added integration test of drawer in features as an example

Rakefile

@@ -10,7 +10,7 @@ desc 'Running all unit tests'
 task :default => :test
 
 desc "run feature tests"
-Cucumber::Rake::Task.new(:features => :test) do |t|
+Cucumber::Rake::Task.new(:features => :deploy) do |t|
   t.cucumber_opts = "--format pretty"
 end
 
@@ -26,9 +26,16 @@ task :coverage do
    system("#{rcov} --html test/*test.rb")
 end
 
+desc 'run commands'
+task :run_commands => :deploy do
+  require 'lib/command_processor'
+  CommandProcessor.client.test
+end
+
 desc 'deploy code to machine'
-task :deploy do
+task :deploy => :test do
   deploy_code
+  sleep(1)
 end
 
 PACKAGE = 'controlcode.pkg'

features/deliver_can.feature

@@ -3,7 +3,7 @@ Feature:
   I want have a can of soda delivered
   So that i can fix my thirst
 
-  Scenario: Deliver for free
-    Given a machine with cola and sprite
-    When I choos cola
-    Then A can of cola is delivered
+  Scenario: Drop a can (to show how you use the features remotely)
+    Given a machine 
+    When drawer 0 drops a can
+    Then it is received by the bin

features/step_definitions/deliver_can_steps.rb

@@ -0,0 +1,17 @@
+require 'command_processor'
+require 'test/unit/assertions'
+include Test::Unit::Assertions
+Given /^a machine$/ do
+  @machine = CommandProcessor.client
+end
+
+When /^drawer (\d+) drops a can$/ do |arg1|
+  @machine.clear_bin_events
+  @machine.drop_can_from_drawer(arg1.to_i)
+end
+
+Then /^it is received by the bin$/ do
+  sleep(3)
+  assert @machine.bin_has_received_something
+end
+

lib/command_processor.rb

@@ -0,0 +1,13 @@
+require 'drb'
+module CommandProcessor
+  URI = "druby://localhost:14567"
+
+  def self.run_server(commands)
+    DRb.start_service(URI,commands)
+  end
+
+  def self.client
+    DRbObject.new(nil, URI)
+  end
+end
+

lib/control/remote_commands.rb

@@ -0,0 +1,23 @@
+require 'devices'
+require 'device_wrappers'
+module Control
+
+  class RemoteCommands
+    include VMLog
+    def test
+      log "works"
+    end
+
+    def clear_bin_events
+      @bin = PhyscalBin.new
+    end
+
+    def drop_can_from_drawer(drawer)
+      PhysicalDrawer.new(drawer).drop_can
+    end
+
+    def bin_has_received_something
+      !@bin.empty?
+    end
+  end
+end

lib/device_wrappers.rb

@@ -0,0 +1,2 @@
+require 'device_wrappers/bin'
+require 'device_wrappers/drawer'

lib/device_wrappers/bin.rb

@@ -0,0 +1,12 @@
+class PhyscalBin
+  def initialize
+    @events_received = 0
+    Devices.on_bin_entry do
+      @events_received += 1
+    end
+  end
+  def empty?
+    @events_received == 0
+  end
+end
+

lib/device_wrappers/drawer.rb

@@ -0,0 +1,10 @@
+class PhysicalDrawer 
+  def initialize(drawer_no)
+    @drawer_no = drawer_no
+  end
+  def drop_can
+    Devices.drawer_drop_can(@drawer_no)
+  end
+end
+
+

lib/main.rb

@@ -1,11 +1,15 @@
 require "vmlog"
 require 'devices'
+require 'command_processor'
+require 'control/remote_commands'
+require 'control/vending_machine'
 
 module Control
-  include VMLog
-
+  extend VMLog
+  
   def self.main
     # here, you should load your vending machine control software
+    CommandProcessor.run_server(RemoteCommands.new)
 
     # as an example of using the actuators and sensors (see doc/actuators_and_sensors)
     Devices.display_show(0, 'Choose')