#!/bin/sh
#
# Copyright (c) 2005 Johannes Schindelin
#

test_description='Test git rev-parse with different parent options'

. ./test-lib.sh
. ../t6000lib.sh # t6xxx specific functions

date >path0
git update-index --add path0
save_tag tree git write-tree
hide_error save_tag start unique_commit "start" tree
save_tag second unique_commit "second" tree -p start
hide_error save_tag start2 unique_commit "start2" tree
save_tag two_parents unique_commit "next" tree -p second -p start2
save_tag final unique_commit "final" tree -p two_parents

test_expect_success 'start is valid' 'git rev-parse start | grep "^[0-9a-f]\{40\}$"'
test_expect_success 'start^0' "test $(cat .git/refs/tags/start) = $(git rev-parse start^0)"
test_expect_success 'start^1 not valid' "if git rev-parse --verify start^1; then false; else :; fi"
test_expect_success 'second^1 = second^' "test $(git rev-parse second^1) = $(git rev-parse second^)"
test_expect_success 'final^1^1^1' "test $(git rev-parse start) = $(git rev-parse final^1^1^1)"
test_expect_success 'final^1^1^1 = final^^^' "test $(git rev-parse final^1^1^1) = $(git rev-parse final^^^)"
test_expect_success 'final^1^2' "test $(git rev-parse start2) = $(git rev-parse final^1^2)"
test_expect_success 'final^1^2 != final^1^1' "test $(git rev-parse final^1^2) != $(git rev-parse final^1^1)"
test_expect_success 'final^1^3 not valid' "if git rev-parse --verify final^1^3; then false; else :; fi"
test_expect_success '--verify start2^1' '! git rev-parse --verify start2^1'
test_expect_success '--verify start2^0' 'git rev-parse --verify start2^0'

test_expect_success 'repack for next test' 'git repack -a -d'
test_expect_success 'short SHA-1 works' '
        start=`git rev-parse --verify start` &&
        echo $start &&
        abbrv=`echo $start | sed s/.\$//` &&
        echo $abbrv &&
        abbrv=`git rev-parse --verify $abbrv` &&
        echo $abbrv &&
        test $start = $abbrv'

test_done