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|
package dhcp6opts
import (
"bytes"
"io"
"reflect"
"testing"
"time"
"github.com/mdlayher/dhcp6"
)
// TestNewIANA verifies that NewIANA creates a proper IANA value for
// input values.
func TestNewIANA(t *testing.T) {
var tests = []struct {
desc string
iaid [4]byte
t1 time.Duration
t2 time.Duration
options dhcp6.Options
iana *IANA
}{
{
desc: "all zero values",
iana: &IANA{},
},
{
desc: "[0 1 2 3] IAID, 30s T1, 60s T2, option client ID [0 1]",
iaid: [4]byte{0, 1, 2, 3},
t1: 30 * time.Second,
t2: 60 * time.Second,
options: dhcp6.Options{
dhcp6.OptionClientID: [][]byte{{0, 1}},
},
iana: &IANA{
IAID: [4]byte{0, 1, 2, 3},
T1: 30 * time.Second,
T2: 60 * time.Second,
Options: dhcp6.Options{
dhcp6.OptionClientID: [][]byte{{0, 1}},
},
},
},
}
for i, tt := range tests {
iana := NewIANA(tt.iaid, tt.t1, tt.t2, tt.options)
want, err := tt.iana.MarshalBinary()
if err != nil {
t.Fatal(err)
}
got, err := iana.MarshalBinary()
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(want, got) {
t.Fatalf("[%02d] test %q, unexpected IANA bytes for NewIANA(%v, %v, %v, %v)\n- want: %v\n- got: %v",
i, tt.desc, tt.iaid, tt.t1, tt.t2, tt.options, want, got)
}
}
}
// TestIANAMarshalBinary verifies that IANA.MarshalBinary allocates and returns a correct
// byte slice for a variety of input data.
func TestIANAMarshalBinary(t *testing.T) {
var tests = []struct {
desc string
iana *IANA
buf []byte
}{
{
desc: "empty IANA",
iana: &IANA{},
buf: []byte{
0, 0, 0, 0,
0, 0, 0, 0,
0, 0, 0, 0,
},
},
{
desc: "[1 2 3 4] IAID only",
iana: &IANA{
IAID: [4]byte{1, 2, 3, 4},
},
buf: []byte{
1, 2, 3, 4,
0, 0, 0, 0,
0, 0, 0, 0,
},
},
{
desc: "[1 2 3 4] IAID, 30s T1, 60s T2",
iana: &IANA{
IAID: [4]byte{1, 2, 3, 4},
T1: 30 * time.Second,
T2: 60 * time.Second,
},
buf: []byte{
1, 2, 3, 4,
0, 0, 0, 30,
0, 0, 0, 60,
},
},
{
desc: "[1 2 3 4] IAID, 30s T1, 60s T2, option client ID [0 1]",
iana: &IANA{
IAID: [4]byte{1, 2, 3, 4},
T1: 30 * time.Second,
T2: 60 * time.Second,
Options: dhcp6.Options{
dhcp6.OptionClientID: [][]byte{{0, 1}},
},
},
buf: []byte{
1, 2, 3, 4,
0, 0, 0, 30,
0, 0, 0, 60,
0, 1, 0, 2, 0, 1,
},
},
}
for i, tt := range tests {
got, err := tt.iana.MarshalBinary()
if err != nil {
t.Fatal(err)
}
if want := tt.buf; !bytes.Equal(want, got) {
t.Fatalf("[%02d] test %q, unexpected IANA bytes:\n- want: %v\n- got: %v",
i, tt.desc, want, got)
}
}
}
// TestIANAUnmarshalBinary verifies that IANA.UnmarshalBinary produces a correct
// IANA value or error for an input buffer.
func TestIANAUnmarshalBinary(t *testing.T) {
var tests = []struct {
buf []byte
iana *IANA
options dhcp6.Options
err error
}{
{
buf: []byte{0},
err: io.ErrUnexpectedEOF,
},
{
buf: bytes.Repeat([]byte{0}, 11),
err: io.ErrUnexpectedEOF,
},
{
buf: []byte{
1, 2, 3, 4,
0, 0, 1, 0,
0, 0, 2, 0,
0, 1, 0, 1,
},
err: dhcp6.ErrInvalidOptions,
},
{
buf: []byte{
1, 2, 3, 4,
0, 0, 1, 0,
0, 0, 2, 0,
0, 1, 0, 2, 0, 1,
},
iana: &IANA{
IAID: [4]byte{1, 2, 3, 4},
T1: (4 * time.Minute) + 16*time.Second,
T2: (8 * time.Minute) + 32*time.Second,
Options: dhcp6.Options{
dhcp6.OptionClientID: [][]byte{{0, 1}},
},
},
},
}
for i, tt := range tests {
iana := new(IANA)
if err := iana.UnmarshalBinary(tt.buf); err != nil {
if want, got := tt.err, err; want != got {
t.Fatalf("[%02d] unexpected error for parseIANA(%v): %v != %v",
i, tt.buf, want, got)
}
continue
}
if want, got := tt.iana, iana; !reflect.DeepEqual(want, got) {
t.Fatalf("[%02d] unexpected IANA for parseIANA(%v):\n- want: %v\n- got: %v",
i, tt.buf, want, got)
}
}
}
|
