41 lines
1.4 KiB
Python
41 lines
1.4 KiB
Python
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import pytest
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from tianshou.policy.base import TrainingStats, TrainingStatsWrapper
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class DummyTrainingStatsWrapper(TrainingStatsWrapper):
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def __init__(self, wrapped_stats: TrainingStats, *, dummy_field: int):
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self.dummy_field = dummy_field
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super().__init__(wrapped_stats)
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class TestStats:
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@staticmethod
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def test_training_stats_wrapper():
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train_stats = TrainingStats(train_time=1.0)
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train_stats.loss_field = 12
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wrapped_train_stats = DummyTrainingStatsWrapper(train_stats, dummy_field=42)
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# basic readout
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assert wrapped_train_stats.train_time == 1.0
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assert wrapped_train_stats.loss_field == 12
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# mutation of TrainingStats fields
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wrapped_train_stats.train_time = 2.0
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wrapped_train_stats.smoothed_loss["foo"] = 50
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assert wrapped_train_stats.train_time == 2.0
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assert wrapped_train_stats.smoothed_loss["foo"] == 50
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# loss stats dict
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assert wrapped_train_stats.get_loss_stats_dict() == {"loss_field": 12, "dummy_field": 42}
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# new fields can't be added
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with pytest.raises(AttributeError):
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wrapped_train_stats.new_loss_field = 90
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# existing fields, wrapped and not-wrapped, can be mutated
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wrapped_train_stats.loss_field = 13
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wrapped_train_stats.dummy_field = 43
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assert wrapped_train_stats.wrapped_stats.loss_field == wrapped_train_stats.loss_field == 13
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