# libguestfs Python bindings
# Copyright (C) 2011 Red Hat Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

import unittest
import guestfs

log_invoked = 0


def log_callback(ev, eh, buf, array):
    global log_invoked
    log_invoked += 1

    if ev == guestfs.EVENT_APPLIANCE:
        buf = buf.rstrip()

    # Log what happened.
    print("python event logged: event=%s eh=%d buf='%s' array=%s" %
          (guestfs.event_to_string(ev), eh, buf, array))


class Test420LogMessages(unittest.TestCase):
    def test_log_messages(self):
        g = guestfs.GuestFS(python_return_dict=True)

        # Register an event callback for all log messages.
        events = guestfs.EVENT_APPLIANCE | guestfs.EVENT_LIBRARY \
            | guestfs.EVENT_WARNING | guestfs.EVENT_TRACE
        g.set_event_callback(log_callback, events)

        # Now make sure we see some messages.
        g.set_trace(1)
        g.set_verbose(1)

        # Do some stuff.
        g.add_drive_ro("/dev/null")
        g.set_autosync(1)

        g.close()

        self.assertNotEqual(log_invoked, 0)