Python gevent 模块，subprocess() 实例源码

def evaluate_output(task_name, input_path, output_path):
        """
        Given an input of a task, evaluate the correctness of the output
        :param task_name: Name of the task
        :param input_path: Path to the user's input file
        :param output_path: Path to the user's output file
        :return: The stdout of the checker
        """
        try:
            # call the checker and store the output
            output = gevent.subprocess.check_output([
                ContestManager.tasks[task_name]["checker"],
                StorageManager.get_absolute_path(input_path),
                StorageManager.get_absolute_path(output_path)
            ])
        except:
            # TODO log the stdout and stderr of the checker
            Logger.error(
                "TASK", "Error while evaluating output %s "
                "for task %s, with input %s: %s" %
                (output_path, task_name, input_path, traceback.format_exc())
            )
            raise
        Logger.info("TASK", "Evaluated output %s for task %s, with input %s" % (output_path, task_name, input_path))
        return output

def test_drivenmatlabagent(volttron_instance1):
    print("** Setting up test_drivenagent module **")

    wrapper = volttron_instance1

    #Write config files for master driver
    process = Popen(['python', 'config_builder.py', 
                     '--count=1', 
                     '--publish-only-depth-all',
                     '--campus=fakecampus',
                     '--building=fakebuilding',
                     '--interval=5',
                     '--config-dir=../../applications/pnnl/FakeDrivenMatlabAgent/tests',
                     'fake', 
                     '../../applications/pnnl/FakeDrivenMatlabAgent/tests/test_fake.csv', 
                     'null'], 
                    env=volttron_instance1.env, cwd='scripts/scalability-testing',
                    stdout=subprocess.PIPE, stderr=subprocess.PIPE)
    result = process.wait()
    print result
    assert result == 0

    #Actuator Agent
    agent_uuid = volttron_instance1.install_agent(
        agent_dir="services/core/ActuatorAgent",
        config_file="services/core/ActuatorAgent/actuator-deploy.service",
        start=True)
    print("agent id: ", agent_uuid)
    assert agent_uuid
    actuator_agent = wrapper.build_agent()

    #Driven Matlab Agent
    agent_uuid = volttron_instance1.install_agent(
        agent_dir="applications/pnnl/FakeDrivenMatlabAgent",
        config_file=config_wh,
        start=True)
    print("agent id: ", agent_uuid)
    assert agent_uuid
    driven_agent = wrapper.build_agent()

    #Fake Master Driver
    agent_uuid = volttron_instance1.install_agent(
        agent_dir="services/core/MasterDriverAgent",
        config_file="applications/pnnl/FakeDrivenMatlabAgent/tests/master-driver.agent",
        start=True)
    print("agent id: ", agent_uuid)
    assert agent_uuid
    driver_agent = wrapper.build_agent()

    gevent.sleep(5)

    path = 'fakecampus/fakebuilding/fakedriver0/HPWH_Phy0_PowerState'
    value = driven_agent.vip.rpc.call('platform.actuator', 'get_point', path).get()
    print('The set point value is '+str(value))
    assert value == 1 

    path = 'fakecampus/fakebuilding/fakedriver0/ERWH_Phy0_ValveState'
    value = driven_agent.vip.rpc.call('platform.actuator', 'get_point', path).get()
    print('The set point value is '+str(value))
    assert value == 1