8 hours ago, Matthias Felleisen wrote:
>
> On Apr 30, 2012, at 7:05 PM, Eli Barzilay wrote:
>
> > 3. If you use nightly builds, you can put the test code in a
> > sub-module:
> >
> > #lang racket
> > ...
> > (module+ test (require rackunit))
> > ...
> > (module+ test ...test code here...)
> > ...
>
> I have added this sketch to the Style guide, replacing my own manual
> method with this new notion:
>
>
> http://www.ccs.neu.edu/home/matthias/Style/style/Units_of_Code.html#(part._.Sections_and_.Sub-modules)
>
> Note that this won't work in 5.2.1 yet. -- Matthias
BTW, there should also be a note there about not doing this for
distributed code because of the added dependencies.
And related to that, there's also a convenient pattern that I started
for a bunch of test files for a collection. Note that since this is
intended for *test* files, it plays with the `main' submodule, not
with the `test' one. (The `test' thing is useful for files that are
used for testing and separately for their functionality.)
I make each of the files look like this:
#lang racket
(require tests/eli-tester) ; same for rackunit but see below[*]
(define utility ...) ; if needed
(provide test-this) ;*
(module+ main (test-this)) ;* <-- `main', not `test'
(define (test-this) ;*
(test ...stuff...))
; possibly the same for additional test collections
The three marked lines make `test-this' run in test mode and also make
it available outside. Now I can write the main test module:
#lang racket
(require tests/eli-tester "test-this.rkt" "test-that.rkt")
(test (test-this) (test-that)) ; see below[*]
This sets things up in a similar way to Matthew's core tests setup
that is in tests/racket/* -- I can now run either
racket test-this.rkt
or
racket main.rkt
to run just the subset or everything. Matthew's setup achieves the
same with some global namespace tricks (and using `load').
[*] The same could be done with rackunit, but note that this actually
covers a feature that it provides (at least with the gui, IIRC) for
running only some of the tests. I like this setup because it uses the
language for doing a similar thing. (And that goes particularly well
with my tester's philosophy of leaving as much as possible to the
language.)
--
((lambda (x) (x x)) (lambda (x) (x x))) Eli Barzilay:
http://barzilay.org/ Maze is Life!
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