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gh-154945: add regression test for NormalDist.quantiles(n < 1) #155015

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gh-154945: add regression test for NormalDist.quantiles(n < 1) #155015

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6 changes: 6 additions & 0 deletions Lib/test/test_statistics.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3105,6 +3105,12 @@ def test_quantiles(self):
self.assertTrue(all(math.isclose(e, a, abs_tol=0.0001)
for e, a in zip(expected, actual)))

def test_quantiles_invalid_n(self):
Z = self.module.NormalDist()
with self.assertRaises(self.module.StatisticsError) as cm:
Z.quantiles(0)
self.assertEqual(str(cm.exception), 'n must be at least 1')

def test_overlap(self):
NormalDist = self.module.NormalDist

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