test_doctest - more detailed doctests for the stdnum.iso6346 package

Copyright (C) 2014 Openlabs Technologies & Consulting (P) Limited

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This file contains more detailed doctests for the stdnum.iso7064 package. It
tries to test more corner cases and detailed functionality that is not
really useful as module documentation.

>>> from stdnum import iso6346


Test with valid numbers:

>>> iso6346.validate('CSQU3054383')
'CSQU3054383'
>>> iso6346.is_valid('CSQU3054383')
True
>>> iso6346.validate('csqu3054383')
'CSQU3054383'
>>> iso6346.is_valid('csQU3054383')
True
>>> iso6346.validate('tcnu7200794')
'TCNU7200794'
>>> iso6346.validate('tolu4734787')
'TOLU4734787'
>>> iso6346.validate('GYOU4047990')
'GYOU4047990'


Test with invalid numbers:

>>> iso6346.validate('CSQU3054384')
Traceback (most recent call last):
    ...
InvalidChecksum: ...
>>> iso6346.validate('CSQU305438')
Traceback (most recent call last):
    ...
InvalidLength: ...
>>> iso6346.is_valid('CSQU3054384')
False
>>> iso6346.validate('CSQU3054Z83')
Traceback (most recent call last):
    ...
InvalidFormat: ...