private static void assertGrouping(String expected, Query query) {
        List<String> actual = new ArrayList<>();
        for (GroupingRequest request : query.getSelect().getGrouping())
            actual.add(request.continuations().toString() + request.getRootOperation());
        assertEquals(expected, actual.toString());
    }
Smoke test for first generation YQL+ integration.
container-search/src/test/java/com/yahoo/search/yql/MinimalQueryInserterTestCase.java