1 from test.test_support import run_unittest, have_unicode

     2 import unittest

     3 import sys

     4 

     5 class TestImplementationComparisons(unittest.TestCase):

     6 

     7     def test_type_comparisons(self):

     8         self.assertTrue(str < int or str > int)

     9         self.assertTrue(int <= str or int >= str)

    10         self.assertTrue(cmp(int, str) != 0)

    11         self.assertTrue(int is int)

    12         self.assertTrue(str == str)

    13         self.assertTrue(int != str)

    14 

    15     def test_cell_comparisons(self):

    16         def f(x):

    17             if x:

    18                 y = 1

    19             def g():

    20                 return x

    21             def h():

    22                 return y

    23             return g, h

    24         g, h = f(0)

    25         g_cell, = g.func_closure

    26         h_cell, = h.func_closure

    27         self.assertTrue(h_cell < g_cell)

    28         self.assertTrue(g_cell >= h_cell)

    29         self.assertEqual(cmp(g_cell, h_cell), 1)

    30         self.assertTrue(g_cell is g_cell)

    31         self.assertTrue(g_cell == g_cell)

    32         self.assertTrue(h_cell == h_cell)

    33         self.assertTrue(g_cell != h_cell)

    34 

    35 def test_main():

    36     run_unittest(TestImplementationComparisons)

    37 

    38 if __name__ == '__main__':

    39     test_main()