add all files from Hong

plugins/ipv6only/plugin_test.go

@@ -0,0 +1,65 @@
+// Copyright 2018-present the CoreDHCP Authors. All rights reserved
+// This source code is licensed under the MIT license found in the
+// LICENSE file in the root directory of this source tree.
+
+package ipv6only
+
+import (
+	"bytes"
+	"net"
+	"testing"
+	"time"
+
+	"github.com/insomniacslk/dhcp/dhcpv4"
+)
+
+func TestOptionRequested(t *testing.T) {
+	req, err := dhcpv4.NewDiscovery(net.HardwareAddr{0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff})
+	if err != nil {
+		t.Fatal(err)
+	}
+	req.UpdateOption(dhcpv4.OptParameterRequestList(dhcpv4.OptionBroadcastAddress, dhcpv4.OptionIPv6OnlyPreferred))
+	stub, err := dhcpv4.NewReplyFromRequest(req)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	v6only_wait = 0x1234 * time.Second
+
+	resp, stop := Handler4(req, stub)
+	if resp == nil {
+		t.Fatal("plugin did not return a message")
+	}
+	if !stop {
+		t.Error("plugin did not interrupt processing")
+	}
+	opt := resp.Options.Get(dhcpv4.OptionIPv6OnlyPreferred)
+	if opt == nil {
+		t.Fatal("plugin did not return the IPv6-Only Preferred option")
+	}
+	if !bytes.Equal(opt, []byte{0x00, 0x00, 0x12, 0x34}) {
+		t.Errorf("plugin gave wrong option response: %v", opt)
+	}
+}
+
+func TestNotRequested(t *testing.T) {
+	req, err := dhcpv4.NewDiscovery(net.HardwareAddr{0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff})
+	if err != nil {
+		t.Fatal(err)
+	}
+	stub, err := dhcpv4.NewReplyFromRequest(req)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	resp, stop := Handler4(req, stub)
+	if resp == nil {
+		t.Fatal("plugin did not return a message")
+	}
+	if stop {
+		t.Error("plugin interrupted processing")
+	}
+	if resp.Options.Get(dhcpv4.OptionIPv6OnlyPreferred) != nil {
+		t.Error("Found IPv6-Only Preferred option when not requested")
+	}
+}