# Running the Doctrine 2 Testsuite
  
  ## Setting up a PHPUnit Configuration XML
  
  ..
  
  ## Testing Lock-Support
  
  The Lock support in Doctrine 2 is tested using Gearman, which allows to run concurrent tasks in parallel.
  Install Gearman with PHP as follows:
  
  1. Go to http://www.gearman.org and download the latest Gearman Server
  2. Compile it and then call ldconfig
  3. Start it up "gearmand -vvvv"
  4. Install pecl/gearman by calling "gearman-beta"
  
  You can then go into tests/ and start up two workers:
  
      php Doctrine/Tests/ORM/Functional/Locking/LockAgentWorker.php
  
  Then run the locking test-suite:
  
      phpunit --configuration <myconfig.xml> Doctrine/Tests/ORM/Functional/Locking/GearmanLockTest.php
  
  This can run considerable time, because it is using sleep() to test for the timing ranges of locks.