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