Plugin Check
Automatically test your plugin to ensure it is up to the required standards from the Plugin Review team before submission into Plugins directory.
Testing plugin before submission
Plugin Check is a new plugin from the Plugin Review Team that allows you to auto check your newly created WordPress plugins. You can run this quick test on your plugin within WordPress dashboard and fix any possible errors.

After installation and activation, go to Tools > Plugin Check in your WordPress dashboard. Then select a specific plugin from the drop down box and click Check button to see results. It is an initial release, expect more improvements in the upcoming iterations.