39 lines
1.6 KiB
Python
39 lines
1.6 KiB
Python
from __future__ import annotations
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import math
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import unittest
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from backend.data.numbers import finite_number, non_nan_number
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from backend.data.providers import tushare_client
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from backend.features.market import insights
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from backend.features.screener import engine as screener_engine
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from backend.features.sentiment import engine as sentiment_engine
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class NumericNormalizationTests(unittest.TestCase):
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def test_consumers_use_their_declared_shared_policy(self) -> None:
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self.assertIs(tushare_client._number, finite_number)
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self.assertIs(screener_engine._number, finite_number)
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self.assertIs(insights._number, non_nan_number)
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self.assertIs(sentiment_engine._number, non_nan_number)
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def test_finite_policy_preserves_existing_results(self) -> None:
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self.assertEqual(finite_number("12.5"), 12.5)
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self.assertEqual(finite_number(None), 0.0)
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self.assertEqual(finite_number("invalid", 7.0), 7.0)
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self.assertEqual(finite_number(math.nan, 7.0), 7.0)
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self.assertEqual(finite_number(math.inf, 7.0), 7.0)
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self.assertEqual(finite_number(-math.inf, 7.0), 7.0)
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def test_non_nan_policy_keeps_infinity_but_rejects_nan(self) -> None:
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self.assertEqual(non_nan_number("12.5"), 12.5)
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self.assertEqual(non_nan_number(None), 0.0)
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self.assertEqual(non_nan_number("invalid", 7.0), 7.0)
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self.assertEqual(non_nan_number(math.nan, 7.0), 7.0)
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self.assertEqual(non_nan_number(math.inf, 7.0), math.inf)
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self.assertEqual(non_nan_number(-math.inf, 7.0), -math.inf)
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if __name__ == "__main__":
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unittest.main()
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