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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 linebreaks
import (
"bytes"
"fmt"
"io"
"os"
"reflect"
"strings"
"testing"
)
type writerTestEntry struct {
header *Header
contents string
}
type writerTest struct {
file string // filename of expected output
entries []*writerTestEntry
}
var writerTests = []*writerTest{
&writerTest{
file: "testdata/writer.tar",
entries: []*writerTestEntry{
&writerTestEntry{
header: &Header{
Name: "small.txt",
Mode: 0640,
Uid: 73025,
Gid: 5000,
Size: 5,
Mtime: 1246508266,
Typeflag: '0',
Uname: "dsymonds",
Gname: "eng",
},
contents: "Kilts",
},
&writerTestEntry{
header: &Header{
Name: "small2.txt",
Mode: 0640,
Uid: 73025,
Gid: 5000,
Size: 11,
Mtime: 1245217492,
Typeflag: '0',
Uname: "dsymonds",
Gname: "eng",
},
contents: "Google.com\n",
},
},
},
// The truncated test file was produced using these commands:
// dd if=/dev/zero bs=1048576 count=16384 > /tmp/16gig.txt
// tar -b 1 -c -f- /tmp/16gig.txt | dd bs=512 count=8 > writer-big.tar
&writerTest{
file: "testdata/writer-big.tar",
entries: []*writerTestEntry{
&writerTestEntry{
header: &Header{
Name: "tmp/16gig.txt",
Mode: 0640,
Uid: 73025,
Gid: 5000,
Size: 16 << 30,
Mtime: 1254699560,
Typeflag: '0',
Uname: "dsymonds",
Gname: "eng",
},
// no contents
},
},
},
}
type untarTest struct {
file string
headers []*Header
}
var untarTests = []*untarTest{
&untarTest{
file: "testdata/gnu.tar",
headers: []*Header{
&Header{
Name: "small.txt",
Mode: 0640,
Uid: 73025,
Gid: 5000,
Size: 5,
Mtime: 1244428340,
Typeflag: '0',
Uname: "dsymonds",
Gname: "eng",
},
&Header{
Name: "small2.txt",
Mode: 0640,
Uid: 73025,
Gid: 5000,
Size: 11,
Mtime: 1244436044,
Typeflag: '0',
Uname: "dsymonds",
Gname: "eng",
},
},
},
&untarTest{
file: "testdata/star.tar",
headers: []*Header{
&Header{
Name: "small.txt",
Mode: 0640,
Uid: 73025,
Gid: 5000,
Size: 5,
Mtime: 1244592783,
Typeflag: '0',
Uname: "dsymonds",
Gname: "eng",
Atime: 1244592783,
Ctime: 1244592783,
},
&Header{
Name: "small2.txt",
Mode: 0640,
Uid: 73025,
Gid: 5000,
Size: 11,
Mtime: 1244592783,
Typeflag: '0',
Uname: "dsymonds",
Gname: "eng",
Atime: 1244592783,
Ctime: 1244592783,
},
},
},
&untarTest{
file: "testdata/v7.tar",
headers: []*Header{
&Header{
Name: "small.txt",
Mode: 0444,
Uid: 73025,
Gid: 5000,
Size: 5,
Mtime: 1244593104,
Typeflag: '\x00',
},
&Header{
Name: "small2.txt",
Mode: 0444,
Uid: 73025,
Gid: 5000,
Size: 11,
Mtime: 1244593104,
Typeflag: '\x00',
},
},
},
}
var facts = map[int]string{
0: "1",
1: "1",
2: "2",
10: "3628800",
20: "2432902008176640000",
100: "933262154439441526816992388562667004907159682643816214685929" +
"638952175999932299156089414639761565182862536979208272237582" +
"51185210916864000000000000000000000000",
}
func usage() {
fmt.Fprintf(os.Stderr,
// TODO(gri): the 2nd string of this string list should not be indented
"usage: godoc package [name ...]\n"+
" godoc -http=:6060\n")
flag.PrintDefaults()
os.Exit(2)
}
func TestReader(t *testing.T) {
testLoop:
for i, test := range untarTests {
f, err := os.Open(test.file, os.O_RDONLY, 0444)
if err != nil {
t.Errorf("test %d: Unexpected error: %v", i, err)
continue
}
tr := NewReader(f)
for j, header := range test.headers {
hdr, err := tr.Next()
if err != nil || hdr == nil {
t.Errorf("test %d, entry %d: Didn't get entry: %v", i, j, err)
f.Close()
continue testLoop
}
if !reflect.DeepEqual(hdr, header) {
t.Errorf("test %d, entry %d: Incorrect header:\nhave %+v\nwant %+v",
i, j, *hdr, *header)
}
}
hdr, err := tr.Next()
if hdr != nil || err != nil {
t.Errorf("test %d: Unexpected entry or error: hdr=%v err=%v", i, err)
}
f.Close()
}
}
// Respect line breaks in function calls.
func _() {
f(x)
f(x,
x)
f(x,
x,
)
f(
x,
x)
f(
x,
x,
)
}
// Respect line breaks in function declarations.
func _(x T) {}
func _(x T,
y T) {
}
func _(x T,
y T,
) {
}
func _(
x T,
y T) {
}
func _(
x T,
y T,
) {
}
// Example from issue #2597.
func ManageStatus0(
in <-chan *Status,
req <-chan Request,
stat chan<- *TargetInfo,
TargetHistorySize int) {
}
func ManageStatus1(
in <-chan *Status,
req <-chan Request,
stat chan<- *TargetInfo,
TargetHistorySize int,
) {
}
// Example from issue #9064.
func (y *y) xerrors() error {
_ = "xerror.test" //TODO-
_ = []byte(`
foo bar foo bar foo bar
`) //TODO-
}
func _() {
_ = "abc" // foo
_ = `abc_0123456789_` // foo
}
func _() {
_ = "abc" // foo
_ = `abc
0123456789
` // foo
}
// There should be exactly one linebreak after this comment.