'L{_pwdGetByName} returns a tuple of items from the UNIX /etc/passwd
database if the L{pwd} module is present.'

def test_pwdGetByName(self):

    userdb = UserDatabase()
    userdb.addUser('alice', 'secrit', 1, 2, 'first    last', '/foo', '/bin/sh')
    self.patch(checkers, 'pwd', userdb)
    self.assertEqual(checkers._pwdGetByName('alice'), userdb.getpwnam('alice'))
