### Question:
DataWiring implements Wiring { @Override public DataWriterFactory dataWriterFactory() { ParquetIOWriter writer = new ParquetIOWriterImpl(); ValidationRegistryFactory registryFactory = new CatalogValidationRegistryFactory(); PlatformDataFormatterFactory formatterFactory = new PlatformDataFormatterFactory(writer, param, registryFactory); return new PlatformDataWriterFactory(param, cs, dis, httpClient, formatterFactory); } DataWiring(String imsOrg, DataSet dataSet);  DataWiring(String imsOrg, DataSet dataSet, HttpClient httpClient); @Override DataReaderFactory dataReaderFactory(); @Override DataWriterFactory dataWriterFactory();  }### Answer:
@Test public void testGetDataWriterFactory() { assertTrue(dataWiring.dataWriterFactory()!=null); }