# -*- encoding: utf8 -*-
#
# The Qubes OS Project, http://www.qubes-os.org
#
# Copyright (C) 2017 Marek Marczykowski-Górecki
#                               <marmarek@invisiblethingslab.com>
#
# This program 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.
#
# 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with this program; if not, see <http://www.gnu.org/licenses/>.

import qubesmgmt.tests
import qubesmgmt.tests.tools
import qubesmgmt.tools.qvm_pause


class TC_00_qvm_pause(qubesmgmt.tests.QubesTestCase):
    def test_000_with_vm(self):
        self.app.expected_calls[
            ('dom0', 'mgmt.vm.List', None, None)] = \
            b'0\x00some-vm class=AppVM state=Running\n'
        self.app.expected_calls[
            ('some-vm', 'mgmt.vm.Pause', None, None)] = b'0\x00'
        qubesmgmt.tools.qvm_pause.main(['some-vm'], app=self.app)
        self.assertAllCalled()

    def test_001_missing_vm(self):
        with self.assertRaises(SystemExit):
            with qubesmgmt.tests.tools.StderrBuffer() as stderr:
                qubesmgmt.tools.qvm_pause.main([], app=self.app)
        self.assertIn('one of the arguments --all VMNAME is required',
            stderr.getvalue())
        self.assertAllCalled()

    def test_002_invalid_vm(self):
        self.app.expected_calls[
            ('dom0', 'mgmt.vm.List', None, None)] = \
            b'0\x00some-vm class=AppVM state=Running\n'
        with self.assertRaises(SystemExit):
            with qubesmgmt.tests.tools.StderrBuffer() as stderr:
                qubesmgmt.tools.qvm_pause.main(['no-such-vm'], app=self.app)
        self.assertIn('no such domain', stderr.getvalue())
        self.assertAllCalled()

    def test_003_not_running(self):
        # TODO: some option to ignore this error?
        self.app.expected_calls[
            ('some-vm', 'mgmt.vm.Pause', None, None)] = \
            b'2\x00QubesVMNotStartedError\x00\x00Domain is powered off: ' \
            b'some-vm\x00'
        self.app.expected_calls[
            ('dom0', 'mgmt.vm.List', None, None)] = \
            b'0\x00some-vm class=AppVM state=Halted\n'
        self.assertEqual(
            qubesmgmt.tools.qvm_pause.main(['some-vm'], app=self.app),
            1)
        self.assertAllCalled()

    def test_004_multiple_vms(self):
        self.app.expected_calls[
            ('some-vm', 'mgmt.vm.Pause', None, None)] = \
            b'0\x00'
        self.app.expected_calls[
            ('other-vm', 'mgmt.vm.Pause', None, None)] = \
            b'0\x00'
        self.app.expected_calls[
            ('dom0', 'mgmt.vm.List', None, None)] = \
            b'0\x00some-vm class=AppVM state=Running\n' \
            b'other-vm class=AppVM state=Running\n'
        self.assertEqual(
            qubesmgmt.tools.qvm_pause.main(['some-vm', 'other-vm'],
                app=self.app),
            0)
        self.assertAllCalled()