### Question:
AuctionDataItemReader extends AbstractAuctionFileProcess implements ItemReader { @Override public Object readItem() { while (parser.hasNext()) { Auction auction = new Auction(); if (readAuctionItem(auction)) { return auction; } } return null; }  @Override void open(Serializable checkpoint); @Override void close(); @Override Object readItem(); @Override Serializable checkpointInfo(); void setParser(JsonParser parser);  }### Answer:
@Test @Transactional public void testReadItem() throws Exception { itemReader.open(null); int count = 0; Auction auction; while ((auction = ((Auction) itemReader.readItem())) != null) { count ++; assertNotNull(auction); AuctionFile auctionFile = AuctionFile.findById(1L); itemProcessor.getContext().setAuctionFile(auctionFile); auction = (Auction) itemProcessor.processItem(auction); itemWriter.writeItems(Lists.newArrayList(auction)); } assertEquals(8, count); List<Auction> auctions = Auction.findByConnectedRealm(ConnectedRealm.builder().id("1").build()); assertEquals(8, auctions.size()); }