mjlab/tests/test_action_manager.py
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Import upstream snapshot c19f713c415a699a79d71cd96aa13c3104a05047
Upstream: https://github.com/michaelgillett/mjlab
Upstream-Commit: c19f713c415a699a79d71cd96aa13c3104a05047
Upstream-Branch: main
2026-08-28 15:42:17 +08:00

119 lines
3.5 KiB
Python

"""Tests for action manager functionality."""
from unittest.mock import Mock
import pytest
import torch
from conftest import get_test_device
from mjlab.managers.action_manager import ActionManager
@pytest.fixture
def device():
"""Test device fixture."""
return get_test_device()
def _make_mock_action_term(action_dim: int):
"""Create a mock action term factory."""
def factory(env):
term = Mock()
term.action_dim = action_dim
term.raw_action = torch.zeros(env.num_envs, action_dim, device=env.device)
term.process_actions = Mock()
term.apply_actions = Mock()
term.reset = Mock()
return term
return factory
@pytest.fixture
def mock_env(device):
"""Create a mock environment for testing."""
env = Mock()
env.num_envs = 4
env.device = device
return env
@pytest.fixture
def action_term_cfg():
"""Create a simple action term config."""
cfg = Mock()
cfg.build = _make_mock_action_term(action_dim=3)
cfg.entity_name = "robot"
return cfg
def test_action_history_tracking(mock_env, action_term_cfg, device):
"""Test that action, prev_action, and prev_prev_action track history correctly."""
manager = ActionManager({"action": action_term_cfg}, mock_env)
# Initial state: all zeros.
assert torch.all(manager.action == 0.0)
assert torch.all(manager.prev_action == 0.0)
assert torch.all(manager.prev_prev_action == 0.0)
# Process actions and verify history shifts correctly.
actions = [
torch.tensor([[float(i)] * 3] * mock_env.num_envs, device=device)
for i in range(1, 5)
]
manager.process_action(actions[0])
assert torch.allclose(manager.action, actions[0])
assert torch.all(manager.prev_action == 0.0)
assert torch.all(manager.prev_prev_action == 0.0)
manager.process_action(actions[1])
assert torch.allclose(manager.action, actions[1])
assert torch.allclose(manager.prev_action, actions[0])
assert torch.all(manager.prev_prev_action == 0.0)
manager.process_action(actions[2])
assert torch.allclose(manager.action, actions[2])
assert torch.allclose(manager.prev_action, actions[1])
assert torch.allclose(manager.prev_prev_action, actions[0])
manager.process_action(actions[3])
assert torch.allclose(manager.action, actions[3])
assert torch.allclose(manager.prev_action, actions[2])
assert torch.allclose(manager.prev_prev_action, actions[1])
def test_action_history_reset(mock_env, action_term_cfg, device):
"""Test that reset clears action history for all or specific environments."""
manager = ActionManager({"action": action_term_cfg}, mock_env)
# Populate history.
actions = [
torch.tensor([[float(i)] * 3] * mock_env.num_envs, device=device)
for i in range(1, 4)
]
for a in actions:
manager.process_action(a)
# Partial reset: only envs 0 and 2.
manager.reset(env_ids=torch.tensor([0, 2]))
# Reset envs should be zeros.
for env_id in [0, 2]:
assert torch.all(manager.action[env_id] == 0.0)
assert torch.all(manager.prev_action[env_id] == 0.0)
assert torch.all(manager.prev_prev_action[env_id] == 0.0)
# Non-reset envs should retain history.
for env_id in [1, 3]:
assert torch.allclose(manager.action[env_id], actions[2][env_id])
assert torch.allclose(manager.prev_action[env_id], actions[1][env_id])
assert torch.allclose(manager.prev_prev_action[env_id], actions[0][env_id])
# Full reset.
manager.reset()
assert torch.all(manager.action == 0.0)
assert torch.all(manager.prev_action == 0.0)
assert torch.all(manager.prev_prev_action == 0.0)