t/t7607-merge-overwrite.sh

   1 #!/bin/sh
   2
   3 test_description='git-merge
   4
   5 Do not overwrite changes.'
   6
   7 . ./test-lib.sh
   8
   9 test_expect_success 'setup' '
  10         test_commit c0 c0.c &&
  11         test_commit c1 c1.c &&
  12         test_commit c1a c1.c "c1 a" &&
  13         git reset --hard c0 &&
  14         test_commit c2 c2.c &&
  15         git reset --hard c0 &&
  16         mkdir sub &&
  17         echo "sub/f" > sub/f &&
  18         git add sub/f &&
  19         git commit -m sub &&
  20         git tag sub &&
  21         echo "VERY IMPORTANT CHANGES" > important
  22 '
  23
  24 test_expect_success 'will not overwrite untracked file' '
  25         git reset --hard c1 &&
  26         cp important c2.c &&
  27         test_must_fail git merge c2 &&
  28         test_path_is_missing .git/MERGE_HEAD &&
  29         test_cmp important c2.c
  30 '
  31
  32 test_expect_success 'will overwrite tracked file' '
  33         git reset --hard c1 &&
  34         cp important c2.c &&
  35         git add c2.c &&
  36         git commit -m important &&
  37         git checkout c2
  38 '
  39
  40 test_expect_success 'will not overwrite new file' '
  41         git reset --hard c1 &&
  42         cp important c2.c &&
  43         git add c2.c &&
  44         test_must_fail git merge c2 &&
  45         test_path_is_missing .git/MERGE_HEAD &&
  46         test_cmp important c2.c
  47 '
  48
  49 test_expect_success 'will not overwrite staged changes' '
  50         git reset --hard c1 &&
  51         cp important c2.c &&
  52         git add c2.c &&
  53         rm c2.c &&
  54         test_must_fail git merge c2 &&
  55         test_path_is_missing .git/MERGE_HEAD &&
  56         git checkout c2.c &&
  57         test_cmp important c2.c
  58 '
  59
  60 test_expect_success 'will not overwrite removed file' '
  61         git reset --hard c1 &&
  62         git rm c1.c &&
  63         git commit -m "rm c1.c" &&
  64         cp important c1.c &&
  65         test_must_fail git merge c1a &&
  66         test_cmp important c1.c
  67 '
  68
  69 test_expect_success 'will not overwrite re-added file' '
  70         git reset --hard c1 &&
  71         git rm c1.c &&
  72         git commit -m "rm c1.c" &&
  73         cp important c1.c &&
  74         git add c1.c &&
  75         test_must_fail git merge c1a &&
  76         test_path_is_missing .git/MERGE_HEAD &&
  77         test_cmp important c1.c
  78 '
  79
  80 test_expect_success 'will not overwrite removed file with staged changes' '
  81         git reset --hard c1 &&
  82         git rm c1.c &&
  83         git commit -m "rm c1.c" &&
  84         cp important c1.c &&
  85         git add c1.c &&
  86         rm c1.c &&
  87         test_must_fail git merge c1a &&
  88         test_path_is_missing .git/MERGE_HEAD &&
  89         git checkout c1.c &&
  90         test_cmp important c1.c
  91 '
  92
  93 test_expect_success 'will not overwrite untracked subtree' '
  94         git reset --hard c0 &&
  95         rm -rf sub &&
  96         mkdir -p sub/f &&
  97         cp important sub/f/important &&
  98         test_must_fail git merge sub &&
  99         test_path_is_missing .git/MERGE_HEAD &&
 100         test_cmp important sub/f/important
 101 '
 102
 103 test_expect_failure 'will not overwrite untracked file in leading path' '
 104         git reset --hard c0 &&
 105         rm -rf sub &&
 106         cp important sub &&
 107         test_must_fail git merge sub &&
 108         test_path_is_missing .git/MERGE_HEAD &&
 109         test_cmp important sub
 110 '
 111
 112 test_expect_failure SYMLINKS 'will not overwrite untracked symlink in leading path' '
 113         git reset --hard c0 &&
 114         rm -rf sub &&
 115         mkdir sub2 &&
 116         ln -s sub2 sub &&
 117         test_must_fail git merge sub &&
 118         test_path_is_missing .git/MERGE_HEAD
 119 '
 120
 121 test_expect_success SYMLINKS 'will not be confused by symlink in leading path' '
 122         git reset --hard c0 &&
 123         rm -rf sub &&
 124         ln -s sub2 sub &&
 125         git add sub &&
 126         git commit -m ln &&
 127         git checkout sub
 128 '
 129
 130 test_done