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
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
|
# Copyright 2012 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
"""Tests for the Gumbo => Html5lib adapter."""
import codecs
import collections
import glob
import os
import re
import StringIO
import unittest
import warnings
from html5lib import treebuilders
import html5lib_adapter
TREEBUILDER = treebuilders.getTreeBuilder('dom')
TESTDATA_BASE_PATH = os.path.join(
os.path.split(__file__)[0], '..', '..')
# Copied from html5lib.tests/test_parser.py
def convertTreeDump(data):
return "\n".join(convertExpected(data, 3).split("\n")[1:])
# Copied/adapted/simplified from html5lib.tests/support.py
def html5lib_test_files():
return glob.glob(os.path.join(
TESTDATA_BASE_PATH, 'testdata', 'tree-construction', '*.dat'))
class TestData(object):
def __init__(self, filename):
self.f = codecs.open(filename, encoding="utf8")
def __iter__(self):
data = collections.defaultdict(lambda: None)
key=None
for line in self.f:
heading = self.isSectionHeading(line)
if heading:
if data and heading == 'data':
#Remove trailing newline
data[key] = data[key][:-1]
yield self.normaliseOutput(data)
data = collections.defaultdict(lambda: None)
key = heading
data[key] = ''
elif key is not None:
data[key] += line
if data:
yield self.normaliseOutput(data)
def isSectionHeading(self, line):
"""If the current heading is a test section heading return the heading,
otherwise return False"""
if line.startswith("#"):
return line[1:].strip()
else:
return False
def normaliseOutput(self, data):
# Remove trailing newlines
for key, value in data.iteritems():
if value.endswith("\n"):
data[key] = value[:-1]
return data
def convertExpected(data, stripChars):
"""convert the output of str(document) to the format used in the testcases"""
data = data.split("\n")
rv = []
for line in data:
if line.startswith("|"):
rv.append(line[stripChars:])
else:
rv.append(line)
return "\n".join(rv)
def reformatTemplateContents(expected):
lines = expected.split('\n')
retval = []
template_indents = []
for line in lines:
line_stripped = line.strip()
indent = len(line) - len(line_stripped)
if line_stripped == 'content':
template_indents.append(indent)
continue
while template_indents and indent <= template_indents[-1]:
template_indents.pop()
if template_indents:
line = line[2 * len(template_indents):]
retval.append(line)
return '\n'.join(retval)
class Html5libAdapterTest(unittest.TestCase):
"""Adapter between Gumbo and the html5lib tests.
This works through a bit of magic. It's an empty class at first, but then
buildTestCases runs through the test files in html5lib, and adds a
method to this class for each one. That method acts like
test_parser.TestCase.runParserTest, running a parse, serializing the tree, and
comparing it to the expected output.
The vague name is so nosetests doesn't try to run it as a test.
"""
def impl(self, inner_html, input, expected, errors):
p = html5lib_adapter.HTMLParser(
tree=TREEBUILDER(namespaceHTMLElements=True))
if inner_html:
document = p.parseFragment(
StringIO.StringIO(input), inner_html.replace('math ', 'mathml '))
else:
document = p.parse(StringIO.StringIO(input))
with warnings.catch_warnings():
# Etree serializer in html5lib uses a deprecated getchildren() API.
warnings.filterwarnings('ignore', category=DeprecationWarning)
output = convertTreeDump(p.tree.testSerializer(document))
expected = re.compile(r'^(\s*)<(\S+)>', re.M).sub(
r'\1<html \2>', convertExpected(expected, 2))
# html5lib doesn't yet support the template tag, but it appears in the
# tests with the expectation that the template contents will be under the
# word 'contents', so we need to reformat that string a bit.
expected = reformatTemplateContents(expected)
error_msg = '\n'.join(['\n\nInput:', input, '\nExpected:', expected,
'\nReceived:', output])
self.assertEquals(expected, output,
error_msg.encode('ascii', 'xmlcharrefreplace') + '\n')
# TODO(jdtang): Check error messages, when there's full error support.
def BuildTestCases(cls):
for filename in html5lib_test_files():
test_name = os.path.basename(filename).replace('.dat', '')
for i, test in enumerate(TestData(filename)):
# html5lib parses <noscript> tags as if the scripting-enabled flag is
# set, while we parse as if the scripting-disabled flag is set (since we
# don't really support scripting and the resulting parse tree is often
# more useful for toolsmiths). That means our output will differ by
# design from html5lib's, so we disable any of their tests that involve
# <noscript>
if '<noscript>' in test['data']:
continue
# <command> has been renamed to <menuitem> in recent versions of the spec.
# html5lib 0.95 does not include this yet, and so we disable tests that
# include the old tag.
if '<command>' in test['data']:
continue
def test_func(
self,
inner_html=test['document-fragment'],
input=test['data'],
expected=test['document'],
errors=test.get('errors', '').split('\n')):
return self.impl(inner_html, input, expected, errors)
test_func.__name__ = 'test_%s_%d' % (test_name, i + 1)
setattr(cls, test_func.__name__, test_func)
if __name__ == '__main__':
BuildTestCases(Html5libAdapterTest)
unittest.main()
|
