t/t4116-apply-reverse.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2005 Junio C Hamano
   4 #
   5
   6 test_description='git apply in reverse
   7
   8 '
   9
  10
  11 TEST_PASSES_SANITIZE_LEAK=true
  12 . ./test-lib.sh
  13
  14 test_expect_success setup '
  15
  16         test_write_lines a b c d e f g h i j k l m n >file1 &&
  17         perl -pe "y/ijk/\\000\\001\\002/" <file1 >file2 &&
  18
  19         git add file1 file2 &&
  20         git commit -m initial &&
  21         git tag initial &&
  22
  23         test_write_lines a b c g h i J K L m o n p q >file1 &&
  24         perl -pe "y/mon/\\000\\001\\002/" <file1 >file2 &&
  25
  26         git commit -a -m second &&
  27         git tag second &&
  28
  29         git diff --binary initial second >patch
  30
  31 '
  32
  33 test_expect_success 'apply in forward' '
  34
  35         T0=$(git rev-parse "second^{tree}") &&
  36         git reset --hard initial &&
  37         git apply --index --binary patch &&
  38         T1=$(git write-tree) &&
  39         test "$T0" = "$T1"
  40 '
  41
  42 test_expect_success 'apply in reverse' '
  43
  44         git reset --hard second &&
  45         git apply --reverse --binary --index patch &&
  46         git diff >diff &&
  47         test_must_be_empty diff
  48
  49 '
  50
  51 test_expect_success 'setup separate repository lacking postimage' '
  52
  53         git archive --format=tar --prefix=initial/ initial | $TAR xf - &&
  54         (
  55                 cd initial && git init && git add .
  56         ) &&
  57
  58         git archive --format=tar --prefix=second/ second | $TAR xf - &&
  59         (
  60                 cd second && git init && git add .
  61         )
  62
  63 '
  64
  65 test_expect_success 'apply in forward without postimage' '
  66
  67         T0=$(git rev-parse "second^{tree}") &&
  68         (
  69                 cd initial &&
  70                 git apply --index --binary ../patch &&
  71                 T1=$(git write-tree) &&
  72                 test "$T0" = "$T1"
  73         )
  74 '
  75
  76 test_expect_success 'apply in reverse without postimage' '
  77
  78         T0=$(git rev-parse "initial^{tree}") &&
  79         (
  80                 cd second &&
  81                 git apply --index --binary --reverse ../patch &&
  82                 T1=$(git write-tree) &&
  83                 test "$T0" = "$T1"
  84         )
  85 '
  86
  87 test_expect_success 'reversing a whitespace introduction' '
  88         sed "s/a/a /" < file1 > file1.new &&
  89         mv file1.new file1 &&
  90         git diff | git apply --reverse --whitespace=error
  91 '
  92
  93 test_done