tests/test_de_idnr.doctest


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test_de_idnr.doctest - more detailed doctests for stdnum.de.idnr module

Copyright (C) 2017 Holvi Payment Services Oy
Copyright (C) 2017 Arthur de Jong

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.de.idnr module. It
tries to test more corner cases and detailed functionality that is not really
useful as module documentation.

>>> from stdnum.de import idnr


The number should be 11 digits long, should contain only numbers and cannot
start with a zero.

>>> idnr.validate('116574261809')
Traceback (most recent call last):
    ...
InvalidLength: ...
>>> idnr.validate('A6574261809')
Traceback (most recent call last):
    ...
InvalidFormat: ...
>>> idnr.validate('01234567896')
Traceback (most recent call last):
    ...
InvalidFormat: ...


The first 10 digits of the IdNr is supposed to contain exactly one digit
twice (or three times since 2016) and all other digits in the number can only
appear once. This tries to catch some corner cases. Note that only the first
10 digits are considered for this.

>>> idnr.validate('1234567890 3')  # each digit once
Traceback (most recent call last):
    ...
InvalidFormat: ...
>>> idnr.validate('1123456789 0')  # one digit twice
'11234567890'
>>> idnr.validate('1112345678 6')  # one digit three times
'11123456786'
>>> idnr.validate('1111234567 8')  # one digit four times
Traceback (most recent call last):
    ...
InvalidFormat: ...
>>> idnr.validate('1122345678 5')  # two digits more than once
Traceback (most recent call last):
    ...
InvalidFormat: ...