/Lib/test/test_pwd.py
http://unladen-swallow.googlecode.com/ · Python · 100 lines · 72 code · 14 blank · 14 comment · 15 complexity · eb041dabd6fe401da62971ef795686be MD5 · raw file
- import sys
- import unittest
- from test import test_support
- import pwd
- class PwdTest(unittest.TestCase):
- def test_values(self):
- entries = pwd.getpwall()
- entriesbyname = {}
- entriesbyuid = {}
- for e in entries:
- self.assertEqual(len(e), 7)
- self.assertEqual(e[0], e.pw_name)
- self.assert_(isinstance(e.pw_name, basestring))
- self.assertEqual(e[1], e.pw_passwd)
- self.assert_(isinstance(e.pw_passwd, basestring))
- self.assertEqual(e[2], e.pw_uid)
- self.assert_(isinstance(e.pw_uid, int))
- self.assertEqual(e[3], e.pw_gid)
- self.assert_(isinstance(e.pw_gid, int))
- self.assertEqual(e[4], e.pw_gecos)
- self.assert_(isinstance(e.pw_gecos, basestring))
- self.assertEqual(e[5], e.pw_dir)
- self.assert_(isinstance(e.pw_dir, basestring))
- self.assertEqual(e[6], e.pw_shell)
- self.assert_(isinstance(e.pw_shell, basestring))
- # The following won't work, because of duplicate entries
- # for one uid
- # self.assertEqual(pwd.getpwuid(e.pw_uid), e)
- # instead of this collect all entries for one uid
- # and check afterwards
- entriesbyname.setdefault(e.pw_name, []).append(e)
- entriesbyuid.setdefault(e.pw_uid, []).append(e)
- if len(entries) > 1000: # Huge passwd file (NIS?) -- skip the rest
- return
- # check whether the entry returned by getpwuid()
- # for each uid is among those from getpwall() for this uid
- for e in entries:
- if not e[0] or e[0] == '+':
- continue # skip NIS entries etc.
- self.assert_(pwd.getpwnam(e.pw_name) in entriesbyname[e.pw_name])
- self.assert_(pwd.getpwuid(e.pw_uid) in entriesbyuid[e.pw_uid])
- def test_errors(self):
- self.assertRaises(TypeError, pwd.getpwuid)
- self.assertRaises(TypeError, pwd.getpwnam)
- self.assertRaises(TypeError, pwd.getpwall, 42)
- # try to get some errors
- bynames = {}
- byuids = {}
- for (n, p, u, g, gecos, d, s) in pwd.getpwall():
- bynames[n] = u
- byuids[u] = n
- allnames = bynames.keys()
- namei = 0
- fakename = allnames[namei]
- while fakename in bynames:
- chars = list(fakename)
- for i in xrange(len(chars)):
- if chars[i] == 'z':
- chars[i] = 'A'
- break
- elif chars[i] == 'Z':
- continue
- else:
- chars[i] = chr(ord(chars[i]) + 1)
- break
- else:
- namei = namei + 1
- try:
- fakename = allnames[namei]
- except IndexError:
- # should never happen... if so, just forget it
- break
- fakename = ''.join(chars)
- self.assertRaises(KeyError, pwd.getpwnam, fakename)
- # In some cases, byuids isn't a complete list of all users in the
- # system, so if we try to pick a value not in byuids (via a perturbing
- # loop, say), pwd.getpwuid() might still be able to find data for that
- # uid. Using sys.maxint may provoke the same problems, but hopefully
- # it will be a more repeatable failure.
- fakeuid = sys.maxint
- self.failIf(fakeuid in byuids)
- self.assertRaises(KeyError, pwd.getpwuid, fakeuid)
- def test_main():
- test_support.run_unittest(PwdTest)
- if __name__ == "__main__":
- test_main()