CR NP benchmarking script (full map vs selected map)

require 'benchmark'
require 'nokogiri'
require 'open-uri'

doc = Nokogiri::HTML(open('http://molestia.ponify.me:8062/index.html', 'User-Agent' => "Mozilla/5.0 Ruby/#{RUBY_VERSION}"))

Benchmark.bm do |x|
  x.report("Full mapping:") {
    #begin full table=>hash mapping

    stream_data = {}

    doc.xpath('//table[3]/tr').each do |row|
      key = row.css('td')[0].content.strip.sub(':','').gsub(' ','_').downcase.to_sym
      value = row.css('td')[1].content
      stream_data[key] = value
    end

    #puts stream_data.inspect
  }

  x.report("Selected mapping:") {
    #begin selected table=>hash mapping

    stream_data = {}
    expected_prefixes = ["Stream Status", "Listener Peak", "Stream Title", "Current"]

    doc.xpath('//table[3]/tr').each do |row|
      next unless row.css('td')[0].content.start_with?(*expected_prefixes)
      key = row.css('td')[0].content.strip.sub(':','').gsub(' ','_').downcase.to_sym
      value = row.css('td')[1].content
      stream_data[key] = value
    end

    #puts stream_data.inspect
  }
end