test_pt_cc.doctest - more detailed doctests for stdnum.pt.cc module

Copyright (C) 2021 Arthur de Jong

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

>>> from stdnum.pt import cc


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

>>> numbers = '''
...
... 04521224 4 ZZ 7
... 054546796ZY7
... 101490801ZY0
...
... '''
>>> [x for x in numbers.splitlines() if x and not cc.is_valid(x)]
[]