diff --git a/respond/respond_test.go b/respond/respond_test.go
new file mode 100644
index 00000000..73c04150
--- /dev/null
+++ b/respond/respond_test.go
@@ -0,0 +1,20 @@
+package respond
+
+import (
+	"net"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestNewRespone(t *testing.T) {
+	assert := assert.New(t)
+
+	addr, err := net.ResolveUDPAddr("udp6", "[fe80::2]:8080")
+	assert.NoError(err)
+
+	data, err := NewRespone(nil, addr)
+	assert.NoError(err)
+	assert.Equal("[fe80::2]:8080", data.Address.String())
+	assert.Equal([]uint8{0xca, 0x2b, 0xcd, 0xc9, 0xe1, 0x2, 0x0, 0x0, 0x0, 0xff, 0xff}, data.Raw)
+}