add dhcp6 layer test

packets/dhcp6_layer_test.go

@@ -0,0 +1,29 @@
+package packets
+
+import (
+	"github.com/google/gopacket"
+	"testing"
+)
+
+func TestDHCPv6Layer(t *testing.T) {
+	layer := DHCPv6Layer{}
+
+	exp := 0
+	got := len(layer.Raw)
+
+	if exp != got {
+		t.Fatalf("expected '%v', got '%v'", exp, got)
+	}
+}
+
+func TestDHCP6SerializeTo(t *testing.T) {
+	layer := DHCPv6Layer{}
+	buffer := gopacket.NewSerializeBuffer()
+	opts := gopacket.SerializeOptions{}
+
+	got := layer.SerializeTo(buffer, opts)
+
+	if got != nil {
+		t.Fatalf("expected '%v', got '%v'", nil, got)
+	}
+}