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_PASSES_SANITIZE_LEAK=true
   8 . ./test-lib.sh
   9
  10 # This scenario is based on a real-world repository of Shawn Pearce.
  11
  12 # 1 - A - D - F
  13 #   \   X   /
  14 #     B   X
  15 #       X   \
  16 # 2 - C - E - G
  17
  18 GIT_COMMITTER_DATE="2006-12-12 23:28:00 +0100"
  19 export GIT_COMMITTER_DATE
  20
  21 test_expect_success 'setup tests' '
  22         GIT_TEST_COMMIT_GRAPH=0 &&
  23         export GIT_TEST_COMMIT_GRAPH &&
  24         echo 1 >a1 &&
  25         git add a1 &&
  26         GIT_AUTHOR_DATE="2006-12-12 23:00:00" git commit -m 1 a1 &&
  27
  28         git checkout -b A main &&
  29         echo A >a1 &&
  30         GIT_AUTHOR_DATE="2006-12-12 23:00:01" git commit -m A a1 &&
  31
  32         git checkout -b B main &&
  33         echo B >a1 &&
  34         GIT_AUTHOR_DATE="2006-12-12 23:00:02" git commit -m B a1 &&
  35
  36         git checkout -b D A &&
  37         git rev-parse B >.git/MERGE_HEAD &&
  38         echo D >a1 &&
  39         git update-index a1 &&
  40         GIT_AUTHOR_DATE="2006-12-12 23:00:03" git commit -m D &&
  41
  42         git symbolic-ref HEAD refs/heads/other &&
  43         echo 2 >a1 &&
  44         GIT_AUTHOR_DATE="2006-12-12 23:00:04" git commit -m 2 a1 &&
  45
  46         git checkout -b C &&
  47         echo C >a1 &&
  48         GIT_AUTHOR_DATE="2006-12-12 23:00:05" git commit -m C a1 &&
  49
  50         git checkout -b E C &&
  51         git rev-parse B >.git/MERGE_HEAD &&
  52         echo E >a1 &&
  53         git update-index a1 &&
  54         GIT_AUTHOR_DATE="2006-12-12 23:00:06" git commit -m E &&
  55
  56         git checkout -b G E &&
  57         git rev-parse A >.git/MERGE_HEAD &&
  58         echo G >a1 &&
  59         git update-index a1 &&
  60         GIT_AUTHOR_DATE="2006-12-12 23:00:07" git commit -m G &&
  61
  62         git checkout -b F D &&
  63         git rev-parse C >.git/MERGE_HEAD &&
  64         echo F >a1 &&
  65         git update-index a1 &&
  66         GIT_AUTHOR_DATE="2006-12-12 23:00:08" git commit -m F &&
  67
  68         test_oid_cache <<-EOF
  69         idxstage1 sha1:ec3fe2a791706733f2d8fa7ad45d9a9672031f5e
  70         idxstage1 sha256:b3c8488929903aaebdeb22270cb6d36e5b8724b01ae0d4da24632f158c99676f
  71         EOF
  72 '
  73
  74 test_expect_success 'combined merge conflicts' '
  75         test_must_fail git merge -m final G
  76 '
  77
  78 test_expect_success 'result contains a conflict' '
  79         cat >expect <<-\EOF &&
  80         <<<<<<< HEAD
  81         F
  82         =======
  83         G
  84         >>>>>>> G
  85         EOF
  86
  87         test_cmp expect a1
  88 '
  89
  90 test_expect_success 'virtual trees were processed' '
  91         # TODO: fragile test, relies on ambiguous merge-base resolution
  92         git ls-files --stage >out &&
  93
  94         cat >expect <<-EOF &&
  95         100644 $(test_oid idxstage1) 1  a1
  96         100644 $(git rev-parse F:a1) 2  a1
  97         100644 $(git rev-parse G:a1) 3  a1
  98         EOF
  99
 100         test_cmp expect out
 101 '
 102
 103 test_expect_success 'refuse to merge binary files' '
 104         git reset --hard &&
 105         printf "\0" >binary-file &&
 106         git add binary-file &&
 107         git commit -m binary &&
 108         git checkout G &&
 109         printf "\0\0" >binary-file &&
 110         git add binary-file &&
 111         git commit -m binary2 &&
 112         if test "$GIT_TEST_MERGE_ALGORITHM" = ort
 113         then
 114                 test_must_fail git merge F >merge_output
 115         else
 116                 test_must_fail git merge F 2>merge_output
 117         fi &&
 118         grep "Cannot merge binary files: binary-file (HEAD vs. F)" merge_output
 119 '
 120
 121 test_expect_success 'mark rename/delete as unmerged' '
 122
 123         git reset --hard &&
 124         git checkout -b delete &&
 125         git rm a1 &&
 126         test_tick &&
 127         git commit -m delete &&
 128         git checkout -b rename HEAD^ &&
 129         git mv a1 a2 &&
 130         test_tick &&
 131         git commit -m rename &&
 132         test_must_fail git merge delete &&
 133         if test "$GIT_TEST_MERGE_ALGORITHM" = ort
 134         then
 135                 test 2 = $(git ls-files --unmerged | wc -l)
 136         else
 137                 test 1 = $(git ls-files --unmerged | wc -l)
 138         fi &&
 139         git rev-parse --verify :2:a2 &&
 140         test_must_fail git rev-parse --verify :3:a2 &&
 141         git checkout -f delete &&
 142         test_must_fail git merge rename &&
 143         if test "$GIT_TEST_MERGE_ALGORITHM" = ort
 144         then
 145                 test 2 = $(git ls-files --unmerged | wc -l)
 146         else
 147                 test 1 = $(git ls-files --unmerged | wc -l)
 148         fi &&
 149         test_must_fail git rev-parse --verify :2:a2 &&
 150         git rev-parse --verify :3:a2
 151 '
 152
 153 test_done