from __future__ import absolute_import

import mock
import os
import six
import sys
try:
    import unittest2 as unittest
except ImportError:
    import unittest

from koji_cli.commands import handle_add_host_to_channel

class TestAddHostToChannel(unittest.TestCase):

    # Show long diffs in error output...
    maxDiff = None

    @mock.patch('sys.stdout', new_callable=six.StringIO)
    @mock.patch('koji_cli.commands.activate_session')
    def test_handle_add_host_to_channel(self, activate_session_mock, stdout):
        host = 'host'
        host_info = mock.ANY
        channel = 'channel'
        channel_info = mock.ANY
        args = [host, channel]
        options = mock.MagicMock()

        # Mock out the xmlrpc server
        session = mock.MagicMock()

        session.getChannel.return_value = channel_info
        session.getHost.return_value = host_info
        # Run it and check immediate output
        # args: host, channel
        # expected: success
        rv = handle_add_host_to_channel(options, session, args)
        actual = stdout.getvalue()
        expected = ''
        self.assertMultiLineEqual(actual, expected)
        # Finally, assert that things were called as we expected.
        activate_session_mock.assert_called_once_with(session, options)
        session.getChannel.assert_called_once_with(channel)
        session.getHost.assert_called_once_with(host)
        session.addHostToChannel.assert_called_once_with(host, channel)
        self.assertNotEqual(rv, 1)

    @mock.patch('sys.stdout', new_callable=six.StringIO)
    @mock.patch('koji_cli.commands.activate_session')
    def test_handle_add_host_to_channel_list(
            self, activate_session_mock, stdout):
        list_arg = '--list'
        args = [list_arg]
        channel_infos = [{'name': 'channel1'}, {'name': 'channel2'}]
        options = mock.MagicMock()

        # Mock out the xmlrpc server
        session = mock.MagicMock()

        session.listChannels.return_value = channel_infos
        # Run it and check immediate output
        # args: --list
        # expected: list all channel names
        rv = handle_add_host_to_channel(options, session, args)
        actual = stdout.getvalue()
        expected = 'channel1\nchannel2\n'
        self.assertMultiLineEqual(actual, expected)
        # Finally, assert that things were called as we expected.
        activate_session_mock.assert_called_once_with(session, options)
        session.listChannels.assert_called_once()
        session.getChannel.assert_not_called()
        session.getHost.assert_not_called()
        session.addHostToChannel.assert_not_called()
        self.assertNotEqual(rv, 1)

    @mock.patch('sys.stdout', new_callable=six.StringIO)
    @mock.patch('koji_cli.commands.activate_session')
    def test_handle_add_host_to_channel_new(
            self, activate_session_mock, stdout):
        host = 'host'
        host_info = mock.ANY
        channel = 'channel'
        new_arg = '--new'
        args = [host, channel, new_arg]
        kwargs = {'create': True}
        options = mock.MagicMock()

        # Mock out the xmlrpc server
        session = mock.MagicMock()

        session.getHost.return_value = host_info
        # Run it and check immediate output
        # args: host, channel, --new
        # expected: success
        rv = handle_add_host_to_channel(options, session, args)
        actual = stdout.getvalue()
        expected = ''
        self.assertMultiLineEqual(actual, expected)
        # Finally, assert that things were called as we expected.
        activate_session_mock.assert_called_once_with(session, options)
        session.getChannel.assert_not_called()
        session.getHost.assert_called_once_with(host)
        session.addHostToChannel.assert_called_once_with(
            host, channel, **kwargs)
        self.assertNotEqual(rv, 1)

    @mock.patch('sys.stdout', new_callable=six.StringIO)
    @mock.patch('koji_cli.commands.activate_session')
    def test_handle_add_host_to_channel_no_channel(
            self, activate_session_mock, stdout):
        host = 'host'
        channel = 'channel'
        channel_info = None
        args = [host, channel]
        options = mock.MagicMock()

        # Mock out the xmlrpc server
        session = mock.MagicMock()

        session.getChannel.return_value = channel_info
        # Run it and check immediate output
        # args: host, channel
        # expected: failed, channel not found
        rv = handle_add_host_to_channel(options, session, args)
        actual = stdout.getvalue()
        expected = 'No such channel: channel\n'
        self.assertMultiLineEqual(actual, expected)
        # Finally, assert that things were called as we expected.
        activate_session_mock.assert_called_once_with(session, options)
        session.getChannel.assert_called_once_with(channel)
        session.getHost.assert_not_called()
        session.addHostToChannel.assert_not_called()
        self.assertEqual(rv, 1)

    @mock.patch('sys.stdout', new_callable=six.StringIO)
    @mock.patch('koji_cli.commands.activate_session')
    def test_handle_add_host_to_channel_no_host(
            self, activate_session_mock, stdout):
        host = 'host'
        host_info = None
        channel = 'channel'
        channel_info = mock.ANY
        args = [host, channel]
        options = mock.MagicMock()

        # Mock out the xmlrpc server
        session = mock.MagicMock()

        session.getChannel.return_value = channel_info
        session.getHost.return_value = host_info
        # Run it and check immediate output
        # args: host, channel
        # expected: success
        rv = handle_add_host_to_channel(options, session, args)
        actual = stdout.getvalue()
        expected = 'No such host: host\n'
        self.assertMultiLineEqual(actual, expected)
        # Finally, assert that things were called as we expected.
        activate_session_mock.assert_called_once_with(session, options)
        session.getChannel.assert_called_once_with(channel)
        session.getHost.assert_called_once_with(host)
        session.addHostToChannel.assert_not_called()
        self.assertEqual(rv, 1)

    @mock.patch('sys.stdout', new_callable=six.StringIO)
    @mock.patch('sys.stderr', new_callable=six.StringIO)
    @mock.patch('koji_cli.commands.activate_session')
    def test_handle_add_host_to_channel_help(
            self, activate_session_mock, stderr, stdout):
        args = []
        options = mock.MagicMock()
        progname = os.path.basename(sys.argv[0]) or 'koji'

        # Mock out the xmlrpc server
        session = mock.MagicMock()

        # Run it and check immediate output
        # args: _empty_
        # expected: failed, help msg shows
        with self.assertRaises(SystemExit) as cm:
            handle_add_host_to_channel(options, session, args)
        actual_stdout = stdout.getvalue()
        actual_stderr = stderr.getvalue()
        expected_stdout = ''
        expected_stderr = """Usage: %s add-host-to-channel [options] hostname channel
(Specify the --help global option for a list of other help options)

%s: error: Please specify a hostname and a channel
""" % (progname, progname)
        self.assertMultiLineEqual(actual_stdout, expected_stdout)
        self.assertMultiLineEqual(actual_stderr, expected_stderr)

        # Finally, assert that things were called as we expected.
        activate_session_mock.assert_not_called()
        session.getHost.assert_not_called()
        session.getChannel.assert_not_called()
        session.listChannels.assert_not_called()
        session.addHostToChannel.assert_not_called()
        if isinstance(cm.exception, int):
            self.assertEqual(cm.exception, 2)
        else:
            self.assertEqual(cm.exception.code, 2)


if __name__ == '__main__':
    unittest.main()
