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Viewing changes to Lib/test/test_pwd.py

  • Committer: Bazaar Package Importer
  • Author(s): Matthias Klose
  • Date: 2009-03-23 00:01:27 UTC
  • Revision ID: james.westby@ubuntu.com-20090323000127-5fstfxju4ufrhthq
Tags: upstream-3.1~a1+20090322
Import upstream version 3.1~a1+20090322

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Lib/test/test_pwd.py
 
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import unittest
 
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from test import support
 
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import pwd
 
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class PwdTest(unittest.TestCase):
 
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    def test_values(self):
 
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        entries = pwd.getpwall()
 
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        entriesbyname = {}
 
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        entriesbyuid = {}
 
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        for e in entries:
 
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            self.assertEqual(len(e), 7)
 
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            self.assertEqual(e[0], e.pw_name)
 
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            self.assert_(isinstance(e.pw_name, str))
 
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            self.assertEqual(e[1], e.pw_passwd)
 
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            self.assert_(isinstance(e.pw_passwd, str))
 
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            self.assertEqual(e[2], e.pw_uid)
 
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            self.assert_(isinstance(e.pw_uid, int))
 
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            self.assertEqual(e[3], e.pw_gid)
 
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            self.assert_(isinstance(e.pw_gid, int))
 
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            self.assertEqual(e[4], e.pw_gecos)
 
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            self.assert_(isinstance(e.pw_gecos, str))
 
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            self.assertEqual(e[5], e.pw_dir)
 
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            self.assert_(isinstance(e.pw_dir, str))
 
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            self.assertEqual(e[6], e.pw_shell)
 
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            self.assert_(isinstance(e.pw_shell, str))
 
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            # The following won't work, because of duplicate entries
 
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            # for one uid
 
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            #    self.assertEqual(pwd.getpwuid(e.pw_uid), e)
 
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            # instead of this collect all entries for one uid
 
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            # and check afterwards
 
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            entriesbyname.setdefault(e.pw_name, []).append(e)
 
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            entriesbyuid.setdefault(e.pw_uid, []).append(e)
 
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        if len(entries) > 1000:  # Huge passwd file (NIS?) -- skip the rest
 
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            return
 
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        # check whether the entry returned by getpwuid()
 
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        # for each uid is among those from getpwall() for this uid
 
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        for e in entries:
 
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            if not e[0] or e[0] == '+':
 
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                continue # skip NIS entries etc.
 
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            self.assert_(pwd.getpwnam(e.pw_name) in entriesbyname[e.pw_name])
 
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            self.assert_(pwd.getpwuid(e.pw_uid) in entriesbyuid[e.pw_uid])
 
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    def test_errors(self):
 
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        self.assertRaises(TypeError, pwd.getpwuid)
 
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        self.assertRaises(TypeError, pwd.getpwnam)
 
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        self.assertRaises(TypeError, pwd.getpwall, 42)
 
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        # try to get some errors
 
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        bynames = {}
 
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        byuids = {}
 
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        for (n, p, u, g, gecos, d, s) in pwd.getpwall():
 
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            bynames[n] = u
 
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            byuids[u] = n
 
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        allnames = list(bynames.keys())
 
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        namei = 0
 
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        fakename = allnames[namei]
 
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        while fakename in bynames:
 
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            chars = list(fakename)
 
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            for i in range(len(chars)):
 
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                if chars[i] == 'z':
 
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                    chars[i] = 'A'
 
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                    break
 
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                elif chars[i] == 'Z':
 
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                    continue
 
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                else:
 
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                    chars[i] = chr(ord(chars[i]) + 1)
 
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                    break
 
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            else:
 
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                namei = namei + 1
 
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                try:
 
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                    fakename = allnames[namei]
 
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                except IndexError:
 
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                    # should never happen... if so, just forget it
 
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                    break
 
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            fakename = ''.join(chars)
 
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        self.assertRaises(KeyError, pwd.getpwnam, fakename)
 
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        # Choose a non-existent uid.
 
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        fakeuid = 4127
 
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        while fakeuid in byuids:
 
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            fakeuid = (fakeuid * 3) % 0x10000
 
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        self.assertRaises(KeyError, pwd.getpwuid, fakeuid)
 
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def test_main():
 
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    support.run_unittest(PwdTest)
 
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if __name__ == "__main__":
 
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    test_main()