1 files changed, 59 insertions, 0 deletions
diff --git a/t/t5400-send-pack.sh b/t/t5400-send-pack.sh
new file mode 100755
index 0000000000..7fc3bd7d3e
--- /dev/null
+++ b/t/t5400-send-pack.sh
@@ -0,0 +1,59 @@
+#!/bin/sh
+#
+# Copyright (c) 2005 Junio C Hamano
+#
+
+test_description='See why rewinding head breaks send-pack
+
+'
+. ./test-lib.sh
+
+touch cpio-test
+test_expect_success 'working cpio' 'echo cpio-test | cpio -o > /dev/null'
+
+cnt='1'
+test_expect_success setup '
+	tree=$(git-write-tree) &&
+	commit=$(echo "Commit #0" | git-commit-tree $tree) &&
+	zero=$commit &&
+	parent=$zero &&
+	for i in $cnt
+	do
+	    sleep 1 &&
+	    commit=$(echo "Commit #$i" | git-commit-tree $tree -p $parent) &&
+	    parent=$commit || return 1
+	done &&
+	git-update-ref HEAD "$commit" &&
+	git-clone -l ./. victim &&
+	cd victim &&
+	git-log &&
+	cd .. &&
+	git-update-ref HEAD "$zero" &&
+	parent=$zero &&
+	for i in $cnt
+	do
+	    sleep 1 &&
+	    commit=$(echo "Rebase #$i" | git-commit-tree $tree -p $parent) &&
+	    parent=$commit || return 1
+	done &&
+	git-update-ref HEAD "$commit" &&
+	echo Rebase &&
+	git-log'
+
+test_expect_success \
+        'pushing rewound head should not barf but require --force' ' 
+	# should not fail but refuse to update.
+	git-send-pack ./victim/.git/ master &&
+	if cmp victim/.git/refs/heads/master .git/refs/heads/master
+	then
+		# should have been left as it was!
+		false
+	else
+		true
+	fi &&
+	# this should update
+	git-send-pack --force ./victim/.git/ master &&
+	cmp victim/.git/refs/heads/master .git/refs/heads/master
+'
+
+test_done