public void testModelOnSession() throws Exception {
    inter.setScope("session");
    inter.setName("king");

    User user = new User();
    user.setName("King George");
    Map session = new HashMap();
    ActionContext.getContext().setSession(session);
    ActionContext.getContext().getSession().put("king", user);

    ScopedModelDriven action = new MyUserScopedModelDrivenAction();
    MockActionInvocation mai = new MockActionInvocation();
    MockActionProxy map = new MockActionProxy();
    ActionConfig ac = new ActionConfig.Builder("", "", "").build();
    map.setConfig(ac);
    mai.setAction(action);
    mai.setProxy(map);

    inter.intercept(mai);
    inter.destroy();

    assertNotNull(action.getModel());
    assertNotNull(action.getScopeKey());
    assertEquals("king", action.getScopeKey());

    Object model = ActionContext.getContext().getSession().get(action.getScopeKey());
    assertNotNull(model);
    assertTrue("Model should be an User object", model instanceof User);
    assertEquals("King George", ((User) model).getName());
  }
  public void testModelAlreadySetOnAction() throws Exception {
    inter.setScope("request");
    inter.setName("king");

    User user = new User();
    user.setName("King George");

    ScopedModelDriven action = new MyUserScopedModelDrivenAction();
    action.setModel(user);
    MockActionInvocation mai = new MockActionInvocation();
    MockActionProxy map = new MockActionProxy();
    ActionConfig ac = new ActionConfig.Builder("", "", "").build();
    map.setConfig(ac);
    mai.setAction(action);
    mai.setProxy(map);

    inter.intercept(mai);
    inter.destroy();

    assertNotNull(action.getModel());
    assertNull(action.getScopeKey()); // no scope key as nothing happended
  }