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path: root/pym/portage/tests/resolver/test_merge_order.py
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# Copyright 2011 Gentoo Foundation
# 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 MergeOrderTestCase(TestCase):

	def testMergeOrder(self):
		ebuilds = {
			"app-misc/blocker-buildtime-a-1" : {},
			"app-misc/blocker-runtime-a-1" : {},
			"app-misc/blocker-runtime-hard-a-1" : {},
			"app-misc/circ-post-runtime-a-1": {
				"PDEPEND": "app-misc/circ-post-runtime-b",
			},
			"app-misc/circ-post-runtime-b-1": {
				"RDEPEND": "app-misc/circ-post-runtime-a",
			},
			"app-misc/circ-runtime-a-1": {
				"RDEPEND": "app-misc/circ-runtime-b",
			},
			"app-misc/circ-runtime-b-1": {
				"RDEPEND": "app-misc/circ-runtime-a",
			},
			"app-misc/installed-blocker-a-1" : {
				"EAPI"   : "2",
				"DEPEND" : "!app-misc/blocker-buildtime-a",
				"RDEPEND" : "!app-misc/blocker-runtime-a !!app-misc/blocker-runtime-hard-a",
			},
			"app-misc/some-app-a-1": {
				"RDEPEND": "app-misc/circ-runtime-a app-misc/circ-runtime-b",
			},
			"app-misc/some-app-b-1": {
				"RDEPEND": "app-misc/circ-post-runtime-a app-misc/circ-post-runtime-b",
			},
		}

		installed = {
			"app-misc/installed-blocker-a-1" : {
				"EAPI"   : "2",
				"DEPEND" : "!app-misc/blocker-buildtime-a",
				"RDEPEND" : "!app-misc/blocker-runtime-a !!app-misc/blocker-runtime-hard-a",
			},
		}

		test_cases = (
			ResolverPlaygroundTestCase(
				["app-misc/some-app-a"],
				success = True,
				ambigous_merge_order = True,
				mergelist = [("app-misc/circ-runtime-a-1", "app-misc/circ-runtime-b-1"), "app-misc/some-app-a-1"]),
			ResolverPlaygroundTestCase(
				["app-misc/some-app-a"],
				success = True,
				ambigous_merge_order = True,
				mergelist = [("app-misc/circ-runtime-b-1", "app-misc/circ-runtime-a-1"), "app-misc/some-app-a-1"]),
			# Test optimal merge order for a circular dep that is
			# RDEPEND in one direction and PDEPEND in the other.
			ResolverPlaygroundTestCase(
				["app-misc/some-app-b"],
				success = True,
				mergelist = ["app-misc/circ-post-runtime-a-1", "app-misc/circ-post-runtime-b-1", "app-misc/some-app-b-1"]),
			# installed package has buildtime-only blocker
			# that should be ignored
			ResolverPlaygroundTestCase(
				["app-misc/blocker-buildtime-a"],
				success = True,
				mergelist = ["app-misc/blocker-buildtime-a-1"]),
			# installed package has runtime blocker that
			# should cause it to be uninstalled
			# TODO: distinguish between install/uninstall tasks in mergelist
			ResolverPlaygroundTestCase(
				["app-misc/blocker-runtime-a"],
				success = True,
				mergelist = ["app-misc/blocker-runtime-a-1", "app-misc/installed-blocker-a-1", "!app-misc/blocker-runtime-a"]),
			# An installed package has a hard runtime blocker that
			# will not resolve automatically (unless the option
			# requested in bug 250286 is implemented).
			ResolverPlaygroundTestCase(
				["app-misc/blocker-runtime-hard-a"],
				success = False,
				mergelist = ['app-misc/blocker-runtime-hard-a-1', '!!app-misc/blocker-runtime-hard-a']),
		)

		playground = ResolverPlayground(ebuilds=ebuilds, installed=installed)
		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.cleanup()