text: import subprocess
  import pytest
  def run_test_script(name):
      # os.chdir()
      p=subprocess.Popen(["python","tests/{}".format(name)])
      (stdout, stderr) = p.communicate()
      assert p.returncode ==0, stderr
      # print(stderr)
  
  names=["demo.py",
  "play_gym.py",
  "play_gym_pend.py",
  # "play_gym_atari.py",
  "play_gym_reach.py",
  "exp_manager.py"]
  
  
  @pytest.mark.parametrize("name", names)
  def test_script(name):
      print(name)
      run_test_script(name)