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 . ./test-lib.sh
  11
  12 test_expect_success setup '
  13
  14         for i in a b c d e f g h i j k l m n; do echo $i; done >file1 &&
  15         tr "[ijk]" '\''[\0\1\2]'\'' <file1 >file2 &&
  16
  17         git add file1 file2 &&
  18         git commit -m initial &&
  19         git tag initial &&
  20
  21         for i in a b c g h i J K L m o n p q; do echo $i; done >file1 &&
  22         tr "[mon]" '\''[\0\1\2]'\'' <file1 >file2 &&
  23
  24         git commit -a -m second &&
  25         git tag second &&
  26
  27         git diff --binary initial second >patch
  28
  29 '
  30
  31 test_expect_success 'apply in forward' '
  32
  33         T0=`git rev-parse "second^{tree}"` &&
  34         git reset --hard initial &&
  35         git apply --index --binary patch &&
  36         T1=`git write-tree` &&
  37         test "$T0" = "$T1"
  38 '
  39
  40 test_expect_success 'apply in reverse' '
  41
  42         git reset --hard second &&
  43         git apply --reverse --binary --index patch &&
  44         git diff >diff &&
  45         git diff /dev/null diff
  46
  47 '
  48
  49 test_expect_success 'setup separate repository lacking postimage' '
  50
  51         git tar-tree initial initial | tar xf - &&
  52         (
  53                 cd initial && git init && git add .
  54         ) &&
  55
  56         git tar-tree second second | tar xf - &&
  57         (
  58                 cd second && git init && git add .
  59         )
  60
  61 '
  62
  63 test_expect_success 'apply in forward without postimage' '
  64
  65         T0=`git rev-parse "second^{tree}"` &&
  66         (
  67                 cd initial &&
  68                 git apply --index --binary ../patch &&
  69                 T1=`git write-tree` &&
  70                 test "$T0" = "$T1"
  71         )
  72 '
  73
  74 test_expect_success 'apply in reverse without postimage' '
  75
  76         T0=`git rev-parse "initial^{tree}"` &&
  77         (
  78                 cd second &&
  79                 git apply --index --binary --reverse ../patch &&
  80                 T1=`git write-tree` &&
  81                 test "$T0" = "$T1"
  82         )
  83 '
  84
  85 test_expect_success 'reversing a whitespace introduction' '
  86         sed "s/a/a /" < file1 > file1.new &&
  87         mv file1.new file1 &&
  88         git diff | git apply --reverse --whitespace=error
  89 '
  90
  91 test_done