(#8369) Test run_install_script
(#8369) Test run_install_script

Initial test for run_install_script.

tests that the expected commands are called with
and without sudo.

Reviewed-by: Jeff McCune

16nsk/puppetlabs-cloud_provisioner,puppetlabs/puppetlabs-cloud_provisioner,amos6224/puppetlabs-cloud-provisioner,puppetlabs/puppetlabs-cloud_provisioner