case os[:name] when 'centos' version = '2017.7.8-1.el6' when 'debian', 'ubuntu' version = '2017.7.8+ds-1' end control 'salt packages' do title 'should be installed' describe package('salt-master') do it { should be_installed } its('version') { should eq version } end describe package('salt-minion') do it { should be_installed } its('version') { should eq version } end end