@Override
        public void fill(Result result, String summaryClass, Execution execution) {
            for (Hit hit : result.hits().asList()) {
                if ( ! hit.isFillable()) continue;
                hit.setField("filled",true);
                hit.setFilled("all");
            }
        }
Tests basic search chain execution functionality

@author bratseth
container-search/src/test/java/com/yahoo/search/searchchain/test/ExecutionTestCase.java