diff --git a/test/test_model/test_cookie.py b/test/test_model/test_cookie.py
index 7747723..9a311b2 100644
--- a/test/test_model/test_cookie.py
+++ b/test/test_model/test_cookie.py
@@ -59,6 +59,8 @@ def testMultipleCommits(self):
 
 
 class SecureCookieTest(unittest.TestCase):
+    """This class is responsible for testing default CRUD behaviour on cookies."""
+
     def setUp(self) -> None:
         self.connection = CookieConnection()
         self.secure_cookie = SecureCookie(self.connection)
@@ -178,6 +180,12 @@ def testDeprecatedHasher(self):
             secure_cookie.cookies["secureCookie"],
         )
 
+    def testUnsupportedHash(self):
+        """Validate that a cookie is invalidated when an unsupported hash is used."""
+        unsupported_cookie = "unsupported+hash+data"
+        self.secure_cookie.cookies['secureCookie'] = unsupported_cookie
+        self.assertEqual(self.secure_cookie.rawcookie, None)
+
 
 if __name__ == "__main__":
-    unittest.main(testRunner=unittest.TextTestRunner(verbosity=2))
+    unittest.main(testRunner=unittest.TextTestRunner(verbosity=2))
\ No newline at end of file