Tsung file for socket.io

?xml version="1.0"?>
<!DOCTYPE tsung SYSTEM "~/.tsung/tsung-1.0.dtd">
<tsung loglevel="debug" version="1.0" dumptraffic="true">

  <!-- Client side setup -->
  <clients>
    <client host="localhost" use_controller_vm="true" maxusers="200" />
  </clients>

  <!-- Server side setup -->
  <servers>
    <server host="site_url" port="80" type="tcp"></server>
  </servers>

  <load>
  <!-- several arrival phases can be set: for each phase, you can set
  the mean inter-arrival time between new clients and the phase
  duration -->
    <arrivalphase phase="1" duration="100" unit="second">
      <users interarrival="100" unit="second"></users>
    </arrivalphase>
  </load>


  <!-- Additional testing options -->
  <options>
    <option name="websocket_path" value="/socket.io/1/websocket"/>

    <!-- How to distribute user-agents among Tsung sessions -->
    <option type="ts_http" name="user_agent">
      <user_agent probability="80">Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.8) Gecko/20050513 Galeon/1.3.21</user_agent>
      <user_agent probability="20">Mozilla/5.0 (Windows; U; Windows NT 5.2; fr-FR; rv:1.7.8) Gecko/20050511 Firefox/1.0.4</user_agent>
    </option>
  </options>

  <!-- start a session for a http user. the probability is the
  frequency of this type os session. The sum of all session's
  probabilities must be 100 -->

 <sessions>
  <session name="activity_browse" probability="100" type="ts_http">

    <request>
       <dyn_variable name="sid" re="\r\n\r\n([^:]+):[^:]+:[^:]+:[^:]+"/>
       <http url="/socket.io/1/" method="POST" version="1.1" contents=""></http>
    </request>

    <change_type new_type="ts_websocket" host="site_url" port="80" server_type="tcp" restore="true" store="true" />

    <request subst="true">
       <websocket type="connect" path='/socket.io/1/websocket/%%_sid%%'></websocket>
    </request>

    <thinktime value="2"/>

    <request>
       <websocket type="message">5:1+::{"name":"first:event","args":[]}</websocket>
    </request>

    <thinktime value="2"/>

    <request><websocket type="close"></websocket></request>

  </session>
 </sessions>
</tsung>