@Test
void testInfluxDB18() {
    // create database
    String db = "testing_database";
    influxDBQuery("CREATE DATABASE " + db, db);

    // connect to InfluxDB 1.8
    influxDBClient.close();
    influxDBClient = InfluxDBClientFactory.createV1(getInfluxDbUrl(), "username", "password".toCharArray(),
            db, "autogen");
    influxQLQueryApi = influxDBClient.getInfluxQLQueryApi();

    // test query to InfluxDB 1.8
    InfluxQLQueryResult result = influxQLQueryApi.query(new InfluxQLQuery("SHOW DATABASES", db));
    assertSingleSeriesRecords(result)
            .map(record -> record.getValueByKey("name"))
            .contains(db);


    // drop database
    influxDBQuery("DROP DATABASE " + db, db);
}