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# 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.
# Test implicit vs explicit closes of the handle (RHBZ#717786).
import unittest
import guestfs
close_invoked = 0
def close_callback(ev, eh, buf, array):
global close_invoked
close_invoked += 1
class Test800ExplicitClose(unittest.TestCase):
def test_explicit_close(self):
g = guestfs.GuestFS(python_return_dict=True)
g.close() # explicit close
del g # implicit close - should be no error/warning
# Expect an exception if we call a method on a closed handle.
g = guestfs.GuestFS(python_return_dict=True)
g.close()
self.assertRaises(guestfs.ClosedHandle, g.set_memsize, 512)
del g
# Verify that the handle is really being closed by g.close, by
# setting up a close event and testing that it happened.
g = guestfs.GuestFS(python_return_dict=True)
g.set_event_callback(close_callback, guestfs.EVENT_CLOSE)
self.assertEqual(close_invoked, 0)
g.close()
self.assertEqual(close_invoked, 1)
del g
self.assertEqual(close_invoked, 1)
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