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27 lines
725 B
Python
27 lines
725 B
Python
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"""Tests for the shared ``as_float`` coercion helper."""
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from __future__ import annotations
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from python_pkg.shared.coerce import as_float
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def test_bool_rejected() -> None:
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"""Booleans coerce to 0.0 despite subclassing ``int``."""
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true_value: bool = True
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false_value: bool = False
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assert as_float(true_value) == 0.0
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assert as_float(false_value) == 0.0
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def test_numeric_coerced() -> None:
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"""ints and floats coerce to a float value."""
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assert as_float(3) == 3.0
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assert as_float(2.5) == 2.5
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def test_non_numeric_is_zero() -> None:
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"""Strings, ``None`` and other types yield 0.0."""
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assert as_float("abc") == 0.0
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assert as_float(None) == 0.0
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assert as_float([1, 2]) == 0.0
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