Java Spring MVC 3.2.0 UnitTests
I had a bit of a fight today, I wanted to UnitTest some Java Spring MVC code that I’m using for a demo application. But after a lot of Googling, StackOverflow and hitting different documentation of Spring 3.0, 3.1 and 3.2 I finally came to an acceptable solution. Mind you a minimal sample to test MVC controller without having to go crazy with decelerations, attributes, injections and so on and so forth, you catch my drift. There has been a lot of movement from those three versions I mentioned and finally the spring UnitTesting lib has now been folded into Spring itself, this is good news.
Btw, I found the answer in the Spring MVC showcase on GitHub, where else ?
So lets take a look at what you need, bare minimum just the way I like it.
Using Maven, you will need the ref in your POM file
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>3.2.0.RELEASE</version>
<scope>test</scope>
</dependency>
The controller class I’m using comes pretty much directly from creating a new MVC Spring project from Eclipse.
//
import java.text.DateFormat;
import java.util.Date;
import java.util.Locale;
//
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
/**
* Handles requests for the application home page.
*/
@Controller
public class CxHomeController
{
private static final Logger logger = LoggerFactory.getLogger(CxHomeController.class);
/**
* Simply selects the home view to render by returning its name.
*/
@RequestMapping(value = “/”, method = RequestMethod.GET)
public String home(Locale locale, Model model)
{
logger.info(“Welcome home! The client locale is {}.”, locale);
//
Date date = new Date();
DateFormat dateFormat = DateFormat.getDateTimeInstance(DateFormat.LONG, DateFormat.LONG, locale);
String formattedDate = dateFormat.format(date);
model.addAttribute(“serverTime”, formattedDate );
return “home”;
}
}
Then lets look at the Test itself.
package us.kristjansson.springTest;
//
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
//
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
import static org.springframework.test.web.servlet.setup.MockMvcBuilders.standaloneSetup;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.view;
import org.springframework.test.web.servlet.MockMvc;
//
import org.junit.Before;
import org.junit.Test;
public class TxHomeController
{
//
private static final Logger logger = LoggerFactory.getLogger(TxSample.class);
private MockMvc mockMvc;
@Before
public void setup() throws Exception
{
logger.info( “Setup CxHomeController” );
this.mockMvc = standaloneSetup(new CxHomeController()).build();
}
@Test
public void TestController() throws Exception
{
//
logger.info( “testing CxHomeController” );
// The CxHomeController’s view is "home" without content
this.mockMvc.perform(
get(“/”))
.andExpect(status().isOk())
.andExpect(content().string(“”))
.andExpect(view().name(“home”)
);
}
}
