Add missing test case.

Author: abdullahselek

tests/test_authenticator.py

@@ -23,6 +23,11 @@ def test_wrong_initiation(self):
 
         self.assertTrue('You must set a secret of minimum 8 characters!' in str(context.exception))
 
+        with self.assertRaises(Exception) as context:
+            Authenticator('ĀƯŤĤËŊŦĩÇÁƮŏƦ')
+
+        self.assertTrue('You must set an ascii str variable as secret!' in str(context.exception))
+
         with self.assertRaises(Exception) as context:
             Authenticator(lambda: None)