Added another test (#9862)

We only have one for encryptor
pyca · Nov 11, 2023 · 1e7136b · 1e7136b
1 parent 4c5d2a4
commit 1e7136b
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/tests/hazmat/primitives/utils.py b/tests/hazmat/primitives/utils.py
@@ -285,6 +285,8 @@ def aead_exception_test(backend, cipher_factory, mode_factory):
     )
     decryptor = cipher.decryptor()
     decryptor.update(b"a" * 16)
+    with pytest.raises(AlreadyUpdated):
+        decryptor.authenticate_additional_data(b"b" * 16)
     with pytest.raises(AttributeError):
         decryptor.tag  # type: ignore[attr-defined]