mirror of
https://github.com/golang/go
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7ec76e25b6
Fixes #4393. R=golang-dev, bradfitz CC=golang-dev https://golang.org/cl/6854058
258 lines
6.2 KiB
Go
258 lines
6.2 KiB
Go
// Copyright 2011 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Tests that involve both reading and writing.
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package zip
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import (
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"bytes"
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"fmt"
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"io"
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"io/ioutil"
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"strings"
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"testing"
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"time"
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)
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func TestOver65kFiles(t *testing.T) {
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if testing.Short() {
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t.Logf("slow test; skipping")
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return
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}
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buf := new(bytes.Buffer)
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w := NewWriter(buf)
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const nFiles = (1 << 16) + 42
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for i := 0; i < nFiles; i++ {
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_, err := w.Create(fmt.Sprintf("%d.dat", i))
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if err != nil {
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t.Fatalf("creating file %d: %v", i, err)
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}
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}
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if err := w.Close(); err != nil {
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t.Fatalf("Writer.Close: %v", err)
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}
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s := buf.String()
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zr, err := NewReader(strings.NewReader(s), int64(len(s)))
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if err != nil {
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t.Fatalf("NewReader: %v", err)
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}
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if got := len(zr.File); got != nFiles {
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t.Fatalf("File contains %d files, want %d", got, nFiles)
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}
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for i := 0; i < nFiles; i++ {
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want := fmt.Sprintf("%d.dat", i)
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if zr.File[i].Name != want {
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t.Fatalf("File(%d) = %q, want %q", i, zr.File[i].Name, want)
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}
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}
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}
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func TestModTime(t *testing.T) {
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var testTime = time.Date(2009, time.November, 10, 23, 45, 58, 0, time.UTC)
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fh := new(FileHeader)
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fh.SetModTime(testTime)
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outTime := fh.ModTime()
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if !outTime.Equal(testTime) {
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t.Errorf("times don't match: got %s, want %s", outTime, testTime)
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}
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}
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func testHeaderRoundTrip(fh *FileHeader, wantUncompressedSize uint32, wantUncompressedSize64 uint64, t *testing.T) {
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fi := fh.FileInfo()
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fh2, err := FileInfoHeader(fi)
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if err != nil {
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t.Fatal(err)
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}
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if got, want := fh2.Name, fh.Name; got != want {
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t.Errorf("Name: got %s, want %s\n", got, want)
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}
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if got, want := fh2.UncompressedSize, wantUncompressedSize; got != want {
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t.Errorf("UncompressedSize: got %d, want %d\n", got, want)
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}
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if got, want := fh2.UncompressedSize64, wantUncompressedSize64; got != want {
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t.Errorf("UncompressedSize64: got %d, want %d\n", got, want)
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}
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if got, want := fh2.ModifiedTime, fh.ModifiedTime; got != want {
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t.Errorf("ModifiedTime: got %d, want %d\n", got, want)
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}
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if got, want := fh2.ModifiedDate, fh.ModifiedDate; got != want {
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t.Errorf("ModifiedDate: got %d, want %d\n", got, want)
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}
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if sysfh, ok := fi.Sys().(*FileHeader); !ok && sysfh != fh {
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t.Errorf("Sys didn't return original *FileHeader")
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}
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}
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func TestFileHeaderRoundTrip(t *testing.T) {
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fh := &FileHeader{
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Name: "foo.txt",
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UncompressedSize: 987654321,
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ModifiedTime: 1234,
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ModifiedDate: 5678,
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}
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testHeaderRoundTrip(fh, fh.UncompressedSize, uint64(fh.UncompressedSize), t)
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}
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func TestFileHeaderRoundTrip64(t *testing.T) {
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fh := &FileHeader{
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Name: "foo.txt",
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UncompressedSize64: 9876543210,
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ModifiedTime: 1234,
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ModifiedDate: 5678,
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}
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testHeaderRoundTrip(fh, uint32max, fh.UncompressedSize64, t)
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}
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func TestZip64(t *testing.T) {
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if testing.Short() {
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t.Logf("slow test; skipping")
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return
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}
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// write 2^32 bytes plus "END\n" to a zip file
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buf := new(bytes.Buffer)
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w := NewWriter(buf)
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f, err := w.Create("huge.txt")
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if err != nil {
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t.Fatal(err)
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}
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chunk := make([]byte, 1024)
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for i := range chunk {
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chunk[i] = '.'
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}
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chunk[len(chunk)-1] = '\n'
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end := []byte("END\n")
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for i := 0; i < (1<<32)/1024; i++ {
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_, err := f.Write(chunk)
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if err != nil {
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t.Fatal("write chunk:", err)
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}
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}
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_, err = f.Write(end)
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if err != nil {
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t.Fatal("write end:", err)
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}
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if err := w.Close(); err != nil {
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t.Fatal(err)
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}
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// read back zip file and check that we get to the end of it
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r, err := NewReader(bytes.NewReader(buf.Bytes()), int64(buf.Len()))
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if err != nil {
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t.Fatal("reader:", err)
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}
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f0 := r.File[0]
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rc, err := f0.Open()
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if err != nil {
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t.Fatal("opening:", err)
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}
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for i := 0; i < (1<<32)/1024; i++ {
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_, err := io.ReadFull(rc, chunk)
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if err != nil {
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t.Fatal("read:", err)
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}
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}
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gotEnd, err := ioutil.ReadAll(rc)
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if err != nil {
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t.Fatal("read end:", err)
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}
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if !bytes.Equal(gotEnd, end) {
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t.Errorf("End of zip64 archive %q, want %q", gotEnd, end)
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}
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err = rc.Close()
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if err != nil {
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t.Fatal("closing:", err)
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}
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if got, want := f0.UncompressedSize, uint32(uint32max); got != want {
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t.Errorf("UncompressedSize %d, want %d", got, want)
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}
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if got, want := f0.UncompressedSize64, (1<<32)+uint64(len(end)); got != want {
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t.Errorf("UncompressedSize64 %d, want %d", got, want)
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}
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}
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func testInvalidHeader(h *FileHeader, t *testing.T) {
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var buf bytes.Buffer
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z := NewWriter(&buf)
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f, err := z.CreateHeader(h)
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if err != nil {
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t.Fatalf("error creating header: %v", err)
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}
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if _, err := f.Write([]byte("hi")); err != nil {
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t.Fatalf("error writing content: %v", err)
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}
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if err := z.Close(); err != nil {
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t.Fatalf("error closing zip writer: %v", err)
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}
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b := buf.Bytes()
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if _, err = NewReader(bytes.NewReader(b), int64(len(b))); err != ErrFormat {
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t.Fatalf("got %v, expected ErrFormat", err)
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}
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}
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func testValidHeader(h *FileHeader, t *testing.T) {
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var buf bytes.Buffer
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z := NewWriter(&buf)
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f, err := z.CreateHeader(h)
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if err != nil {
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t.Fatalf("error creating header: %v", err)
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}
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if _, err := f.Write([]byte("hi")); err != nil {
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t.Fatalf("error writing content: %v", err)
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}
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if err := z.Close(); err != nil {
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t.Fatalf("error closing zip writer: %v", err)
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}
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b := buf.Bytes()
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if _, err = NewReader(bytes.NewReader(b), int64(len(b))); err != nil {
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t.Fatalf("got %v, expected nil", err)
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}
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}
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// Issue 4302.
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func TestHeaderInvalidTagAndSize(t *testing.T) {
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const timeFormat = "20060102T150405.000.txt"
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ts := time.Now()
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filename := ts.Format(timeFormat)
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h := FileHeader{
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Name: filename,
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Method: Deflate,
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Extra: []byte(ts.Format(time.RFC3339Nano)), // missing tag and len
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}
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h.SetModTime(ts)
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testInvalidHeader(&h, t)
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}
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func TestHeaderTooShort(t *testing.T) {
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h := FileHeader{
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Name: "foo.txt",
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Method: Deflate,
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Extra: []byte{zip64ExtraId}, // missing size
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}
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testInvalidHeader(&h, t)
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}
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// Issue 4393. It is valid to have an extra data header
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// which contains no body.
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func TestZeroLengthHeader(t *testing.T) {
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h := FileHeader{
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Name: "extadata.txt",
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Method: Deflate,
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Extra: []byte{
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85, 84, 5, 0, 3, 154, 144, 195, 77, // tag 21589 size 5
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85, 120, 0, 0, // tag 30805 size 0
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},
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}
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testValidHeader(&h, t)
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}
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