Add NX_PACKET_IN2 test

test/ofp_packet_in2_test.exs

@@ -0,0 +1,23 @@
+defmodule OfpPacketIn2Test do
+  use ExUnit.Case
+  doctest Openflow
+
+  describe "Openflow.read/1" do
+    test "with NX_PACKET_IN2 packet(with properties)" do
+      {:ok, pktin, ""} =
+        "test/packet_data/nx_packet_in2.raw"
+        |> File.read!()
+        |> Openflow.read()
+
+      assert pktin.version == 1
+      assert pktin.xid == 0
+      assert pktin.full_len == 64
+      assert pktin.table_id == 7
+      assert pktin.buffer_id == 0x114
+      assert pktin.cookie == 0xfedcba9876543210
+      assert pktin.reason == :action
+      assert pktin.metadata == [metadata: 0x5a5a5a5a5a5a5a5a]
+      assert pktin.userdata == <<1, 2, 3, 4, 5>>
+    end
+  end
+end