DataCube<LongOp> cube = new DataCube<LongOp>(dims, rollups);
DataCubeIo<LongOp> cubeIo = new DataCubeIo<LongOp>(cube, dbHarness, 1, Long.MAX_VALUE, SyncLevel.FULL_SYNC);
cubeIo.writeSync(new LongOp(1), new WriteBuilder(cube).at(X, 1L).at(Y, 1L));
assertEquals(1L, cubeIo.get(new ReadBuilder(cube).at(X, 1L).at(Y, 1L)).get().getLong());
cubeIo.writeSync(new LongOp(1), new WriteBuilder(cube).at(Y, 1L).at(Z, 1L));
assertEquals(1L, cubeIo.get(new ReadBuilder(cube).at(Y, 1L).at(Z, 1L)).get().getLong());
}