Class: Webrick::VCR

Inherits:
Object
  • Object
show all
Defined in:
lib/nitro/adapter/webrick/vcr.rb

Overview

VCR functionality, typically used for proxy based regression testing.

Class Method Summary collapse

Class Method Details

.playback(filename = 'session.yaml') ⇒ Object

Playback a recorded session. Typically used for testing.



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# File 'lib/nitro/adapter/webrick/vcr.rb', line 44

def playback(filename = 'session.yaml')
  Logger.info "Playing back application server session from '#{filename}'."
  
  $playback_session = YAML.load_file(filename)
  $playback_exception_count = 0
      
  WEBrick::HTTPServer.class_eval %{
    def start(&block)
      run(nil)
    end
    
    def run(sock)
      while true
        delta, req, res = $playback_session.shift
        
        if delta
          sleep(delta)
          begin
            service(req, res)
          rescue Object => ex
            $playback_exception_count += 1
            p '---', ex                
          end
        else
          return
        end
      end
    end
  }
  
  at_exit do
    puts "\n\n"
    puts "Playback raised #$playback_exception_count exceptions.\n"
    puts "\n"
  end
end

.record(filename = 'session.yaml') ⇒ Object

Enables session recording. The recorded data can be used for automatic app testing by means of the playback mode.



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# File 'lib/nitro/adapter/webrick/vcr.rb', line 15

def record(filename = 'session.yaml')
  Logger.info "Recording application server session to '#{filename}'."
  
  require 'facets/core/file/self/create'

  $record_session = []
  $last_record_time = Time.now

  Nitro::WebrickAdapter.class_eval %{   
    def do_GET(req, res)
      record_context(req, res)
      handle(req, res)
    end
    alias_method :do_POST, :do_GET

    def record_context(req, res)
      delta = Time.now - $last_record_time
      $last_record_time = Time.now
      $record_session << [delta, req, res]
    end          
  }

  at_exit do
    File.create(filename, YAML.dump($record_session))
  end
end