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# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import functools
from testinfra.modules.base import InstanceModule
class Sysctl(InstanceModule):
"""Test kernel parameters
>>> host.sysctl("kernel.osrelease")
"3.16.0-4-amd64"
>>> host.sysctl("vm.dirty_ratio")
20
"""
@functools.cached_property
def _sysctl_command(self):
return self.find_command("sysctl")
def __call__(self, name):
value = self.check_output("%s -n %s", self._sysctl_command, name)
try:
return int(value)
except ValueError:
return value
def __repr__(self):
return "<sysctl>"
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