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package dhcpv4
import (
"testing"
"github.com/stretchr/testify/require"
)
func TestOptMaximumDHCPMessageSize(t *testing.T) {
o := OptMaxMessageSize(1500)
require.Equal(t, OptionMaximumDHCPMessageSize, o.Code, "Code")
require.Equal(t, []byte{5, 220}, o.Value.ToBytes(), "ToBytes")
require.Equal(t, "Maximum DHCP Message Size: 1500", o.String())
}
func TestGetMaximumDHCPMessageSize(t *testing.T) {
options := Options{OptionMaximumDHCPMessageSize.Code(): []byte{5, 220}}
o, err := GetMaxMessageSize(options)
require.NoError(t, err)
require.Equal(t, uint16(1500), o)
// Short byte stream
options = Options{OptionMaximumDHCPMessageSize.Code(): []byte{2}}
_, err = GetMaxMessageSize(options)
require.Error(t, err, "should get error from short byte stream")
// Bad length
options = Options{OptionMaximumDHCPMessageSize.Code(): []byte{1, 1, 1}}
_, err = GetMaxMessageSize(options)
require.Error(t, err, "should get error from bad length")
}
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