cpython/Lib/test/test_abstract_numbers.py

63 lines
2.1 KiB
Python

"""Unit tests for numbers.py."""
import unittest
from test import test_support
from numbers import Number
from numbers import Exact, Inexact
from numbers import Complex, Real, Rational, Integral
import operator
class TestNumbers(unittest.TestCase):
def test_int(self):
self.failUnless(issubclass(int, Integral))
self.failUnless(issubclass(int, Complex))
self.failUnless(issubclass(int, Exact))
self.failIf(issubclass(int, Inexact))
self.assertEqual(7, int(7).real)
self.assertEqual(0, int(7).imag)
self.assertEqual(7, int(7).conjugate())
self.assertEqual(7, int(7).numerator)
self.assertEqual(1, int(7).denominator)
def test_long(self):
self.failUnless(issubclass(long, Integral))
self.failUnless(issubclass(long, Complex))
self.failUnless(issubclass(long, Exact))
self.failIf(issubclass(long, Inexact))
self.assertEqual(7, long(7).real)
self.assertEqual(0, long(7).imag)
self.assertEqual(7, long(7).conjugate())
self.assertEqual(7, long(7).numerator)
self.assertEqual(1, long(7).denominator)
def test_float(self):
self.failIf(issubclass(float, Rational))
self.failUnless(issubclass(float, Real))
self.failIf(issubclass(float, Exact))
self.failUnless(issubclass(float, Inexact))
self.assertEqual(7.3, float(7.3).real)
self.assertEqual(0, float(7.3).imag)
self.assertEqual(7.3, float(7.3).conjugate())
def test_complex(self):
self.failIf(issubclass(complex, Real))
self.failUnless(issubclass(complex, Complex))
self.failIf(issubclass(complex, Exact))
self.failUnless(issubclass(complex, Inexact))
c1, c2 = complex(3, 2), complex(4,1)
# XXX: This is not ideal, but see the comment in builtin_trunc().
self.assertRaises(AttributeError, trunc, c1)
self.assertRaises(TypeError, float, c1)
self.assertRaises(TypeError, int, c1)
def test_main():
test_support.run_unittest(TestNumbers)
if __name__ == "__main__":
unittest.main()