[caspper69]

This sounds like a design deficiency.

If you have something that should only run in testing, perhaps your test harness should set the global variable appropriately, no?

[stickfigure]

Sure. And a million programmers have all screamed out in horror when they realize that their single test passes, but fails when run as part of the whole suite. Test contamination is a hell paved with global variables.

[Tainnor]

I can't agree more, I was dying this death a thousand times over at my last job.