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#!/bin/sh

test_description='test @{-N} syntax'

. ./test-lib.sh


make_commit () {
	echo "$1" > "$1" &&
	git add "$1" &&
	git commit -m "$1"
}


test_expect_success 'setup' '

	make_commit 1 &&
	git branch side &&
	make_commit 2 &&
	make_commit 3 &&
	git checkout side &&
	make_commit 4 &&
	git merge main &&
	git checkout main

'

# 1 -- 2 -- 3 main
#  \         \
#   \         \
#    --- 4 --- 5 side
#
# and 'side' should be the last branch

test_expect_success '@{-1} works' '
	test_cmp_rev side @{-1}
'

test_expect_success '@{-1}~2 works' '
	test_cmp_rev side~2 @{-1}~2
'

test_expect_success '@{-1}^2 works' '
	test_cmp_rev side^2 @{-1}^2
'

test_expect_success '@{-1}@{1} works' '
	test_cmp_rev side@{1} @{-1}@{1}
'

test_expect_success '@{-2} works' '
	test_cmp_rev main @{-2}
'

test_expect_success '@{-3} fails' '
	test_must_fail git rev-parse @{-3}
'

test_done


debug log:

solving a64cd4ce14 ...
found a64cd4ce14 in https://public-inbox.org/git/830130fa9fff3bf39e9f5b0360160e9ff787deec.1605221038.git.gitgitgadget@gmail.com/ ||
	https://public-inbox.org/git/b8fa037791683b50c3efb01aa6ac0d3f7b888a2b.1605629548.git.gitgitgadget@gmail.com/
found 4969edb314 in https://80x24.org/mirrors/git.git
preparing index
index prepared:
100755 4969edb31441c81cf2e63385d07d780a52faa53b	t/t1505-rev-parse-last.sh

applying [1/2] https://public-inbox.org/git/830130fa9fff3bf39e9f5b0360160e9ff787deec.1605221038.git.gitgitgadget@gmail.com/
diff --git a/t/t1505-rev-parse-last.sh b/t/t1505-rev-parse-last.sh
index 4969edb314..a64cd4ce14 100755

Checking patch t/t1505-rev-parse-last.sh...
Applied patch t/t1505-rev-parse-last.sh cleanly.

skipping https://public-inbox.org/git/b8fa037791683b50c3efb01aa6ac0d3f7b888a2b.1605629548.git.gitgitgadget@gmail.com/ for a64cd4ce14
index at:
100755 a64cd4ce14c0fdbed77488984422ec823f27b0d1	t/t1505-rev-parse-last.sh

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