Merge branch 'feature/root-wo-rename-warning' into develop

 [SVCS-397]
 Closes: #305

waterbutler/server/api/v1/provider/movecopy.py

@@ -107,11 +107,16 @@ async def move_or_copy(self):
             if path is None:
                 raise exceptions.InvalidParameters('"path" field is required for moves or copies')
             if not path.endswith('/'):
-                raise exceptions.InvalidParameters('"path" field requires a trailing slash to '
-                                                   'indicate it is a folder')
+                raise exceptions.InvalidParameters(
+                    '"path" field requires a trailing slash to indicate it is a folder'
+                )
 
             # TODO optimize for same provider and resource
 
+            # for copy action, `auth_action` is the same as `provider_action`
+            if auth_action == 'copy' and self.path.is_root and not self.json.get('rename'):
+                raise exceptions.InvalidParameters('"rename" field is required for copying root')
+
             # Note: attached to self so that _send_hook has access to these
             self.dest_resource = self.json.get('resource', self.resource)
             self.dest_auth = await auth_handler.get(