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27f8e85051
Co-authored-by: Kallinteris Andreas <30759571+Kallinteris-Andreas@users.noreply.github.com> Co-authored-by: Jet <38184875+jjshoots@users.noreply.github.com> Co-authored-by: Omar Younis <42100908+younik@users.noreply.github.com>
34 lines
1.1 KiB
Python
34 lines
1.1 KiB
Python
"""Test suite for NormalizeObservation wrapper."""
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from gymnasium.wrappers import NormalizeObservation
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from tests.testing_env import GenericTestEnv
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def test_update_running_mean_property():
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"""Tests that the property `_update_running_mean` freezes/continues the running statistics updating."""
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env = GenericTestEnv()
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wrapped_env = NormalizeObservation(env)
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# Default value is True
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assert wrapped_env.update_running_mean
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wrapped_env.reset()
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rms_var_init = wrapped_env.obs_rms.var
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rms_mean_init = wrapped_env.obs_rms.mean
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# Statistics are updated when env.step()
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wrapped_env.step(None)
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rms_var_updated = wrapped_env.obs_rms.var
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rms_mean_updated = wrapped_env.obs_rms.mean
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assert rms_var_init != rms_var_updated
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assert rms_mean_init != rms_mean_updated
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# Assure property is set
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wrapped_env.update_running_mean = False
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assert not wrapped_env.update_running_mean
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# Statistics are frozen
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wrapped_env.step(None)
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assert rms_var_updated == wrapped_env.obs_rms.var
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assert rms_mean_updated == wrapped_env.obs_rms.mean
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