Developing a Spring Framework MVC application step-by-step 테스트케이스

- Chapter 1
처음에는 단순히 리턴하는 모델의 뷰이름만 확인한다.

public class HelloControllerTests extends TestCase { public void testHandleRequestView() throws Exception{ HelloController controller = new HelloController(); ModelAndView modelAndView = controller.handleRequest(null, null); assertEquals("hello.jsp", modelAndView.getViewName()); } } public class HelloController implements Controller{ protected final Log logger = LogFactory.getLog(getClass()); public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { logger.info("Returning hello view"); return new ModelAndView("hello.jsp"); } }

- Chapter 2.2
모델의 뷰이름이 제대로 되었는지 확인하고 모델 데이터가 있는지 확인한다.

public class HelloControllerTests extends TestCase { public void testHandleRequestView() throws Exception{ HelloController controller = new HelloController(); ModelAndView modelAndView = controller.handleRequest(null, null); assertEquals("WEB-INF/jsp/hello.jsp", modelAndView.getViewName()); assertNotNull(modelAndView.getModel()); String nowValue = (String) modelAndView.getModel().get("now"); assertNotNull(nowValue); } } public class HelloController implements Controller { protected final Log logger = LogFactory.getLog(getClass()); public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String now = (new Date()).toString(); logger.info("Returning hello view with " + now); return new ModelAndView("WEB-INF/jsp/hello.jsp", "now", now); } }

- Chapter 2.3

public class HelloControllerTests extends TestCase { public void testHandleRequestView() throws Exception{ HelloController controller = new HelloController(); ModelAndView modelAndView = controller.handleRequest(null, null); assertEquals("hello", modelAndView.getViewName()); assertNotNull(modelAndView.getModel()); String nowValue = (String) modelAndView.getModel().get("now"); assertNotNull(nowValue); } } public class HelloController implements Controller { protected final Log logger = LogFactory.getLog(getClass()); public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String now = (new Date()).toString(); logger.info("Returning hello view with " + now); return new ModelAndView("hello", "now", now); } }

- Chapter 3.2
도메인객체에 대한 테스트

public class ProductTests extends TestCase { private Product product; protected void setUp() throws Exception { product = new Product(); } public void testSetAndGetDescription() { String testDescription = "aDescription"; assertNull(product.getDescription()); product.setDescription(testDescription); assertEquals(testDescription, product.getDescription()); } public void testSetAndGetPrice() { double testPrice = 100.00; assertEquals(0, 0, 0); product.setPrice(testPrice); assertEquals(testPrice, product.getPrice(), 0); } }

서비스 클래스에 대한 테스트

public class SimpleProductManagerTests extends TestCase { private SimpleProductManager productManager; private List<Product> products; private static int PRODUCT_COUNT = 2; private static Double CHAIR_PRICE = new Double(20.50); private static String CHAIR_DESCRIPTION = "Chair"; private static String TABLE_DESCRIPTION = "Table"; private static Double TABLE_PRICE = new Double(150.10); private static int POSITIVE_PRICE_INCREASE = 10; protected void setUp() throws Exception { productManager = new SimpleProductManager(); products = new ArrayList<Product>(); // stub up a list of products Product product = new Product(); product.setDescription("Chair"); product.setPrice(CHAIR_PRICE); products.add(product); product = new Product(); product.setDescription("Table"); product.setPrice(TABLE_PRICE); products.add(product); productManager.setProducts(products); } public void testGetProductsWithNoProducts() { productManager = new SimpleProductManager(); assertNull(productManager.getProducts()); } public void testGetProducts() { List<Product> products = productManager.getProducts(); assertNotNull(products); assertEquals(PRODUCT_COUNT, productManager.getProducts().size()); Product product = products.get(0); assertEquals(CHAIR_DESCRIPTION, product.getDescription()); assertEquals(CHAIR_PRICE, product.getPrice()); product = products.get(1); assertEquals(TABLE_DESCRIPTION, product.getDescription()); assertEquals(TABLE_PRICE, product.getPrice()); } public void testIncreasePriceWithNullListOfProducts() { try { productManager = new SimpleProductManager(); productManager.increasePrice(POSITIVE_PRICE_INCREASE); } catch(NullPointerException ex) { fail("Products list is null."); } } public void testIncreasePriceWithEmptyListOfProducts() { try { productManager = new SimpleProductManager(); productManager.setProducts(new ArrayList<Product>()); productManager.increasePrice(POSITIVE_PRICE_INCREASE); } catch(Exception ex) { fail("Products list is empty."); } } public void testIncreasePriceWithPositivePercentage() { productManager.increasePrice(POSITIVE_PRICE_INCREASE); double expectedChairPriceWithIncrease = 22.55; double expectedTablePriceWithIncrease = 165.11; List<Product> products = productManager.getProducts(); Product product = products.get(0); assertEquals(expectedChairPriceWithIncrease, product.getPrice()); product = products.get(1); assertEquals(expectedTablePriceWithIncrease, product.getPrice()); } }