fix(backups): make sure location and credentials get properly passed around

selfprivacy_api/backup/providers/provider.py

@@ -12,6 +12,7 @@ class AbstractBackupProvider(ABC):
     def backuper(self) -> AbstractBackuper:
         raise NotImplementedError
 
-    def __init__(self, login="", key=""):
+    def __init__(self, login="", key="", location=""):
+        self.backuper.set_creds(login, key, location)
         self.login = login
         self.key = key

tests/test_graphql/test_backup.py

@@ -109,6 +109,9 @@ def test_config_load(generic_userdata):
     assert provider.login == "ID"
     assert provider.key == "KEY"
 
+    assert provider.backuper.account == "ID"
+    assert provider.backuper.key == "KEY"
+
 
 def test_select_backend():
     provider = providers.get_provider(BackupProvider.BACKBLAZE)