1、測試驅動開發Test-driven development想到了什么.軟件質量外部質量內部質量設計開發有效率TDD是什么涉及UI的測試功能測試單元測試TDD是什么與極限編程提出的測試先行有關聯是一種軟件研發過程，開發風格可以做到簡單設計、增強信心TDD-軟件開發過程增加一個測試運行所有的測試，觀察新建的測試是失敗的針對新建測試寫實現代碼運行所有的測試成功重構代碼TDD涉及的概念test doubledummyfakestubmock一個測試依據一份訂單，出貨威士忌產品 訂單包含一種產品和這個產品的出貨數量，倉庫有不同的產品庫存。如倉庫中有足夠的產品則出貨，該產品在倉庫中的總量減少出貨數；如倉庫

2、中沒有足夠的產品，該產品不出貨。訂單 order；倉庫 warehouse；產品 product；產品清單 inventorypublic class OrderStateTest private static String TALISKER = “Talisker”;private static String HIGHLAND_PARK = Highland Park;private Warehouse warehouse = new WarehouseImpl();protected void setUp() warehouse.add(TALISKER, 50);warehouse.ad

3、d(HIGHLAND_PARK, 25);public void testOrderIsFilledIfEnoughInWarehouse() Order order = new Order(TALISKER, 50);order.fill(warehouse);assertTrue(order.isFilled();assertTrue(0, warehouse.getInventory(TALISKER);public void testOrderDoesNotRemoveIfNotEnough() Order order = new Order(TALISKER, 51);order.f

4、ill(warehouse);assertFalse(order.isFilled();assertEquals(50, warehouse.getInventory(TALISKER);裝配-SETUPprotected void setUp() warehouse.add(TALISKER, 50);warehouse.add(HIGHLAND_PARK, 25);Order order = new Order(TALISKER, 50);Order order = new Order(TALISKER, 51);執行-EXCUTIONorder.fill(warehouse);驗證-VA

5、LIDATIONassertTrue(order.isFilled();assertTrue(0, warehouse.getInventory(TALISKER);assertFalse(order.isFilled();assertEquals(50, warehouse.getInventory(TALISKER);清理-CLEANUP這個示例中，沒有顯示地恢復測試前狀態。由垃圾回收器回收對象，恢復測試前狀態public class OrderStateTest private static String TALISKER = “Talisker”;private static Stri

6、ng HIGHLAND_PARK = Highland Park;private Warehouse warehouse = new WarehouseImpl();protected void setUp() warehouse.add(TALISKER, 50);warehouse.add(HIGHLAND_PARK, 25);public void testOrderIsFilledIfEnoughInWarehouse() Order order = new Order(TALISKER, 50);order.fill(warehouse);assertTrue(order.isFil

7、led();assertTrue(0, warehouse.getInventory(TALISKER);public void testOrderDoesNotRemoveIfNotEnough() Order order = new Order(TALISKER, 51);order.fill(warehouse);assertFalse(order.isFilled();assertEquals(50, warehouse.getInventory(TALISKER);參考資料Test-driven development/wiki/Test-driven_development測試驅動開發英文名稱：Test-Driven Development by Example作者：Ken