add specs for type conversion

spec/spec.opts

@@ -0,0 +1 @@
+--colour

spec/spec_helper.rb

@@ -0,0 +1,10 @@
+begin
+  require 'spec'
+rescue LoadError
+  require 'rubygems' unless ENV['NO_RUBYGEMS']
+  gem 'rspec'
+  require 'spec'
+end
+
+$:.unshift(File.dirname(__FILE__) + '/../lib')
+require 'v8'

spec/therubyracer_spec.rb

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+require File.dirname(__FILE__) + '/spec_helper.rb'
+
+describe "The Ruby Racer" do
+  
+  before(:each) do
+    @cxt = V8::Context.new
+  end
+  
+  describe  "Type Conversion from Ruby to Javascript" do
+    
+    it "can pass strings back to ruby" do
+      eval("'Hello World'").should == "Hello World"
+    end
+    
+    it "can pass numbers back to ruby" do
+      eval("1").should == 1
+      eval("2.5").should == 2.5
+    end
+    
+    it "can pass boolean values back to ruby" do
+      eval("true").should be(true)
+      eval("false").should be(false)
+    end
+        
+  end
+  
+  def eval(str)
+    @cxt.eval(str)
+  end
+  
+end