150 lines
3.6 KiB
Go
150 lines
3.6 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package hex
|
|
|
|
import (
|
|
"bytes"
|
|
"testing"
|
|
)
|
|
|
|
type encDecTest struct {
|
|
enc string
|
|
dec []byte
|
|
}
|
|
|
|
var encDecTests = []encDecTest{
|
|
{"", []byte{}},
|
|
{"0001020304050607", []byte{0, 1, 2, 3, 4, 5, 6, 7}},
|
|
{"08090a0b0c0d0e0f", []byte{8, 9, 10, 11, 12, 13, 14, 15}},
|
|
{"f0f1f2f3f4f5f6f7", []byte{0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7}},
|
|
{"f8f9fafbfcfdfeff", []byte{0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff}},
|
|
{"67", []byte{'g'}},
|
|
{"e3a1", []byte{0xe3, 0xa1}},
|
|
}
|
|
|
|
func TestEncode(t *testing.T) {
|
|
for i, test := range encDecTests {
|
|
dst := make([]byte, EncodedLen(len(test.dec)))
|
|
n := Encode(dst, test.dec)
|
|
if n != len(dst) {
|
|
t.Errorf("#%d: bad return value: got: %d want: %d", i, n, len(dst))
|
|
}
|
|
if string(dst) != test.enc {
|
|
t.Errorf("#%d: got: %#v want: %#v", i, dst, test.enc)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestDecode(t *testing.T) {
|
|
for i, test := range encDecTests {
|
|
dst := make([]byte, DecodedLen(len(test.enc)))
|
|
n, err := Decode(dst, []byte(test.enc))
|
|
if err != nil {
|
|
t.Errorf("#%d: bad return value: got:%d want:%d", i, n, len(dst))
|
|
} else if !bytes.Equal(dst, test.dec) {
|
|
t.Errorf("#%d: got: %#v want: %#v", i, dst, test.dec)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestEncodeToString(t *testing.T) {
|
|
for i, test := range encDecTests {
|
|
s := EncodeToString(test.dec)
|
|
if s != test.enc {
|
|
t.Errorf("#%d got:%s want:%s", i, s, test.enc)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestDecodeString(t *testing.T) {
|
|
for i, test := range encDecTests {
|
|
dst, err := DecodeString(test.enc)
|
|
if err != nil {
|
|
t.Errorf("#%d: unexpected err value: %s", i, err)
|
|
continue
|
|
}
|
|
if bytes.Compare(dst, test.dec) != 0 {
|
|
t.Errorf("#%d: got: %#v want: #%v", i, dst, test.dec)
|
|
}
|
|
}
|
|
}
|
|
|
|
type errTest struct {
|
|
in string
|
|
err string
|
|
}
|
|
|
|
var errTests = []errTest{
|
|
{"0", "encoding/hex: odd length hex string"},
|
|
{"0g", "encoding/hex: invalid byte: U+0067 'g'"},
|
|
{"0\x01", "encoding/hex: invalid byte: U+0001"},
|
|
}
|
|
|
|
func TestInvalidErr(t *testing.T) {
|
|
for i, test := range errTests {
|
|
dst := make([]byte, DecodedLen(len(test.in)))
|
|
_, err := Decode(dst, []byte(test.in))
|
|
if err == nil {
|
|
t.Errorf("#%d: expected error; got none")
|
|
} else if err.Error() != test.err {
|
|
t.Errorf("#%d: got: %v want: %v", i, err, test.err)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestInvalidStringErr(t *testing.T) {
|
|
for i, test := range errTests {
|
|
_, err := DecodeString(test.in)
|
|
if err == nil {
|
|
t.Errorf("#%d: expected error; got none")
|
|
} else if err.Error() != test.err {
|
|
t.Errorf("#%d: got: %v want: %v", i, err, test.err)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestDumper(t *testing.T) {
|
|
var in [40]byte
|
|
for i := range in {
|
|
in[i] = byte(i + 30)
|
|
}
|
|
|
|
for stride := 1; stride < len(in); stride++ {
|
|
var out bytes.Buffer
|
|
dumper := Dumper(&out)
|
|
done := 0
|
|
for done < len(in) {
|
|
todo := done + stride
|
|
if todo > len(in) {
|
|
todo = len(in)
|
|
}
|
|
dumper.Write(in[done:todo])
|
|
done = todo
|
|
}
|
|
|
|
dumper.Close()
|
|
if !bytes.Equal(out.Bytes(), expectedHexDump) {
|
|
t.Errorf("stride: %d failed. got:\n%s\nwant:\n%s", stride, out.Bytes(), expectedHexDump)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestDump(t *testing.T) {
|
|
var in [40]byte
|
|
for i := range in {
|
|
in[i] = byte(i + 30)
|
|
}
|
|
|
|
out := []byte(Dump(in[:]))
|
|
if !bytes.Equal(out, expectedHexDump) {
|
|
t.Errorf("got:\n%s\nwant:\n%s", out, expectedHexDump)
|
|
}
|
|
}
|
|
|
|
var expectedHexDump = []byte(`00000000 1e 1f 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d |.. !"#$%&'()*+,-|
|
|
00000010 2e 2f 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d |./0123456789:;<=|
|
|
00000020 3e 3f 40 41 42 43 44 45 |>?@ABCDE|
|
|
`)
|