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@@ -832,6 +832,11 @@ def test_inf_nan(self):
832832self.assertRaises(TypeError, round, NAN, "ceci n'est pas un integer")
833833self.assertRaises(TypeError, round, -0.0, 1j)
834834835+deftest_inf_nan_ndigits(self):
836+self.assertEqual(round(INF, 0), INF)
837+self.assertEqual(round(-INF, 0), -INF)
838+self.assertTrue(math.isnan(round(NAN, 0)))
839+835840deftest_large_n(self):
836841fornin [324, 325, 400, 2**31-1, 2**31, 2**32, 2**100]:
837842self.assertEqual(round(123.456, n), 123.456)