Tests for SGI Overruns

Tests/test_sgi_crash.py

@@ -0,0 +1,15 @@
+#!/usr/bin/env python
+from .helper import PillowTestCase
+from PIL import Image
+
+repro = ('Tests/images/sgi_overrun_expandrowF04.bin',
+         'Tests/images/sgi_crash.bin',
+         )
+
+class TestSgiCrashes(PillowTestCase):
+    def test_crashes(self):
+        for path in repro:
+            with open(path, 'rb') as f:
+                im = Image.open(f)
+                with self.assertRaises(IOError):
+                    im.load()