unit test demonstrating the undesirable firefox downgrade

test_firefox_downgrade.py (text/x-python), 1.94 KB, created by Zac Medico on 2019-09-11 05:22:07 UTC

# Copyright 2019 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

from portage.tests import TestCase
from portage.tests.resolver.ResolverPlayground import (ResolverPlayground,
	ResolverPlaygroundTestCase)

class SlotConflictUpdateVirtTestCase(TestCase):

	def testSlotConflictUpdateVirt(self):

		ebuilds = {
			"www-client/firefox-69.0" : {
				"EAPI": "7",
				"RDEPEND": "=media-libs/libvpx-1.7*:0=[postproc] media-video/ffmpeg"
			},

			"www-client/firefox-60.9.0" : {
				"EAPI": "7",
				"RDEPEND": ""
			},

			"media-libs/libvpx-1.8.0" : {
				"EAPI": "7",
				"SLOT" : "0/6",
				"IUSE": "postproc",
			},

			"media-libs/libvpx-1.7.0" : {
				"EAPI": "7",
				"SLOT" : "0/5",
				"IUSE": "+postproc",
			},

			"media-libs/libvpx-1.5.0" : {
				"EAPI": "7",
				"SLOT" : "0/4",
				"IUSE": "postproc",
			},

			"media-video/ffmpeg-4.2" : {
				"EAPI": "7",
				"RDEPEND": "media-libs/libvpx:=",
			},
		}

		installed = {
			"www-client/firefox-69.0" : {
				"EAPI": "7",
				"RDEPEND": "=media-libs/libvpx-1.7*:0/5=[postproc] media-video/ffmpeg"
			},

			"media-libs/libvpx-1.7.0" : {
				"EAPI": "7",
				"SLOT" : "0/5",
				"IUSE": "+postproc",
				"USE": "postproc",
			},

			"media-video/ffmpeg-4.2" : {
				"EAPI": "7",
				"RDEPEND": "media-libs/libvpx:0/5=",
			},
		}

		world = ["www-client/firefox"]

		test_cases = (
			# Demonstrate bug 693836, where firefox is downgraded after
			# an attempt to upgrade libvpx triggers a slot conflict.
			ResolverPlaygroundTestCase(
				['@world'],
				options = {"--update": True, "--deep": True},
				success = True,
				mergelist = ['www-client/firefox-60.9.0']),
		)

		playground = ResolverPlayground(ebuilds=ebuilds,
			installed=installed, world=world, debug=True)
		try:
			for test_case in test_cases:
				playground.run_TestCase(test_case)
				self.assertEqual(test_case.test_success, True, test_case.fail_msg)
		finally:
			playground.debug = False
			playground.cleanup()