text: import os, sys
  sys.path.append(os.path.abspath(os.path.join(os.getcwd(), "..")))
  from wpyscripts.tools.baisc_operater import *
  import wpyscripts.tools.traverse.travel as travel
  
  logger = manager.get_logger()
  
  def random_search():
      log_dir = os.environ.get("UPLOADDIR")
      if log_dir:
          log_dir = os.path.join(log_dir, "policy.log")
      else:
          log_dir = "../autotest/random_run_{0}.log".format(os.environ.get("ADB_SERIAL", ""))
      logger.info("run random search in testcase runner")
      travel.explore(log_dir, [], mode=0, max_num=3000)
  
  
  random_search()