def METHOD_NAME(self):
    count_after_incbk = self._get_bitmap_count()
    if self._inc_bitmap_mode == "on-success":
        if self.count_before_incbk != count_after_incbk:
            self.test.fail("Count of bitmap changed after inc-backup")
    elif self._inc_bitmap_mode == "always":
        if self.count_before_incbk <= count_after_incbk:
            self.test.fail("Count of bitmap not changed after inc-backup")