test case for dns config

app/dns/config_json.go

@@ -10,7 +10,7 @@ import (
 
 func (this *Config) UnmarshalJSON(data []byte) error {
 	type JsonConfig struct {
-		Servers []v2net.Address `json:"servers"`
+		Servers []v2net.AddressJson `json:"servers"`
 	}
 	jsonConfig := new(JsonConfig)
 	if err := json.Unmarshal(data, jsonConfig); err != nil {
@@ -18,7 +18,7 @@ func (this *Config) UnmarshalJSON(data []byte) error {
 	}
 	this.NameServers = make([]v2net.Destination, len(jsonConfig.Servers))
 	for idx, server := range jsonConfig.Servers {
-		this.NameServers[idx] = v2net.UDPDestination(server, v2net.Port(53))
+		this.NameServers[idx] = v2net.UDPDestination(server.Address, v2net.Port(53))
 	}
 
 	return nil

app/dns/config_json_test.go

@@ -0,0 +1,30 @@
+// +build json
+
+package dns_test
+
+import (
+	"encoding/json"
+	"testing"
+
+	. "github.com/v2ray/v2ray-core/app/dns"
+	v2net "github.com/v2ray/v2ray-core/common/net"
+	netassert "github.com/v2ray/v2ray-core/common/net/testing/assert"
+	v2testing "github.com/v2ray/v2ray-core/testing"
+	"github.com/v2ray/v2ray-core/testing/assert"
+)
+
+func TestConfigParsing(t *testing.T) {
+	v2testing.Current(t)
+
+	rawJson := `{
+    "servers": ["8.8.8.8"]
+  }`
+
+	config := new(Config)
+	err := json.Unmarshal([]byte(rawJson), config)
+	assert.Error(err).IsNil()
+	assert.Int(len(config.NameServers)).Equals(1)
+	netassert.Destination(config.NameServers[0]).IsUDP()
+	netassert.Address(config.NameServers[0].Address()).Equals(v2net.IPAddress([]byte{8, 8, 8, 8}))
+	netassert.Port(config.NameServers[0].Port()).Equals(v2net.Port(53))
+}