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9aaeec337e
Added format_lazy function to django.utils.text module. Useful when dealing with relative complex lazy string concatenations (e.g. in urls.py when translating urls in regular expressions).
250 lines
11 KiB
Python
250 lines
11 KiB
Python
# -*- coding: utf-8 -*-
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from __future__ import unicode_literals
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import json
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from django.test import SimpleTestCase
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from django.utils import six, text
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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 override, ugettext_lazy
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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.', truncator.chars(100)),
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self.assertEqual('The quick brown fox ...', truncator.chars(23)),
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self.assertEqual('The quick brown fo.....', 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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# Ensure that lazy strings are handled correctly
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self.assertEqual(text.Truncator(lazystr('The quick brown fox')).chars(12), '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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# Ensure that 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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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_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_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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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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self.assertEqual(text.unescape_entities(lazystr(value)), output)
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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('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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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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ugettext_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('article «\xa0My first try\xa0» ajouté.', s)
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