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39 lines
1.2 KiB
Python
39 lines
1.2 KiB
Python
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"""Test suite for GrayscaleObservationV0."""
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import numpy as np
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from gymnasium.experimental.wrappers import GrayscaleObservationV0
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from gymnasium.spaces import Box
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from tests.experimental.wrappers.utils import (
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check_obs,
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record_random_obs_reset,
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record_random_obs_step,
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)
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from tests.testing_env import GenericTestEnv
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def test_grayscale_observation_wrapper():
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"""Tests the ``GrayscaleObservation`` that the observation is grayscale."""
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env = GenericTestEnv(
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observation_space=Box(0, 255, shape=(25, 25, 3), dtype=np.uint8),
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reset_func=record_random_obs_reset,
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step_func=record_random_obs_step,
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)
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wrapped_env = GrayscaleObservationV0(env)
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obs, info = wrapped_env.reset()
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check_obs(env, wrapped_env, obs, info["obs"])
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assert obs.shape == (25, 25)
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obs, _, _, _, info = wrapped_env.step(None)
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check_obs(env, wrapped_env, obs, info["obs"])
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# Keep_dim
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wrapped_env = GrayscaleObservationV0(env, keep_dim=True)
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obs, info = wrapped_env.reset()
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check_obs(env, wrapped_env, obs, info["obs"])
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assert obs.shape == (25, 25, 1)
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obs, _, _, _, info = wrapped_env.step(None)
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check_obs(env, wrapped_env, obs, info["obs"])
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