}

    public long deleteByVirtualHost(final String virtualHost) {
        final SearchEngineClient searchEngineClient = ComponentUtil.getSearchEngineClient();
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String index = fessConfig.getIndexDocumentUpdateIndex();
        return deleteByVirtualHost(searchEngineClient, index, virtualHost);
    }

        assertEquals("fess.update", resultMap.get("index"));
        assertEquals("config_id", resultMap.get("field"));
        assertEquals(configId, resultMap.get("value"));
    }

    public void test_deleteByVirtualHost() {
        final Map<String, String> resultMap = new HashMap<>();
        final SearchEngineClient client = new SearchEngineClient() {
            @Override