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20 lines
760 B
Python
20 lines
760 B
Python
"""Test suite for LambdaActionV0."""
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from gymnasium.experimental.wrappers import LambdaActionV0
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from gymnasium.spaces import Box
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from tests.experimental.wrappers.utils import record_action_step
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from tests.testing_env import GenericTestEnv
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def test_lambda_action_wrapper():
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"""Tests LambdaAction through checking that the action taken is transformed by function."""
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env = GenericTestEnv(step_func=record_action_step)
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wrapped_env = LambdaActionV0(env, lambda action: action - 2, Box(2, 3))
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sampled_action = wrapped_env.action_space.sample()
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assert sampled_action not in env.action_space
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_, _, _, _, info = wrapped_env.step(sampled_action)
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assert info["action"] in env.action_space
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assert sampled_action - 2 == info["action"]
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