mirror of
https://github.com/autc04/Retro68.git
synced 2024-11-28 05:51:04 +00:00
303 lines
8.3 KiB
Go
303 lines
8.3 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 base32
|
|
|
|
import (
|
|
"bytes"
|
|
"io"
|
|
"io/ioutil"
|
|
"strings"
|
|
"testing"
|
|
)
|
|
|
|
type testpair struct {
|
|
decoded, encoded string
|
|
}
|
|
|
|
var pairs = []testpair{
|
|
// RFC 4648 examples
|
|
{"", ""},
|
|
{"f", "MY======"},
|
|
{"fo", "MZXQ===="},
|
|
{"foo", "MZXW6==="},
|
|
{"foob", "MZXW6YQ="},
|
|
{"fooba", "MZXW6YTB"},
|
|
{"foobar", "MZXW6YTBOI======"},
|
|
|
|
// Wikipedia examples, converted to base32
|
|
{"sure.", "ON2XEZJO"},
|
|
{"sure", "ON2XEZI="},
|
|
{"sur", "ON2XE==="},
|
|
{"su", "ON2Q===="},
|
|
{"leasure.", "NRSWC43VOJSS4==="},
|
|
{"easure.", "MVQXG5LSMUXA===="},
|
|
{"asure.", "MFZXK4TFFY======"},
|
|
{"sure.", "ON2XEZJO"},
|
|
}
|
|
|
|
var bigtest = testpair{
|
|
"Twas brillig, and the slithy toves",
|
|
"KR3WC4ZAMJZGS3DMNFTSYIDBNZSCA5DIMUQHG3DJORUHSIDUN53GK4Y=",
|
|
}
|
|
|
|
func testEqual(t *testing.T, msg string, args ...interface{}) bool {
|
|
if args[len(args)-2] != args[len(args)-1] {
|
|
t.Errorf(msg, args...)
|
|
return false
|
|
}
|
|
return true
|
|
}
|
|
|
|
func TestEncode(t *testing.T) {
|
|
for _, p := range pairs {
|
|
got := StdEncoding.EncodeToString([]byte(p.decoded))
|
|
testEqual(t, "Encode(%q) = %q, want %q", p.decoded, got, p.encoded)
|
|
}
|
|
}
|
|
|
|
func TestEncoder(t *testing.T) {
|
|
for _, p := range pairs {
|
|
bb := &bytes.Buffer{}
|
|
encoder := NewEncoder(StdEncoding, bb)
|
|
encoder.Write([]byte(p.decoded))
|
|
encoder.Close()
|
|
testEqual(t, "Encode(%q) = %q, want %q", p.decoded, bb.String(), p.encoded)
|
|
}
|
|
}
|
|
|
|
func TestEncoderBuffering(t *testing.T) {
|
|
input := []byte(bigtest.decoded)
|
|
for bs := 1; bs <= 12; bs++ {
|
|
bb := &bytes.Buffer{}
|
|
encoder := NewEncoder(StdEncoding, bb)
|
|
for pos := 0; pos < len(input); pos += bs {
|
|
end := pos + bs
|
|
if end > len(input) {
|
|
end = len(input)
|
|
}
|
|
n, err := encoder.Write(input[pos:end])
|
|
testEqual(t, "Write(%q) gave error %v, want %v", input[pos:end], err, error(nil))
|
|
testEqual(t, "Write(%q) gave length %v, want %v", input[pos:end], n, end-pos)
|
|
}
|
|
err := encoder.Close()
|
|
testEqual(t, "Close gave error %v, want %v", err, error(nil))
|
|
testEqual(t, "Encoding/%d of %q = %q, want %q", bs, bigtest.decoded, bb.String(), bigtest.encoded)
|
|
}
|
|
}
|
|
|
|
func TestDecode(t *testing.T) {
|
|
for _, p := range pairs {
|
|
dbuf := make([]byte, StdEncoding.DecodedLen(len(p.encoded)))
|
|
count, end, err := StdEncoding.decode(dbuf, []byte(p.encoded))
|
|
testEqual(t, "Decode(%q) = error %v, want %v", p.encoded, err, error(nil))
|
|
testEqual(t, "Decode(%q) = length %v, want %v", p.encoded, count, len(p.decoded))
|
|
if len(p.encoded) > 0 {
|
|
testEqual(t, "Decode(%q) = end %v, want %v", p.encoded, end, (p.encoded[len(p.encoded)-1] == '='))
|
|
}
|
|
testEqual(t, "Decode(%q) = %q, want %q", p.encoded,
|
|
string(dbuf[0:count]),
|
|
p.decoded)
|
|
|
|
dbuf, err = StdEncoding.DecodeString(p.encoded)
|
|
testEqual(t, "DecodeString(%q) = error %v, want %v", p.encoded, err, error(nil))
|
|
testEqual(t, "DecodeString(%q) = %q, want %q", p.encoded, string(dbuf), p.decoded)
|
|
}
|
|
}
|
|
|
|
func TestDecoder(t *testing.T) {
|
|
for _, p := range pairs {
|
|
decoder := NewDecoder(StdEncoding, strings.NewReader(p.encoded))
|
|
dbuf := make([]byte, StdEncoding.DecodedLen(len(p.encoded)))
|
|
count, err := decoder.Read(dbuf)
|
|
if err != nil && err != io.EOF {
|
|
t.Fatal("Read failed", err)
|
|
}
|
|
testEqual(t, "Read from %q = length %v, want %v", p.encoded, count, len(p.decoded))
|
|
testEqual(t, "Decoding of %q = %q, want %q", p.encoded, string(dbuf[0:count]), p.decoded)
|
|
if err != io.EOF {
|
|
count, err = decoder.Read(dbuf)
|
|
}
|
|
testEqual(t, "Read from %q = %v, want %v", p.encoded, err, io.EOF)
|
|
}
|
|
}
|
|
|
|
func TestDecoderBuffering(t *testing.T) {
|
|
for bs := 1; bs <= 12; bs++ {
|
|
decoder := NewDecoder(StdEncoding, strings.NewReader(bigtest.encoded))
|
|
buf := make([]byte, len(bigtest.decoded)+12)
|
|
var total int
|
|
for total = 0; total < len(bigtest.decoded); {
|
|
n, err := decoder.Read(buf[total : total+bs])
|
|
testEqual(t, "Read from %q at pos %d = %d, %v, want _, %v", bigtest.encoded, total, n, err, error(nil))
|
|
total += n
|
|
}
|
|
testEqual(t, "Decoding/%d of %q = %q, want %q", bs, bigtest.encoded, string(buf[0:total]), bigtest.decoded)
|
|
}
|
|
}
|
|
|
|
func TestDecodeCorrupt(t *testing.T) {
|
|
testCases := []struct {
|
|
input string
|
|
offset int // -1 means no corruption.
|
|
}{
|
|
{"", -1},
|
|
{"!!!!", 0},
|
|
{"x===", 0},
|
|
{"AA=A====", 2},
|
|
{"AAA=AAAA", 3},
|
|
{"MMMMMMMMM", 8},
|
|
{"MMMMMM", 0},
|
|
{"A=", 1},
|
|
{"AA=", 3},
|
|
{"AA==", 4},
|
|
{"AA===", 5},
|
|
{"AAAA=", 5},
|
|
{"AAAA==", 6},
|
|
{"AAAAA=", 6},
|
|
{"AAAAA==", 7},
|
|
{"A=======", 1},
|
|
{"AA======", -1},
|
|
{"AAA=====", 3},
|
|
{"AAAA====", -1},
|
|
{"AAAAA===", -1},
|
|
{"AAAAAA==", 6},
|
|
{"AAAAAAA=", -1},
|
|
{"AAAAAAAA", -1},
|
|
}
|
|
for _, tc := range testCases {
|
|
dbuf := make([]byte, StdEncoding.DecodedLen(len(tc.input)))
|
|
_, err := StdEncoding.Decode(dbuf, []byte(tc.input))
|
|
if tc.offset == -1 {
|
|
if err != nil {
|
|
t.Error("Decoder wrongly detected coruption in", tc.input)
|
|
}
|
|
continue
|
|
}
|
|
switch err := err.(type) {
|
|
case CorruptInputError:
|
|
testEqual(t, "Corruption in %q at offset %v, want %v", tc.input, int(err), tc.offset)
|
|
default:
|
|
t.Error("Decoder failed to detect corruption in", tc)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestBig(t *testing.T) {
|
|
n := 3*1000 + 1
|
|
raw := make([]byte, n)
|
|
const alpha = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
|
|
for i := 0; i < n; i++ {
|
|
raw[i] = alpha[i%len(alpha)]
|
|
}
|
|
encoded := new(bytes.Buffer)
|
|
w := NewEncoder(StdEncoding, encoded)
|
|
nn, err := w.Write(raw)
|
|
if nn != n || err != nil {
|
|
t.Fatalf("Encoder.Write(raw) = %d, %v want %d, nil", nn, err, n)
|
|
}
|
|
err = w.Close()
|
|
if err != nil {
|
|
t.Fatalf("Encoder.Close() = %v want nil", err)
|
|
}
|
|
decoded, err := ioutil.ReadAll(NewDecoder(StdEncoding, encoded))
|
|
if err != nil {
|
|
t.Fatalf("ioutil.ReadAll(NewDecoder(...)): %v", err)
|
|
}
|
|
|
|
if !bytes.Equal(raw, decoded) {
|
|
var i int
|
|
for i = 0; i < len(decoded) && i < len(raw); i++ {
|
|
if decoded[i] != raw[i] {
|
|
break
|
|
}
|
|
}
|
|
t.Errorf("Decode(Encode(%d-byte string)) failed at offset %d", n, i)
|
|
}
|
|
}
|
|
|
|
func testStringEncoding(t *testing.T, expected string, examples []string) {
|
|
for _, e := range examples {
|
|
buf, err := StdEncoding.DecodeString(e)
|
|
if err != nil {
|
|
t.Errorf("Decode(%q) failed: %v", e, err)
|
|
continue
|
|
}
|
|
if s := string(buf); s != expected {
|
|
t.Errorf("Decode(%q) = %q, want %q", e, s, expected)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestNewLineCharacters(t *testing.T) {
|
|
// Each of these should decode to the string "sure", without errors.
|
|
examples := []string{
|
|
"ON2XEZI=",
|
|
"ON2XEZI=\r",
|
|
"ON2XEZI=\n",
|
|
"ON2XEZI=\r\n",
|
|
"ON2XEZ\r\nI=",
|
|
"ON2X\rEZ\nI=",
|
|
"ON2X\nEZ\rI=",
|
|
"ON2XEZ\nI=",
|
|
"ON2XEZI\n=",
|
|
}
|
|
testStringEncoding(t, "sure", examples)
|
|
|
|
// Each of these should decode to the string "foobar", without errors.
|
|
examples = []string{
|
|
"MZXW6YTBOI======",
|
|
"MZXW6YTBOI=\r\n=====",
|
|
}
|
|
testStringEncoding(t, "foobar", examples)
|
|
}
|
|
|
|
func TestDecoderIssue4779(t *testing.T) {
|
|
encoded := `JRXXEZLNEBUXA43VNUQGI33MN5ZCA43JOQQGC3LFOQWCAY3PNZZWKY3UMV2HK4
|
|
RAMFSGS4DJONUWG2LOM4QGK3DJOQWCA43FMQQGI3YKMVUXK43NN5SCA5DFNVYG64RANFXGG2LENFSH
|
|
K3TUEB2XIIDMMFRG64TFEBSXIIDEN5WG64TFEBWWCZ3OMEQGC3DJOF2WCLRAKV2CAZLONFWQUYLEEB
|
|
WWS3TJNUQHMZLONFQW2LBAOF2WS4ZANZXXG5DSOVSCAZLYMVZGG2LUMF2GS33OEB2WY3DBNVRW6IDM
|
|
MFRG64TJOMQG42LTNEQHK5AKMFWGS4LVNFYCAZLYEBSWCIDDN5WW233EN4QGG33OONSXC5LBOQXCAR
|
|
DVNFZSAYLVORSSA2LSOVZGKIDEN5WG64RANFXAU4TFOBZGK2DFNZSGK4TJOQQGS3RAOZXWY5LQORQX
|
|
IZJAOZSWY2LUEBSXG43FEBRWS3DMOVWSAZDPNRXXEZJAMV2SAZTVM5UWC5BANZ2WY3DBBJYGC4TJMF
|
|
2HK4ROEBCXQY3FOB2GK5LSEBZWS3TUEBXWGY3BMVRWC5BAMN2XA2LEMF2GC5BANZXW4IDQOJXWSZDF
|
|
NZ2CYIDTOVXHIIDJNYFGG5LMOBQSA4LVNEQG6ZTGNFRWSYJAMRSXGZLSOVXHIIDNN5WGY2LUEBQW42
|
|
LNEBUWIIDFON2CA3DBMJXXE5LNFY==
|
|
====`
|
|
encodedShort := strings.Replace(encoded, "\n", "", -1)
|
|
|
|
dec := NewDecoder(StdEncoding, strings.NewReader(encoded))
|
|
res1, err := ioutil.ReadAll(dec)
|
|
if err != nil {
|
|
t.Errorf("ReadAll failed: %v", err)
|
|
}
|
|
|
|
dec = NewDecoder(StdEncoding, strings.NewReader(encodedShort))
|
|
var res2 []byte
|
|
res2, err = ioutil.ReadAll(dec)
|
|
if err != nil {
|
|
t.Errorf("ReadAll failed: %v", err)
|
|
}
|
|
|
|
if !bytes.Equal(res1, res2) {
|
|
t.Error("Decoded results not equal")
|
|
}
|
|
}
|
|
|
|
func BenchmarkEncodeToString(b *testing.B) {
|
|
data := make([]byte, 8192)
|
|
b.SetBytes(int64(len(data)))
|
|
for i := 0; i < b.N; i++ {
|
|
StdEncoding.EncodeToString(data)
|
|
}
|
|
}
|
|
|
|
func BenchmarkDecodeString(b *testing.B) {
|
|
data := StdEncoding.EncodeToString(make([]byte, 8192))
|
|
b.SetBytes(int64(len(data)))
|
|
for i := 0; i < b.N; i++ {
|
|
StdEncoding.DecodeString(data)
|
|
}
|
|
}
|