src: do not save c_str of a temp string
file_path.string()
creates a temporary string object, we should not store its c_str()
before storing the string object first.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
file_path.string()
creates a temporary string object, we should not store its c_str()
before storing the string object first.