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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 = map(None, 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(map(None, chars))
self.assertRaises(KeyError, pwd.getpwnam, fakename)
# Choose a non-existent uid.
fakeuid = 4127
while fakeuid in byuids:
fakeuid = (fakeuid * 3) % 0x10000
self.assertRaises(KeyError, pwd.getpwuid, fakeuid)
def test_main():
test_support.run_unittest(PwdTest)
if __name__ == "__main__":
test_main()
