diff --git a/python/online/fxreader/pr34/tests/test_crypto.py b/python/online/fxreader/pr34/tests/test_crypto.py
index ece17b4..1c39c70 100644
--- a/python/online/fxreader/pr34/tests/test_crypto.py
+++ b/python/online/fxreader/pr34/tests/test_crypto.py
@@ -27,3 +27,10 @@ class TestCrypto(unittest.TestCase):
         )
 
         self.assertTrue(check_res)
+
+        self.assertFalse(
+            crypto.PasswordUtils.secret_check(
+                secret + 'asdfasdfsdf',
+                *hash_res,
+            )
+        )