3 files changed, 31 insertions, 0 deletions
diff --git a/python/tests/group_session_test.py b/python/tests/group_session_test.py
index c17e84f..4632a60 100644
--- a/python/tests/group_session_test.py
+++ b/python/tests/group_session_test.py
@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 import pytest
 
 from olm import InboundGroupSession, OlmGroupSessionError, OutboundGroupSession
@@ -112,3 +113,16 @@ class TestClass(object):
         outbound = OutboundGroupSession()
         inbound = InboundGroupSession(outbound.session_key)
         del inbound
+
+    def test_invalid_unicode_decrypt(self):
+        outbound = OutboundGroupSession()
+        inbound = InboundGroupSession(outbound.session_key)
+
+        text = outbound.encrypt(b"\xed")
+        plaintext, _ = inbound.decrypt(text)
+
+        print(plaintext)
+        assert plaintext == u"�"
+
+        plaintext, _ = inbound.decrypt(text, "ignore")
+        assert plaintext == ""
diff --git a/python/tests/pk_test.py b/python/tests/pk_test.py
index fe3b4b6..ef87465 100644
--- a/python/tests/pk_test.py
+++ b/python/tests/pk_test.py
@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 import pytest
 
 from olm import (PkDecryption, PkDecryptionError, PkEncryption, PkSigning,
@@ -55,3 +56,10 @@ class TestClass(object):
         message = "This statement is true"
         signature = signing.sign(message)
         ed25519_verify(signing.public_key, message, signature)
+
+    def test_invalid_unicode_decrypt(self):
+        decryption = PkDecryption()
+        encryption = PkEncryption(decryption.public_key)
+        message = encryption.encrypt(b"\xed")
+        plaintext = decryption.decrypt(message)
+        assert plaintext == u"�"
diff --git a/python/tests/session_test.py b/python/tests/session_test.py
index ab1c38b..b856585 100644
--- a/python/tests/session_test.py
+++ b/python/tests/session_test.py
@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 import pytest
 
 from olm import (Account, InboundSession, OlmMessage, OlmPreKeyMessage,
@@ -141,3 +142,11 @@ class TestClass(object):
 
         new_message = new_session.encrypt(plaintext)
         assert bob_session.matches(new_message) is False
+
+    def test_invalid_unicode_decrypt(self):
+        alice, bob, session = self._create_session()
+        message = session.encrypt(b"\xed")
+
+        bob_session = InboundSession(bob, message)
+        plaintext = bob_session.decrypt(message)
+        assert plaintext == u"�"