit tests for hierarchic distribution in an indexed content cluster.

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