### Question:
DecisionMetadataEngine extends CommonsMetadataEngine<IStratioStreamingAPI> { @Override protected void dropCatalog(CatalogName indexName, Connection<IStratioStreamingAPI> connection) throws ExecutionException, UnsupportedException { throw new UnsupportedException("Drop catalog not supported in Decision connector"); } DecisionMetadataEngine(ConnectionHandler connectionHandler);   }### Answer:
@Test(expected = UnsupportedException.class) public void dropCatalogTest() throws Exception { decisionMetadataEngine.dropCatalog(null, (Connection) null); }