How to test a spring controller method by using MockMvc?

Question

I'm using spring 3.2.0 and junit 4

This is my controller method which I need to test

@RequestMapping(value="Home") public ModelAndView returnHome(){  return new ModelAndView("Home");     } 

spring-servlet config is:

<context:annotation-config/>     <context:component-scan base-package="com.spring.poc" />     <mvc:annotation-driven />       <bean id="jspViewResolver"     class="org.springframework.web.servlet.view.InternalResourceViewResolver">     <property name="viewClass"         value="org.springframework.web.servlet.view.JstlView" />     <property name="prefix" value="/WEB-INF/jsp/" />     <property name="suffix" value=".jsp" /> 

This is my test class :

public class TestController {  private MockMvc mockMvc;  @Before public void setup() {     InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();     viewResolver.setPrefix("/WEB-INF/");     viewResolver.setSuffix(".jsp");     this.mockMvc = standaloneSetup(new CController()).setViewResolvers(             viewResolver).build(); }  @Test public void CControllerTest() throws Exception {     ......     ......       } 

}

How can I test this method with MockMvc ?

Answer 1

You can use your applications dispatcher servlet xml using the following annoations. The following example is hitting a controller with the path /mysessiontest setting some session attributes and expecting a certain view to be returned:

import org.junit.Before; import org.junit.Test; import org.junit.runner.RunWith; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.http.MediaType; import org.springframework.mock.web.MockHttpServletRequest; import org.springframework.mock.web.MockHttpSession; import org.springframework.test.context.ContextConfiguration; import org.springframework.test.context.junit4.SpringJUnit4ClassRunner; import org.springframework.test.context.web.WebAppConfiguration; import org.springframework.test.web.servlet.MockMvc; import org.springframework.test.web.servlet.setup.MockMvcBuilders; import org.springframework.web.context.WebApplicationContext;  import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.*; import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;  @RunWith(SpringJUnit4ClassRunner.class) @WebAppConfiguration @ContextConfiguration({ "classpath:springDispatcher-servlet.xml" })  public class MySessionControllerTest {      @Autowired WebApplicationContext wac;      @Autowired MockHttpSession session;     @Autowired MockHttpServletRequest request;      private MockMvc mockMvc;      @Before     public void setup() {         this.mockMvc = MockMvcBuilders.webAppContextSetup(this.wac).build();     }      @Test     public void getAccount() throws Exception {         UserDomain user = new UserDomain();         user.setFirstName("johnny");          session.setAttribute("sessionParm",user);         this.mockMvc.perform(get("/mysessiontest").session(session)         .accept(MediaType.TEXT_HTML))         .andExpect(status().isOk())         .andExpect(view().name("test"));     } }