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package dhcpv4
import (
"testing"
"github.com/stretchr/testify/require"
)
func TestParseOptRelayAgentInformation(t *testing.T) {
data := []byte{
byte(OptionRelayAgentInformation),
13,
1, 5, 'l', 'i', 'n', 'u', 'x',
2, 4, 'b', 'o', 'o', 't',
}
// short bytes
opt, err := ParseOptRelayAgentInformation([]byte{})
require.Error(t, err)
// wrong code
opt, err = ParseOptRelayAgentInformation([]byte{1, 2, 1, 0})
require.Error(t, err)
// wrong option length
opt, err = ParseOptRelayAgentInformation([]byte{82, 3, 1, 0})
require.Error(t, err)
// short sub-option length
opt, err = ParseOptRelayAgentInformation([]byte{82, 2, 2, 0})
require.Error(t, err)
opt, err = ParseOptRelayAgentInformation(data)
require.NoError(t, err)
require.Equal(t, len(opt.Options), 2)
circuit, ok := opt.Options[0].(*OptionGeneric)
require.True(t, ok)
remote, ok := opt.Options[1].(*OptionGeneric)
require.True(t, ok)
require.Equal(t, circuit.Data, []byte("linux"))
require.Equal(t, remote.Data, []byte("boot"))
}
func TestParseOptRelayAgentInformationToBytes(t *testing.T) {
opt := OptRelayAgentInformation{}
opt1 := &OptionGeneric{OptionCode: 1, Data: []byte("linux")}
opt.Options = append(opt.Options, opt1)
opt2 := &OptionGeneric{OptionCode: 2, Data: []byte("boot")}
opt.Options = append(opt.Options, opt2)
data := opt.ToBytes()
expected := []byte{
byte(OptionRelayAgentInformation),
13,
1, 5, 'l', 'i', 'n', 'u', 'x',
2, 4, 'b', 'o', 'o', 't',
}
require.Equal(t, expected, data)
}
func TestOptRelayAgentInformationToBytesString(t *testing.T) {
o := OptRelayAgentInformation{}
require.Equal(t, "Relay Agent Information -> []", o.String())
}
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