@Test
public void testMulti() {

    GroupBy groupBy = GroupByParser.parse("id,name");
    assertEquals(2, groupBy.items().length);
    assertGroupBy(groupBy.items()[0], "id", null, null);
    assertGroupBy(groupBy.items()[1], "name", null, null);
    groupBy = GroupByParser.parse("id i,name n");
    assertGroupBy(groupBy.items()[0], "id", "i", null);
    assertGroupBy(groupBy.items()[1], "name", "n", null);
    groupBy = GroupByParser.parse("t.id i,t.name n");
    assertGroupBy(groupBy.items()[0], "id", "i", "t");
    assertGroupBy(groupBy.items()[1], "name", "n", "t");
}