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//usr/local/lib/python3.9/test/test_abstract_numbers.py
"""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()