It's also interesting to note that I most often write my clojure.test code
thusly:
(is (= (some-function some-val)
42))
Which reads pretty much the same way, but without (many) macros.
Technically `is` is a deep walking macro, but that's more about error
reporting than DSLs.
Timothy
On Sun, Jan 31, 2016 at 9:05 AM, Brian Marick <mar...@exampler.com> wrote:
>
>
> Timothy Baldridge wrote:
>
>> This is a good example of a DSL, and it falls under the criticisms I
>> level at most DSLs, mainly they aren't Clojure. If we dive into
>>
>
> I note that Midje once had an intermediate “semi-sweet” functional
> interface that the `fact` macro expanded into. (It was most similar to
> Expectations’.) That’s because I was originally thinking the syntax was a
> little extreme and people would prefer something Lispy or to invent their
> own.
>
> At some point, the extra level of translation got annoying, so I asked on
> the mailing list if anyone objected to my deleting it. No one did.
>
> So there is some user demand for a DSL.
>
> And I think there’s probably a reason why /The Joy of Clojure/ and other
> books write examples in a left-right format like:
>
> (if true :truthy :falsey) ;=> :truthy
>
> … rather than:
>
> (is (= :truthy (if true :truthy :falsey)))
>
> I broadly agree with the idea of avoiding complex macros as DSLs. But
> testing - like textbooks - is a domain where understandability by someone
> new to an API is really important. So it’s a place where user experience
> might trump general principles.
>
>
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