mirror of
https://github.com/autc04/Retro68.git
synced 2024-09-08 20:55:01 +00:00
372 lines
7.3 KiB
Go
372 lines
7.3 KiB
Go
// Copyright 2011 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"
|
||
"fmt"
|
||
"io"
|
||
"io/ioutil"
|
||
"math/rand"
|
||
"os"
|
||
"strings"
|
||
"testing"
|
||
"time"
|
||
)
|
||
|
||
// TODO(adg): a more sophisticated test suite
|
||
|
||
type WriteTest struct {
|
||
Name string
|
||
Data []byte
|
||
Method uint16
|
||
Mode os.FileMode
|
||
}
|
||
|
||
var writeTests = []WriteTest{
|
||
{
|
||
Name: "foo",
|
||
Data: []byte("Rabbits, guinea pigs, gophers, marsupial rats, and quolls."),
|
||
Method: Store,
|
||
Mode: 0666,
|
||
},
|
||
{
|
||
Name: "bar",
|
||
Data: nil, // large data set in the test
|
||
Method: Deflate,
|
||
Mode: 0644,
|
||
},
|
||
{
|
||
Name: "setuid",
|
||
Data: []byte("setuid file"),
|
||
Method: Deflate,
|
||
Mode: 0755 | os.ModeSetuid,
|
||
},
|
||
{
|
||
Name: "setgid",
|
||
Data: []byte("setgid file"),
|
||
Method: Deflate,
|
||
Mode: 0755 | os.ModeSetgid,
|
||
},
|
||
{
|
||
Name: "symlink",
|
||
Data: []byte("../link/target"),
|
||
Method: Deflate,
|
||
Mode: 0755 | os.ModeSymlink,
|
||
},
|
||
}
|
||
|
||
func TestWriter(t *testing.T) {
|
||
largeData := make([]byte, 1<<17)
|
||
if _, err := rand.Read(largeData); err != nil {
|
||
t.Fatal("rand.Read failed:", err)
|
||
}
|
||
writeTests[1].Data = largeData
|
||
defer func() {
|
||
writeTests[1].Data = nil
|
||
}()
|
||
|
||
// write a zip file
|
||
buf := new(bytes.Buffer)
|
||
w := NewWriter(buf)
|
||
|
||
for _, wt := range writeTests {
|
||
testCreate(t, w, &wt)
|
||
}
|
||
|
||
if err := w.Close(); err != nil {
|
||
t.Fatal(err)
|
||
}
|
||
|
||
// read it back
|
||
r, err := NewReader(bytes.NewReader(buf.Bytes()), int64(buf.Len()))
|
||
if err != nil {
|
||
t.Fatal(err)
|
||
}
|
||
for i, wt := range writeTests {
|
||
testReadFile(t, r.File[i], &wt)
|
||
}
|
||
}
|
||
|
||
// TestWriterComment is test for EOCD comment read/write.
|
||
func TestWriterComment(t *testing.T) {
|
||
var tests = []struct {
|
||
comment string
|
||
ok bool
|
||
}{
|
||
{"hi, hello", true},
|
||
{"hi, こんにちわ", true},
|
||
{strings.Repeat("a", uint16max), true},
|
||
{strings.Repeat("a", uint16max+1), false},
|
||
}
|
||
|
||
for _, test := range tests {
|
||
// write a zip file
|
||
buf := new(bytes.Buffer)
|
||
w := NewWriter(buf)
|
||
if err := w.SetComment(test.comment); err != nil {
|
||
if test.ok {
|
||
t.Fatalf("SetComment: unexpected error %v", err)
|
||
}
|
||
continue
|
||
} else {
|
||
if !test.ok {
|
||
t.Fatalf("SetComment: unexpected success, want error")
|
||
}
|
||
}
|
||
|
||
if err := w.Close(); test.ok == (err != nil) {
|
||
t.Fatal(err)
|
||
}
|
||
|
||
if w.closed != test.ok {
|
||
t.Fatalf("Writer.closed: got %v, want %v", w.closed, test.ok)
|
||
}
|
||
|
||
// skip read test in failure cases
|
||
if !test.ok {
|
||
continue
|
||
}
|
||
|
||
// read it back
|
||
r, err := NewReader(bytes.NewReader(buf.Bytes()), int64(buf.Len()))
|
||
if err != nil {
|
||
t.Fatal(err)
|
||
}
|
||
if r.Comment != test.comment {
|
||
t.Fatalf("Reader.Comment: got %v, want %v", r.Comment, test.comment)
|
||
}
|
||
}
|
||
}
|
||
|
||
func TestWriterUTF8(t *testing.T) {
|
||
var utf8Tests = []struct {
|
||
name string
|
||
comment string
|
||
nonUTF8 bool
|
||
flags uint16
|
||
}{
|
||
{
|
||
name: "hi, hello",
|
||
comment: "in the world",
|
||
flags: 0x8,
|
||
},
|
||
{
|
||
name: "hi, こんにちわ",
|
||
comment: "in the world",
|
||
flags: 0x808,
|
||
},
|
||
{
|
||
name: "hi, こんにちわ",
|
||
comment: "in the world",
|
||
nonUTF8: true,
|
||
flags: 0x8,
|
||
},
|
||
{
|
||
name: "hi, hello",
|
||
comment: "in the 世界",
|
||
flags: 0x808,
|
||
},
|
||
{
|
||
name: "hi, こんにちわ",
|
||
comment: "in the 世界",
|
||
flags: 0x808,
|
||
},
|
||
{
|
||
name: "the replacement rune is <20>",
|
||
comment: "the replacement rune is <20>",
|
||
flags: 0x808,
|
||
},
|
||
{
|
||
// Name is Japanese encoded in Shift JIS.
|
||
name: "\x93\xfa\x96{\x8c\xea.txt",
|
||
comment: "in the 世界",
|
||
flags: 0x008, // UTF-8 must not be set
|
||
},
|
||
}
|
||
|
||
// write a zip file
|
||
buf := new(bytes.Buffer)
|
||
w := NewWriter(buf)
|
||
|
||
for _, test := range utf8Tests {
|
||
h := &FileHeader{
|
||
Name: test.name,
|
||
Comment: test.comment,
|
||
NonUTF8: test.nonUTF8,
|
||
Method: Deflate,
|
||
}
|
||
w, err := w.CreateHeader(h)
|
||
if err != nil {
|
||
t.Fatal(err)
|
||
}
|
||
w.Write([]byte{})
|
||
}
|
||
|
||
if err := w.Close(); err != nil {
|
||
t.Fatal(err)
|
||
}
|
||
|
||
// read it back
|
||
r, err := NewReader(bytes.NewReader(buf.Bytes()), int64(buf.Len()))
|
||
if err != nil {
|
||
t.Fatal(err)
|
||
}
|
||
for i, test := range utf8Tests {
|
||
flags := r.File[i].Flags
|
||
if flags != test.flags {
|
||
t.Errorf("CreateHeader(name=%q comment=%q nonUTF8=%v): flags=%#x, want %#x", test.name, test.comment, test.nonUTF8, flags, test.flags)
|
||
}
|
||
}
|
||
}
|
||
|
||
func TestWriterTime(t *testing.T) {
|
||
var buf bytes.Buffer
|
||
h := &FileHeader{
|
||
Name: "test.txt",
|
||
Modified: time.Date(2017, 10, 31, 21, 11, 57, 0, timeZone(-7*time.Hour)),
|
||
}
|
||
w := NewWriter(&buf)
|
||
if _, err := w.CreateHeader(h); err != nil {
|
||
t.Fatalf("unexpected CreateHeader error: %v", err)
|
||
}
|
||
if err := w.Close(); err != nil {
|
||
t.Fatalf("unexpected Close error: %v", err)
|
||
}
|
||
|
||
want, err := ioutil.ReadFile("testdata/time-go.zip")
|
||
if err != nil {
|
||
t.Fatalf("unexpected ReadFile error: %v", err)
|
||
}
|
||
if got := buf.Bytes(); !bytes.Equal(got, want) {
|
||
fmt.Printf("%x\n%x\n", got, want)
|
||
t.Error("contents of time-go.zip differ")
|
||
}
|
||
}
|
||
|
||
func TestWriterOffset(t *testing.T) {
|
||
largeData := make([]byte, 1<<17)
|
||
if _, err := rand.Read(largeData); err != nil {
|
||
t.Fatal("rand.Read failed:", err)
|
||
}
|
||
writeTests[1].Data = largeData
|
||
defer func() {
|
||
writeTests[1].Data = nil
|
||
}()
|
||
|
||
// write a zip file
|
||
buf := new(bytes.Buffer)
|
||
existingData := []byte{1, 2, 3, 1, 2, 3, 1, 2, 3}
|
||
n, _ := buf.Write(existingData)
|
||
w := NewWriter(buf)
|
||
w.SetOffset(int64(n))
|
||
|
||
for _, wt := range writeTests {
|
||
testCreate(t, w, &wt)
|
||
}
|
||
|
||
if err := w.Close(); err != nil {
|
||
t.Fatal(err)
|
||
}
|
||
|
||
// read it back
|
||
r, err := NewReader(bytes.NewReader(buf.Bytes()), int64(buf.Len()))
|
||
if err != nil {
|
||
t.Fatal(err)
|
||
}
|
||
for i, wt := range writeTests {
|
||
testReadFile(t, r.File[i], &wt)
|
||
}
|
||
}
|
||
|
||
func TestWriterFlush(t *testing.T) {
|
||
var buf bytes.Buffer
|
||
w := NewWriter(struct{ io.Writer }{&buf})
|
||
_, err := w.Create("foo")
|
||
if err != nil {
|
||
t.Fatal(err)
|
||
}
|
||
if buf.Len() > 0 {
|
||
t.Fatalf("Unexpected %d bytes already in buffer", buf.Len())
|
||
}
|
||
if err := w.Flush(); err != nil {
|
||
t.Fatal(err)
|
||
}
|
||
if buf.Len() == 0 {
|
||
t.Fatal("No bytes written after Flush")
|
||
}
|
||
}
|
||
|
||
func testCreate(t *testing.T, w *Writer, wt *WriteTest) {
|
||
header := &FileHeader{
|
||
Name: wt.Name,
|
||
Method: wt.Method,
|
||
}
|
||
if wt.Mode != 0 {
|
||
header.SetMode(wt.Mode)
|
||
}
|
||
f, err := w.CreateHeader(header)
|
||
if err != nil {
|
||
t.Fatal(err)
|
||
}
|
||
_, err = f.Write(wt.Data)
|
||
if err != nil {
|
||
t.Fatal(err)
|
||
}
|
||
}
|
||
|
||
func testReadFile(t *testing.T, f *File, wt *WriteTest) {
|
||
if f.Name != wt.Name {
|
||
t.Fatalf("File name: got %q, want %q", f.Name, wt.Name)
|
||
}
|
||
testFileMode(t, f, wt.Mode)
|
||
rc, err := f.Open()
|
||
if err != nil {
|
||
t.Fatal("opening:", err)
|
||
}
|
||
b, err := ioutil.ReadAll(rc)
|
||
if err != nil {
|
||
t.Fatal("reading:", err)
|
||
}
|
||
err = rc.Close()
|
||
if err != nil {
|
||
t.Fatal("closing:", err)
|
||
}
|
||
if !bytes.Equal(b, wt.Data) {
|
||
t.Errorf("File contents %q, want %q", b, wt.Data)
|
||
}
|
||
}
|
||
|
||
func BenchmarkCompressedZipGarbage(b *testing.B) {
|
||
bigBuf := bytes.Repeat([]byte("a"), 1<<20)
|
||
|
||
runOnce := func(buf *bytes.Buffer) {
|
||
buf.Reset()
|
||
zw := NewWriter(buf)
|
||
for j := 0; j < 3; j++ {
|
||
w, _ := zw.CreateHeader(&FileHeader{
|
||
Name: "foo",
|
||
Method: Deflate,
|
||
})
|
||
w.Write(bigBuf)
|
||
}
|
||
zw.Close()
|
||
}
|
||
|
||
b.ReportAllocs()
|
||
// Run once and then reset the timer.
|
||
// This effectively discards the very large initial flate setup cost,
|
||
// as well as the initialization of bigBuf.
|
||
runOnce(&bytes.Buffer{})
|
||
b.ResetTimer()
|
||
|
||
b.RunParallel(func(pb *testing.PB) {
|
||
var buf bytes.Buffer
|
||
for pb.Next() {
|
||
runOnce(&buf)
|
||
}
|
||
})
|
||
}
|