/usr/share/pyshared/zope/dublincore/tests/test_dcsv.py is in python-zope.dublincore 3.8.2-0ubuntu1.
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#
# Copyright (c) 2003 Zope Foundation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
"""Test the Dublib Core Structured Value support functions.
"""
import unittest
from doctest import DocTestSuite
from zope.dublincore.dcsv import encode, decode
# TODO still need tests for errors, and createMapping()
def test_decode_empty():
"""
>>> decode('')
[]
>>> decode(' ')
[]
"""
def test_decode_simple_value():
"""
>>> decode('v')
[('', 'v')]
>>> decode(' v ')
[('', 'v')]
>>> decode('v;')
[('', 'v')]
>>> decode(' v ; ')
[('', 'v')]
"""
def test_decode_simple_escaped_value():
# Make the docstring a raw string to avoid having escapes
# interpreted twice; each test within the docstring will be parsed
# again!
r"""
>>> decode(r'\v')
[('', 'v')]
>>> decode(r'\;')
[('', ';')]
>>> decode(r'\;;')
[('', ';')]
>>> decode(r'\= ')
[('', '=')]
>>> decode(r'\= ; ')
[('', '=')]
>>> decode(r'\\\=\; ; ')
[('', '\\=;')]
>>> decode(r'\\\=\;')
[('', '\\=;')]
>>> decode(r'\\\=\; = ; ')
[('\\=;', '')]
>>> decode(r'\;\;\;;')
[('', ';;;')]
"""
def test_decode_trailing_backslash():
r"""
>>> decode('\\')
[('', '\\')]
>>> decode('v\\')
[('', 'v\\')]
These are tricky, but for different reasons:
>>> decode(r'v\ ')
[('', 'v\\')]
>>> decode(r'v\ ; ')
[('', 'v')]
"""
def test_decode_simple_list():
"""
>>> decode('a;b;c')
[('', 'a'), ('', 'b'), ('', 'c')]
>>> decode('a;b;c;')
[('', 'a'), ('', 'b'), ('', 'c')]
"""
def test_decode_simple_escaped_list():
r"""
>>> decode(r'\a;\b;\c')
[('', 'a'), ('', 'b'), ('', 'c')]
>>> decode(r' \a ; \b ; \c ; ')
[('', 'a'), ('', 'b'), ('', 'c')]
>>> decode(r'\;;b;c')
[('', ';'), ('', 'b'), ('', 'c')]
>>> decode(r' \=;b;c;')
[('', '='), ('', 'b'), ('', 'c')]
"""
def test_decode_empty_values():
# weird case; hard to know the intent of the specification
"""
>>> decode('=')
[('', '')]
>>> decode(';')
[('', '')]
>>> decode(' ; ')
[('', '')]
>>> decode(';;')
[('', ''), ('', '')]
>>> decode(' ; ; ')
[('', ''), ('', '')]
>>> decode('=;')
[('', '')]
>>> decode(' = ; ')
[('', '')]
>>> decode('=;=;')
[('', ''), ('', '')]
>>> decode(' = ; = ; ')
[('', ''), ('', '')]
>>> decode(' = ; = ; = ')
[('', ''), ('', ''), ('', '')]
"""
def test_decode_labeled_values():
"""
>>> decode('a=b')
[('a', 'b')]
>>> decode('a=b;')
[('a', 'b')]
>>> decode('a=b;c=d')
[('a', 'b'), ('c', 'd')]
Not really sure about this one yet; assuming that the space in 'd ;'
is supposed to be removed until we have information that says
otherwise:
>>> decode('a =b; c= d ;')
[('a', 'b'), ('c', 'd')]
"""
def test_decode_mixed_values():
"""
>>> decode('a;b=c')
[('', 'a'), ('b', 'c')]
>>> decode('a=b;c')
[('a', 'b'), ('', 'c')]
>>> decode('a;b=c; ')
[('', 'a'), ('b', 'c')]
>>> decode('a=b;c ; ')
[('a', 'b'), ('', 'c')]
>>> decode('a;b;c;d=e;f;g;')
[('', 'a'), ('', 'b'), ('', 'c'), ('d', 'e'), ('', 'f'), ('', 'g')]
>>> decode('a=b;c=d;e;f=g')
[('a', 'b'), ('c', 'd'), ('', 'e'), ('f', 'g')]
"""
def test_decode_duplicate_labels():
"""
>>> decode('a=b;a=c; a=d')
[('a', 'b'), ('a', 'c'), ('a', 'd')]
"""
def test_encode_empty_list():
"""
>>> encode([])
''
"""
def test_encode_single_item():
"""
>>> encode([''])
';'
>>> encode([('', '')])
';'
>>> encode(['a'])
'a;'
>>> encode([('', 'a')])
'a;'
>>> encode([('a','')])
'a=;'
>>> encode([('a', 'b')])
'a=b;'
The label from a pair can be any non-true value:
>>> encode([(None, '')])
';'
>>> encode([(None, 'a')])
'a;'
>>> encode([(0, 'a')])
'a;'
>>> encode([((), 'a')])
'a;'
This may be a mis-feature, but seems harmless since no one in
their right mind would use it intentionally (except maybe with
None).
"""
def test_encode_single_value_needing_escapes():
r"""
>>> encode(['='])
'\\=;'
>>> encode([';'])
'\\;;'
>>> encode(['\\'])
'\\\\;'
>>> encode([r'\\'])
'\\\\\\\\;'
"""
def test_encode_labeled_value_needing_escapes():
r"""
Escaping needed in the labels:
>>> encode([('\\', '')])
'\\\\=;'
>>> encode([('\\', 'a')])
'\\\\=a;'
>>> encode([('=', '')])
'\\==;'
>>> encode([(';', 'a')])
'\\;=a;'
Escaping needed in the values:
>>> encode([('a', '\\')])
'a=\\\\;'
>>> encode([('a', '=')])
'a=\\=;'
>>> encode([('a', ';')])
'a=\\;;'
Escaping needed in both:
>>> encode([('\\', '\\')])
'\\\\=\\\\;'
>>> encode([('=', '=')])
'\\==\\=;'
>>> encode([(';', ';')])
'\\;=\\;;'
"""
def test_encode_simple_list():
"""
>>> encode(['a', 'b', 'c'])
'a; b; c;'
>>> encode(['', '', ''])
'; ; ;'
>>> encode(['a b', 'c d'])
'a b; c d;'
"""
def test_encode_labeled_values():
# Single items were tested above; these all demonstrate with more
# than one item.
"""
>>> encode([('a', ''), ('b', '')])
'a=; b=;'
>>> encode([('a', 'b'), ('c', 'd')])
'a=b; c=d;'
"""
def test_encode_mixed_items():
"""
>>> encode(['a', ('b', 'c')])
'a; b=c;'
>>> encode([('', 'a'), ('b', 'c')])
'a; b=c;'
>>> encode([('b', 'c'), 'a'])
'b=c; a;'
>>> encode([('b', 'c'), ('', 'a')])
'b=c; a;'
"""
def test_encode_error_non_strings():
"""
>>> encode([(42, '')])
Traceback (most recent call last):
...
TypeError: labels must be strings; found 42
>>> encode([('', 42)])
Traceback (most recent call last):
...
TypeError: values must be strings; found 42
>>> encode([('label', 42)])
Traceback (most recent call last):
...
TypeError: values must be strings; found 42
"""
def test_encode_error_outer_whitespace():
"""
>>> encode([' a'])
Traceback (most recent call last):
...
ValueError: values may not include leading or trailing spaces: ' a'
>>> encode(['a '])
Traceback (most recent call last):
...
ValueError: values may not include leading or trailing spaces: 'a '
>>> encode([('', 'a ')])
Traceback (most recent call last):
...
ValueError: values may not include leading or trailing spaces: 'a '
>>> encode([('label', 'a ')])
Traceback (most recent call last):
...
ValueError: values may not include leading or trailing spaces: 'a '
"""
def test_suite():
return DocTestSuite()
if __name__ == '__main__':
unittest.main(defaultTest="test_suite")
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