1 files changed, 112 insertions, 0 deletions
diff --git a/t/t5613-info-alternate.sh b/t/t5613-info-alternate.sh
new file mode 100755
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+++ b/t/t5613-info-alternate.sh
@@ -0,0 +1,112 @@
+#!/bin/sh
+#
+# Copyright (C) 2006 Martin Waitz <tali@admingilde.org>
+#
+
+test_description='test transitive info/alternate entries'
+. ./test-lib.sh
+
+# test that a file is not reachable in the current repository
+# but that it is after creating a info/alternate entry
+reachable_via() {
+	alternate="$1"
+	file="$2"
+	if git cat-file -e "HEAD:$file"; then return 1; fi
+	echo "$alternate" >> .git/objects/info/alternate
+	git cat-file -e "HEAD:$file"
+}
+
+test_valid_repo() {
+	git fsck --full > fsck.log &&
+	test_line_count = 0 fsck.log
+}
+
+base_dir=$(pwd)
+
+test_expect_success 'preparing first repository' \
+'test_create_repo A && cd A &&
+echo "Hello World" > file1 &&
+git add file1 &&
+git commit -m "Initial commit" file1 &&
+git repack -a -d &&
+git prune'
+
+cd "$base_dir"
+
+test_expect_success 'preparing second repository' \
+'git clone -l -s A B && cd B &&
+echo "foo bar" > file2 &&
+git add file2 &&
+git commit -m "next commit" file2 &&
+git repack -a -d -l &&
+git prune'
+
+cd "$base_dir"
+
+test_expect_success 'preparing third repository' \
+'git clone -l -s B C && cd C &&
+echo "Goodbye, cruel world" > file3 &&
+git add file3 &&
+git commit -m "one more" file3 &&
+git repack -a -d -l &&
+git prune'
+
+cd "$base_dir"
+
+test_expect_success 'creating too deep nesting' \
+'git clone -l -s C D &&
+git clone -l -s D E &&
+git clone -l -s E F &&
+git clone -l -s F G &&
+git clone --bare -l -s G H'
+
+test_expect_success 'invalidity of deepest repository' \
+'cd H && {
+	test_valid_repo
+	test $? -ne 0
+}'
+
+cd "$base_dir"
+
+test_expect_success 'validity of third repository' \
+'cd C &&
+test_valid_repo'
+
+cd "$base_dir"
+
+test_expect_success 'validity of fourth repository' \
+'cd D &&
+test_valid_repo'
+
+cd "$base_dir"
+
+test_expect_success 'breaking of loops' \
+'echo "$base_dir"/B/.git/objects >> "$base_dir"/A/.git/objects/info/alternates&&
+cd C &&
+test_valid_repo'
+
+cd "$base_dir"
+
+test_expect_success 'that info/alternates is necessary' \
+'cd C &&
+rm -f .git/objects/info/alternates &&
+! (test_valid_repo)'
+
+cd "$base_dir"
+
+test_expect_success 'that relative alternate is possible for current dir' \
+'cd C &&
+echo "../../../B/.git/objects" > .git/objects/info/alternates &&
+test_valid_repo'
+
+cd "$base_dir"
+
+test_expect_success \
+    'that relative alternate is only possible for current dir' '
+    cd D &&
+    ! (test_valid_repo)
+'
+
+cd "$base_dir"
+
+test_done