| # Copyright 2017 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 AutounmaskUseBacktrackTestCase(TestCase): |
| |
| def testAutounmaskUseBacktrack(self): |
| ebuilds = { |
| 'dev-libs/A-1': { |
| 'EAPI': '6', |
| 'RDEPEND': 'dev-libs/C', |
| }, |
| 'dev-libs/A-2': { |
| 'EAPI': '6', |
| 'RDEPEND': 'dev-libs/C[y]', |
| }, |
| 'dev-libs/A-3': { |
| 'EAPI': '6', |
| 'RDEPEND': 'dev-libs/C', |
| }, |
| 'dev-libs/B-1': { |
| 'EAPI': '6', |
| 'RDEPEND': '<dev-libs/A-3', |
| }, |
| 'dev-libs/C-1': { |
| 'EAPI': '6', |
| 'IUSE': 'x y z', |
| }, |
| 'dev-libs/D-1': { |
| 'EAPI': '6', |
| 'RDEPEND': '>=dev-libs/A-2 dev-libs/C[x]', |
| }, |
| } |
| |
| installed = { |
| 'dev-libs/A-1': { |
| 'EAPI': '6', |
| 'RDEPEND': 'dev-libs/C', |
| }, |
| 'dev-libs/B-1': { |
| 'EAPI': '6', |
| 'RDEPEND': '<dev-libs/A-3', |
| }, |
| 'dev-libs/C-1': { |
| 'EAPI': '6', |
| 'IUSE': 'x y z', |
| }, |
| } |
| |
| world = ['dev-libs/B'] |
| |
| test_cases = ( |
| # Test bug 632598, where autounmask USE changes triggered |
| # unnecessary backtracking. The following case should |
| # require a --backtrack setting no larger than 2. |
| ResolverPlaygroundTestCase( |
| ['dev-libs/D'], |
| options={ |
| '--autounmask-backtrack': 'y', |
| '--backtrack': 2, |
| }, |
| success=False, |
| ambiguous_merge_order=True, |
| mergelist=[ |
| ('dev-libs/C-1', 'dev-libs/A-2'), |
| 'dev-libs/D-1', |
| ], |
| use_changes={'dev-libs/C-1': {'y': True, 'x': True}}, |
| ), |
| ) |
| |
| playground = ResolverPlayground( |
| ebuilds=ebuilds, installed=installed, world=world) |
| |
| 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() |