if err != nil {
		return Config{}, err
	}
	return cfg, nil
}

const (
	skipVerify = "skip_verify"
)

// DefaultKVS is the default K/V config system for
// the STS TLS API.
var DefaultKVS = config.KVS{
	config.KV{
		Key:   skipVerify,
		Value: "off",
	},
}

type NSQArgs struct {
	Enable      bool      `json:"enable"`
	NSQDAddress xnet.Host `json:"nsqdAddress"`
	Topic       string    `json:"topic"`
	TLS         struct {
		Enable     bool `json:"enable"`
		SkipVerify bool `json:"skipVerify"`
	} `json:"tls"`
	QueueDir   string `json:"queueDir"`
	QueueLimit uint64 `json:"queueLimit"`
}

// Validate NSQArgs fields
func (n NSQArgs) Validate() error {
	if !n.Enable {
		return nil
	}

	BatchCommitTimeout time.Duration `json:"batchCommitTimeout"`
	TLS                struct {
		Enable        bool               `json:"enable"`
		RootCAs       *x509.CertPool     `json:"-"`
		SkipVerify    bool               `json:"skipVerify"`
		ClientAuth    tls.ClientAuthType `json:"clientAuth"`
		ClientTLSCert string             `json:"clientTLSCert"`
		ClientTLSKey  string             `json:"clientTLSKey"`
	} `json:"tls"`

	Topic   string      `json:"topic"`
	Version string      `json:"version"`
	TLS     struct {
		Enable        bool               `json:"enable"`
		RootCAs       *x509.CertPool     `json:"-"`
		SkipVerify    bool               `json:"skipVerify"`
		ClientAuth    tls.ClientAuthType `json:"clientAuth"`
		ClientTLSCert string             `json:"clientTLSCert"`
		ClientTLSKey  string             `json:"clientTLSKey"`
	} `json:"tls"`
	SASL struct {

)

func TestNSQArgs_Validate(t *testing.T) {
	type fields struct {
		Enable      bool
		NSQDAddress xnet.Host
		Topic       string
		TLS         struct {
			Enable     bool
			SkipVerify bool
		}
	}
	tests := []struct {
		name    string
		fields  fields
		wantErr bool
	}{
		{
			name: "test1_missing_topic",
			fields: fields{
				Enable: true,
				NSQDAddress: xnet.Host{

			Version: getCfgVal(EnvKafkaVersion, k, kv.Get(KafkaVersion)),
		}

		kafkaArgs.TLS.Enable = getCfgVal(EnvKafkaTLS, k, kv.Get(KafkaTLS)) == config.EnableOn
		kafkaArgs.TLS.SkipVerify = getCfgVal(EnvKafkaTLSSkipVerify, k, kv.Get(KafkaTLSSkipVerify)) == config.EnableOn
		kafkaArgs.TLS.ClientAuth = tls.ClientAuthType(clientAuth)

		if k != config.Default {
			tlsClientTLSKeyEnv = tlsClientTLSKeyEnv + config.Default + k
		}

		kafkaArgs.TLS.Enable = env.Get(tlsEnableEnv, kv.Get(target.KafkaTLS)) == config.EnableOn
		kafkaArgs.TLS.SkipVerify = env.Get(tlsSkipVerifyEnv, kv.Get(target.KafkaTLSSkipVerify)) == config.EnableOn
		kafkaArgs.TLS.ClientAuth = tls.ClientAuthType(clientAuth)