// Setup mock configuration with blank webhook URLs
        ComponentUtil.setFessConfig(new MockFessConfig() {
            @Override
            public String getGoogleChatWebhookUrls() {
                return "";
            }
        });

        MockSMailPostingDiscloser discloser = new MockSMailPostingDiscloser();

        // Should return early without doing anything

    }

    default boolean hasNotification() {
        return StringUtil.isNotBlank(getNotificationTo()) || StringUtil.isNotBlank(getSlackWebhookUrls())
                || StringUtil.isNotBlank(getGoogleChatWebhookUrls());
    }

    default void setSlackWebhookUrls(final String value) {
        setSystemProperty(Constants.SLACK_WEBHOOK_URLS_PROPERTY, value);
    }

    default String getSlackWebhookUrls() {

        // https://developers.google.com/hangouts/chat/how-tos/webhooks
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String googleChatWebhookUrls = fessConfig.getGoogleChatWebhookUrls();
        if (StringUtil.isBlank(googleChatWebhookUrls)) {
            return;
        }
        final String body = toGoogleChatMessage(discloser);

        form.notificationAdvanceSearch = fessConfig.getNotificationAdvanceSearch();
        form.slackWebhookUrls = fessConfig.getSlackWebhookUrls();
        form.googleChatWebhookUrls = fessConfig.getGoogleChatWebhookUrls();
        form.logNotificationEnabled = fessConfig.isLogNotificationEnabled() ? Constants.TRUE : Constants.FALSE;
        form.logNotificationLevel = fessConfig.getLogNotificationLevel();