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 'diff --shortstat output for binary file change' '
  40         echo " 4 files changed, 2 insertions(+), 2 deletions(-)" >expected &&
  41         git diff --shortstat >current &&
  42         test_i18ncmp expected current
  43 '
  44
  45 test_expect_success 'diff --shortstat output for binary file change only' '
  46         echo " 1 file changed, 0 insertions(+), 0 deletions(-)" >expected &&
  47         git diff --shortstat -- b >current &&
  48         test_i18ncmp expected current
  49 '
  50
  51 test_expect_success 'apply --numstat notices binary file change' '
  52         git diff >diff &&
  53         git apply --numstat <diff >current &&
  54         test_cmp expect.binary-numstat current
  55 '
  56
  57 test_expect_success 'apply --numstat understands diff --binary format' '
  58         git diff --binary >diff &&
  59         git apply --numstat <diff >current &&
  60         test_cmp expect.binary-numstat current
  61 '
  62
  63 # apply needs to be able to skip the binary material correctly
  64 # in order to report the line number of a corrupt patch.
  65 test_expect_success 'apply detecting corrupt patch correctly' \
  66         'git diff | sed -e 's/-CIT/xCIT/' >broken &&
  67          if git apply --stat --summary broken 2>detected
  68          then
  69                 echo unhappy - should have detected an error
  70                 (exit 1)
  71          else
  72                 echo happy
  73          fi &&
  74          detected=`cat detected` &&
  75          detected=`expr "$detected" : "fatal.*at line \\([0-9]*\\)\$"` &&
  76          detected=`sed -ne "${detected}p" broken` &&
  77          test "$detected" = xCIT'
  78
  79 test_expect_success 'apply detecting corrupt patch correctly' \
  80         'git diff --binary | sed -e 's/-CIT/xCIT/' >broken &&
  81          if git apply --stat --summary broken 2>detected
  82          then
  83                 echo unhappy - should have detected an error
  84                 (exit 1)
  85          else
  86                 echo happy
  87          fi &&
  88          detected=`cat detected` &&
  89          detected=`expr "$detected" : "fatal.*at line \\([0-9]*\\)\$"` &&
  90          detected=`sed -ne "${detected}p" broken` &&
  91          test "$detected" = xCIT'
  92
  93 test_expect_success 'initial commit' 'git commit -a -m initial'
  94
  95 # Try removal (b), modification (d), and creation (e).
  96 test_expect_success 'diff-index with --binary' \
  97         'echo AIT >a && mv b e && echo CIT >c && cat e >d &&
  98          git update-index --add --remove a b c d e &&
  99          tree0=`git write-tree` &&
 100          git diff --cached --binary >current &&
 101          git apply --stat --summary current'
 102
 103 test_expect_success 'apply binary patch' \
 104         'git reset --hard &&
 105          git apply --binary --index <current &&
 106          tree1=`git write-tree` &&
 107          test "$tree1" = "$tree0"'
 108
 109 test_expect_success 'diff --no-index with binary creation' '
 110         echo Q | q_to_nul >binary &&
 111         (: hide error code from diff, which just indicates differences
 112          git diff --binary --no-index /dev/null binary >current ||
 113          true
 114         ) &&
 115         rm binary &&
 116         git apply --binary <current &&
 117         echo Q >expected &&
 118         nul_to_q <binary >actual &&
 119         test_cmp expected actual
 120 '
 121
 122 cat >expect <<EOF
 123  binfile  |   Bin 0 -> 1026 bytes
 124  textfile | 10000 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 125 EOF
 126
 127 test_expect_success 'diff --stat with binary files and big change count' '
 128         perl -e "print \"\\0\" x 1024; print \"X\\n\";" > binfile &&
 129         git add binfile &&
 130         i=0 &&
 131         while test $i -lt 10000; do
 132                 echo $i &&
 133                 i=$(($i + 1))
 134         done >textfile &&
 135         git add textfile &&
 136         git diff --cached --stat binfile textfile >output &&
 137         grep " | " output >actual &&
 138         test_cmp expect actual
 139 '
 140
 141 test_done