mirror of
https://github.com/Farama-Foundation/Gymnasium.git
synced 2025-08-15 19:31:27 +00:00
081c5c1e80
* Add call, get_attr and set_attr methods * Use f-strings and remove assert * Allow tuples in set_attr and move docstrings * Replace CubeCrash by CartPole in tests
273 lines
9.3 KiB
Python
273 lines
9.3 KiB
Python
import pytest
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import numpy as np
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from multiprocessing import TimeoutError
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from gym.spaces import Box, Tuple, Discrete, MultiDiscrete
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from gym.error import AlreadyPendingCallError, NoAsyncCallError, ClosedEnvironmentError
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from tests.vector.utils import (
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CustomSpace,
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make_env,
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make_slow_env,
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make_custom_space_env,
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)
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from gym.vector.async_vector_env import AsyncVectorEnv
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@pytest.mark.parametrize("shared_memory", [True, False])
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def test_create_async_vector_env(shared_memory):
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env_fns = [make_env("CartPole-v1", i) for i in range(8)]
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try:
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env = AsyncVectorEnv(env_fns, shared_memory=shared_memory)
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finally:
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env.close()
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assert env.num_envs == 8
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@pytest.mark.parametrize("shared_memory", [True, False])
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def test_reset_async_vector_env(shared_memory):
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env_fns = [make_env("CartPole-v1", i) for i in range(8)]
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try:
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env = AsyncVectorEnv(env_fns, shared_memory=shared_memory)
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observations = env.reset()
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finally:
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env.close()
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assert isinstance(env.observation_space, Box)
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assert isinstance(observations, np.ndarray)
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assert observations.dtype == env.observation_space.dtype
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assert observations.shape == (8,) + env.single_observation_space.shape
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assert observations.shape == env.observation_space.shape
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@pytest.mark.parametrize("shared_memory", [True, False])
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@pytest.mark.parametrize("use_single_action_space", [True, False])
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def test_step_async_vector_env(shared_memory, use_single_action_space):
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env_fns = [make_env("CartPole-v1", i) for i in range(8)]
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try:
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env = AsyncVectorEnv(env_fns, shared_memory=shared_memory)
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observations = env.reset()
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assert isinstance(env.single_action_space, Discrete)
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assert isinstance(env.action_space, MultiDiscrete)
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if use_single_action_space:
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actions = [env.single_action_space.sample() for _ in range(8)]
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else:
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actions = env.action_space.sample()
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observations, rewards, dones, _ = env.step(actions)
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finally:
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env.close()
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assert isinstance(env.observation_space, Box)
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assert isinstance(observations, np.ndarray)
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assert observations.dtype == env.observation_space.dtype
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assert observations.shape == (8,) + env.single_observation_space.shape
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assert observations.shape == env.observation_space.shape
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assert isinstance(rewards, np.ndarray)
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assert isinstance(rewards[0], (float, np.floating))
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assert rewards.ndim == 1
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assert rewards.size == 8
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assert isinstance(dones, np.ndarray)
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assert dones.dtype == np.bool_
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assert dones.ndim == 1
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assert dones.size == 8
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@pytest.mark.parametrize("shared_memory", [True, False])
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def test_call_async_vector_env(shared_memory):
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env_fns = [make_env("CartPole-v1", i) for i in range(4)]
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try:
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env = AsyncVectorEnv(env_fns, shared_memory=shared_memory)
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_ = env.reset()
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images = env.call("render", mode="rgb_array")
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gravity = env.call("gravity")
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finally:
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env.close()
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assert isinstance(images, tuple)
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assert len(images) == 4
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for i in range(4):
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assert isinstance(images[i], np.ndarray)
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assert isinstance(gravity, tuple)
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assert len(gravity) == 4
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for i in range(4):
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assert isinstance(gravity[i], float)
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assert gravity[i] == 9.8
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@pytest.mark.parametrize("shared_memory", [True, False])
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def test_set_attr_async_vector_env(shared_memory):
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env_fns = [make_env("CartPole-v1", i) for i in range(4)]
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try:
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env = AsyncVectorEnv(env_fns, shared_memory=shared_memory)
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env.set_attr("gravity", [9.81, 3.72, 8.87, 1.62])
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gravity = env.get_attr("gravity")
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assert gravity == (9.81, 3.72, 8.87, 1.62)
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finally:
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env.close()
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@pytest.mark.parametrize("shared_memory", [True, False])
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def test_copy_async_vector_env(shared_memory):
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env_fns = [make_env("CartPole-v1", i) for i in range(8)]
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try:
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env = AsyncVectorEnv(env_fns, shared_memory=shared_memory, copy=True)
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observations = env.reset()
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observations[0] = 0
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finally:
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env.close()
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@pytest.mark.parametrize("shared_memory", [True, False])
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def test_no_copy_async_vector_env(shared_memory):
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env_fns = [make_env("CartPole-v1", i) for i in range(8)]
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try:
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env = AsyncVectorEnv(env_fns, shared_memory=shared_memory, copy=False)
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observations = env.reset()
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observations[0] = 0
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finally:
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env.close()
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@pytest.mark.parametrize("shared_memory", [True, False])
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def test_reset_timeout_async_vector_env(shared_memory):
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env_fns = [make_slow_env(0.3, i) for i in range(4)]
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with pytest.raises(TimeoutError):
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try:
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env = AsyncVectorEnv(env_fns, shared_memory=shared_memory)
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env.reset_async()
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observations = env.reset_wait(timeout=0.1)
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finally:
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env.close(terminate=True)
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@pytest.mark.parametrize("shared_memory", [True, False])
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def test_step_timeout_async_vector_env(shared_memory):
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env_fns = [make_slow_env(0.0, i) for i in range(4)]
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with pytest.raises(TimeoutError):
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try:
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env = AsyncVectorEnv(env_fns, shared_memory=shared_memory)
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observations = env.reset()
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env.step_async([0.1, 0.1, 0.3, 0.1])
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observations, rewards, dones, _ = env.step_wait(timeout=0.1)
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finally:
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env.close(terminate=True)
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@pytest.mark.filterwarnings("ignore::UserWarning")
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@pytest.mark.parametrize("shared_memory", [True, False])
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def test_reset_out_of_order_async_vector_env(shared_memory):
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env_fns = [make_env("CartPole-v1", i) for i in range(4)]
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with pytest.raises(NoAsyncCallError):
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try:
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env = AsyncVectorEnv(env_fns, shared_memory=shared_memory)
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observations = env.reset_wait()
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except NoAsyncCallError as exception:
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assert exception.name == "reset"
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raise
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finally:
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env.close(terminate=True)
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with pytest.raises(AlreadyPendingCallError):
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try:
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env = AsyncVectorEnv(env_fns, shared_memory=shared_memory)
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actions = env.action_space.sample()
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observations = env.reset()
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env.step_async(actions)
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env.reset_async()
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except NoAsyncCallError as exception:
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assert exception.name == "step"
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raise
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finally:
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env.close(terminate=True)
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@pytest.mark.filterwarnings("ignore::UserWarning")
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@pytest.mark.parametrize("shared_memory", [True, False])
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def test_step_out_of_order_async_vector_env(shared_memory):
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env_fns = [make_env("CartPole-v1", i) for i in range(4)]
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with pytest.raises(NoAsyncCallError):
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try:
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env = AsyncVectorEnv(env_fns, shared_memory=shared_memory)
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actions = env.action_space.sample()
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observations = env.reset()
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observations, rewards, dones, infos = env.step_wait()
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except AlreadyPendingCallError as exception:
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assert exception.name == "step"
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raise
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finally:
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env.close(terminate=True)
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with pytest.raises(AlreadyPendingCallError):
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try:
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env = AsyncVectorEnv(env_fns, shared_memory=shared_memory)
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actions = env.action_space.sample()
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env.reset_async()
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env.step_async(actions)
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except AlreadyPendingCallError as exception:
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assert exception.name == "reset"
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raise
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finally:
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env.close(terminate=True)
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@pytest.mark.parametrize("shared_memory", [True, False])
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def test_already_closed_async_vector_env(shared_memory):
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env_fns = [make_env("CartPole-v1", i) for i in range(4)]
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with pytest.raises(ClosedEnvironmentError):
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env = AsyncVectorEnv(env_fns, shared_memory=shared_memory)
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env.close()
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observations = env.reset()
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@pytest.mark.parametrize("shared_memory", [True, False])
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def test_check_spaces_async_vector_env(shared_memory):
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# CartPole-v1 - observation_space: Box(4,), action_space: Discrete(2)
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env_fns = [make_env("CartPole-v1", i) for i in range(8)]
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# FrozenLake-v1 - Discrete(16), action_space: Discrete(4)
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env_fns[1] = make_env("FrozenLake-v1", 1)
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with pytest.raises(RuntimeError):
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env = AsyncVectorEnv(env_fns, shared_memory=shared_memory)
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env.close(terminate=True)
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def test_custom_space_async_vector_env():
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env_fns = [make_custom_space_env(i) for i in range(4)]
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try:
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env = AsyncVectorEnv(env_fns, shared_memory=False)
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reset_observations = env.reset()
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assert isinstance(env.single_action_space, CustomSpace)
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assert isinstance(env.action_space, Tuple)
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actions = ("action-2", "action-3", "action-5", "action-7")
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step_observations, rewards, dones, _ = env.step(actions)
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finally:
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env.close()
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assert isinstance(env.single_observation_space, CustomSpace)
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assert isinstance(env.observation_space, Tuple)
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assert isinstance(reset_observations, tuple)
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assert reset_observations == ("reset", "reset", "reset", "reset")
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assert isinstance(step_observations, tuple)
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assert step_observations == (
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"step(action-2)",
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"step(action-3)",
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"step(action-5)",
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"step(action-7)",
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)
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def test_custom_space_async_vector_env_shared_memory():
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env_fns = [make_custom_space_env(i) for i in range(4)]
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with pytest.raises(ValueError):
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env = AsyncVectorEnv(env_fns, shared_memory=True)
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env.close(terminate=True)
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