bitwes
No mentions of `Engine.set_time_scale`
I've found the function extremely useful in speeding up my testing, but it doesn't seem to be mentioned anywhere in the repo.
Everyone should be using this.
I looked into using --time-scale option on the command line awhile ago, see #120. I got mixed results using this with tests on various projects. Altering this value caused some tests to fail. I don't think I was aware that it could be set inside a test through Engine. I double checked the wiki and there isn't any mention of "scale" anywhere, so this isn't documented. I tested values 1 - 8. 8 caused a lot of tests to fail, 3 only caused 1.
This should be added to the documentation so that people are aware that it exists and that it can cause issues. If you set this in a before_all you should unset it in after_all so that it doesn't bleed over into other scripts that might be aversely affected by it.
It might be useful to add something to GUT to reset this value after each test script so that you don't have to remember to reset it. You would also have to be able to disable this option.
