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package dhcpv6
import (
"errors"
"fmt"
"reflect"
"testing"
"github.com/google/go-cmp/cmp"
"github.com/stretchr/testify/require"
"github.com/u-root/uio/uio"
)
func TestUserClassParseAndGetter(t *testing.T) {
for i, tt := range []struct {
buf []byte
err error
want [][]byte
}{
{
buf: joinBytes([]byte{
0, 15, // User Class
0, 19, // length
0, 8,
}, []byte("bladibla"), []byte{0, 7}, []byte("foo=bar")),
want: [][]byte{[]byte("bladibla"), []byte("foo=bar")},
},
{
buf: nil,
},
{
buf: []byte{
0, 15,
0, 0,
},
err: uio.ErrBufferTooShort,
},
{
buf: []byte{0, 15, 0},
err: uio.ErrUnreadBytes,
},
} {
t.Run(fmt.Sprintf("%d", i), func(t *testing.T) {
var mo MessageOptions
if err := mo.FromBytes(tt.buf); !errors.Is(err, tt.err) {
t.Errorf("FromBytes = %v, want %v", err, tt.err)
}
if got := mo.UserClasses(); !reflect.DeepEqual(got, tt.want) {
t.Errorf("UserClass = %v, want %v", got, tt.want)
}
if tt.want != nil {
var m MessageOptions
m.Add(&OptUserClass{UserClasses: tt.want})
got := m.ToBytes()
if diff := cmp.Diff(tt.buf, got); diff != "" {
t.Errorf("ToBytes mismatch (-want, +got): %s", diff)
}
}
})
}
}
func TestOptUserClassString(t *testing.T) {
data := []byte{
0, 9, 'l', 'i', 'n', 'u', 'x', 'b', 'o', 'o', 't',
0, 4, 't', 'e', 's', 't',
}
var opt OptUserClass
err := opt.FromBytes(data)
require.NoError(t, err)
require.Contains(
t,
opt.String(),
"User Class: [linuxboot, test]",
"String() should contain the list of user classes",
)
}
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