Added warning test for image with last truncated tile, #77

glymur/test/test_format_corpus.py

@@ -66,5 +66,20 @@ class TestSuite(unittest.TestCase):
         with self.assertRaises(OSError):
             j2k.read(rlevel=-1)
 
+    def test_balloon_trunc3(self):
+        # Most of last tile is missing.
+        jfile = os.path.join(data_root,
+                             'jp2k-test/byteCorruption/balloon_trunc3.jp2')
+        j2k = Jp2k(jfile)
+        with self.assertWarns(UserWarning):
+            c = j2k.get_codestream(header_only=False)
+        
+        # The last segment is truncated, so there should not be an EOC marker.
+        self.assertNotEqual(c.segment[-1].marker_id, 'EOC')
+
+        # Should error out, it does not.
+        #with self.assertRaises(OSError):
+        #    j2k.read(rlevel=-1)
+
 if __name__ == "__main__":
     unittest.main()