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package dhcpv4
import (
"net"
"testing"
"github.com/stretchr/testify/require"
)
func TestOptBroadcastAddress(t *testing.T) {
ip := net.IP{192, 168, 0, 1}
o := OptBroadcastAddress(ip)
require.Equal(t, OptionBroadcastAddress, o.Code, "Code")
require.Equal(t, []byte(ip), o.Value.ToBytes(), "ToBytes")
require.Equal(t, "Broadcast Address: 192.168.0.1", o.String(), "String")
}
func TestGetIPs(t *testing.T) {
o := Options{102: []byte{}}
i := GetIPs(optionCode(102), o)
require.Nil(t, i)
o = Options{102: []byte{192, 168, 0}}
i = GetIPs(optionCode(102), o)
require.Nil(t, i)
o = Options{102: []byte{192, 168, 0, 1}}
i = GetIPs(optionCode(102), o)
require.Equal(t, i, []net.IP{{192, 168, 0, 1}})
o = Options{102: []byte{192, 168, 0, 1, 192, 168, 0, 2}}
i = GetIPs(optionCode(102), o)
require.Equal(t, i, []net.IP{{192, 168, 0, 1}, {192, 168, 0, 2}})
}
func TestParseIP(t *testing.T) {
var ip IP
err := ip.FromBytes([]byte{})
require.Error(t, err, "empty byte stream")
err = ip.FromBytes([]byte{192, 168, 0})
require.Error(t, err, "wrong IP length")
err = ip.FromBytes([]byte{192, 168, 0, 1})
require.NoError(t, err)
require.Equal(t, net.IP{192, 168, 0, 1}, net.IP(ip))
}
func TestOptRequestedIPAddress(t *testing.T) {
ip := net.IP{192, 168, 0, 1}
o := OptRequestedIPAddress(ip)
require.Equal(t, OptionRequestedIPAddress, o.Code, "Code")
require.Equal(t, []byte(ip), o.Value.ToBytes(), "ToBytes")
require.Equal(t, "Requested IP Address: 192.168.0.1", o.String(), "String")
}
func TestOptServerIdentifier(t *testing.T) {
ip := net.IP{192, 168, 0, 1}
o := OptServerIdentifier(ip)
require.Equal(t, OptionServerIdentifier, o.Code, "Code")
require.Equal(t, []byte(ip), o.Value.ToBytes(), "ToBytes")
require.Equal(t, "Server Identifier: 192.168.0.1", o.String(), "String")
}
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