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# Copyright (C) 2006 Canonical Ltd
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
"""Tests for utf8 caching."""
from bzrlib import (
cache_utf8,
)
from bzrlib.tests import TestCase
class TestEncodeCache(TestCase):
def setUp(self):
super(TestEncodeCache, self).setUp()
cache_utf8.clear_encoding_cache()
self.addCleanup(cache_utf8.clear_encoding_cache)
def check_encode(self, rev_id):
rev_id_utf8 = rev_id.encode('utf-8')
self.assertFalse(rev_id in cache_utf8._unicode_to_utf8_map)
self.assertFalse(rev_id_utf8 in cache_utf8._utf8_to_unicode_map)
# After a single encode, the mapping should exist for
# both directions
self.assertEqual(rev_id_utf8, cache_utf8.encode(rev_id))
self.assertTrue(rev_id in cache_utf8._unicode_to_utf8_map)
self.assertTrue(rev_id_utf8 in cache_utf8._utf8_to_unicode_map)
self.assertEqual(rev_id, cache_utf8.decode(rev_id_utf8))
cache_utf8.clear_encoding_cache()
self.assertFalse(rev_id in cache_utf8._unicode_to_utf8_map)
self.assertFalse(rev_id_utf8 in cache_utf8._utf8_to_unicode_map)
def check_decode(self, rev_id):
rev_id_utf8 = rev_id.encode('utf-8')
self.assertFalse(rev_id in cache_utf8._unicode_to_utf8_map)
self.assertFalse(rev_id_utf8 in cache_utf8._utf8_to_unicode_map)
# After a single decode, the mapping should exist for
# both directions
self.assertEqual(rev_id, cache_utf8.decode(rev_id_utf8))
self.assertTrue(rev_id in cache_utf8._unicode_to_utf8_map)
self.assertTrue(rev_id_utf8 in cache_utf8._utf8_to_unicode_map)
self.assertEqual(rev_id_utf8, cache_utf8.encode(rev_id))
cache_utf8.clear_encoding_cache()
self.assertFalse(rev_id in cache_utf8._unicode_to_utf8_map)
self.assertFalse(rev_id_utf8 in cache_utf8._utf8_to_unicode_map)
def test_ascii(self):
self.check_decode(u'all_ascii_characters123123123')
self.check_encode(u'all_ascii_characters123123123')
def test_unicode(self):
self.check_encode(u'some_\xb5_unicode_\xe5_chars')
self.check_decode(u'some_\xb5_unicode_\xe5_chars')
def test_cached_unicode(self):
x = u'\xb5yy' + u'\xe5zz'
y = u'\xb5yy' + u'\xe5zz'
self.assertFalse(x is y)
xp = cache_utf8.get_cached_unicode(x)
yp = cache_utf8.get_cached_unicode(y)
self.assertIs(xp, x)
self.assertIs(xp, yp)
def test_cached_utf8(self):
x = u'\xb5yy\xe5zz'.encode('utf8')
y = u'\xb5yy\xe5zz'.encode('utf8')
self.assertFalse(x is y)
xp = cache_utf8.get_cached_utf8(x)
yp = cache_utf8.get_cached_utf8(y)
self.assertIs(xp, x)
self.assertIs(xp, yp)
def test_cached_ascii(self):
x = '%s %s' % ('simple', 'text')
y = '%s %s' % ('simple', 'text')
self.assertFalse(x is y)
xp = cache_utf8.get_cached_ascii(x)
yp = cache_utf8.get_cached_ascii(y)
self.assertIs(xp, x)
self.assertIs(xp, yp)
# after caching, encode and decode should also return the right
# objects.
uni_x = cache_utf8.decode(x)
self.assertEqual(u'simple text', uni_x)
self.assertIsInstance(uni_x, unicode)
utf8_x = cache_utf8.encode(uni_x)
self.assertIs(utf8_x, x)
def test_decode_with_None(self):
self.assertEqual(None, cache_utf8._utf8_decode_with_None(None))
self.assertEqual(u'foo', cache_utf8._utf8_decode_with_None('foo'))
self.assertEqual(u'f\xb5',
cache_utf8._utf8_decode_with_None('f\xc2\xb5'))
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