#! /usr/bin/env python
"""Test the errno module
Roger E. Masse
"""
import errno
from test import support
import unittest
std_c_errors = frozenset(['EDOM', 'ERANGE'])
class ErrnoAttributeTests(unittest.TestCase):
def test_for_improper_attributes(self):
# No unexpected attributes should be on the module.
for error_code in std_c_errors:
self.assertTrue(hasattr(errno, error_code),
"errno is missing %s" % error_code)
def test_using_errorcode(self):
# Every key value in errno.errorcode should be on the module.
for value in errno.errorcode.values():
self.assertTrue(hasattr(errno, value), 'no %s attr in errno' % value)
class ErrorcodeTests(unittest.TestCase):
def test_attributes_in_errorcode(self):
for attribute in errno.__dict__.keys():
if attribute.isupper():
self.assertTrue(getattr(errno, attribute) in errno.errorcode,
'no %s attr in errno.errorcode' % attribute)
def test_main():
support.run_unittest(ErrnoAttributeTests, ErrorcodeTests)
if __name__ == '__main__':
test_main()
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