From 6ad7230c59dec63ded6fad280e179a185e56153c Mon Sep 17 00:00:00 2001
From: drammopo <drammopo@gmail.com>
Date: Sun, 9 Feb 2014 22:32:06 +0200
Subject: [PATCH 1/2] Feature: Initial attempt at the exercise.

---
 train.rb      | 30 +++++++++++++++++++++++++-----
 train_spec.rb | 32 +++++++++++++++++++++++---------
 2 files changed, 48 insertions(+), 14 deletions(-)

diff --git a/train.rb b/train.rb
index bc6dbcb..b3c1a02 100644
--- a/train.rb
+++ b/train.rb
@@ -1,15 +1,35 @@
 class Conductor
 
-	attr_reader :engineer
+  attr_reader :engineer
+	attr_reader :message_board
 
-	def initialize(engineer)
-		@engineer = engineer
+	def initialize(message_board, engineer)
+    @engineer = engineer
+		@message_board = message_board
 	end
 
 	def see_danger_coming!
-		engineer.slow_down!
+		message_board.send_message(engineer.slow_down!)
 	end
 end
 
 class Engineer
-end
\ No newline at end of file
+
+  attr_reader :message_board
+
+  def initialize(message_board)
+    @message_board = message_board
+  end
+
+  def avert_danger!
+    message_board.confirm_slow_down
+  end
+end
+
+class MessageBoard
+
+  def send_message(message)
+    message
+  end
+
+end
diff --git a/train_spec.rb b/train_spec.rb
index de4cff5..7ad6a3a 100644
--- a/train_spec.rb
+++ b/train_spec.rb
@@ -2,12 +2,26 @@
 require './train'
 describe Conductor do
 
-	let(:engineer) { Engineer.new }
-	let(:conductor) { Conductor.new(engineer)}
-
-	it "should tell the engineer to slow down" do
-		engineer.should_receive(:slow_down!)
-		conductor.see_danger_coming!
-	end
-	
-end
\ No newline at end of file
+	let(:message_board) { MessageBoard.new()}
+  let(:engineer) { Engineer.new (message_board)}
+  let(:conductor) { Conductor.new(message_board,engineer)}
+
+  it "should see trouble and tell the `message_board` to slow down" do
+    engineer.should_receive(:slow_down!)
+    conductor.see_danger_coming!
+  end
+end
+
+describe Engineer do
+
+  let(:message_board) { MessageBoard.new()}
+  let(:engineer) { Engineer.new (message_board)}
+  let(:conductor) { Conductor.new(message_board,engineer)}
+
+  it "slows down and tells the `message_board` `confirm_slow_down`" do
+    engineer.should_receive(:slow_down!)
+    conductor.see_danger_coming!
+    message_board.should_receive(:confirm_slow_down)
+    engineer.avert_danger!
+  end
+end

From 3c456e1a6cc13b807f5c9bf5c1cf26bd96cc6367 Mon Sep 17 00:00:00 2001
From: drammopo <drammopo@gmail.com>
Date: Tue, 11 Feb 2014 21:16:50 +0200
Subject: [PATCH 2/2] Changed specification block to reflect 1 assertion per
 block.

---
 train_spec.rb | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/train_spec.rb b/train_spec.rb
index 7ad6a3a..f2bf11e 100644
--- a/train_spec.rb
+++ b/train_spec.rb
@@ -6,7 +6,7 @@
   let(:engineer) { Engineer.new (message_board)}
   let(:conductor) { Conductor.new(message_board,engineer)}
 
-  it "should see trouble and tell the `message_board` to slow down" do
+  it "sees trouble and tells the engineer to slow down via the message board" do
     engineer.should_receive(:slow_down!)
     conductor.see_danger_coming!
   end
@@ -18,9 +18,12 @@
   let(:engineer) { Engineer.new (message_board)}
   let(:conductor) { Conductor.new(message_board,engineer)}
 
-  it "slows down and tells the `message_board` `confirm_slow_down`" do
+  it "receives the slows down message" do
     engineer.should_receive(:slow_down!)
     conductor.see_danger_coming!
+  end
+
+  it "replies back with the confirmation message via the message board" do
     message_board.should_receive(:confirm_slow_down)
     engineer.avert_danger!
   end