Merge pull request #1589 from bastelfreak/tests4

acceptance tests: ensure code is idempotent

Author: bastelfreak

spec/acceptance/server_instance_spec.rb

@@ -156,6 +156,6 @@ class { 'postgresql::server':
 
   it 'installs postgres instance test1' do
     export_locales('en_US.UTF-8 ')
-    apply_manifest(pp, catch_failures: true)
+    idempotent_apply(pp)
   end
 end