syncthing/discover/encoding_test.go
2013-12-22 21:35:05 -05:00

139 lines
2.8 KiB
Go

package discover
import (
"bytes"
"reflect"
"testing"
)
var testdata = []struct {
data []byte
packet *Packet
err error
}{
{
[]byte{0x20, 0x12, 0x10, 0x25,
0x12, 0x34, 0x00, 0x00,
0x00, 0x00, 0x00, 0x05,
0x68, 0x65, 0x6c, 0x6c, 0x6f, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00},
&Packet{
Magic: 0x20121025,
Port: 0x1234,
ID: "hello",
},
nil,
},
{
[]byte{0x20, 0x12, 0x10, 0x25,
0x34, 0x56, 0x00, 0x00,
0x00, 0x00, 0x00, 0x08,
0x68, 0x65, 0x6c, 0x6c, 0x6f, 0x21, 0x21, 0x21,
0x00, 0x00, 0x00, 0x04,
0x01, 0x02, 0x03, 0x04},
&Packet{
Magic: 0x20121025,
Port: 0x3456,
ID: "hello!!!",
IP: []byte{1, 2, 3, 4},
},
nil,
},
{
[]byte{0x19, 0x76, 0x03, 0x09,
0x00, 0x00, 0x00, 0x06,
0x68, 0x65, 0x6c, 0x6c, 0x6f, 0x21, 0x00, 0x00},
&Packet{
Magic: 0x19760309,
ID: "hello!",
},
nil,
},
{
[]byte{0x20, 0x12, 0x10, 0x25,
0x12, 0x34, 0x12, 0x34, // reserved bits not set to zero
0x00, 0x00, 0x00, 0x06,
0x68, 0x65, 0x6c, 0x6c, 0x6f, 0x21, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00},
nil,
errFormat,
},
{
[]byte{0x20, 0x12, 0x10, 0x25,
0x12, 0x34, 0x00, 0x00,
0x00, 0x00, 0x00, 0x06,
0x68, 0x65, 0x6c, 0x6c, 0x6f, 0x21, // missing padding
0x00, 0x00, 0x00, 0x00},
nil,
errFormat,
},
{
[]byte{0x19, 0x77, 0x03, 0x09, // incorrect Magic
0x00, 0x00, 0x00, 0x06,
0x68, 0x65, 0x6c, 0x6c, 0x6f, 0x21, 0x00, 0x00},
nil,
errBadMagic,
},
{
[]byte{0x19, 0x76, 0x03, 0x09,
0x6c, 0x6c, 0x6c, 0x6c, // length exceeds packet size
0x68, 0x65, 0x6c, 0x6c, 0x6f, 0x21, 0x00, 0x00},
nil,
errFormat,
},
{
[]byte{0x19, 0x76, 0x03, 0x09,
0x00, 0x00, 0x00, 0x06,
0x68, 0x65, 0x6c, 0x6c, 0x6f, 0x21, 0x00, 0x00,
0x23}, // extra data at the end
nil,
errFormat,
},
}
func TestDecodePacket(t *testing.T) {
for i, test := range testdata {
p, err := DecodePacket(test.data)
if err != test.err {
t.Errorf("%d: unexpected error %v", i, err)
} else {
if !reflect.DeepEqual(p, test.packet) {
t.Errorf("%d: incorrect packet\n%v\n%v", i, test.packet, p)
}
}
}
}
func TestEncodePacket(t *testing.T) {
for i, test := range testdata {
if test.err != nil {
continue
}
buf := EncodePacket(*test.packet)
if bytes.Compare(buf, test.data) != 0 {
t.Errorf("%d: incorrect encoded packet\n% x\n% 0x", i, test.data, buf)
}
}
}
var ipstrTests = []struct {
d []byte
s string
}{
{[]byte{192, 168, 34}, ""},
{[]byte{192, 168, 0, 34}, "192.168.0.34"},
{[]byte{0x20, 0x01, 0x12, 0x34,
0x34, 0x56, 0x56, 0x78,
0x78, 0x00, 0x00, 0xdc,
0x00, 0x00, 0x43, 0x54}, "2001:1234:3456:5678:7800:00dc:0000:4354"},
}
func TestIPStr(t *testing.T) {
for _, tc := range ipstrTests {
s1 := ipStr(tc.d)
if s1 != tc.s {
t.Errorf("Incorrect ipstr %q != %q", tc.s, s1)
}
}
}