contextToSave.setAuthentication(testToken);
HttpSessionSecurityContextRepository repo = new HttpSessionSecurityContextRepository();
MockHttpServletRequest request = new MockHttpServletRequest();
HttpRequestResponseHolder holder = new HttpRequestResponseHolder(request, new MockHttpServletResponse());
repo.loadContext(holder);
AuthenticationTrustResolver trustResolver = mock(AuthenticationTrustResolver.class);
repo.setTrustResolver(trustResolver);
repo.saveContext(contextToSave, holder.getRequest(), holder.getResponse());
verify(trustResolver).isAnonymous(contextToSave.getAuthentication());