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// Copyright (c) 2011 Mikkel Krautz
// The use of this source code is goverened by a BSD-style
// license that can be found in the LICENSE-file.
package ar
// This file tests that our reader can read files written by our writer.
import (
"bytes"
"io"
"testing"
)
type archiveTest struct {
hdr *Header
data []byte
}
// Long filename test
var longFnArchive []archiveTest = []archiveTest{
{
&Header{
Name: "ReadWriteCompatFileName",
Mode: 0755,
Mtime: 0,
Uid: 1000,
Gid: 1000,
Size: 6,
},
[]byte{0xf0, 0x00, 0xca, 0xfe, 0xba, 0xbe},
},
}
// Short filename test (we don't special case short filenames,
// we always write out long-style filenames, but let's test it
// just to make sure)
var shortFnArchive []archiveTest = []archiveTest{
{
&Header{
Name: "a",
Mode: 0755,
Mtime: 0,
Uid: 1000,
Gid: 1000,
Size: 2,
},
[]byte{'a', '\n'},
},
}
func headerCmp(hdr1 *Header, hdr2 *Header) bool {
if hdr1 == nil || hdr2 == nil {
return false
}
if hdr1.Name != hdr2.Name {
return false
}
if hdr1.Mode != hdr2.Mode {
return false
}
if hdr1.Mtime != hdr2.Mtime {
return false
}
if hdr1.Uid != hdr2.Uid {
return false
}
if hdr1.Gid != hdr2.Gid {
return false
}
if hdr1.Size != hdr2.Size {
return false
}
return true
}
func testRwCompat(t *testing.T, testArchive []archiveTest) {
buf := new(bytes.Buffer)
w := NewWriter(buf)
for _, testEntry := range testArchive {
err := w.WriteHeader(testEntry.hdr)
if err != nil {
t.Fatal(err)
}
_, err = w.Write(testEntry.data)
if err != nil {
t.Fatal(err)
}
}
err := w.Close()
if err != nil {
t.Fatal(err)
}
rbuf := bytes.NewBuffer(buf.Bytes())
r := NewReader(rbuf)
for _, testEntry := range testArchive {
hdr, err := r.Next()
if err != nil {
t.Fatal(err)
}
if !headerCmp(hdr, testEntry.hdr) {
t.Fatalf("header mismatch:\nread = %v\norig = %v", hdr, testEntry.hdr)
}
fbuf := make([]byte, hdr.Size)
_, err = io.ReadFull(r, fbuf)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(fbuf, testEntry.data) {
t.Fatalf("data mismatch\nread = %v\norig = %v", fbuf, testEntry.data)
}
}
}
func TestReadWriteCompatLongFn(t *testing.T) {
testRwCompat(t, longFnArchive)
}
func TestReadWriteCompatShortFn(t *testing.T) {
testRwCompat(t, shortFnArchive)
}
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