@Test
void testFromTagPositions() {

    final RollUpBitMask rowKeyBitMap1 = RollUpBitMask.fromTagPositions(Arrays.asList(1, 4, 14));
    final RollUpBitMask rowKeyBitMap2 = RollUpBitMask
            .fromMask(new short[]{0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1});
    assertThat(rowKeyBitMap2).isEqualTo(rowKeyBitMap1);
}