PR Summary

A minimalized and ready to be merged version of PR#1293 Thanks to@JamesWTruher for the hard work of finding the issue/solution. Tests get now also correctly registered (probably something that Appveyor fixed)

PR Checklist

• PR has a meaningful title
  • Use the present tense and imperative mood when describing your changes
• Summarized changes
• Change is not breaking
• Make sure all.cs,.ps1 and.psm1 files have the correct copyright header
• [NA] Make sure you've added a new test if existing tests do not effectively test the code changed and/or updated documentation
• This PR is ready to merge and is notWork in Progress.
  • If the PR is work in progress, please add the prefixWIP: to the beginning of the title and remove the prefix when the PR is ready.