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package dhcpv4
import (
"testing"
"github.com/stretchr/testify/require"
)
func TestOptTFTPServerNameCode(t *testing.T) {
opt := OptTFTPServerName{}
require.Equal(t, OptionTFTPServerName, opt.Code())
}
func TestOptTFTPServerNameToBytes(t *testing.T) {
opt := OptTFTPServerName{
TFTPServerName: []byte("linuxboot"),
}
data := opt.ToBytes()
expected := []byte{
66, // OptionTFTPServerName
9, // length
'l', 'i', 'n', 'u', 'x', 'b', 'o', 'o', 't',
}
require.Equal(t, expected, data)
}
func TestParseOptTFTPServerName(t *testing.T) {
expected := []byte{
66, 9, 'l', 'i', 'n', 'u', 'x', 'b', 'o', 'o', 't',
}
opt, err := ParseOptTFTPServerName(expected)
require.NoError(t, err)
require.Equal(t, 9, opt.Length())
require.Equal(t, "linuxboot", string(opt.TFTPServerName))
}
func TestParseOptTFTPServerNameZeroLength(t *testing.T) {
expected := []byte{
66, 0,
}
_, err := ParseOptTFTPServerName(expected)
require.Error(t, err)
}
func TestParseOptTFTPServerNameInvalidLength(t *testing.T) {
expected := []byte{
66, 9, 'l', 'i', 'n', 'u', 'x', 'b',
}
_, err := ParseOptTFTPServerName(expected)
require.Error(t, err)
}
func TestParseOptTFTPServerNameShortLength(t *testing.T) {
expected := []byte{
66, 4, 'l', 'i', 'n', 'u', 'x',
}
opt, err := ParseOptTFTPServerName(expected)
require.NoError(t, err)
require.Equal(t, []byte("linu"), opt.TFTPServerName)
}
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