junit test case giving error - spring-mvc

Question

I am new to writing test cases:
My controller is below :
#RequestMapping(value={"/addschool" }, method = RequestMethod.GET)
public final ModelAndView addschool(#ModelAttribute("addschool") Pricing pricing, Map<String, Object> map,
Model model, HttpServletRequest request) {
System.out.println("Name=" + pricing.getName() + " age=" + request.getParameter("age"));
ModelAndView mv = new ModelAndView(ADDSCHOOL);
return mv;
}
and my junit test case is this :
public class AddSchoolTest {
#Autowired
private UserManagementController controller;
#Test
public void testAddSchool() {
ModelMap model = new ModelMap();
HttpServletRequest request = new MockHttpServletRequest();
Pricing pricing = new Pricing();
String userName = "Laily";
pricing.setName(userName);
//ModelAndView mav= controller.handleRequest();
try{
ModelAndView mav= controller.addschool(pricing, model,null, request);
//fail("Not yet implemented");
assertNull(pricing);
assertFalse(model.isEmpty());
Assert.assertEquals("addschool", mav.getViewName());
}catch(Exception e){
}
}
}
but my problem is even if I will remove "add school" and put something else it wil show green but if I remove try and catch than in every case it wil give red. What is the problem.
Full stack trace is this
Error creating bean with name 'com.enbee.admin.controller.AddSchoolTest': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.enbee.admin.controller.AddInstiDeptLibController com.enbee.admin.controller.AddSchoolTest.controller; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [com.enbee.admin.controller.AddInstiDeptLibController] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {#org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:287)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1106)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireBeanProperties(AbstractAutowireCapableBeanFactory.java:374)
at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:110)
at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:75)
at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:321)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:211)
aused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.enbee.admin.controller.AddInstiDeptLibController com.enbee.admin.controller.AddSchoolTest.controller; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [com.enbee.admin.controller.AddInstiDeptLibController] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {#org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:506)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:87)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:284)
... 26 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [com.enbee.admin.controller.AddInstiDeptLibController] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {#org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:924)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:793)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:707)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:478)
... 28 more

Answer 1

As pappu_kity says, removing the empty catch block exposes the fact that your controller field is null - and so probably hasn't been autowired.
To ensure that the field is autowired using #Autowired you need to run the test with the SpringJUnit4ClassRunner by annotating the AddSchoolTest class:
#RunWith(SpringJUnit4ClassRunner.class)
#ContextConfiguration(locations = { "classpath*:/path/to/applicationContext.xml" })
public class AddSchoolTest {
#Autowired
private UserManagementController controller;
#Test
public void testAddSchool() throws Exception {
ModelMap model = new ModelMap();
HttpServletRequest request = new MockHttpServletRequest();
Pricing pricing = new Pricing();
String userName = "Laily";
pricing.setName(userName);
//ModelAndView mav= controller.handleRequest();
ModelAndView mav= controller.addschool(pricing, model,null, request);
//fail("Not yet implemented");
assertNull(pricing);
assertFalse(model.isEmpty());
Assert.assertEquals("addschool", mav.getViewName());
}
}
Ensure that the #ContextConfiguration is set appropriately for the locations of your Spring config files.

Answer 2

you can try changing
ModelAndView mv = new ModelAndView(ADDSCHOOL);
to
ModelAndView mv = new ModelAndView(addschool); or
ModelAndView mv = new ModelAndView(pricing);
as it is in the #ModelAttribute("addschool") Pricing pricing
in your controller action .
I am not sure but just can see whether it works or not
Thanks.

Answer 3

if it is red then your test case is falling, your catch block is empty, print the stack trace and see what is the problem , upon exception your test case will fail.