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Forum: Seam Users Forum ListTopic List
18. Mar 2010, 14:29 America/New_York | Link

Hi,

I want to test an application scoped component using SeamTest. I cannot use a plain unit test since I need some values like the current viewID. How can I destroy/remove my component and recreate a new one?

Here is what I'm trying to achieve: 


    @BeforeMethod
    public void setUp()
        throws Exception
    {
        new FacesRequestLocal()
            {
                @Override
                protected void invokeApplication()
                    throws Exception
                {
                    MyApplicationScopedBean oldBean = (MyApplicationScopedBean) Component.getInstance("bean");

                    // ********** I tried that:
                    // oldBean.destroy();
                    // Contexts.removeFromAllContexts("bean");
                    // Component.forName("bean").destroy(oldBean);

                    MyApplicationScopedBean newBean = (MyApplicationScopedBean) Component.getInstance("bean");

                     // ********* false
                     assertThat(newBean).isNotSameAs(oldBean);
                }
            }.run();
    }

The component is stored in the ELContext and I don't know how to remove it.

Thanks, David

5 Replies:
18. Mar 2010, 14:58 America/New_York | Link

Something like this should do. I do not have IDE around now, so i'm writting off the top of my head. 

Contexts.getApplicationContext().remove("bean");
18. Mar 2010, 15:40 America/New_York | Link

Thank you for your answer but I have already tried this, in fact I replaced it with the more general removeFromAllContexts, but no luck so far.
18. Mar 2010, 21:28 America/New_York | Link

Well, I tried the following (from org.jboss.seam.contexts.Contexts.destroy) which is called when the application is shut down but it does not work: 


Component component = Component.forName("my.full.bean");
Object object = Contexts.getApplicationContext().get("bean");
component.destroy(object);
Contexts.removeFromAllContexts("bean");

So guys how do you test your application scopped components ???
18. Mar 2010, 22:08 America/New_York | Link

I found this that seems to do the job: 


    /**
     * Creates a new instance of the specified component and registers it in its scope.
     *
     * @param <T> the class of the component.
     * @param clazz the class of the component.
     * @param aliases the factory aliases of the component.
     *
     * @throws Exception if an error occurs.
     */
    @SuppressWarnings("unchecked")
    protected <T> void newInstance(final Class<T> clazz, final String... aliases)
        throws Exception
    {
        new FacesRequestEx()
            {
                @Override
                protected void invokeApplication()
                {
                    final String componentName = Component.getComponentName(clazz);
                    final Component component = Component.forName(componentName);
                    final Context componentContext = component.getScope().getContext();

                    final T result = (T) component.newInstance();
                    componentContext.set(componentName, result);

                    for (String alias : aliases)
                    {
                        componentContext.set(alias, result);
                    }
                }
            }.run();
    }
19. Mar 2010, 08:41 America/New_York | Link

I just don't believe that removeFromAllContexts does not work. I have no problem with testing application scoped components.

What is your problem with viewId ? It is always provided if you use the Faces/NonFacesRequest. Besides, in my opinion, the application scoped components should be designed in such a way that they could have without knowledge about views.