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104 行
4.1 KiB
104 行
4.1 KiB
import unittest.mock as mock
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from unittest.mock import Mock, MagicMock
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import unittest
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import cloudpickle
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from queue import Empty as EmptyQueue
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from mlagents.envs.subprocess_env_manager import (
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SubprocessEnvManager,
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EnvironmentResponse,
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EnvironmentCommand,
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worker,
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StepResponse,
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)
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from mlagents.envs.base_unity_environment import BaseUnityEnvironment
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def mock_env_factory(worker_id: int):
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return mock.create_autospec(spec=BaseUnityEnvironment)
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class MockEnvWorker:
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def __init__(self, worker_id, resp=None):
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self.worker_id = worker_id
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self.process = None
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self.conn = None
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self.send = Mock()
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self.recv = Mock(return_value=resp)
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self.waiting = False
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class SubprocessEnvManagerTest(unittest.TestCase):
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def test_environments_are_created(self):
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SubprocessEnvManager.create_worker = MagicMock()
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env = SubprocessEnvManager(mock_env_factory, 2)
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# Creates two processes
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env.create_worker.assert_has_calls(
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[
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mock.call(0, env.step_queue, mock_env_factory),
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mock.call(1, env.step_queue, mock_env_factory),
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]
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)
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self.assertEqual(len(env.env_workers), 2)
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def test_reset_passes_reset_params(self):
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SubprocessEnvManager.create_worker = lambda em, worker_id, step_queue, env_factory: MockEnvWorker(
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worker_id, EnvironmentResponse("reset", worker_id, worker_id)
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)
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manager = SubprocessEnvManager(mock_env_factory, 1)
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params = {"test": "params"}
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manager.reset(params, False)
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manager.env_workers[0].send.assert_called_with("reset", (params, False, None))
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def test_reset_collects_results_from_all_envs(self):
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SubprocessEnvManager.create_worker = lambda em, worker_id, step_queue, env_factory: MockEnvWorker(
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worker_id, EnvironmentResponse("reset", worker_id, worker_id)
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)
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manager = SubprocessEnvManager(mock_env_factory, 4)
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params = {"test": "params"}
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res = manager.reset(params)
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for i, env in enumerate(manager.env_workers):
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env.send.assert_called_with("reset", (params, True, None))
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env.recv.assert_called()
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# Check that the "last steps" are set to the value returned for each step
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self.assertEqual(
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manager.env_workers[i].previous_step.current_all_brain_info, i
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)
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assert res == list(map(lambda ew: ew.previous_step, manager.env_workers))
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def test_step_takes_steps_for_all_non_waiting_envs(self):
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SubprocessEnvManager.create_worker = lambda em, worker_id, step_queue, env_factory: MockEnvWorker(
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worker_id, EnvironmentResponse("step", worker_id, worker_id)
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)
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manager = SubprocessEnvManager(mock_env_factory, 3)
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manager.step_queue = Mock()
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manager.step_queue.get_nowait.side_effect = [
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EnvironmentResponse("step", 0, StepResponse(0, None)),
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EnvironmentResponse("step", 1, StepResponse(1, None)),
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EmptyQueue(),
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]
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step_mock = Mock()
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last_steps = [Mock(), Mock(), Mock()]
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manager.env_workers[0].previous_step = last_steps[0]
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manager.env_workers[1].previous_step = last_steps[1]
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manager.env_workers[2].previous_step = last_steps[2]
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manager.env_workers[2].waiting = True
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manager._take_step = Mock(return_value=step_mock)
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res = manager.step()
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for i, env in enumerate(manager.env_workers):
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if i < 2:
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env.send.assert_called_with("step", step_mock)
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manager.step_queue.get_nowait.assert_called()
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# Check that the "last steps" are set to the value returned for each step
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self.assertEqual(
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manager.env_workers[i].previous_step.current_all_brain_info, i
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)
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self.assertEqual(
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manager.env_workers[i].previous_step.previous_all_brain_info,
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last_steps[i].current_all_brain_info,
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)
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assert res == [
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manager.env_workers[0].previous_step,
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manager.env_workers[1].previous_step,
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]
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