Add missing test file

diff --git a/rtest/graphs/ps_user_shapes.dot b/rtest/graphs/ps_user_shapes.dot
new file mode 100644 (file)
index 0000000..3383f7f
--- /dev/null
+++ b/rtest/graphs/ps_user_shapes.dot
@@ -0,0 +1,3 @@
+digraph G {
+  n [label=""]
+}