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// Copyright 2009 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 (
"archive/tar";
"bytes";
"fmt";
"io";
"os";
"testing";
)
func TestUntar(t *testing.T) {
f, err := os.Open("testdata/test.tar", os.O_RDONLY, 0444);
if err != nil {
t.Fatalf("Unexpected error: %v", err);
}
defer f.Close();
tr := NewReader(f);
// First file
hdr, err := tr.Next();
if err != nil || hdr == nil {
t.Fatalf("Didn't get first file: %v", err);
}
if hdr.Name != "small.txt" {
t.Errorf(`hdr.Name = %q, want "small.txt"`, hdr.Name);
}
if hdr.Mode != 0640 {
t.Errorf("hdr.Mode = %v, want 0640", hdr.Mode);
}
if hdr.Size != 5 {
t.Errorf("hdr.Size = %v, want 5", hdr.Size);
}
// Read the first four bytes; Next() should skip the last one.
buf := make([]byte, 4);
if n, err := io.FullRead(tr, buf); err != nil {
t.Fatalf("Unexpected error: %v", err);
}
if expected := io.StringBytes("Kilt"); !bytes.Equal(buf, expected) {
t.Errorf("Contents = %v, want %v", buf, expected);
}
// Second file
hdr, err = tr.Next();
if err != nil {
t.Fatalf("Didn't get second file: %v", err);
}
if hdr.Name != "small2.txt" {
t.Errorf(`hdr.Name = %q, want "small2.txt"`, hdr.Name);
}
if hdr.Mode != 0640 {
t.Errorf("hdr.Mode = %v, want 0640", hdr.Mode);
}
if hdr.Size != 11 {
t.Errorf("hdr.Size = %v, want 11", hdr.Size);
}
hdr, err = tr.Next();
if hdr != nil || err != nil {
t.Fatalf("Unexpected third file or error: %v", err);
}
}
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