public KafkaNetProviderTests()
        {
            IConfigurationRoot config = new ConfigurationBuilder()
                                        .SetBasePath(AppDomain.CurrentDomain.BaseDirectory)
                                        .AddJsonFile("appsettings.json").Build();

            _kafkaTopic  = config["KafKa:Topic"];
            _kafka_conns = config["KafKa:Conns"];
            _provider    = new KafkaNetProvider(_kafkaTopic, _kafka_conns);
        }
 public KafkaNetProviderTests()
 {
     _provider = new KafkaNetProvider(_kafkaTopic, _kafka_conns);
 }