As a notorious bastard I used to run C# code tests by giving someone a flattened windows 7 with the .net SDK installed and nothing else. Also no network connection. How the potential engineer dealt with it was interesting.
We had a couple of people shrug it off and do it in notepad and csc quite happily. They were of course hired.
Return to tradition[1].
[1] https://www.ibm.com/history/punched-card