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12 lines
415 B
Python
12 lines
415 B
Python
"""Regression: prepare_animation_data must tolerate empty history."""
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import pandas as pd
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from animation import prepare_animation_data
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def test_empty_history_returns_empty_frames():
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df = pd.DataFrame(columns=["date", "model", "rating", "rank", "matches", "wins"])
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data = prepare_animation_data(df)
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assert data["frames"] == []
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assert data["total_frames"] == 0
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assert data["start_date"] is None
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