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executable file
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#!/usr/bin/python3
import os
import sys
import tempfile
import unittest
sys.path.insert(
0,
os.path.join(os.path.dirname(__file__), "usr/lib/linuxmint/mintsysadm"),
)
from common.kernel_cleanup import (
CleanupCandidate,
CleanupSettings,
get_cleanup_candidates,
load_cleanup_settings,
prepare_candidate,
prune_protected_kernels,
save_cleanup_settings,
)
from common.kernels import Series
class CleanupPlannerTests(unittest.TestCase):
def setUp(self):
self.packages = [
"linux-headers-6.8.0-40",
"linux-headers-6.8.0-40-generic",
"linux-image-6.8.0-40-generic",
"linux-modules-6.8.0-40-generic",
"linux-headers-6.8.0-41",
"linux-headers-6.8.0-41-generic",
"linux-image-6.8.0-41-generic",
"linux-modules-6.8.0-41-generic",
"linux-headers-6.8.0-42",
"linux-headers-6.8.0-42-generic",
"linux-image-6.8.0-42-generic",
"linux-modules-6.8.0-42-generic",
]
def test_tracked_series_keeps_newest_installed_versions(self):
series = Series(
name="6.8",
version="6.8",
flavor="generic",
tracked=True,
installed_versions={
"6.8.0-40",
"6.8.0-41",
"6.8.0-42",
},
)
candidates = get_cleanup_candidates(
[series],
2,
"6.8.0-42-generic",
self.packages,
)
self.assertEqual(len(candidates), 1)
self.assertEqual(candidates[0].kernel_version, "6.8.0-40")
self.assertEqual(
candidates[0].packages,
{
"linux-headers-6.8.0-40",
"linux-headers-6.8.0-40-generic",
"linux-image-6.8.0-40-generic",
"linux-modules-6.8.0-40-generic",
},
)
def test_untracked_series_does_not_retain_old_versions(self):
series = Series(
name="6.8",
version="6.8",
flavor="generic",
installed_versions={"6.8.0-40", "6.8.0-41"},
)
candidates = get_cleanup_candidates(
[series],
2,
"6.8.0-42-generic",
self.packages,
)
versions = set()
for candidate in candidates:
versions.add(candidate.kernel_version)
self.assertEqual(versions, {"6.8.0-40", "6.8.0-41"})
def test_running_kernel_is_never_a_candidate(self):
series = Series(
name="6.8",
version="6.8",
flavor="generic",
installed_versions={"6.8.0-40"},
)
candidates = get_cleanup_candidates(
[series],
2,
"6.8.0-40-generic",
self.packages,
)
self.assertEqual(candidates, [])
def test_duplicate_tracks_share_tracked_state(self):
hwe = Series(
name="6.8",
version="6.8",
flavor="generic",
track="hwe",
tracked=True,
installed_versions={"6.8.0-40", "6.8.0-41"},
)
edge = Series(
name="6.8",
version="6.8",
flavor="generic",
track="hwe",
edge=True,
installed_versions={"6.8.0-40", "6.8.0-41"},
)
candidates = get_cleanup_candidates(
[hwe, edge],
1,
"different-kernel",
self.packages,
)
self.assertEqual(len(candidates), 1)
self.assertEqual(candidates[0].kernel_version, "6.8.0-40")
def test_settings_round_trip(self):
with tempfile.TemporaryDirectory() as directory:
path = os.path.join(directory, "cleanup.conf")
save_cleanup_settings(
CleanupSettings(
enabled=True,
retain=3,
protected_kernels={"6.8.0-40-generic"},
),
path,
)
self.assertEqual(
load_cleanup_settings(path),
CleanupSettings(
enabled=True,
retain=3,
protected_kernels={"6.8.0-40-generic"},
),
)
def test_protected_kernel_is_not_a_cleanup_candidate(self):
series = Series(
name="6.8",
version="6.8",
flavor="generic",
installed_versions={"6.8.0-40", "6.8.0-41"},
)
candidates = get_cleanup_candidates(
[series],
1,
"different-kernel",
self.packages,
protected_kernels={"6.8.0-40-generic"},
)
self.assertEqual(
{candidate.kernel_version for candidate in candidates},
{"6.8.0-41"},
)
def test_stale_protected_kernels_are_pruned(self):
settings = CleanupSettings(
protected_kernels={
"6.8.0-40-generic",
"6.8.0-39-generic",
},
)
changed = prune_protected_kernels(
settings,
[
"linux-image-6.8.0-40-generic",
"linux-modules-6.8.0-40-generic",
],
)
self.assertTrue(changed)
self.assertEqual(
settings.protected_kernels,
{"6.8.0-40-generic"},
)
def test_candidate_is_rejected_if_apt_would_remove_tracked_meta(self):
class FakePackage:
def __init__(self, name, cache):
self.name = name
self.cache = cache
self.is_installed = True
self.marked_delete = False
def mark_delete(self, auto_fix=True, purge=True):
self.marked_delete = True
self.cache["linux-generic"].marked_delete = True
class FakeCache(dict):
def get_changes(self):
changes = []
for package in self.values():
if package.marked_delete:
changes.append(package)
return changes
cache = FakeCache()
cache["linux-generic"] = FakePackage("linux-generic", cache)
package_name = "linux-image-6.8.0-40-generic"
cache[package_name] = FakePackage(package_name, cache)
candidate = CleanupCandidate(
series_version="6.8",
flavor="generic",
kernel_version="6.8.0-40",
packages={package_name},
)
removals, reason = prepare_candidate(
cache,
candidate,
{"linux-generic"},
)
self.assertIsNone(removals)
self.assertIn("linux-generic", reason)
def test_candidate_is_rejected_if_apt_would_remove_non_kernel_package(self):
class FakePackage:
def __init__(self, name, cache):
self.name = name
self.cache = cache
self.is_installed = True
self.marked_delete = False
def mark_delete(self, auto_fix=True, purge=True):
self.marked_delete = True
self.cache["unrelated-package"].marked_delete = True
class FakeCache(dict):
def get_changes(self):
return [
package
for package in self.values()
if package.marked_delete
]
cache = FakeCache()
package_name = "linux-image-6.8.0-40-generic"
cache[package_name] = FakePackage(package_name, cache)
cache["unrelated-package"] = FakePackage(
"unrelated-package",
cache,
)
candidate = CleanupCandidate(
series_version="6.8",
flavor="generic",
kernel_version="6.8.0-40",
packages={package_name},
)
removals, reason = prepare_candidate(cache, candidate, set())
self.assertIsNone(removals)
self.assertIn("unrelated-package", reason)
def test_candidate_accepts_versioned_main_module_packages(self):
class FakePackage:
def __init__(self, name):
self.name = name
self.is_installed = True
self.marked_delete = False
def mark_delete(self, auto_fix=True, purge=True):
self.marked_delete = True
class FakeCache(dict):
def get_changes(self):
return [
package
for package in self.values()
if package.marked_delete
]
image = "linux-image-7.0.0-1009-oem"
modules = "linux-main-modules-zfs-7.0.0-1009-oem"
cache = FakeCache({
image: FakePackage(image),
modules: FakePackage(modules),
})
candidate = CleanupCandidate(
series_version="7.0",
flavor="oem",
kernel_version="7.0.0-1009",
packages={image, modules},
)
removals, reason = prepare_candidate(cache, candidate, set())
self.assertEqual(removals, {image, modules})
self.assertEqual(reason, "")
if __name__ == "__main__":
unittest.main()