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https://github.com/Farama-Foundation/Gymnasium.git
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bf093c6890
* Remove additional ignores from flake8 * Remove all unused imports * Remove all unused imports * Update flake8 and pyupgrade * F841, removed unused variables * E731, removed lambda assignment to variables * Remove E731, F403, F405, F524 * Remove E722, bare exceptions * Remove E712, compare variable == True or == False to is True or is False * Remove E402, module level import not at top of file * Added --pre-file-ignores * Add --per-file-ignores removing E741, E302 and E704 * Add E741, do not use variables named ‘l’, ‘O’, or ‘I’ to ignore issues in classic control * Fixed issues for pytest==6.2 * Remove unnecessary # noqa * Edit comment with the removal of E302 * Added warnings and declared module, attr for pyright type hinting * Remove unused import * Removed flake8 E302 * Updated flake8 from 3.9.2 to 4.0.1 * Remove unused variable
50 lines
1.2 KiB
Python
50 lines
1.2 KiB
Python
import numpy as np
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import pytest
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import gym
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from gym.wrappers import FrameStack
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try:
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import lz4
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except ImportError:
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lz4 = None
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pytest.importorskip("gym.envs.atari")
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@pytest.mark.parametrize("env_id", ["CartPole-v1", "Pendulum-v1", "Pong-v0"])
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@pytest.mark.parametrize("num_stack", [2, 3, 4])
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@pytest.mark.parametrize(
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"lz4_compress",
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[
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pytest.param(
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True,
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marks=pytest.mark.skipif(
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lz4 is None, reason="Need lz4 to run tests with compression"
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),
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),
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False,
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],
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)
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def test_frame_stack(env_id, num_stack, lz4_compress):
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env = gym.make(env_id)
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shape = env.observation_space.shape
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env = FrameStack(env, num_stack, lz4_compress)
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assert env.observation_space.shape == (num_stack,) + shape
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assert env.observation_space.dtype == env.env.observation_space.dtype
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dup = gym.make(env_id)
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obs = env.reset(seed=0)
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dup_obs = dup.reset(seed=0)
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assert np.allclose(obs[-1], dup_obs)
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for _ in range(num_stack**2):
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action = env.action_space.sample()
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dup_obs, _, _, _ = dup.step(action)
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obs, _, _, _ = env.step(action)
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assert np.allclose(obs[-1], dup_obs)
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assert len(obs) == num_stack
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