From 9961c81000515c19ebb489a5a54d791137a51e54 Mon Sep 17 00:00:00 2001
From: L Lumbreras <llumbreras@gmail.com>
Date: Fri, 6 Dec 2013 18:02:28 -0800
Subject: [PATCH] Add method and test for furlong to km

---
 furlong.rb      |  7 ++++++-
 furlong_spec.rb |  6 +++++-
 furlong_test.rb | 13 +++++++++++--
 3 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/furlong.rb b/furlong.rb
index 9b7e2b4..0b75bbc 100644
--- a/furlong.rb
+++ b/furlong.rb
@@ -4,4 +4,9 @@ class Furlong
 	def miles_to_kilometers(miles)
 		miles * KM_PER_MILE
 	end
-end
\ No newline at end of file
+
+  KM_PER_FURLONG = 0.201168
+  def furlong_to_kilometers(furlong)
+    furlong * KM_PER_FURLONG
+  end
+end
diff --git a/furlong_spec.rb b/furlong_spec.rb
index 053ebfd..cace467 100644
--- a/furlong_spec.rb
+++ b/furlong_spec.rb
@@ -11,5 +11,9 @@
 
 	it "converts a marathon: 26.219 miles to 42.194988 km" do
 		subject.miles_to_kilometers(26.219).should be_within(0.001).of(42.194988)
+  end
+
+  it "converts 1 furlong to 0.201168 kilometers" do
+    subject.furlong_to_kilometers(1).should be_within(0.001).of(0.201168)
 	end
-end
\ No newline at end of file
+end
diff --git a/furlong_test.rb b/furlong_test.rb
index e7cd3ba..abb2469 100644
--- a/furlong_test.rb
+++ b/furlong_test.rb
@@ -15,6 +15,11 @@ def test_marathon
 		assert_in_delta 42.194, km, 0.01
 	end
 
+  def test_furlong
+    km = Furlong.new.furlong_to_kilometers(1)
+    assert_in_delta 0.201168, km, 0.001
+  end
+
 end
 
 describe Furlong do
@@ -23,5 +28,9 @@ def test_marathon
 	it "converts 1 mile to 1.60934 km" do
 		calculator.miles_to_kilometers(1).must_be_within_delta(1.60934, 0.001)
 	end
-	
-end
\ No newline at end of file
+  
+  it "converts 1 furlong to 0.201168 km" do
+    calculator.furlong_to_kilometers(1).must_be_within_delta(0.201168, 0.001)
+  end
+
+end