public void WithCredentials_throws_argumentException_for_invalid_args() { var config = new ClusterOptions(); Assert.Throws <ArgumentException>(() => config.WithCredentials(null, null)); Assert.Throws <ArgumentException>(() => config.WithCredentials(string.Empty, null)); Assert.Throws <ArgumentException>(() => config.WithCredentials(null, string.Empty)); Assert.Throws <ArgumentException>(() => config.WithCredentials(string.Empty, string.Empty)); }