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- Committer: Martin Pool
- Date: 2006-03-10 06:29:53 UTC
- mfrom: (1608 +trunk)
- mto: This revision was merged to the branch mainline in revision 1611.
- Revision ID: mbp@sourcefrog.net-20060310062953-bc1c7ade75c89a7a
[merge] bzr.dev; pycurl not updated for readv yet
- files added:
- bzrlib/inter.py
- bzrlib/store/revision
- bzrlib/store/versioned
- bzrlib/tests/interversionedfile_implementations
- bzrlib/tests/revisionstore_implementations
- files removed:
- bzrlib/tests/test_reweave.py
- files renamed:
- bzrlib/store/weave.py => bzrlib/store/versioned/__init__.py
- files modified:
- BRANCH.TODO
added
removed
bzrlib/tests/test_versionedfile.py
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# Copyright (C) 2005 by Canonical Ltd
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#
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# Authors:
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# Johan Rydberg <jrydberg@gnu.org>
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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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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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import bzrlib
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import bzrlib.errors as errors
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from bzrlib.errors import (
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RevisionNotPresent,
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RevisionAlreadyPresent,
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WeaveParentMismatch
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)
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from bzrlib.knit import KnitVersionedFile, \
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KnitAnnotateFactory
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from bzrlib.tests import TestCaseWithTransport
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from bzrlib.trace import mutter
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from bzrlib.transport import get_transport
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from bzrlib.transport.memory import MemoryTransport
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import bzrlib.versionedfile as versionedfile
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from bzrlib.weave import WeaveFile
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from bzrlib.weavefile import read_weave
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38
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class VersionedFileTestMixIn(object):
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"""A mixin test class for testing VersionedFiles.
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This is not an adaptor-style test at this point because
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theres no dynamic substitution of versioned file implementations,
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they are strictly controlled by their owning repositories.
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"""
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def test_add(self):
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f = self.get_file()
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f.add_lines('r0', [], ['a\n', 'b\n'])
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f.add_lines('r1', ['r0'], ['b\n', 'c\n'])
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def verify_file(f):
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versions = f.versions()
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self.assertTrue('r0' in versions)
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self.assertTrue('r1' in versions)
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self.assertEquals(f.get_lines('r0'), ['a\n', 'b\n'])
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self.assertEquals(f.get_text('r0'), 'a\nb\n')
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self.assertEquals(f.get_lines('r1'), ['b\n', 'c\n'])
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self.assertEqual(2, len(f))
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self.assertEqual(2, f.num_versions())
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self.assertRaises(RevisionNotPresent,
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f.add_lines, 'r2', ['foo'], [])
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self.assertRaises(RevisionAlreadyPresent,
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f.add_lines, 'r1', [], [])
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verify_file(f)
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f = self.reopen_file()
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verify_file(f)
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def test_ancestry(self):
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f = self.get_file()
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self.assertEqual([], f.get_ancestry([]))
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f.add_lines('r0', [], ['a\n', 'b\n'])
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f.add_lines('r1', ['r0'], ['b\n', 'c\n'])
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f.add_lines('r2', ['r0'], ['b\n', 'c\n'])
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f.add_lines('r3', ['r2'], ['b\n', 'c\n'])
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f.add_lines('rM', ['r1', 'r2'], ['b\n', 'c\n'])
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self.assertEqual([], f.get_ancestry([]))
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versions = f.get_ancestry(['rM'])
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# there are some possibilities:
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# r0 r1 r2 rM r3
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# r0 r1 r2 r3 rM
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# etc
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# so we check indexes
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r0 = versions.index('r0')
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r1 = versions.index('r1')
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r2 = versions.index('r2')
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self.assertFalse('r3' in versions)
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rM = versions.index('rM')
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self.assertTrue(r0 < r1)
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self.assertTrue(r0 < r2)
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self.assertTrue(r1 < rM)
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self.assertTrue(r2 < rM)
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self.assertRaises(RevisionNotPresent,
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f.get_ancestry, ['rM', 'rX'])
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def test_mutate_after_finish(self):
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f = self.get_file()
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f.transaction_finished()
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self.assertRaises(errors.OutSideTransaction, f.add_lines, '', [], [])
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self.assertRaises(errors.OutSideTransaction, f.add_lines_with_ghosts, '', [], [])
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self.assertRaises(errors.OutSideTransaction, f.fix_parents, '', [])
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self.assertRaises(errors.OutSideTransaction, f.join, '')
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self.assertRaises(errors.OutSideTransaction, f.clone_text, 'base', 'bar', ['foo'])
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def test_clear_cache(self):
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f = self.get_file()
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# on a new file it should not error
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f.clear_cache()
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# and after adding content, doing a clear_cache and a get should work.
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f.add_lines('0', [], ['a'])
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f.clear_cache()
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self.assertEqual(['a'], f.get_lines('0'))
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def test_clone_text(self):
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f = self.get_file()
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f.add_lines('r0', [], ['a\n', 'b\n'])
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f.clone_text('r1', 'r0', ['r0'])
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def verify_file(f):
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self.assertEquals(f.get_lines('r1'), f.get_lines('r0'))
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self.assertEquals(f.get_lines('r1'), ['a\n', 'b\n'])
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self.assertEquals(f.get_parents('r1'), ['r0'])
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self.assertRaises(RevisionNotPresent,
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f.clone_text, 'r2', 'rX', [])
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self.assertRaises(RevisionAlreadyPresent,
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f.clone_text, 'r1', 'r0', [])
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verify_file(f)
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verify_file(self.reopen_file())
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def test_create_empty(self):
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f = self.get_file()
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f.add_lines('0', [], ['a\n'])
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new_f = f.create_empty('t', MemoryTransport())
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# smoke test, specific types should check it is honoured correctly for
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# non type attributes
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self.assertEqual([], new_f.versions())
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self.assertTrue(isinstance(new_f, f.__class__))
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def test_copy_to(self):
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f = self.get_file()
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f.add_lines('0', [], ['a\n'])
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t = MemoryTransport()
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f.copy_to('foo', t)
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for suffix in f.__class__.get_suffixes():
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self.assertTrue(t.has('foo' + suffix))
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def test_get_suffixes(self):
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f = self.get_file()
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# should be the same
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self.assertEqual(f.__class__.get_suffixes(), f.__class__.get_suffixes())
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# and should be a list
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self.assertTrue(isinstance(f.__class__.get_suffixes(), list))
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def test_get_graph(self):
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f = self.get_file()
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f.add_lines('v1', [], ['hello\n'])
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f.add_lines('v2', ['v1'], ['hello\n', 'world\n'])
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f.add_lines('v3', ['v2'], ['hello\n', 'cruel\n', 'world\n'])
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self.assertEqual({'v1': [],
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'v2': ['v1'],
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'v3': ['v2']},
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f.get_graph())
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def test_get_parents(self):
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f = self.get_file()
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f.add_lines('r0', [], ['a\n', 'b\n'])
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f.add_lines('r1', [], ['a\n', 'b\n'])
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f.add_lines('r2', [], ['a\n', 'b\n'])
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f.add_lines('r3', [], ['a\n', 'b\n'])
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f.add_lines('m', ['r0', 'r1', 'r2', 'r3'], ['a\n', 'b\n'])
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self.assertEquals(f.get_parents('m'), ['r0', 'r1', 'r2', 'r3'])
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self.assertRaises(RevisionNotPresent,
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f.get_parents, 'y')
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def test_annotate(self):
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f = self.get_file()
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f.add_lines('r0', [], ['a\n', 'b\n'])
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f.add_lines('r1', ['r0'], ['c\n', 'b\n'])
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origins = f.annotate('r1')
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self.assertEquals(origins[0][0], 'r1')
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self.assertEquals(origins[1][0], 'r0')
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self.assertRaises(RevisionNotPresent,
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f.annotate, 'foo')
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def test_walk(self):
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# tests that walk returns all the inclusions for the requested
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# revisions as well as the revisions changes themselves.
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f = self.get_file('1')
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f.add_lines('r0', [], ['a\n', 'b\n'])
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f.add_lines('r1', ['r0'], ['c\n', 'b\n'])
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f.add_lines('rX', ['r1'], ['d\n', 'b\n'])
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f.add_lines('rY', ['r1'], ['c\n', 'e\n'])
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lines = {}
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for lineno, insert, dset, text in f.walk(['rX', 'rY']):
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lines[text] = (insert, dset)
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self.assertTrue(lines['a\n'], ('r0', set(['r1'])))
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self.assertTrue(lines['b\n'], ('r0', set(['rY'])))
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self.assertTrue(lines['c\n'], ('r1', set(['rX'])))
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self.assertTrue(lines['d\n'], ('rX', set([])))
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self.assertTrue(lines['e\n'], ('rY', set([])))
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def test_detection(self):
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# Test weaves detect corruption.
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#
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# Weaves contain a checksum of their texts.
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# When a text is extracted, this checksum should be
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# verified.
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w = self.get_file_corrupted_text()
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self.assertEqual('hello\n', w.get_text('v1'))
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self.assertRaises(errors.WeaveInvalidChecksum, w.get_text, 'v2')
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self.assertRaises(errors.WeaveInvalidChecksum, w.get_lines, 'v2')
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self.assertRaises(errors.WeaveInvalidChecksum, w.check)
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w = self.get_file_corrupted_checksum()
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self.assertEqual('hello\n', w.get_text('v1'))
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self.assertRaises(errors.WeaveInvalidChecksum, w.get_text, 'v2')
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self.assertRaises(errors.WeaveInvalidChecksum, w.get_lines, 'v2')
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self.assertRaises(errors.WeaveInvalidChecksum, w.check)
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def get_file_corrupted_text(self):
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"""Return a versioned file with corrupt text but valid metadata."""
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raise NotImplementedError(self.get_file_corrupted_text)
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def reopen_file(self, name='foo'):
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"""Open the versioned file from disk again."""
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raise NotImplementedError(self.reopen_file)
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def test_iter_lines_added_or_present_in_versions(self):
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# test that we get at least an equalset of the lines added by
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# versions in the weave
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# the ordering here is to make a tree so that dumb searches have
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# more changes to muck up.
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vf = self.get_file()
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# add a base to get included
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vf.add_lines('base', [], ['base\n'])
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# add a ancestor to be included on one side
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vf.add_lines('lancestor', [], ['lancestor\n'])
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# add a ancestor to be included on the other side
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vf.add_lines('rancestor', ['base'], ['rancestor\n'])
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# add a child of rancestor with no eofile-nl
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vf.add_lines('child', ['rancestor'], ['base\n', 'child\n'])
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# add a child of lancestor and base to join the two roots
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vf.add_lines('otherchild',
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['lancestor', 'base'],
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['base\n', 'lancestor\n', 'otherchild\n'])
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def iter_with_versions(versions):
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# now we need to see what lines are returned, and how often.
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lines = {'base\n':0,
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'lancestor\n':0,
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'rancestor\n':0,
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'child\n':0,
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'otherchild\n':0,
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}
262
# iterate over the lines
263
for line in vf.iter_lines_added_or_present_in_versions(versions):
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lines[line] += 1
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return lines
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lines = iter_with_versions(['child', 'otherchild'])
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# we must see child and otherchild
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self.assertTrue(lines['child\n'] > 0)
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self.assertTrue(lines['otherchild\n'] > 0)
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# we dont care if we got more than that.
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# test all lines
273
lines = iter_with_versions(None)
274
# all lines must be seen at least once
275
self.assertTrue(lines['base\n'] > 0)
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self.assertTrue(lines['lancestor\n'] > 0)
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self.assertTrue(lines['rancestor\n'] > 0)
278
self.assertTrue(lines['child\n'] > 0)
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self.assertTrue(lines['otherchild\n'] > 0)
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281
def test_fix_parents(self):
282
# some versioned files allow incorrect parents to be corrected after
283
# insertion - this may not fix ancestry..
284
# if they do not supported, they just do not implement it.
285
# we test this as an interface test to ensure that those that *do*
286
# implementent it get it right.
287
vf = self.get_file()
288
vf.add_lines('notbase', [], [])
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vf.add_lines('base', [], [])
290
try:
291
vf.fix_parents('notbase', ['base'])
292
except NotImplementedError:
293
return
294
self.assertEqual(['base'], vf.get_parents('notbase'))
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# open again, check it stuck.
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vf = self.get_file()
297
self.assertEqual(['base'], vf.get_parents('notbase'))
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299
def test_fix_parents_with_ghosts(self):
300
# when fixing parents, ghosts that are listed should not be ghosts
301
# anymore.
302
vf = self.get_file()
303
304
try:
305
vf.add_lines_with_ghosts('notbase', ['base', 'stillghost'], [])
306
except NotImplementedError:
307
return
308
vf.add_lines('base', [], [])
309
vf.fix_parents('notbase', ['base', 'stillghost'])
310
self.assertEqual(['base'], vf.get_parents('notbase'))
311
# open again, check it stuck.
312
vf = self.get_file()
313
self.assertEqual(['base'], vf.get_parents('notbase'))
314
# and check the ghosts
315
self.assertEqual(['base', 'stillghost'],
316
vf.get_parents_with_ghosts('notbase'))
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318
def test_add_lines_with_ghosts(self):
319
# some versioned file formats allow lines to be added with parent
320
# information that is > than that in the format. Formats that do
321
# not support this need to raise NotImplementedError on the
322
# add_lines_with_ghosts api.
323
vf = self.get_file()
324
# add a revision with ghost parents
325
try:
326
vf.add_lines_with_ghosts(u'notbxbfse', [u'b\xbfse'], [])
327
except NotImplementedError:
328
# check the other ghost apis are also not implemented
329
self.assertRaises(NotImplementedError, vf.has_ghost, 'foo')
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self.assertRaises(NotImplementedError, vf.get_ancestry_with_ghosts, ['foo'])
331
self.assertRaises(NotImplementedError, vf.get_parents_with_ghosts, 'foo')
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self.assertRaises(NotImplementedError, vf.get_graph_with_ghosts)
333
return
334
# test key graph related apis: getncestry, _graph, get_parents
335
# has_version
336
# - these are ghost unaware and must not be reflect ghosts
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self.assertEqual([u'notbxbfse'], vf.get_ancestry(u'notbxbfse'))
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self.assertEqual([], vf.get_parents(u'notbxbfse'))
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self.assertEqual({u'notbxbfse':[]}, vf.get_graph())
340
self.assertFalse(vf.has_version(u'b\xbfse'))
341
# we have _with_ghost apis to give us ghost information.
342
self.assertEqual([u'b\xbfse', u'notbxbfse'], vf.get_ancestry_with_ghosts([u'notbxbfse']))
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self.assertEqual([u'b\xbfse'], vf.get_parents_with_ghosts(u'notbxbfse'))
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self.assertEqual({u'notbxbfse':[u'b\xbfse']}, vf.get_graph_with_ghosts())
345
self.assertTrue(vf.has_ghost(u'b\xbfse'))
346
# if we add something that is a ghost of another, it should correct the
347
# results of the prior apis
348
vf.add_lines(u'b\xbfse', [], [])
349
self.assertEqual([u'b\xbfse', u'notbxbfse'], vf.get_ancestry([u'notbxbfse']))
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self.assertEqual([u'b\xbfse'], vf.get_parents(u'notbxbfse'))
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self.assertEqual({u'b\xbfse':[],
352
u'notbxbfse':[u'b\xbfse'],
353
},
354
vf.get_graph())
355
self.assertTrue(vf.has_version(u'b\xbfse'))
356
# we have _with_ghost apis to give us ghost information.
357
self.assertEqual([u'b\xbfse', u'notbxbfse'], vf.get_ancestry_with_ghosts([u'notbxbfse']))
358
self.assertEqual([u'b\xbfse'], vf.get_parents_with_ghosts(u'notbxbfse'))
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self.assertEqual({u'b\xbfse':[],
360
u'notbxbfse':[u'b\xbfse'],
361
},
362
vf.get_graph_with_ghosts())
363
self.assertFalse(vf.has_ghost(u'b\xbfse'))
364
365
def test_add_lines_with_ghosts_after_normal_revs(self):
366
# some versioned file formats allow lines to be added with parent
367
# information that is > than that in the format. Formats that do
368
# not support this need to raise NotImplementedError on the
369
# add_lines_with_ghosts api.
370
vf = self.get_file()
371
# probe for ghost support
372
try:
373
vf.has_ghost('hoo')
374
except NotImplementedError:
375
return
376
vf.add_lines_with_ghosts('base', [], ['line\n', 'line_b\n'])
377
vf.add_lines_with_ghosts('references_ghost',
378
['base', 'a_ghost'],
379
['line\n', 'line_b\n', 'line_c\n'])
380
origins = vf.annotate('references_ghost')
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self.assertEquals(('base', 'line\n'), origins[0])
382
self.assertEquals(('base', 'line_b\n'), origins[1])
383
self.assertEquals(('references_ghost', 'line_c\n'), origins[2])
384
385
def test_readonly_mode(self):
386
transport = get_transport(self.get_url('.'))
387
factory = self.get_factory()
388
vf = factory('id', transport, 0777, create=True, access_mode='w')
389
vf = factory('id', transport, access_mode='r')
390
self.assertRaises(errors.ReadOnlyError, vf.add_lines, 'base', [], [])
391
self.assertRaises(errors.ReadOnlyError,
392
vf.add_lines_with_ghosts,
393
'base',
394
[],
395
[])
396
self.assertRaises(errors.ReadOnlyError, vf.fix_parents, 'base', [])
397
self.assertRaises(errors.ReadOnlyError, vf.join, 'base')
398
self.assertRaises(errors.ReadOnlyError, vf.clone_text, 'base', 'bar', ['foo'])
399
400
401
class TestWeave(TestCaseWithTransport, VersionedFileTestMixIn):
402
403
def get_file(self, name='foo'):
404
return WeaveFile(name, get_transport(self.get_url('.')), create=True)
405
406
def get_file_corrupted_text(self):
407
w = WeaveFile('foo', get_transport(self.get_url('.')), create=True)
408
w.add_lines('v1', [], ['hello\n'])
409
w.add_lines('v2', ['v1'], ['hello\n', 'there\n'])
410
411
# We are going to invasively corrupt the text
412
# Make sure the internals of weave are the same
413
self.assertEqual([('{', 0)
414
, 'hello\n'
415
, ('}', None)
416
, ('{', 1)
417
, 'there\n'
418
, ('}', None)
419
], w._weave)
420
421
self.assertEqual(['f572d396fae9206628714fb2ce00f72e94f2258f'
422
, '90f265c6e75f1c8f9ab76dcf85528352c5f215ef'
423
], w._sha1s)
424
w.check()
425
426
# Corrupted
427
w._weave[4] = 'There\n'
428
return w
429
430
def get_file_corrupted_checksum(self):
431
w = self.get_file_corrupted_text()
432
# Corrected
433
w._weave[4] = 'there\n'
434
self.assertEqual('hello\nthere\n', w.get_text('v2'))
435
436
#Invalid checksum, first digit changed
437
w._sha1s[1] = 'f0f265c6e75f1c8f9ab76dcf85528352c5f215ef'
438
return w
439
440
def reopen_file(self, name='foo'):
441
return WeaveFile(name, get_transport(self.get_url('.')))
442
443
def test_no_implicit_create(self):
444
self.assertRaises(errors.NoSuchFile,
445
WeaveFile,
446
'foo',
447
get_transport(self.get_url('.')))
448
449
def get_factory(self):
450
return WeaveFile
451
452
453
class TestKnit(TestCaseWithTransport, VersionedFileTestMixIn):
454
455
def get_file(self, name='foo'):
456
return KnitVersionedFile(name, get_transport(self.get_url('.')),
457
delta=True, create=True)
458
459
def get_factory(self):
460
return KnitVersionedFile
461
462
def get_file_corrupted_text(self):
463
knit = self.get_file()
464
knit.add_lines('v1', [], ['hello\n'])
465
knit.add_lines('v2', ['v1'], ['hello\n', 'there\n'])
466
return knit
467
468
def reopen_file(self, name='foo'):
469
return KnitVersionedFile(name, get_transport(self.get_url('.')), delta=True)
470
471
def test_detection(self):
472
print "TODO for merging: create a corrupted knit."
473
knit = self.get_file()
474
knit.check()
475
476
def test_no_implicit_create(self):
477
self.assertRaises(errors.NoSuchFile,
478
KnitVersionedFile,
479
'foo',
480
get_transport(self.get_url('.')))
481
482
483
class InterString(versionedfile.InterVersionedFile):
484
"""An inter-versionedfile optimised code path for strings.
485
486
This is for use during testing where we use strings as versionedfiles
487
so that none of the default regsitered interversionedfile classes will
488
match - which lets us test the match logic.
489
"""
490
491
@staticmethod
492
def is_compatible(source, target):
493
"""InterString is compatible with strings-as-versionedfiles."""
494
return isinstance(source, str) and isinstance(target, str)
495
496
497
# TODO this and the InterRepository core logic should be consolidatable
498
# if we make the registry a separate class though we still need to
499
# test the behaviour in the active registry to catch failure-to-handle-
500
# stange-objects
501
class TestInterVersionedFile(TestCaseWithTransport):
502
503
def test_get_default_inter_versionedfile(self):
504
# test that the InterVersionedFile.get(a, b) probes
505
# for a class where is_compatible(a, b) returns
506
# true and returns a default interversionedfile otherwise.
507
# This also tests that the default registered optimised interversionedfile
508
# classes do not barf inappropriately when a surprising versionedfile type
509
# is handed to them.
510
dummy_a = "VersionedFile 1."
511
dummy_b = "VersionedFile 2."
512
self.assertGetsDefaultInterVersionedFile(dummy_a, dummy_b)
513
514
def assertGetsDefaultInterVersionedFile(self, a, b):
515
"""Asserts that InterVersionedFile.get(a, b) -> the default."""
516
inter = versionedfile.InterVersionedFile.get(a, b)
517
self.assertEqual(versionedfile.InterVersionedFile,
518
inter.__class__)
519
self.assertEqual(a, inter.source)
520
self.assertEqual(b, inter.target)
521
522
def test_register_inter_versionedfile_class(self):
523
# test that a optimised code path provider - a
524
# InterVersionedFile subclass can be registered and unregistered
525
# and that it is correctly selected when given a versionedfile
526
# pair that it returns true on for the is_compatible static method
527
# check
528
dummy_a = "VersionedFile 1."
529
dummy_b = "VersionedFile 2."
530
versionedfile.InterVersionedFile.register_optimiser(InterString)
531
try:
532
# we should get the default for something InterString returns False
533
# to
534
self.assertFalse(InterString.is_compatible(dummy_a, None))
535
self.assertGetsDefaultInterVersionedFile(dummy_a, None)
536
# and we should get an InterString for a pair it 'likes'
537
self.assertTrue(InterString.is_compatible(dummy_a, dummy_b))
538
inter = versionedfile.InterVersionedFile.get(dummy_a, dummy_b)
539
self.assertEqual(InterString, inter.__class__)
540
self.assertEqual(dummy_a, inter.source)
541
self.assertEqual(dummy_b, inter.target)
542
finally:
543
versionedfile.InterVersionedFile.unregister_optimiser(InterString)
544
# now we should get the default InterVersionedFile object again.
545
self.assertGetsDefaultInterVersionedFile(dummy_a, dummy_b)
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