}

    @Test
    public void test_defaultConstructor() {
        final ChatApiManager manager = new ChatApiManager();
        assertNotNull(manager);
    }

    @Test
    public void test_matches_ragChatDisabled() {
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            private static final long serialVersionUID = 1L;

            @Override
            public boolean isRagChatEnabled() {