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// 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 zlib
 
import (
        "bytes"
        "io"
        "testing"
)
 
type zlibTest struct {
        desc       string
        raw        string
        compressed []byte
        dict       []byte
        err        error
}
 
// Compare-to-golden test data was generated by the ZLIB example program at
// http://www.zlib.net/zpipe.c
 
var zlibTests = []zlibTest{
        {
                "empty",
                "",
                []byte{0x78, 0x9c, 0x03, 0x00, 0x00, 0x00, 0x00, 0x01},
                nil,
                nil,
        },
        {
                "goodbye",
                "goodbye, world",
                []byte{
                        0x78, 0x9c, 0x4b, 0xcf, 0xcf, 0x4f, 0x49, 0xaa,
                        0x4c, 0xd5, 0x51, 0x28, 0xcf, 0x2f, 0xca, 0x49,
                        0x01, 0x00, 0x28, 0xa5, 0x05, 0x5e,
                },
                nil,
                nil,
        },
        {
                "bad header",
                "",
                []byte{0x78, 0x9f, 0x03, 0x00, 0x00, 0x00, 0x00, 0x01},
                nil,
                ErrHeader,
        },
        {
                "bad checksum",
                "",
                []byte{0x78, 0x9c, 0x03, 0x00, 0x00, 0x00, 0x00, 0xff},
                nil,
                ErrChecksum,
        },
        {
                "not enough data",
                "",
                []byte{0x78, 0x9c, 0x03, 0x00, 0x00, 0x00},
                nil,
                io.ErrUnexpectedEOF,
        },
        {
                "excess data is silently ignored",
                "",
                []byte{
                        0x78, 0x9c, 0x03, 0x00, 0x00, 0x00, 0x00, 0x01,
                        0x78, 0x9c, 0xff,
                },
                nil,
                nil,
        },
        {
                "dictionary",
                "Hello, World!\n",
                []byte{
                        0x78, 0xbb, 0x1c, 0x32, 0x04, 0x27, 0xf3, 0x00,
                        0xb1, 0x75, 0x20, 0x1c, 0x45, 0x2e, 0x00, 0x24,
                        0x12, 0x04, 0x74,
                },
                []byte{
                        0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x20, 0x57, 0x6f, 0x72, 0x6c, 0x64, 0x0a,
                },
                nil,
        },
        {
                "wrong dictionary",
                "",
                []byte{
                        0x78, 0xbb, 0x1c, 0x32, 0x04, 0x27, 0xf3, 0x00,
                        0xb1, 0x75, 0x20, 0x1c, 0x45, 0x2e, 0x00, 0x24,
                        0x12, 0x04, 0x74,
                },
                []byte{
                        0x48, 0x65, 0x6c, 0x6c,
                },
                ErrDictionary,
        },
}
 
func TestDecompressor(t *testing.T) {
        b := new(bytes.Buffer)
        for _, tt := range zlibTests {
                in := bytes.NewBuffer(tt.compressed)
                zlib, err := NewReaderDict(in, tt.dict)
                if err != nil {
                        if err != tt.err {
                                t.Errorf("%s: NewReader: %s", tt.desc, err)
                        }
                        continue
                }
                defer zlib.Close()
                b.Reset()
                n, err := io.Copy(b, zlib)
                if err != nil {
                        if err != tt.err {
                                t.Errorf("%s: io.Copy: %v want %v", tt.desc, err, tt.err)
                        }
                        continue
                }
                s := b.String()
                if s != tt.raw {
                        t.Errorf("%s: got %d-byte %q want %d-byte %q", tt.desc, n, s, len(tt.raw), tt.raw)
                }
        }
}

Line No.	Rev	Author	Line
1	747	jeremybenn	`// Copyright 2009 The Go Authors. All rights reserved.`
2			`// Use of this source code is governed by a BSD-style`
3			`// license that can be found in the LICENSE file.`
4
5			`package zlib`
6
7			`import (`
8			`"bytes"`
9			`"io"`
10			`"testing"`
11			`)`
12
13			`type zlibTest struct {`
14			`desc string`
15			`raw string`
16			`compressed []byte`
17			`dict []byte`
18			`err error`
19			`}`
20
21			`// Compare-to-golden test data was generated by the ZLIB example program at`
22			`// http://www.zlib.net/zpipe.c`
23
24			`var zlibTests = []zlibTest{`
25			`{`
26			`"empty",`
27			`"",`
28			`[]byte{0x78, 0x9c, 0x03, 0x00, 0x00, 0x00, 0x00, 0x01},`
29			`nil,`
30			`nil,`
31			`},`
32			`{`
33			`"goodbye",`
34			`"goodbye, world",`
35			`[]byte{`
36			`0x78, 0x9c, 0x4b, 0xcf, 0xcf, 0x4f, 0x49, 0xaa,`
37			`0x4c, 0xd5, 0x51, 0x28, 0xcf, 0x2f, 0xca, 0x49,`
38			`0x01, 0x00, 0x28, 0xa5, 0x05, 0x5e,`
39			`},`
40			`nil,`
41			`nil,`
42			`},`
43			`{`
44			`"bad header",`
45			`"",`
46			`[]byte{0x78, 0x9f, 0x03, 0x00, 0x00, 0x00, 0x00, 0x01},`
47			`nil,`
48			`ErrHeader,`
49			`},`
50			`{`
51			`"bad checksum",`
52			`"",`
53			`[]byte{0x78, 0x9c, 0x03, 0x00, 0x00, 0x00, 0x00, 0xff},`
54			`nil,`
55			`ErrChecksum,`
56			`},`
57			`{`
58			`"not enough data",`
59			`"",`
60			`[]byte{0x78, 0x9c, 0x03, 0x00, 0x00, 0x00},`
61			`nil,`
62			`io.ErrUnexpectedEOF,`
63			`},`
64			`{`
65			`"excess data is silently ignored",`
66			`"",`
67			`[]byte{`
68			`0x78, 0x9c, 0x03, 0x00, 0x00, 0x00, 0x00, 0x01,`
69			`0x78, 0x9c, 0xff,`
70			`},`
71			`nil,`
72			`nil,`
73			`},`
74			`{`
75			`"dictionary",`
76			`"Hello, World!\n",`
77			`[]byte{`
78			`0x78, 0xbb, 0x1c, 0x32, 0x04, 0x27, 0xf3, 0x00,`
79			`0xb1, 0x75, 0x20, 0x1c, 0x45, 0x2e, 0x00, 0x24,`
80			`0x12, 0x04, 0x74,`
81			`},`
82			`[]byte{`
83			`0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x20, 0x57, 0x6f, 0x72, 0x6c, 0x64, 0x0a,`
84			`},`
85			`nil,`
86			`},`
87			`{`
88			`"wrong dictionary",`
89			`"",`
90			`[]byte{`
91			`0x78, 0xbb, 0x1c, 0x32, 0x04, 0x27, 0xf3, 0x00,`
92			`0xb1, 0x75, 0x20, 0x1c, 0x45, 0x2e, 0x00, 0x24,`
93			`0x12, 0x04, 0x74,`
94			`},`
95			`[]byte{`
96			`0x48, 0x65, 0x6c, 0x6c,`
97			`},`
98			`ErrDictionary,`
99			`},`
100			`}`
101
102			`func TestDecompressor(t *testing.T) {`
103			`b := new(bytes.Buffer)`
104			`for _, tt := range zlibTests {`
105			`in := bytes.NewBuffer(tt.compressed)`
106			`zlib, err := NewReaderDict(in, tt.dict)`
107			`if err != nil {`
108			`if err != tt.err {`
109			`t.Errorf("%s: NewReader: %s", tt.desc, err)`
110			`}`
111			`continue`
112			`}`
113			`defer zlib.Close()`
114			`b.Reset()`
115			`n, err := io.Copy(b, zlib)`
116			`if err != nil {`
117			`if err != tt.err {`
118			`t.Errorf("%s: io.Copy: %v want %v", tt.desc, err, tt.err)`
119			`}`
120			`continue`
121			`}`
122			`s := b.String()`
123			`if s != tt.raw {`
124			`t.Errorf("%s: got %d-byte %q want %d-byte %q", tt.desc, n, s, len(tt.raw), tt.raw)`
125			`}`
126			`}`
127			`}`

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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libgo/] [go/] [compress/] [zlib/] [reader_test.go] - Blame information for rev 747