mirror of
https://github.com/django/django.git
synced 2024-12-30 21:16:26 +00:00
2a55301f9f
The function no longer flushes zfile after each write as doing so can
lead to the gzipped streamed content being larger than the original
content; each flush adds a 5/6 byte type 0 block. Removing this means
buf.read() may return nothing, so only yield if that has some data.
Testing shows without the flush() the buffer is being flushed every 17k
or so and compresses the same as if it had been done as a whole string.
Backport of caa3562d5b from master
237 lines
10 KiB
Python
237 lines
10 KiB
Python
# -*- coding: utf-8 -*-
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from __future__ import unicode_literals
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import json
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import warnings
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from unittest import skipUnless
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from django.test import SimpleTestCase, ignore_warnings
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from django.test.utils import reset_warning_registry
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from django.utils import six, text
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from django.utils.deprecation import RemovedInDjango19Warning
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from django.utils.encoding import force_text
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from django.utils.functional import lazy
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from django.utils.translation import override
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lazystr = lazy(force_text, six.text_type)
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IS_WIDE_BUILD = (len('\U0001F4A9') == 1)
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class TestUtilsText(SimpleTestCase):
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def test_get_text_list(self):
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self.assertEqual(text.get_text_list(['a', 'b', 'c', 'd']), 'a, b, c or d')
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self.assertEqual(text.get_text_list(['a', 'b', 'c'], 'and'), 'a, b and c')
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self.assertEqual(text.get_text_list(['a', 'b'], 'and'), 'a and b')
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self.assertEqual(text.get_text_list(['a']), 'a')
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self.assertEqual(text.get_text_list([]), '')
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with override('ar'):
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self.assertEqual(text.get_text_list(['a', 'b', 'c']), "a، b أو c")
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def test_smart_split(self):
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testdata = [
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('This is "a person" test.',
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['This', 'is', '"a person"', 'test.']),
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('This is "a person\'s" test.',
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['This', 'is', '"a person\'s"', 'test.']),
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('This is "a person\\"s" test.',
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['This', 'is', '"a person\\"s"', 'test.']),
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('"a \'one',
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['"a', "'one"]),
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('all friends\' tests',
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['all', 'friends\'', 'tests']),
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('url search_page words="something else"',
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['url', 'search_page', 'words="something else"']),
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("url search_page words='something else'",
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['url', 'search_page', "words='something else'"]),
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('url search_page words "something else"',
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['url', 'search_page', 'words', '"something else"']),
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('url search_page words-"something else"',
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['url', 'search_page', 'words-"something else"']),
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('url search_page words=hello',
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['url', 'search_page', 'words=hello']),
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('url search_page words="something else',
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['url', 'search_page', 'words="something', 'else']),
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("cut:','|cut:' '",
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["cut:','|cut:' '"]),
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(lazystr("a b c d"), # Test for #20231
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['a', 'b', 'c', 'd']),
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]
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for test, expected in testdata:
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self.assertEqual(list(text.smart_split(test)), expected)
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def test_truncate_chars(self):
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truncator = text.Truncator(
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'The quick brown fox jumped over the lazy dog.'
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)
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self.assertEqual('The quick brown fox jumped over the lazy dog.',
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truncator.chars(100)),
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self.assertEqual('The quick brown fox ...',
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truncator.chars(23)),
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self.assertEqual('The quick brown fo.....',
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truncator.chars(23, '.....')),
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# Ensure that we normalize our unicode data first
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nfc = text.Truncator('o\xfco\xfco\xfco\xfc')
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nfd = text.Truncator('ou\u0308ou\u0308ou\u0308ou\u0308')
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self.assertEqual('oüoüoüoü', nfc.chars(8))
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self.assertEqual('oüoüoüoü', nfd.chars(8))
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self.assertEqual('oü...', nfc.chars(5))
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self.assertEqual('oü...', nfd.chars(5))
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# Ensure the final length is calculated correctly when there are
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# combining characters with no precomposed form, and that combining
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# characters are not split up.
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truncator = text.Truncator('-B\u030AB\u030A----8')
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self.assertEqual('-B\u030A...', truncator.chars(5))
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self.assertEqual('-B\u030AB\u030A-...', truncator.chars(7))
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self.assertEqual('-B\u030AB\u030A----8', truncator.chars(8))
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# Ensure the length of the end text is correctly calculated when it
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# contains combining characters with no precomposed form.
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truncator = text.Truncator('-----')
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self.assertEqual('---B\u030A', truncator.chars(4, 'B\u030A'))
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self.assertEqual('-----', truncator.chars(5, 'B\u030A'))
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# Make a best effort to shorten to the desired length, but requesting
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# a length shorter than the ellipsis shouldn't break
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self.assertEqual('...', text.Truncator('asdf').chars(1))
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def test_truncate_words(self):
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truncator = text.Truncator('The quick brown fox jumped over the lazy '
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'dog.')
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self.assertEqual('The quick brown fox jumped over the lazy dog.',
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truncator.words(10))
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self.assertEqual('The quick brown fox...', truncator.words(4))
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self.assertEqual('The quick brown fox[snip]',
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truncator.words(4, '[snip]'))
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def test_truncate_html_words(self):
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truncator = text.Truncator('<p id="par"><strong><em>The quick brown fox'
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' jumped over the lazy dog.</em></strong></p>')
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self.assertEqual('<p id="par"><strong><em>The quick brown fox jumped over'
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' the lazy dog.</em></strong></p>', truncator.words(10, html=True))
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self.assertEqual('<p id="par"><strong><em>The quick brown fox...</em>'
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'</strong></p>', truncator.words(4, html=True))
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self.assertEqual('<p id="par"><strong><em>The quick brown fox....</em>'
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'</strong></p>', truncator.words(4, '....', html=True))
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self.assertEqual('<p id="par"><strong><em>The quick brown fox</em>'
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'</strong></p>', truncator.words(4, '', html=True))
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# Test with new line inside tag
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truncator = text.Truncator('<p>The quick <a href="xyz.html"\n'
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'id="mylink">brown fox</a> jumped over the lazy dog.</p>')
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self.assertEqual('<p>The quick <a href="xyz.html"\n'
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'id="mylink">brown...</a></p>', truncator.words(3, '...', html=True))
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# Test self-closing tags
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truncator = text.Truncator('<br/>The <hr />quick brown fox jumped over'
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' the lazy dog.')
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self.assertEqual('<br/>The <hr />quick brown...',
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truncator.words(3, '...', html=True))
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truncator = text.Truncator('<br>The <hr/>quick <em>brown fox</em> '
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'jumped over the lazy dog.')
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self.assertEqual('<br>The <hr/>quick <em>brown...</em>',
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truncator.words(3, '...', html=True))
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# Test html entities
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truncator = text.Truncator('<i>Buenos días!'
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' ¿Cómo está?</i>')
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self.assertEqual('<i>Buenos días! ¿Cómo...</i>',
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truncator.words(3, '...', html=True))
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truncator = text.Truncator('<p>I <3 python, what about you?</p>')
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self.assertEqual('<p>I <3 python...</p>',
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truncator.words(3, '...', html=True))
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def test_wrap(self):
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digits = '1234 67 9'
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self.assertEqual(text.wrap(digits, 100), '1234 67 9')
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self.assertEqual(text.wrap(digits, 9), '1234 67 9')
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self.assertEqual(text.wrap(digits, 8), '1234 67\n9')
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self.assertEqual(text.wrap('short\na long line', 7),
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'short\na long\nline')
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self.assertEqual(text.wrap('do-not-break-long-words please? ok', 8),
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'do-not-break-long-words\nplease?\nok')
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long_word = 'l%sng' % ('o' * 20)
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self.assertEqual(text.wrap(long_word, 20), long_word)
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self.assertEqual(text.wrap('a %s word' % long_word, 10),
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'a\n%s\nword' % long_word)
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def test_normalize_newlines(self):
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self.assertEqual(text.normalize_newlines("abc\ndef\rghi\r\n"),
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"abc\ndef\nghi\n")
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self.assertEqual(text.normalize_newlines("\n\r\r\n\r"), "\n\n\n\n")
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self.assertEqual(text.normalize_newlines("abcdefghi"), "abcdefghi")
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self.assertEqual(text.normalize_newlines(""), "")
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def test_normalize_newlines_bytes(self):
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"""normalize_newlines should be able to handle bytes too"""
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normalized = text.normalize_newlines(b"abc\ndef\rghi\r\n")
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self.assertEqual(normalized, "abc\ndef\nghi\n")
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self.assertIsInstance(normalized, six.text_type)
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def test_slugify(self):
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items = (
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('Hello, World!', 'hello-world'),
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('spam & eggs', 'spam-eggs'),
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)
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for value, output in items:
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self.assertEqual(text.slugify(value), output)
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def test_unescape_entities(self):
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items = [
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('', ''),
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('foo', 'foo'),
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('&', '&'),
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('&', '&'),
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('&', '&'),
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('foo & bar', 'foo & bar'),
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('foo & bar', 'foo & bar'),
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]
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for value, output in items:
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self.assertEqual(text.unescape_entities(value), output)
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def test_get_valid_filename(self):
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filename = "^&'@{}[],$=!-#()%+~_123.txt"
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self.assertEqual(text.get_valid_filename(filename), "-_123.txt")
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def test_compress_sequence(self):
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data = [{'key': i} for i in range(10)]
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seq = list(json.JSONEncoder().iterencode(data))
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seq = [s.encode('utf-8') for s in seq]
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actual_length = len(b''.join(seq))
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out = text.compress_sequence(seq)
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compressed_length = len(b''.join(out))
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self.assertTrue(compressed_length < actual_length)
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@ignore_warnings(category=RemovedInDjango19Warning)
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def test_javascript_quote(self):
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input = "<script>alert('Hello \\xff.\n Welcome\there\r');</script>"
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output = r"<script>alert(\'Hello \\xff.\n Welcome\there\r\');<\/script>"
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self.assertEqual(text.javascript_quote(input), output)
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# Exercising quote_double_quotes keyword argument
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input = '"Text"'
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self.assertEqual(text.javascript_quote(input), '"Text"')
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self.assertEqual(text.javascript_quote(input, quote_double_quotes=True),
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'"Text"')
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@ignore_warnings(category=RemovedInDjango19Warning)
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@skipUnless(IS_WIDE_BUILD, 'Not running in a wide build of Python')
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def test_javascript_quote_unicode(self):
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input = "<script>alert('Hello \\xff.\n Wel𝕃come\there\r');</script>"
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output = r"<script>alert(\'Hello \\xff.\n Wel𝕃come\there\r\');<\/script>"
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self.assertEqual(text.javascript_quote(input), output)
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def test_deprecation(self):
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reset_warning_registry()
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with warnings.catch_warnings(record=True) as w:
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warnings.simplefilter("always")
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text.javascript_quote('thingy')
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self.assertEqual(len(w), 1)
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self.assertIn('escapejs()', repr(w[0].message))
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