Class: Speedtest::Test

Inherits:
Object
  • Object
show all
Defined in:
lib/speedtest.rb

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Test

Returns a new instance of Test.



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# File 'lib/speedtest.rb', line 9

def initialize(options = {})
@download_runs = options[:download_runs] 		|| 4
@upload_runs = options[:upload_runs] 				|| 4
@ping_runs = options[:ping_runs]						|| 4
@download_sizes = options[:download_sizes] 	|| [750, 1500]
@upload_sizes = options[:upload_sizes]			|| [197190, 483960]
@debug = options[:debug]										|| false
end

Instance Method Details

#download ⇒ Object 



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# File 'lib/speedtest.rb', line 58

def download
	log "\nstarting download tests:"
  threads = []

  start_time = Time.new
  @download_sizes.each { |size|
    1.upto(@download_runs) { |i|
      threads << Thread.new { |thread|
        downloadthread("#{@server_root}/speedtest/random#{size}x#{size}.jpg")
      }
    }
  }

  total_downloaded = 0
  threads.each { |t|
    t.join
    total_downloaded += t["downloaded"]
  }

  total_time = Time.new - start_time
  log "Took #{total_time} seconds to download #{total_downloaded} bytes in #{threads.length} threads\n"

  total_downloaded * 8 / total_time
end

#downloadthread(url) ⇒ Object 



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# File 'lib/speedtest.rb', line 52

def downloadthread(url)
  log "  downloading: #{url}"
  page = HTTParty.get(url)
  Thread.current["downloaded"] = page.body.length
end

#log(msg) ⇒ Object 



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# File 'lib/speedtest.rb', line 46

def log(msg)
  if @debug
    puts msg
  end
end

#pick_server ⇒ Object 



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# File 'lib/speedtest.rb', line 123

def pick_server
  page = HTTParty.get("http://www.speedtest.net/speedtest-config.php")
  ip,lat,lon = page.body.scan(/<client ip="([^"]*)" lat="([^"]*)" lon="([^"]*)"/)[0]
  orig = GeoPoint.new(lat, lon)
  log "Your IP: #{ip}\nYour coordinates: #{orig}\n"

  page = HTTParty.get("http://www.speedtest.net/speedtest-servers.php")
  sorted_servers=page.body.scan(/<server url="([^"]*)" lat="([^"]*)" lon="([^"]*)/).map { |x| {
    :distance => orig.distance(GeoPoint.new(x[1],x[2])),
    :url => x[0].split(/(http:\/\/.*)\/speedtest.*/)[1]
  } }
  .reject { |x| x[:url].nil? } # reject 'servers' without a domain
  .sort_by { |x| x[:distance] }

  # sort the nearest 10 by download latency
  latency_sorted_servers = sorted_servers[0..9].map { |x|
    {
    :latency => ping(x[:url]),
    :url => x[:url]
    }}.sort_by { |x| x[:latency] }
  selected = latency_sorted_servers[0]
  log "Automatically selected server: #{selected[:url]} - #{selected[:latency]} ms"

  selected
end

#ping(server) ⇒ Object 



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# File 'lib/speedtest.rb', line 149

def ping(server)
  times = []
  1.upto(@ping_runs) {
    start = Time.new
    begin
      page = HTTParty.get("#{server}/speedtest/latency.txt")
      times << Time.new - start
    rescue Timeout::Error
      times << 999999
    rescue Net::HTTPNotFound
      times << 999999
    end
  }
  times.sort
  times[1, @ping_runs].inject(:+) * 1000 / @ping_runs # average in milliseconds
end

#pretty_speed(speed) ⇒ Object 



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# File 'lib/speedtest.rb', line 36

def pretty_speed(speed)
  units = ["bps", "Kbps", "Mbps", "Gbps", "Tbps"]
  i = 0
  while speed > 1024
    speed /= 1024
    i += 1
  end
  "%.2f #{units[i]}" % speed
end

#randomString(alphabet, size) ⇒ Object 



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# File 'lib/speedtest.rb', line 88

def randomString(alphabet, size)
  (1.upto(size)).map { alphabet[rand(alphabet.length)] }.join
end

#run ⇒ Object 



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# File 'lib/speedtest.rb', line 18

def run()
  server = pick_server
  @server_root = server[:url]
  log "Server #{@server_root}"

  latency = server[:latency]

  download_rate = download
  log "Download: #{pretty_speed download_rate}"

  upload_rate = upload
  log "Upload: #{pretty_speed upload_rate}"

Result.new(:server => @server_root, :latency => latency,
	:download_rate => download_rate, :pretty_download_rate => pretty_speed(download_rate),
	:pretty_upload_rate => pretty_speed(upload_rate), :upload_rate => upload_rate)
end

#upload ⇒ Object 



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# File 'lib/speedtest.rb', line 92

def upload
	log "\nstarting upload tests:"

  data = []
  @upload_sizes.each { |size|
    1.upto(@upload_runs) {
      data << randomString(('A'..'Z').to_a, size)
    }
  }

  threads = []
  start_time = Time.new
  threads = data.map { |data|
    Thread.new(data) { |content|
      log "  uploading size #{content.size}: #{@server_root}/speedtest/upload.php"
      uploadthread("#{@server_root}/speedtest/upload.php", content)
    }
  }

  total_uploaded = 0
  threads.each { |t|
    t.join
    total_uploaded += t["uploaded"]
  }
  total_time = Time.new - start_time
  log "Took #{total_time} seconds to upload #{total_uploaded} bytes in #{threads.length} threads\n"

  # bytes to bits / time = bps
  total_uploaded * 8 / total_time
end

#uploadthread(url, content) ⇒ Object 



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# File 'lib/speedtest.rb', line 83

def uploadthread(url, content)
  page = HTTParty.post(url, :body => { "content" => content })
  Thread.current["uploaded"] = page.body.split('=')[1].to_i
end