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// Copyright 2010 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 zip
 
import (
        "bytes"
        "encoding/binary"
        "io"
        "io/ioutil"
        "os"
        "testing"
        "time"
)
 
type ZipTest struct {
        Name    string
        Comment string
        File    []ZipTestFile
        Error   error // the error that Opening this file should return
}
 
type ZipTestFile struct {
        Name    string
        Content []byte // if blank, will attempt to compare against File
        File    string // name of file to compare to (relative to testdata/)
        Mtime   string // modified time in format "mm-dd-yy hh:mm:ss"
        Mode    os.FileMode
}
 
// Caution: The Mtime values found for the test files should correspond to
//          the values listed with unzip -l . However, the values
//          listed by unzip appear to be off by some hours. When creating
//          fresh test files and testing them, this issue is not present.
//          The test files were created in Sydney, so there might be a time
//          zone issue. The time zone information does have to be encoded
//          somewhere, because otherwise unzip -l could not provide a different
//          time from what the archive/zip package provides, but there appears
//          to be no documentation about this.
 
var tests = []ZipTest{
        {
                Name:    "test.zip",
                Comment: "This is a zipfile comment.",
                File: []ZipTestFile{
                        {
                                Name:    "test.txt",
                                Content: []byte("This is a test text file.\n"),
                                Mtime:   "09-05-10 12:12:02",
                                Mode:    0644,
                        },
                        {
                                Name:  "gophercolor16x16.png",
                                File:  "gophercolor16x16.png",
                                Mtime: "09-05-10 15:52:58",
                                Mode:  0644,
                        },
                },
        },
        {
                Name: "r.zip",
                File: []ZipTestFile{
                        {
                                Name:  "r/r.zip",
                                File:  "r.zip",
                                Mtime: "03-04-10 00:24:16",
                                Mode:  0666,
                        },
                },
        },
        {
                Name: "symlink.zip",
                File: []ZipTestFile{
                        {
                                Name:    "symlink",
                                Content: []byte("../target"),
                                Mode:    0777 | os.ModeSymlink,
                        },
                },
        },
        {
                Name: "readme.zip",
        },
        {
                Name:  "readme.notzip",
                Error: ErrFormat,
        },
        {
                Name: "dd.zip",
                File: []ZipTestFile{
                        {
                                Name:    "filename",
                                Content: []byte("This is a test textfile.\n"),
                                Mtime:   "02-02-11 13:06:20",
                                Mode:    0666,
                        },
                },
        },
        {
                // created in windows XP file manager.
                Name: "winxp.zip",
                File: crossPlatform,
        },
        {
                // created by Zip 3.0 under Linux
                Name: "unix.zip",
                File: crossPlatform,
        },
}
 
var crossPlatform = []ZipTestFile{
        {
                Name:    "hello",
                Content: []byte("world \r\n"),
                Mode:    0666,
        },
        {
                Name:    "dir/bar",
                Content: []byte("foo \r\n"),
                Mode:    0666,
        },
        {
                Name:    "dir/empty/",
                Content: []byte{},
                Mode:    os.ModeDir | 0777,
        },
        {
                Name:    "readonly",
                Content: []byte("important \r\n"),
                Mode:    0444,
        },
}
 
func TestReader(t *testing.T) {
        for _, zt := range tests {
                readTestZip(t, zt)
        }
}
 
func readTestZip(t *testing.T, zt ZipTest) {
        z, err := OpenReader("testdata/" + zt.Name)
        if err != zt.Error {
                t.Errorf("error=%v, want %v", err, zt.Error)
                return
        }
 
        // bail if file is not zip
        if err == ErrFormat {
                return
        }
        defer func() {
                if err := z.Close(); err != nil {
                        t.Errorf("error %q when closing zip file", err)
                }
        }()
 
        // bail here if no Files expected to be tested
        // (there may actually be files in the zip, but we don't care)
        if zt.File == nil {
                return
        }
 
        if z.Comment != zt.Comment {
                t.Errorf("%s: comment=%q, want %q", zt.Name, z.Comment, zt.Comment)
        }
        if len(z.File) != len(zt.File) {
                t.Errorf("%s: file count=%d, want %d", zt.Name, len(z.File), len(zt.File))
        }
 
        // test read of each file
        for i, ft := range zt.File {
                readTestFile(t, ft, z.File[i])
        }
 
        // test simultaneous reads
        n := 0
        done := make(chan bool)
        for i := 0; i < 5; i++ {
                for j, ft := range zt.File {
                        go func(j int, ft ZipTestFile) {
                                readTestFile(t, ft, z.File[j])
                                done <- true
                        }(j, ft)
                        n++
                }
        }
        for ; n > 0; n-- {
                <-done
        }
 
        // test invalid checksum
        if !z.File[0].hasDataDescriptor() { // skip test when crc32 in dd
                z.File[0].CRC32++ // invalidate
                r, err := z.File[0].Open()
                if err != nil {
                        t.Error(err)
                        return
                }
                var b bytes.Buffer
                _, err = io.Copy(&b, r)
                if err != ErrChecksum {
                        t.Errorf("%s: copy error=%v, want %v", z.File[0].Name, err, ErrChecksum)
                }
        }
}
 
func readTestFile(t *testing.T, ft ZipTestFile, f *File) {
        if f.Name != ft.Name {
                t.Errorf("name=%q, want %q", f.Name, ft.Name)
        }
 
        if ft.Mtime != "" {
                mtime, err := time.Parse("01-02-06 15:04:05", ft.Mtime)
                if err != nil {
                        t.Error(err)
                        return
                }
                if ft := f.ModTime(); !ft.Equal(mtime) {
                        t.Errorf("%s: mtime=%s, want %s", f.Name, ft, mtime)
                }
        }
 
        testFileMode(t, f, ft.Mode)
 
        size0 := f.UncompressedSize
 
        var b bytes.Buffer
        r, err := f.Open()
        if err != nil {
                t.Error(err)
                return
        }
 
        if size1 := f.UncompressedSize; size0 != size1 {
                t.Errorf("file %q changed f.UncompressedSize from %d to %d", f.Name, size0, size1)
        }
 
        _, err = io.Copy(&b, r)
        if err != nil {
                t.Error(err)
                return
        }
        r.Close()
 
        var c []byte
        if ft.Content != nil {
                c = ft.Content
        } else if c, err = ioutil.ReadFile("testdata/" + ft.File); err != nil {
                t.Error(err)
                return
        }
 
        if b.Len() != len(c) {
                t.Errorf("%s: len=%d, want %d", f.Name, b.Len(), len(c))
                return
        }
 
        for i, b := range b.Bytes() {
                if b != c[i] {
                        t.Errorf("%s: content[%d]=%q want %q", f.Name, i, b, c[i])
                        return
                }
        }
}
 
func testFileMode(t *testing.T, f *File, want os.FileMode) {
        mode := f.Mode()
        if want == 0 {
                t.Errorf("%s mode: got %v, want none", f.Name, mode)
        } else if mode != want {
                t.Errorf("%s mode: want %v, got %v", f.Name, want, mode)
        }
}
 
func TestInvalidFiles(t *testing.T) {
        const size = 1024 * 70 // 70kb
        b := make([]byte, size)
 
        // zeroes
        _, err := NewReader(sliceReaderAt(b), size)
        if err != ErrFormat {
                t.Errorf("zeroes: error=%v, want %v", err, ErrFormat)
        }
 
        // repeated directoryEndSignatures
        sig := make([]byte, 4)
        binary.LittleEndian.PutUint32(sig, directoryEndSignature)
        for i := 0; i < size-4; i += 4 {
                copy(b[i:i+4], sig)
        }
        _, err = NewReader(sliceReaderAt(b), size)
        if err != ErrFormat {
                t.Errorf("sigs: error=%v, want %v", err, ErrFormat)
        }
}
 
type sliceReaderAt []byte
 
func (r sliceReaderAt) ReadAt(b []byte, off int64) (int, error) {
        copy(b, r[int(off):int(off)+len(b)])
        return len(b), nil
}

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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libgo/] [go/] [archive/] [zip/] [reader_test.go] - Blame information for rev 774

Line No.	Rev	Author	Line
1	747	jeremybenn	`// Copyright 2010 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 zip`
6
7			`import (`
8			`"bytes"`
9			`"encoding/binary"`
10			`"io"`
11			`"io/ioutil"`
12			`"os"`
13			`"testing"`
14			`"time"`
15			`)`
16
17			`type ZipTest struct {`
18			`Name string`
19			`Comment string`
20			`File []ZipTestFile`
21			`Error error // the error that Opening this file should return`
22			`}`
23
24			`type ZipTestFile struct {`
25			`Name string`
26			`Content []byte // if blank, will attempt to compare against File`
27			`File string // name of file to compare to (relative to testdata/)`
28			`Mtime string // modified time in format "mm-dd-yy hh:mm:ss"`
29			`Mode os.FileMode`
30			`}`
31
32			`// Caution: The Mtime values found for the test files should correspond to`
33			`// the values listed with unzip -l . However, the values`
34			`// listed by unzip appear to be off by some hours. When creating`
35			`// fresh test files and testing them, this issue is not present.`
36			`// The test files were created in Sydney, so there might be a time`
37			`// zone issue. The time zone information does have to be encoded`
38			`// somewhere, because otherwise unzip -l could not provide a different`
39			`// time from what the archive/zip package provides, but there appears`
40			`// to be no documentation about this.`
41
42			`var tests = []ZipTest{`
43			`{`
44			`Name: "test.zip",`
45			`Comment: "This is a zipfile comment.",`
46			`File: []ZipTestFile{`
47			`{`
48			`Name: "test.txt",`
49			`Content: []byte("This is a test text file.\n"),`
50			`Mtime: "09-05-10 12:12:02",`
51			`Mode: 0644,`
52			`},`
53			`{`
54			`Name: "gophercolor16x16.png",`
55			`File: "gophercolor16x16.png",`
56			`Mtime: "09-05-10 15:52:58",`
57			`Mode: 0644,`
58			`},`
59			`},`
60			`},`
61			`{`
62			`Name: "r.zip",`
63			`File: []ZipTestFile{`
64			`{`
65			`Name: "r/r.zip",`
66			`File: "r.zip",`
67			`Mtime: "03-04-10 00:24:16",`
68			`Mode: 0666,`
69			`},`
70			`},`
71			`},`
72			`{`
73			`Name: "symlink.zip",`
74			`File: []ZipTestFile{`
75			`{`
76			`Name: "symlink",`
77			`Content: []byte("../target"),`
78			`Mode: 0777 \| os.ModeSymlink,`
79			`},`
80			`},`
81			`},`
82			`{`
83			`Name: "readme.zip",`
84			`},`
85			`{`
86			`Name: "readme.notzip",`
87			`Error: ErrFormat,`
88			`},`
89			`{`
90			`Name: "dd.zip",`
91			`File: []ZipTestFile{`
92			`{`
93			`Name: "filename",`
94			`Content: []byte("This is a test textfile.\n"),`
95			`Mtime: "02-02-11 13:06:20",`
96			`Mode: 0666,`
97			`},`
98			`},`
99			`},`
100			`{`
101			`// created in windows XP file manager.`
102			`Name: "winxp.zip",`
103			`File: crossPlatform,`
104			`},`
105			`{`
106			`// created by Zip 3.0 under Linux`
107			`Name: "unix.zip",`
108			`File: crossPlatform,`
109			`},`
110			`}`
111
112			`var crossPlatform = []ZipTestFile{`
113			`{`
114			`Name: "hello",`
115			`Content: []byte("world \r\n"),`
116			`Mode: 0666,`
117			`},`
118			`{`
119			`Name: "dir/bar",`
120			`Content: []byte("foo \r\n"),`
121			`Mode: 0666,`
122			`},`
123			`{`
124			`Name: "dir/empty/",`
125			`Content: []byte{},`
126			`Mode: os.ModeDir \| 0777,`
127			`},`
128			`{`
129			`Name: "readonly",`
130			`Content: []byte("important \r\n"),`
131			`Mode: 0444,`
132			`},`
133			`}`
134
135			`func TestReader(t *testing.T) {`
136			`for _, zt := range tests {`
137			`readTestZip(t, zt)`
138			`}`
139			`}`
140
141			`func readTestZip(t *testing.T, zt ZipTest) {`
142			`z, err := OpenReader("testdata/" + zt.Name)`
143			`if err != zt.Error {`
144			`t.Errorf("error=%v, want %v", err, zt.Error)`
145			`return`
146			`}`
147
148			`// bail if file is not zip`
149			`if err == ErrFormat {`
150			`return`
151			`}`
152			`defer func() {`
153			`if err := z.Close(); err != nil {`
154			`t.Errorf("error %q when closing zip file", err)`
155			`}`
156			`}()`
157
158			`// bail here if no Files expected to be tested`
159			`// (there may actually be files in the zip, but we don't care)`
160			`if zt.File == nil {`
161			`return`
162			`}`
163
164			`if z.Comment != zt.Comment {`
165			`t.Errorf("%s: comment=%q, want %q", zt.Name, z.Comment, zt.Comment)`
166			`}`
167			`if len(z.File) != len(zt.File) {`
168			`t.Errorf("%s: file count=%d, want %d", zt.Name, len(z.File), len(zt.File))`
169			`}`
170
171			`// test read of each file`
172			`for i, ft := range zt.File {`
173			`readTestFile(t, ft, z.File[i])`
174			`}`
175
176			`// test simultaneous reads`
177			`n := 0`
178			`done := make(chan bool)`
179			`for i := 0; i < 5; i++ {`
180			`for j, ft := range zt.File {`
181			`go func(j int, ft ZipTestFile) {`
182			`readTestFile(t, ft, z.File[j])`
183			`done <- true`
184			`}(j, ft)`
185			`n++`
186			`}`
187			`}`
188			`for ; n > 0; n-- {`
189			`<-done`
190			`}`
191
192			`// test invalid checksum`
193			`if !z.File[0].hasDataDescriptor() { // skip test when crc32 in dd`
194			`z.File[0].CRC32++ // invalidate`
195			`r, err := z.File[0].Open()`
196			`if err != nil {`
197			`t.Error(err)`
198			`return`
199			`}`
200			`var b bytes.Buffer`
201			`_, err = io.Copy(&b, r)`
202			`if err != ErrChecksum {`
203			`t.Errorf("%s: copy error=%v, want %v", z.File[0].Name, err, ErrChecksum)`
204			`}`
205			`}`
206			`}`
207
208			`func readTestFile(t testing.T, ft ZipTestFile, f File) {`
209			`if f.Name != ft.Name {`
210			`t.Errorf("name=%q, want %q", f.Name, ft.Name)`
211			`}`
212
213			`if ft.Mtime != "" {`
214			`mtime, err := time.Parse("01-02-06 15:04:05", ft.Mtime)`
215			`if err != nil {`
216			`t.Error(err)`
217			`return`
218			`}`
219			`if ft := f.ModTime(); !ft.Equal(mtime) {`
220			`t.Errorf("%s: mtime=%s, want %s", f.Name, ft, mtime)`
221			`}`
222			`}`
223
224			`testFileMode(t, f, ft.Mode)`
225
226			`size0 := f.UncompressedSize`
227
228			`var b bytes.Buffer`
229			`r, err := f.Open()`
230			`if err != nil {`
231			`t.Error(err)`
232			`return`
233			`}`
234
235			`if size1 := f.UncompressedSize; size0 != size1 {`
236			`t.Errorf("file %q changed f.UncompressedSize from %d to %d", f.Name, size0, size1)`
237			`}`
238
239			`_, err = io.Copy(&b, r)`
240			`if err != nil {`
241			`t.Error(err)`
242			`return`
243			`}`
244			`r.Close()`
245
246			`var c []byte`
247			`if ft.Content != nil {`
248			`c = ft.Content`
249			`} else if c, err = ioutil.ReadFile("testdata/" + ft.File); err != nil {`
250			`t.Error(err)`
251			`return`
252			`}`
253
254			`if b.Len() != len(c) {`
255			`t.Errorf("%s: len=%d, want %d", f.Name, b.Len(), len(c))`
256			`return`
257			`}`
258
259			`for i, b := range b.Bytes() {`
260			`if b != c[i] {`
261			`t.Errorf("%s: content[%d]=%q want %q", f.Name, i, b, c[i])`
262			`return`
263			`}`
264			`}`
265			`}`
266
267			`func testFileMode(t testing.T, f File, want os.FileMode) {`
268			`mode := f.Mode()`
269			`if want == 0 {`
270			`t.Errorf("%s mode: got %v, want none", f.Name, mode)`
271			`} else if mode != want {`
272			`t.Errorf("%s mode: want %v, got %v", f.Name, want, mode)`
273			`}`
274			`}`
275
276			`func TestInvalidFiles(t *testing.T) {`
277			`const size = 1024 * 70 // 70kb`
278			`b := make([]byte, size)`
279
280			`// zeroes`
281			`_, err := NewReader(sliceReaderAt(b), size)`
282			`if err != ErrFormat {`
283			`t.Errorf("zeroes: error=%v, want %v", err, ErrFormat)`
284			`}`
285
286			`// repeated directoryEndSignatures`
287			`sig := make([]byte, 4)`
288			`binary.LittleEndian.PutUint32(sig, directoryEndSignature)`
289			`for i := 0; i < size-4; i += 4 {`
290			`copy(b[i:i+4], sig)`
291			`}`
292			`_, err = NewReader(sliceReaderAt(b), size)`
293			`if err != ErrFormat {`
294			`t.Errorf("sigs: error=%v, want %v", err, ErrFormat)`
295			`}`
296			`}`
297
298			`type sliceReaderAt []byte`
299
300			`func (r sliceReaderAt) ReadAt(b []byte, off int64) (int, error) {`
301			`copy(b, r[int(off):int(off)+len(b)])`
302			`return len(b), nil`
303			`}`