test_core_envs_semantics.py 文件源码

def test_nice_vnc_semantics_match(spec, matcher, wrapper):
    # Check that when running over VNC or using the raw environment,
    # semantics match exactly.
    gym.undo_logger_setup()
    logging.getLogger().setLevel(logging.INFO)

    spaces.seed(0)

    vnc_env = spec.make()
    if vnc_env.metadata.get('configure.required', False):
        vnc_env.configure(remotes=1)
    vnc_env = wrapper(vnc_env)
    vnc_env = wrappers.Unvectorize(vnc_env)

    env = gym.make(spec._kwargs['gym_core_id'])

    env.seed(0)
    vnc_env.seed(0)

    # Check that reset observations work
    reset(matcher, env, vnc_env, stage='initial reset')

    # Check a full rollout
    rollout(matcher, env, vnc_env, timestep_limit=50, stage='50 steps')

    # Reset to start a new episode
    reset(matcher, env, vnc_env, stage='reset to new episode')

    # Check that a step into the next episode works
    rollout(matcher, env, vnc_env, timestep_limit=1, stage='1 step in new episode')

    # Make sure env can be reseeded
    env.seed(1)
    vnc_env.seed(1)
    reset(matcher, env, vnc_env, 'reseeded reset')
    rollout(matcher, env, vnc_env, timestep_limit=1, stage='reseeded step')