+#!/bin/sh
+
+test_description='apply same filename'
+
+. ./test-lib.sh
+
+test_expect_success 'setup' '
+
+ mkdir -p some/sub/dir &&
+ echo Hello > some/sub/dir/file &&
+ git add some/sub/dir/file
+
+'
+
+cat > patch << EOF
+diff a/bla/blub/dir/file b/bla/blub/dir/file
+--- a/bla/blub/dir/file
++++ b/bla/blub/dir/file
+@@ -1,1 +1,1 @@
+-Hello
++Bello
+EOF
+
+test_expect_success 'apply --root -p --index' '
+
+ git apply --root=some/sub -p3 --index patch &&
+ test Bello = $(git show :some/sub/dir/file) &&
+ test Bello = $(cat some/sub/dir/file)
+
+'
+
+test_done