Testing a spring mvc rest controller - spring

Question

I'm trying to create a very basic unit test for a spring mvc rest controller using the MockMvcBuilders.standaloneSetup method. I keep getting a 404 error. Below I list my Test application context, my test class, and my controller and the full stack trace. Any guidance is appreciated.
#Configuration
public class TestContext
{
#Bean
public Service service()
{
return mock(Service.class);
}
}
#RunWith(SpringJUnit4ClassRunner.class)
#ContextConfiguration(classes={TestContext.class})
#WebAppConfiguration
public class TestUsingWebAppContextSetUp
{
private MockMvc mockMvc;
#Autowired
private Service service;
#Before
public void setUp()
{
mockMvc = MockMvcBuilders.standaloneSetup(MyController.class)
.build();
}
#Test
public void test() throws Exception
{
mockMvc.perform(get("/search?phoneNumber=5551112222"))
.andExpect(status().isOk())
.andExpect(content().contentType(MediaType.APPLICATION_JSON_VALUE));
}
}
public class MyController
{
#Autowired
private Service service;
#RequestMapping("/search")
public List<SearchResult> search(#RequestParam(value="phoneNumber") String phoneNumber)
{
System.out.println("search called");
Search search = new Search();
search.setPhoneNumber(phoneNumber);
return service.search(search);
}
}
java.lang.AssertionError: Status expected:<200> but was:<404> at
org.springframework.test.util.AssertionErrors.fail(AssertionErrors.java:60)
at
org.springframework.test.util.AssertionErrors.assertEquals(AssertionErrors.java:89)
at
org.springframework.test.web.servlet.result.StatusResultMatchers$10.match(StatusResultMatchers.java:653)
at
org.springframework.test.web.servlet.MockMvc$1.andExpect(MockMvc.java:152)
at
com.mycompany.TestUsingWebAppContextSetUp.test(TestUsingWebAppContextSetUp.java:41)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at
java.lang.reflect.Method.invoke(Unknown Source) at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
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:73)
at
org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82)
at
org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:73)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:217)
at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:83)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at
org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at
org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at
org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at
org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at
org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at
org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:68)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at
org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:163)
at
org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
at
org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)

Answer 1

The javadoc of MockMvcBuilders.standaloneSetup states
Build a MockMvc by registering one or more #Controller's instances and
configuring Spring MVC infrastructure programmatically. This allows
full control over the instantiation and initialization of controllers,
and their dependencies, similar to plain unit tests while also making
it possible to test one controller at a time.
So you would use it as
mockMvc = MockMvcBuilders.standaloneSetup(new MyController()).build();
registering an actual instance. If you need this to be a Spring managed instance (which you probably do considering it has an #Autowired field), you'd have to get it from the ApplicationContext.