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|
package dhcp6opts
import (
"bytes"
"io"
"reflect"
"testing"
"github.com/mdlayher/dhcp6"
)
// TestNewIATA verifies that NewIATA creates a proper IATA value for
// input values.
func TestNewIATA(t *testing.T) {
var tests = []struct {
desc string
iaid [4]byte
options dhcp6.Options
iata *IATA
}{
{
desc: "all zero values",
iata: &IATA{},
},
{
desc: "[0 1 2 3] IAID, option client ID [0 1]",
iaid: [4]byte{0, 1, 2, 3},
options: dhcp6.Options{
dhcp6.OptionClientID: [][]byte{{0, 1}},
},
iata: &IATA{
IAID: [4]byte{0, 1, 2, 3},
Options: dhcp6.Options{
dhcp6.OptionClientID: [][]byte{{0, 1}},
},
},
},
}
for i, tt := range tests {
iata := NewIATA(tt.iaid, tt.options)
want, err := tt.iata.MarshalBinary()
if err != nil {
t.Fatal(err)
}
got, err := iata.MarshalBinary()
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(want, got) {
t.Fatalf("[%02d] test %q, unexpected IATA bytes for NewIATA(%v, %v)\n- want: %v\n- got: %v",
i, tt.desc, tt.iaid, tt.options, want, got)
}
}
}
// TestIATAUnmarshalBinary verifies that IATAUnmarshalBinary produces a
// correct IATA value or error for an input buffer.
func TestIATAUnmarshalBinary(t *testing.T) {
var tests = []struct {
buf []byte
iata *IATA
options dhcp6.Options
err error
}{
{
buf: []byte{0},
err: io.ErrUnexpectedEOF,
},
{
buf: bytes.Repeat([]byte{0}, 3),
err: io.ErrUnexpectedEOF,
},
{
buf: []byte{
1, 2, 3, 4,
0, 1, 0, 1,
},
err: dhcp6.ErrInvalidOptions,
},
{
buf: []byte{
1, 2, 3, 4,
0, 1, 0, 2, 0, 1,
},
iata: &IATA{
IAID: [4]byte{1, 2, 3, 4},
Options: dhcp6.Options{
dhcp6.OptionClientID: [][]byte{{0, 1}},
},
},
},
}
for i, tt := range tests {
iata := new(IATA)
if err := iata.UnmarshalBinary(tt.buf); err != nil {
if want, got := tt.err, err; want != got {
t.Fatalf("[%02d] unexpected error for parseIATA(%v): %v != %v",
i, tt.buf, want, got)
}
continue
}
if want, got := tt.iata, iata; !reflect.DeepEqual(want, got) {
t.Fatalf("[%02d] unexpected IATA for parseIATA(%v):\n- want: %v\n- got: %v",
i, tt.buf, want, got)
}
}
}
|
