t/t6021-merge-criss-cross.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2005 Fredrik Kuivinen
   4 #
   5
   6 # See https://lore.kernel.org/git/Pine.LNX.4.44.0504271254120.4678-100000@wax.eds.org/ for a
   7 # nice description of what this is about.
   8
   9
  10 test_description='Test criss-cross merge'
  11 . ./test-lib.sh
  12
  13 test_expect_success 'prepare repository' \
  14 'echo "1
  15 2
  16 3
  17 4
  18 5
  19 6
  20 7
  21 8
  22 9" > file &&
  23 git add file &&
  24 git commit -m "Initial commit" file &&
  25 git branch A &&
  26 git branch B &&
  27 git checkout A &&
  28 echo "1
  29 2
  30 3
  31 4
  32 5
  33 6
  34 7
  35 8 changed in B8, branch A
  36 9" > file &&
  37 git commit -m "B8" file &&
  38 git checkout B &&
  39 echo "1
  40 2
  41 3 changed in C3, branch B
  42 4
  43 5
  44 6
  45 7
  46 8
  47 9
  48 " > file &&
  49 git commit -m "C3" file &&
  50 git branch C3 &&
  51 git merge -m "pre E3 merge" A &&
  52 echo "1
  53 2
  54 3 changed in E3, branch B. New file size
  55 4
  56 5
  57 6
  58 7
  59 8 changed in B8, branch A
  60 9
  61 " > file &&
  62 git commit -m "E3" file &&
  63 git checkout A &&
  64 git merge -m "pre D8 merge" C3 &&
  65 echo "1
  66 2
  67 3 changed in C3, branch B
  68 4
  69 5
  70 6
  71 7
  72 8 changed in D8, branch A. New file size 2
  73 9" > file &&
  74 git commit -m D8 file'
  75
  76 test_expect_success 'Criss-cross merge' 'git merge -m "final merge" B'
  77
  78 cat > file-expect <<EOF
  79 1
  80 2
  81 3 changed in E3, branch B. New file size
  82 4
  83 5
  84 6
  85 7
  86 8 changed in D8, branch A. New file size 2
  87 9
  88 EOF
  89
  90 test_expect_success 'Criss-cross merge result' 'cmp file file-expect'
  91
  92 test_expect_success 'Criss-cross merge fails (-s resolve)' \
  93 'git reset --hard A^ &&
  94 test_must_fail git merge -s resolve -m "final merge" B'
  95
  96 test_done