# -*- coding: utf-8 -*-

# Copyright (C) 2012-2018 Red Hat, Inc.

#

# This copyrighted material is made available to anyone wishing to use,

# modify, copy, or redistribute it subject to the terms and conditions of

# the GNU General Public License v.2, or (at your option) any later version.

# This program is distributed in the hope that it will be useful, but WITHOUT

# ANY WARRANTY expressed or implied, including the implied warranties 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.  Any Red Hat trademarks that are incorporated in the

# source code or documentation are not subject to the GNU General Public

# License and may only be used or replicated with the express permission of

# Red Hat, Inc.

#

from __future__ import absolute_import

from __future__ import unicode_literals

import rpm

import dnf

import dnf.goal

import tests.support

from tests.support import mock

class DowngradeTest(tests.support.ResultTestCase):

    REPOS = ["main"]

    INIT_SACK = True

    @mock.patch('dnf.rpm.transaction.TransactionWrapper')

    def test_package_downgrade(self, ts):

        pkgs = self.base.add_remote_rpms([tests.support.TOUR_44_PKG_PATH])

        cnt = self.base.package_downgrade(pkgs[0])

        self.base._ts.setProbFilter.assert_called_with(

            rpm.RPMPROB_FILTER_OLDPACKAGE)

        self.assertGreater(cnt, 0)

        (installed, removed) = self.installed_removed(self.base)

        self.assertCountEqual(map(str, installed), ("tour-4-4.noarch", ))

        self.assertCountEqual(map(str, removed), ("tour-5-0.noarch", ))

    def test_downgrade(self):

        cnt = self.base.downgrade("tour")

        self.assertGreater(cnt, 0)

        new_pkg = self.base.sack.query().available().filter(name="tour")[0]

        self.assertEqual(new_pkg.evr, "4.6-1")

        new_set = tests.support.installed_but(self.base.sack, "tour") + [new_pkg]

        self.assertResult(self.base, new_set)

    def test_downgrade2(self):

        # override base with custom repos

        self.base = tests.support.MockBase("old_versions")

        self.base.downgrade("tour")

        installed, removed = self.installed_removed(self.base)

        self.assertCountEqual(map(str, installed), ['tour-4.9-1.noarch'])

        self.assertCountEqual(map(str, removed), ['tour-5-0.noarch'])

class DowngradeTest2(tests.support.DnfBaseTestCase):

    REPOS = ["main"]

    INIT_SACK = True

    def setUp(self):

        super(DowngradeTest2, self).setUp()

        self.base._goal = mock.create_autospec(dnf.goal.Goal)

    def test_downgrade_pkgnevra(self):

        """ Downgrade should handle full NEVRAs. """

        tests.support.ObjectMatcher(dnf.package.Package, {'name': 'tour'})

        with self.assertRaises(dnf.exceptions.PackagesNotInstalledError):

            self.base.downgrade('tour-0:5-0.noarch')

    def test_downgrade_notinstalled(self):

        pkg = tests.support.ObjectMatcher(dnf.package.Package, {'name': 'lotus'})

        with self.assertRaises(dnf.exceptions.PackagesNotInstalledError) as context:

            self.base.downgrade('lotus')

        self.assertEqual(context.exception.pkg_spec, 'lotus')

        self.assertEqual(tuple(context.exception.packages), (pkg,) * 2)

        self.assertEqual(self.goal.mock_calls, [])

    def test_downgrade_notfound(self):

        with self.assertRaises(dnf.exceptions.PackageNotFoundError) as context:

            self.base.downgrade('non-existent')

        self.assertEqual(context.exception.pkg_spec, 'non-existent')

        self.assertEqual(self.goal.mock_calls, [])

    def test_downgrade_nodowngrade(self):

        downgraded_count = self.base.downgrade('pepper')

        self.assertEqual(self.goal.mock_calls, [])

        self.assertEqual(downgraded_count, 0)