new error

[Cato Nano]

In testing my module for the first time, this error is reported

----------------------------------------------------------------------
Traceback (most recent call last):
File "/home/catonano/tributi/env/lib/python3.6/site-packages/trytond/tests/test_tryton.py", line 198, in wrapper
result = func(*args, **kwargs)
File "/home/catonano/tributi/env/lib/python3.6/site-packages/trytond/tests/test_tryton.py", line 361, in test_field_methods
getattr(record, attr)()
File "/home/catonano/tributi/env/lib/python3.6/site-packages/trytond/model/fields/field.py", line 106, in wrapper
return func(self, *args, **kwargs)
File "/home/catonano/tributi/build/lib/trytond/modules/tributi/affissione.py", line 38, in on_change_with_fattoreGiorni
ng = abs((self.on_change_with_bollettaDataFine() - self.on_change_with_bollettaDataInizio()).days)
TypeError: unsupported operand type(s) for -: 'NoneType' and 'NoneType'

----------------------------------------------------------------------

but when I run it in the GUI, fattoreGiorni DOES WORK

I swear !

You can see a picture here
https://imgur.com/a/kUUjs

[Sergi Almacellas Abellana]

El 22/01/18 a les 05:11, Cato Nano ha escrit:

> In testing my module for the first time, this error is reported
>
> ----------------------------------------------------------------------
> Traceback (most recent call last):
> File "/home/catonano/tributi/env/lib/python3.6/site-packages/trytond/tests/test_tryton.py", line 198, in wrapper
> result = func(*args, **kwargs)
> File "/home/catonano/tributi/env/lib/python3.6/site-packages/trytond/tests/test_tryton.py", line 361, in test_field_methods
> getattr(record, attr)()
> File "/home/catonano/tributi/env/lib/python3.6/site-packages/trytond/model/fields/field.py", line 106, in wrapper
> return func(self, *args, **kwargs)
> File "/home/catonano/tributi/build/lib/trytond/modules/tributi/affissione.py", line 38, in on_change_with_fattoreGiorni
> ng = abs((self.on_change_with_bollettaDataFine() - self.on_change_with_bollettaDataInizio()).days)
> TypeError: unsupported operand type(s) for -: 'NoneType' and 'NoneType'
>
> ----------------------------------------------------------------------

The problem is that both on_change functions return a None value and
python does not know how too substract None from None. That's because
the test suite call all on_change functions with an empty object to
ensure that they correctly work when there is no value on the form.

You should take in account None values on your function.

>
>
> but when I run it in the GUI, fattoreGiorni DOES WORK
>
> I swear !
>
> You can see a picture here
> https://imgur.com/a/kUUjs
>

--
Sergi Almacellas Abellana
www.koolpi.com
Twitter: @pokoli_srk

[Cato Nano]

Thank you Sergi

I managed to give my date fiuelds default values AND make my methods return a date _anyway_.

That allowed the tests to pass