1 files changed, 15 insertions, 4 deletions
diff --git a/tests/test_rfc3565.py b/tests/test_rfc3565.py
index 99cb567..f69e392 100644
--- a/tests/test_rfc3565.py
+++ b/tests/test_rfc3565.py
@@ -11,6 +11,8 @@ import sys
 from pyasn1.codec.der import decoder as der_decoder
 from pyasn1.codec.der import encoder as der_encoder
 
+from pyasn1.type import univ
+
 from pyasn1_modules import pem
 from pyasn1_modules import rfc3565
 
@@ -50,11 +52,20 @@ class AESCBCTestCase(unittest.TestCase):
         assert asn1Object[1].isValue
         assert der_encoder.encode(asn1Object) == substrate
 
+    def testOpenTypes(self):
+        substrate = pem.readBase64fromText(self.aes_alg_id_pem_text)
+        asn1Object, rest = der_decoder.decode(substrate,
+            asn1Spec=self.asn1Spec,
+            decodeOpenTypes=True)
+        assert not rest
+        assert asn1Object.prettyPrint()
+        assert asn1Object[0] == rfc3565.id_aes256_CBC
+        aes_iv = univ.OctetString(hexValue='108996ba850e3f0339993bb5878a0e37')
+        assert asn1Object[1] == aes_iv
+        assert der_encoder.encode(asn1Object) == substrate
+
 
 suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
 
 if __name__ == '__main__':
-    import sys
-
-    result = unittest.TextTestRunner(verbosity=2).run(suite)
-    sys.exit(not result.wasSuccessful())
+    unittest.TextTestRunner(verbosity=2).run(suite)