#!/usr/bin/env python

# Copyright (C) 2011  Jeff Forcier <jeff@bitprophet.org>
#
# This file is part of ssh.
#
# 'ssh' is free software; you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation; either version 2.1 of the License, or (at your option)
# any later version.
#
# 'ssh' is distrubuted in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with 'ssh'; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Suite 500, Boston, MA  02110-1335  USA.

"""
do the unit tests!
"""

import os
import re
import sys
import unittest
from optparse import OptionParser
import ssh

sys.path.append('tests')

from test_message import MessageTest
from test_file import BufferedFileTest
from test_buffered_pipe import BufferedPipeTest
from test_util import UtilTest
from test_hostkeys import HostKeysTest
from test_pkey import KeyTest
from test_kex import KexTest
from test_packetizer import PacketizerTest
from test_auth import AuthTest
from test_transport import TransportTest
from test_sftp import SFTPTest
from test_sftp_big import BigSFTPTest
from test_client import SSHClientTest

default_host = 'localhost'
default_user = os.environ.get('USER', 'nobody')
default_keyfile = os.path.join(os.environ.get('HOME', '/'), '.ssh/id_rsa')
default_passwd = None


def iter_suite_tests(suite):
    """Return all tests in a suite, recursing through nested suites"""
    for item in suite._tests:
        if isinstance(item, unittest.TestCase):
            yield item
        elif isinstance(item, unittest.TestSuite):
            for r in iter_suite_tests(item):
                yield r
        else:
            raise Exception('unknown object %r inside test suite %r'
                            % (item, suite))


def filter_suite_by_re(suite, pattern):
    result = unittest.TestSuite()
    filter_re = re.compile(pattern)
    for test in iter_suite_tests(suite):
        if filter_re.search(test.id()):
            result.addTest(test)
    return result


def main():
    parser = OptionParser('usage: %prog [options]')
    parser.add_option('--verbose', action='store_true', dest='verbose', default=False,
                      help='verbose display (one line per test)')
    parser.add_option('--no-pkey', action='store_false', dest='use_pkey', default=True,
                      help='skip RSA/DSS private key tests (which can take a while)')
    parser.add_option('--no-transport', action='store_false', dest='use_transport', default=True,
                      help='skip transport tests (which can take a while)')
    parser.add_option('--no-sftp', action='store_false', dest='use_sftp', default=True,
                      help='skip SFTP client/server tests, which can be slow')
    parser.add_option('--no-big-file', action='store_false', dest='use_big_file', default=True,
                      help='skip big file SFTP tests, which are slow as molasses')
    parser.add_option('-R', action='store_false', dest='use_loopback_sftp', default=True,
                      help='perform SFTP tests against a remote server (by default, SFTP tests ' +
                      'are done through a loopback socket)')
    parser.add_option('-H', '--sftp-host', dest='hostname', type='string', default=default_host,
                      metavar='<host>',
                      help='[with -R] host for remote sftp tests (default: %s)' % default_host)
    parser.add_option('-U', '--sftp-user', dest='username', type='string', default=default_user,
                      metavar='<username>',
                      help='[with -R] username for remote sftp tests (default: %s)' % default_user)
    parser.add_option('-K', '--sftp-key', dest='keyfile', type='string', default=default_keyfile,
                      metavar='<keyfile>',
                      help='[with -R] location of private key for remote sftp tests (default: %s)' %
                      default_keyfile)
    parser.add_option('-P', '--sftp-passwd', dest='password', type='string', default=default_passwd,
                      metavar='<password>',
                      help='[with -R] (optional) password to unlock the private key for remote sftp tests')
    
    options, args = parser.parse_args()
    
    # setup logging
    ssh.util.log_to_file('test.log')
    
    if options.use_sftp:
        if options.use_loopback_sftp:
            SFTPTest.init_loopback()
        else:
            SFTPTest.init(options.hostname, options.username, options.keyfile, options.password)
        if not options.use_big_file:
            SFTPTest.set_big_file_test(False)
    
    suite = unittest.TestSuite()
    suite.addTest(unittest.makeSuite(MessageTest))
    suite.addTest(unittest.makeSuite(BufferedFileTest))
    suite.addTest(unittest.makeSuite(BufferedPipeTest))
    suite.addTest(unittest.makeSuite(UtilTest))
    suite.addTest(unittest.makeSuite(HostKeysTest))
    if options.use_pkey:
        suite.addTest(unittest.makeSuite(KeyTest))
    suite.addTest(unittest.makeSuite(KexTest))
    suite.addTest(unittest.makeSuite(PacketizerTest))
    if options.use_transport:
        suite.addTest(unittest.makeSuite(AuthTest))
        suite.addTest(unittest.makeSuite(TransportTest))
    suite.addTest(unittest.makeSuite(SSHClientTest))
    if options.use_sftp:
        suite.addTest(unittest.makeSuite(SFTPTest))
    if options.use_big_file:
        suite.addTest(unittest.makeSuite(BigSFTPTest))
    verbosity = 1
    if options.verbose:
        verbosity = 2

    runner = unittest.TextTestRunner(verbosity=verbosity)
    if len(args) > 0:
        filter = '|'.join(args)
        suite = filter_suite_by_re(suite, filter)
    runner.run(suite)


if __name__ == '__main__':
    main()