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#!/bin/sh
test_description='Test merge without common ancestors'
. ./test-lib.sh
# This scenario is based on a real-world repository of Shawn Pearce.
# 1 - A - D - F
# \ X /
# B X
# X \
# 2 - C - E - G
GIT_COMMITTER_DATE="2006-12-12 23:28:00 +0100"
export GIT_COMMITTER_DATE
test_expect_success "setup tests" '
echo 1 > a1 &&
git add a1 &&
GIT_AUTHOR_DATE="2006-12-12 23:00:00" git commit -m 1 a1 &&
git checkout -b A master &&
echo A > a1 &&
GIT_AUTHOR_DATE="2006-12-12 23:00:01" git commit -m A a1 &&
git checkout -b B master &&
echo B > a1 &&
GIT_AUTHOR_DATE="2006-12-12 23:00:02" git commit -m B a1 &&
git checkout -b D A &&
git rev-parse B > .git/MERGE_HEAD &&
echo D > a1 &&
git update-index a1 &&
GIT_AUTHOR_DATE="2006-12-12 23:00:03" git commit -m D &&
git symbolic-ref HEAD refs/heads/other &&
echo 2 > a1 &&
GIT_AUTHOR_DATE="2006-12-12 23:00:04" git commit -m 2 a1 &&
git checkout -b C &&
echo C > a1 &&
GIT_AUTHOR_DATE="2006-12-12 23:00:05" git commit -m C a1 &&
git checkout -b E C &&
git rev-parse B > .git/MERGE_HEAD &&
echo E > a1 &&
git update-index a1 &&
GIT_AUTHOR_DATE="2006-12-12 23:00:06" git commit -m E &&
git checkout -b G E &&
git rev-parse A > .git/MERGE_HEAD &&
echo G > a1 &&
git update-index a1 &&
GIT_AUTHOR_DATE="2006-12-12 23:00:07" git commit -m G &&
git checkout -b F D &&
git rev-parse C > .git/MERGE_HEAD &&
echo F > a1 &&
git update-index a1 &&
GIT_AUTHOR_DATE="2006-12-12 23:00:08" git commit -m F
'
test_expect_success 'combined merge conflicts' '
test_must_fail env GIT_TEST_COMMIT_GRAPH=0 git merge -m final G
'
cat > expect << EOF
<<<<<<< HEAD
F
=======
G
>>>>>>> G
EOF
test_expect_success "result contains a conflict" "test_cmp expect a1"
git ls-files --stage > out
cat > expect << EOF
100644 ec3fe2a791706733f2d8fa7ad45d9a9672031f5e 1 a1
100644 cf84443e49e1b366fac938711ddf4be2d4d1d9e9 2 a1
100644 fd7923529855d0b274795ae3349c5e0438333979 3 a1
EOF
test_expect_success "virtual trees were processed" "test_cmp expect out"
test_expect_success 'refuse to merge binary files' '
git reset --hard &&
printf "\0" > binary-file &&
git add binary-file &&
git commit -m binary &&
git checkout G &&
printf "\0\0" > binary-file &&
git add binary-file &&
git commit -m binary2 &&
test_must_fail git merge F > merge.out 2> merge.err &&
grep "Cannot merge binary files: binary-file (HEAD vs. F)" merge.err
'
test_expect_success 'mark rename/delete as unmerged' '
git reset --hard &&
git checkout -b delete &&
git rm a1 &&
test_tick &&
git commit -m delete &&
git checkout -b rename HEAD^ &&
git mv a1 a2 &&
test_tick &&
git commit -m rename &&
test_must_fail git merge delete &&
test 1 = $(git ls-files --unmerged | wc -l) &&
git rev-parse --verify :2:a2 &&
test_must_fail git rev-parse --verify :3:a2 &&
git checkout -f delete &&
test_must_fail git merge rename &&
test 1 = $(git ls-files --unmerged | wc -l) &&
test_must_fail git rev-parse --verify :2:a2 &&
git rev-parse --verify :3:a2
'
test_done
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