CH-240 fix unit tests

Author: filippomc

libraries/cloudharness-common/cloudharness/utils/config.py

@@ -70,7 +70,7 @@ def get_registry_name(cls):
 
     @classmethod
     def get_registry_secret(cls):
-        return cls.get_configuration()['registry']['secret']['name']
+        return cls.get_configuration()['registry'].get('secret', {}).get('name', '')
 
     @classmethod
     def is_secured(cls):

libraries/cloudharness-common/tests/values.yaml

@@ -7,7 +7,7 @@ namespace: ch
 mainapp: accounts
 registry:
   name: ''
-  secret: ''
+  secret: {}
 tag: latest
 apps:
   volumemanager: