| // 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" |
| "encoding/hex" |
| "errors" |
| "io" |
| "io/ioutil" |
| "os" |
| "path" |
| "reflect" |
| "sort" |
| "strings" |
| "testing" |
| "testing/iotest" |
| "time" |
| ) |
| |
| func bytediff(a, b []byte) string { |
| const ( |
| uniqueA = "- " |
| uniqueB = "+ " |
| identity = " " |
| ) |
| var ss []string |
| sa := strings.Split(strings.TrimSpace(hex.Dump(a)), "\n") |
| sb := strings.Split(strings.TrimSpace(hex.Dump(b)), "\n") |
| for len(sa) > 0 && len(sb) > 0 { |
| if sa[0] == sb[0] { |
| ss = append(ss, identity+sa[0]) |
| } else { |
| ss = append(ss, uniqueA+sa[0]) |
| ss = append(ss, uniqueB+sb[0]) |
| } |
| sa, sb = sa[1:], sb[1:] |
| } |
| for len(sa) > 0 { |
| ss = append(ss, uniqueA+sa[0]) |
| sa = sa[1:] |
| } |
| for len(sb) > 0 { |
| ss = append(ss, uniqueB+sb[0]) |
| sb = sb[1:] |
| } |
| return strings.Join(ss, "\n") |
| } |
| |
| func TestWriter(t *testing.T) { |
| type ( |
| testHeader struct { // WriteHeader(hdr) == wantErr |
| hdr Header |
| wantErr error |
| } |
| testWrite struct { // Write(str) == (wantCnt, wantErr) |
| str string |
| wantCnt int |
| wantErr error |
| } |
| testReadFrom struct { // ReadFrom(testFile{ops}) == (wantCnt, wantErr) |
| ops fileOps |
| wantCnt int64 |
| wantErr error |
| } |
| testClose struct { // Close() == wantErr |
| wantErr error |
| } |
| testFnc interface{} // testHeader | testWrite | testReadFrom | testClose |
| ) |
| |
| vectors := []struct { |
| file string // Optional filename of expected output |
| tests []testFnc |
| }{{ |
| // 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", |
| tests: []testFnc{ |
| testHeader{Header{ |
| Typeflag: TypeReg, |
| Name: "small.txt", |
| Size: 5, |
| Mode: 0640, |
| Uid: 73025, |
| Gid: 5000, |
| Uname: "dsymonds", |
| Gname: "eng", |
| ModTime: time.Unix(1246508266, 0), |
| }, nil}, |
| testWrite{"Kilts", 5, nil}, |
| |
| testHeader{Header{ |
| Typeflag: TypeReg, |
| Name: "small2.txt", |
| Size: 11, |
| Mode: 0640, |
| Uid: 73025, |
| Uname: "dsymonds", |
| Gname: "eng", |
| Gid: 5000, |
| ModTime: time.Unix(1245217492, 0), |
| }, nil}, |
| testWrite{"Google.com\n", 11, nil}, |
| |
| testHeader{Header{ |
| Typeflag: TypeSymlink, |
| Name: "link.txt", |
| Linkname: "small.txt", |
| Mode: 0777, |
| Uid: 1000, |
| Gid: 1000, |
| Uname: "strings", |
| Gname: "strings", |
| ModTime: time.Unix(1314603082, 0), |
| }, nil}, |
| testWrite{"", 0, nil}, |
| |
| testClose{nil}, |
| }, |
| }, { |
| // 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", |
| tests: []testFnc{ |
| testHeader{Header{ |
| Typeflag: TypeReg, |
| Name: "tmp/16gig.txt", |
| Size: 16 << 30, |
| Mode: 0640, |
| Uid: 73025, |
| Gid: 5000, |
| Uname: "dsymonds", |
| Gname: "eng", |
| ModTime: time.Unix(1254699560, 0), |
| Format: FormatGNU, |
| }, nil}, |
| }, |
| }, { |
| // This truncated file was produced using this library. |
| // It was verified to work with GNU tar 1.27.1 and BSD tar 3.1.2. |
| // dd if=/dev/zero bs=1G count=16 >> writer-big-long.tar |
| // gnutar -xvf writer-big-long.tar |
| // bsdtar -xvf writer-big-long.tar |
| // |
| // This file is in PAX format. |
| file: "testdata/writer-big-long.tar", |
| tests: []testFnc{ |
| testHeader{Header{ |
| Typeflag: TypeReg, |
| Name: strings.Repeat("longname/", 15) + "16gig.txt", |
| Size: 16 << 30, |
| Mode: 0644, |
| Uid: 1000, |
| Gid: 1000, |
| Uname: "guillaume", |
| Gname: "guillaume", |
| ModTime: time.Unix(1399583047, 0), |
| }, nil}, |
| }, |
| }, { |
| // This file was produced using GNU tar v1.17. |
| // gnutar -b 4 --format=ustar (longname/)*15 + file.txt |
| file: "testdata/ustar.tar", |
| tests: []testFnc{ |
| testHeader{Header{ |
| Typeflag: TypeReg, |
| Name: strings.Repeat("longname/", 15) + "file.txt", |
| Size: 6, |
| Mode: 0644, |
| Uid: 501, |
| Gid: 20, |
| Uname: "shane", |
| Gname: "staff", |
| ModTime: time.Unix(1360135598, 0), |
| }, nil}, |
| testWrite{"hello\n", 6, nil}, |
| testClose{nil}, |
| }, |
| }, { |
| // This file was produced using GNU tar v1.26: |
| // echo "Slartibartfast" > file.txt |
| // ln file.txt hard.txt |
| // tar -b 1 --format=ustar -c -f hardlink.tar file.txt hard.txt |
| file: "testdata/hardlink.tar", |
| tests: []testFnc{ |
| testHeader{Header{ |
| Typeflag: TypeReg, |
| Name: "file.txt", |
| Size: 15, |
| Mode: 0644, |
| Uid: 1000, |
| Gid: 100, |
| Uname: "vbatts", |
| Gname: "users", |
| ModTime: time.Unix(1425484303, 0), |
| }, nil}, |
| testWrite{"Slartibartfast\n", 15, nil}, |
| |
| testHeader{Header{ |
| Typeflag: TypeLink, |
| Name: "hard.txt", |
| Linkname: "file.txt", |
| Mode: 0644, |
| Uid: 1000, |
| Gid: 100, |
| Uname: "vbatts", |
| Gname: "users", |
| ModTime: time.Unix(1425484303, 0), |
| }, nil}, |
| testWrite{"", 0, nil}, |
| |
| testClose{nil}, |
| }, |
| }, { |
| tests: []testFnc{ |
| testHeader{Header{ |
| Typeflag: TypeReg, |
| Name: "bad-null.txt", |
| Xattrs: map[string]string{"null\x00null\x00": "fizzbuzz"}, |
| }, headerError{}}, |
| }, |
| }, { |
| tests: []testFnc{ |
| testHeader{Header{ |
| Typeflag: TypeReg, |
| Name: "null\x00.txt", |
| }, headerError{}}, |
| }, |
| }, { |
| file: "testdata/pax-records.tar", |
| tests: []testFnc{ |
| testHeader{Header{ |
| Typeflag: TypeReg, |
| Name: "file", |
| Uname: strings.Repeat("long", 10), |
| PAXRecords: map[string]string{ |
| "path": "FILE", // Should be ignored |
| "GNU.sparse.map": "0,0", // Should be ignored |
| "comment": "Hello, 世界", |
| "GOLANG.pkg": "tar", |
| }, |
| }, nil}, |
| testClose{nil}, |
| }, |
| }, { |
| // Craft a theoretically valid PAX archive with global headers. |
| // The GNU and BSD tar tools do not parse these the same way. |
| // |
| // BSD tar v3.1.2 parses and ignores all global headers; |
| // the behavior is verified by researching the source code. |
| // |
| // $ bsdtar -tvf pax-global-records.tar |
| // ---------- 0 0 0 0 Dec 31 1969 file1 |
| // ---------- 0 0 0 0 Dec 31 1969 file2 |
| // ---------- 0 0 0 0 Dec 31 1969 file3 |
| // ---------- 0 0 0 0 May 13 2014 file4 |
| // |
| // GNU tar v1.27.1 applies global headers to subsequent records, |
| // but does not do the following properly: |
| // * It does not treat an empty record as deletion. |
| // * It does not use subsequent global headers to update previous ones. |
| // |
| // $ gnutar -tvf pax-global-records.tar |
| // ---------- 0/0 0 2017-07-13 19:40 global1 |
| // ---------- 0/0 0 2017-07-13 19:40 file2 |
| // gnutar: Substituting `.' for empty member name |
| // ---------- 0/0 0 1969-12-31 16:00 |
| // gnutar: Substituting `.' for empty member name |
| // ---------- 0/0 0 2014-05-13 09:53 |
| // |
| // According to the PAX specification, this should have been the result: |
| // ---------- 0/0 0 2017-07-13 19:40 global1 |
| // ---------- 0/0 0 2017-07-13 19:40 file2 |
| // ---------- 0/0 0 2017-07-13 19:40 file3 |
| // ---------- 0/0 0 2014-05-13 09:53 file4 |
| file: "testdata/pax-global-records.tar", |
| tests: []testFnc{ |
| testHeader{Header{ |
| Typeflag: TypeXGlobalHeader, |
| PAXRecords: map[string]string{"path": "global1", "mtime": "1500000000.0"}, |
| }, nil}, |
| testHeader{Header{ |
| Typeflag: TypeReg, Name: "file1", |
| }, nil}, |
| testHeader{Header{ |
| Typeflag: TypeReg, |
| Name: "file2", |
| PAXRecords: map[string]string{"path": "file2"}, |
| }, nil}, |
| testHeader{Header{ |
| Typeflag: TypeXGlobalHeader, |
| PAXRecords: map[string]string{"path": ""}, // Should delete "path", but keep "mtime" |
| }, nil}, |
| testHeader{Header{ |
| Typeflag: TypeReg, Name: "file3", |
| }, nil}, |
| testHeader{Header{ |
| Typeflag: TypeReg, |
| Name: "file4", |
| ModTime: time.Unix(1400000000, 0), |
| PAXRecords: map[string]string{"mtime": "1400000000"}, |
| }, nil}, |
| testClose{nil}, |
| }, |
| }, { |
| file: "testdata/gnu-utf8.tar", |
| tests: []testFnc{ |
| testHeader{Header{ |
| Typeflag: TypeReg, |
| Name: "☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹☺☻☹", |
| Mode: 0644, |
| Uid: 1000, Gid: 1000, |
| Uname: "☺", |
| Gname: "⚹", |
| ModTime: time.Unix(0, 0), |
| Format: FormatGNU, |
| }, nil}, |
| testClose{nil}, |
| }, |
| }, { |
| file: "testdata/gnu-not-utf8.tar", |
| tests: []testFnc{ |
| testHeader{Header{ |
| Typeflag: TypeReg, |
| Name: "hi\x80\x81\x82\x83bye", |
| Mode: 0644, |
| Uid: 1000, |
| Gid: 1000, |
| Uname: "rawr", |
| Gname: "dsnet", |
| ModTime: time.Unix(0, 0), |
| Format: FormatGNU, |
| }, nil}, |
| testClose{nil}, |
| }, |
| // TODO(dsnet): Re-enable this test when adding sparse support. |
| // See https://golang.org/issue/22735 |
| /* |
| }, { |
| file: "testdata/gnu-nil-sparse-data.tar", |
| tests: []testFnc{ |
| testHeader{Header{ |
| Typeflag: TypeGNUSparse, |
| Name: "sparse.db", |
| Size: 1000, |
| SparseHoles: []sparseEntry{{Offset: 1000, Length: 0}}, |
| }, nil}, |
| testWrite{strings.Repeat("0123456789", 100), 1000, nil}, |
| testClose{}, |
| }, |
| }, { |
| file: "testdata/gnu-nil-sparse-hole.tar", |
| tests: []testFnc{ |
| testHeader{Header{ |
| Typeflag: TypeGNUSparse, |
| Name: "sparse.db", |
| Size: 1000, |
| SparseHoles: []sparseEntry{{Offset: 0, Length: 1000}}, |
| }, nil}, |
| testWrite{strings.Repeat("\x00", 1000), 1000, nil}, |
| testClose{}, |
| }, |
| }, { |
| file: "testdata/pax-nil-sparse-data.tar", |
| tests: []testFnc{ |
| testHeader{Header{ |
| Typeflag: TypeReg, |
| Name: "sparse.db", |
| Size: 1000, |
| SparseHoles: []sparseEntry{{Offset: 1000, Length: 0}}, |
| }, nil}, |
| testWrite{strings.Repeat("0123456789", 100), 1000, nil}, |
| testClose{}, |
| }, |
| }, { |
| file: "testdata/pax-nil-sparse-hole.tar", |
| tests: []testFnc{ |
| testHeader{Header{ |
| Typeflag: TypeReg, |
| Name: "sparse.db", |
| Size: 1000, |
| SparseHoles: []sparseEntry{{Offset: 0, Length: 1000}}, |
| }, nil}, |
| testWrite{strings.Repeat("\x00", 1000), 1000, nil}, |
| testClose{}, |
| }, |
| }, { |
| file: "testdata/gnu-sparse-big.tar", |
| tests: []testFnc{ |
| testHeader{Header{ |
| Typeflag: TypeGNUSparse, |
| Name: "gnu-sparse", |
| Size: 6e10, |
| SparseHoles: []sparseEntry{ |
| {Offset: 0e10, Length: 1e10 - 100}, |
| {Offset: 1e10, Length: 1e10 - 100}, |
| {Offset: 2e10, Length: 1e10 - 100}, |
| {Offset: 3e10, Length: 1e10 - 100}, |
| {Offset: 4e10, Length: 1e10 - 100}, |
| {Offset: 5e10, Length: 1e10 - 100}, |
| }, |
| }, nil}, |
| testReadFrom{fileOps{ |
| int64(1e10 - blockSize), |
| strings.Repeat("\x00", blockSize-100) + strings.Repeat("0123456789", 10), |
| int64(1e10 - blockSize), |
| strings.Repeat("\x00", blockSize-100) + strings.Repeat("0123456789", 10), |
| int64(1e10 - blockSize), |
| strings.Repeat("\x00", blockSize-100) + strings.Repeat("0123456789", 10), |
| int64(1e10 - blockSize), |
| strings.Repeat("\x00", blockSize-100) + strings.Repeat("0123456789", 10), |
| int64(1e10 - blockSize), |
| strings.Repeat("\x00", blockSize-100) + strings.Repeat("0123456789", 10), |
| int64(1e10 - blockSize), |
| strings.Repeat("\x00", blockSize-100) + strings.Repeat("0123456789", 10), |
| }, 6e10, nil}, |
| testClose{nil}, |
| }, |
| }, { |
| file: "testdata/pax-sparse-big.tar", |
| tests: []testFnc{ |
| testHeader{Header{ |
| Typeflag: TypeReg, |
| Name: "pax-sparse", |
| Size: 6e10, |
| SparseHoles: []sparseEntry{ |
| {Offset: 0e10, Length: 1e10 - 100}, |
| {Offset: 1e10, Length: 1e10 - 100}, |
| {Offset: 2e10, Length: 1e10 - 100}, |
| {Offset: 3e10, Length: 1e10 - 100}, |
| {Offset: 4e10, Length: 1e10 - 100}, |
| {Offset: 5e10, Length: 1e10 - 100}, |
| }, |
| }, nil}, |
| testReadFrom{fileOps{ |
| int64(1e10 - blockSize), |
| strings.Repeat("\x00", blockSize-100) + strings.Repeat("0123456789", 10), |
| int64(1e10 - blockSize), |
| strings.Repeat("\x00", blockSize-100) + strings.Repeat("0123456789", 10), |
| int64(1e10 - blockSize), |
| strings.Repeat("\x00", blockSize-100) + strings.Repeat("0123456789", 10), |
| int64(1e10 - blockSize), |
| strings.Repeat("\x00", blockSize-100) + strings.Repeat("0123456789", 10), |
| int64(1e10 - blockSize), |
| strings.Repeat("\x00", blockSize-100) + strings.Repeat("0123456789", 10), |
| int64(1e10 - blockSize), |
| strings.Repeat("\x00", blockSize-100) + strings.Repeat("0123456789", 10), |
| }, 6e10, nil}, |
| testClose{nil}, |
| }, |
| */ |
| }, { |
| file: "testdata/trailing-slash.tar", |
| tests: []testFnc{ |
| testHeader{Header{Name: strings.Repeat("123456789/", 30)}, nil}, |
| testClose{nil}, |
| }, |
| }, { |
| // Automatically promote zero value of Typeflag depending on the name. |
| file: "testdata/file-and-dir.tar", |
| tests: []testFnc{ |
| testHeader{Header{Name: "small.txt", Size: 5}, nil}, |
| testWrite{"Kilts", 5, nil}, |
| testHeader{Header{Name: "dir/"}, nil}, |
| testClose{nil}, |
| }, |
| }} |
| |
| equalError := func(x, y error) bool { |
| _, ok1 := x.(headerError) |
| _, ok2 := y.(headerError) |
| if ok1 || ok2 { |
| return ok1 && ok2 |
| } |
| return x == y |
| } |
| for _, v := range vectors { |
| t.Run(path.Base(v.file), func(t *testing.T) { |
| const maxSize = 10 << 10 // 10KiB |
| buf := new(bytes.Buffer) |
| tw := NewWriter(iotest.TruncateWriter(buf, maxSize)) |
| |
| for i, tf := range v.tests { |
| switch tf := tf.(type) { |
| case testHeader: |
| err := tw.WriteHeader(&tf.hdr) |
| if !equalError(err, tf.wantErr) { |
| t.Fatalf("test %d, WriteHeader() = %v, want %v", i, err, tf.wantErr) |
| } |
| case testWrite: |
| got, err := tw.Write([]byte(tf.str)) |
| if got != tf.wantCnt || !equalError(err, tf.wantErr) { |
| t.Fatalf("test %d, Write() = (%d, %v), want (%d, %v)", i, got, err, tf.wantCnt, tf.wantErr) |
| } |
| case testReadFrom: |
| f := &testFile{ops: tf.ops} |
| got, err := tw.readFrom(f) |
| if _, ok := err.(testError); ok { |
| t.Errorf("test %d, ReadFrom(): %v", i, err) |
| } else if got != tf.wantCnt || !equalError(err, tf.wantErr) { |
| t.Errorf("test %d, ReadFrom() = (%d, %v), want (%d, %v)", i, got, err, tf.wantCnt, tf.wantErr) |
| } |
| if len(f.ops) > 0 { |
| t.Errorf("test %d, expected %d more operations", i, len(f.ops)) |
| } |
| case testClose: |
| err := tw.Close() |
| if !equalError(err, tf.wantErr) { |
| t.Fatalf("test %d, Close() = %v, want %v", i, err, tf.wantErr) |
| } |
| default: |
| t.Fatalf("test %d, unknown test operation: %T", i, tf) |
| } |
| } |
| |
| if v.file != "" { |
| want, err := ioutil.ReadFile(v.file) |
| if err != nil { |
| t.Fatalf("ReadFile() = %v, want nil", err) |
| } |
| got := buf.Bytes() |
| if !bytes.Equal(want, got) { |
| t.Fatalf("incorrect result: (-got +want)\n%v", bytediff(got, want)) |
| } |
| } |
| }) |
| } |
| } |
| |
| 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.0")) { |
| 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.0")) { |
| 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.0")) { |
| 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 TestPaxHeadersSorted(t *testing.T) { |
| 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 := strings.Repeat(" ", int(hdr.Size)) |
| |
| hdr.Xattrs = map[string]string{ |
| "foo": "foo", |
| "bar": "bar", |
| "baz": "baz", |
| "qux": "qux", |
| } |
| |
| 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.0")) { |
| t.Fatal("Expected at least one PAX header to be written.") |
| } |
| |
| // xattr bar should always appear before others |
| indices := []int{ |
| bytes.Index(buf.Bytes(), []byte("bar=bar")), |
| bytes.Index(buf.Bytes(), []byte("baz=baz")), |
| bytes.Index(buf.Bytes(), []byte("foo=foo")), |
| bytes.Index(buf.Bytes(), []byte("qux=qux")), |
| } |
| if !sort.IntsAreSorted(indices) { |
| t.Fatal("PAX headers are not sorted") |
| } |
| } |
| |
| 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 != TypeReg { |
| t.Fatalf("Typeflag should've been %d, found %d", TypeReg, header.Typeflag) |
| } |
| } |
| } |
| |
| // failOnceWriter fails exactly once and then always reports success. |
| type failOnceWriter bool |
| |
| func (w *failOnceWriter) Write(b []byte) (int, error) { |
| if !*w { |
| return 0, io.ErrShortWrite |
| } |
| *w = true |
| return len(b), nil |
| } |
| |
| func TestWriterErrors(t *testing.T) { |
| t.Run("HeaderOnly", func(t *testing.T) { |
| tw := NewWriter(new(bytes.Buffer)) |
| hdr := &Header{Name: "dir/", Typeflag: TypeDir} |
| if err := tw.WriteHeader(hdr); err != nil { |
| t.Fatalf("WriteHeader() = %v, want nil", err) |
| } |
| if _, err := tw.Write([]byte{0x00}); err != ErrWriteTooLong { |
| t.Fatalf("Write() = %v, want %v", err, ErrWriteTooLong) |
| } |
| }) |
| |
| t.Run("NegativeSize", func(t *testing.T) { |
| tw := NewWriter(new(bytes.Buffer)) |
| hdr := &Header{Name: "small.txt", Size: -1} |
| if err := tw.WriteHeader(hdr); err == nil { |
| t.Fatalf("WriteHeader() = nil, want non-nil error") |
| } |
| }) |
| |
| t.Run("BeforeHeader", func(t *testing.T) { |
| tw := NewWriter(new(bytes.Buffer)) |
| if _, err := tw.Write([]byte("Kilts")); err != ErrWriteTooLong { |
| t.Fatalf("Write() = %v, want %v", err, ErrWriteTooLong) |
| } |
| }) |
| |
| t.Run("AfterClose", func(t *testing.T) { |
| tw := NewWriter(new(bytes.Buffer)) |
| hdr := &Header{Name: "small.txt"} |
| if err := tw.WriteHeader(hdr); err != nil { |
| t.Fatalf("WriteHeader() = %v, want nil", err) |
| } |
| if err := tw.Close(); err != nil { |
| t.Fatalf("Close() = %v, want nil", err) |
| } |
| if _, err := tw.Write([]byte("Kilts")); err != ErrWriteAfterClose { |
| t.Fatalf("Write() = %v, want %v", err, ErrWriteAfterClose) |
| } |
| if err := tw.Flush(); err != ErrWriteAfterClose { |
| t.Fatalf("Flush() = %v, want %v", err, ErrWriteAfterClose) |
| } |
| if err := tw.Close(); err != nil { |
| t.Fatalf("Close() = %v, want nil", err) |
| } |
| }) |
| |
| t.Run("PrematureFlush", func(t *testing.T) { |
| tw := NewWriter(new(bytes.Buffer)) |
| hdr := &Header{Name: "small.txt", Size: 5} |
| if err := tw.WriteHeader(hdr); err != nil { |
| t.Fatalf("WriteHeader() = %v, want nil", err) |
| } |
| if err := tw.Flush(); err == nil { |
| t.Fatalf("Flush() = %v, want non-nil error", err) |
| } |
| }) |
| |
| t.Run("PrematureClose", func(t *testing.T) { |
| tw := NewWriter(new(bytes.Buffer)) |
| hdr := &Header{Name: "small.txt", Size: 5} |
| if err := tw.WriteHeader(hdr); err != nil { |
| t.Fatalf("WriteHeader() = %v, want nil", err) |
| } |
| if err := tw.Close(); err == nil { |
| t.Fatalf("Close() = %v, want non-nil error", err) |
| } |
| }) |
| |
| t.Run("Persistence", func(t *testing.T) { |
| tw := NewWriter(new(failOnceWriter)) |
| if err := tw.WriteHeader(&Header{}); err != io.ErrShortWrite { |
| t.Fatalf("WriteHeader() = %v, want %v", err, io.ErrShortWrite) |
| } |
| if err := tw.WriteHeader(&Header{Name: "small.txt"}); err == nil { |
| t.Errorf("WriteHeader() = got %v, want non-nil error", err) |
| } |
| if _, err := tw.Write(nil); err == nil { |
| t.Errorf("Write() = %v, want non-nil error", err) |
| } |
| if err := tw.Flush(); err == nil { |
| t.Errorf("Flush() = %v, want non-nil error", err) |
| } |
| if err := tw.Close(); err == nil { |
| t.Errorf("Close() = %v, want non-nil error", err) |
| } |
| }) |
| } |
| |
| func TestSplitUSTARPath(t *testing.T) { |
| sr := strings.Repeat |
| |
| vectors := []struct { |
| input string // Input path |
| prefix string // Expected output prefix |
| suffix string // Expected output suffix |
| ok bool // Split success? |
| }{ |
| {"", "", "", false}, |
| {"abc", "", "", false}, |
| {"用戶名", "", "", false}, |
| {sr("a", nameSize), "", "", false}, |
| {sr("a", nameSize) + "/", "", "", false}, |
| {sr("a", nameSize) + "/a", sr("a", nameSize), "a", true}, |
| {sr("a", prefixSize) + "/", "", "", false}, |
| {sr("a", prefixSize) + "/a", sr("a", prefixSize), "a", true}, |
| {sr("a", nameSize+1), "", "", false}, |
| {sr("/", nameSize+1), sr("/", nameSize-1), "/", true}, |
| {sr("a", prefixSize) + "/" + sr("b", nameSize), |
| sr("a", prefixSize), sr("b", nameSize), true}, |
| {sr("a", prefixSize) + "//" + sr("b", nameSize), "", "", false}, |
| {sr("a/", nameSize), sr("a/", 77) + "a", sr("a/", 22), true}, |
| } |
| |
| for _, v := range vectors { |
| prefix, suffix, ok := splitUSTARPath(v.input) |
| if prefix != v.prefix || suffix != v.suffix || ok != v.ok { |
| t.Errorf("splitUSTARPath(%q):\ngot (%q, %q, %v)\nwant (%q, %q, %v)", |
| v.input, prefix, suffix, ok, v.prefix, v.suffix, v.ok) |
| } |
| } |
| } |
| |
| // TestIssue12594 tests that the Writer does not attempt to populate the prefix |
| // field when encoding a header in the GNU format. The prefix field is valid |
| // in USTAR and PAX, but not GNU. |
| func TestIssue12594(t *testing.T) { |
| names := []string{ |
| "0/1/2/3/4/5/6/7/8/9/10/11/12/13/14/15/16/17/18/19/20/21/22/23/24/25/26/27/28/29/30/file.txt", |
| "0/1/2/3/4/5/6/7/8/9/10/11/12/13/14/15/16/17/18/19/20/21/22/23/24/25/26/27/28/29/30/31/32/33/file.txt", |
| "0/1/2/3/4/5/6/7/8/9/10/11/12/13/14/15/16/17/18/19/20/21/22/23/24/25/26/27/28/29/30/31/32/333/file.txt", |
| "0/1/2/3/4/5/6/7/8/9/10/11/12/13/14/15/16/17/18/19/20/21/22/23/24/25/26/27/28/29/30/31/32/33/34/35/36/37/38/39/40/file.txt", |
| "0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000/file.txt", |
| "/home/support/.openoffice.org/3/user/uno_packages/cache/registry/com.sun.star.comp.deployment.executable.PackageRegistryBackend", |
| } |
| |
| for i, name := range names { |
| var b bytes.Buffer |
| |
| tw := NewWriter(&b) |
| if err := tw.WriteHeader(&Header{ |
| Name: name, |
| Uid: 1 << 25, // Prevent USTAR format |
| }); err != nil { |
| t.Errorf("test %d, unexpected WriteHeader error: %v", i, err) |
| } |
| if err := tw.Close(); err != nil { |
| t.Errorf("test %d, unexpected Close error: %v", i, err) |
| } |
| |
| // The prefix field should never appear in the GNU format. |
| var blk block |
| copy(blk[:], b.Bytes()) |
| prefix := string(blk.USTAR().Prefix()) |
| if i := strings.IndexByte(prefix, 0); i >= 0 { |
| prefix = prefix[:i] // Truncate at the NUL terminator |
| } |
| if blk.GetFormat() == FormatGNU && len(prefix) > 0 && strings.HasPrefix(name, prefix) { |
| t.Errorf("test %d, found prefix in GNU format: %s", i, prefix) |
| } |
| |
| tr := NewReader(&b) |
| hdr, err := tr.Next() |
| if err != nil { |
| t.Errorf("test %d, unexpected Next error: %v", i, err) |
| } |
| if hdr.Name != name { |
| t.Errorf("test %d, hdr.Name = %s, want %s", i, hdr.Name, name) |
| } |
| } |
| } |
| |
| // testNonEmptyWriter wraps an io.Writer and ensures that |
| // Write is never called with an empty buffer. |
| type testNonEmptyWriter struct{ io.Writer } |
| |
| func (w testNonEmptyWriter) Write(b []byte) (int, error) { |
| if len(b) == 0 { |
| return 0, errors.New("unexpected empty Write call") |
| } |
| return w.Writer.Write(b) |
| } |
| |
| func TestFileWriter(t *testing.T) { |
| type ( |
| testWrite struct { // Write(str) == (wantCnt, wantErr) |
| str string |
| wantCnt int |
| wantErr error |
| } |
| testReadFrom struct { // ReadFrom(testFile{ops}) == (wantCnt, wantErr) |
| ops fileOps |
| wantCnt int64 |
| wantErr error |
| } |
| testRemaining struct { // LogicalRemaining() == wantLCnt, PhysicalRemaining() == wantPCnt |
| wantLCnt int64 |
| wantPCnt int64 |
| } |
| testFnc interface{} // testWrite | testReadFrom | testRemaining |
| ) |
| |
| type ( |
| makeReg struct { |
| size int64 |
| wantStr string |
| } |
| makeSparse struct { |
| makeReg makeReg |
| sph sparseHoles |
| size int64 |
| } |
| fileMaker interface{} // makeReg | makeSparse |
| ) |
| |
| vectors := []struct { |
| maker fileMaker |
| tests []testFnc |
| }{{ |
| maker: makeReg{0, ""}, |
| tests: []testFnc{ |
| testRemaining{0, 0}, |
| testWrite{"", 0, nil}, |
| testWrite{"a", 0, ErrWriteTooLong}, |
| testReadFrom{fileOps{""}, 0, nil}, |
| testReadFrom{fileOps{"a"}, 0, ErrWriteTooLong}, |
| testRemaining{0, 0}, |
| }, |
| }, { |
| maker: makeReg{1, "a"}, |
| tests: []testFnc{ |
| testRemaining{1, 1}, |
| testWrite{"", 0, nil}, |
| testWrite{"a", 1, nil}, |
| testWrite{"bcde", 0, ErrWriteTooLong}, |
| testWrite{"", 0, nil}, |
| testReadFrom{fileOps{""}, 0, nil}, |
| testReadFrom{fileOps{"a"}, 0, ErrWriteTooLong}, |
| testRemaining{0, 0}, |
| }, |
| }, { |
| maker: makeReg{5, "hello"}, |
| tests: []testFnc{ |
| testRemaining{5, 5}, |
| testWrite{"hello", 5, nil}, |
| testRemaining{0, 0}, |
| }, |
| }, { |
| maker: makeReg{5, "\x00\x00\x00\x00\x00"}, |
| tests: []testFnc{ |
| testRemaining{5, 5}, |
| testReadFrom{fileOps{"\x00\x00\x00\x00\x00"}, 5, nil}, |
| testRemaining{0, 0}, |
| }, |
| }, { |
| maker: makeReg{5, "\x00\x00\x00\x00\x00"}, |
| tests: []testFnc{ |
| testRemaining{5, 5}, |
| testReadFrom{fileOps{"\x00\x00\x00\x00\x00extra"}, 5, ErrWriteTooLong}, |
| testRemaining{0, 0}, |
| }, |
| }, { |
| maker: makeReg{5, "abc\x00\x00"}, |
| tests: []testFnc{ |
| testRemaining{5, 5}, |
| testWrite{"abc", 3, nil}, |
| testRemaining{2, 2}, |
| testReadFrom{fileOps{"\x00\x00"}, 2, nil}, |
| testRemaining{0, 0}, |
| }, |
| }, { |
| maker: makeReg{5, "\x00\x00abc"}, |
| tests: []testFnc{ |
| testRemaining{5, 5}, |
| testWrite{"\x00\x00", 2, nil}, |
| testRemaining{3, 3}, |
| testWrite{"abc", 3, nil}, |
| testReadFrom{fileOps{"z"}, 0, ErrWriteTooLong}, |
| testWrite{"z", 0, ErrWriteTooLong}, |
| testRemaining{0, 0}, |
| }, |
| }, { |
| maker: makeSparse{makeReg{5, "abcde"}, sparseHoles{{2, 3}}, 8}, |
| tests: []testFnc{ |
| testRemaining{8, 5}, |
| testWrite{"ab\x00\x00\x00cde", 8, nil}, |
| testWrite{"a", 0, ErrWriteTooLong}, |
| testRemaining{0, 0}, |
| }, |
| }, { |
| maker: makeSparse{makeReg{5, "abcde"}, sparseHoles{{2, 3}}, 8}, |
| tests: []testFnc{ |
| testWrite{"ab\x00\x00\x00cdez", 8, ErrWriteTooLong}, |
| testRemaining{0, 0}, |
| }, |
| }, { |
| maker: makeSparse{makeReg{5, "abcde"}, sparseHoles{{2, 3}}, 8}, |
| tests: []testFnc{ |
| testWrite{"ab\x00", 3, nil}, |
| testRemaining{5, 3}, |
| testWrite{"\x00\x00cde", 5, nil}, |
| testWrite{"a", 0, ErrWriteTooLong}, |
| testRemaining{0, 0}, |
| }, |
| }, { |
| maker: makeSparse{makeReg{5, "abcde"}, sparseHoles{{2, 3}}, 8}, |
| tests: []testFnc{ |
| testWrite{"ab", 2, nil}, |
| testRemaining{6, 3}, |
| testReadFrom{fileOps{int64(3), "cde"}, 6, nil}, |
| testRemaining{0, 0}, |
| }, |
| }, { |
| maker: makeSparse{makeReg{5, "abcde"}, sparseHoles{{2, 3}}, 8}, |
| tests: []testFnc{ |
| testReadFrom{fileOps{"ab", int64(3), "cde"}, 8, nil}, |
| testRemaining{0, 0}, |
| }, |
| }, { |
| maker: makeSparse{makeReg{5, "abcde"}, sparseHoles{{2, 3}}, 8}, |
| tests: []testFnc{ |
| testReadFrom{fileOps{"ab", int64(3), "cdeX"}, 8, ErrWriteTooLong}, |
| testRemaining{0, 0}, |
| }, |
| }, { |
| maker: makeSparse{makeReg{4, "abcd"}, sparseHoles{{2, 3}}, 8}, |
| tests: []testFnc{ |
| testReadFrom{fileOps{"ab", int64(3), "cd"}, 7, io.ErrUnexpectedEOF}, |
| testRemaining{1, 0}, |
| }, |
| }, { |
| maker: makeSparse{makeReg{4, "abcd"}, sparseHoles{{2, 3}}, 8}, |
| tests: []testFnc{ |
| testReadFrom{fileOps{"ab", int64(3), "cde"}, 7, errMissData}, |
| testRemaining{1, 0}, |
| }, |
| }, { |
| maker: makeSparse{makeReg{6, "abcde"}, sparseHoles{{2, 3}}, 8}, |
| tests: []testFnc{ |
| testReadFrom{fileOps{"ab", int64(3), "cde"}, 8, errUnrefData}, |
| testRemaining{0, 1}, |
| }, |
| }, { |
| maker: makeSparse{makeReg{4, "abcd"}, sparseHoles{{2, 3}}, 8}, |
| tests: []testFnc{ |
| testWrite{"ab", 2, nil}, |
| testRemaining{6, 2}, |
| testWrite{"\x00\x00\x00", 3, nil}, |
| testRemaining{3, 2}, |
| testWrite{"cde", 2, errMissData}, |
| testRemaining{1, 0}, |
| }, |
| }, { |
| maker: makeSparse{makeReg{6, "abcde"}, sparseHoles{{2, 3}}, 8}, |
| tests: []testFnc{ |
| testWrite{"ab", 2, nil}, |
| testRemaining{6, 4}, |
| testWrite{"\x00\x00\x00", 3, nil}, |
| testRemaining{3, 4}, |
| testWrite{"cde", 3, errUnrefData}, |
| testRemaining{0, 1}, |
| }, |
| }, { |
| maker: makeSparse{makeReg{3, "abc"}, sparseHoles{{0, 2}, {5, 2}}, 7}, |
| tests: []testFnc{ |
| testRemaining{7, 3}, |
| testWrite{"\x00\x00abc\x00\x00", 7, nil}, |
| testRemaining{0, 0}, |
| }, |
| }, { |
| maker: makeSparse{makeReg{3, "abc"}, sparseHoles{{0, 2}, {5, 2}}, 7}, |
| tests: []testFnc{ |
| testRemaining{7, 3}, |
| testReadFrom{fileOps{int64(2), "abc", int64(1), "\x00"}, 7, nil}, |
| testRemaining{0, 0}, |
| }, |
| }, { |
| maker: makeSparse{makeReg{3, ""}, sparseHoles{{0, 2}, {5, 2}}, 7}, |
| tests: []testFnc{ |
| testWrite{"abcdefg", 0, errWriteHole}, |
| }, |
| }, { |
| maker: makeSparse{makeReg{3, "abc"}, sparseHoles{{0, 2}, {5, 2}}, 7}, |
| tests: []testFnc{ |
| testWrite{"\x00\x00abcde", 5, errWriteHole}, |
| }, |
| }, { |
| maker: makeSparse{makeReg{3, "abc"}, sparseHoles{{0, 2}, {5, 2}}, 7}, |
| tests: []testFnc{ |
| testWrite{"\x00\x00abc\x00\x00z", 7, ErrWriteTooLong}, |
| testRemaining{0, 0}, |
| }, |
| }, { |
| maker: makeSparse{makeReg{3, "abc"}, sparseHoles{{0, 2}, {5, 2}}, 7}, |
| tests: []testFnc{ |
| testWrite{"\x00\x00", 2, nil}, |
| testRemaining{5, 3}, |
| testWrite{"abc", 3, nil}, |
| testRemaining{2, 0}, |
| testWrite{"\x00\x00", 2, nil}, |
| testRemaining{0, 0}, |
| }, |
| }, { |
| maker: makeSparse{makeReg{2, "ab"}, sparseHoles{{0, 2}, {5, 2}}, 7}, |
| tests: []testFnc{ |
| testWrite{"\x00\x00", 2, nil}, |
| testWrite{"abc", 2, errMissData}, |
| testWrite{"\x00\x00", 0, errMissData}, |
| }, |
| }, { |
| maker: makeSparse{makeReg{4, "abc"}, sparseHoles{{0, 2}, {5, 2}}, 7}, |
| tests: []testFnc{ |
| testWrite{"\x00\x00", 2, nil}, |
| testWrite{"abc", 3, nil}, |
| testWrite{"\x00\x00", 2, errUnrefData}, |
| }, |
| }} |
| |
| for i, v := range vectors { |
| var wantStr string |
| bb := new(bytes.Buffer) |
| w := testNonEmptyWriter{bb} |
| var fw fileWriter |
| switch maker := v.maker.(type) { |
| case makeReg: |
| fw = ®FileWriter{w, maker.size} |
| wantStr = maker.wantStr |
| case makeSparse: |
| if !validateSparseEntries(maker.sph, maker.size) { |
| t.Fatalf("invalid sparse map: %v", maker.sph) |
| } |
| spd := invertSparseEntries(maker.sph, maker.size) |
| fw = ®FileWriter{w, maker.makeReg.size} |
| fw = &sparseFileWriter{fw, spd, 0} |
| wantStr = maker.makeReg.wantStr |
| default: |
| t.Fatalf("test %d, unknown make operation: %T", i, maker) |
| } |
| |
| for j, tf := range v.tests { |
| switch tf := tf.(type) { |
| case testWrite: |
| got, err := fw.Write([]byte(tf.str)) |
| if got != tf.wantCnt || err != tf.wantErr { |
| t.Errorf("test %d.%d, Write(%s):\ngot (%d, %v)\nwant (%d, %v)", i, j, tf.str, got, err, tf.wantCnt, tf.wantErr) |
| } |
| case testReadFrom: |
| f := &testFile{ops: tf.ops} |
| got, err := fw.ReadFrom(f) |
| if _, ok := err.(testError); ok { |
| t.Errorf("test %d.%d, ReadFrom(): %v", i, j, err) |
| } else if got != tf.wantCnt || err != tf.wantErr { |
| t.Errorf("test %d.%d, ReadFrom() = (%d, %v), want (%d, %v)", i, j, got, err, tf.wantCnt, tf.wantErr) |
| } |
| if len(f.ops) > 0 { |
| t.Errorf("test %d.%d, expected %d more operations", i, j, len(f.ops)) |
| } |
| case testRemaining: |
| if got := fw.LogicalRemaining(); got != tf.wantLCnt { |
| t.Errorf("test %d.%d, LogicalRemaining() = %d, want %d", i, j, got, tf.wantLCnt) |
| } |
| if got := fw.PhysicalRemaining(); got != tf.wantPCnt { |
| t.Errorf("test %d.%d, PhysicalRemaining() = %d, want %d", i, j, got, tf.wantPCnt) |
| } |
| default: |
| t.Fatalf("test %d.%d, unknown test operation: %T", i, j, tf) |
| } |
| } |
| |
| if got := bb.String(); got != wantStr { |
| t.Fatalf("test %d, String() = %q, want %q", i, got, wantStr) |
| } |
| } |
| } |
