1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
#! /usr/bin/env python3
# $Id: test_substitution_expansion_length_limit.py 10037 2025-03-08 18:12:13Z aa-turner $
# Author: David Goodger <goodger@python.org>
# Copyright: This module has been placed in the public domain.
"""
Tests for docutils.transforms.references.Substitutions.
"""
from pathlib import Path
import sys
import unittest
if __name__ == '__main__':
# prepend the "docutils root" to the Python library path
# so we import the local `docutils` package.
sys.path.insert(0, str(Path(__file__).resolve().parents[2]))
from docutils.frontend import get_default_settings
from docutils.parsers.rst import Parser
from docutils.transforms.references import Substitutions
from docutils.transforms.universal import TestMessages
from docutils.utils import new_document
class TransformTestCase(unittest.TestCase):
def test_transforms(self):
parser = Parser()
settings = get_default_settings(Parser)
settings.warning_stream = ''
settings.line_length_limit = 80
for name, (transforms, cases) in totest.items():
for casenum, (case_input, case_expected) in enumerate(cases):
with self.subTest(id=f'totest[{name!r}][{casenum}]'):
document = new_document('test data', settings.copy())
parser.parse(case_input, document)
# Don't do a ``populate_from_components()`` because that
# would enable the Transformer's default transforms.
document.transformer.add_transforms(transforms)
document.transformer.add_transform(TestMessages)
document.transformer.apply_transforms()
output = document.pformat()
self.assertEqual(case_expected, output)
# pseudoxml representation of the substitution definition content:
a = ' lol'
b = ' 10^1 \n' + '\n \n'.join(10 * [a])
c = ' 10^2 \n' + '\n \n'.join(10 * [b])
totest = {}
totest['substitutions'] = ((Substitutions,), [
["""\
The billion laughs attack for ReStructuredText:
.. |a| replace:: lol
.. |b| replace:: 10^1 |a| |a| |a| |a| |a| |a| |a| |a| |a| |a|
.. |c| replace:: 10^2 |b| |b| |b| |b| |b| |b| |b| |b| |b| |b|
.. ...
|a| |c| continuation text
""",
f"""\
<document source="test data">
<paragraph>
The billion laughs attack for ReStructuredText:
<substitution_definition names="a">
lol
<substitution_definition names="b">
{b}
<substitution_definition names="c">
{c}
<comment xml:space="preserve">
...
<paragraph>
lol
\n\
<problematic ids="problematic-1" refid="system-message-1">
|c|
continuation text
<system_message backrefs="problematic-1" ids="system-message-1" level="3" line="9" source="test data" type="ERROR">
<paragraph>
Substitution definition "c" exceeds the line-length-limit.
"""],
])
if __name__ == '__main__':
unittest.main()
|
