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# 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 testHittingTheBacktrackLimit(self):
ebuilds = {
"dev-libs/A-1": {},
"dev-libs/A-2": {},
"dev-libs/B-1": {},
"dev-libs/B-2": {},
"dev-libs/C-1": { "DEPEND": "dev-libs/A dev-libs/B" },
"dev-libs/D-1": { "DEPEND": "=dev-libs/A-1 =dev-libs/B-1" },
}
test_cases = (
ResolverPlaygroundTestCase(
["dev-libs/C", "dev-libs/D"],
all_permutations = True,
mergelist = ["dev-libs/A-1", "dev-libs/B-1", "dev-libs/C-1", "dev-libs/D-1"],
ignore_mergelist_order = True,
success = True),
#This one hits the backtrack limit. Be aware that this depends on the argument order.
ResolverPlaygroundTestCase(
["dev-libs/D", "dev-libs/C"],
options = { "--backtrack": 1 },
mergelist = ["dev-libs/A-1", "dev-libs/B-1", "dev-libs/A-2", "dev-libs/B-2", "dev-libs/C-1", "dev-libs/D-1"],
ignore_mergelist_order = True,
slot_collision_solutions = [],
success = False),
)
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 testBacktrackWithoutUpdates(self):
"""
If --update is not given we might have to mask the old installed version later.
"""
ebuilds = {
"dev-libs/A-1": { "DEPEND": "dev-libs/Z" },
"dev-libs/B-1": { "DEPEND": ">=dev-libs/Z-2" },
"dev-libs/Z-1": { },
"dev-libs/Z-2": { },
}
installed = {
"dev-libs/Z-1": { "USE": "" },
}
test_cases = (
ResolverPlaygroundTestCase(
["dev-libs/B", "dev-libs/A"],
all_permutations = True,
mergelist = ["dev-libs/Z-2", "dev-libs/B-1", "dev-libs/A-1",],
ignore_mergelist_order = True,
success = True),
)
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()
def testBacktrackMissedUpdates(self):
"""
An update is missed due to a dependency on an older version.
"""
ebuilds = {
"dev-libs/A-1": { },
"dev-libs/A-2": { },
"dev-libs/B-1": { "RDEPEND": "<=dev-libs/A-1" },
}
installed = {
"dev-libs/A-1": { "USE": "" },
"dev-libs/B-1": { "USE": "", "RDEPEND": "<=dev-libs/A-1" },
}
options = {'--update' : True, '--deep' : True, '--selective' : True}
test_cases = (
ResolverPlaygroundTestCase(
["dev-libs/A", "dev-libs/B"],
options = options,
all_permutations = True,
mergelist = [],
success = True),
)
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()
def testBacktrackNoWrongRebuilds(self):
"""
Ensure we remove backtrack masks if the reason for the mask gets masked itself.
"""
ebuilds = {
"dev-libs/A-1": { },
"dev-libs/A-2": { },
"dev-libs/B-1": { "RDEPEND": "dev-libs/D"},
"dev-libs/C-1": { },
"dev-libs/C-2": { "RDEPEND": ">=dev-libs/A-2" },
"dev-libs/D-1": { "RDEPEND": "<dev-libs/A-2" },
}
installed = {
"dev-libs/A-1": { },
"dev-libs/B-1": { "RDEPEND": "dev-libs/D" },
"dev-libs/C-1": { },
"dev-libs/D-1": { "RDEPEND": "<dev-libs/A-2" },
}
world = ["dev-libs/B", "dev-libs/C"]
options = {'--update' : True, '--deep' : True, '--selective' : True}
test_cases = (
ResolverPlaygroundTestCase(
["@world"],
options = options,
mergelist = [],
success = 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()
|
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