Rehabilitate test coverage in ussd and cic-notify

apps/cic-ussd/cic_ussd/cache.py

@@ -14,7 +14,7 @@ class Cache:
     store: Redis = None
 
 
-def cache_data(key: str, data: str):
+def cache_data(key: str, data: [bytes, float, int, str]):
     """
     :param key:
     :type key:

apps/cic-ussd/cic_ussd/db/models/account.py

@@ -63,10 +63,7 @@ class Account(SessionBase):
     def remove_guardian(self, phone_number: str):
         set_guardians = self.guardians.split(',')
         set_guardians.remove(phone_number)
-        if len(set_guardians) > 1:
-            self.guardians = ','.join(set_guardians)
-        else:
-            self.guardians = set_guardians[0]
+        self.guardians = ','.join(set_guardians)
 
     def get_guardians(self) -> list:
         return self.guardians.split(',') if self.guardians else []

apps/cic-ussd/cic_ussd/metadata/__init__.py

@@ -7,3 +7,4 @@ from .custom import CustomMetadata
 from .person import PersonMetadata
 from .phone import PhonePointerMetadata
 from .preferences import PreferencesMetadata
+from .tokens import TokenMetadata

apps/cic-ussd/cic_ussd/processor/menu.py

@@ -417,7 +417,7 @@ class MenuProcessor:
         preferred_language = get_cached_preferred_language(self.account.blockchain_address)
         if not preferred_language:
             preferred_language = i18n.config.get('fallback')
-        return translation_for(self.display_key,preferred_language,token_symbol=token_symbol)
+        return translation_for(self.display_key, preferred_language, token_symbol=token_symbol)
 
     def exit_successful_transaction(self):
         """

apps/cic-ussd/cic_ussd/state_machine/logic/pin_guard.py

@@ -87,7 +87,7 @@ def is_valid_guardian_addition(state_machine_data: Tuple[str, dict, Account, Ses
     guardianship = Guardianship()
     is_system_guardian = guardianship.is_system_guardian(phone_number)
     is_initiator = phone_number == account.phone_number
-    is_existent_guardian = phone_number in account.get_guardians()
+    is_existent_guardian = phone_number in account.get_guardians() or is_system_guardian
 
     failure_reason = ''
     if not is_valid_account: