1 files changed, 127 insertions, 0 deletions
diff --git a/t/t6001-rev-list-graft.sh b/t/t6001-rev-list-graft.sh
new file mode 100755
index 0000000..16635ec
--- /dev/null
+++ b/t/t6001-rev-list-graft.sh
@@ -0,0 +1,127 @@
+#!/bin/sh
+
+test_description='Revision traversal vs grafts and path limiter'
+
+GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
+export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
+
+. ./test-lib.sh
+
+test_expect_success setup '
+	mkdir subdir &&
+	echo >fileA fileA &&
+	echo >subdir/fileB fileB &&
+	git add fileA subdir/fileB &&
+	git commit -a -m "Initial in one history." &&
+	A0=$(git rev-parse --verify HEAD) &&
+
+	echo >fileA fileA modified &&
+	git commit -a -m "Second in one history." &&
+	A1=$(git rev-parse --verify HEAD) &&
+
+	echo >subdir/fileB fileB modified &&
+	git commit -a -m "Third in one history." &&
+	A2=$(git rev-parse --verify HEAD) &&
+
+	git update-ref -d refs/heads/main &&
+	rm -f .git/index &&
+
+	echo >fileA fileA again &&
+	echo >subdir/fileB fileB again &&
+	git add fileA subdir/fileB &&
+	git commit -a -m "Initial in alternate history." &&
+	B0=$(git rev-parse --verify HEAD) &&
+
+	echo >fileA fileA modified in alternate history &&
+	git commit -a -m "Second in alternate history." &&
+	B1=$(git rev-parse --verify HEAD) &&
+
+	echo >subdir/fileB fileB modified in alternate history &&
+	git commit -a -m "Third in alternate history." &&
+	B2=$(git rev-parse --verify HEAD) &&
+	: done
+'
+
+check () {
+	type=$1
+	shift
+
+	arg=
+	which=arg
+	rm -f test.expect
+	for a
+	do
+		if test "z$a" = z--
+		then
+			which=expect
+			child=
+			continue
+		fi
+		if test "$which" = arg
+		then
+			arg="$arg$a "
+			continue
+		fi
+		if test "$type" = basic
+		then
+			echo "$a"
+		else
+			if test "z$child" != z
+			then
+				echo "$child $a"
+			fi
+			child="$a"
+		fi
+	done >test.expect
+	if test "$type" != basic && test "z$child" != z
+	then
+		echo >>test.expect $child
+	fi
+	if test $type = basic
+	then
+		git rev-list $arg >test.actual
+	elif test $type = parents
+	then
+		git rev-list --parents $arg >test.actual
+	elif test $type = parents-raw
+	then
+		git rev-list --parents --pretty=raw $arg |
+		sed -n -e 's/^commit //p' >test.actual
+	fi
+	test_cmp test.expect test.actual
+}
+
+for type in basic parents parents-raw
+do
+	test_expect_success 'without grafts' "
+		rm -f .git/info/grafts &&
+		check $type $B2 -- $B2 $B1 $B0
+	"
+
+	test_expect_success 'with grafts' "
+		mkdir -p .git/info &&
+		echo '$B0 $A2' >.git/info/grafts &&
+		check $type $B2 -- $B2 $B1 $B0 $A2 $A1 $A0
+	"
+
+	test_expect_success 'without grafts, with pathlimit' "
+		rm -f .git/info/grafts &&
+		check $type $B2 subdir -- $B2 $B0
+	"
+
+	test_expect_success 'with grafts, with pathlimit' "
+		echo '$B0 $A2' >.git/info/grafts &&
+		check $type $B2 subdir -- $B2 $B0 $A2 $A0
+	"
+
+done
+
+test_expect_success 'show advice that grafts are deprecated' '
+	git show HEAD 2>err &&
+	test_i18ngrep "git replace" err &&
+	test_config advice.graftFileDeprecated false &&
+	git show HEAD 2>err &&
+	test_i18ngrep ! "git replace" err
+'
+
+test_done