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package ber
import (
"bytes"
"math"
"io"
"testing"
)
func TestEncodeDecodeInteger(t *testing.T) {
for _, v := range []int64{0, 10, 128, 1024, math.MaxInt64, -1, -100, -128, -1024, math.MinInt64} {
enc := encodeInteger(v)
dec, err := parseInt64(enc)
if err != nil {
t.Fatalf("Error decoding %d : %s", v, err)
}
if v != dec {
t.Error("TestEncodeDecodeInteger failed for %d (got %d)", v, dec)
}
}
}
func TestBoolean(t *testing.T) {
var value bool = true
packet := NewBoolean(ClassUniversal, TypePrimitive, TagBoolean, value, "first Packet, True")
newBoolean, ok := packet.Value.(bool)
if !ok || newBoolean != value {
t.Error("error during creating packet")
}
encodedPacket := packet.Bytes()
newPacket := DecodePacket(encodedPacket)
newBoolean, ok = newPacket.Value.(bool)
if !ok || newBoolean != value {
t.Error("error during decoding packet")
}
}
func TestInteger(t *testing.T) {
var value int64 = 10
packet := NewInteger(ClassUniversal, TypePrimitive, TagInteger, value, "Integer, 10")
{
newInteger, ok := packet.Value.(int64)
if !ok || newInteger != value {
t.Error("error creating packet")
}
}
encodedPacket := packet.Bytes()
newPacket := DecodePacket(encodedPacket)
{
newInteger, ok := newPacket.Value.(int64)
if !ok || int64(newInteger) != value {
t.Error("error decoding packet")
}
}
}
func TestString(t *testing.T) {
var value string = "Hic sunt dracones"
packet := NewString(ClassUniversal, TypePrimitive, TagOctetString, value, "String")
newValue, ok := packet.Value.(string)
if !ok || newValue != value {
t.Error("error during creating packet")
}
encodedPacket := packet.Bytes()
newPacket := DecodePacket(encodedPacket)
newValue, ok = newPacket.Value.(string)
if !ok || newValue != value {
t.Error("error during decoding packet")
}
}
func TestSequenceAndAppendChild(t *testing.T) {
values := []string{
"HIC SVNT LEONES",
"Iñtërnâtiônàlizætiøn",
"Terra Incognita",
}
sequence := NewSequence("a sequence")
for _, s := range values {
sequence.AppendChild(NewString(ClassUniversal, TypePrimitive, TagOctetString, s, "String"))
}
if len(sequence.Children) != len(values) {
t.Errorf("wrong length for children array should be %d, got %d", len(values), len(sequence.Children))
}
encodedSequence := sequence.Bytes()
decodedSequence := DecodePacket(encodedSequence)
if len(decodedSequence.Children) != len(values) {
t.Errorf("wrong length for children array should be %d => %d", len(values), len(decodedSequence.Children))
}
for i, s := range values {
if decodedSequence.Children[i].Value.(string) != s {
t.Errorf("expected %d to be %q, got %q", i, s, decodedSequence.Children[i].Value.(string))
}
}
}
func TestReadPacket(t *testing.T) {
packet := NewString(ClassUniversal, TypePrimitive, TagOctetString, "Ad impossibilia nemo tenetur", "string")
var buffer io.ReadWriter
buffer = new(bytes.Buffer)
buffer.Write(packet.Bytes())
newPacket, err := ReadPacket(buffer)
if err != nil {
t.Error("error during ReadPacket", err)
}
newPacket.ByteValue = nil
if !bytes.Equal(newPacket.ByteValue, packet.ByteValue) {
t.Error("packets should be the same")
}
}
func TestBinaryInteger(t *testing.T) {
// data src : http://luca.ntop.org/Teaching/Appunti/asn1.html 5.7
var data = []struct {
v int64
e []byte
}{
{v: 0, e: []byte{0x02, 0x01, 0x00}},
{v: 127, e: []byte{0x02, 0x01, 0x7F}},
{v: 128, e: []byte{0x02, 0x02, 0x00, 0x80}},
{v: 256, e: []byte{0x02, 0x02, 0x01, 0x00}},
{v: -128, e: []byte{0x02, 0x01, 0x80}},
{v: -129, e: []byte{0x02, 0x02, 0xFF, 0x7F}},
{v: math.MaxInt64, e: []byte{0x02, 0x08, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}},
{v: math.MinInt64, e: []byte{0x02, 0x08, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}},
}
for _, d := range data {
if b := NewInteger(ClassUniversal, TypePrimitive, TagInteger, int64(d.v), "").Bytes(); !bytes.Equal(d.e, b) {
t.Errorf("Wrong binary generated for %d : got % X, expected % X", d.v, b, d.e)
}
}
}
func TestBinaryOctetString(t *testing.T) {
// data src : http://luca.ntop.org/Teaching/Appunti/asn1.html 5.10
if !bytes.Equal([]byte{0x04, 0x08, 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef}, NewString(ClassUniversal, TypePrimitive, TagOctetString, "\x01\x23\x45\x67\x89\xab\xcd\xef", "").Bytes()) {
t.Error("wrong binary generated")
}
}
|
