[Edit] Add tests for updated capabilities

Add tests for capabilities which have been updated to work
when only a model (and not whole objects) are cached; that
change was introduced to prevent misbehavior of the Remove
action in Edit mode, WTD-473.

platform/commonUI/edit/src/capabilities/EditableLookupCapability.js

@@ -89,7 +89,7 @@ define(
             }
 
             // Wrap all methods; return only editable domain objects.
-            Object.keys(contextCapability).forEach(wrapFunction);
+            Object.keys(contextCapability).forEach(wrapMethod);
 
             return capability;
         };