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[3.13] Test also error messages in test_limit_int. (GH-134018) (GH-134032)

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(cherry picked from commit e123a1d09b)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
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Miss Islington (bot) 2025-05-15 09:45:00 +02:00 • committed by GitHub
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15
Lib/test/test_fractions.py
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@ -462,22 +462,23 @@ class FractionTest(unittest.TestCase):
def test_limit_int(self):
maxdigits = 5000
with adjust_int_max_str_digits(maxdigits):
msg = 'Exceeds the limit'
val = '1' * maxdigits
num = (10**maxdigits - 1)//9
self.assertEqual((num, 1), _components(F(val)))
self.assertRaises(ValueError, F, val + '1')
self.assertRaisesRegex(ValueError, msg, F, val + '1')
self.assertEqual((num, 2), _components(F(val + '/2')))
self.assertRaises(ValueError, F, val + '1/2')
self.assertRaisesRegex(ValueError, msg, F, val + '1/2')
self.assertEqual((1, num), _components(F('1/' + val)))
self.assertRaises(ValueError, F, '1/1' + val)
self.assertRaisesRegex(ValueError, msg, F, '1/1' + val)
self.assertEqual(((10**(maxdigits+1) - 1)//9, 10**maxdigits),
_components(F('1.' + val)))
self.assertRaises(ValueError, F, '1.1' + val)
self.assertRaisesRegex(ValueError, msg, F, '1.1' + val)
self.assertEqual((num, 10**maxdigits), _components(F('.' + val)))
self.assertRaises(ValueError, F, '.1' + val)
self.assertRaises(ValueError, F, '1.1e1' + val)
self.assertRaisesRegex(ValueError, msg, F, '.1' + val)
self.assertRaisesRegex(ValueError, msg, F, '1.1e1' + val)
self.assertEqual((11, 10), _components(F('1.1e' + '0' * maxdigits)))
self.assertRaises(ValueError, F, '1.1e' + '0' * (maxdigits+1))
self.assertRaisesRegex(ValueError, msg, F, '1.1e' + '0' * (maxdigits+1))
def testImmutable(self):
r = F(7, 3)