unit tests with name and verbose report

[jmh530]

On Friday, 5 August 2022 at 12:16:25 UTC, Danesh Daroui wrote:
> [...]
>
> The unittest with version(unittest) didn't work for me and I 
> got link error from the compiler since it didn't find the 
> main() function.
>

If you don't have a main function, then you have to compile with 
`--main`. I don't use `version(unittest)` unless I really really 
have to.

> Frankly, I didn't like the way to use a macro (version(X) is a 
> macro, right?) to use such a simple feature. I think such 
> report to indicate which test is running and either succeeded 
> or failed is an essential feature and I am surprised how it is 
> not included in the compiler yet. To me, anonymous unittests 
> are rather "show off" of a language! :)
>

It's conditional compilation, not a macro. The version(X) 
approach also requires you to specify it somewhere that this 
version is being called. I use the dub.sdl file, but you can do 
it from the command line too.

> The "mir" is a good one but I was looking for machine reasoning 
> algorithms which you can implement an expert system based on 
> rules and facts in a knowledge base. It seems that it is not 
> implemented. Thanks. :)
>

There are some tools that are built on `mir`, but it's not as 
well developed as some other languages. Shigeki Karita [1] has 
done some work here, like on `grain` or `tfd`. It's hard with 
less man power. There are also tools to call functions from other 
languages, like python or R. And you can also interface with C.

[1] https://github.com/ShigekiKarita