Make sure Rational specs pass with Ruby 1.8.x

README.md

@@ -37,6 +37,7 @@ Default options:
       :keyword    => :cyan,
       :method     => :purpleish,
       :nilclass   => :red,
+      :rational   => :blue,
       :string     => :yellowish,
       :struct     => :pale,
       :symbol     => :cyanish,

lib/awesome_print/formatter.rb

@@ -201,7 +201,7 @@ module AwesomePrint
     def awesome_bigdecimal(n)
       colorize(n.to_s("F"), :bigdecimal)
     end
-    
+
     # Format Rational object.
     #------------------------------------------------------------------------------
     def awesome_rational(n)

spec/formats_spec.rb

@@ -486,7 +486,17 @@ EOS
 
     it "should present Rational object with arbitrary precision" do
       rat = Rational(201020102010201020102010201020102010, 2)
-      rat.ai(:plain => true).should == "100510051005100510051005100510051005/1"
+      out = rat.ai(:plain => true)
+      #
+      # Ruby 1.9 slightly changed the format of Rational#to_s, see
+      # http://techtime.getharvest.com/blog/harvest-is-now-on-ruby-1-dot-9-3 and
+      # http://www.ruby-forum.com/topic/189397
+      #
+      if RUBY_VERSION < "1.9"
+        out.should == "100510051005100510051005100510051005"
+      else
+        out.should == "100510051005100510051005100510051005/1"
+      end
     end
   end