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Python Source  |  2011-02-15  |  1.1 KB  |  40 lines
  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()
  40.