private int totalLevel = 5;
	
	private int brotherCount=10;

	@Before
	public void setUp() throws Exception {
	}

	@After
	public void tearDown() throws Exception {
	}

	@Test
	@Rollback(false)
	public void testSave() {
		insertTestData(brotherCount);

	}

	private void insertTestData(int brotherCount) {

		insertFirstLayer(brotherCount);
		for (int i = 0; i < brotherCount; i++)
			insertOtherLayer(10 + i, brotherCount, 2);

	}

	private void insertFirstLayer(int brothersCount) {
		for (int i = 0; i < brothersCount; i++) {
			GoodsCategory first = new GoodsCategory();
			first.setName("The first layer" + i);
			first.setCode(String.valueOf(10 + i));
			first.setParentCode(String.valueOf(0));
			this.categoryDao.save(first);
		}
	}

	private void insertOtherLayer(long parent_code, int brothersCount, final int currentLevel) {
		int currentLevel_tmp = currentLevel;
		if (currentLevel > totalLevel)
			return;
		logger.debug("parent_code==" + parent_code);
		for (int k = 0; k < brothersCount; k++) {
			GoodsCategory otherlayer = new GoodsCategory();
			long code_tmp = 100;
			String current_code = String.valueOf(parent_code) + String.valueOf(code_tmp + k);
			otherlayer.setName("The " + currentLevel_tmp + " layer");
			otherlayer.setCode(current_code);
			otherlayer.setParentCode(String.valueOf(parent_code));
			this.categoryDao.save(otherlayer);
			insertOtherLayer(Long.parseLong(current_code), brothersCount, currentLevel_tmp + 1);
		} 
	}

	@Test
	public void testGetAllCategorys() {
		// fail("Not yet implemented");
		long totalRecordCount=0;
		for (int i = 1; i < totalLevel+1; i++) {
			totalRecordCount+=Math.pow(brotherCount, i);
		}
		System.out.println("totalRecordCount========"+totalRecordCount);
		
		List<GoodsCategory> goodCategories = this.categoryDao.getAll();
		System.out.println("list size======"+goodCategories.size());
		TreeHelper treeHelper = new TreeHelper(goodCategories);
		System.out.println("print tree");
		//treeHelper.printRoot();

	}