incorrect result when testing conditional notification

[emiller42]

With a resource block in a recipe like so...

file '/etc/systemd/system/statsd.service' do
  action :delete
  notifies :run, 'execute[statsd_systemctl_daemon_reload]', :immediately
  only_if { node['platform_version'] > '7' }
end

and a test like so...

it 'deletes old systemd service' do
  file = chef_run.file('/etc/systemd/system/statsd.service')
  expect(chef_run).to delete_file('/etc/systemd/system/statsd.service')
  expect(file).to notify('execute[statsd_systemctl_daemon_reload]').to(:run).immediately
end if version >= '7.0'

it 'does not delete systemd service on rhel 6' do
  file = chef_run.file('/etc/systemd/system/statsd.service')
  expect(chef_run).to_not delete_file('/etc/systemd/system/statsd.service')
  expect(file).to_not notify('execute[statsd_systemctl_daemon_reload]').to(:run).immediately
end if version < '7.0'

I end up with a chefspec run that fails only the last notification assertion:

  1) statsd::default On redhat 6.7 does not delete systemd service on rhel 6
     Failure/Error: expect(file).to_not notify('execute[statsd_systemctl_daemon_reload]').to(:run).immediately
       expected "file[/etc/systemd/system/statsd.service]" to not notify "execute[statsd_systemctl_daemon_reload]", but it did.
     # ./spec/recipe_default_spec.rb:120:in `block (5 levels) in <top (required)>'

In an actual chef run, this resource does not send a notification when the only_if condition is not met. Am I doing something wrong with my test definition? The fact that the results for file deletion are accurate leads me to believe the conditions are evaluating as expected.