@Test
    void testGrouping() {
        String grouping = "[ { \"all\" : { \"group\" : \"time.year(a)\", \"each\" : { \"output\" : \"count()\" } } } ]";
        String expected = "[[]all(group(time.year(a)) each(output(count())))]";
        assertGrouping(expected, parseGrouping(grouping));
    }
Tests Query.Select

@author henrhoi
@author bratseth
container-search/src/test/java/com/yahoo/select/SelectTestCase.java