1 files changed, 12 insertions, 0 deletions

diff --git a/src/mailman_pgp/testing/pgp.py b/src/mailman_pgp/testing/pgp.py
index e16c95e..6b2bc48 100644
--- a/src/mailman_pgp/testing/pgp.py
+++ b/src/mailman_pgp/testing/pgp.py
@@ -168,3 +168,15 @@ class WrapperTestCase(TestCase):
             self.assertTrue(bool(sig))
         self.assertListEqual(list(decrypted_wrapped.get_signed()),
                              list(wrapped.get_payload()))
+
+    def decrypt_verify(self, message, decrypt_key, verify_key, valid):
+        wrapped = self.wrap(message)
+        decrypted = wrapped.decrypt(decrypt_key)
+        decrypted_wrapped = self.wrap(decrypted)
+
+        self.assertFalse(decrypted_wrapped.is_encrypted())
+        self.assertTrue(decrypted_wrapped.is_signed())
+
+        verification = decrypted_wrapped.verify(verify_key)
+        for sig in verification:
+            self.assertEqual(bool(sig), valid)