Dear Martin,

Your approach to test cases is quite valuable for more structured projects
and for automation. For something that's either quick&dirty or w/out much
architectural certainty to it, I would still prefer the handy one-liners.
Nonetheless, thanks for the example!

Best,
Dmitrii.

чт, 27 июн. 2019 г. в 04:09, Martin Alsinet <martin@alsinet.com.ar>:

> Dmitrii,
>
> I use a different approach, where I tangle the source into files in
> modules and then I import those modules from other blocks.
> This allows me to organize my document with different sections for the
> code and its tests, which then get exported into their corresponding files.
>
>
> * Square Function
>
> This function receives a number and returns its square
>
> #+BEGIN_SRC python :tangle ./utils/math.py :mkdirp yes
> def square(x):
>     return x * x
> #+END_SRC
>
> ** __init__.py (module setup)
>
> #+begin_src python :tangle ./utils/__init__.py :mkdirp yes
> from utils.math import square
>
> #+end_src
>
> ** Test cases
>
> 1. The square of five should be 25
> 2. The square of zero should be 0
> 3. The square of a negative number should be positive
>
> #+BEGIN_SRC python :tangle ./utils/test_square.py :mkdirp yes
> from utils.math import square
>
> def test_square_of_five():
>     assert square(5) == 25
>
> def test_square_of_zero():
>     assert square(0) == 0
>
> def test_square_of_negative():
>     assert square(-5) > 0
> #+END_SRC
>
> *** Run tests
>
> #+begin_src sh :results output raw
> pytest ./utils
> #+end_src
>
> #+RESULTS:
> ============================= test session starts
> ==============================
> platform linux -- Python 3.7.3, pytest-4.6.3, py-1.8.0, pluggy-0.12.0
> rootdir: /app
> collected 3 items
>
> utils/test_square.py ...
> [100%]
>
> =========================== 3 passed in 0.08 seconds
> ===========================
>
>
>
>
>
>
> On Wed, Apr 24, 2019 at 2:19 PM Dmitrii Korobeinikov <dim1212k@gmail.com>
> wrote:
>
>> Sorry for not answering these two days.
>>
>> You are right, that's an option.
>> But I just don't think that's the best possible one - for usability.
>>
>> Introducing this would imply architectural decisions, so it might not be
>> immediately clear if it's right or not.
>> Especially that the improvement might not seem that big.
>> So, I understand that.
>>
>> I have proposed buffer lenses today and they seem like something that can
>> solve the issue from the user side. Hopefully they will get some traction.
>>
>> пн, 22 апр. 2019 г. в 23:31, Berry, Charles <ccberry@ucsd.edu>:
>>
>>>
>>>
>>> > On Apr 22, 2019, at 10:15 AM, Dmitrii Korobeinikov <dim1212k@gmail.com>
>>> wrote:
>>> >
>>> > Thank you!
>>> > That's a handy technique and it does help.
>>> > As I understand, there's no way to extend that to multiple lines?
>>>
>>> AFAICS, no there is no way to split the :epilogue arg to multiple lines.
>>>
>>> Of course, you can always follow a src block that provides a function
>>> with another src block that imports the code via noweb and then tests the
>>> function with as many lines of code as you need.
>>>
>>> Chuck
>>>
>>>
>>>
>>>