assertFalse(ComponentUtil.hasComponent("nonExistentComponent"));
    }

    public void test_hasQueryParser() {
        assertFalse(ComponentUtil.hasQueryParser());

        ComponentUtil.register(new Object(), "queryParser");
        assertTrue(ComponentUtil.hasQueryParser());
    }

    public void test_hasViewHelper() {
        assertFalse(ComponentUtil.hasViewHelper());

    }

    /**
     * Checks if query parser is available.
     * @return True if query parser is available, false otherwise.
     */
    public static boolean hasQueryParser() {
        return hasComponent(QUERY_PARSER);
    }

    /**
     * Checks if view helper is available.
     * @return True if view helper is available, false otherwise.
     */