Lib/test/test_errno.py

   1 #! /usr/bin/env python
   2 """Test the errno module
   3    Roger E. Masse
   4 """
   5
   6 import errno
   7 from test import test_support
   8 import unittest
   9
  10 std_c_errors = frozenset(['EDOM', 'ERANGE'])
  11
  12 class ErrnoAttributeTests(unittest.TestCase):
  13
  14     def test_for_improper_attributes(self):
  15         # No unexpected attributes should be on the module.
  16         for error_code in std_c_errors:
  17             self.assertTrue(hasattr(errno, error_code),
  18                             "errno is missing %s" % error_code)
  19
  20     def test_using_errorcode(self):
  21         # Every key value in errno.errorcode should be on the module.
  22         for value in errno.errorcode.itervalues():
  23             self.assertTrue(hasattr(errno, value), 'no %s attr in errno' % value)
  24
  25
  26 class ErrorcodeTests(unittest.TestCase):
  27
  28     def test_attributes_in_errorcode(self):
  29         for attribute in errno.__dict__.iterkeys():
  30             if attribute.isupper():
  31                 self.assertIn(getattr(errno, attribute), errno.errorcode,
  32                               'no %s attr in errno.errorcode' % attribute)
  33
  34
  35 def test_main():
  36     test_support.run_unittest(ErrnoAttributeTests, ErrorcodeTests)
  37
  38
  39 if __name__ == '__main__':
  40     test_main()