require 'spec_helper' output = <<-EOF #Mon Aug 22 16:42:19 UTC 2016 host_uuid=41b4d082-daf8-40bb-8812-504a0e9e5dac EOF describe 'host_id' do it 'should work without errors' do allow(File).to receive(:read).and_return('test') allow(File).to receive(:read).with('/etc/midonet_host_id.properties').and_return(output) is_expected.to run.with_params().and_return('41b4d082-daf8-40bb-8812-504a0e9e5dac') end end