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14 lines
420 B
Python
14 lines
420 B
Python
"""Regression: optimize_dataframe must tolerate empty object columns."""
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import pandas as pd
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from parallel_processing import optimize_dataframe
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def test_optimize_empty_object_columns():
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df = pd.DataFrame({
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"model_a": pd.Series([], dtype=object),
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"model_b": pd.Series([], dtype=object),
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"winner": pd.Series([], dtype=object),
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})
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out = optimize_dataframe(df)
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assert len(out) == 0
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