Check proper setup of chef-client.timer and chef-client.service

test/integration/sys_chef/serverspec/localhost/chef_spec.rb

@@ -2,7 +2,7 @@
 # Cookbook Name:: sys
 # Serverspec integration tests for sys::chef
 #
-# Copyright 2020 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH
+# Copyright 2020-2022 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH
 #
 # Authors:
 #  Christopher Huhn   <C.Huhn@gsi.de>
@@ -39,7 +39,20 @@ context 'chef-client config' do
   end
 end
 
-describe service 'chef-client.timer' do
-  it { should be_running }
-  it { should be_enabled }
+context 'not on Stretch', if: os[:release].to_i >= 10 || os[:family] != 'debian' do
+  # this check fails on Stretch:
+  describe service 'chef-client.timer' do
+    it { should be_running }
+    it { should be_enabled }
+  end
+end
+
+describe service 'chef-client.service' do
+  it { should_not be_running } # oneshot servive
+  it { should_not be_enabled } # triggered by timer
+end
+
+describe command 'systemctl status chef-client.service' do
+  # chef should not be running in daemon mode:
+  its(:stdout) { should_not match %r{/usr/bin/chef-client\s(.*\s)?-d\s} }
 end