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#!/usr/bin/env python3
# SPDX-License-Identifier: LGPL-2.1-only
#
# lscgroup functionality test - multiple '-g' flags
#
# Copyright (c) 2021 Oracle and/or its affiliates.
# Author: Tom Hromatka <tom.hromatka@oracle.com>
#
from cgroup import Cgroup, CgroupVersion
import consts
import ftests
import utils
import sys
import os
CONTROLLER = 'cpuset'
PARENT_CGNAME = '032lscgroup'
CHILD_CGNAME = 'childlscgroup'
GRANDCHILD_CGNAME = 'grandchildlscgroup'
SIBLING_CGNAME = '032sibling'
SIBLING_CHILD_CGNAME = 'cousinlscgroup'
# lscgroup is inconsistent in its handling of trailing slashes
#
# When invoking lscgroup with no flags, no trailing slashes are present in
# any of the cgroups.
#
# When invoking lscgroup with the -g flag, a trailing slash is present on
# the first cgroup returned (i.e. the cgroup specified in the -g flag)
#
EXPECTED_OUT1 = """{}:/{}/
{}:/{}/{}
{}:/{}/{}/{}
{}:/{}/
{}:/{}/{}""".format(CONTROLLER, PARENT_CGNAME,
CONTROLLER, PARENT_CGNAME, CHILD_CGNAME,
CONTROLLER, PARENT_CGNAME, CHILD_CGNAME, GRANDCHILD_CGNAME,
CONTROLLER, SIBLING_CGNAME,
CONTROLLER, SIBLING_CGNAME, SIBLING_CHILD_CGNAME)
def prereqs(config):
result = consts.TEST_PASSED
cause = None
v2_cnt = 0
mount_list = Cgroup.get_cgroup_mounts(config)
for mount in mount_list:
if mount.version == CgroupVersion.CGROUP_V2:
v2_cnt += 1
if v2_cnt > 1:
# There is a bug in lscgroup - see issue #50 - where it doesn't
# properly list the enabled controllers for a cgroup v2 cgroup.
# Skip this test because of this
result = consts.TEST_SKIPPED
cause = 'See Github Issue #50 - lscgroup lists controllers...'
return result, cause
def setup(config):
Cgroup.create(config, CONTROLLER, PARENT_CGNAME)
Cgroup.create(config, CONTROLLER,
os.path.join(PARENT_CGNAME, CHILD_CGNAME))
Cgroup.create(config, CONTROLLER,
os.path.join(PARENT_CGNAME, CHILD_CGNAME, GRANDCHILD_CGNAME))
Cgroup.create(config, CONTROLLER, SIBLING_CGNAME)
Cgroup.create(config, CONTROLLER,
os.path.join(SIBLING_CGNAME, SIBLING_CHILD_CGNAME))
def test(config):
result = consts.TEST_PASSED
cause = None
out = Cgroup.lscgroup(config, controller=[CONTROLLER, CONTROLLER],
path=[PARENT_CGNAME, SIBLING_CGNAME])
if out != EXPECTED_OUT1:
result = consts.TEST_FAILED
cause = (
"Expected lscgroup output doesn't match received output\n"
'Expected:\n{}\n'
'Received:\n{}\n'
''.format(utils.indent(EXPECTED_OUT1, 4),
utils.indent(out, 4))
)
return result, cause
ret = Cgroup.lscgroup(config, cghelp=True)
if 'Usage:' not in ret:
result = consts.TEST_FAILED
cause = 'Failed to print help text'
return result, cause
def teardown(config):
Cgroup.delete(config, CONTROLLER, PARENT_CGNAME, recursive=True)
Cgroup.delete(config, CONTROLLER, SIBLING_CGNAME, recursive=True)
def main(config):
[result, cause] = prereqs(config)
if result != consts.TEST_PASSED:
return [result, cause]
setup(config)
[result, cause] = test(config)
teardown(config)
return [result, cause]
if __name__ == '__main__':
config = ftests.parse_args()
# this test was invoked directly. run only it
config.args.num = int(os.path.basename(__file__).split('-')[0])
sys.exit(ftests.main(config))
# vim: set et ts=4 sw=4:
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