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#
# Author:: Joshua Miller <joshmiller@fb.com>
# Copyright:: Copyright (c) 2019 Facebook
# License:: Apache License, Version 2.0
#
# 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.
#
require_relative "../../../spec_helper.rb"
describe Ohai::System, "sysctl plugin", :unix_only do
let(:plugin) { get_plugin("linux/sysctl") }
it "populates sysctl if sysctl is found" do
sysctl_out = <<-SYSCTL_OUT
vm.nr_overcommit_hugepages = 0
vm.numa_stat = 1
vm.numa_zonelist_order = Node
vm.oom_dump_tasks = 1
vm.oom_kill_allocating_task = 0
vm.overcommit_kbytes = 0
SYSCTL_OUT
allow(plugin).to receive(:collect_os).and_return(:linux)
allow(plugin).to receive(:which).with("sysctl").and_return("/usr/sbin/sysctl")
allow(plugin).to receive(:shell_out).with("/usr/sbin/sysctl -a").and_return(mock_shell_out(0, sysctl_out, ""))
plugin.run
expect(plugin[:sysctl].to_hash).to eq({
"vm.nr_overcommit_hugepages" => "0",
"vm.numa_stat" => "1",
"vm.numa_zonelist_order" => "Node",
"vm.oom_dump_tasks" => "1",
"vm.oom_kill_allocating_task" => "0",
"vm.overcommit_kbytes" => "0",
})
end
it "does not populate sysctl if sysctl is not found" do
allow(plugin).to receive(:collect_os).and_return(:linux)
allow(plugin).to receive(:which).with("sysctl").and_return(false)
plugin.run
expect(plugin[:sysctl]).to be(nil)
end
end
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