private static void assertDocumentType(String expName, String expBucketSpace, BucketspacesConfig.Documenttype docType) {
        assertEquals(expName, docType.name());
        assertEquals(expBucketSpace, docType.bucketspace());
    }
Unit tests for content search cluster.

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