lib/cosmos/streams/template_stream_protocol.rb in cosmos-3.2.1 vs lib/cosmos/streams/template_stream_protocol.rb in cosmos-3.3.0

@@ -124,10 +124,10 @@
         response_regexp = Regexp.new(response_template)
 
         # Scan the response for the variables in brackets <VARIABLE>
         # Write the packet value with each of the values received
         response_values = response_string.scan(response_regexp)[0]
-        raise "Unexpected response received: #{response_string}" if response_values.length != response_item_names.length
+        raise "Unexpected response received: #{response_string}" if !response_values or (response_values.length != response_item_names.length)
         response_values.each_with_index do |value, i|
           result_packet.write(response_item_names[i], value)
         end
 
         @read_queue << result_packet