Ah, simple solution to unittests inside templates

[ZombineDev via Digitalmars-d]

On Saturday, 17 September 2016 at 17:22:52 UTC, Andrei 
Alexandrescu wrote:
> Recall the discussion a few days ago about unittests inside 
> templates being instantiated with the template. Often that's 
> desirable, but sometimes not - for example when you want to 
> generate nice ddoc unittests and avoid bloating. For those 
> cases, here's a simple solution that I don't think has been 
> mentioned:
>
> /** Awesome struct */
> struct Awesome(T)
> {
>     /** Awesome function. */
>     void awesome() {}
>
>     ///
>     static if (is(T == int)) unittest
>     {
>         Awesome awesome;
>         awesome.awesome;
>     }
> }
>
> The unittest documentation is nicely generated. The unittest 
> code itself is only generated for one instantiation.
>
>
> Andrei

This solution is used extensively by ndslice [1] and I agree that 
it's quite flexible.

[1] 
http://forum.dlang.org/post/mailman.166.1472923003.2965.digitalmars-d@puremagic.com#post-psrgjdlvsiukkuhrekoo:40forum.dlang.org