I am using JUnit to test my Spring MVC controller. Below is my method which returns a index.jsp
page and shows Hello World
on the screen -
@RequestMapping(value = "index", method = RequestMethod.GET)
public HashMap<String, String> handleRequest() {
HashMap<String, String> model = new HashMap<String, String>();
String name = "Hello World";
model.put("greeting", name);
return model;
}
And below is my JUnit test for the above method:
public class ControllerTest {
private MockMvc mockMvc;
@Before
public void setup() throws Exception {
InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
viewResolver.setPrefix("/WEB-INF/views/");
viewResolver.setSuffix(".jsp");
this.mockMvc = standaloneSetup(new Controller()).setViewResolvers(viewResolver).build();
}
@Test
public void test01_Index() throws Exception {
mockMvc.perform(get("/index")).andExpect(status().isOk()).andExpect(content().contentType("application/json"))
.andExpect(jsonPath("$.greeting").value("Hello World"));
}
}
Above junit was working fine when I debugged it but when I ran the junit as run as junit
, it gave me this error -
MockMvc : Circular view path [view]: would dispatch back to the current handler URL [/view] again
So to fix that I followed this tutorial and after that I am getting this exception -
java.lang.AssertionError: Content type not set
at org.springframework.test.util.AssertionErrors.fail(AssertionErrors.java:39)
at org.springframework.test.util.AssertionErrors.assertTrue(AssertionErrors.java:72)
at org.springframework.test.web.servlet.result.ContentResultMatchers$1.match(ContentResultMatchers.java:75)
at org.springframework.test.web.servlet.MockMvc$1.andExpect(MockMvc.java:141)
at com.ebay.personalization.bullseye.zookeeper.test.ZookeeperControllerTest.test01_Index(ZookeeperControllerTest.java:32)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:76)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:602)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
What am I doing wrong here? On the .jsp page it shows Hello World
..
I am following up on my previous question here
I see a couple of issues with the request mapped method:
Ideally, you should have a @ResponseBody
annotation on your method, to indicate that the returned content is to be streamed out:
@RequestMapping(value = "index", method = RequestMethod.GET)
@ResponseBody
public HashMap<String, String> handleRequest() {
HashMap<String, String> model = new HashMap<String, String>();
String name = "Hello World";
model.put("greeting", name);
return model;
}
Now with this done, your test can look like this:
mockMvc.perform(get("/index").contentType(MediaType.APPLICATION_JSON)).andExpect(status().isOk()).andExpect(content().contentTypeCompatibleWith("application/json"))
.andExpect(jsonPath("$.greeting").value("Hello World"));
In your case, what is happening is Spring is trying to figure out the view name and is getting the view name as index
, which is again the controller path, thus the circular view path error that you are seeing.
You should also check your request mappings:
Does get("/...") match @RequestMapping ?
If the handleRequest is never called, you will get the same error Content type not set
.
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