git-commit-vandalism/t/t7604-merge-custom-message.sh

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#!/bin/sh
test_description='git merge
Testing merge when using a custom message for the merge commit.'
. ./test-lib.sh
create_merge_msgs() {
echo >exp.subject "custom message"
}
test_expect_success 'setup' '
echo c0 > c0.c &&
git add c0.c &&
git commit -m c0 &&
git tag c0 &&
echo c1 > c1.c &&
git add c1.c &&
git commit -m c1 &&
git tag c1 &&
git reset --hard c0 &&
echo c2 > c2.c &&
git add c2.c &&
git commit -m c2 &&
git tag c2 &&
create_merge_msgs
'
test_expect_success 'merge c2 with a custom message' '
git reset --hard c1 &&
git merge -m "$(cat exp.subject)" c2 &&
git cat-file commit HEAD | sed -e "1,/^$/d" >actual &&
test_cmp exp.subject actual
'
test_done