YSlow on Ruby

 

Ruby wrapper for YSlow via PhantomJS.

Install

gem install yslow
              
              # via bundler
              bundle init
              echo "gem 'yslow'" >> Gemfile
              bundle install
              

Example Usage

              #!/usr/bin/ruby
              require "yslow"
              
              YSlow.path
              # => /path/to/yslow.js
              #
              # Accepts custom path
              # YSlow.path "/path/to/yslow.js"
              
              YSlow.phantomjs
              # => /path/to/phantomjs
              #
              # Accepts custom path
              # YSlow.phantomjs "/path/to/phantomjs"
              
              result = YSlow.run "http://www.example.com"
                    # , [ .. other yslow args .. ]
              
              result
              # => YSlow::Result
              
              result.result
              # yslow result hash
              
              # YSlow::Result#result  :: raw result hash
              # YSlow::Result#status  :: exit status
              # YSlow::Result#stdout  :: raw stdout string
              # YSlow::Result#stderr  :: raw stderr string
              # YSlow::Result#to_i    :: exit status
              # YSlow::Result#to_s    :: stdout if pass, else stderr
              # YSlow::Result#to_json :: stdout as json if passed, else result as json
              # YSlow::Result#to_h    :: parsed stdout hash if passed, else result as hash
              

See examples/basic.rb for a runnable example.

Example Usage: Test

              require "minitest/autorun"
              require "yslow"
              
              class TestExampleDotCom < Minitest::Unit::TestCase
                def setup
                  @result ||= YSlow.run "http://www.example.com"
                end
              
                def test_yslow_grade
                  assert (95..100).include?(@result.to_h["o"]),
                    "expected grade to be between 95 and 100"
                          # grade was 98 when this was created
                end
              
                def test_requests
                  assert (0..4).include?(@result.to_h["r"]),
                    "expected requests to be between 0 and 4"
                          # requests was 2 when this was created
                end
              
                def test_load_time
                  assert (0..200).include?(@result.to_h["lt"]),
                    "expected load time to be between 0 and 200"
                          # load time was 67 when this was created
                end
              
                def test_size
                  assert (2000..3000).include?(@result.to_h["w"]),
                    "expected page size to be between 2000 and 3000"
                          # load time was 2540 when this was created
                end
              end
              

See examples/minitest.rb for a runnable example.

Development

git clone https://github.com/jmervine/ruby-yslow.git
              cd ruby-yslow
              bundle install --path vendor/bundle
              bundle exec rake test
              

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