ProductNameMetaAggregator extends AbstractMetadataAggregator { public MetadataElement getMetadata() { return inputsMetaElement; }  MetadataElement getMetadata(); void aggregateMetadata(Product product); @Override void aggregateMetadata(MetadataElement processingGraphElement);  }
@Test public void testAggregateNoProducts() { final MetadataElement metadataElement = aggregator.getMetadata(); TestHelper.assertCorrectNameAndNoAttributes(metadataElement); assertEquals(0, metadataElement.getNumElements()); }