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[3.12] gh-130230: Add new tests for 3-arg pow() with Decimal (GH-130237) (GH-130247)

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(cherry picked from commit b93b7e566e)
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Serhiy Storchaka 2025-02-18 10:18:40 +02:00 • committed by GitHub
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commit 4a6415cbac
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Lib/test/test_decimal.py
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@ -4463,6 +4463,15 @@ def test_implicit_context(self):
self.assertIs(Decimal("NaN").fma(7, 1).is_nan(), True)
# three arg power
self.assertEqual(pow(Decimal(10), 2, 7), 2)
if self.decimal == C:
self.assertEqual(pow(10, Decimal(2), 7), 2)
self.assertEqual(pow(10, 2, Decimal(7)), 2)
else:
# XXX: Three-arg power doesn't use __rpow__.
self.assertRaises(TypeError, pow, 10, Decimal(2), 7)
# XXX: There is no special method to dispatch on the
# third arg of three-arg power.
self.assertRaises(TypeError, pow, 10, 2, Decimal(7))
# exp
self.assertEqual(Decimal("1.01").exp(), 3)
# is_normal