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Diffstat (limited to 'src/pkg/archive/tar/writer_test.go')
-rw-r--r--src/pkg/archive/tar/writer_test.go491
1 files changed, 0 insertions, 491 deletions
diff --git a/src/pkg/archive/tar/writer_test.go b/src/pkg/archive/tar/writer_test.go
deleted file mode 100644
index 5e42e322f..000000000
--- a/src/pkg/archive/tar/writer_test.go
+++ /dev/null
@@ -1,491 +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 tar
-
-import (
- "bytes"
- "fmt"
- "io"
- "io/ioutil"
- "os"
- "reflect"
- "strings"
- "testing"
- "testing/iotest"
- "time"
-)
-
-type writerTestEntry struct {
- header *Header
- contents string
-}
-
-type writerTest struct {
- file string // filename of expected output
- entries []*writerTestEntry
-}
-
-var writerTests = []*writerTest{
- // The writer test file was produced with this command:
- // tar (GNU tar) 1.26
- // ln -s small.txt link.txt
- // tar -b 1 --format=ustar -c -f writer.tar small.txt small2.txt link.txt
- {
- file: "testdata/writer.tar",
- entries: []*writerTestEntry{
- {
- header: &Header{
- Name: "small.txt",
- Mode: 0640,
- Uid: 73025,
- Gid: 5000,
- Size: 5,
- ModTime: time.Unix(1246508266, 0),
- Typeflag: '0',
- Uname: "dsymonds",
- Gname: "eng",
- },
- contents: "Kilts",
- },
- {
- header: &Header{
- Name: "small2.txt",
- Mode: 0640,
- Uid: 73025,
- Gid: 5000,
- Size: 11,
- ModTime: time.Unix(1245217492, 0),
- Typeflag: '0',
- Uname: "dsymonds",
- Gname: "eng",
- },
- contents: "Google.com\n",
- },
- {
- header: &Header{
- Name: "link.txt",
- Mode: 0777,
- Uid: 1000,
- Gid: 1000,
- Size: 0,
- ModTime: time.Unix(1314603082, 0),
- Typeflag: '2',
- Linkname: "small.txt",
- Uname: "strings",
- Gname: "strings",
- },
- // no contents
- },
- },
- },
- // The truncated test file was produced using these commands:
- // dd if=/dev/zero bs=1048576 count=16384 > /tmp/16gig.txt
- // tar -b 1 -c -f- /tmp/16gig.txt | dd bs=512 count=8 > writer-big.tar
- {
- file: "testdata/writer-big.tar",
- entries: []*writerTestEntry{
- {
- header: &Header{
- Name: "tmp/16gig.txt",
- Mode: 0640,
- Uid: 73025,
- Gid: 5000,
- Size: 16 << 30,
- ModTime: time.Unix(1254699560, 0),
- Typeflag: '0',
- Uname: "dsymonds",
- Gname: "eng",
- },
- // fake contents
- contents: strings.Repeat("\x00", 4<<10),
- },
- },
- },
- // The truncated test file was produced using these commands:
- // dd if=/dev/zero bs=1048576 count=16384 > (longname/)*15 /16gig.txt
- // tar -b 1 -c -f- (longname/)*15 /16gig.txt | dd bs=512 count=8 > writer-big-long.tar
- {
- file: "testdata/writer-big-long.tar",
- entries: []*writerTestEntry{
- {
- header: &Header{
- Name: strings.Repeat("longname/", 15) + "16gig.txt",
- Mode: 0644,
- Uid: 1000,
- Gid: 1000,
- Size: 16 << 30,
- ModTime: time.Unix(1399583047, 0),
- Typeflag: '0',
- Uname: "guillaume",
- Gname: "guillaume",
- },
- // fake contents
- contents: strings.Repeat("\x00", 4<<10),
- },
- },
- },
- // This file was produced using gnu tar 1.17
- // gnutar -b 4 --format=ustar (longname/)*15 + file.txt
- {
- file: "testdata/ustar.tar",
- entries: []*writerTestEntry{
- {
- header: &Header{
- Name: strings.Repeat("longname/", 15) + "file.txt",
- Mode: 0644,
- Uid: 0765,
- Gid: 024,
- Size: 06,
- ModTime: time.Unix(1360135598, 0),
- Typeflag: '0',
- Uname: "shane",
- Gname: "staff",
- },
- contents: "hello\n",
- },
- },
- },
-}
-
-// Render byte array in a two-character hexadecimal string, spaced for easy visual inspection.
-func bytestr(offset int, b []byte) string {
- const rowLen = 32
- s := fmt.Sprintf("%04x ", offset)
- for _, ch := range b {
- switch {
- case '0' <= ch && ch <= '9', 'A' <= ch && ch <= 'Z', 'a' <= ch && ch <= 'z':
- s += fmt.Sprintf(" %c", ch)
- default:
- s += fmt.Sprintf(" %02x", ch)
- }
- }
- return s
-}
-
-// Render a pseudo-diff between two blocks of bytes.
-func bytediff(a []byte, b []byte) string {
- const rowLen = 32
- s := fmt.Sprintf("(%d bytes vs. %d bytes)\n", len(a), len(b))
- for offset := 0; len(a)+len(b) > 0; offset += rowLen {
- na, nb := rowLen, rowLen
- if na > len(a) {
- na = len(a)
- }
- if nb > len(b) {
- nb = len(b)
- }
- sa := bytestr(offset, a[0:na])
- sb := bytestr(offset, b[0:nb])
- if sa != sb {
- s += fmt.Sprintf("-%v\n+%v\n", sa, sb)
- }
- a = a[na:]
- b = b[nb:]
- }
- return s
-}
-
-func TestWriter(t *testing.T) {
-testLoop:
- for i, test := range writerTests {
- expected, err := ioutil.ReadFile(test.file)
- if err != nil {
- t.Errorf("test %d: Unexpected error: %v", i, err)
- continue
- }
-
- buf := new(bytes.Buffer)
- tw := NewWriter(iotest.TruncateWriter(buf, 4<<10)) // only catch the first 4 KB
- big := false
- for j, entry := range test.entries {
- big = big || entry.header.Size > 1<<10
- if err := tw.WriteHeader(entry.header); err != nil {
- t.Errorf("test %d, entry %d: Failed writing header: %v", i, j, err)
- continue testLoop
- }
- if _, err := io.WriteString(tw, entry.contents); err != nil {
- t.Errorf("test %d, entry %d: Failed writing contents: %v", i, j, err)
- continue testLoop
- }
- }
- // Only interested in Close failures for the small tests.
- if err := tw.Close(); err != nil && !big {
- t.Errorf("test %d: Failed closing archive: %v", i, err)
- continue testLoop
- }
-
- actual := buf.Bytes()
- if !bytes.Equal(expected, actual) {
- t.Errorf("test %d: Incorrect result: (-=expected, +=actual)\n%v",
- i, bytediff(expected, actual))
- }
- if testing.Short() { // The second test is expensive.
- break
- }
- }
-}
-
-func TestPax(t *testing.T) {
- // Create an archive with a large name
- fileinfo, err := os.Stat("testdata/small.txt")
- if err != nil {
- t.Fatal(err)
- }
- hdr, err := FileInfoHeader(fileinfo, "")
- if err != nil {
- t.Fatalf("os.Stat: %v", err)
- }
- // Force a PAX long name to be written
- longName := strings.Repeat("ab", 100)
- contents := strings.Repeat(" ", int(hdr.Size))
- hdr.Name = longName
- var buf bytes.Buffer
- writer := NewWriter(&buf)
- if err := writer.WriteHeader(hdr); err != nil {
- t.Fatal(err)
- }
- if _, err = writer.Write([]byte(contents)); err != nil {
- t.Fatal(err)
- }
- if err := writer.Close(); err != nil {
- t.Fatal(err)
- }
- // Simple test to make sure PAX extensions are in effect
- if !bytes.Contains(buf.Bytes(), []byte("PaxHeaders.")) {
- t.Fatal("Expected at least one PAX header to be written.")
- }
- // Test that we can get a long name back out of the archive.
- reader := NewReader(&buf)
- hdr, err = reader.Next()
- if err != nil {
- t.Fatal(err)
- }
- if hdr.Name != longName {
- t.Fatal("Couldn't recover long file name")
- }
-}
-
-func TestPaxSymlink(t *testing.T) {
- // Create an archive with a large linkname
- fileinfo, err := os.Stat("testdata/small.txt")
- if err != nil {
- t.Fatal(err)
- }
- hdr, err := FileInfoHeader(fileinfo, "")
- hdr.Typeflag = TypeSymlink
- if err != nil {
- t.Fatalf("os.Stat:1 %v", err)
- }
- // Force a PAX long linkname to be written
- longLinkname := strings.Repeat("1234567890/1234567890", 10)
- hdr.Linkname = longLinkname
-
- hdr.Size = 0
- var buf bytes.Buffer
- writer := NewWriter(&buf)
- if err := writer.WriteHeader(hdr); err != nil {
- t.Fatal(err)
- }
- if err := writer.Close(); err != nil {
- t.Fatal(err)
- }
- // Simple test to make sure PAX extensions are in effect
- if !bytes.Contains(buf.Bytes(), []byte("PaxHeaders.")) {
- t.Fatal("Expected at least one PAX header to be written.")
- }
- // Test that we can get a long name back out of the archive.
- reader := NewReader(&buf)
- hdr, err = reader.Next()
- if err != nil {
- t.Fatal(err)
- }
- if hdr.Linkname != longLinkname {
- t.Fatal("Couldn't recover long link name")
- }
-}
-
-func TestPaxNonAscii(t *testing.T) {
- // Create an archive with non ascii. These should trigger a pax header
- // because pax headers have a defined utf-8 encoding.
- fileinfo, err := os.Stat("testdata/small.txt")
- if err != nil {
- t.Fatal(err)
- }
-
- hdr, err := FileInfoHeader(fileinfo, "")
- if err != nil {
- t.Fatalf("os.Stat:1 %v", err)
- }
-
- // some sample data
- chineseFilename := "文件名"
- chineseGroupname := "組"
- chineseUsername := "用戶名"
-
- hdr.Name = chineseFilename
- hdr.Gname = chineseGroupname
- hdr.Uname = chineseUsername
-
- contents := strings.Repeat(" ", int(hdr.Size))
-
- var buf bytes.Buffer
- writer := NewWriter(&buf)
- if err := writer.WriteHeader(hdr); err != nil {
- t.Fatal(err)
- }
- if _, err = writer.Write([]byte(contents)); err != nil {
- t.Fatal(err)
- }
- if err := writer.Close(); err != nil {
- t.Fatal(err)
- }
- // Simple test to make sure PAX extensions are in effect
- if !bytes.Contains(buf.Bytes(), []byte("PaxHeaders.")) {
- t.Fatal("Expected at least one PAX header to be written.")
- }
- // Test that we can get a long name back out of the archive.
- reader := NewReader(&buf)
- hdr, err = reader.Next()
- if err != nil {
- t.Fatal(err)
- }
- if hdr.Name != chineseFilename {
- t.Fatal("Couldn't recover unicode name")
- }
- if hdr.Gname != chineseGroupname {
- t.Fatal("Couldn't recover unicode group")
- }
- if hdr.Uname != chineseUsername {
- t.Fatal("Couldn't recover unicode user")
- }
-}
-
-func TestPaxXattrs(t *testing.T) {
- xattrs := map[string]string{
- "user.key": "value",
- }
-
- // Create an archive with an xattr
- fileinfo, err := os.Stat("testdata/small.txt")
- if err != nil {
- t.Fatal(err)
- }
- hdr, err := FileInfoHeader(fileinfo, "")
- if err != nil {
- t.Fatalf("os.Stat: %v", err)
- }
- contents := "Kilts"
- hdr.Xattrs = xattrs
- var buf bytes.Buffer
- writer := NewWriter(&buf)
- if err := writer.WriteHeader(hdr); err != nil {
- t.Fatal(err)
- }
- if _, err = writer.Write([]byte(contents)); err != nil {
- t.Fatal(err)
- }
- if err := writer.Close(); err != nil {
- t.Fatal(err)
- }
- // Test that we can get the xattrs back out of the archive.
- reader := NewReader(&buf)
- hdr, err = reader.Next()
- if err != nil {
- t.Fatal(err)
- }
- if !reflect.DeepEqual(hdr.Xattrs, xattrs) {
- t.Fatalf("xattrs did not survive round trip: got %+v, want %+v",
- hdr.Xattrs, xattrs)
- }
-}
-
-func TestPAXHeader(t *testing.T) {
- medName := strings.Repeat("CD", 50)
- longName := strings.Repeat("AB", 100)
- paxTests := [][2]string{
- {paxPath + "=/etc/hosts", "19 path=/etc/hosts\n"},
- {"a=b", "6 a=b\n"}, // Single digit length
- {"a=names", "11 a=names\n"}, // Test case involving carries
- {paxPath + "=" + longName, fmt.Sprintf("210 path=%s\n", longName)},
- {paxPath + "=" + medName, fmt.Sprintf("110 path=%s\n", medName)}}
-
- for _, test := range paxTests {
- key, expected := test[0], test[1]
- if result := paxHeader(key); result != expected {
- t.Fatalf("paxHeader: got %s, expected %s", result, expected)
- }
- }
-}
-
-func TestUSTARLongName(t *testing.T) {
- // Create an archive with a path that failed to split with USTAR extension in previous versions.
- fileinfo, err := os.Stat("testdata/small.txt")
- if err != nil {
- t.Fatal(err)
- }
- hdr, err := FileInfoHeader(fileinfo, "")
- hdr.Typeflag = TypeDir
- if err != nil {
- t.Fatalf("os.Stat:1 %v", err)
- }
- // Force a PAX long name to be written. The name was taken from a practical example
- // that fails and replaced ever char through numbers to anonymize the sample.
- longName := "/0000_0000000/00000-000000000/0000_0000000/00000-0000000000000/0000_0000000/00000-0000000-00000000/0000_0000000/00000000/0000_0000000/000/0000_0000000/00000000v00/0000_0000000/000000/0000_0000000/0000000/0000_0000000/00000y-00/0000/0000/00000000/0x000000/"
- hdr.Name = longName
-
- hdr.Size = 0
- var buf bytes.Buffer
- writer := NewWriter(&buf)
- if err := writer.WriteHeader(hdr); err != nil {
- t.Fatal(err)
- }
- if err := writer.Close(); err != nil {
- t.Fatal(err)
- }
- // Test that we can get a long name back out of the archive.
- reader := NewReader(&buf)
- hdr, err = reader.Next()
- if err != nil {
- t.Fatal(err)
- }
- if hdr.Name != longName {
- t.Fatal("Couldn't recover long name")
- }
-}
-
-func TestValidTypeflagWithPAXHeader(t *testing.T) {
- var buffer bytes.Buffer
- tw := NewWriter(&buffer)
-
- fileName := strings.Repeat("ab", 100)
-
- hdr := &Header{
- Name: fileName,
- Size: 4,
- Typeflag: 0,
- }
- if err := tw.WriteHeader(hdr); err != nil {
- t.Fatalf("Failed to write header: %s", err)
- }
- if _, err := tw.Write([]byte("fooo")); err != nil {
- t.Fatalf("Failed to write the file's data: %s", err)
- }
- tw.Close()
-
- tr := NewReader(&buffer)
-
- for {
- header, err := tr.Next()
- if err == io.EOF {
- break
- }
- if err != nil {
- t.Fatalf("Failed to read header: %s", err)
- }
- if header.Typeflag != 0 {
- t.Fatalf("Typeflag should've been 0, found %d", header.Typeflag)
- }
- }
-}
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