title: Testing Spring MVC Router with MockMVC
body: <p>I'm trying to test my Spring MVC webapp with Spring test. It uses <a href="https://github.com/resthub/springmvc-router" rel="noreferrer" title="springmvc-router">springmvc-router</a> for routing and that appears to break the tests, which work fine when I use <code>@RequestMapping</code> instead of my <code>routes.conf</code> file.</p>
  
  <p>I have a <code>.jsp</code> file called <code>valid.jsp</code>, and it displays fine when I run the development site from Jetty. The controller is:</p>
  
  <pre><code>@Controller
  @EnableWebMvc
  public class AuthController {
    public String valid() {
      return "valid";
    }
  }
  </code></pre>
  
  <p>My <code>routes.conf</code> file maps <code>GET /valid   authController.valid</code>.</p>
  
  <p>Now, my tester looks like</p>
  
  <pre><code>@RunWith(SpringJUnit4ClassRunner.class)
  @ContextConfiguration(locations = {"/test-context.xml",
      "/spring/spring-security.xml",
      "file:src/main/webapp/WEB-INF/mvc-config.xml"})
  @WebAppConfiguration
  @Import(RouteConfig.class)
  public class AuthControllerTest {
    private MockMvc mockMvc;
  
    @Autowired
    private WebApplicationContext webApplicationContext;
  
    @Autowired
    private AuthenticationManager authenticationManager;
  
    @Before
    public void init() {
      MockitoAnnotations.initMocks(this);
      mockMvc =
          MockMvcBuilders.webAppContextSetup(webApplicationContext).dispatchOptions(true).build();
    }
  
    @Test
    public void testValid() throws Exception {
      mockMvc.perform(get("/validation-success"))
          .andDo(print())
          .andExpect(status().isOk());
    }
  </code></pre>
  
  <p>When the <code>mockMvc.perform()</code> is run, a NullPointerException is thrown:</p>
  
  <pre><code>org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.NullPointerException
      at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:943)
      at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:822)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:668)
      at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:807)
      at org.springframework.test.web.servlet.TestDispatcherServlet.service(TestDispatcherServlet.java:64)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:770)
      at org.springframework.mock.web.MockFilterChain$ServletFilterProxy.doFilter(MockFilterChain.java:170)
      at org.springframework.mock.web.MockFilterChain.doFilter(MockFilterChain.java:137)
      at org.springframework.test.web.servlet.MockMvc.perform(MockMvc.java:141)
      at com.mypackage.AuthControllerTest.testValid(AuthControllerTest.java:45)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
      at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
      at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
      at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
      at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
      at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
      at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:83)
      at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
      at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:232)
      at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:89)
      at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
      at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
      at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
      at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
      at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
      at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
      at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71)
      at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
      at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:175)
      at org.junit.runner.JUnitCore.run(JUnitCore.java:160)
      at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:77)
      at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:195)
      at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:63)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
  Caused by: java.lang.NullPointerException
      at org.resthub.web.springmvc.router.HTTPRequestAdapter.parseRequest(HTTPRequestAdapter.java:196)
      at org.resthub.web.springmvc.router.RouterHandlerMapping.getHandlerInternal(RouterHandlerMapping.java:166)
      at org.springframework.web.servlet.handler.AbstractHandlerMapping.getHandler(AbstractHandlerMapping.java:300)
      at org.springframework.web.servlet.DispatcherServlet.getHandler(DispatcherServlet.java:1101)
      at org.springframework.test.web.servlet.TestDispatcherServlet.getHandler(TestDispatcherServlet.java:104)
      at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:916)
      at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:876)
      at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:931)
      ... 41 more
  </code></pre>
  
  <p>So the question is: is it possible to use Spring's test framework with springmvc-router?</p>