Merged revisions 78548 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

................
  r78548 | gregory.p.smith | 2010-02-28 21:54:14 -0800 (Sun, 28 Feb 2010) | 10 lines

  Merged revisions 78546 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

  ........
    r78546 | gregory.p.smith | 2010-02-28 21:43:43 -0800 (Sun, 28 Feb 2010) | 3 lines

    Fixes issue #7999: os.setreuid() and os.setregid() would refuse to accept
    a -1 parameter on some platforms such as OS X.
  ........
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diff --git a/Lib/test/test_os.py b/Lib/test/test_os.py
index d7f763f..2d95f62 100644
--- a/Lib/test/test_os.py
+++ b/Lib/test/test_os.py
@@ -717,6 +717,7 @@
                     self.assertRaises(os.error, os.setreuid, 0, 0)
                 self.assertRaises(OverflowError, os.setreuid, 1<<32, 0)
                 self.assertRaises(OverflowError, os.setreuid, 0, 1<<32)
+                os.setreuid(-1, -1)  # Does nothing, but it needs to accept -1
 
         if hasattr(os, 'setregid'):
             def test_setregid(self):
@@ -724,6 +725,7 @@
                     self.assertRaises(os.error, os.setregid, 0, 0)
                 self.assertRaises(OverflowError, os.setregid, 1<<32, 0)
                 self.assertRaises(OverflowError, os.setregid, 0, 1<<32)
+                os.setregid(-1, -1)  # Does nothing, but it needs to accept -1
 
     @unittest.skipIf(sys.platform == 'darwin', "tests don't apply to OS X")
     class Pep383Tests(unittest.TestCase):