public void TryUseLocalhostClustering_Refuses_Null_Configuration()
        {
            ISiloHostBuilder builder       = new SiloHostBuilder();
            IConfiguration   configuration = null;

            var error = Assert.Throws <ArgumentNullException>(() =>
            {
                builder.TryUseLocalhostClustering(configuration, 0, 0);
            });

            Assert.Equal("configuration", error.ParamName);
        }