We have started to test a few of our workflows automatically against UseGalaxy.eu. This will run all workflows monthly to ensure that the keep working and that our infrastructure works and scales well.
Feel free to contribute workflows to our testing repository or propose us workflows via opening an issue. Alternatively you can write us at firstname.lastname@example.org. If you would like us to test these workflows on your server, just get in contact with us and we can do that as well.