mirror of https://github.com/django/django.git
258 lines
12 KiB
Python
258 lines
12 KiB
Python
import json
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import sys
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from django.test import SimpleTestCase, ignore_warnings
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from django.utils import text
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from django.utils.deprecation import RemovedInDjango40Warning
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from django.utils.functional import lazystr
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from django.utils.text import format_lazy
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from django.utils.translation import gettext_lazy, override
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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('The quick brown fox jumped over the lazy dog.')
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self.assertEqual('The quick brown fox jumped over the lazy dog.', truncator.chars(100)),
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self.assertEqual('The quick brown fox …', truncator.chars(21)),
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self.assertEqual('The quick brown fo.....', truncator.chars(23, '.....')),
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self.assertEqual('.....', truncator.chars(4, '.....')),
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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(3))
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self.assertEqual('oü…', nfd.chars(3))
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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(3))
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self.assertEqual('-B\u030AB\u030A-…', truncator.chars(5))
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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(0))
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# lazy strings are handled correctly
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self.assertEqual(text.Truncator(lazystr('The quick brown fox')).chars(10), 'The quick…')
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def test_truncate_words(self):
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truncator = text.Truncator('The quick brown fox jumped over the lazy dog.')
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self.assertEqual('The quick brown fox jumped over the lazy dog.', 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]', truncator.words(4, '[snip]'))
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# lazy strings are handled correctly
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truncator = text.Truncator(lazystr('The quick brown fox jumped over the lazy dog.'))
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self.assertEqual('The quick brown fox…', truncator.words(4))
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def test_truncate_html_words(self):
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truncator = text.Truncator(
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'<p id="par"><strong><em>The quick brown fox jumped over the lazy dog.</em></strong></p>'
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)
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self.assertEqual(
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'<p id="par"><strong><em>The quick brown fox jumped over the lazy dog.</em></strong></p>',
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truncator.words(10, html=True)
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)
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self.assertEqual(
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'<p id="par"><strong><em>The quick brown fox…</em></strong></p>',
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truncator.words(4, html=True)
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)
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self.assertEqual(
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'<p id="par"><strong><em>The quick brown fox....</em></strong></p>',
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truncator.words(4, '....', html=True)
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)
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self.assertEqual(
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'<p id="par"><strong><em>The quick brown fox</em></strong></p>',
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truncator.words(4, '', html=True)
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)
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# Test with new line inside tag
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truncator = text.Truncator(
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'<p>The quick <a href="xyz.html"\n id="mylink">brown fox</a> jumped over the lazy dog.</p>'
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)
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self.assertEqual(
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'<p>The quick <a href="xyz.html"\n id="mylink">brown…</a></p>',
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truncator.words(3, html=True)
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)
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# Test self-closing tags
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truncator = text.Truncator('<br/>The <hr />quick brown fox jumped over the lazy dog.')
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self.assertEqual('<br/>The <hr />quick brown…', truncator.words(3, html=True))
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truncator = text.Truncator('<br>The <hr/>quick <em>brown fox</em> jumped over the lazy dog.')
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self.assertEqual('<br>The <hr/>quick <em>brown…</em>', truncator.words(3, html=True))
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# Test html entities
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truncator = text.Truncator('<i>Buenos días! ¿Cómo está?</i>')
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self.assertEqual('<i>Buenos días! ¿Cómo…</i>', 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>', truncator.words(3, html=True))
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re_tag_catastrophic_test = ('</a' + '\t' * 50000) + '//>'
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truncator = text.Truncator(re_tag_catastrophic_test)
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self.assertEqual(re_tag_catastrophic_test, truncator.words(500, 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), 'short\na long\nline')
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self.assertEqual(text.wrap('do-not-break-long-words please? ok', 8), '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), 'a\n%s\nword' % long_word)
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self.assertEqual(text.wrap(lazystr(digits), 100), '1234 67 9')
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def test_normalize_newlines(self):
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self.assertEqual(text.normalize_newlines("abc\ndef\rghi\r\n"), "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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self.assertEqual(text.normalize_newlines(lazystr("abc\ndef\rghi\r\n")), "abc\ndef\nghi\n")
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def test_phone2numeric(self):
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numeric = text.phone2numeric('0800 flowers')
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self.assertEqual(numeric, '0800 3569377')
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lazy_numeric = lazystr(text.phone2numeric('0800 flowers'))
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self.assertEqual(lazy_numeric, '0800 3569377')
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def test_slugify(self):
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items = (
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# given - expected - unicode?
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('Hello, World!', 'hello-world', False),
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('spam & eggs', 'spam-eggs', False),
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('spam & ıçüş', 'spam-ıçüş', True),
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('foo ıç bar', 'foo-ıç-bar', True),
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(' foo ıç bar', 'foo-ıç-bar', True),
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('你好', '你好', True),
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)
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for value, output, is_unicode in items:
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self.assertEqual(text.slugify(value, allow_unicode=is_unicode), output)
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# interning the result may be useful, e.g. when fed to Path.
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self.assertEqual(sys.intern(text.slugify('a')), 'a')
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@ignore_warnings(category=RemovedInDjango40Warning)
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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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('&am;', '&am;'),
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('&', '&'),
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('&#xk;', '&#xk;'),
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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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self.assertEqual(text.unescape_entities(lazystr(value)), output)
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def test_unescape_entities_deprecated(self):
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msg = (
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'django.utils.text.unescape_entities() is deprecated in favor of '
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'html.unescape().'
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)
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with self.assertWarnsMessage(RemovedInDjango40Warning, msg):
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text.unescape_entities('foo')
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def test_unescape_string_literal(self):
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items = [
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('"abc"', 'abc'),
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("'abc'", 'abc'),
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('"a \"bc\""', 'a "bc"'),
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("'\'ab\' c'", "'ab' c"),
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]
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for value, output in items:
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self.assertEqual(text.unescape_string_literal(value), output)
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self.assertEqual(text.unescape_string_literal(lazystr(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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self.assertEqual(text.get_valid_filename(lazystr(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() 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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def test_format_lazy(self):
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self.assertEqual('django/test', format_lazy('{}/{}', 'django', lazystr('test')))
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self.assertEqual('django/test', format_lazy('{0}/{1}', *('django', 'test')))
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self.assertEqual('django/test', format_lazy('{a}/{b}', **{'a': 'django', 'b': 'test'}))
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self.assertEqual('django/test', format_lazy('{a[0]}/{a[1]}', a=('django', 'test')))
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t = {}
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s = format_lazy('{0[a]}-{p[a]}', t, p=t)
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t['a'] = lazystr('django')
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self.assertEqual('django-django', s)
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t['a'] = 'update'
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self.assertEqual('update-update', s)
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# The format string can be lazy. (string comes from contrib.admin)
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s = format_lazy(
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gettext_lazy("Added {name} \"{object}\"."),
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name='article', object='My first try',
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)
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with override('fr'):
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self.assertEqual('Ajout de article «\xa0My first try\xa0».', s)
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