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107 行
3.3 KiB
107 行
3.3 KiB
import unittest.mock as mock
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import pytest
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import yaml
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import mlagents.trainers.tests.mock_brain as mb
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import numpy as np
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from mlagents.trainers.rl_trainer import RLTrainer
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from mlagents.trainers.tests.test_buffer import construct_fake_processing_buffer
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from mlagents.trainers.buffer import AgentBuffer
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@pytest.fixture
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def dummy_config():
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return yaml.safe_load(
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"""
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summary_path: "test/"
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reward_signals:
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extrinsic:
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strength: 1.0
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gamma: 0.99
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"""
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)
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def create_mock_brain():
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mock_brain = mb.create_mock_brainparams(
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vector_action_space_type="continuous",
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vector_action_space_size=[2],
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vector_observation_space_size=8,
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number_visual_observations=1,
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)
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return mock_brain
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def create_rl_trainer():
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mock_brainparams = create_mock_brain()
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trainer = RLTrainer(mock_brainparams, dummy_config(), True, 0)
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return trainer
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def create_mock_all_brain_info(brain_info):
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return {"MockBrain": brain_info}
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def create_mock_policy():
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mock_policy = mock.Mock()
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mock_policy.reward_signals = {}
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mock_policy.retrieve_memories.return_value = np.zeros((1, 1), dtype=np.float32)
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mock_policy.retrieve_previous_action.return_value = np.zeros(
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(1, 1), dtype=np.float32
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)
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return mock_policy
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@mock.patch("mlagents.trainers.rl_trainer.RLTrainer.add_policy_outputs")
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@mock.patch("mlagents.trainers.rl_trainer.RLTrainer.add_rewards_outputs")
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@pytest.mark.parametrize("num_vis_obs", [0, 1, 2], ids=["vec", "1 viz", "2 viz"])
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def test_rl_trainer(add_policy_outputs, add_rewards_outputs, num_vis_obs):
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trainer = create_rl_trainer()
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trainer.policy = create_mock_policy()
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fake_action_outputs = {
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"action": [0.1, 0.1],
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"value_heads": {},
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"entropy": np.array([1.0], dtype=np.float32),
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"learning_rate": 1.0,
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}
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mock_braininfo = mb.create_mock_braininfo(
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num_agents=2,
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num_vector_observations=8,
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num_vector_acts=2,
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num_vis_observations=num_vis_obs,
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)
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trainer.add_experiences(mock_braininfo, mock_braininfo, fake_action_outputs)
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# Remove one of the agents
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next_mock_braininfo = mb.create_mock_braininfo(
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num_agents=1,
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num_vector_observations=8,
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num_vector_acts=2,
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num_vis_observations=num_vis_obs,
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)
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brain_info = trainer.construct_curr_info(next_mock_braininfo)
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# assert construct_curr_info worked properly
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assert len(brain_info.agents) == 1
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assert len(brain_info.visual_observations) == num_vis_obs
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assert len(brain_info.vector_observations) == 1
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# Test end episode
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trainer.end_episode()
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for agent_id in trainer.episode_steps:
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assert trainer.episode_steps[agent_id] == 0
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assert len(trainer.processing_buffer[agent_id]["action"]) == 0
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for rewards in trainer.collected_rewards.values():
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for agent_id in rewards:
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assert rewards[agent_id] == 0
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def test_clear_update_buffer():
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trainer = create_rl_trainer()
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trainer.processing_buffer = construct_fake_processing_buffer()
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trainer.update_buffer = AgentBuffer()
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trainer.processing_buffer.append_to_update_buffer(
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trainer.update_buffer, 2, batch_size=None, training_length=2
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)
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trainer.clear_update_buffer()
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for _, arr in trainer.update_buffer.items():
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assert len(arr) == 0
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