Method test_decimal_nan

Lib/test/test_statistics.py:759–768

(self)

            self.assertEqual(type(ratio[0]), type(nan))

    def test_decimal_nan(self):
        NAN = Decimal("NAN")
        sNAN = Decimal("sNAN")
        class MyDecimal(Decimal):
            pass
        for nan in (NAN, MyDecimal(NAN), sNAN, MyDecimal(sNAN)):
            ratio = statistics._exact_ratio(nan)
            self.assertTrue(_nan_equal(ratio[0], nan))
            self.assertIs(ratio[1], None)
            self.assertEqual(type(ratio[0]), type(nan))


class DecimalToRatioTest(unittest.TestCase):