This is a library of Cisco VIRL/CML files that can used for testing and verifying, feel free to edit and share. More information about the CML software can be found at:
https://www.cisco.com/site/us/en/learn/training-certifications/training/modeling-labs/index.html.
Starting in CML 2.8 there is a free-tier offering, you don't need to pay for license. There are labs in this library that will work with if you have free-tier license.