diff --git a/route/RouteCost_test.go b/route/RouteCost_test.go
new file mode 100644
index 0000000..bf4d5b3
--- /dev/null
+++ b/route/RouteCost_test.go
@@ -0,0 +1,81 @@
+// Package route
+// @Author: Wang Feng
+// @Description:
+// @Version: 0.1.0
+// @Date: 2022/5/26 12:02
+// @Copyright: MIN-Group；国家重大科技基础设施——未来网络北大实验室；深圳市信息论与未来网络重点实验室
+//
+
+package route
+
+import (
+	"bytes"
+	"fmt"
+	"minlib/encoding"
+	"testing"
+)
+
+//
+//  TestRouteCost_SetRouteCost
+//  @Description: 测试设置属性
+//  @param t
+//
+func TestRouteCost_SetRouteCost(t *testing.T) {
+	lsaSequenceNumber := RouteCost{}
+	lsaSequenceNumber.SetRouteCost(77)
+	if lsaSequenceNumber.RouteCost() != 77 {
+		t.Fatal("RouteCost设置失败")
+	}
+}
+
+//
+//  TestRouteCost_WireEncode
+//  @Description: 测试编码
+//  @param t
+//
+func TestRouteCost_WireEncode(t *testing.T) {
+	linkCost := RouteCost{}
+	linkCost.SetRouteCost(1234)
+
+	encoder := encoding.Encoder{}
+	encoder.EncoderReset(encoding.MaxPacketSize, 0)
+	length, err := linkCost.WireEncode(&encoder)
+	if err != nil {
+		t.Fatal("RouteCost编码失败", err.Error())
+	}
+
+	buf, err := encoder.GetBuffer()
+	if err != nil {
+		t.Fatal("RouteCost获取buffer结果失败", err.Error())
+	}
+
+	res := []byte{241, 1, 186, 2, 4, 210}
+	if length != 6 || !bytes.Equal(buf, res) {
+		fmt.Println("buf: ", buf)
+		fmt.Println("res: ", res)
+		t.Fatal("RouteCost编码内容错误", length, buf)
+	}
+}
+
+//
+//  TestRouteCost_WireDecode
+//  @Description: 测试解码
+//  @param t
+//
+func TestRouteCost_WireDecode(t *testing.T) {
+	var buf [6]byte = [6]byte{241, 1, 186, 2, 4, 210}
+	block, err := encoding.CreateBlockByBuffer(buf[:], true)
+	if err != nil {
+		t.Fatal("RouteCost创建Block失败", err.Error())
+	}
+
+	linkCost := RouteCost{}
+	err = linkCost.WireDecode(block)
+	if err != nil {
+		t.Fatal("RouteCost解码失败", err.Error())
+	}
+
+	if linkCost.RouteCost() != 1234 {
+		t.Fatal("RouteCost解码内容错误", linkCost.RouteCost())
+	}
+}