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# -*- coding: utf-8 -*-
from __future__ import unicode_literals, absolute_import
import os
import sys
from collections import defaultdict
from io import StringIO
import os
import re
import unittest
import dateutil.tz
from lxml import etree
import mock
from .base import LocaleSupportInTesting
import nikola
fake_conf = defaultdict(str)
fake_conf['TIMEZONE'] = 'UTC'
fake_conf['__tzinfo__'] = dateutil.tz.tzutc()
fake_conf['DEFAULT_LANG'] = 'en'
fake_conf['TRANSLATIONS'] = {'en': ''}
fake_conf['BASE_URL'] = 'http://some.blog/'
fake_conf['BLOG_AUTHOR'] = nikola.nikola.utils.TranslatableSetting('BLOG_AUTHOR', 'Nikola Tesla', ['en'])
fake_conf['TRANSLATIONS_PATTERN'] = '{path}.{lang}.{ext}'
class FakeCompiler(object):
demote_headers = False
compile_html = None
extension = lambda self: '.html'
name = "fake"
def read_metadata(*args, **kwargs):
return {}
def register_extra_dependencies(self, post):
pass
class RSSFeedTest(unittest.TestCase):
def setUp(self):
LocaleSupportInTesting.initialize_locales_for_testing('unilingual')
self.blog_url = "http://some.blog"
with mock.patch('nikola.post.get_meta',
mock.Mock(return_value=(
({'title': 'post title',
'slug': 'awesome_article',
'date': '2012-10-01 22:41',
'author': None,
'tags': 'tags',
'link': 'link',
'description': 'description',
'enclosure': 'http://www.example.org/foo.mp3',
'enclosure_length': '5'},
True)
))):
with mock.patch('nikola.nikola.utils.os.path.isdir',
mock.Mock(return_value=True)):
with mock.patch('nikola.nikola.Post.text',
mock.Mock(return_value='some long text')):
example_post = nikola.nikola.Post('source.file',
fake_conf,
'blog_folder',
True,
{'en': ''},
'post.tmpl',
FakeCompiler())
opener_mock = mock.mock_open()
with mock.patch('nikola.nikola.io.open', opener_mock, create=True):
nikola.nikola.Nikola().generic_rss_renderer('en',
"blog_title",
self.blog_url,
"blog_description",
[example_post,
],
'testfeed.rss',
True,
False)
opener_mock.assert_called_once_with(
'testfeed.rss', 'w+', encoding='utf-8')
# Python 3 / unicode strings workaround
# lxml will complain if the encoding is specified in the
# xml when running with unicode strings.
# We do not include this in our content.
file_content = [
call[1][0]
for call in opener_mock.mock_calls[2:-1]][0]
splitted_content = file_content.split('\n')
self.encoding_declaration = splitted_content[0]
content_without_encoding_declaration = splitted_content[1:]
self.file_content = '\n'.join(
content_without_encoding_declaration)
def tearDown(self):
pass
def test_feed_items_have_valid_URLs(self):
'''The items in the feed need to have valid urls in link and guid.'''
# This validation regex is taken from django.core.validators
url_validation_regex = re.compile(r'^(?:http|ftp)s?://' # http:// or https://
r'(?:(?:[A-Z0-9](?:[A-Z0-9-]{0,61}[A-Z0-9])?\.)+(?:[A-Z]{2,6}\.?|[A-Z0-9-]{2,}\.?)|' # domain...
r'localhost|' # localhost...
r'\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}|' # ...or ipv4
r'\[?[A-F0-9]*:[A-F0-9:]+\]?)' # ...or ipv6
r'(?::\d+)?' # optional port
r'(?:/?|[/?]\S+)$', re.IGNORECASE)
def is_valid_URL(url):
return url_validation_regex.match(url) is not None
et = etree.parse(StringIO(self.file_content))
channel = et.find('channel')
item = channel.find('item')
guid = item.find('guid')
link = item.find('link')
# As stated by W3 FEED Validator: "link must be a full and valid URL"
self.assertTrue(is_valid_URL(link.text),
'The following URL is not valid: %s' % link.text)
self.assertTrue(self.blog_url in link.text)
# "guid must be a full URL, unless isPermaLink attribute
# is false: /weblog/posts/the-minimal-server.html "
self.assertTrue(is_valid_URL(guid.text),
'The following URL is not valid: %s' %
guid.text)
self.assertTrue(self.blog_url in guid.text)
def test_feed_is_valid(self):
'''
A testcase to check if the generated feed is valid.
Validation can be tested with W3 FEED Validator that can be found
at http://feedvalidator.org
'''
rss_schema_filename = os.path.join(os.path.dirname(__file__),
'rss-2_0.xsd')
with open(rss_schema_filename, 'r') as rss_schema_file:
xmlschema_doc = etree.parse(rss_schema_file)
xmlschema = etree.XMLSchema(xmlschema_doc)
document = etree.parse(StringIO(self.file_content))
self.assertTrue(xmlschema.validate(document))
if __name__ == '__main__':
unittest.main()
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