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t6036: criss-cross with weird content can fool git into clean merge

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Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Elijah Newren 2011-08-11 23:19:42 -06:00 committed by Junio C Hamano
parent fe7e9c23e4
commit 96b079e5c9
1 changed files with 83 additions and 0 deletions
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83
t/t6036-recursive-corner-cases.sh
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@ -314,4 +314,87 @@ test_expect_failure 'git detects conflict merging criss-cross+modify/delete, rev
test $(git rev-parse :3:file) = $(git rev-parse B:file) test $(git rev-parse :3:file) = $(git rev-parse B:file)
' '
#
# criss-cross + modify/modify with very contrived file contents:
#
# B D
# o---o
# / \ / \
# A o X ? F
# \ / \ /
# o---o
# C E
#
# Commit A: file with contents 'A\n'
# Commit B: file with contents 'B\n'
# Commit C: file with contents 'C\n'
# Commit D: file with contents 'D\n'
# Commit E: file with contents:
# <<<<<<< Temporary merge branch 1
# C
# =======
# B
# >>>>>>> Temporary merge branch 2
#
# Now, when we merge commits D & E, does git detect the conflict?
test_expect_success 'setup differently handled merges of content conflict' '
git clean -fdqx &&
rm -rf .git &&
git init &&
echo A >file &&
git add file &&
test_tick &&
git commit -m A &&
git branch B &&
git checkout -b C &&
echo C >file &&
git add file &&
test_tick &&
git commit -m C &&
git checkout B &&
echo B >file &&
git add file &&
test_tick &&
git commit -m B &&
git checkout B^0 &&
test_must_fail git merge C &&
echo D >file &&
git add file &&
test_tick &&
git commit -m D &&
git tag D &&
git checkout C^0 &&
test_must_fail git merge B &&
cat <<EOF >file &&
<<<<<<< Temporary merge branch 1
C
=======
B
>>>>>>> Temporary merge branch 2
EOF
git add file &&
test_tick &&
git commit -m E &&
git tag E
'
test_expect_failure 'git detects conflict w/ criss-cross+contrived resolution' '
git checkout D^0 &&
test_must_fail git merge -s recursive E^0 &&
test 3 -eq $(git ls-files -s | wc -l) &&
test 3 -eq $(git ls-files -u | wc -l) &&
test 0 -eq $(git ls-files -o | wc -l) &&
test $(git rev-parse :2:file) = $(git rev-parse D:file) &&
test $(git rev-parse :3:file) = $(git rev-parse E:file)
'
test_done test_done