From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- libgo/go/encoding/git85/git_test.go | 194 ++++++++++++++++++++++++++++++++++++ 1 file changed, 194 insertions(+) create mode 100644 libgo/go/encoding/git85/git_test.go (limited to 'libgo/go/encoding/git85/git_test.go') diff --git a/libgo/go/encoding/git85/git_test.go b/libgo/go/encoding/git85/git_test.go new file mode 100644 index 000000000..c76385c35 --- /dev/null +++ b/libgo/go/encoding/git85/git_test.go @@ -0,0 +1,194 @@ +// 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 git85 + +import ( + "bytes" + "io/ioutil" + "os" + "testing" +) + +type testpair struct { + decoded, encoded string +} + +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 TestGitTable(t *testing.T) { + var saw [256]bool + for i, c := range encode { + if decode[c] != uint8(i+1) { + t.Errorf("decode['%c'] = %d, want %d", c, decode[c], i+1) + } + saw[c] = true + } + for i, b := range saw { + if !b && decode[i] != 0 { + t.Errorf("decode[%d] = %d, want 0", i, decode[i]) + } + } +} + +var gitPairs = []testpair{ + // Wikipedia example, adapted. + { + "Man is distinguished, not only by his reason, but by this singular passion from " + + "other animals, which is a lust of the mind, that by a perseverance of delight in " + + "the continued and indefatigable generation of knowledge, exceeds the short " + + "vehemence of any carnal pleasure.", + + "zO<`^zX>%ZCX>)XGZfA9Ab7*B`EFf-gbRchTYDO_b1WctXlY|;AZc?T\n" + + "zVIXXEb95kYW*~HEWgu;7Ze%PVbZB98AYyqSVIXj2a&u*NWpZI|V`U(3W*}r`Y-wj`\n" + + "zbRcPNAarPDAY*TCbZKsNWn>^>Ze$>7Ze(RV>IZ)PBC\n" + + "zZf|#NWn^b%EFfigV`XJzb0BnRWgv5CZ*p`Xc4cT~ZDnp_Wgu^6AYpEKAY);2ZeeU7\n" + + "IaBO8^b9HiME&u=k\n", + }, +} + +var gitBigtest = gitPairs[len(gitPairs)-1] + +func TestEncode(t *testing.T) { + for _, p := range gitPairs { + buf := make([]byte, EncodedLen(len(p.decoded))) + n := Encode(buf, []byte(p.decoded)) + if n != len(buf) { + t.Errorf("EncodedLen does not agree with Encode") + } + buf = buf[0:n] + testEqual(t, "Encode(%q) = %q, want %q", p.decoded, string(buf), p.encoded) + } +} + +func TestEncoder(t *testing.T) { + for _, p := range gitPairs { + bb := &bytes.Buffer{} + encoder := NewEncoder(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(gitBigtest.decoded) + for bs := 1; bs <= 12; bs++ { + bb := &bytes.Buffer{} + encoder := NewEncoder(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, os.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, os.Error(nil)) + testEqual(t, "Encoding/%d of %q = %q, want %q", bs, gitBigtest.decoded, bb.String(), gitBigtest.encoded) + } +} + +func TestDecode(t *testing.T) { + for _, p := range gitPairs { + dbuf := make([]byte, 4*len(p.encoded)) + ndst, err := Decode(dbuf, []byte(p.encoded)) + testEqual(t, "Decode(%q) = error %v, want %v", p.encoded, err, os.Error(nil)) + testEqual(t, "Decode(%q) = ndst %v, want %v", p.encoded, ndst, len(p.decoded)) + testEqual(t, "Decode(%q) = %q, want %q", p.encoded, string(dbuf[0:ndst]), p.decoded) + } +} + +func TestDecoder(t *testing.T) { + for _, p := range gitPairs { + decoder := NewDecoder(bytes.NewBufferString(p.encoded)) + dbuf, err := ioutil.ReadAll(decoder) + if err != nil { + t.Fatal("Read failed", err) + } + testEqual(t, "Read from %q = length %v, want %v", p.encoded, len(dbuf), len(p.decoded)) + testEqual(t, "Decoding of %q = %q, want %q", p.encoded, string(dbuf), p.decoded) + if err != nil { + testEqual(t, "Read from %q = %v, want %v", p.encoded, err, os.EOF) + } + } +} + +func TestDecoderBuffering(t *testing.T) { + for bs := 1; bs <= 12; bs++ { + decoder := NewDecoder(bytes.NewBufferString(gitBigtest.encoded)) + buf := make([]byte, len(gitBigtest.decoded)+12) + var total int + for total = 0; total < len(gitBigtest.decoded); { + n, err := decoder.Read(buf[total : total+bs]) + testEqual(t, "Read from %q at pos %d = %d, %v, want _, %v", gitBigtest.encoded, total, n, err, os.Error(nil)) + total += n + } + testEqual(t, "Decoding/%d of %q = %q, want %q", bs, gitBigtest.encoded, string(buf[0:total]), gitBigtest.decoded) + } +} + +func TestDecodeCorrupt(t *testing.T) { + type corrupt struct { + e string + p int + } + examples := []corrupt{ + {"v", 0}, + {"!z!!!!!!!!!", 0}, + } + + for _, e := range examples { + dbuf := make([]byte, 2*len(e.e)) + _, err := Decode(dbuf, []byte(e.e)) + switch err := err.(type) { + case CorruptInputError: + testEqual(t, "Corruption in %q at offset %v, want %v", e.e, int(err), e.p) + default: + t.Error("Decoder failed to detect corruption in", e) + } + } +} + +func TestGitBig(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(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(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) + } +} -- cgit v1.2.3