require 'spec_helper'
include Capybara::DSL


describe 'Gatling' do


  before(:all) do

    include Rack::Test::Methods

    def app
      Sinatra::Application
    end

    #expected image to compare with
    @example_good_image = 'smiley-faceicon.png'

    @spec_support_root = spec_support_root
  end


  after(:each) do
    remove_refs(@ref_path)
  end
  
  

  describe 'creating an initial reference (expected) image' do

    before(:each) do
      @ref_path = Gatling::Configuration.reference_image_path = File.join(@spec_support_root, 'ref_path')
    end

      it "should notify that no reference exists for image and create a candidate" do
        gatling = gatling_for_spec('smiley-faceicon.png')
        expect {gatling.matches?}.should raise_error(RuntimeError, "The design reference #{@example_good_image} does not exist, #{@ref_path}/candidate/#{@example_good_image} is now available to be used as a reference. Copy candidate to root reference_image_path to use as reference")
        File.exists?(File.join(@ref_path,'candidate','smiley-faceicon.png')).should be_true
      end
    end



  describe 'image comparison' do

    before(:each) do
     # @ready_ref = Gatling::Configuration.reference_image_path = File.join(@spec_support_root, 'ready_candidate_ref')
     @ref_path = Gatling::Configuration.reference_image_path = File.join(@spec_support_root, 'ref_path')
     save_element_for_test
    end

    it 'images match' do
      @gatling = gatling_for_spec('smiley-faceicon.png')
      @gatling.matches?.should be_true
    end

    it 'images do not match and diff created' do
       #convert -fill none -stroke black -strokewidth 5 smiley-faceicon.png -draw 'arc 155,25 185,45 180' sad-faceicon.png
       convert_element_to_bad_element(File.join(@ref_path,"#{@example_good_image}"))
       gatling = gatling_for_spec('smiley-faceicon.png')
       expect {gatling.matches?}.should raise_error(RuntimeError, "element did not match #{@example_good_image}. A diff image: smiley-faceicon_diff.png was created in #{@ref_path}/diff. A new reference #{@ref_path}/candidate/#{@example_good_image} can be used to fix the test")
       File.exists?(File.join(@ref_path,'diff','smiley-faceicon_diff.png')).should be_true
     end
  end



  describe 'trainer toggle' do

    before(:each) do
      @ref_path = Gatling::Configuration.reference_image_path = File.join(@spec_support_root, 'ref_path')
    end

    it 'should save a reference file to the nominated folder without raising an exception' do
      Gatling::Configuration.trainer_toggle = true
      gatling = gatling_for_spec('smiley-faceicon.png')

      expect {gatling.matches?}.should_not raise_error
      File.exists?(File.join(@ref_path,'smiley-faceicon.png')).should be_true
    end
    
    it 'should alert that the file should be deleted if a reference already exists and not overwrite file' do
      save_element_for_test
      Gatling::Configuration.trainer_toggle = true
      gatling = gatling_for_spec('smiley-faceicon.png')
      
      reference_file_ctime = File.ctime(File.join(@ref_path,'smiley-faceicon.png'))
      sleep(1)
      expect {gatling.matches?}.should_not raise_error
      
      #checks if file was overwritten by comparing the time stamps
      reference_file_ctime.eql?(File.ctime(File.join(@ref_path,'smiley-faceicon.png'))).should be_true
    end

  end
  
  
  
  
  # MOCK SELENIUM ELEMENT
  # correct size (340px*42px)
  # image magick saves screenshot
  #create diff creates the correct candidate
  
  
end