lib/floe/workflow/path.rb in floe-0.5.0 vs lib/floe/workflow/path.rb in floe-0.6.0

@@ -9,9 +9,12 @@
         end
       end
 
       def initialize(payload)
         @payload = payload
+
+        raise Floe::InvalidWorkflowError, "Path [#{payload}] must be a string" if payload.nil? || !payload.kind_of?(String)
+        raise Floe::InvalidWorkflowError, "Path [#{payload}] must start with \"$\"" if payload[0] != "$"
       end
 
       def value(context, input = {})
         obj, path =
           if payload.start_with?("$$")