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"""Unit tests for numbers.py."""
import math
import operator
import unittest
from numbers import Complex, Real, Rational, Integral
class TestNumbers(unittest.TestCase):
def test_int(self):
self.assertTrue(issubclass(int, Integral))
self.assertTrue(issubclass(int, Complex))
self.assertEqual(7, int(7).real)
self.assertEqual(0, int(7).imag)
self.assertEqual(7, int(7).conjugate())
self.assertEqual(-7, int(-7).conjugate())
self.assertEqual(7, int(7).numerator)
self.assertEqual(1, int(7).denominator)
def test_float(self):
self.assertFalse(issubclass(float, Rational))
self.assertTrue(issubclass(float, Real))
self.assertEqual(7.3, float(7.3).real)
self.assertEqual(0, float(7.3).imag)
self.assertEqual(7.3, float(7.3).conjugate())
self.assertEqual(-7.3, float(-7.3).conjugate())
def test_complex(self):
self.assertFalse(issubclass(complex, Real))
self.assertTrue(issubclass(complex, Complex))
c1, c2 = complex(3, 2), complex(4,1)
# XXX: This is not ideal, but see the comment in math_trunc().
self.assertRaises(TypeError, math.trunc, c1)
self.assertRaises(TypeError, operator.mod, c1, c2)
self.assertRaises(TypeError, divmod, c1, c2)
self.assertRaises(TypeError, operator.floordiv, c1, c2)
self.assertRaises(TypeError, float, c1)
self.assertRaises(TypeError, int, c1)
if __name__ == "__main__":
unittest.main()