diff options
Diffstat (limited to 'src/pkg/encoding/base64')
-rw-r--r-- | src/pkg/encoding/base64/base64.go | 391 | ||||
-rw-r--r-- | src/pkg/encoding/base64/base64_test.go | 360 | ||||
-rw-r--r-- | src/pkg/encoding/base64/example_test.go | 45 |
3 files changed, 0 insertions, 796 deletions
diff --git a/src/pkg/encoding/base64/base64.go b/src/pkg/encoding/base64/base64.go deleted file mode 100644 index ad3abe662..000000000 --- a/src/pkg/encoding/base64/base64.go +++ /dev/null @@ -1,391 +0,0 @@ -// 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 base64 implements base64 encoding as specified by RFC 4648. -package base64 - -import ( - "bytes" - "io" - "strconv" - "strings" -) - -/* - * Encodings - */ - -// An Encoding is a radix 64 encoding/decoding scheme, defined by a -// 64-character alphabet. The most common encoding is the "base64" -// encoding defined in RFC 4648 and used in MIME (RFC 2045) and PEM -// (RFC 1421). RFC 4648 also defines an alternate encoding, which is -// the standard encoding with - and _ substituted for + and /. -type Encoding struct { - encode string - decodeMap [256]byte -} - -const encodeStd = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/" -const encodeURL = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_" - -// NewEncoding returns a new Encoding defined by the given alphabet, -// which must be a 64-byte string. -func NewEncoding(encoder string) *Encoding { - e := new(Encoding) - e.encode = encoder - for i := 0; i < len(e.decodeMap); i++ { - e.decodeMap[i] = 0xFF - } - for i := 0; i < len(encoder); i++ { - e.decodeMap[encoder[i]] = byte(i) - } - return e -} - -// StdEncoding is the standard base64 encoding, as defined in -// RFC 4648. -var StdEncoding = NewEncoding(encodeStd) - -// URLEncoding is the alternate base64 encoding defined in RFC 4648. -// It is typically used in URLs and file names. -var URLEncoding = NewEncoding(encodeURL) - -var removeNewlinesMapper = func(r rune) rune { - if r == '\r' || r == '\n' { - return -1 - } - return r -} - -/* - * Encoder - */ - -// Encode encodes src using the encoding enc, writing -// EncodedLen(len(src)) bytes to dst. -// -// The encoding pads the output to a multiple of 4 bytes, -// so Encode is not appropriate for use on individual blocks -// of a large data stream. Use NewEncoder() instead. -func (enc *Encoding) Encode(dst, src []byte) { - if len(src) == 0 { - return - } - - for len(src) > 0 { - var b0, b1, b2, b3 byte - - // Unpack 4x 6-bit source blocks into a 4 byte - // destination quantum - switch len(src) { - default: - b3 = src[2] & 0x3F - b2 = src[2] >> 6 - fallthrough - case 2: - b2 |= (src[1] << 2) & 0x3F - b1 = src[1] >> 4 - fallthrough - case 1: - b1 |= (src[0] << 4) & 0x3F - b0 = src[0] >> 2 - } - - // Encode 6-bit blocks using the base64 alphabet - dst[0] = enc.encode[b0] - dst[1] = enc.encode[b1] - dst[2] = enc.encode[b2] - dst[3] = enc.encode[b3] - - // Pad the final quantum - if len(src) < 3 { - dst[3] = '=' - if len(src) < 2 { - dst[2] = '=' - } - break - } - - src = src[3:] - dst = dst[4:] - } -} - -// EncodeToString returns the base64 encoding of src. -func (enc *Encoding) EncodeToString(src []byte) string { - buf := make([]byte, enc.EncodedLen(len(src))) - enc.Encode(buf, src) - return string(buf) -} - -type encoder struct { - err error - enc *Encoding - w io.Writer - buf [3]byte // buffered data waiting to be encoded - nbuf int // number of bytes in buf - out [1024]byte // output buffer -} - -func (e *encoder) Write(p []byte) (n int, err error) { - if e.err != nil { - return 0, e.err - } - - // Leading fringe. - if e.nbuf > 0 { - var i int - for i = 0; i < len(p) && e.nbuf < 3; i++ { - e.buf[e.nbuf] = p[i] - e.nbuf++ - } - n += i - p = p[i:] - if e.nbuf < 3 { - return - } - e.enc.Encode(e.out[0:], e.buf[0:]) - if _, e.err = e.w.Write(e.out[0:4]); e.err != nil { - return n, e.err - } - e.nbuf = 0 - } - - // Large interior chunks. - for len(p) >= 3 { - nn := len(e.out) / 4 * 3 - if nn > len(p) { - nn = len(p) - nn -= nn % 3 - } - e.enc.Encode(e.out[0:], p[0:nn]) - if _, e.err = e.w.Write(e.out[0 : nn/3*4]); e.err != nil { - return n, e.err - } - n += nn - p = p[nn:] - } - - // Trailing fringe. - for i := 0; i < len(p); i++ { - e.buf[i] = p[i] - } - e.nbuf = len(p) - n += len(p) - return -} - -// Close flushes any pending output from the encoder. -// It is an error to call Write after calling Close. -func (e *encoder) Close() error { - // If there's anything left in the buffer, flush it out - if e.err == nil && e.nbuf > 0 { - e.enc.Encode(e.out[0:], e.buf[0:e.nbuf]) - e.nbuf = 0 - _, e.err = e.w.Write(e.out[0:4]) - } - return e.err -} - -// NewEncoder returns a new base64 stream encoder. Data written to -// the returned writer will be encoded using enc and then written to w. -// Base64 encodings operate in 4-byte blocks; when finished -// writing, the caller must Close the returned encoder to flush any -// partially written blocks. -func NewEncoder(enc *Encoding, w io.Writer) io.WriteCloser { - return &encoder{enc: enc, w: w} -} - -// EncodedLen returns the length in bytes of the base64 encoding -// of an input buffer of length n. -func (enc *Encoding) EncodedLen(n int) int { return (n + 2) / 3 * 4 } - -/* - * Decoder - */ - -type CorruptInputError int64 - -func (e CorruptInputError) Error() string { - return "illegal base64 data at input byte " + strconv.FormatInt(int64(e), 10) -} - -// decode is like Decode but returns an additional 'end' value, which -// indicates if end-of-message padding was encountered and thus any -// additional data is an error. This method assumes that src has been -// stripped of all supported whitespace ('\r' and '\n'). -func (enc *Encoding) decode(dst, src []byte) (n int, end bool, err error) { - olen := len(src) - for len(src) > 0 && !end { - // Decode quantum using the base64 alphabet - var dbuf [4]byte - dlen := 4 - - for j := range dbuf { - if len(src) == 0 { - return n, false, CorruptInputError(olen - len(src) - j) - } - in := src[0] - src = src[1:] - if in == '=' { - // We've reached the end and there's padding - switch j { - case 0, 1: - // incorrect padding - return n, false, CorruptInputError(olen - len(src) - 1) - case 2: - // "==" is expected, the first "=" is already consumed. - if len(src) == 0 { - // not enough padding - return n, false, CorruptInputError(olen) - } - if src[0] != '=' { - // incorrect padding - return n, false, CorruptInputError(olen - len(src) - 1) - } - src = src[1:] - } - if len(src) > 0 { - // trailing garbage - err = CorruptInputError(olen - len(src)) - } - dlen, end = j, true - break - } - dbuf[j] = enc.decodeMap[in] - if dbuf[j] == 0xFF { - return n, false, CorruptInputError(olen - len(src) - 1) - } - } - - // Pack 4x 6-bit source blocks into 3 byte destination - // quantum - switch dlen { - case 4: - dst[2] = dbuf[2]<<6 | dbuf[3] - fallthrough - case 3: - dst[1] = dbuf[1]<<4 | dbuf[2]>>2 - fallthrough - case 2: - dst[0] = dbuf[0]<<2 | dbuf[1]>>4 - } - dst = dst[3:] - n += dlen - 1 - } - - return n, end, err -} - -// Decode decodes src using the encoding enc. It writes at most -// DecodedLen(len(src)) bytes to dst and returns the number of bytes -// written. If src contains invalid base64 data, it will return the -// number of bytes successfully written and CorruptInputError. -// New line characters (\r and \n) are ignored. -func (enc *Encoding) Decode(dst, src []byte) (n int, err error) { - src = bytes.Map(removeNewlinesMapper, src) - n, _, err = enc.decode(dst, src) - return -} - -// DecodeString returns the bytes represented by the base64 string s. -func (enc *Encoding) DecodeString(s string) ([]byte, error) { - s = strings.Map(removeNewlinesMapper, s) - dbuf := make([]byte, enc.DecodedLen(len(s))) - n, _, err := enc.decode(dbuf, []byte(s)) - return dbuf[:n], err -} - -type decoder struct { - err error - enc *Encoding - r io.Reader - end bool // saw end of message - buf [1024]byte // leftover input - nbuf int - out []byte // leftover decoded output - outbuf [1024 / 4 * 3]byte -} - -func (d *decoder) Read(p []byte) (n int, err error) { - if d.err != nil { - return 0, d.err - } - - // Use leftover decoded output from last read. - if len(d.out) > 0 { - n = copy(p, d.out) - d.out = d.out[n:] - return n, nil - } - - // Read a chunk. - nn := len(p) / 3 * 4 - if nn < 4 { - nn = 4 - } - if nn > len(d.buf) { - nn = len(d.buf) - } - nn, d.err = io.ReadAtLeast(d.r, d.buf[d.nbuf:nn], 4-d.nbuf) - d.nbuf += nn - if d.err != nil || d.nbuf < 4 { - return 0, d.err - } - - // Decode chunk into p, or d.out and then p if p is too small. - nr := d.nbuf / 4 * 4 - nw := d.nbuf / 4 * 3 - if nw > len(p) { - nw, d.end, d.err = d.enc.decode(d.outbuf[0:], d.buf[0:nr]) - d.out = d.outbuf[0:nw] - n = copy(p, d.out) - d.out = d.out[n:] - } else { - n, d.end, d.err = d.enc.decode(p, d.buf[0:nr]) - } - d.nbuf -= nr - for i := 0; i < d.nbuf; i++ { - d.buf[i] = d.buf[i+nr] - } - - if d.err == nil { - d.err = err - } - return n, d.err -} - -type newlineFilteringReader struct { - wrapped io.Reader -} - -func (r *newlineFilteringReader) Read(p []byte) (int, error) { - n, err := r.wrapped.Read(p) - for n > 0 { - offset := 0 - for i, b := range p[0:n] { - if b != '\r' && b != '\n' { - if i != offset { - p[offset] = b - } - offset++ - } - } - if offset > 0 { - return offset, err - } - // Previous buffer entirely whitespace, read again - n, err = r.wrapped.Read(p) - } - return n, err -} - -// NewDecoder constructs a new base64 stream decoder. -func NewDecoder(enc *Encoding, r io.Reader) io.Reader { - return &decoder{enc: enc, r: &newlineFilteringReader{r}} -} - -// DecodedLen returns the maximum length in bytes of the decoded data -// corresponding to n bytes of base64-encoded data. -func (enc *Encoding) DecodedLen(n int) int { return n / 4 * 3 } diff --git a/src/pkg/encoding/base64/base64_test.go b/src/pkg/encoding/base64/base64_test.go deleted file mode 100644 index 7d199bfa0..000000000 --- a/src/pkg/encoding/base64/base64_test.go +++ /dev/null @@ -1,360 +0,0 @@ -// 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 base64 - -import ( - "bytes" - "errors" - "io" - "io/ioutil" - "reflect" - "strings" - "testing" - "time" -) - -type testpair struct { - decoded, encoded string -} - -var pairs = []testpair{ - // RFC 3548 examples - {"\x14\xfb\x9c\x03\xd9\x7e", "FPucA9l+"}, - {"\x14\xfb\x9c\x03\xd9", "FPucA9k="}, - {"\x14\xfb\x9c\x03", "FPucAw=="}, - - // RFC 4648 examples - {"", ""}, - {"f", "Zg=="}, - {"fo", "Zm8="}, - {"foo", "Zm9v"}, - {"foob", "Zm9vYg=="}, - {"fooba", "Zm9vYmE="}, - {"foobar", "Zm9vYmFy"}, - - // Wikipedia examples - {"sure.", "c3VyZS4="}, - {"sure", "c3VyZQ=="}, - {"sur", "c3Vy"}, - {"su", "c3U="}, - {"leasure.", "bGVhc3VyZS4="}, - {"easure.", "ZWFzdXJlLg=="}, - {"asure.", "YXN1cmUu"}, - {"sure.", "c3VyZS4="}, -} - -var bigtest = testpair{ - "Twas brillig, and the slithy toves", - "VHdhcyBicmlsbGlnLCBhbmQgdGhlIHNsaXRoeSB0b3Zlcw==", -} - -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", 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}, - {"====", 0}, - {"x===", 1}, - {"=AAA", 0}, - {"A=AA", 1}, - {"AA=A", 2}, - {"AA==A", 4}, - {"AAA=AAAA", 4}, - {"AAAAA", 4}, - {"AAAAAA", 4}, - {"A=", 1}, - {"A==", 1}, - {"AA=", 3}, - {"AA==", -1}, - {"AAA=", -1}, - {"AAAA", -1}, - {"AAAAAA=", 7}, - {"YWJjZA=====", 8}, - } - 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 TestNewLineCharacters(t *testing.T) { - // Each of these should decode to the string "sure", without errors. - const expected = "sure" - examples := []string{ - "c3VyZQ==", - "c3VyZQ==\r", - "c3VyZQ==\n", - "c3VyZQ==\r\n", - "c3VyZ\r\nQ==", - "c3V\ryZ\nQ==", - "c3V\nyZ\rQ==", - "c3VyZ\nQ==", - "c3VyZQ\n==", - "c3VyZQ=\n=", - "c3VyZQ=\r\n\r\n=", - } - 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) - } - } -} - -type nextRead struct { - n int // bytes to return - err error // error to return -} - -// faultInjectReader returns data from source, rate-limited -// and with the errors as written to nextc. -type faultInjectReader struct { - source string - nextc <-chan nextRead -} - -func (r *faultInjectReader) Read(p []byte) (int, error) { - nr := <-r.nextc - if len(p) > nr.n { - p = p[:nr.n] - } - n := copy(p, r.source) - r.source = r.source[n:] - return n, nr.err -} - -// tests that we don't ignore errors from our underlying reader -func TestDecoderIssue3577(t *testing.T) { - next := make(chan nextRead, 10) - wantErr := errors.New("my error") - next <- nextRead{5, nil} - next <- nextRead{10, wantErr} - next <- nextRead{0, wantErr} - d := NewDecoder(StdEncoding, &faultInjectReader{ - source: "VHdhcyBicmlsbGlnLCBhbmQgdGhlIHNsaXRoeSB0b3Zlcw==", // twas brillig... - nextc: next, - }) - errc := make(chan error) - go func() { - _, err := ioutil.ReadAll(d) - errc <- err - }() - select { - case err := <-errc: - if err != wantErr { - t.Errorf("got error %v; want %v", err, wantErr) - } - case <-time.After(5 * time.Second): - t.Errorf("timeout; Decoder blocked without returning an error") - } -} - -func TestDecoderIssue4779(t *testing.T) { - encoded := `CP/EAT8AAAEF -AQEBAQEBAAAAAAAAAAMAAQIEBQYHCAkKCwEAAQUBAQEBAQEAAAAAAAAAAQACAwQFBgcICQoLEAAB -BAEDAgQCBQcGCAUDDDMBAAIRAwQhEjEFQVFhEyJxgTIGFJGhsUIjJBVSwWIzNHKC0UMHJZJT8OHx -Y3M1FqKygyZEk1RkRcKjdDYX0lXiZfKzhMPTdePzRieUpIW0lcTU5PSltcXV5fVWZnaGlqa2xtbm -9jdHV2d3h5ent8fX5/cRAAICAQIEBAMEBQYHBwYFNQEAAhEDITESBEFRYXEiEwUygZEUobFCI8FS -0fAzJGLhcoKSQ1MVY3M08SUGFqKygwcmNcLSRJNUoxdkRVU2dGXi8rOEw9N14/NGlKSFtJXE1OT0 -pbXF1eX1VmZ2hpamtsbW5vYnN0dXZ3eHl6e3x//aAAwDAQACEQMRAD8A9VSSSSUpJJJJSkkkJ+Tj -1kiy1jCJJDnAcCTykpKkuQ6p/jN6FgmxlNduXawwAzaGH+V6jn/R/wCt71zdn+N/qL3kVYFNYB4N -ji6PDVjWpKp9TSXnvTf8bFNjg3qOEa2n6VlLpj/rT/pf567DpX1i6L1hs9Py67X8mqdtg/rUWbbf -+gkp0kkkklKSSSSUpJJJJT//0PVUkkklKVLq3WMDpGI7KzrNjADtYNXvI/Mqr/Pd/q9W3vaxjnvM -NaCXE9gNSvGPrf8AWS3qmba5jjsJhoB0DAf0NDf6sevf+/lf8Hj0JJATfWT6/dV6oXU1uOLQeKKn -EQP+Hubtfe/+R7Mf/g7f5xcocp++Z11JMCJPgFBxOg7/AOuqDx8I/ikpkXkmSdU8mJIJA/O8EMAy -j+mSARB/17pKVXYWHXjsj7yIex0PadzXMO1zT5KHoNA3HT8ietoGhgjsfA+CSnvvqh/jJtqsrwOv -2b6NGNzXfTYexzJ+nU7/ALkf4P8Awv6P9KvTQQ4AgyDqCF85Pho3CTB7eHwXoH+LT65uZbX9X+o2 -bqbPb06551Y4 -` - 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 TestDecoderIssue7733(t *testing.T) { - s, err := StdEncoding.DecodeString("YWJjZA=====") - want := CorruptInputError(8) - if !reflect.DeepEqual(want, err) { - t.Errorf("Error = %v; want CorruptInputError(8)", err) - } - if string(s) != "abcd" { - t.Errorf("DecodeString = %q; want abcd", s) - } -} - -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) - } -} diff --git a/src/pkg/encoding/base64/example_test.go b/src/pkg/encoding/base64/example_test.go deleted file mode 100644 index d18b856a0..000000000 --- a/src/pkg/encoding/base64/example_test.go +++ /dev/null @@ -1,45 +0,0 @@ -// Copyright 2012 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. - -// Keep in sync with ../base32/example_test.go. - -package base64_test - -import ( - "encoding/base64" - "fmt" - "os" -) - -func ExampleEncoding_EncodeToString() { - data := []byte("any + old & data") - str := base64.StdEncoding.EncodeToString(data) - fmt.Println(str) - // Output: - // YW55ICsgb2xkICYgZGF0YQ== -} - -func ExampleEncoding_DecodeString() { - str := "c29tZSBkYXRhIHdpdGggACBhbmQg77u/" - data, err := base64.StdEncoding.DecodeString(str) - if err != nil { - fmt.Println("error:", err) - return - } - fmt.Printf("%q\n", data) - // Output: - // "some data with \x00 and \ufeff" -} - -func ExampleNewEncoder() { - input := []byte("foo\x00bar") - encoder := base64.NewEncoder(base64.StdEncoding, os.Stdout) - encoder.Write(input) - // Must close the encoder when finished to flush any partial blocks. - // If you comment out the following line, the last partial block "r" - // won't be encoded. - encoder.Close() - // Output: - // Zm9vAGJhcg== -} |