30 lines
697 B
Python
30 lines
697 B
Python
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"""Tests for the `lalib.fields.rational.RationalField` only."""
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import fractions
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import pytest
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from lalib import fields
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Q = fields.Q
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class TestCastAndValidateFieldElements:
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"""Test specifics for `Q.cast()` and `Q.validate()`."""
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@pytest.mark.parametrize(
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"value",
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["1", "0", "1/1", "0/1", "+42", "-42", "+42/1", "-42/1"],
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)
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def test_str_is_field_element(self, value):
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"""`fractions.Fraction()` also accepts `str`ings.
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Source: https://docs.python.org/3/library/fractions.html#fractions.Fraction
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"""
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left = Q.cast(value)
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right = fractions.Fraction(value)
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assert left == right
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assert Q.validate(value)
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