github.com/u-root/u-root@v7.0.1-0.20200915234505-ad7babab0a8e+incompatible/pkg/cpio/newc_test.go (about)

     1  // Copyright 2012 the u-root Authors. All rights reserved
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package cpio
     6  
     7  import (
     8  	"bytes"
     9  	"io"
    10  	"io/ioutil"
    11  	"reflect"
    12  	"syscall"
    13  	"testing"
    14  
    15  	"github.com/u-root/u-root/pkg/uio"
    16  )
    17  
    18  /*
    19  TODO(#935): This test should really compare against []Records, not the string
    20  formatted []Records.
    21  
    22  func TestSimple(t *testing.T) {
    23  	r := Newc.Reader(bytes.NewReader(testCPIO))
    24  	files, err := ReadAllRecords(r)
    25  	if err != nil {
    26  		t.Fatal(err)
    27  	}
    28  
    29  	for i, f := range files {
    30  		if f.String() != testResult[i] {
    31  			t.Errorf("Value %d: got \n%s, want \n%s", i, f.String(), testResult[i])
    32  		}
    33  		t.Logf("Value %d: got \n%s, want \n%s", i, f.String(), testResult[i])
    34  	}
    35  }
    36  */
    37  
    38  func TestWriteRead(t *testing.T) {
    39  	contents := []byte("LANAAAAAAAAAA")
    40  	rec := StaticRecord(contents, Info{
    41  		Ino:      1,
    42  		Mode:     syscall.S_IFREG | 2,
    43  		UID:      3,
    44  		GID:      4,
    45  		NLink:    5,
    46  		MTime:    6,
    47  		FileSize: 7,
    48  		Major:    8,
    49  		Minor:    9,
    50  		Rmajor:   10,
    51  		Rminor:   11,
    52  		Name:     "foobar",
    53  	})
    54  
    55  	buf := &bytes.Buffer{}
    56  	w := Newc.Writer(buf)
    57  	if err := w.WriteRecord(rec); err != nil {
    58  		t.Errorf("Could not write record %q: %v", rec.Name, err)
    59  	}
    60  
    61  	if err := WriteTrailer(w); err != nil {
    62  		t.Errorf("Could not write trailer: %v", err)
    63  	}
    64  
    65  	r := Newc.Reader(bytes.NewReader(buf.Bytes()))
    66  	rec2, err := r.ReadRecord()
    67  	if err != nil {
    68  		t.Errorf("Could not read record: %v", err)
    69  	}
    70  
    71  	if rec2.Info != rec.Info {
    72  		t.Errorf("Records not equal:\n%#v\n%#v", rec.Info, rec2.Info)
    73  	}
    74  
    75  	contents2, err := ioutil.ReadAll(uio.Reader(rec2))
    76  	if err != nil {
    77  		t.Errorf("Could not read %q: %v", rec2.Name, err)
    78  	}
    79  
    80  	if !bytes.Equal(contents2, contents) {
    81  		t.Errorf("Read(%q) = %s, want %s", rec2.Name, string(contents2), contents)
    82  	}
    83  }
    84  
    85  func TestReadWrite(t *testing.T) {
    86  	r := Newc.Reader(bytes.NewReader(testCPIO))
    87  	files, err := ReadAllRecords(r)
    88  	if err != nil {
    89  		t.Fatalf("Reading testCPIO reader: %v", err)
    90  	}
    91  
    92  	buf := &bytes.Buffer{}
    93  	w := Newc.Writer(buf)
    94  	if err := WriteRecords(w, files); err != nil {
    95  		t.Fatalf("WriteRecords: %v", err)
    96  	}
    97  
    98  	if err := WriteTrailer(w); err != nil {
    99  		t.Fatalf("WriteTrailer: %v", err)
   100  	}
   101  
   102  	r = Newc.Reader(bytes.NewReader(testCPIO))
   103  	files, err = ReadAllRecords(r)
   104  	if err != nil {
   105  		t.Fatalf("Reading testCPIO reader: %v", err)
   106  	}
   107  
   108  	r = Newc.Reader(bytes.NewReader(buf.Bytes()))
   109  	filesReadBack, err := ReadAllRecords(r)
   110  	if err != nil {
   111  		t.Fatalf("TestReadWrite: reading generated data: %v", err)
   112  	}
   113  
   114  	// Now check a few things: arrays should be same length, Headers should match,
   115  	// names should be the same, and data should be the same. If this all works,
   116  	// it means we read in serialized data, wrote it out, read it in, and the
   117  	// structs all matched.
   118  	if len(files) != len(filesReadBack) {
   119  		t.Fatalf("[]file len from testCPIO %v and generated %v are not the same and should be", len(files), len(filesReadBack))
   120  	}
   121  	for i := range files {
   122  		f1 := files[i]
   123  		f2 := filesReadBack[i]
   124  
   125  		if f1.Info != f2.Info {
   126  			t.Errorf("index %d: testCPIO Info\n%v\ngenerated Info\n%v\n", i, f1.Info, f2.Info)
   127  		}
   128  
   129  		contents1, err := ioutil.ReadAll(uio.Reader(f1))
   130  		if err != nil {
   131  			t.Errorf("index %d(%q): can't read from the source: %v", i, f1.Name, err)
   132  		}
   133  		contents2, err := ioutil.ReadAll(uio.Reader(f2))
   134  		if err != nil {
   135  			t.Errorf("index %d(%q): can't read from the dest: %v", i, f2.Name, err)
   136  		}
   137  		if !bytes.Equal(contents1, contents2) {
   138  			t.Errorf("index %d content: file 1 (%q) is %v, file 2 (%q) wanted %v", i, f1.Name, contents1, f2.Name, contents2)
   139  		}
   140  	}
   141  }
   142  
   143  func TestBad(t *testing.T) {
   144  	r := Newc.Reader(bytes.NewReader(badCPIO))
   145  	if _, err := r.ReadRecord(); err != io.EOF {
   146  		t.Errorf("ReadRecord(badCPIO) got %v, want %v", err, io.EOF)
   147  	}
   148  
   149  	r = Newc.Reader(bytes.NewReader(badMagicCPIO))
   150  	if _, err := r.ReadRecord(); err == nil {
   151  		t.Errorf("Wanted bad magic err, got nil")
   152  	}
   153  }
   154  
   155  /*
   156  drwxrwxr-x   9 rminnich rminnich        0 Jan 22 22:18 .
   157  drwxr-xr-x   2 root     root            0 Jan 22 22:18 etc
   158  -rw-r--r--   1 root     root          118 Jan 22 22:18 etc/localtime
   159  -rw-r--r--   1 root     root           81 Jan 22 22:18 etc/resolv.conf
   160  drwxr-xr-x   2 root     root            0 Jan 22 22:18 lib64
   161  drwxr-xr-x   2 root     root            0 Jan 22 22:18 tcz
   162  drwxr-xr-x   2 root     root            0 Jan 22 22:18 bin
   163  drwxr-xr-x   2 root     root            0 Jan 22 22:18 tmp
   164  drwxr-xr-x   2 root     root            0 Jan 22 22:18 dev
   165  crw-r--r--   1 root     root       5,   1 Jan 22 22:18 dev/console
   166  crw-r--r--   1 root     root       4,  64 Jan 22 22:18 dev/ttyS0
   167  brw-rw----   1 root     root       7,   2 Jan 22 22:18 dev/loop2
   168  crw-------   1 root     root      10, 237 Jan 22 22:18 dev/loop-control
   169  brw-rw----   1 root     root       7,   7 Jan 22 22:18 dev/loop7
   170  brw-rw----   1 root     root       7,   6 Jan 22 22:18 dev/loop6
   171  brw-rw----   1 root     root       7,   4 Jan 22 22:18 dev/loop4
   172  brw-rw----   1 root     root       7,   1 Jan 22 22:18 dev/loop1
   173  brw-rw----   1 root     root       7,   5 Jan 22 22:18 dev/loop5
   174  crw-r--r--   1 root     root       1,   3 Jan 22 22:18 dev/null
   175  brw-rw----   1 root     root       7,   0 Jan 22 22:18 dev/loop0
   176  brw-rw----   1 root     root       7,   3 Jan 22 22:18 dev/loop3
   177  drwxr-xr-x   3 root     root            0 Jan 22 22:18 usr
   178  drwxr-xr-x   2 root     root            0 Jan 22 22:18 usr/lib
   179  */
   180  var (
   181  	badCPIO      = []byte{}
   182  	badMagicCPIO = []byte{0, 0, 0, 0, 0, 0}
   183  	testCPIO     = []byte{
   184  		0x30, 0x37, 0x30, 0x37, 0x30, 0x31, 0x30, 0x30, 0x33, 0x30, 0x45, 0x33,
   185  		0x43, 0x31, 0x30, 0x30, 0x30, 0x30, 0x34, 0x31, 0x46, 0x44, 0x30, 0x30,
   186  		0x30, 0x30, 0x30, 0x33, 0x45, 0x38, 0x30, 0x30, 0x30, 0x30, 0x30, 0x33,
   187  		0x45, 0x38, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x39, 0x35, 0x38,
   188  		0x38, 0x35, 0x41, 0x30, 0x34, 0x45, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   189  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x46, 0x43, 0x30, 0x30,
   190  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   191  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   192  		0x30, 0x30, 0x30, 0x30, 0x30, 0x32, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   193  		0x30, 0x30, 0x2e, 0x00, 0x30, 0x37, 0x30, 0x37, 0x30, 0x31, 0x30, 0x30,
   194  		0x33, 0x30, 0x45, 0x33, 0x43, 0x35, 0x30, 0x30, 0x30, 0x30, 0x34, 0x31,
   195  		0x45, 0x44, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   196  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   197  		0x30, 0x32, 0x35, 0x38, 0x38, 0x35, 0x41, 0x30, 0x34, 0x41, 0x30, 0x30,
   198  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   199  		0x46, 0x43, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   200  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   201  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x34, 0x30, 0x30,
   202  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x65, 0x74, 0x63, 0x00, 0x00, 0x00,
   203  		0x30, 0x37, 0x30, 0x37, 0x30, 0x31, 0x30, 0x30, 0x33, 0x30, 0x43, 0x32,
   204  		0x30, 0x43, 0x30, 0x30, 0x30, 0x30, 0x38, 0x31, 0x41, 0x34, 0x30, 0x30,
   205  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   206  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x31, 0x35, 0x38,
   207  		0x38, 0x35, 0x41, 0x30, 0x34, 0x41, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   208  		0x37, 0x36, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x46, 0x43, 0x30, 0x30,
   209  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   210  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   211  		0x30, 0x30, 0x30, 0x30, 0x30, 0x45, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   212  		0x30, 0x30, 0x65, 0x74, 0x63, 0x2f, 0x6c, 0x6f, 0x63, 0x61, 0x6c, 0x74,
   213  		0x69, 0x6d, 0x65, 0x00, 0x54, 0x5a, 0x69, 0x66, 0x32, 0x00, 0x00, 0x00,
   214  		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   215  		0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
   216  		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x04,
   217  		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0x54, 0x43, 0x00, 0x00, 0x00,
   218  		0x54, 0x5a, 0x69, 0x66, 0x32, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   219  		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
   220  		0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   221  		0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00,
   222  		0x00, 0x00, 0x55, 0x54, 0x43, 0x00, 0x00, 0x00, 0x0a, 0x55, 0x54, 0x43,
   223  		0x30, 0x0a, 0x00, 0x00, 0x30, 0x37, 0x30, 0x37, 0x30, 0x31, 0x30, 0x30,
   224  		0x33, 0x30, 0x37, 0x42, 0x30, 0x44, 0x30, 0x30, 0x30, 0x30, 0x38, 0x31,
   225  		0x41, 0x34, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   226  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   227  		0x30, 0x31, 0x35, 0x38, 0x38, 0x35, 0x41, 0x30, 0x34, 0x41, 0x30, 0x30,
   228  		0x30, 0x30, 0x30, 0x30, 0x35, 0x31, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   229  		0x46, 0x43, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   230  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   231  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x31, 0x30, 0x30, 0x30,
   232  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x65, 0x74, 0x63, 0x2f, 0x72, 0x65,
   233  		0x73, 0x6f, 0x6c, 0x76, 0x2e, 0x63, 0x6f, 0x6e, 0x66, 0x00, 0x00, 0x00,
   234  		0x6e, 0x61, 0x6d, 0x65, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, 0x20, 0x31,
   235  		0x39, 0x32, 0x2e, 0x31, 0x36, 0x38, 0x2e, 0x31, 0x2e, 0x31, 0x30, 0x0a,
   236  		0x73, 0x65, 0x61, 0x72, 0x63, 0x68, 0x20, 0x48, 0x6f, 0x6d, 0x65, 0x2e,
   237  		0x0a, 0x6f, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x73, 0x20, 0x73, 0x69, 0x6e,
   238  		0x67, 0x6c, 0x65, 0x2d, 0x72, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x20,
   239  		0x74, 0x69, 0x6d, 0x65, 0x6f, 0x75, 0x74, 0x3a, 0x31, 0x20, 0x61, 0x74,
   240  		0x74, 0x65, 0x6d, 0x70, 0x74, 0x73, 0x3a, 0x35, 0x0a, 0x00, 0x00, 0x00,
   241  		0x30, 0x37, 0x30, 0x37, 0x30, 0x31, 0x30, 0x30, 0x33, 0x30, 0x45, 0x33,
   242  		0x43, 0x42, 0x30, 0x30, 0x30, 0x30, 0x34, 0x31, 0x45, 0x44, 0x30, 0x30,
   243  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   244  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x32, 0x35, 0x38,
   245  		0x38, 0x35, 0x41, 0x30, 0x34, 0x41, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   246  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x46, 0x43, 0x30, 0x30,
   247  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   248  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   249  		0x30, 0x30, 0x30, 0x30, 0x30, 0x36, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   250  		0x30, 0x30, 0x6c, 0x69, 0x62, 0x36, 0x34, 0x00, 0x30, 0x37, 0x30, 0x37,
   251  		0x30, 0x31, 0x30, 0x30, 0x33, 0x30, 0x45, 0x33, 0x43, 0x34, 0x30, 0x30,
   252  		0x30, 0x30, 0x34, 0x31, 0x45, 0x44, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   253  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   254  		0x30, 0x30, 0x30, 0x30, 0x30, 0x32, 0x35, 0x38, 0x38, 0x35, 0x41, 0x30,
   255  		0x34, 0x41, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   256  		0x30, 0x30, 0x30, 0x30, 0x46, 0x43, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   257  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   258  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   259  		0x30, 0x34, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x74, 0x63,
   260  		0x7a, 0x00, 0x00, 0x00, 0x30, 0x37, 0x30, 0x37, 0x30, 0x31, 0x30, 0x30,
   261  		0x33, 0x30, 0x45, 0x33, 0x43, 0x43, 0x30, 0x30, 0x30, 0x30, 0x34, 0x31,
   262  		0x45, 0x44, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   263  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   264  		0x30, 0x32, 0x35, 0x38, 0x38, 0x35, 0x41, 0x30, 0x34, 0x41, 0x30, 0x30,
   265  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   266  		0x46, 0x43, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   267  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   268  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x34, 0x30, 0x30,
   269  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x62, 0x69, 0x6e, 0x00, 0x00, 0x00,
   270  		0x30, 0x37, 0x30, 0x37, 0x30, 0x31, 0x30, 0x30, 0x33, 0x30, 0x45, 0x33,
   271  		0x43, 0x44, 0x30, 0x30, 0x30, 0x30, 0x34, 0x31, 0x45, 0x44, 0x30, 0x30,
   272  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   273  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x32, 0x35, 0x38,
   274  		0x38, 0x35, 0x41, 0x30, 0x34, 0x41, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   275  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x46, 0x43, 0x30, 0x30,
   276  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
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   420  		0x30, 0x37, 0x30, 0x37, 0x30, 0x31, 0x30, 0x30, 0x33, 0x30, 0x45, 0x33,
   421  		0x43, 0x41, 0x30, 0x30, 0x30, 0x30, 0x34, 0x31, 0x45, 0x44, 0x30, 0x30,
   422  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   423  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x32, 0x35, 0x38,
   424  		0x38, 0x35, 0x41, 0x30, 0x34, 0x41, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   425  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x46, 0x43, 0x30, 0x30,
   426  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   427  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   428  		0x30, 0x30, 0x30, 0x30, 0x30, 0x38, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   429  		0x30, 0x30, 0x75, 0x73, 0x72, 0x2f, 0x6c, 0x69, 0x62, 0x00, 0x00, 0x00,
   430  		0x30, 0x37, 0x30, 0x37, 0x30, 0x31, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   431  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   432  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   433  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x31, 0x30, 0x30,
   434  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   435  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   436  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   437  		0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   438  		0x30, 0x30, 0x30, 0x30, 0x30, 0x42, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
   439  		0x30, 0x30, 0x54, 0x52, 0x41, 0x49, 0x4c, 0x45, 0x52, 0x21, 0x21, 0x21,
   440  		0, 0, 0, 0,
   441  	}
   442  
   443  	testResult = []string{
   444  		".: Ino 3204033 Mode 040775 UID 1000 GID 1000 NLink 9 MTime 2017-01-23 06:18:54 +0000 UTC FileSize 0 Major 252 Minor 0 Rmajor 0 Rminor 0",
   445  		"etc: Ino 3204037 Mode 040755 UID 0 GID 0 NLink 2 MTime 2017-01-23 06:18:50 +0000 UTC FileSize 0 Major 252 Minor 0 Rmajor 0 Rminor 0",
   446  		"etc/localtime: Ino 3195404 Mode 0100644 UID 0 GID 0 NLink 1 MTime 2017-01-23 06:18:50 +0000 UTC FileSize 118 Major 252 Minor 0 Rmajor 0 Rminor 0",
   447  		"etc/resolv.conf: Ino 3177229 Mode 0100644 UID 0 GID 0 NLink 1 MTime 2017-01-23 06:18:50 +0000 UTC FileSize 81 Major 252 Minor 0 Rmajor 0 Rminor 0",
   448  		"lib64: Ino 3204043 Mode 040755 UID 0 GID 0 NLink 2 MTime 2017-01-23 06:18:50 +0000 UTC FileSize 0 Major 252 Minor 0 Rmajor 0 Rminor 0",
   449  		"tcz: Ino 3204036 Mode 040755 UID 0 GID 0 NLink 2 MTime 2017-01-23 06:18:50 +0000 UTC FileSize 0 Major 252 Minor 0 Rmajor 0 Rminor 0",
   450  		"bin: Ino 3204044 Mode 040755 UID 0 GID 0 NLink 2 MTime 2017-01-23 06:18:50 +0000 UTC FileSize 0 Major 252 Minor 0 Rmajor 0 Rminor 0",
   451  		"tmp: Ino 3204045 Mode 040755 UID 0 GID 0 NLink 2 MTime 2017-01-23 06:18:50 +0000 UTC FileSize 0 Major 252 Minor 0 Rmajor 0 Rminor 0",
   452  		"dev: Ino 3204038 Mode 040755 UID 0 GID 0 NLink 2 MTime 2017-01-23 06:18:50 +0000 UTC FileSize 0 Major 252 Minor 0 Rmajor 0 Rminor 0",
   453  		"dev/console: Ino 3197985 Mode 020644 UID 0 GID 0 NLink 1 MTime 2017-01-23 06:18:50 +0000 UTC FileSize 0 Major 252 Minor 0 Rmajor 5 Rminor 1",
   454  		"dev/ttyS0: Ino 3197986 Mode 020644 UID 0 GID 0 NLink 1 MTime 2017-01-23 06:18:50 +0000 UTC FileSize 0 Major 252 Minor 0 Rmajor 4 Rminor 64",
   455  		"dev/loop2: Ino 3197987 Mode 060660 UID 0 GID 0 NLink 1 MTime 2017-01-23 06:18:50 +0000 UTC FileSize 0 Major 252 Minor 0 Rmajor 7 Rminor 2",
   456  		"dev/loop-control: Ino 3197983 Mode 020600 UID 0 GID 0 NLink 1 MTime 2017-01-23 06:18:50 +0000 UTC FileSize 0 Major 252 Minor 0 Rmajor 10 Rminor 237",
   457  		"dev/loop7: Ino 3197984 Mode 060660 UID 0 GID 0 NLink 1 MTime 2017-01-23 06:18:50 +0000 UTC FileSize 0 Major 252 Minor 0 Rmajor 7 Rminor 7",
   458  		"dev/loop6: Ino 3197975 Mode 060660 UID 0 GID 0 NLink 1 MTime 2017-01-23 06:18:50 +0000 UTC FileSize 0 Major 252 Minor 0 Rmajor 7 Rminor 6",
   459  		"dev/loop4: Ino 3197979 Mode 060660 UID 0 GID 0 NLink 1 MTime 2017-01-23 06:18:50 +0000 UTC FileSize 0 Major 252 Minor 0 Rmajor 7 Rminor 4",
   460  		"dev/loop1: Ino 3197981 Mode 060660 UID 0 GID 0 NLink 1 MTime 2017-01-23 06:18:50 +0000 UTC FileSize 0 Major 252 Minor 0 Rmajor 7 Rminor 1",
   461  		"dev/loop5: Ino 3197982 Mode 060660 UID 0 GID 0 NLink 1 MTime 2017-01-23 06:18:50 +0000 UTC FileSize 0 Major 252 Minor 0 Rmajor 7 Rminor 5",
   462  		"dev/null: Ino 3197988 Mode 020644 UID 0 GID 0 NLink 1 MTime 2017-01-23 06:18:50 +0000 UTC FileSize 0 Major 252 Minor 0 Rmajor 1 Rminor 3",
   463  		"dev/loop0: Ino 3197976 Mode 060660 UID 0 GID 0 NLink 1 MTime 2017-01-23 06:18:50 +0000 UTC FileSize 0 Major 252 Minor 0 Rmajor 7 Rminor 0",
   464  		"dev/loop3: Ino 3197980 Mode 060660 UID 0 GID 0 NLink 1 MTime 2017-01-23 06:18:50 +0000 UTC FileSize 0 Major 252 Minor 0 Rmajor 7 Rminor 3",
   465  		"usr: Ino 3204041 Mode 040755 UID 0 GID 0 NLink 3 MTime 2017-01-23 06:18:50 +0000 UTC FileSize 0 Major 252 Minor 0 Rmajor 0 Rminor 0",
   466  		"usr/lib: Ino 3204042 Mode 040755 UID 0 GID 0 NLink 2 MTime 2017-01-23 06:18:50 +0000 UTC FileSize 0 Major 252 Minor 0 Rmajor 0 Rminor 0",
   467  	}
   468  )
   469  
   470  // testReproducible verifies that we can produce reproducible cpio archives for newc format.
   471  func TestReproducible(t *testing.T) {
   472  	contents := []byte("LANAAAAAAAAAA")
   473  	rec := []Record{StaticRecord(contents, Info{
   474  		Ino:      1,
   475  		Mode:     syscall.S_IFREG | 2,
   476  		UID:      3,
   477  		GID:      4,
   478  		NLink:    5,
   479  		MTime:    6,
   480  		FileSize: 7,
   481  		Major:    8,
   482  		Minor:    9,
   483  		Rmajor:   10,
   484  		Rminor:   11,
   485  		Name:     "foobar",
   486  	}),
   487  	}
   488  
   489  	// First test that it fails unless we make it reproducible
   490  
   491  	b1 := &bytes.Buffer{}
   492  	w := Newc.Writer(b1)
   493  	if err := WriteRecords(w, rec); err != nil {
   494  		t.Errorf("Could not write record %q: %v", rec[0].Name, err)
   495  	}
   496  	rec[0].ReaderAt = bytes.NewReader(contents)
   497  	b2 := &bytes.Buffer{}
   498  	w = Newc.Writer(b2)
   499  	rec[0].MTime++
   500  	if err := WriteRecords(w, rec); err != nil {
   501  		t.Errorf("Could not write record %q: %v", rec[0].Name, err)
   502  	}
   503  
   504  	if reflect.DeepEqual(b1.Bytes()[:], b2.Bytes()[:]) {
   505  		t.Error("Reproducible: compared as same, wanted different")
   506  	}
   507  
   508  	// Second test that it works if we make it reproducible
   509  	// It does indeed fail without the second call.
   510  
   511  	b1 = &bytes.Buffer{}
   512  	w = Newc.Writer(b1)
   513  	rec[0].ReaderAt = bytes.NewReader([]byte(contents))
   514  	MakeAllReproducible(rec)
   515  	if err := WriteRecords(w, rec); err != nil {
   516  		t.Errorf("Could not write record %q: %v", rec[0].Name, err)
   517  	}
   518  
   519  	b2 = &bytes.Buffer{}
   520  	w = Newc.Writer(b2)
   521  	rec[0].MTime++
   522  	rec[0].ReaderAt = bytes.NewReader([]byte(contents))
   523  	MakeAllReproducible(rec)
   524  	if err := WriteRecords(w, rec); err != nil {
   525  		t.Errorf("Could not write record %q: %v", rec[0].Name, err)
   526  	}
   527  
   528  	if len(b1.Bytes()) != len(b2.Bytes()) {
   529  		t.Fatalf("Reproducible \n%v,\n%v: len is different, wanted same", b1.Bytes()[:], b2.Bytes()[:])
   530  	}
   531  	if !reflect.DeepEqual(b1.Bytes()[:], b2.Bytes()[:]) {
   532  		t.Error("Reproducible: compared different, wanted same")
   533  		for i := range b1.Bytes() {
   534  			a := b1.Bytes()[i]
   535  			b := b2.Bytes()[i]
   536  			if a != b {
   537  				t.Errorf("\tb1[%d] is %v, b2[%d] is %v", i, a, i, b)
   538  			}
   539  		}
   540  	}
   541  }