t/t4012-diff-binary.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2006 Junio C Hamano
   4 #
   5
   6 test_description='Binary diff and apply
   7 '
   8
   9 . ./test-lib.sh
  10
  11 cat >expect.binary-numstat <<\EOF
  12 1       1       a
  13 -       -       b
  14 1       1       c
  15 -       -       d
  16 EOF
  17
  18 test_expect_success 'prepare repository' \
  19         'echo AIT >a && echo BIT >b && echo CIT >c && echo DIT >d &&
  20          git update-index --add a b c d &&
  21          echo git >a &&
  22          cat "$TEST_DIRECTORY"/test-binary-1.png >b &&
  23          echo git >c &&
  24          cat b b >d'
  25
  26 cat > expected <<\EOF
  27  a |    2 +-
  28  b |  Bin
  29  c |    2 +-
  30  d |  Bin
  31  4 files changed, 2 insertions(+), 2 deletions(-)
  32 EOF
  33 test_expect_success '"apply --stat" output for binary file change' '
  34         git diff >diff &&
  35         git apply --stat --summary <diff >current &&
  36         test_i18ncmp expected current
  37 '
  38
  39 test_expect_success 'apply --numstat notices binary file change' '
  40         git diff >diff &&
  41         git apply --numstat <diff >current &&
  42         test_cmp expect.binary-numstat current
  43 '
  44
  45 test_expect_success 'apply --numstat understands diff --binary format' '
  46         git diff --binary >diff &&
  47         git apply --numstat <diff >current &&
  48         test_cmp expect.binary-numstat current
  49 '
  50
  51 # apply needs to be able to skip the binary material correctly
  52 # in order to report the line number of a corrupt patch.
  53 test_expect_success 'apply detecting corrupt patch correctly' \
  54         'git diff | sed -e 's/-CIT/xCIT/' >broken &&
  55          if git apply --stat --summary broken 2>detected
  56          then
  57                 echo unhappy - should have detected an error
  58                 (exit 1)
  59          else
  60                 echo happy
  61          fi &&
  62          detected=`cat detected` &&
  63          detected=`expr "$detected" : "fatal.*at line \\([0-9]*\\)\$"` &&
  64          detected=`sed -ne "${detected}p" broken` &&
  65          test "$detected" = xCIT'
  66
  67 test_expect_success 'apply detecting corrupt patch correctly' \
  68         'git diff --binary | sed -e 's/-CIT/xCIT/' >broken &&
  69          if git apply --stat --summary broken 2>detected
  70          then
  71                 echo unhappy - should have detected an error
  72                 (exit 1)
  73          else
  74                 echo happy
  75          fi &&
  76          detected=`cat detected` &&
  77          detected=`expr "$detected" : "fatal.*at line \\([0-9]*\\)\$"` &&
  78          detected=`sed -ne "${detected}p" broken` &&
  79          test "$detected" = xCIT'
  80
  81 test_expect_success 'initial commit' 'git commit -a -m initial'
  82
  83 # Try removal (b), modification (d), and creation (e).
  84 test_expect_success 'diff-index with --binary' \
  85         'echo AIT >a && mv b e && echo CIT >c && cat e >d &&
  86          git update-index --add --remove a b c d e &&
  87          tree0=`git write-tree` &&
  88          git diff --cached --binary >current &&
  89          git apply --stat --summary current'
  90
  91 test_expect_success 'apply binary patch' \
  92         'git reset --hard &&
  93          git apply --binary --index <current &&
  94          tree1=`git write-tree` &&
  95          test "$tree1" = "$tree0"'
  96
  97 test_expect_success 'diff --no-index with binary creation' '
  98         echo Q | q_to_nul >binary &&
  99         (: hide error code from diff, which just indicates differences
 100          git diff --binary --no-index /dev/null binary >current ||
 101          true
 102         ) &&
 103         rm binary &&
 104         git apply --binary <current &&
 105         echo Q >expected &&
 106         nul_to_q <binary >actual &&
 107         test_cmp expected actual
 108 '
 109
 110 cat >expect <<EOF
 111  binfile  |   Bin 0 -> 1026 bytes
 112  textfile | 10000 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 113 EOF
 114
 115 test_expect_success 'diff --stat with binary files and big change count' '
 116         echo X | dd of=binfile bs=1k seek=1 &&
 117         git add binfile &&
 118         i=0 &&
 119         while test $i -lt 10000; do
 120                 echo $i &&
 121                 i=$(($i + 1))
 122         done >textfile &&
 123         git add textfile &&
 124         git diff --cached --stat binfile textfile >output &&
 125         grep " | " output >actual &&
 126         test_cmp expect actual
 127 '
 128
 129 test_done