@Test
void testFromSortedTagList() {

    final List<StatisticTag> tagList = new ArrayList<>();
    tagList.add(new StatisticTag("Tag0", "someValue"));
    tagList.add(new StatisticTag("Tag1", RollUpBitMask.ROLL_UP_TAG_VALUE));
    tagList.add(new StatisticTag("Tag2", "someValue"));
    tagList.add(new StatisticTag("Tag3", RollUpBitMask.ROLL_UP_TAG_VALUE));
    final RollUpBitMask rowKeyBitMap = RollUpBitMaskUtil.fromSortedTagList(tagList);
    assertThat(rowKeyBitMap.toString()).isEqualTo("000000000001010");
}