# -*- coding: utf-8 -*-
import unittest
from django.utils import text
class TestUtilsText(unittest.TestCase):
def test_truncate_chars(self):
truncator = text.Truncator(
u'The quick brown fox jumped over the lazy dog.'
)
self.assertEqual(u'The quick brown fox jumped over the lazy dog.',
truncator.chars(100)),
self.assertEqual(u'The quick brown fox ...',
truncator.chars(23)),
self.assertEqual(u'The quick brown fo.....',
truncator.chars(23, '.....')),
# Ensure that we normalize our unicode data first
nfc = text.Truncator(u'o\xfco\xfco\xfco\xfc')
nfd = text.Truncator(u'ou\u0308ou\u0308ou\u0308ou\u0308')
self.assertEqual(u'oüoüoüoü', nfc.chars(8))
self.assertEqual(u'oüoüoüoü', nfd.chars(8))
self.assertEqual(u'oü...', nfc.chars(5))
self.assertEqual(u'oü...', nfd.chars(5))
# Ensure the final length is calculated correctly when there are
# combining characters with no precomposed form, and that combining
# characters are not split up.
truncator = text.Truncator(u'-B\u030AB\u030A----8')
self.assertEqual(u'-B\u030A...', truncator.chars(5))
self.assertEqual(u'-B\u030AB\u030A-...', truncator.chars(7))
self.assertEqual(u'-B\u030AB\u030A----8', truncator.chars(8))
# Ensure the length of the end text is correctly calculated when it
# contains combining characters with no precomposed form.
truncator = text.Truncator(u'-----')
self.assertEqual(u'---B\u030A', truncator.chars(4, u'B\u030A'))
self.assertEqual(u'-----', truncator.chars(5, u'B\u030A'))
# Make a best effort to shorten to the desired length, but requesting
# a length shorter than the ellipsis shouldn't break
self.assertEqual(u'...', text.Truncator(u'asdf').chars(1))
def test_truncate_words(self):
truncator = text.Truncator(u'The quick brown fox jumped over the lazy '
'dog.')
self.assertEqual(u'The quick brown fox jumped over the lazy dog.',
truncator.words(10))
self.assertEqual(u'The quick brown fox...', truncator.words(4))
self.assertEqual(u'The quick brown fox[snip]',
truncator.words(4, '[snip]'))
def test_truncate_html_words(self):
truncator = text.Truncator('The quick brown fox jumped '
'over the lazy dog.
')
self.assertEqual(u'The quick brown fox jumped over the '
'lazy dog.
', truncator.words(10, html=True))
self.assertEqual(u'The quick brown fox...'
'
', truncator.words(4, html=True))
self.assertEqual(u'The quick brown fox....'
'
', truncator.words(4, '....', html=True))
self.assertEqual(u'The quick brown fox'
'
', truncator.words(4, '', html=True))
def test_old_truncate_words(self):
self.assertEqual(u'The quick brown fox jumped over the lazy dog.',
text.truncate_words(u'The quick brown fox jumped over the lazy dog.', 10))
self.assertEqual(u'The quick brown fox ...',
text.truncate_words('The quick brown fox jumped over the lazy dog.', 4))
self.assertEqual(u'The quick brown fox ....',
text.truncate_words('The quick brown fox jumped over the lazy dog.', 4, '....'))
def test_old_truncate_html_words(self):
self.assertEqual(u'The quick brown fox jumped over the lazy dog.
',
text.truncate_html_words('The quick brown fox jumped over the lazy dog.
', 10))
self.assertEqual(u'The quick brown fox ...
',
text.truncate_html_words('The quick brown fox jumped over the lazy dog.
', 4))
self.assertEqual(u'The quick brown fox ....
',
text.truncate_html_words('The quick brown fox jumped over the lazy dog.
', 4, '....'))
self.assertEqual(u'The quick brown fox
',
text.truncate_html_words('The quick brown fox jumped over the lazy dog.
', 4, None))
def test_wrap(self):
digits = '1234 67 9'
self.assertEqual(text.wrap(digits, 100), u'1234 67 9')
self.assertEqual(text.wrap(digits, 9), u'1234 67 9')
self.assertEqual(text.wrap(digits, 8), u'1234 67\n9')
self.assertEqual(text.wrap('short\na long line', 7),
u'short\na long\nline')
self.assertEqual(text.wrap('do-not-break-long-words please? ok', 8),
u'do-not-break-long-words\nplease?\nok')
long_word = 'l%sng' % ('o' * 20)
self.assertEqual(text.wrap(long_word, 20), long_word)
self.assertEqual(text.wrap('a %s word' % long_word, 10),
u'a\n%s\nword' % long_word)