Use Forwardable in Biju::Modem

lib/biju/hayes.rb

@@ -21,7 +21,8 @@ module Biju
       full_command = [command, (command_args.empty? ? nil : command_args)]
         .compact.join('=')
 
-      answer = write(full_command)
+      modem.write(full_command + "\r\n")
+      answer = hayes_to_obj(modem.wait)
 
       return block.call(answer) if block_given?
       answer
@@ -75,16 +76,13 @@ module Biju
 
     def send(sms, options = {})
       at_command('+CMGS', sms.phone_number)
+
       write("#{sms.message}#{26.chr}")
+      hayes_to_obj(modem.wait)
     end
 
     private
 
-    def write(text)
-      modem.write(text)
-      hayes_to_obj(modem.wait_answer)
-    end
-
     def hayes_to_obj(str)
       ATTransform.new.apply(ATParser.new.parse(str))
     end

lib/biju/modem.rb

@@ -1,7 +1,10 @@
 require 'serialport'
+require 'forwardable'
 
 module Biju
   class Modem
+    extend Forwardable
+
     DEFAULT_OPTIONS = { baud: 9600, data_bits: 8,
                         stop_bits: 1, parity: SerialPort::NONE }
 
@@ -16,16 +19,9 @@ module Biju
       @connection = SerialPort.new(port, DEFAULT_OPTIONS.merge!(options))
     end
 
-    # Close the serial connection.
-    def close
-      connection.close
-    end
+    def_delegators :connection, :close, :write
 
-    def write(text)
-      connection.write(text + "\r")
-    end
-
-    def wait_answer
+    def wait
       buffer = ''
       while IO.select([connection], [], [], 0.25)
         buffer << connection.getc.chr