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// 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 mtu
import (
"net"
"testing"
"github.com/insomniacslk/dhcp/dhcpv4"
)
func TestAddServer4(t *testing.T) {
req, err := dhcpv4.NewDiscovery(net.HardwareAddr{0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff}, dhcpv4.WithRequestedOptions(dhcpv4.OptionInterfaceMTU))
if err != nil {
t.Fatal(err)
}
stub, err := dhcpv4.NewReplyFromRequest(req)
if err != nil {
t.Fatal(err)
}
mtu = 1500
resp, stop := Handler4(req, stub)
if resp == nil {
t.Fatal("plugin did not return a message")
}
if stop {
t.Error("plugin interrupted processing")
}
rMTU, err := dhcpv4.GetUint16(dhcpv4.OptionInterfaceMTU, resp.Options)
if err != nil {
t.Errorf("Failed to retrieve mtu from response")
}
if mtu != int(rMTU) {
t.Errorf("Found %d mtu, expected %d", rMTU, mtu)
}
}
func TestNotRequested4(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)
}
mtu = 1500
req.UpdateOption(dhcpv4.OptParameterRequestList(dhcpv4.OptionBroadcastAddress))
resp, stop := Handler4(req, stub)
if resp == nil {
t.Fatal("plugin did not return a message")
}
if stop {
t.Error("plugin interrupted processing")
}
if mtu, err := dhcpv4.GetUint16(dhcpv4.OptionInterfaceMTU, resp.Options); err == nil {
t.Errorf("Retrieve mtu %d in response, expected none", mtu)
}
}
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