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1 files changed, 40 insertions, 0 deletions

diff --git a/src/python/stdlib/test/test_errno.py b/src/python/stdlib/test/test_errno.py
new file mode 100755
index 0000000..bb8918f
--- /dev/null
+++ b/src/python/stdlib/test/test_errno.py
@@ -0,0 +1,40 @@
+#! /usr/bin/env python
+"""Test the errno module
+   Roger E. Masse
+"""
+
+import errno
+from test import test_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.itervalues():
+            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__.iterkeys():
+            if attribute.isupper():
+                self.assertIn(getattr(errno, attribute), errno.errorcode,
+                              'no %s attr in errno.errorcode' % attribute)
+
+
+def test_main():
+    test_support.run_unittest(ErrnoAttributeTests, ErrorcodeTests)
+
+
+if __name__ == '__main__':
+    test_main()