复杂业务逻辑下的单元测试
? ? 你有木有遇到过这种情况，在为一个复杂业务方法写单个单元测试时，你需要做一大堆初始化工作，主要是各种service，你也可以直接把总个容器初始化（如果你使用spring等容器的话），如果项目比较大，运行单个测试，得等上几十秒，你hold住吗，可以参照我的方法进行加速（http://mingliang-luo.iteye.com/blog/1258830）；
? ? 现在就复杂业务方法写单元测试给出一个解决方案：我采用的是【 继承 + easyMock 】，也可以使用【easyMock class + easyMock】；
? ? 一个复杂业务方法内，会调用此类中很多的方法，而你的测试又与之无关，这时，你可以使用继承，直接重写那个方法，那么，这个方法内的初始化工作就不需要做了，当然，你也可以使用【easyMock class】重写;
? ? 但如果不是调用此类的方法，而是调用其它service中的方法，那你可以直接使用easyMock代替真实的service;
? ? 采用这种方式后，你就可以快速编写这种复杂业务逻辑的测试了，并且它可以运行得很快。
? ? 下面是我的一个测试，仅供参考：
static MemberService memberService; //需要测试的方法static SqlSession sqlSession;@BeforeClasspublic static void beforeClass() throws Exception{sqlSession = SessionFactory.getSqlSession(); MemberServiceImpl memberServiceImpl = new MemberServiceImpl();MemberDao memberDao = new MemberDao();memberDao.setMemberMapper((MemberMapper)SessionFactory.getMapper(MemberMapper.class, sqlSession));memberServiceImpl.setMemberDao(memberDao);memberService = memberServiceImpl;ReturnFreeToCustomerByFirstRefundOrChangeTest re = new ReturnFreeToCustomerByFirstRefundOrChangeTest();re.setMemberService(memberServiceImpl);changOrRefundService = re;}//第一次退换货，返运费，15元@Testpublic void testReturnFreeToCustomer1th() throws Exception{ChangOrRefundAssistant cra = new ChangOrRefundAssistant();cra.setOrderCd("110927001086NT");cra.setRefundType(NoneyReturnedConstants.REFUNDTYPE_TH);Order order = new Order();order.setOrderCd(cra.getOrderCd());order.setMemberId(239l);Float account = memberService.queryAccountBalanceByMemberId(order.getMemberId());//无关的serviceOrderCCService orderCCService = createMock(OrderCCService.class);orderCCService.returnedInventory(EasyMock.<String>anyObject(), EasyMock.<List<OrderItem>>anyObject());expect(orderCCService.genOrderLog(EasyMock.<PublicLog>anyObject())).andReturn(1);expect(orderCCService.loadOrdertByCd(EasyMock.<String>anyObject())).andReturn(order);replay(orderCCService);changOrRefundService.setOrderCCService(orderCCService);//退货changOrRefundService.refundByWarehouseRMI(cra);sqlSession.clearCache();Float accountAfter = memberService.queryAccountBalanceByMemberId(order.getMemberId());//[帐户增加15元]assertEquals(15, accountAfter - account, 0.001);List<AccountLog> logs = memberService.queryAccountLogs(order.getMemberId());AccountLog lastLog = logs.get(0);//[存入] [15元] [退换货返运费，订单为xxxxxx]assertEquals(Constants.MBS_ACCOUNT_TRADE_TYPE_1, lastLog.getTradeType());assertEquals(15, lastLog.getAmount(), 0.001);assertTrue(lastLog.getNote().startsWith("退换货返运费"));assertTrue(lastLog.getNote().contains(order.getOrderCd()));}//下面的全是refundByWarehouseRM会调用的方法，不关心，直接passpublic ChangOrRefund queryChgOrRefdByOrderId(Long orderId) throws Exception{return new ChangOrRefund();}public List<ChangOrRefundDetail> loadChangOrRefundDetailByChgId(Long id)throws Exception {return new ArrayList<ChangOrRefundDetail>();}public List<OrderItem> genOrderItemByRefund(List<ChangOrRefundDetail> lstDetails,Long orderId)throws Exception{return null;}public void updateOrderItemByWhouse(Long orderItemID,String refundType) throws Exception{}public void deductInventoryByChange(String channelCode,List<ChangOrRefundDetail> lstChgItem) throws Exception{}public void updateOrderByWH(ChangOrRefundAssistant changOrRefundAssistant,Order order) throws Exception{}