Spring3.1 mvc + junit4

1.所需要的jar包

1).commons-dbcp-1.4

2).junit-4.12

3).spring-test-3.1.4.RELEASE

4).org.hamcrest.core

5).spring框架其他相关依赖的jar包

注意：以上是在spring框架的基础上加入junit4, spring框架所需的jar包就不一一列出来了

2.生成一个junit的测试类

列如:我们现在对一个登陆功能业务的接口测试

1).找到你要测试的接口或者接口实现类

2)单击右键---->new---->other---->junit---->junit test case---->next---->选择即将生成的测试类所在的package包(可选)---->next---->勾选要测试的方法(可选)---->finish









完成上面的步奏可以看到生成的测试类了

3.测试类的编码

1).测试类应该继承 AbstractJUnit4SpringContextTests或者AbstractTransactionalJUnit4SpringContextTests

对于继承类的选择: 当测试类中需要用到事务管理时就用AbstractTransactionalJUnit4SpringContextTests

2).在测试类前面加上

@RunWith(SpringJUnit4ClassRunner.class)

@ContextConfiguration(locations"file:WebContent/WEB-INF/autolinkedadmin-servlet.xml")

引入spring配置文件

3).junit4 执行

右键方法名或者class 选择 Run As ----> junit test





结果: 断言预期值跟接口方法返回值不一致 测试失败:

结果: 断言预期值跟接口方法返回值一致 测试成功:

4.测试Controller (单元测试)编码

如何生成一个controller测试类在第二步已经介绍了,就不说了(也可以手动创建测试class)

1.首先在spring配置文件里面加入bean

<!-- junit4 测试Controller -->

<bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />

<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />

2.new一个BaseControllerTest

public class BaseControllerTest {

private static HandlerMapping handlerMapping;

private static HandlerAdapter handlerAdapter;

@BeforeClass

public static void setUp() {

if (handlerMapping == null) {

String[] configs = {"file:WebContent/WEB-INF/autolinkedadmin-servlet.xml" };//这里配置文件根据实际项目相关

XmlWebApplicationContext context = new XmlWebApplicationContext();

context.setConfigLocations(configs);

MockServletContext msc = new MockServletContext();

context.setServletContext(msc);

context.refresh();

msc.setAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE,context);

handlerMapping = (HandlerMapping)

context.getBean(DefaultAnnotationHandlerMapping.class);

handlerAdapter = (HandlerAdapter)

context.getBean(context.getBeanNamesForType(AnnotationMethodHandlerAdapter.class)[0]);

}

}

public ModelAndView excuteController(HttpServletRequest request, HttpServletResponse response)throws Exception {

request.setAttribute(HandlerMapping.INTROSPECT_TYPE_LEVEL_MAPPING, true);

HandlerExecutionChain chain = handlerMapping.getHandler(request);

final ModelAndView model = handlerAdapter.handle(request, response,

chain.getHandler());

return model;

}

}

3.controller测试类

一下代码包括了 1.正常的跳转页面 2.模拟页面传入的参数 3.模拟session

@RunWith(SpringJUnit4ClassRunner.class)

@ContextConfiguration(locations = "file:WebContent/WEB-INF/autolinkedadmin-servlet.xml")

public class UserControllerTest extends BaseControllerTest{

@Resource(name = "webSessionConstantMap")

protected Map<String, String> webSessionConstant; //模拟session时拿session的key(只在用到session时用,这里是根据spring注解拿的,实际情况跟项目走)

private static MockHttpServletRequest request = new MockHttpServletRequest();

private static MockHttpServletResponse response= new MockHttpServletResponse();

@Test

public void testShowAdminUserLogin() throws Exception{

request.setCharacterEncoding("UTF-8");

request.setRequestURI("/showAdminUserLogin");//要测试方法的url

request.setMethod(HttpMethod.POST.name());

//request.addParameter("login_userName", "admin123");

//request.addParameter("login_userPassword", "admin123"); //模拟页面传入的参数(只在controller需要接收页面参数时用到)

/*AdminUser user = new AdminUser();

user.setId(1L);

request.getSession().setAttribute(webSessionConstant.get("SESSION_USER"), user);*/ //模拟session(列如在跳转某些页面之前判断了是否登录,而登录的user对象放入了session中,就在这里模拟session的登录状态)

request.setMethod("POST");

ModelAndView mav = this.excuteController(request, response);

System.out.println(mav.getViewName());

assertEquals("forward:/WEB-INF/jsp/adminUser/login.jsp", mav.getViewName()); //比较一下是否是自己预期要跳转的页面

}

}