SEBA-405 Cleanup synchronizer imports of model_accessor to globals;
Move mock modelaccessor to /tmp;
Easier mock modelaccessor configuration

Change-Id: I67a17b9a72ea69f61d92206f1b520a11c2f18d80
diff --git a/lib/xos-synchronizer/tests/steps/sync_roles.py b/lib/xos-synchronizer/tests/steps/sync_roles.py
index e8b1364..7298a64 100644
--- a/lib/xos-synchronizer/tests/steps/sync_roles.py
+++ b/lib/xos-synchronizer/tests/steps/sync_roles.py
@@ -20,8 +20,9 @@
 
 
 class SyncRoles(SyncStep):
-    provides = [Role]
     requested_interval = 0
+
+    # This observes is intentionally a list of three classes, to test steps where observes is a list of classes.
     observes = [SiteRole, SliceRole, ControllerRole]
 
     def sync_record(self, role):