t/t6404-recursive-merge.sh

   1 #!/bin/sh
   2
   3 test_description='Test merge without common ancestors'
   4 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
   5 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
   6
   7 . ./test-lib.sh
   8
   9 # This scenario is based on a real-world repository of Shawn Pearce.
  10
  11 # 1 - A - D - F
  12 #   \   X   /
  13 #     B   X
  14 #       X   \
  15 # 2 - C - E - G
  16
  17 GIT_COMMITTER_DATE="2006-12-12 23:28:00 +0100"
  18 export GIT_COMMITTER_DATE
  19
  20 test_expect_success 'setup tests' '
  21         GIT_TEST_COMMIT_GRAPH=0 &&
  22         export GIT_TEST_COMMIT_GRAPH &&
  23         echo 1 >a1 &&
  24         git add a1 &&
  25         GIT_AUTHOR_DATE="2006-12-12 23:00:00" git commit -m 1 a1 &&
  26
  27         git checkout -b A main &&
  28         echo A >a1 &&
  29         GIT_AUTHOR_DATE="2006-12-12 23:00:01" git commit -m A a1 &&
  30
  31         git checkout -b B main &&
  32         echo B >a1 &&
  33         GIT_AUTHOR_DATE="2006-12-12 23:00:02" git commit -m B a1 &&
  34
  35         git checkout -b D A &&
  36         git rev-parse B >.git/MERGE_HEAD &&
  37         echo D >a1 &&
  38         git update-index a1 &&
  39         GIT_AUTHOR_DATE="2006-12-12 23:00:03" git commit -m D &&
  40
  41         git symbolic-ref HEAD refs/heads/other &&
  42         echo 2 >a1 &&
  43         GIT_AUTHOR_DATE="2006-12-12 23:00:04" git commit -m 2 a1 &&
  44
  45         git checkout -b C &&
  46         echo C >a1 &&
  47         GIT_AUTHOR_DATE="2006-12-12 23:00:05" git commit -m C a1 &&
  48
  49         git checkout -b E C &&
  50         git rev-parse B >.git/MERGE_HEAD &&
  51         echo E >a1 &&
  52         git update-index a1 &&
  53         GIT_AUTHOR_DATE="2006-12-12 23:00:06" git commit -m E &&
  54
  55         git checkout -b G E &&
  56         git rev-parse A >.git/MERGE_HEAD &&
  57         echo G >a1 &&
  58         git update-index a1 &&
  59         GIT_AUTHOR_DATE="2006-12-12 23:00:07" git commit -m G &&
  60
  61         git checkout -b F D &&
  62         git rev-parse C >.git/MERGE_HEAD &&
  63         echo F >a1 &&
  64         git update-index a1 &&
  65         GIT_AUTHOR_DATE="2006-12-12 23:00:08" git commit -m F &&
  66
  67         test_oid_cache <<-EOF
  68         idxstage1 sha1:ec3fe2a791706733f2d8fa7ad45d9a9672031f5e
  69         idxstage1 sha256:b3c8488929903aaebdeb22270cb6d36e5b8724b01ae0d4da24632f158c99676f
  70         EOF
  71 '
  72
  73 test_expect_success 'combined merge conflicts' '
  74         test_must_fail git merge -m final G
  75 '
  76
  77 test_expect_success 'result contains a conflict' '
  78         cat >expect <<-\EOF &&
  79         <<<<<<< HEAD
  80         F
  81         =======
  82         G
  83         >>>>>>> G
  84         EOF
  85
  86         test_cmp expect a1
  87 '
  88
  89 test_expect_success 'virtual trees were processed' '
  90         # TODO: fragile test, relies on ambigious merge-base resolution
  91         git ls-files --stage >out &&
  92
  93         cat >expect <<-EOF &&
  94         100644 $(test_oid idxstage1) 1  a1
  95         100644 $(git rev-parse F:a1) 2  a1
  96         100644 $(git rev-parse G:a1) 3  a1
  97         EOF
  98
  99         test_cmp expect out
 100 '
 101
 102 test_expect_success 'refuse to merge binary files' '
 103         git reset --hard &&
 104         printf "\0" >binary-file &&
 105         git add binary-file &&
 106         git commit -m binary &&
 107         git checkout G &&
 108         printf "\0\0" >binary-file &&
 109         git add binary-file &&
 110         git commit -m binary2 &&
 111         if test "$GIT_TEST_MERGE_ALGORITHM" = ort
 112         then
 113                 test_must_fail git merge F >merge_output
 114         else
 115                 test_must_fail git merge F 2>merge_output
 116         fi &&
 117         grep "Cannot merge binary files: binary-file (HEAD vs. F)" merge_output
 118 '
 119
 120 test_expect_success 'mark rename/delete as unmerged' '
 121
 122         git reset --hard &&
 123         git checkout -b delete &&
 124         git rm a1 &&
 125         test_tick &&
 126         git commit -m delete &&
 127         git checkout -b rename HEAD^ &&
 128         git mv a1 a2 &&
 129         test_tick &&
 130         git commit -m rename &&
 131         test_must_fail git merge delete &&
 132         if test "$GIT_TEST_MERGE_ALGORITHM" = ort
 133         then
 134                 test 2 = $(git ls-files --unmerged | wc -l)
 135         else
 136                 test 1 = $(git ls-files --unmerged | wc -l)
 137         fi &&
 138         git rev-parse --verify :2:a2 &&
 139         test_must_fail git rev-parse --verify :3:a2 &&
 140         git checkout -f delete &&
 141         test_must_fail git merge rename &&
 142         if test "$GIT_TEST_MERGE_ALGORITHM" = ort
 143         then
 144                 test 2 = $(git ls-files --unmerged | wc -l)
 145         else
 146                 test 1 = $(git ls-files --unmerged | wc -l)
 147         fi &&
 148         test_must_fail git rev-parse --verify :2:a2 &&
 149         git rev-parse --verify :3:a2
 150 '
 151
 152 test_done