| # Copyright 2010 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 BacktrackingTestCase(TestCase): |
| |
| def testBacktracking(self): |
| ebuilds = { |
| "dev-libs/A-1": {}, |
| "dev-libs/A-2": {}, |
| "dev-libs/B-1": { "DEPEND": "dev-libs/A" }, |
| } |
| |
| test_cases = ( |
| ResolverPlaygroundTestCase( |
| ["=dev-libs/A-1", "dev-libs/B"], |
| all_permutations = True, |
| mergelist = ["dev-libs/A-1", "dev-libs/B-1"], |
| success = True), |
| ) |
| |
| playground = ResolverPlayground(ebuilds=ebuilds) |
| |
| 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() |
| |
| def testBacktrackingGoodVersionFirst(self): |
| """ |
| When backtracking due to slot conflicts, we masked the version that has been pulled |
| in first. This is not always a good idea. Mask the highest version instead. |
| """ |
| |
| ebuilds = { |
| "dev-libs/A-1": { "DEPEND": "=dev-libs/C-1 dev-libs/B" }, |
| "dev-libs/B-1": { "DEPEND": "=dev-libs/C-1" }, |
| "dev-libs/B-2": { "DEPEND": "=dev-libs/C-2" }, |
| "dev-libs/C-1": { }, |
| "dev-libs/C-2": { }, |
| } |
| |
| test_cases = ( |
| ResolverPlaygroundTestCase( |
| ["dev-libs/A"], |
| mergelist = ["dev-libs/C-1", "dev-libs/B-1", "dev-libs/A-1", ], |
| success = True), |
| ) |
| |
| playground = ResolverPlayground(ebuilds=ebuilds) |
| |
| 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() |
