test_game.rb

require 'sinatra'
require 'sinatra/test/rspec'
require File.join(File.dirname(__FILE__), '../../server.rb')

Dir.chdir('../../')

describe 'Game logic' do

  it 'should be able to play in 0,0' do
    get '/new' #this route assigns data in session
    post '/play', :x => 0, :y => 0 #this route cannot retrieve data from session
    @response.should be_ok
  end 

end