For more information see:
About Configuration Drift, Pester and Vester : https://paulgrevink.wordpress.com/2018/11/29/about-configuration-drift-pester-and-vester/
Tips for writing Vester test files, part 1 : https://paulgrevink.wordpress.com/2019/02/10/tips-for-writing-vester-test-files-part-1/ Tips for writing Vester test files, part 2 : https://paulgrevink.wordpress.com/2019/02/20/tips-for-writing-vester-test-files-part-2/