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As part of Spring 3 MVC it is possible to inject the currently logged in user (Principle) object into a controller method. E.g. @Controller public class MyController { @RequestMapping(value="/update", method = RequestMethod.POST) public String update(ModelMap model, Principal principal) { String name = principal.getName(); ... the rest here } } This is documented as part of the Spring 3 documentation here: http://static.springsource.org/spring/docs/3.0.x/spring-framework-reference/html/mvc.html#mvc-ann-requestmapping-arguments . This works in the production code. However I don't know how to test this. When I create an integration test (having set up spring security context as well) and call the controller handle method then the Principal is always null! public class FareTypeControllerIntegrationTest extends SpringTestBase { @Autowired private MyController controller; @Autowired private AnnotationMethodHandlerAdapter handlerAdapter; private final MockHttpServletRequest request = new MockHttpServletRequest(); private final MockHttpServletResponse response = new MockHttpServletResponse(); @Test public void testUpdate() throws Exception { request.setRequestURI("/update"); request.setMethod(HttpMethod.POST.name()); ... setup rest of request ModelAndView mav = handlerAdapter.handle(request, response, controller); .. rest of assertions } The tests are running correctly and everything except the Principal is null. Any ideas? TIA Ayub

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