lots of updates, and all specs PASS!! ^_^

spec/server_helper.rb

@@ -1,36 +1,78 @@
 # encoding: utf-8
 
-module ServerHelper
-  include AMQP::Server
+require 'rubygems'
+require 'mq'
+require 'amqp'
+require 'amqp/server'
+require 'json'
+
+class ServerHelper
   
-  class << self
-    def log
-      @@log ||= []
-    end
-    attr_writer :log
+  attr_accessor :stdin
+  attr_accessor :stdout
+  attr_accessor :stderr
+  attr_accessor :pid
+  
+  
+  def initialize(port = nil, timeout = nil)
+    @port = port
+    @timout = timeout
+    File.open(log_file, 'w') {}
+    @pid = start(port, timeout)
   end
   
-  # log & silence STDOUT output
-  def log(*args)
-    @@log << args
+  def self.clear_logs
+    Dir.glob(File.expand_path('server_helper*.log', File.dirname(__FILE__))).each do |file|
+      File.delete(file)
+    end
+  end
+  
+  def start(port = nil, timeout = nil)
+    port ||= 15672
+    timeout ||= 2
+    EM.fork_reactor {
+      $PORT = port
+      EM.start_server('localhost', port, AmqpServer)
+      EM.add_timer(timeout) { EM.stop }
+    }
+  end
+  
+  def stop
+    Process.kill('TERM', @pid)
+  end
+  
+  def kill
+    Process.kill('KILL', @pid)
+  end
+  
+  def log
+    File.open(log_file).to_a.map{ |l| JSON.parse(l) }
+  end
+  
+  def log_file
+    File.expand_path("server_helper-port#{@port}.log", File.dirname(__FILE__))
   end
   
 end
 
+module AmqpServer
+  include AMQP::Server
+
+  # customize log output
+  def log(*args)
+    # puts "\n>>>>>> Process.pid / $PORT: " + Process.pid.inspect + " / #{$PORT}\n"
+    args = {:method => args[0], :class => args[1].payload.class, :pid => Process.pid}
+    filename = File.expand_path("server_helper-port#{$PORT}.log", File.dirname(__FILE__))
+    File.open(filename, 'a') do |f|
+      f.write("#{args.to_json}\n")
+    end
+  end
+end
 
 #
 # Helper methods
 #
 
-def start_server(port = 15762, timeout = 2)
-  bef_fork = EM.forks.clone
-  EM.fork {
-    EM.start_server('localhost', port, ServerHelper)
-    EM.add_timer(timeout) { EM.stop }
-  }
-  (EM.forks - bef_fork).first
+def start_server(port = nil, timeout = nil)
+  ServerHelper.new(port, timeout)
 end
-
-def stop_server(pid)
-  Process.kill('TERM', pid)
-end