subTest.testGroupByMonthFirstMonth();
subTest.testGroupByMonthFirstMonthReverse();
subTest.testGroupByQuarter();
subTest.testGroupByDateOneRow();
subTest.testGroupByDateOneDay();
<BUG>subTest.testGroupAndCountSameColumn();
}</BUG>
@Test
public void testDataSetNestedGroup() throws Exception {
DataSetNestedGroupTest subTest = new DataSetNestedGroupTest();

subTest.testGroupByMonthFirstMonth();
subTest.testGroupByMonthFirstMonthReverse();
subTest.testGroupByQuarter();
subTest.testGroupByDateOneRow();
subTest.testGroupByDateOneDay();
subTest.testGroupAndCountSameColumn();
subTest.testGroupNumberAsLabel();
}
@Test
public void testDataSetNestedGroup() throws Exception {
DataSetNestedGroupTest subTest = new DataSetNestedGroupTest();
