（Portal 开发读书笔记）Spring Portlet MVC 测试Controller

测试Spring Portlet MVC 中的Controller有两种方法，一种是用mock对象，一种是用TestContext框架

测试1：用mock 对象测试Controller。我们把所有Controller用到或者依赖的对象全部mock掉。

public class AddBookControllerTest {
//这是被测试的Controller类的实例
private AddBookController addBookController;
//因为Controller依赖某些Service,所以我们创造这些Service的mock对象
private BookService bookService= new MockBookService();

@Before
public void setUp() {
addBookController = new AddBookController();
addBookController.setBookService(bookService);
}

@Test
public void testShowAddBookForm() {
//这个测试用例测试一个render方法
//我们首先创造一个RenderResponse的mock对象
//调用mock对象上的被测试的方法并且比较返回值
RenderResponse response = new MockRenderResponse();
assertEquals("addBookForm",
addBookController.showAddBookForm(response));
}

@Test
public void testAddBook() {
//这个测试用例测试一个action方法
Book book = new Book("test book", "test author", 1234567890L);
MockActionResponse response = new MockActionResponse();
//我们调用被测试的方法，让它加入一本书
addBookController.addBook(book,
new BindException(book, "book"), response,
new SimpleSessionStatus());
//比较结果
assertNotNull(bookService.getBook(1234567890L));
assertEquals("books", response.getRenderParameter("myaction"));
}
}

测试2：我们用TestContext框架来进行测试。

//@RunWith用来指定运行这些测试的Runner
@RunWith(SpringJUnit4ClassRunner.class)
//@ContextConfiguration用来指定运行这些测试所用到的Spring应用上下文
@ContextConfiguration(
locations="classpath:bookCatalogTest-portlet.xml"
)
@TestExecutionListeners(value =
{ DependencyInjectionTestExecutionListener.class }
)
public class AddBookControllerTestContext extends
AbstractJUnit4SpringContextTests {
@Autowired
@Qualifier("addBookController")
private AddBookController addBookController;
@Autowired
@Qualifier("myBookService")
private BookService bookService;
@Autowired
private Validator validator;
@Test
public void testShowAddBookForm() {
RenderResponse response = new MockRenderResponse();
assertEquals("addBookForm",
addBookController.showAddBookForm(response));
}
...
@Test
public void testBook() {
Set<ConstraintViolation<Book>> violations =
validator.validate(new Book());
int[] actual = {violations.size()};
int[] expected = {4};
assertArrayEquals(expected, actual);
}
}