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// 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.
// Tests that involve both reading and writing.
package zip
import (
"bytes"
"fmt"
"io"
"io/ioutil"
"strings"
"testing"
"time"
)
func TestOver65kFiles(t *testing.T) {
if testing.Short() {
t.Logf("slow test; skipping")
return
}
buf := new(bytes.Buffer)
w := NewWriter(buf)
const nFiles = (1 << 16) + 42
for i := 0; i < nFiles; i++ {
_, err := w.Create(fmt.Sprintf("%d.dat", i))
if err != nil {
t.Fatalf("creating file %d: %v", i, err)
}
}
if err := w.Close(); err != nil {
t.Fatalf("Writer.Close: %v", err)
}
s := buf.String()
zr, err := NewReader(strings.NewReader(s), int64(len(s)))
if err != nil {
t.Fatalf("NewReader: %v", err)
}
if got := len(zr.File); got != nFiles {
t.Fatalf("File contains %d files, want %d", got, nFiles)
}
for i := 0; i < nFiles; i++ {
want := fmt.Sprintf("%d.dat", i)
if zr.File[i].Name != want {
t.Fatalf("File(%d) = %q, want %q", i, zr.File[i].Name, want)
}
}
}
func TestModTime(t *testing.T) {
var testTime = time.Date(2009, time.November, 10, 23, 45, 58, 0, time.UTC)
fh := new(FileHeader)
fh.SetModTime(testTime)
outTime := fh.ModTime()
if !outTime.Equal(testTime) {
t.Errorf("times don't match: got %s, want %s", outTime, testTime)
}
}
func testHeaderRoundTrip(fh *FileHeader, wantUncompressedSize uint32, wantUncompressedSize64 uint64, t *testing.T) {
fi := fh.FileInfo()
fh2, err := FileInfoHeader(fi)
if err != nil {
t.Fatal(err)
}
if got, want := fh2.Name, fh.Name; got != want {
t.Errorf("Name: got %s, want %s\n", got, want)
}
if got, want := fh2.UncompressedSize, wantUncompressedSize; got != want {
t.Errorf("UncompressedSize: got %d, want %d\n", got, want)
}
if got, want := fh2.UncompressedSize64, wantUncompressedSize64; got != want {
t.Errorf("UncompressedSize64: got %d, want %d\n", got, want)
}
if got, want := fh2.ModifiedTime, fh.ModifiedTime; got != want {
t.Errorf("ModifiedTime: got %d, want %d\n", got, want)
}
if got, want := fh2.ModifiedDate, fh.ModifiedDate; got != want {
t.Errorf("ModifiedDate: got %d, want %d\n", got, want)
}
if sysfh, ok := fi.Sys().(*FileHeader); !ok && sysfh != fh {
t.Errorf("Sys didn't return original *FileHeader")
}
}
func TestFileHeaderRoundTrip(t *testing.T) {
fh := &FileHeader{
Name: "foo.txt",
UncompressedSize: 987654321,
ModifiedTime: 1234,
ModifiedDate: 5678,
}
testHeaderRoundTrip(fh, fh.UncompressedSize, uint64(fh.UncompressedSize), t)
}
func TestFileHeaderRoundTrip64(t *testing.T) {
fh := &FileHeader{
Name: "foo.txt",
UncompressedSize64: 9876543210,
ModifiedTime: 1234,
ModifiedDate: 5678,
}
testHeaderRoundTrip(fh, uint32max, fh.UncompressedSize64, t)
}
func TestZip64(t *testing.T) {
if testing.Short() {
t.Logf("slow test; skipping")
return
}
// write 2^32 bytes plus "END\n" to a zip file
buf := new(bytes.Buffer)
w := NewWriter(buf)
f, err := w.Create("huge.txt")
if err != nil {
t.Fatal(err)
}
chunk := make([]byte, 1024)
for i := range chunk {
chunk[i] = '.'
}
chunk[len(chunk)-1] = '\n'
end := []byte("END\n")
for i := 0; i < (1<<32)/1024; i++ {
_, err := f.Write(chunk)
if err != nil {
t.Fatal("write chunk:", err)
}
}
_, err = f.Write(end)
if err != nil {
t.Fatal("write end:", err)
}
if err := w.Close(); err != nil {
t.Fatal(err)
}
// read back zip file and check that we get to the end of it
r, err := NewReader(bytes.NewReader(buf.Bytes()), int64(buf.Len()))
if err != nil {
t.Fatal("reader:", err)
}
f0 := r.File[0]
rc, err := f0.Open()
if err != nil {
t.Fatal("opening:", err)
}
for i := 0; i < (1<<32)/1024; i++ {
_, err := io.ReadFull(rc, chunk)
if err != nil {
t.Fatal("read:", err)
}
}
gotEnd, err := ioutil.ReadAll(rc)
if err != nil {
t.Fatal("read end:", err)
}
if !bytes.Equal(gotEnd, end) {
t.Errorf("End of zip64 archive %q, want %q", gotEnd, end)
}
err = rc.Close()
if err != nil {
t.Fatal("closing:", err)
}
if got, want := f0.UncompressedSize, uint32(uint32max); got != want {
t.Errorf("UncompressedSize %d, want %d", got, want)
}
if got, want := f0.UncompressedSize64, (1<<32)+uint64(len(end)); got != want {
t.Errorf("UncompressedSize64 %d, want %d", got, want)
}
}
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