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43 lines
1.3 KiB
Python
43 lines
1.3 KiB
Python
"""Test compiler changes for unary ops (+, -, ~) introduced in Python 2.2"""
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import unittest
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from test_support import run_unittest
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class UnaryOpTestCase(unittest.TestCase):
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def test_negative(self):
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self.assert_(-2 == 0 - 2)
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self.assert_(-0 == 0)
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self.assert_(--2 == 2)
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self.assert_(-2L == 0 - 2L)
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self.assert_(-2.0 == 0 - 2.0)
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self.assert_(-2j == 0 - 2j)
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def test_positive(self):
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self.assert_(+2 == 2)
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self.assert_(+0 == 0)
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self.assert_(++2 == 2)
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self.assert_(+2L == 2L)
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self.assert_(+2.0 == 2.0)
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self.assert_(+2j == 2j)
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def test_invert(self):
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self.assert_(-2 == 0 - 2)
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self.assert_(-0 == 0)
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self.assert_(--2 == 2)
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self.assert_(-2L == 0 - 2L)
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def test_overflow(self):
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self.assertRaises(OverflowError, eval, "+" + ("9" * 32))
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self.assertRaises(OverflowError, eval, "-" + ("9" * 32))
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self.assertRaises(OverflowError, eval, "~" + ("9" * 32))
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def test_bad_types(self):
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for op in '+', '-', '~':
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self.assertRaises(TypeError, eval, op + "'a'")
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self.assertRaises(TypeError, eval, op + "u'a'")
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self.assertRaises(TypeError, eval, "~2j")
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self.assertRaises(TypeError, eval, "~2.0")
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run_unittest(UnaryOpTestCase)
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