| 1 | import sys
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| 2 | import unittest
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| 3 | from test import test_support
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| 4 |
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| 5 | pwd = test_support.import_module('pwd')
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| 6 |
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| 7 | class PwdTest(unittest.TestCase):
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| 8 |
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| 9 | def test_values(self):
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| 10 | entries = pwd.getpwall()
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| 11 | entriesbyname = {}
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| 12 | entriesbyuid = {}
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| 13 |
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| 14 | for e in entries:
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| 15 | self.assertEqual(len(e), 7)
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| 16 | self.assertEqual(e[0], e.pw_name)
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| 17 | self.assertIsInstance(e.pw_name, basestring)
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| 18 | self.assertEqual(e[1], e.pw_passwd)
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| 19 | self.assertIsInstance(e.pw_passwd, basestring)
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| 20 | self.assertEqual(e[2], e.pw_uid)
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| 21 | self.assertIsInstance(e.pw_uid, (int, long))
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| 22 | self.assertEqual(e[3], e.pw_gid)
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| 23 | self.assertIsInstance(e.pw_gid, (int, long))
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| 24 | self.assertEqual(e[4], e.pw_gecos)
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| 25 | self.assertIsInstance(e.pw_gecos, basestring)
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| 26 | self.assertEqual(e[5], e.pw_dir)
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| 27 | self.assertIsInstance(e.pw_dir, basestring)
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| 28 | self.assertEqual(e[6], e.pw_shell)
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| 29 | self.assertIsInstance(e.pw_shell, basestring)
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| 30 |
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| 31 | # The following won't work, because of duplicate entries
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| 32 | # for one uid
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| 33 | # self.assertEqual(pwd.getpwuid(e.pw_uid), e)
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| 34 | # instead of this collect all entries for one uid
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| 35 | # and check afterwards
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| 36 | entriesbyname.setdefault(e.pw_name, []).append(e)
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| 37 | entriesbyuid.setdefault(e.pw_uid, []).append(e)
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| 38 |
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| 39 | if len(entries) > 1000: # Huge passwd file (NIS?) -- skip the rest
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| 40 | return
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| 41 |
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| 42 | # check whether the entry returned by getpwuid()
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| 43 | # for each uid is among those from getpwall() for this uid
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| 44 | for e in entries:
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| 45 | if not e[0] or e[0] == '+':
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| 46 | continue # skip NIS entries etc.
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| 47 | self.assertIn(pwd.getpwnam(e.pw_name), entriesbyname[e.pw_name])
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| 48 | self.assertIn(pwd.getpwuid(e.pw_uid), entriesbyuid[e.pw_uid])
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| 49 |
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| 50 | def test_errors(self):
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| 51 | self.assertRaises(TypeError, pwd.getpwuid)
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| 52 | self.assertRaises(TypeError, pwd.getpwuid, 3.14)
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| 53 | self.assertRaises(TypeError, pwd.getpwnam)
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| 54 | self.assertRaises(TypeError, pwd.getpwnam, 42)
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| 55 | self.assertRaises(TypeError, pwd.getpwall, 42)
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| 56 |
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| 57 | # try to get some errors
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| 58 | bynames = {}
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| 59 | byuids = {}
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| 60 | for (n, p, u, g, gecos, d, s) in pwd.getpwall():
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| 61 | bynames[n] = u
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| 62 | byuids[u] = n
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| 63 |
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| 64 | allnames = bynames.keys()
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| 65 | namei = 0
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| 66 | fakename = allnames[namei]
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| 67 | while fakename in bynames:
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| 68 | chars = list(fakename)
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| 69 | for i in xrange(len(chars)):
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| 70 | if chars[i] == 'z':
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| 71 | chars[i] = 'A'
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| 72 | break
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| 73 | elif chars[i] == 'Z':
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| 74 | continue
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| 75 | else:
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| 76 | chars[i] = chr(ord(chars[i]) + 1)
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| 77 | break
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| 78 | else:
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| 79 | namei = namei + 1
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| 80 | try:
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| 81 | fakename = allnames[namei]
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| 82 | except IndexError:
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| 83 | # should never happen... if so, just forget it
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| 84 | break
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| 85 | fakename = ''.join(chars)
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| 86 |
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| 87 | self.assertRaises(KeyError, pwd.getpwnam, fakename)
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| 88 |
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| 89 | # In some cases, byuids isn't a complete list of all users in the
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| 90 | # system, so if we try to pick a value not in byuids (via a perturbing
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| 91 | # loop, say), pwd.getpwuid() might still be able to find data for that
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| 92 | # uid. Using sys.maxint may provoke the same problems, but hopefully
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| 93 | # it will be a more repeatable failure.
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| 94 | fakeuid = sys.maxint
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| 95 | self.assertNotIn(fakeuid, byuids)
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| 96 | self.assertRaises(KeyError, pwd.getpwuid, fakeuid)
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| 97 |
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| 98 | # -1 shouldn't be a valid uid because it has a special meaning in many
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| 99 | # uid-related functions
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| 100 | self.assertRaises(KeyError, pwd.getpwuid, -1)
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| 101 | # should be out of uid_t range
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| 102 | self.assertRaises(KeyError, pwd.getpwuid, 2**128)
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| 103 | self.assertRaises(KeyError, pwd.getpwuid, -2**128)
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| 104 |
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| 105 | def test_main():
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| 106 | test_support.run_unittest(PwdTest)
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| 107 |
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| 108 | if __name__ == "__main__":
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| 109 | test_main()
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