#!/bin/sh
#
# Copyright (c) 2010 Bo Yang
#

test_description='Test --follow should always find copies hard in git log.

'

. ./test-lib.sh
. "$TEST_DIRECTORY"/lib-diff.sh

echo >path0 'Line 1
Line 2
Line 3
'

test_expect_success 'add a file path0 and commit.' '
	git add path0 &&
	git commit -m "Add path0"
'

echo >path0 'New line 1
New line 2
New line 3
'
test_expect_success 'Change path0.' '
	git add path0 &&
	git commit -m "Change path0"
'

cat <path0 >path1
test_expect_success 'copy path0 to path1.' '
	git add path1 &&
	git commit -m "Copy path1 from path0"
'

test_expect_success 'find the copy path0 -> path1 harder' '
	git log --follow --name-status --pretty="format:%s"  path1 > current
'

cat >expected <<\EOF
Copy path1 from path0
C100	path0	path1

Change path0
M	path0

Add path0
A	path0
EOF

test_expect_success 'validate the output.' '
	compare_diff_patch current expected
'

test_expect_success 'log --follow -B does not BUG' '
	git switch --orphan break_and_follow_are_icky_so_use_both &&

	test_seq 1 127 >numbers &&
	git add numbers &&
	git commit -m "numbers" &&

	printf "%s\n" A B C D E F G H I J K L M N O Q R S T U V W X Y Z >pool &&
	echo changed >numbers &&
	git add pool numbers &&
	git commit -m "pool" &&

	git log -1 -B --raw --follow -- "p*"
'

test_expect_success 'log --follow -B does not die or use uninitialized memory' '
	printf "%s\n" A B C D E F G H I J K L M N O P Q R S T U V W X Y Z >z &&
	git add z &&
	git commit -m "Initial" &&

	test_seq 1 130 >z &&
	echo lame >somefile &&
	git add z somefile &&
	git commit -m "Rewrite z, introduce lame somefile" &&

	echo Content >somefile &&
	git add somefile &&
	git commit -m "Rewrite somefile" &&

	git log -B --follow somefile
'

test_done