Just to point out the obvious: If qringNF isn't enabled explicitly then it 
must be set by some singular package that is being imported in a test.



On Saturday, January 13, 2018 at 1:29:00 PM UTC+1, Simon King wrote:
>
> On 2018-01-13, Simon King <[email protected] <javascript:>> wrote: 
> > I wonder: Is the doctest framework adding certain options to 
> > Singular that are not used in an interactive session? If yes, 
> > how can I prevent that (at least during one test)? 
>
> Indeed, I see this during the failing test: 
>   singular.option() 
>   //options: redSB redTail redThrough redefine loadLib usage prompt 
> qringNF 
>
> whereas in a normal session the option qringNF is missing. What 
> really puzzles me: When I copy only the failing test into a file 
> then it passes. So, it seems that there are side-effect of the other 
> tests. But none of them is explicitly setting qringNF, and the 
> underlying code isn't using that option either. 
>
> The Singular manual does not indicate whether qringNF is used by default 
> or not. 
>
> So, do you have any idea why qringNF is sometimes unexpectedly used in 
> doctests and sometimes not? 
>
> Best regards, 
> Simon 
>
>

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