From e0d56e2a6e5a4be6b15b12835a8b9f64e5792cd4 Mon Sep 17 00:00:00 2001
From: Tom Price <tom@codedinternet.com>
Date: Thu, 31 Mar 2016 00:08:56 +0100
Subject: [PATCH] Add failing test for markdown processing none

---
 RIGS/test_unit.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/RIGS/test_unit.py b/RIGS/test_unit.py
index f031452b..128fb3b8 100644
--- a/RIGS/test_unit.py
+++ b/RIGS/test_unit.py
@@ -206,3 +206,7 @@ which you wish to be displayed literally, ex.: \`foo\`, \*bar\*, etc.
         # By the time we have a PDF it should be larger than the original by some margin
         # RML hard fails if something doesn't work
         self.assertGreater(len(response.content), len(self.markdown))
+
+    def test_nonetype(self):
+        html = markdown_filter(None)
+        self.assertIsNone(html)