How to Continuously Integrate a Powershell script

I have written a script which builds out the various IIS sites that a team of developers will use, ideally when a new Dev comes online, to build their IIS they would checkout our get repo then run the script. In the longer term this script would also do various other tasks in an Environment setup. What I now need to do is ensure the script is continuously integrated, as such how do I set up a testing environment to ensure the script still work after each git commit. I.e the steps would be something as follows - New commit is made - spin up fresh VM - Execute script on VM - Assert the script executed properly