Junit to test restful service - rest

Question

I have written a junit to test my rest service offline.The junit for my restful controller extends AbstractControllerTestSupport which is used to create the dispatcherservletinstance.
#RunWith(SpringJUnit4ClassRunner.class)
#ContextConfiguration(loader=MockWebContextLoader.class, locations={"/rest-servlet- test.xml"})
public abstract class AbstractControllerTestSupport extends TestCase {
private static DispatcherServlet dispatcherServlet;
....
public static DispatcherServlet getServletInstance() {
if(null == dispatcherServlet) {
dispatcherServlet = new DispatcherServlet() {
protected WebApplicationContext createWebApplicationContext(WebApplicationContext parent) {
return MockWebContextLoader.getInstance();
}
};
System.out.println("dispatcher:"+dispatcherServlet.getContextConfigLocation()+":"+dispatcherServlet.getWebApplicationContext());
try {
dispatcherServlet.init(new MockServletConfig());
} catch (ServletException se) {
System.out.println("Exception"+se.getMessage());
}
}
return dispatcherServlet;
}
Following is my loader class.
public class MockWebContextLoader extends AbstractContextLoader {
public static final ServletContext SERVLET_CONTEXT = new MockServletContext(
"/mHealthAPIs", new FileSystemResourceLoader());
private final static GenericWebApplicationContext webContext = new GenericWebApplicationContext();
protected BeanDefinitionReader createBeanDefinitionReader(
final GenericApplicationContext context) {
return new XmlBeanDefinitionReader(context);
}
public final ConfigurableApplicationContext loadContext(
final String... locations) throws Exception {
SERVLET_CONTEXT.setAttribute(
WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE,
webContext);
webContext.setServletContext(SERVLET_CONTEXT);
createBeanDefinitionReader(webContext).loadBeanDefinitions(locations);
AnnotationConfigUtils.registerAnnotationConfigProcessors(webContext);
webContext.refresh();
webContext.registerShutdownHook();
return webContext;
}
public static WebApplicationContext getInstance() {
return webContext;
}
protected String getResourceSuffix() {
return "-context.xml";
}
the test runs fine with spring version 3.0 .However if I shift to spring 3.2.x it gives me following error "The type MockWebContextLoader must implement the inherited abstract method SmartContextLoader.loadContext(MergedContextConfiguration)" .This is because in 3.2.2 "AbstractContextLoader" implements "SmartContextLoader" .
Can you provide me with the work around?

Answer 1

Got the solution:I changed the MockWebContextLoader class as follows.
public class MockWebContextLoader extends AbstractContextLoader {
public static final ServletContext SERVLET_CONTEXT = new MockServletContext(
"/mHealthAPIs", new FileSystemResourceLoader());
private final static GenericWebApplicationContext webContext = new GenericWebApplicationContext();
protected BeanDefinitionReader createBeanDefinitionReader(
final GenericApplicationContext context) {
return new XmlBeanDefinitionReader(context);
}
#Override
public ApplicationContext loadContext(MergedContextConfiguration arg0)
throws Exception {
SERVLET_CONTEXT.setAttribute(
WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE,
webContext);
webContext.setServletContext(SERVLET_CONTEXT);
createBeanDefinitionReader(webContext).loadBeanDefinitions(
arg0.getLocations());
AnnotationConfigUtils.registerAnnotationConfigProcessors(webContext);
webContext.refresh();
webContext.registerShutdownHook();
return webContext;
}
public static WebApplicationContext getInstance() {
return webContext;
}
protected String getResourceSuffix() {
return "-context.xml";
}
public final ConfigurableApplicationContext loadContext(
final String... locations) throws Exception {
return null;
}
}