mirror of https://github.com/vbatts/tar-split.git
435 lines
14 KiB
Go
435 lines
14 KiB
Go
// Copyright 2016 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 (
|
||
"math"
|
||
"strings"
|
||
"testing"
|
||
"time"
|
||
)
|
||
|
||
func TestFitsInBase256(t *testing.T) {
|
||
vectors := []struct {
|
||
in int64
|
||
width int
|
||
ok bool
|
||
}{
|
||
{+1, 8, true},
|
||
{0, 8, true},
|
||
{-1, 8, true},
|
||
{1 << 56, 8, false},
|
||
{(1 << 56) - 1, 8, true},
|
||
{-1 << 56, 8, true},
|
||
{(-1 << 56) - 1, 8, false},
|
||
{121654, 8, true},
|
||
{-9849849, 8, true},
|
||
{math.MaxInt64, 9, true},
|
||
{0, 9, true},
|
||
{math.MinInt64, 9, true},
|
||
{math.MaxInt64, 12, true},
|
||
{0, 12, true},
|
||
{math.MinInt64, 12, true},
|
||
}
|
||
|
||
for _, v := range vectors {
|
||
ok := fitsInBase256(v.width, v.in)
|
||
if ok != v.ok {
|
||
t.Errorf("fitsInBase256(%d, %d): got %v, want %v", v.in, v.width, ok, v.ok)
|
||
}
|
||
}
|
||
}
|
||
|
||
func TestParseNumeric(t *testing.T) {
|
||
vectors := []struct {
|
||
in string
|
||
want int64
|
||
ok bool
|
||
}{
|
||
// Test base-256 (binary) encoded values.
|
||
{"", 0, true},
|
||
{"\x80", 0, true},
|
||
{"\x80\x00", 0, true},
|
||
{"\x80\x00\x00", 0, true},
|
||
{"\xbf", (1 << 6) - 1, true},
|
||
{"\xbf\xff", (1 << 14) - 1, true},
|
||
{"\xbf\xff\xff", (1 << 22) - 1, true},
|
||
{"\xff", -1, true},
|
||
{"\xff\xff", -1, true},
|
||
{"\xff\xff\xff", -1, true},
|
||
{"\xc0", -1 * (1 << 6), true},
|
||
{"\xc0\x00", -1 * (1 << 14), true},
|
||
{"\xc0\x00\x00", -1 * (1 << 22), true},
|
||
{"\x87\x76\xa2\x22\xeb\x8a\x72\x61", 537795476381659745, true},
|
||
{"\x80\x00\x00\x00\x07\x76\xa2\x22\xeb\x8a\x72\x61", 537795476381659745, true},
|
||
{"\xf7\x76\xa2\x22\xeb\x8a\x72\x61", -615126028225187231, true},
|
||
{"\xff\xff\xff\xff\xf7\x76\xa2\x22\xeb\x8a\x72\x61", -615126028225187231, true},
|
||
{"\x80\x7f\xff\xff\xff\xff\xff\xff\xff", math.MaxInt64, true},
|
||
{"\x80\x80\x00\x00\x00\x00\x00\x00\x00", 0, false},
|
||
{"\xff\x80\x00\x00\x00\x00\x00\x00\x00", math.MinInt64, true},
|
||
{"\xff\x7f\xff\xff\xff\xff\xff\xff\xff", 0, false},
|
||
{"\xf5\xec\xd1\xc7\x7e\x5f\x26\x48\x81\x9f\x8f\x9b", 0, false},
|
||
|
||
// Test base-8 (octal) encoded values.
|
||
{"0000000\x00", 0, true},
|
||
{" \x0000000\x00", 0, true},
|
||
{" \x0000003\x00", 3, true},
|
||
{"00000000227\x00", 0227, true},
|
||
{"032033\x00 ", 032033, true},
|
||
{"320330\x00 ", 0320330, true},
|
||
{"0000660\x00 ", 0660, true},
|
||
{"\x00 0000660\x00 ", 0660, true},
|
||
{"0123456789abcdef", 0, false},
|
||
{"0123456789\x00abcdef", 0, false},
|
||
{"01234567\x0089abcdef", 342391, true},
|
||
{"0123\x7e\x5f\x264123", 0, false},
|
||
}
|
||
|
||
for _, v := range vectors {
|
||
var p parser
|
||
got := p.parseNumeric([]byte(v.in))
|
||
ok := (p.err == nil)
|
||
if ok != v.ok {
|
||
if v.ok {
|
||
t.Errorf("parseNumeric(%q): got parsing failure, want success", v.in)
|
||
} else {
|
||
t.Errorf("parseNumeric(%q): got parsing success, want failure", v.in)
|
||
}
|
||
}
|
||
if ok && got != v.want {
|
||
t.Errorf("parseNumeric(%q): got %d, want %d", v.in, got, v.want)
|
||
}
|
||
}
|
||
}
|
||
|
||
func TestFormatNumeric(t *testing.T) {
|
||
vectors := []struct {
|
||
in int64
|
||
want string
|
||
ok bool
|
||
}{
|
||
// Test base-8 (octal) encoded values.
|
||
{0, "0\x00", true},
|
||
{7, "7\x00", true},
|
||
{8, "\x80\x08", true},
|
||
{077, "77\x00", true},
|
||
{0100, "\x80\x00\x40", true},
|
||
{0, "0000000\x00", true},
|
||
{0123, "0000123\x00", true},
|
||
{07654321, "7654321\x00", true},
|
||
{07777777, "7777777\x00", true},
|
||
{010000000, "\x80\x00\x00\x00\x00\x20\x00\x00", true},
|
||
{0, "00000000000\x00", true},
|
||
{000001234567, "00001234567\x00", true},
|
||
{076543210321, "76543210321\x00", true},
|
||
{012345670123, "12345670123\x00", true},
|
||
{077777777777, "77777777777\x00", true},
|
||
{0100000000000, "\x80\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00", true},
|
||
{math.MaxInt64, "777777777777777777777\x00", true},
|
||
|
||
// Test base-256 (binary) encoded values.
|
||
{-1, "\xff", true},
|
||
{-1, "\xff\xff", true},
|
||
{-1, "\xff\xff\xff", true},
|
||
{(1 << 0), "0", false},
|
||
{(1 << 8) - 1, "\x80\xff", true},
|
||
{(1 << 8), "0\x00", false},
|
||
{(1 << 16) - 1, "\x80\xff\xff", true},
|
||
{(1 << 16), "00\x00", false},
|
||
{-1 * (1 << 0), "\xff", true},
|
||
{-1*(1<<0) - 1, "0", false},
|
||
{-1 * (1 << 8), "\xff\x00", true},
|
||
{-1*(1<<8) - 1, "0\x00", false},
|
||
{-1 * (1 << 16), "\xff\x00\x00", true},
|
||
{-1*(1<<16) - 1, "00\x00", false},
|
||
{537795476381659745, "0000000\x00", false},
|
||
{537795476381659745, "\x80\x00\x00\x00\x07\x76\xa2\x22\xeb\x8a\x72\x61", true},
|
||
{-615126028225187231, "0000000\x00", false},
|
||
{-615126028225187231, "\xff\xff\xff\xff\xf7\x76\xa2\x22\xeb\x8a\x72\x61", true},
|
||
{math.MaxInt64, "0000000\x00", false},
|
||
{math.MaxInt64, "\x80\x00\x00\x00\x7f\xff\xff\xff\xff\xff\xff\xff", true},
|
||
{math.MinInt64, "0000000\x00", false},
|
||
{math.MinInt64, "\xff\xff\xff\xff\x80\x00\x00\x00\x00\x00\x00\x00", true},
|
||
{math.MaxInt64, "\x80\x7f\xff\xff\xff\xff\xff\xff\xff", true},
|
||
{math.MinInt64, "\xff\x80\x00\x00\x00\x00\x00\x00\x00", true},
|
||
}
|
||
|
||
for _, v := range vectors {
|
||
var f formatter
|
||
got := make([]byte, len(v.want))
|
||
f.formatNumeric(got, v.in)
|
||
ok := (f.err == nil)
|
||
if ok != v.ok {
|
||
if v.ok {
|
||
t.Errorf("formatNumeric(%d): got formatting failure, want success", v.in)
|
||
} else {
|
||
t.Errorf("formatNumeric(%d): got formatting success, want failure", v.in)
|
||
}
|
||
}
|
||
if string(got) != v.want {
|
||
t.Errorf("formatNumeric(%d): got %q, want %q", v.in, got, v.want)
|
||
}
|
||
}
|
||
}
|
||
|
||
func TestFitsInOctal(t *testing.T) {
|
||
vectors := []struct {
|
||
input int64
|
||
width int
|
||
ok bool
|
||
}{
|
||
{-1, 1, false},
|
||
{-1, 2, false},
|
||
{-1, 3, false},
|
||
{0, 1, true},
|
||
{0 + 1, 1, false},
|
||
{0, 2, true},
|
||
{07, 2, true},
|
||
{07 + 1, 2, false},
|
||
{0, 4, true},
|
||
{0777, 4, true},
|
||
{0777 + 1, 4, false},
|
||
{0, 8, true},
|
||
{07777777, 8, true},
|
||
{07777777 + 1, 8, false},
|
||
{0, 12, true},
|
||
{077777777777, 12, true},
|
||
{077777777777 + 1, 12, false},
|
||
{math.MaxInt64, 22, true},
|
||
{012345670123, 12, true},
|
||
{01564164, 12, true},
|
||
{-012345670123, 12, false},
|
||
{-01564164, 12, false},
|
||
{-1564164, 30, false},
|
||
}
|
||
|
||
for _, v := range vectors {
|
||
ok := fitsInOctal(v.width, v.input)
|
||
if ok != v.ok {
|
||
t.Errorf("checkOctal(%d, %d): got %v, want %v", v.input, v.width, ok, v.ok)
|
||
}
|
||
}
|
||
}
|
||
|
||
func TestParsePAXTime(t *testing.T) {
|
||
vectors := []struct {
|
||
in string
|
||
want time.Time
|
||
ok bool
|
||
}{
|
||
{"1350244992.023960108", time.Unix(1350244992, 23960108), true},
|
||
{"1350244992.02396010", time.Unix(1350244992, 23960100), true},
|
||
{"1350244992.0239601089", time.Unix(1350244992, 23960108), true},
|
||
{"1350244992.3", time.Unix(1350244992, 300000000), true},
|
||
{"1350244992", time.Unix(1350244992, 0), true},
|
||
{"-1.000000001", time.Unix(-1, -1e0+0e0), true},
|
||
{"-1.000001", time.Unix(-1, -1e3+0e0), true},
|
||
{"-1.001000", time.Unix(-1, -1e6+0e0), true},
|
||
{"-1", time.Unix(-1, -0e0+0e0), true},
|
||
{"-1.999000", time.Unix(-1, -1e9+1e6), true},
|
||
{"-1.999999", time.Unix(-1, -1e9+1e3), true},
|
||
{"-1.999999999", time.Unix(-1, -1e9+1e0), true},
|
||
{"0.000000001", time.Unix(0, 1e0+0e0), true},
|
||
{"0.000001", time.Unix(0, 1e3+0e0), true},
|
||
{"0.001000", time.Unix(0, 1e6+0e0), true},
|
||
{"0", time.Unix(0, 0e0), true},
|
||
{"0.999000", time.Unix(0, 1e9-1e6), true},
|
||
{"0.999999", time.Unix(0, 1e9-1e3), true},
|
||
{"0.999999999", time.Unix(0, 1e9-1e0), true},
|
||
{"1.000000001", time.Unix(+1, +1e0-0e0), true},
|
||
{"1.000001", time.Unix(+1, +1e3-0e0), true},
|
||
{"1.001000", time.Unix(+1, +1e6-0e0), true},
|
||
{"1", time.Unix(+1, +0e0-0e0), true},
|
||
{"1.999000", time.Unix(+1, +1e9-1e6), true},
|
||
{"1.999999", time.Unix(+1, +1e9-1e3), true},
|
||
{"1.999999999", time.Unix(+1, +1e9-1e0), true},
|
||
{"-1350244992.023960108", time.Unix(-1350244992, -23960108), true},
|
||
{"-1350244992.02396010", time.Unix(-1350244992, -23960100), true},
|
||
{"-1350244992.0239601089", time.Unix(-1350244992, -23960108), true},
|
||
{"-1350244992.3", time.Unix(-1350244992, -300000000), true},
|
||
{"-1350244992", time.Unix(-1350244992, 0), true},
|
||
{"", time.Time{}, false},
|
||
{"0", time.Unix(0, 0), true},
|
||
{"1.", time.Unix(1, 0), true},
|
||
{"0.0", time.Unix(0, 0), true},
|
||
{".5", time.Time{}, false},
|
||
{"-1.3", time.Unix(-1, -3e8), true},
|
||
{"-1.0", time.Unix(-1, -0e0), true},
|
||
{"-0.0", time.Unix(-0, -0e0), true},
|
||
{"-0.1", time.Unix(-0, -1e8), true},
|
||
{"-0.01", time.Unix(-0, -1e7), true},
|
||
{"-0.99", time.Unix(-0, -99e7), true},
|
||
{"-0.98", time.Unix(-0, -98e7), true},
|
||
{"-1.1", time.Unix(-1, -1e8), true},
|
||
{"-1.01", time.Unix(-1, -1e7), true},
|
||
{"-2.99", time.Unix(-2, -99e7), true},
|
||
{"-5.98", time.Unix(-5, -98e7), true},
|
||
{"-", time.Time{}, false},
|
||
{"+", time.Time{}, false},
|
||
{"-1.-1", time.Time{}, false},
|
||
{"99999999999999999999999999999999999999999999999", time.Time{}, false},
|
||
{"0.123456789abcdef", time.Time{}, false},
|
||
{"foo", time.Time{}, false},
|
||
{"\x00", time.Time{}, false},
|
||
{"𝟵𝟴𝟳𝟲𝟱.𝟰𝟯𝟮𝟭𝟬", time.Time{}, false}, // Unicode numbers (U+1D7EC to U+1D7F5)
|
||
{"98765﹒43210", time.Time{}, false}, // Unicode period (U+FE52)
|
||
}
|
||
|
||
for _, v := range vectors {
|
||
ts, err := parsePAXTime(v.in)
|
||
ok := (err == nil)
|
||
if v.ok != ok {
|
||
if v.ok {
|
||
t.Errorf("parsePAXTime(%q): got parsing failure, want success", v.in)
|
||
} else {
|
||
t.Errorf("parsePAXTime(%q): got parsing success, want failure", v.in)
|
||
}
|
||
}
|
||
if ok && !ts.Equal(v.want) {
|
||
t.Errorf("parsePAXTime(%q): got (%ds %dns), want (%ds %dns)",
|
||
v.in, ts.Unix(), ts.Nanosecond(), v.want.Unix(), v.want.Nanosecond())
|
||
}
|
||
}
|
||
}
|
||
|
||
func TestFormatPAXTime(t *testing.T) {
|
||
vectors := []struct {
|
||
sec, nsec int64
|
||
want string
|
||
}{
|
||
{1350244992, 0, "1350244992"},
|
||
{1350244992, 300000000, "1350244992.3"},
|
||
{1350244992, 23960100, "1350244992.0239601"},
|
||
{1350244992, 23960108, "1350244992.023960108"},
|
||
{+1, +1E9 - 1E0, "1.999999999"},
|
||
{+1, +1E9 - 1E3, "1.999999"},
|
||
{+1, +1E9 - 1E6, "1.999"},
|
||
{+1, +0E0 - 0E0, "1"},
|
||
{+1, +1E6 - 0E0, "1.001"},
|
||
{+1, +1E3 - 0E0, "1.000001"},
|
||
{+1, +1E0 - 0E0, "1.000000001"},
|
||
{0, 1E9 - 1E0, "0.999999999"},
|
||
{0, 1E9 - 1E3, "0.999999"},
|
||
{0, 1E9 - 1E6, "0.999"},
|
||
{0, 0E0, "0"},
|
||
{0, 1E6 + 0E0, "0.001"},
|
||
{0, 1E3 + 0E0, "0.000001"},
|
||
{0, 1E0 + 0E0, "0.000000001"},
|
||
{-1, -1E9 + 1E0, "-1.999999999"},
|
||
{-1, -1E9 + 1E3, "-1.999999"},
|
||
{-1, -1E9 + 1E6, "-1.999"},
|
||
{-1, -0E0 + 0E0, "-1"},
|
||
{-1, -1E6 + 0E0, "-1.001"},
|
||
{-1, -1E3 + 0E0, "-1.000001"},
|
||
{-1, -1E0 + 0E0, "-1.000000001"},
|
||
{-1350244992, 0, "-1350244992"},
|
||
{-1350244992, -300000000, "-1350244992.3"},
|
||
{-1350244992, -23960100, "-1350244992.0239601"},
|
||
{-1350244992, -23960108, "-1350244992.023960108"},
|
||
}
|
||
|
||
for _, v := range vectors {
|
||
got := formatPAXTime(time.Unix(v.sec, v.nsec))
|
||
if got != v.want {
|
||
t.Errorf("formatPAXTime(%ds, %dns): got %q, want %q",
|
||
v.sec, v.nsec, got, v.want)
|
||
}
|
||
}
|
||
}
|
||
|
||
func TestParsePAXRecord(t *testing.T) {
|
||
medName := strings.Repeat("CD", 50)
|
||
longName := strings.Repeat("AB", 100)
|
||
|
||
vectors := []struct {
|
||
in string
|
||
wantRes string
|
||
wantKey string
|
||
wantVal string
|
||
ok bool
|
||
}{
|
||
{"6 k=v\n\n", "\n", "k", "v", true},
|
||
{"19 path=/etc/hosts\n", "", "path", "/etc/hosts", true},
|
||
{"210 path=" + longName + "\nabc", "abc", "path", longName, true},
|
||
{"110 path=" + medName + "\n", "", "path", medName, true},
|
||
{"9 foo=ba\n", "", "foo", "ba", true},
|
||
{"11 foo=bar\n\x00", "\x00", "foo", "bar", true},
|
||
{"18 foo=b=\nar=\n==\x00\n", "", "foo", "b=\nar=\n==\x00", true},
|
||
{"27 foo=hello9 foo=ba\nworld\n", "", "foo", "hello9 foo=ba\nworld", true},
|
||
{"27 ☺☻☹=日a本b語ç\nmeow mix", "meow mix", "☺☻☹", "日a本b語ç", true},
|
||
{"17 \x00hello=\x00world\n", "17 \x00hello=\x00world\n", "", "", false},
|
||
{"1 k=1\n", "1 k=1\n", "", "", false},
|
||
{"6 k~1\n", "6 k~1\n", "", "", false},
|
||
{"6_k=1\n", "6_k=1\n", "", "", false},
|
||
{"6 k=1 ", "6 k=1 ", "", "", false},
|
||
{"632 k=1\n", "632 k=1\n", "", "", false},
|
||
{"16 longkeyname=hahaha\n", "16 longkeyname=hahaha\n", "", "", false},
|
||
{"3 somelongkey=\n", "3 somelongkey=\n", "", "", false},
|
||
{"50 tooshort=\n", "50 tooshort=\n", "", "", false},
|
||
}
|
||
|
||
for _, v := range vectors {
|
||
key, val, res, err := parsePAXRecord(v.in)
|
||
ok := (err == nil)
|
||
if ok != v.ok {
|
||
if v.ok {
|
||
t.Errorf("parsePAXRecord(%q): got parsing failure, want success", v.in)
|
||
} else {
|
||
t.Errorf("parsePAXRecord(%q): got parsing success, want failure", v.in)
|
||
}
|
||
}
|
||
if v.ok && (key != v.wantKey || val != v.wantVal) {
|
||
t.Errorf("parsePAXRecord(%q): got (%q: %q), want (%q: %q)",
|
||
v.in, key, val, v.wantKey, v.wantVal)
|
||
}
|
||
if res != v.wantRes {
|
||
t.Errorf("parsePAXRecord(%q): got residual %q, want residual %q",
|
||
v.in, res, v.wantRes)
|
||
}
|
||
}
|
||
}
|
||
|
||
func TestFormatPAXRecord(t *testing.T) {
|
||
medName := strings.Repeat("CD", 50)
|
||
longName := strings.Repeat("AB", 100)
|
||
|
||
vectors := []struct {
|
||
inKey string
|
||
inVal string
|
||
want string
|
||
ok bool
|
||
}{
|
||
{"k", "v", "6 k=v\n", true},
|
||
{"path", "/etc/hosts", "19 path=/etc/hosts\n", true},
|
||
{"path", longName, "210 path=" + longName + "\n", true},
|
||
{"path", medName, "110 path=" + medName + "\n", true},
|
||
{"foo", "ba", "9 foo=ba\n", true},
|
||
{"foo", "bar", "11 foo=bar\n", true},
|
||
{"foo", "b=\nar=\n==\x00", "18 foo=b=\nar=\n==\x00\n", true},
|
||
{"foo", "hello9 foo=ba\nworld", "27 foo=hello9 foo=ba\nworld\n", true},
|
||
{"☺☻☹", "日a本b語ç", "27 ☺☻☹=日a本b語ç\n", true},
|
||
{"xhello", "\x00world", "17 xhello=\x00world\n", true},
|
||
{"path", "null\x00", "", false},
|
||
{"null\x00", "value", "", false},
|
||
{paxSchilyXattr + "key", "null\x00", "26 SCHILY.xattr.key=null\x00\n", true},
|
||
}
|
||
|
||
for _, v := range vectors {
|
||
got, err := formatPAXRecord(v.inKey, v.inVal)
|
||
ok := (err == nil)
|
||
if ok != v.ok {
|
||
if v.ok {
|
||
t.Errorf("formatPAXRecord(%q, %q): got format failure, want success", v.inKey, v.inVal)
|
||
} else {
|
||
t.Errorf("formatPAXRecord(%q, %q): got format success, want failure", v.inKey, v.inVal)
|
||
}
|
||
}
|
||
if got != v.want {
|
||
t.Errorf("formatPAXRecord(%q, %q): got %q, want %q",
|
||
v.inKey, v.inVal, got, v.want)
|
||
}
|
||
}
|
||
}
|