viewHelper.addInlineMimeType("text/plain");

        assertNotNull(viewHelper.getActionHook());

        ViewHelper.ActionHook actionHook = new ViewHelper.ActionHook();
        viewHelper.setActionHook(actionHook);
        assertEquals(actionHook, viewHelper.getActionHook());

        viewHelper.setEncodeUrlLink(true);
        viewHelper.setUrlLinkEncoding("UTF-8");

        return actionHook;
    }

    /**
     * Sets the action hook for custom processing.
     *
     * @param actionHook the action hook to set
     */
    public void setActionHook(final ActionHook actionHook) {
        this.actionHook = actionHook;
    }

    /**
     * Sets whether to encode URL links.
     *