added testing infrastructure

Author: Joel Quenneville

.rspec

@@ -0,0 +1 @@
+--color

Rakefile

@@ -1,2 +1,6 @@
 #!/usr/bin/env rake
 require "bundler/gem_tasks"
+require 'rspec/core/rake_task'
+
+RSpec::Core::RakeTask.new(:spec)
+task default: :spec

ajax-datatables-rails.gemspec

@@ -14,4 +14,6 @@ Gem::Specification.new do |gem|
   gem.name          = "ajax-datatables-rails"
   gem.require_paths = ["lib"]
   gem.version       = AjaxDatatablesRails::VERSION
+  
+  gem.add_development_dependency "rspec"
 end

spec/ajax-datatables-rails/ajax_datatables_rails_spec.rb

@@ -0,0 +1,7 @@
+require 'spec_helper'
+
+describe AjaxDatatablesRails do
+  describe "as_json" do
+    it "should return the correct json feed"
+  end
+end

spec/spec_helper.rb

@@ -0,0 +1 @@
+require 'ajax-datatables-rails'