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Viewing changes to bzrlib/tests/test_cache_utf8.py

  • Committer: Marius Kruger
  • Date: 2010-07-10 21:28:56 UTC
  • mto: (5384.1.1 integration)
  • mto: This revision was merged to the branch mainline in revision 5385.
  • Revision ID: marius.kruger@enerweb.co.za-20100710212856-uq4ji3go0u5se7hx
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bzrlib/tests/test_cache_utf8.py
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"""Tests for utf8 caching."""
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from .. import (
 
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from bzrlib import (
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    cache_utf8,
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    )
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from ..sixish import text_type
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from . import TestCase
 
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from bzrlib.tests import TestCase
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class TestEncodeCache(TestCase):
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    def check_encode(self, rev_id):
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        rev_id_utf8 = rev_id.encode('utf-8')
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        self.assertFalse(rev_id in cache_utf8._unicode_to_utf8_map)
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        self.assertFalse(rev_id_utf8 in cache_utf8._utf8_to_unicode_map)
 
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        self.failIf(rev_id in cache_utf8._unicode_to_utf8_map)
 
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        self.failIf(rev_id_utf8 in cache_utf8._utf8_to_unicode_map)
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        # After a single encode, the mapping should exist for
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        # both directions
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        self.assertEqual(rev_id_utf8, cache_utf8.encode(rev_id))
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        self.assertTrue(rev_id in cache_utf8._unicode_to_utf8_map)
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        self.assertTrue(rev_id_utf8 in cache_utf8._utf8_to_unicode_map)
 
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        self.failUnless(rev_id in cache_utf8._unicode_to_utf8_map)
 
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        self.failUnless(rev_id_utf8 in cache_utf8._utf8_to_unicode_map)
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        self.assertEqual(rev_id, cache_utf8.decode(rev_id_utf8))
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        cache_utf8.clear_encoding_cache()
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        self.assertFalse(rev_id in cache_utf8._unicode_to_utf8_map)
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        self.assertFalse(rev_id_utf8 in cache_utf8._utf8_to_unicode_map)
 
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        self.failIf(rev_id in cache_utf8._unicode_to_utf8_map)
 
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        self.failIf(rev_id_utf8 in cache_utf8._utf8_to_unicode_map)
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    def check_decode(self, rev_id):
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        rev_id_utf8 = rev_id.encode('utf-8')
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        self.assertFalse(rev_id in cache_utf8._unicode_to_utf8_map)
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        self.assertFalse(rev_id_utf8 in cache_utf8._utf8_to_unicode_map)
 
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        self.failIf(rev_id in cache_utf8._unicode_to_utf8_map)
 
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        self.failIf(rev_id_utf8 in cache_utf8._utf8_to_unicode_map)
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        # After a single decode, the mapping should exist for
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        # both directions
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        self.assertEqual(rev_id, cache_utf8.decode(rev_id_utf8))
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        self.assertTrue(rev_id in cache_utf8._unicode_to_utf8_map)
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        self.assertTrue(rev_id_utf8 in cache_utf8._utf8_to_unicode_map)
 
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        self.failUnless(rev_id in cache_utf8._unicode_to_utf8_map)
 
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        self.failUnless(rev_id_utf8 in cache_utf8._utf8_to_unicode_map)
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        self.assertEqual(rev_id_utf8, cache_utf8.encode(rev_id))
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        cache_utf8.clear_encoding_cache()
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        self.assertFalse(rev_id in cache_utf8._unicode_to_utf8_map)
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        self.assertFalse(rev_id_utf8 in cache_utf8._utf8_to_unicode_map)
 
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        self.failIf(rev_id in cache_utf8._unicode_to_utf8_map)
 
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        self.failIf(rev_id_utf8 in cache_utf8._utf8_to_unicode_map)
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    def test_ascii(self):
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        self.check_decode(u'all_ascii_characters123123123')
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        self.check_decode(u'some_\xb5_unicode_\xe5_chars')
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    def test_cached_unicode(self):
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        # Note that this is intentionally split, to prevent Python from
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        # assigning x and y to the same object
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        z = u'\xe5zz'
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        x = u'\xb5yy' + z
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        y = u'\xb5yy' + z
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        self.assertIsNot(x, y)
 
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        x = u'\xb5yy' + u'\xe5zz'
 
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        y = u'\xb5yy' + u'\xe5zz'
 
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        self.failIf(x is y)
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        xp = cache_utf8.get_cached_unicode(x)
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        yp = cache_utf8.get_cached_unicode(y)
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    def test_cached_utf8(self):
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        x = u'\xb5yy\xe5zz'.encode('utf8')
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        y = u'\xb5yy\xe5zz'.encode('utf8')
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        self.assertFalse(x is y)
 
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        self.failIf(x is y)
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        xp = cache_utf8.get_cached_utf8(x)
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        yp = cache_utf8.get_cached_utf8(y)
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        self.assertIs(xp, yp)
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    def test_cached_ascii(self):
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        x = b'%s %s' % (b'simple', b'text')
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        y = b'%s %s' % (b'simple', b'text')
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        self.assertIsNot(x, y)
 
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        x = '%s %s' % ('simple', 'text')
 
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        y = '%s %s' % ('simple', 'text')
 
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        self.failIf(x is y)
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        xp = cache_utf8.get_cached_ascii(x)
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        yp = cache_utf8.get_cached_ascii(y)
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        # objects.
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        uni_x = cache_utf8.decode(x)
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        self.assertEqual(u'simple text', uni_x)
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        self.assertIsInstance(uni_x, text_type)
 
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        self.assertIsInstance(uni_x, unicode)
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        utf8_x = cache_utf8.encode(uni_x)
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        self.assertIs(utf8_x, x)
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    def test_decode_with_None(self):
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        self.assertEqual(None, cache_utf8._utf8_decode_with_None(None))
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        self.assertEqual(u'foo', cache_utf8._utf8_decode_with_None(b'foo'))
 
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        self.assertEqual(u'foo', cache_utf8._utf8_decode_with_None('foo'))
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        self.assertEqual(u'f\xb5',
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                         cache_utf8._utf8_decode_with_None(b'f\xc2\xb5'))
 
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                         cache_utf8._utf8_decode_with_None('f\xc2\xb5'))