assertEquals(Filter.ReturnCode.INCLUDE_AND_NEXT_COL,
filter.filterKeyValue(newKeyValue("row1", "val1", tx6.getWritePointer())));
assertEquals(Filter.ReturnCode.INCLUDE_AND_NEXT_COL,
filter.filterKeyValue(newKeyValue("row1", "val1", tx5.getWritePointer())));
assertEquals(Filter.ReturnCode.SKIP,
filter.filterKeyValue(newKeyValue("row1", "val1", tx4.getWritePointer())));
assertEquals(Filter.ReturnCode.SKIP,
filter.filterKeyValue(newKeyValue("row1", "val1", tx3.getWritePointer())));
assertEquals(Filter.ReturnCode.INCLUDE_AND_NEXT_COL,
filter.filterKeyValue(newKeyValue("row1", "val1", tx2.getWritePointer())));
}