1 files changed, 105 insertions, 0 deletions
diff --git a/t/t6101-rev-parse-parents.sh b/t/t6101-rev-parse-parents.sh
new file mode 100755
index 0000000000..10b1452766
--- /dev/null
+++ b/t/t6101-rev-parse-parents.sh
@@ -0,0 +1,105 @@
+#!/bin/sh
+#
+# Copyright (c) 2005 Johannes Schindelin
+#
+
+test_description='Test git rev-parse with different parent options'
+
+. ./test-lib.sh
+
+test_cmp_rev_output () {
+	git rev-parse --verify "$1" >expect &&
+	eval "$2" >actual &&
+	test_cmp expect actual
+}
+
+test_expect_success 'setup' '
+	test_commit start &&
+	test_commit second &&
+	git checkout --orphan tmp &&
+	test_commit start2 &&
+	git checkout master &&
+	git merge -m next start2 &&
+	test_commit final &&
+
+	test_seq 40 |
+	while read i
+	do
+		git checkout --orphan "b$i" &&
+		test_tick &&
+		git commit --allow-empty -m "$i" &&
+		commit=$(git rev-parse --verify HEAD) &&
+		printf "$commit " >>.git/info/grafts
+	done
+'
+
+test_expect_success 'start is valid' '
+	git rev-parse start | grep "^[0-9a-f]\{40\}$"
+'
+
+test_expect_success 'start^0' '
+	test_cmp_rev_output tags/start "git rev-parse start^0"
+'
+
+test_expect_success 'start^1 not valid' '
+	test_must_fail git rev-parse --verify start^1
+'
+
+test_expect_success 'second^1 = second^' '
+	test_cmp_rev_output second^ "git rev-parse second^1"
+'
+
+test_expect_success 'final^1^1^1' '
+	test_cmp_rev_output start "git rev-parse final^1^1^1"
+'
+
+test_expect_success 'final^1^1^1 = final^^^' '
+	test_cmp_rev_output final^^^ "git rev-parse final^1^1^1"
+'
+
+test_expect_success 'final^1^2' '
+	test_cmp_rev_output start2 "git rev-parse final^1^2"
+'
+
+test_expect_success 'final^1^2 != final^1^1' '
+	test $(git rev-parse final^1^2) != $(git rev-parse final^1^1)
+'
+
+test_expect_success 'final^1^3 not valid' '
+	test_must_fail git rev-parse --verify final^1^3
+'
+
+test_expect_success '--verify start2^1' '
+	test_must_fail git rev-parse --verify start2^1
+'
+
+test_expect_success '--verify start2^0' '
+	git rev-parse --verify start2^0
+'
+
+test_expect_success 'final^1^@ = final^1^1 final^1^2' '
+	git rev-parse final^1^1 final^1^2 >expect &&
+	git rev-parse final^1^@ >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'final^1^! = final^1 ^final^1^1 ^final^1^2' '
+	git rev-parse final^1 ^final^1^1 ^final^1^2 >expect &&
+	git rev-parse final^1^! >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success 'large graft octopus' '
+	test_cmp_rev_output b31 "git rev-parse --verify b1^30"
+'
+
+test_expect_success 'repack for next test' '
+	git repack -a -d
+'
+
+test_expect_success 'short SHA-1 works' '
+	start=$(git rev-parse --verify start) &&
+	test_cmp_rev_output start "git rev-parse ${start%?}"
+'
+
+test_done