From 957187d417c55654d7c45ae5d0e48fbf4e67a9a1 Mon Sep 17 00:00:00 2001
From: Andrew Murray <radarhere@gmail.com>
Date: Sat, 2 Jan 2016 12:27:40 +1100
Subject: [PATCH] Added TIFF IFD test

---
 Tests/test_file_tiff.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Tests/test_file_tiff.py b/Tests/test_file_tiff.py
index 26b6bd4c3..a58d33809 100644
--- a/Tests/test_file_tiff.py
+++ b/Tests/test_file_tiff.py
@@ -107,6 +107,11 @@ class TestFileTiff(PillowTestCase):
         self.assertRaises(SyntaxError,
                           lambda: TiffImagePlugin.TiffImageFile(invalid_file))
 
+        TiffImagePlugin.PREFIXES.append("\xff\xd8\xff\xe0")
+        self.assertRaises(SyntaxError,
+                          lambda: TiffImagePlugin.TiffImageFile(invalid_file))
+        TiffImagePlugin.PREFIXES.pop()
+
     def test_bad_exif(self):
         i = Image.open('Tests/images/hopper_bad_exif.jpg')
         try: