#!/bin/sh
#
# Copyright (c) 2006 Junio C Hamano
#

test_description='git rebase --merge test'

. ./test-lib.sh

if test "$no_python"; then
	echo "Skipping: no python => no recursive merge"
	test_done
	exit 0
fi

T="A quick brown fox
jumps over the lazy dog."
for i in 1 2 3 4 5 6 7 8 9 10
do
	echo "$i $T"
done >original

test_expect_success setup '
	git add original &&
	git commit -m"initial" &&
	git branch side &&
	echo "11 $T" >>original &&
	git commit -a -m"master updates a bit." &&

	echo "12 $T" >>original &&
	git commit -a -m"master updates a bit more." &&

	git checkout side &&
	(echo "0 $T" ; cat original) >renamed &&
	git add renamed &&
	git update-index --force-remove original &&
	git commit -a -m"side renames and edits." &&

	tr "[a-z]" "[A-Z]" <original >newfile &&
	git add newfile &&
	git commit -a -m"side edits further." &&

	tr "[a-m]" "[A-M]" <original >newfile &&
	rm -f original &&
	git commit -a -m"side edits once again." &&

	git branch test-rebase side &&
	git branch test-rebase-pick side &&
	git branch test-reference-pick side &&
	git checkout -b test-merge side
'

test_expect_success 'reference merge' '
	git merge -s recursive "reference merge" HEAD master
'

test_expect_success rebase '
	git checkout test-rebase &&
	git rebase --merge master
'

test_expect_success 'merge and rebase should match' '
	git diff-tree -r test-rebase test-merge >difference &&
	if test -s difference
	then
		cat difference
		(exit 1)
	else
		echo happy
	fi
'

test_expect_success 'rebase the other way' '
	git reset --hard master &&
	git rebase --merge side
'

test_expect_success 'merge and rebase should match' '
	git diff-tree -r test-rebase test-merge >difference &&
	if test -s difference
	then
		cat difference
		(exit 1)
	else
		echo happy
	fi
'

test_expect_success 'picking rebase' '
	git reset --hard side &&
	git rebase --merge --onto master side^^ &&
	mb=$(git merge-base master HEAD) &&
	if test "$mb" = "$(git rev-parse master)"
	then
		echo happy
	else
		git show-branch
		(exit 1)
	fi &&
	f=$(git diff-tree --name-only HEAD^ HEAD) &&
	g=$(git diff-tree --name-only HEAD^^ HEAD^) &&
	case "$f,$g" in
	newfile,newfile)
		echo happy ;;
	*)
		echo "$f"
		echo "$g"
		(exit 1)
	esac
'

test_done