~bzr-pqm/bzr/bzr.dev : contents of bzrlib/tests/test_cache

~bzr-pqm/bzr/bzr.dev : (revision 6453)

# 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'))

1911.2.3 by John Arbash Meinel Moving everything into a new location so that we can cache more than just revision ids	1	# Copyright (C) 2006 Canonical Ltd
	2	#
	3	# This program is free software; you can redistribute it and/or modify
	4	# it under the terms of the GNU General Public License as published by
	5	# the Free Software Foundation; either version 2 of the License, or
	6	# (at your option) any later version.
	7	#
	8	# This program is distributed in the hope that it will be useful,
	9	# but WITHOUT ANY WARRANTY; without even the implied warranty of
	10	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	11	# GNU General Public License for more details.
	12	#
	13	# You should have received a copy of the GNU General Public License
	14	# along with this program; if not, write to the Free Software
4183.7.1 by Sabin Iacob update FSF mailing address	15	# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
1911.2.3 by John Arbash Meinel Moving everything into a new location so that we can cache more than just revision ids	16
	17	"""Tests for utf8 caching."""
	18
	19	from bzrlib import (
	20	cache_utf8,
	21	)
	22	from bzrlib.tests import TestCase
	23
	24
1911.2.5 by John Arbash Meinel Update cache tests, add a function to do something like intern() only for unicode objects	25	class TestEncodeCache(TestCase):
3943.8.1 by Marius Kruger remove all trailing whitespace from bzr source	26
1911.2.3 by John Arbash Meinel Moving everything into a new location so that we can cache more than just revision ids	27	def setUp(self):
1911.2.5 by John Arbash Meinel Update cache tests, add a function to do something like intern() only for unicode objects	28	super(TestEncodeCache, self).setUp()
1911.2.3 by John Arbash Meinel Moving everything into a new location so that we can cache more than just revision ids	29	cache_utf8.clear_encoding_cache()
	30	self.addCleanup(cache_utf8.clear_encoding_cache)
	31
1911.2.5 by John Arbash Meinel Update cache tests, add a function to do something like intern() only for unicode objects	32	def check_encode(self, rev_id):
1911.2.3 by John Arbash Meinel Moving everything into a new location so that we can cache more than just revision ids	33	rev_id_utf8 = rev_id.encode('utf-8')
5784.1.1 by Martin Pool Stop using failIf, failUnless, etc	34	self.assertFalse(rev_id in cache_utf8._unicode_to_utf8_map)
5784.1.1 by Martin Pool Stop using failIf, failUnless, etc	35	self.assertFalse(rev_id_utf8 in cache_utf8._utf8_to_unicode_map)
1911.2.3 by John Arbash Meinel Moving everything into a new location so that we can cache more than just revision ids	36
	37	# After a single encode, the mapping should exist for
	38	# both directions
	39	self.assertEqual(rev_id_utf8, cache_utf8.encode(rev_id))
5784.1.1 by Martin Pool Stop using failIf, failUnless, etc	40	self.assertTrue(rev_id in cache_utf8._unicode_to_utf8_map)
5784.1.1 by Martin Pool Stop using failIf, failUnless, etc	41	self.assertTrue(rev_id_utf8 in cache_utf8._utf8_to_unicode_map)
1911.2.3 by John Arbash Meinel Moving everything into a new location so that we can cache more than just revision ids	42
	43	self.assertEqual(rev_id, cache_utf8.decode(rev_id_utf8))
	44
	45	cache_utf8.clear_encoding_cache()
5784.1.1 by Martin Pool Stop using failIf, failUnless, etc	46	self.assertFalse(rev_id in cache_utf8._unicode_to_utf8_map)
5784.1.1 by Martin Pool Stop using failIf, failUnless, etc	47	self.assertFalse(rev_id_utf8 in cache_utf8._utf8_to_unicode_map)
1911.2.3 by John Arbash Meinel Moving everything into a new location so that we can cache more than just revision ids	48
1911.2.5 by John Arbash Meinel Update cache tests, add a function to do something like intern() only for unicode objects	49	def check_decode(self, rev_id):
	50	rev_id_utf8 = rev_id.encode('utf-8')
5784.1.1 by Martin Pool Stop using failIf, failUnless, etc	51	self.assertFalse(rev_id in cache_utf8._unicode_to_utf8_map)
5784.1.1 by Martin Pool Stop using failIf, failUnless, etc	52	self.assertFalse(rev_id_utf8 in cache_utf8._utf8_to_unicode_map)
1911.2.5 by John Arbash Meinel Update cache tests, add a function to do something like intern() only for unicode objects	53
	54	# After a single decode, the mapping should exist for
	55	# both directions
	56	self.assertEqual(rev_id, cache_utf8.decode(rev_id_utf8))
5784.1.1 by Martin Pool Stop using failIf, failUnless, etc	57	self.assertTrue(rev_id in cache_utf8._unicode_to_utf8_map)
5784.1.1 by Martin Pool Stop using failIf, failUnless, etc	58	self.assertTrue(rev_id_utf8 in cache_utf8._utf8_to_unicode_map)
1911.2.5 by John Arbash Meinel Update cache tests, add a function to do something like intern() only for unicode objects	59
	60	self.assertEqual(rev_id_utf8, cache_utf8.encode(rev_id))
	61	cache_utf8.clear_encoding_cache()
	62
5784.1.1 by Martin Pool Stop using failIf, failUnless, etc	63	self.assertFalse(rev_id in cache_utf8._unicode_to_utf8_map)
5784.1.1 by Martin Pool Stop using failIf, failUnless, etc	64	self.assertFalse(rev_id_utf8 in cache_utf8._utf8_to_unicode_map)
1911.2.5 by John Arbash Meinel Update cache tests, add a function to do something like intern() only for unicode objects	65
1911.2.3 by John Arbash Meinel Moving everything into a new location so that we can cache more than just revision ids	66	def test_ascii(self):
1911.2.5 by John Arbash Meinel Update cache tests, add a function to do something like intern() only for unicode objects	67	self.check_decode(u'all_ascii_characters123123123')
	68	self.check_encode(u'all_ascii_characters123123123')
1911.2.3 by John Arbash Meinel Moving everything into a new location so that we can cache more than just revision ids	69
	70	def test_unicode(self):
1911.2.5 by John Arbash Meinel Update cache tests, add a function to do something like intern() only for unicode objects	71	self.check_encode(u'some_\xb5_unicode_\xe5_chars')
	72	self.check_decode(u'some_\xb5_unicode_\xe5_chars')
	73
	74	def test_cached_unicode(self):
	75	x = u'\xb5yy' + u'\xe5zz'
	76	y = u'\xb5yy' + u'\xe5zz'
5784.1.1 by Martin Pool Stop using failIf, failUnless, etc	77	self.assertFalse(x is y)
1911.2.5 by John Arbash Meinel Update cache tests, add a function to do something like intern() only for unicode objects	78	xp = cache_utf8.get_cached_unicode(x)
	79	yp = cache_utf8.get_cached_unicode(y)
	80
2249.5.3 by John Arbash Meinel Add get_cached_ascii for dealing with how cElementTree handles ascii strings	81	self.assertIs(xp, x)
	82	self.assertIs(xp, yp)
1911.2.3 by John Arbash Meinel Moving everything into a new location so that we can cache more than just revision ids	83
2249.5.2 by John Arbash Meinel Add a get_cached_utf8, which will ensure it is really utf8, and cache the strings	84	def test_cached_utf8(self):
	85	x = u'\xb5yy\xe5zz'.encode('utf8')
	86	y = u'\xb5yy\xe5zz'.encode('utf8')
5784.1.1 by Martin Pool Stop using failIf, failUnless, etc	87	self.assertFalse(x is y)
2249.5.2 by John Arbash Meinel Add a get_cached_utf8, which will ensure it is really utf8, and cache the strings	88	xp = cache_utf8.get_cached_utf8(x)
	89	yp = cache_utf8.get_cached_utf8(y)
	90
2249.5.3 by John Arbash Meinel Add get_cached_ascii for dealing with how cElementTree handles ascii strings	91	self.assertIs(xp, x)
	92	self.assertIs(xp, yp)
	93
	94	def test_cached_ascii(self):
	95	x = '%s %s' % ('simple', 'text')
	96	y = '%s %s' % ('simple', 'text')
5784.1.1 by Martin Pool Stop using failIf, failUnless, etc	97	self.assertFalse(x is y)
2249.5.3 by John Arbash Meinel Add get_cached_ascii for dealing with how cElementTree handles ascii strings	98	xp = cache_utf8.get_cached_ascii(x)
	99	yp = cache_utf8.get_cached_ascii(y)
	100
	101	self.assertIs(xp, x)
	102	self.assertIs(xp, yp)
	103
	104	# after caching, encode and decode should also return the right
	105	# objects.
	106	uni_x = cache_utf8.decode(x)
	107	self.assertEqual(u'simple text', uni_x)
	108	self.assertIsInstance(uni_x, unicode)
	109
	110	utf8_x = cache_utf8.encode(uni_x)
	111	self.assertIs(utf8_x, x)
2255.7.95 by Robert Collins Add convenience utf8 decode routine for handling strings that might be None	112
	113	def test_decode_with_None(self):
2360.1.6 by John Arbash Meinel Change utf8_decode_with_None to return what we care about.	114	self.assertEqual(None, cache_utf8._utf8_decode_with_None(None))
	115	self.assertEqual(u'foo', cache_utf8._utf8_decode_with_None('foo'))
	116	self.assertEqual(u'f\xb5',
	117	cache_utf8._utf8_decode_with_None('f\xc2\xb5'))