Initial commit of OpenSPARC T2 architecture model.

[OpenSPARC-T2-SAM] / sam-t2 / devtools / amd64 / lib / python2.4 / test / test_unary.py

"""Test compiler changes for unary ops (+, -, ~) introduced in Python 2.2"""

import unittest
from test.test_support import run_unittest, have_unicode

class UnaryOpTestCase(unittest.TestCase):

   def test_negative(self):
       self.assert_(-2 == 0 - 2)
       self.assert_(-0 == 0)
       self.assert_(--2 == 2)
       self.assert_(-2L == 0 - 2L)
       self.assert_(-2.0 == 0 - 2.0)
       self.assert_(-2j == 0 - 2j)

   def test_positive(self):
       self.assert_(+2 == 2)
       self.assert_(+0 == 0)
       self.assert_(++2 == 2)
       self.assert_(+2L == 2L)
       self.assert_(+2.0 == 2.0)
       self.assert_(+2j == 2j)

   def test_invert(self):
       self.assert_(-2 == 0 - 2)
       self.assert_(-0 == 0)
       self.assert_(--2 == 2)
       self.assert_(-2L == 0 - 2L)

   def test_no_overflow(self):
       nines = "9" * 32
       self.assert_(eval("+" + nines) == eval("+" + nines + "L"))
       self.assert_(eval("-" + nines) == eval("-" + nines + "L"))
       self.assert_(eval("~" + nines) == eval("~" + nines + "L"))

   def test_negation_of_exponentiation(self):
       # Make sure '**' does the right thing; these form a
       # regression test for SourceForge bug #456756.
       self.assertEqual(-2 ** 3, -8)
       self.assertEqual((-2) ** 3, -8)
       self.assertEqual(-2 ** 4, -16)
       self.assertEqual((-2) ** 4, 16)

   def test_bad_types(self):
       for op in '+', '-', '~':
           self.assertRaises(TypeError, eval, op + "'a'")
           if have_unicode:
               self.assertRaises(TypeError, eval, op + "u'a'")

       self.assertRaises(TypeError, eval, "~2j")
       self.assertRaises(TypeError, eval, "~2.0")


def test_main():
   run_unittest(UnaryOpTestCase)


if __name__ == "__main__":
   test_main()