test_bg_vat.doctest - more detailed doctests for stdnum.bg.vat module

Copyright (C) 2012 Arthur de Jong

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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.

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This file contains more detailed doctests for the stdnum.bg.vat module. It
tries to cover more corner cases and detailed functionality that is not
really useful as module documentation.

>>> from stdnum.bg import vat


Normal values that should just work.

>>> vat.is_valid('103873594')  # 9-digit legal entity
True
>>> vat.is_valid('131272009')  # legal entity with fallback checksum
True
>>> vat.is_valid('7501020018')  # physical person
True
>>> vat.is_valid('8001010008')  # physical person
True
>>> vat.is_valid('8032056031')  # physical person
True
>>> vat.is_valid('7111042925')  # foreigners
True
>>> vat.is_valid('7153849522')  # others
True


Invalid checksum:

>>> vat.is_valid('175074751')  # invalid check digit
False