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path: root/t/t3409-rebase-preserve-merges.sh
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#!/bin/sh
#
# Copyright(C) 2008 Stephen Habermann & Andreas Ericsson
#
test_description='git rebase -p should preserve merges

Run "git rebase -p" and check that merges are properly carried along
'
. ./test-lib.sh

GIT_AUTHOR_EMAIL=bogus_email_address
export GIT_AUTHOR_EMAIL

# Clone 1 (trivial merge):
#
# A1--A2  <-- origin/master
#  \   \
#   B1--M  <-- topic
#    \
#     B2  <-- origin/topic
#
# Clone 2 (conflicting merge):
#
# A1--A2--B3   <-- origin/master
#  \       \
#   B1------M  <-- topic
#    \
#     B2       <-- origin/topic
#
# In both cases, 'topic' is rebased onto 'origin/topic'.

test_expect_success 'setup for merge-preserving rebase' \
	'echo First > A &&
	git add A &&
	git commit -m "Add A1" &&
	git checkout -b topic &&
	echo Second > B &&
	git add B &&
	git commit -m "Add B1" &&
	git checkout -f master &&
	echo Third >> A &&
	git commit -a -m "Modify A2" &&

	git clone ./. clone1 &&
	(cd clone1 &&
	git checkout -b topic origin/topic &&
	git merge origin/master
	) &&

	echo Fifth > B &&
	git add B &&
	git commit -m "Add different B" &&

	git clone ./. clone2 &&
	(
		cd clone2 &&
		git checkout -b topic origin/topic &&
		test_must_fail git merge origin/master &&
		echo Resolved >B &&
		git add B &&
		git commit -m "Merge origin/master into topic"
	) &&

	git checkout topic &&
	echo Fourth >> B &&
	git commit -a -m "Modify B2"
'

test_expect_success 'rebase -p fakes interactive rebase' '
	(
	cd clone1 &&
	git fetch &&
	git rebase -p origin/topic &&
	test 1 = $(git rev-list --all --pretty=oneline | grep "Modify A" | wc -l) &&
	test 1 = $(git rev-list --all --pretty=oneline | grep "Merge remote branch " | wc -l)
	)
'

test_expect_success '--continue works after a conflict' '
	(
	cd clone2 &&
	git fetch &&
	test_must_fail git rebase -p origin/topic &&
	test 2 = $(git ls-files B | wc -l) &&
	echo Resolved again > B &&
	test_must_fail git rebase --continue &&
	grep "^@@@ " .git/rebase-merge/patch &&
	git add B &&
	git rebase --continue &&
	test 1 = $(git rev-list --all --pretty=oneline | grep "Modify A" | wc -l) &&
	test 1 = $(git rev-list --all --pretty=oneline | grep "Add different" | wc -l) &&
	test 1 = $(git rev-list --all --pretty=oneline | grep "Merge origin" | wc -l)
	)
'

test_done