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  • Committer: Michael Ellerman
  • Date: 2006-05-31 08:44:29 UTC
  • mto: (1711.2.63 jam-integration)
  • mto: This revision was merged to the branch mainline in revision 1792.
  • Revision ID: michael@ellerman.id.au-20060531084429-35e5429abda9f560
Add optional location to ancestry and fix behaviour for checkouts.

This adds an optional location parameter to the ancestry command. It also
changes the behaviour of ancestry on checkouts such that if they have
been created with a subset of the branch history, only the subset is
shown by 'bzr ancestry'. Tests for all of that as well.

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bzrlib/tests/test_tuned_gzip.py
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# Copyright (C) 2006 Canonical Ltd
 
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# Copyright (C) 2006 by Canonical Ltd
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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"""Tests for tuned_gzip."""
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import zlib
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from bzrlib import tuned_gzip
 
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from bzrlib.tuned_gzip import *
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class FakeDecompress(object):
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    def decompress(self, buf):
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        """Return an empty string as though we are at eof."""
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        # note that the zlib module *overwrites* unused data
 
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        # note that the zlib module *overwrites* unused data 
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        # on writes after EOF.
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        self.unused_data = buf
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        return ''
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    def test__read_short_remainder(self):
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        # a _read call at the end of a compressed hunk should
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        # read more bytes if there is less than 8 bytes (the
 
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        # read more bytes if there is less than 8 bytes (the 
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        # gzip trailer) unread.
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        stream = StringIO('\0\0\0\0\0\0\0\0')
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        myfile = tuned_gzip.GzipFile(fileobj=stream)
 
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        myfile = GzipFile(fileobj=stream)
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        # disable the _new_member check, we are microtesting.
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        myfile._new_member = False
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        myfile.crc = zlib.crc32('')
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        self.assertEqual('', stream.read())
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        # and it should be new member time in the stream.
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        self.failUnless(myfile._new_member)
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class TestToGzip(TestCase):
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    def assertToGzip(self, chunks):
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        bytes = ''.join(chunks)
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        gzfromchunks = tuned_gzip.chunks_to_gzip(chunks)
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        gzfrombytes = tuned_gzip.bytes_to_gzip(bytes)
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        self.assertEqual(gzfrombytes, gzfromchunks)
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        decoded = tuned_gzip.GzipFile(fileobj=StringIO(gzfromchunks)).read()
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        self.assertEqual(bytes, decoded)
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    def test_single_chunk(self):
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        self.assertToGzip(['a modest chunk\nwith some various\nbits\n'])
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    def test_simple_text(self):
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        self.assertToGzip(['some\n', 'strings\n', 'to\n', 'process\n'])
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    def test_large_chunks(self):
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        self.assertToGzip(['a large string\n'*1024])
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        self.assertToGzip(['a large string\n']*1024)
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    def test_enormous_chunks(self):
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        self.assertToGzip(['a large string\n'*1024*256])
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        self.assertToGzip(['a large string\n']*1024*256)