test_eu_excise.doctest

test_eu_excise.doctest - more detailed doctests for the stdnum.eu.excise module

Copyright (C) 2023 Cédric Krier

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA

This file contains more detailed doctests for the stdnum.eu.excise module. It
tries to validate a number of Excise numbers that have been found online.

>>> from stdnum.eu import excise
>>> from stdnum.exceptions import *

These have been found online and should all be valid numbers.

>>> numbers = '''
...
... LU 00000987ABC
... FR012907E0820
... '''
>>> [x for x in numbers.splitlines() if x and not excise.is_valid(x)]
[]

The following numbers are wrong in one way or another. First we need a
function to be able to determine the kind of error.

>>> def caught(number, exception):
...     try:
...         excise.validate(number)
...         return False
...     except exception:
...         return True
...


These numbers should be mostly valid except that they have the wrong length.

>>> numbers = '''
...
... LU987ABC
... '''
>>> [x for x in numbers.splitlines() if x and not caught(x, InvalidLength)]
[]

These numbers should be mostly valid except that they have the wrong prefix

>>> numbers = '''
...
... XX00000987ABC
... '''
>>> [x for x in numbers.splitlines() if x and not caught(x, InvalidComponent)]
[]