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# Copyright (C) 2005, 2006, 2007 Canonical Ltd
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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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"""Tests for Knit data structure"""
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from cStringIO import StringIO
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from bzrlib.errors import (
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RevisionAlreadyPresent,
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from bzrlib.index import *
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from bzrlib.knit import (
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from bzrlib.osutils import split_lines
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from bzrlib.symbol_versioning import one_four
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from bzrlib.tests import (
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TestCaseWithMemoryTransport,
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TestCaseWithTransport,
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from bzrlib.transport import get_transport
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from bzrlib.transport.memory import MemoryTransport
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from bzrlib.tuned_gzip import GzipFile
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from bzrlib.util import bencode
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from bzrlib.weave import Weave
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class _CompiledKnitFeature(Feature):
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import bzrlib._knit_load_data_c
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def feature_name(self):
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return 'bzrlib._knit_load_data_c'
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CompiledKnitFeature = _CompiledKnitFeature()
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class KnitContentTestsMixin(object):
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def test_constructor(self):
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content = self._make_content([])
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content = self._make_content([])
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self.assertEqual(content.text(), [])
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content = self._make_content([("origin1", "text1"), ("origin2", "text2")])
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self.assertEqual(content.text(), ["text1", "text2"])
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content = self._make_content([("origin1", "text1"), ("origin2", "text2")])
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copy = content.copy()
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self.assertIsInstance(copy, content.__class__)
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self.assertEqual(copy.annotate(), content.annotate())
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def assertDerivedBlocksEqual(self, source, target, noeol=False):
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"""Assert that the derived matching blocks match real output"""
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source_lines = source.splitlines(True)
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target_lines = target.splitlines(True)
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if noeol and not line.endswith('\n'):
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source_content = self._make_content([(None, nl(l)) for l in source_lines])
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target_content = self._make_content([(None, nl(l)) for l in target_lines])
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line_delta = source_content.line_delta(target_content)
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delta_blocks = list(KnitContent.get_line_delta_blocks(line_delta,
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source_lines, target_lines))
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matcher = KnitSequenceMatcher(None, source_lines, target_lines)
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matcher_blocks = list(list(matcher.get_matching_blocks()))
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self.assertEqual(matcher_blocks, delta_blocks)
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def test_get_line_delta_blocks(self):
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self.assertDerivedBlocksEqual('a\nb\nc\n', 'q\nc\n')
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self.assertDerivedBlocksEqual(TEXT_1, TEXT_1)
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self.assertDerivedBlocksEqual(TEXT_1, TEXT_1A)
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self.assertDerivedBlocksEqual(TEXT_1, TEXT_1B)
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self.assertDerivedBlocksEqual(TEXT_1B, TEXT_1A)
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self.assertDerivedBlocksEqual(TEXT_1A, TEXT_1B)
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self.assertDerivedBlocksEqual(TEXT_1A, '')
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self.assertDerivedBlocksEqual('', TEXT_1A)
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self.assertDerivedBlocksEqual('', '')
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self.assertDerivedBlocksEqual('a\nb\nc', 'a\nb\nc\nd')
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def test_get_line_delta_blocks_noeol(self):
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"""Handle historical knit deltas safely
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Some existing knit deltas don't consider the last line to differ
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when the only difference whether it has a final newline.
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New knit deltas appear to always consider the last line to differ
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self.assertDerivedBlocksEqual('a\nb\nc', 'a\nb\nc\nd\n', noeol=True)
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self.assertDerivedBlocksEqual('a\nb\nc\nd\n', 'a\nb\nc', noeol=True)
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self.assertDerivedBlocksEqual('a\nb\nc\n', 'a\nb\nc', noeol=True)
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self.assertDerivedBlocksEqual('a\nb\nc', 'a\nb\nc\n', noeol=True)
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class TestPlainKnitContent(TestCase, KnitContentTestsMixin):
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def _make_content(self, lines):
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annotated_content = AnnotatedKnitContent(lines)
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return PlainKnitContent(annotated_content.text(), 'bogus')
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def test_annotate(self):
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content = self._make_content([])
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self.assertEqual(content.annotate(), [])
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content = self._make_content([("origin1", "text1"), ("origin2", "text2")])
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self.assertEqual(content.annotate(),
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[("bogus", "text1"), ("bogus", "text2")])
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def test_line_delta(self):
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content1 = self._make_content([("", "a"), ("", "b")])
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content2 = self._make_content([("", "a"), ("", "a"), ("", "c")])
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self.assertEqual(content1.line_delta(content2),
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[(1, 2, 2, ["a", "c"])])
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def test_line_delta_iter(self):
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content1 = self._make_content([("", "a"), ("", "b")])
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content2 = self._make_content([("", "a"), ("", "a"), ("", "c")])
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it = content1.line_delta_iter(content2)
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self.assertEqual(it.next(), (1, 2, 2, ["a", "c"]))
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self.assertRaises(StopIteration, it.next)
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class TestAnnotatedKnitContent(TestCase, KnitContentTestsMixin):
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def _make_content(self, lines):
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return AnnotatedKnitContent(lines)
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def test_annotate(self):
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content = self._make_content([])
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self.assertEqual(content.annotate(), [])
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content = self._make_content([("origin1", "text1"), ("origin2", "text2")])
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self.assertEqual(content.annotate(),
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[("origin1", "text1"), ("origin2", "text2")])
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def test_line_delta(self):
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content1 = self._make_content([("", "a"), ("", "b")])
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content2 = self._make_content([("", "a"), ("", "a"), ("", "c")])
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self.assertEqual(content1.line_delta(content2),
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[(1, 2, 2, [("", "a"), ("", "c")])])
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def test_line_delta_iter(self):
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content1 = self._make_content([("", "a"), ("", "b")])
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content2 = self._make_content([("", "a"), ("", "a"), ("", "c")])
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it = content1.line_delta_iter(content2)
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self.assertEqual(it.next(), (1, 2, 2, [("", "a"), ("", "c")]))
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self.assertRaises(StopIteration, it.next)
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class MockTransport(object):
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def __init__(self, file_lines=None):
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self.file_lines = file_lines
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# We have no base directory for the MockTransport
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def get(self, filename):
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if self.file_lines is None:
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raise NoSuchFile(filename)
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return StringIO("\n".join(self.file_lines))
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def readv(self, relpath, offsets):
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fp = self.get(relpath)
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for offset, size in offsets:
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yield offset, fp.read(size)
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def __getattr__(self, name):
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def queue_call(*args, **kwargs):
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self.calls.append((name, args, kwargs))
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class KnitRecordAccessTestsMixin(object):
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"""Tests for getting and putting knit records."""
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def assertAccessExists(self, access):
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"""Ensure the data area for access has been initialised/exists."""
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raise NotImplementedError(self.assertAccessExists)
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def test_add_raw_records(self):
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"""Add_raw_records adds records retrievable later."""
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access = self.get_access()
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memos = access.add_raw_records([10], '1234567890')
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self.assertEqual(['1234567890'], list(access.get_raw_records(memos)))
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def test_add_several_raw_records(self):
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"""add_raw_records with many records and read some back."""
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access = self.get_access()
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memos = access.add_raw_records([10, 2, 5], '12345678901234567')
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self.assertEqual(['1234567890', '12', '34567'],
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list(access.get_raw_records(memos)))
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self.assertEqual(['1234567890'],
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list(access.get_raw_records(memos[0:1])))
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self.assertEqual(['12'],
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list(access.get_raw_records(memos[1:2])))
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self.assertEqual(['34567'],
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list(access.get_raw_records(memos[2:3])))
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self.assertEqual(['1234567890', '34567'],
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list(access.get_raw_records(memos[0:1] + memos[2:3])))
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def test_create(self):
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"""create() should make a file on disk."""
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access = self.get_access()
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self.assertAccessExists(access)
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def test_open_file(self):
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"""open_file never errors."""
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access = self.get_access()
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class TestKnitKnitAccess(TestCaseWithMemoryTransport, KnitRecordAccessTestsMixin):
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"""Tests for the .kndx implementation."""
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def assertAccessExists(self, access):
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self.assertNotEqual(None, access.open_file())
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def get_access(self):
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"""Get a .knit style access instance."""
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access = _KnitAccess(self.get_transport(), "foo.knit", None, None,
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class TestPackKnitAccess(TestCaseWithMemoryTransport, KnitRecordAccessTestsMixin):
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"""Tests for the pack based access."""
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def assertAccessExists(self, access):
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# as pack based access has no backing unless an index maps data, this
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def get_access(self):
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return self._get_access()[0]
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def _get_access(self, packname='packfile', index='FOO'):
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transport = self.get_transport()
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def write_data(bytes):
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transport.append_bytes(packname, bytes)
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writer = pack.ContainerWriter(write_data)
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indices = {index:(transport, packname)}
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access = _PackAccess(indices, writer=(writer, index))
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return access, writer
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def test_read_from_several_packs(self):
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access, writer = self._get_access()
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memos.extend(access.add_raw_records([10], '1234567890'))
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access, writer = self._get_access('pack2', 'FOOBAR')
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memos.extend(access.add_raw_records([5], '12345'))
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access, writer = self._get_access('pack3', 'BAZ')
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memos.extend(access.add_raw_records([5], 'alpha'))
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transport = self.get_transport()
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access = _PackAccess({"FOO":(transport, 'packfile'),
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"FOOBAR":(transport, 'pack2'),
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"BAZ":(transport, 'pack3')})
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self.assertEqual(['1234567890', '12345', 'alpha'],
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list(access.get_raw_records(memos)))
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self.assertEqual(['1234567890'],
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list(access.get_raw_records(memos[0:1])))
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self.assertEqual(['12345'],
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list(access.get_raw_records(memos[1:2])))
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self.assertEqual(['alpha'],
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list(access.get_raw_records(memos[2:3])))
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self.assertEqual(['1234567890', 'alpha'],
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list(access.get_raw_records(memos[0:1] + memos[2:3])))
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def test_set_writer(self):
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"""The writer should be settable post construction."""
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access = _PackAccess({})
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transport = self.get_transport()
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packname = 'packfile'
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def write_data(bytes):
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transport.append_bytes(packname, bytes)
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writer = pack.ContainerWriter(write_data)
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access.set_writer(writer, index, (transport, packname))
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memos = access.add_raw_records([10], '1234567890')
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self.assertEqual(['1234567890'], list(access.get_raw_records(memos)))
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class LowLevelKnitDataTests(TestCase):
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def create_gz_content(self, text):
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gz_file = gzip.GzipFile(mode='wb', fileobj=sio)
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return sio.getvalue()
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def test_valid_knit_data(self):
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sha1sum = sha.new('foo\nbar\n').hexdigest()
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gz_txt = self.create_gz_content('version rev-id-1 2 %s\n'
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transport = MockTransport([gz_txt])
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access = _KnitAccess(transport, 'filename', None, None, False, False)
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data = _KnitData(access=access)
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records = [('rev-id-1', (None, 0, len(gz_txt)))]
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contents = data.read_records(records)
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self.assertEqual({'rev-id-1':(['foo\n', 'bar\n'], sha1sum)}, contents)
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raw_contents = list(data.read_records_iter_raw(records))
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self.assertEqual([('rev-id-1', gz_txt)], raw_contents)
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def test_not_enough_lines(self):
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sha1sum = sha.new('foo\n').hexdigest()
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# record says 2 lines data says 1
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gz_txt = self.create_gz_content('version rev-id-1 2 %s\n'
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transport = MockTransport([gz_txt])
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access = _KnitAccess(transport, 'filename', None, None, False, False)
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data = _KnitData(access=access)
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records = [('rev-id-1', (None, 0, len(gz_txt)))]
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self.assertRaises(errors.KnitCorrupt, data.read_records, records)
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# read_records_iter_raw won't detect that sort of mismatch/corruption
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raw_contents = list(data.read_records_iter_raw(records))
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self.assertEqual([('rev-id-1', gz_txt)], raw_contents)
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def test_too_many_lines(self):
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sha1sum = sha.new('foo\nbar\n').hexdigest()
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# record says 1 lines data says 2
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gz_txt = self.create_gz_content('version rev-id-1 1 %s\n'
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transport = MockTransport([gz_txt])
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access = _KnitAccess(transport, 'filename', None, None, False, False)
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data = _KnitData(access=access)
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records = [('rev-id-1', (None, 0, len(gz_txt)))]
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self.assertRaises(errors.KnitCorrupt, data.read_records, records)
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# read_records_iter_raw won't detect that sort of mismatch/corruption
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raw_contents = list(data.read_records_iter_raw(records))
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self.assertEqual([('rev-id-1', gz_txt)], raw_contents)
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def test_mismatched_version_id(self):
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sha1sum = sha.new('foo\nbar\n').hexdigest()
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gz_txt = self.create_gz_content('version rev-id-1 2 %s\n'
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transport = MockTransport([gz_txt])
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access = _KnitAccess(transport, 'filename', None, None, False, False)
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data = _KnitData(access=access)
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# We are asking for rev-id-2, but the data is rev-id-1
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records = [('rev-id-2', (None, 0, len(gz_txt)))]
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self.assertRaises(errors.KnitCorrupt, data.read_records, records)
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# read_records_iter_raw will notice if we request the wrong version.
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self.assertRaises(errors.KnitCorrupt, list,
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data.read_records_iter_raw(records))
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def test_uncompressed_data(self):
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sha1sum = sha.new('foo\nbar\n').hexdigest()
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txt = ('version rev-id-1 2 %s\n'
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transport = MockTransport([txt])
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access = _KnitAccess(transport, 'filename', None, None, False, False)
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data = _KnitData(access=access)
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records = [('rev-id-1', (None, 0, len(txt)))]
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# We don't have valid gzip data ==> corrupt
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self.assertRaises(errors.KnitCorrupt, data.read_records, records)
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# read_records_iter_raw will notice the bad data
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self.assertRaises(errors.KnitCorrupt, list,
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data.read_records_iter_raw(records))
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def test_corrupted_data(self):
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sha1sum = sha.new('foo\nbar\n').hexdigest()
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gz_txt = self.create_gz_content('version rev-id-1 2 %s\n'
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# Change 2 bytes in the middle to \xff
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gz_txt = gz_txt[:10] + '\xff\xff' + gz_txt[12:]
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transport = MockTransport([gz_txt])
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access = _KnitAccess(transport, 'filename', None, None, False, False)
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data = _KnitData(access=access)
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records = [('rev-id-1', (None, 0, len(gz_txt)))]
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self.assertRaises(errors.KnitCorrupt, data.read_records, records)
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# read_records_iter_raw will notice if we request the wrong version.
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self.assertRaises(errors.KnitCorrupt, list,
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data.read_records_iter_raw(records))
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class LowLevelKnitIndexTests(TestCase):
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def get_knit_index(self, *args, **kwargs):
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orig = knit._load_data
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knit._load_data = orig
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self.addCleanup(reset)
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from bzrlib._knit_load_data_py import _load_data_py
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knit._load_data = _load_data_py
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return _KnitIndex(get_scope=lambda:None, *args, **kwargs)
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def test_no_such_file(self):
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transport = MockTransport()
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self.assertRaises(NoSuchFile, self.get_knit_index,
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transport, "filename", "r")
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self.assertRaises(NoSuchFile, self.get_knit_index,
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transport, "filename", "w", create=False)
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def test_create_file(self):
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transport = MockTransport()
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index = self.get_knit_index(transport, "filename", "w",
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file_mode="wb", create=True)
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("put_bytes_non_atomic",
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("filename", index.HEADER), {"mode": "wb"}),
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transport.calls.pop(0))
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def test_delay_create_file(self):
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transport = MockTransport()
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index = self.get_knit_index(transport, "filename", "w",
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create=True, file_mode="wb", create_parent_dir=True,
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delay_create=True, dir_mode=0777)
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self.assertEqual([], transport.calls)
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index.add_versions([])
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name, (filename, f), kwargs = transport.calls.pop(0)
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self.assertEqual("put_file_non_atomic", name)
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{"dir_mode": 0777, "create_parent_dir": True, "mode": "wb"},
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self.assertEqual("filename", filename)
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self.assertEqual(index.HEADER, f.read())
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index.add_versions([])
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self.assertEqual(("append_bytes", ("filename", ""), {}),
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transport.calls.pop(0))
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def test_read_utf8_version_id(self):
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unicode_revision_id = u"version-\N{CYRILLIC CAPITAL LETTER A}"
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utf8_revision_id = unicode_revision_id.encode('utf-8')
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transport = MockTransport([
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'%s option 0 1 :' % (utf8_revision_id,)
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index = self.get_knit_index(transport, "filename", "r")
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# _KnitIndex is a private class, and deals in utf8 revision_ids, not
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# Unicode revision_ids.
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self.assertTrue(index.has_version(utf8_revision_id))
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self.assertFalse(index.has_version(unicode_revision_id))
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def test_read_utf8_parents(self):
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unicode_revision_id = u"version-\N{CYRILLIC CAPITAL LETTER A}"
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utf8_revision_id = unicode_revision_id.encode('utf-8')
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transport = MockTransport([
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"version option 0 1 .%s :" % (utf8_revision_id,)
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index = self.get_knit_index(transport, "filename", "r")
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self.assertEqual((utf8_revision_id,),
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index.get_parents_with_ghosts("version"))
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def test_read_ignore_corrupted_lines(self):
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transport = MockTransport([
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"corrupted options 0 1 .b .c ",
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"version options 0 1 :"
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index = self.get_knit_index(transport, "filename", "r")
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self.assertEqual(1, index.num_versions())
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self.assertTrue(index.has_version("version"))
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def test_read_corrupted_header(self):
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transport = MockTransport(['not a bzr knit index header\n'])
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self.assertRaises(KnitHeaderError,
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self.get_knit_index, transport, "filename", "r")
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def test_read_duplicate_entries(self):
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transport = MockTransport([
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"parent options 0 1 :",
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"version options1 0 1 0 :",
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"version options2 1 2 .other :",
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"version options3 3 4 0 .other :"
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index = self.get_knit_index(transport, "filename", "r")
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self.assertEqual(2, index.num_versions())
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# check that the index used is the first one written. (Specific
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# to KnitIndex style indices.
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self.assertEqual("1", index._version_list_to_index(["version"]))
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self.assertEqual((None, 3, 4), index.get_position("version"))
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self.assertEqual(["options3"], index.get_options("version"))
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self.assertEqual(("parent", "other"),
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index.get_parents_with_ghosts("version"))
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def test_read_compressed_parents(self):
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transport = MockTransport([
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"c option 0 1 1 0 :",
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index = self.get_knit_index(transport, "filename", "r")
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self.assertEqual({"b":("a",), "c":("b", "a")},
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index.get_parent_map(["b", "c"]))
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def test_write_utf8_version_id(self):
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unicode_revision_id = u"version-\N{CYRILLIC CAPITAL LETTER A}"
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utf8_revision_id = unicode_revision_id.encode('utf-8')
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transport = MockTransport([
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index = self.get_knit_index(transport, "filename", "r")
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index.add_version(utf8_revision_id, ["option"], (None, 0, 1), [])
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self.assertEqual(("append_bytes", ("filename",
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"\n%s option 0 1 :" % (utf8_revision_id,)),
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transport.calls.pop(0))
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def test_write_utf8_parents(self):
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unicode_revision_id = u"version-\N{CYRILLIC CAPITAL LETTER A}"
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utf8_revision_id = unicode_revision_id.encode('utf-8')
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transport = MockTransport([
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index = self.get_knit_index(transport, "filename", "r")
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index.add_version("version", ["option"], (None, 0, 1), [utf8_revision_id])
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self.assertEqual(("append_bytes", ("filename",
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"\nversion option 0 1 .%s :" % (utf8_revision_id,)),
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transport.calls.pop(0))
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def test_get_ancestry(self):
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transport = MockTransport([
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"b option 0 1 0 .e :",
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"c option 0 1 1 0 :",
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"d option 0 1 2 .f :"
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index = self.get_knit_index(transport, "filename", "r")
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self.assertEqual([], index.get_ancestry([]))
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self.assertEqual(["a"], index.get_ancestry(["a"]))
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self.assertEqual(["a", "b"], index.get_ancestry(["b"]))
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self.assertEqual(["a", "b", "c"], index.get_ancestry(["c"]))
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self.assertEqual(["a", "b", "c", "d"], index.get_ancestry(["d"]))
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self.assertEqual(["a", "b"], index.get_ancestry(["a", "b"]))
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self.assertEqual(["a", "b", "c"], index.get_ancestry(["a", "c"]))
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self.assertRaises(RevisionNotPresent, index.get_ancestry, ["e"])
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def test_get_ancestry_with_ghosts(self):
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transport = MockTransport([
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"b option 0 1 0 .e :",
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"c option 0 1 0 .f .g :",
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"d option 0 1 2 .h .j .k :"
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index = self.get_knit_index(transport, "filename", "r")
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self.assertEqual([], index.get_ancestry_with_ghosts([]))
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self.assertEqual(["a"], index.get_ancestry_with_ghosts(["a"]))
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self.assertEqual(["a", "e", "b"],
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index.get_ancestry_with_ghosts(["b"]))
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self.assertEqual(["a", "g", "f", "c"],
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index.get_ancestry_with_ghosts(["c"]))
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self.assertEqual(["a", "g", "f", "c", "k", "j", "h", "d"],
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index.get_ancestry_with_ghosts(["d"]))
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self.assertEqual(["a", "e", "b"],
652
index.get_ancestry_with_ghosts(["a", "b"]))
653
self.assertEqual(["a", "g", "f", "c"],
654
index.get_ancestry_with_ghosts(["a", "c"]))
656
["a", "g", "f", "c", "e", "b", "k", "j", "h", "d"],
657
index.get_ancestry_with_ghosts(["b", "d"]))
659
self.assertRaises(RevisionNotPresent,
660
index.get_ancestry_with_ghosts, ["e"])
662
def test_num_versions(self):
663
transport = MockTransport([
666
index = self.get_knit_index(transport, "filename", "r")
668
self.assertEqual(0, index.num_versions())
669
self.assertEqual(0, len(index))
671
index.add_version("a", ["option"], (None, 0, 1), [])
672
self.assertEqual(1, index.num_versions())
673
self.assertEqual(1, len(index))
675
index.add_version("a", ["option2"], (None, 1, 2), [])
676
self.assertEqual(1, index.num_versions())
677
self.assertEqual(1, len(index))
679
index.add_version("b", ["option"], (None, 0, 1), [])
680
self.assertEqual(2, index.num_versions())
681
self.assertEqual(2, len(index))
683
def test_get_versions(self):
684
transport = MockTransport([
687
index = self.get_knit_index(transport, "filename", "r")
689
self.assertEqual([], index.get_versions())
691
index.add_version("a", ["option"], (None, 0, 1), [])
692
self.assertEqual(["a"], index.get_versions())
694
index.add_version("a", ["option"], (None, 0, 1), [])
695
self.assertEqual(["a"], index.get_versions())
697
index.add_version("b", ["option"], (None, 0, 1), [])
698
self.assertEqual(["a", "b"], index.get_versions())
700
def test_add_version(self):
701
transport = MockTransport([
704
index = self.get_knit_index(transport, "filename", "r")
706
index.add_version("a", ["option"], (None, 0, 1), ["b"])
707
self.assertEqual(("append_bytes",
708
("filename", "\na option 0 1 .b :"),
709
{}), transport.calls.pop(0))
710
self.assertTrue(index.has_version("a"))
711
self.assertEqual(1, index.num_versions())
712
self.assertEqual((None, 0, 1), index.get_position("a"))
713
self.assertEqual(["option"], index.get_options("a"))
714
self.assertEqual(("b",), index.get_parents_with_ghosts("a"))
716
index.add_version("a", ["opt"], (None, 1, 2), ["c"])
717
self.assertEqual(("append_bytes",
718
("filename", "\na opt 1 2 .c :"),
719
{}), transport.calls.pop(0))
720
self.assertTrue(index.has_version("a"))
721
self.assertEqual(1, index.num_versions())
722
self.assertEqual((None, 1, 2), index.get_position("a"))
723
self.assertEqual(["opt"], index.get_options("a"))
724
self.assertEqual(("c",), index.get_parents_with_ghosts("a"))
726
index.add_version("b", ["option"], (None, 2, 3), ["a"])
727
self.assertEqual(("append_bytes",
728
("filename", "\nb option 2 3 0 :"),
729
{}), transport.calls.pop(0))
730
self.assertTrue(index.has_version("b"))
731
self.assertEqual(2, index.num_versions())
732
self.assertEqual((None, 2, 3), index.get_position("b"))
733
self.assertEqual(["option"], index.get_options("b"))
734
self.assertEqual(("a",), index.get_parents_with_ghosts("b"))
736
def test_add_versions(self):
737
transport = MockTransport([
740
index = self.get_knit_index(transport, "filename", "r")
743
("a", ["option"], (None, 0, 1), ["b"]),
744
("a", ["opt"], (None, 1, 2), ["c"]),
745
("b", ["option"], (None, 2, 3), ["a"])
747
self.assertEqual(("append_bytes", ("filename",
748
"\na option 0 1 .b :"
751
), {}), transport.calls.pop(0))
752
self.assertTrue(index.has_version("a"))
753
self.assertTrue(index.has_version("b"))
754
self.assertEqual(2, index.num_versions())
755
self.assertEqual((None, 1, 2), index.get_position("a"))
756
self.assertEqual((None, 2, 3), index.get_position("b"))
757
self.assertEqual(["opt"], index.get_options("a"))
758
self.assertEqual(["option"], index.get_options("b"))
759
self.assertEqual(("c",), index.get_parents_with_ghosts("a"))
760
self.assertEqual(("a",), index.get_parents_with_ghosts("b"))
762
def test_add_versions_random_id_is_accepted(self):
763
transport = MockTransport([
766
index = self.get_knit_index(transport, "filename", "r")
769
("a", ["option"], (None, 0, 1), ["b"]),
770
("a", ["opt"], (None, 1, 2), ["c"]),
771
("b", ["option"], (None, 2, 3), ["a"])
774
def test_delay_create_and_add_versions(self):
775
transport = MockTransport()
777
index = self.get_knit_index(transport, "filename", "w",
778
create=True, file_mode="wb", create_parent_dir=True,
779
delay_create=True, dir_mode=0777)
780
self.assertEqual([], transport.calls)
783
("a", ["option"], (None, 0, 1), ["b"]),
784
("a", ["opt"], (None, 1, 2), ["c"]),
785
("b", ["option"], (None, 2, 3), ["a"])
787
name, (filename, f), kwargs = transport.calls.pop(0)
788
self.assertEqual("put_file_non_atomic", name)
790
{"dir_mode": 0777, "create_parent_dir": True, "mode": "wb"},
792
self.assertEqual("filename", filename)
795
"\na option 0 1 .b :"
797
"\nb option 2 3 0 :",
800
def test_has_version(self):
801
transport = MockTransport([
805
index = self.get_knit_index(transport, "filename", "r")
807
self.assertTrue(index.has_version("a"))
808
self.assertFalse(index.has_version("b"))
810
def test_get_position(self):
811
transport = MockTransport([
816
index = self.get_knit_index(transport, "filename", "r")
818
self.assertEqual((None, 0, 1), index.get_position("a"))
819
self.assertEqual((None, 1, 2), index.get_position("b"))
821
def test_get_method(self):
822
transport = MockTransport([
824
"a fulltext,unknown 0 1 :",
825
"b unknown,line-delta 1 2 :",
828
index = self.get_knit_index(transport, "filename", "r")
830
self.assertEqual("fulltext", index.get_method("a"))
831
self.assertEqual("line-delta", index.get_method("b"))
832
self.assertRaises(errors.KnitIndexUnknownMethod, index.get_method, "c")
834
def test_get_options(self):
835
transport = MockTransport([
840
index = self.get_knit_index(transport, "filename", "r")
842
self.assertEqual(["opt1"], index.get_options("a"))
843
self.assertEqual(["opt2", "opt3"], index.get_options("b"))
845
def test_get_parent_map(self):
846
transport = MockTransport([
849
"b option 1 2 0 .c :",
850
"c option 1 2 1 0 .e :"
852
index = self.get_knit_index(transport, "filename", "r")
858
}, index.get_parent_map(["a", "b", "c"]))
860
def test_get_parents_with_ghosts(self):
861
transport = MockTransport([
864
"b option 1 2 0 .c :",
865
"c option 1 2 1 0 .e :"
867
index = self.get_knit_index(transport, "filename", "r")
869
self.assertEqual((), index.get_parents_with_ghosts("a"))
870
self.assertEqual(("a", "c"), index.get_parents_with_ghosts("b"))
871
self.assertEqual(("b", "a", "e"),
872
index.get_parents_with_ghosts("c"))
874
def test_check_versions_present(self):
875
transport = MockTransport([
880
index = self.get_knit_index(transport, "filename", "r")
882
check = index.check_versions_present
888
self.assertRaises(RevisionNotPresent, check, ["c"])
889
self.assertRaises(RevisionNotPresent, check, ["a", "b", "c"])
891
def test_impossible_parent(self):
892
"""Test we get KnitCorrupt if the parent couldn't possibly exist."""
893
transport = MockTransport([
896
"b option 0 1 4 :" # We don't have a 4th record
899
self.assertRaises(errors.KnitCorrupt,
900
self.get_knit_index, transport, 'filename', 'r')
902
if (str(e) == ('exceptions must be strings, classes, or instances,'
903
' not exceptions.IndexError')
904
and sys.version_info[0:2] >= (2,5)):
905
self.knownFailure('Pyrex <0.9.5 fails with TypeError when'
906
' raising new style exceptions with python'
911
def test_corrupted_parent(self):
912
transport = MockTransport([
916
"c option 0 1 1v :", # Can't have a parent of '1v'
919
self.assertRaises(errors.KnitCorrupt,
920
self.get_knit_index, transport, 'filename', 'r')
922
if (str(e) == ('exceptions must be strings, classes, or instances,'
923
' not exceptions.ValueError')
924
and sys.version_info[0:2] >= (2,5)):
925
self.knownFailure('Pyrex <0.9.5 fails with TypeError when'
926
' raising new style exceptions with python'
931
def test_corrupted_parent_in_list(self):
932
transport = MockTransport([
936
"c option 0 1 1 v :", # Can't have a parent of 'v'
939
self.assertRaises(errors.KnitCorrupt,
940
self.get_knit_index, transport, 'filename', 'r')
942
if (str(e) == ('exceptions must be strings, classes, or instances,'
943
' not exceptions.ValueError')
944
and sys.version_info[0:2] >= (2,5)):
945
self.knownFailure('Pyrex <0.9.5 fails with TypeError when'
946
' raising new style exceptions with python'
951
def test_invalid_position(self):
952
transport = MockTransport([
957
self.assertRaises(errors.KnitCorrupt,
958
self.get_knit_index, transport, 'filename', 'r')
960
if (str(e) == ('exceptions must be strings, classes, or instances,'
961
' not exceptions.ValueError')
962
and sys.version_info[0:2] >= (2,5)):
963
self.knownFailure('Pyrex <0.9.5 fails with TypeError when'
964
' raising new style exceptions with python'
969
def test_invalid_size(self):
970
transport = MockTransport([
975
self.assertRaises(errors.KnitCorrupt,
976
self.get_knit_index, transport, 'filename', 'r')
978
if (str(e) == ('exceptions must be strings, classes, or instances,'
979
' not exceptions.ValueError')
980
and sys.version_info[0:2] >= (2,5)):
981
self.knownFailure('Pyrex <0.9.5 fails with TypeError when'
982
' raising new style exceptions with python'
987
def test_short_line(self):
988
transport = MockTransport([
991
"b option 10 10 0", # This line isn't terminated, ignored
993
index = self.get_knit_index(transport, "filename", "r")
994
self.assertEqual(['a'], index.get_versions())
996
def test_skip_incomplete_record(self):
997
# A line with bogus data should just be skipped
998
transport = MockTransport([
1001
"b option 10 10 0", # This line isn't terminated, ignored
1002
"c option 20 10 0 :", # Properly terminated, and starts with '\n'
1004
index = self.get_knit_index(transport, "filename", "r")
1005
self.assertEqual(['a', 'c'], index.get_versions())
1007
def test_trailing_characters(self):
1008
# A line with bogus data should just be skipped
1009
transport = MockTransport([
1012
"b option 10 10 0 :a", # This line has extra trailing characters
1013
"c option 20 10 0 :", # Properly terminated, and starts with '\n'
1015
index = self.get_knit_index(transport, "filename", "r")
1016
self.assertEqual(['a', 'c'], index.get_versions())
1019
class LowLevelKnitIndexTests_c(LowLevelKnitIndexTests):
1021
_test_needs_features = [CompiledKnitFeature]
1023
def get_knit_index(self, *args, **kwargs):
1024
orig = knit._load_data
1026
knit._load_data = orig
1027
self.addCleanup(reset)
1028
from bzrlib._knit_load_data_c import _load_data_c
1029
knit._load_data = _load_data_c
1030
return _KnitIndex(get_scope=lambda:None, *args, **kwargs)
1033
class KnitTests(TestCaseWithTransport):
1034
"""Class containing knit test helper routines."""
1036
def make_test_knit(self, annotate=False, delay_create=False, index=None,
1037
name='test', delta=True, access_mode='w'):
1039
factory = KnitPlainFactory()
1043
index = _KnitIndex(get_transport('.'), name + INDEX_SUFFIX,
1044
access_mode, create=True, file_mode=None,
1045
create_parent_dir=False, delay_create=delay_create,
1046
dir_mode=None, get_scope=lambda:None)
1047
access = _KnitAccess(get_transport('.'), name + DATA_SUFFIX, None,
1048
None, delay_create, False)
1049
return KnitVersionedFile(name, get_transport('.'), factory=factory,
1050
create=True, delay_create=delay_create, index=index,
1051
access_method=access, delta=delta)
1053
def assertRecordContentEqual(self, knit, version_id, candidate_content):
1054
"""Assert that some raw record content matches the raw record content
1055
for a particular version_id in the given knit.
1057
index_memo = knit._index.get_position(version_id)
1058
record = (version_id, index_memo)
1059
[(_, expected_content)] = list(knit._data.read_records_iter_raw([record]))
1060
self.assertEqual(expected_content, candidate_content)
1063
class BasicKnitTests(KnitTests):
1065
def add_stock_one_and_one_a(self, k):
1066
k.add_lines('text-1', [], split_lines(TEXT_1))
1067
k.add_lines('text-1a', ['text-1'], split_lines(TEXT_1A))
1069
def test_knit_constructor(self):
1070
"""Construct empty k"""
1071
self.make_test_knit()
1073
def test_make_explicit_index(self):
1074
"""We can supply an index to use."""
1075
knit = KnitVersionedFile('test', get_transport('.'),
1076
index='strangelove', access_method="a")
1077
self.assertEqual(knit._index, 'strangelove')
1079
def test_knit_add(self):
1080
"""Store one text in knit and retrieve"""
1081
k = self.make_test_knit()
1082
k.add_lines('text-1', [], split_lines(TEXT_1))
1083
self.assertTrue(k.has_version('text-1'))
1084
self.assertEqualDiff(''.join(k.get_lines('text-1')), TEXT_1)
1086
def test_newline_empty_lines(self):
1087
# ensure that ["\n"] round trips ok.
1088
knit = self.make_test_knit()
1089
knit.add_lines('a', [], ["\n"])
1090
knit.add_lines_with_ghosts('b', [], ["\n"])
1091
self.assertEqual(["\n"], knit.get_lines('a'))
1092
self.assertEqual(["\n"], knit.get_lines('b'))
1093
self.assertEqual(['fulltext'], knit._index.get_options('a'))
1094
self.assertEqual(['fulltext'], knit._index.get_options('b'))
1095
knit.add_lines('c', ['a'], ["\n"])
1096
knit.add_lines_with_ghosts('d', ['b'], ["\n"])
1097
self.assertEqual(["\n"], knit.get_lines('c'))
1098
self.assertEqual(["\n"], knit.get_lines('d'))
1099
self.assertEqual(['line-delta'], knit._index.get_options('c'))
1100
self.assertEqual(['line-delta'], knit._index.get_options('d'))
1102
def test_empty_lines(self):
1103
# bizarrely, [] is not listed as having no-eol.
1104
knit = self.make_test_knit()
1105
knit.add_lines('a', [], [])
1106
knit.add_lines_with_ghosts('b', [], [])
1107
self.assertEqual([], knit.get_lines('a'))
1108
self.assertEqual([], knit.get_lines('b'))
1109
self.assertEqual(['fulltext'], knit._index.get_options('a'))
1110
self.assertEqual(['fulltext'], knit._index.get_options('b'))
1111
knit.add_lines('c', ['a'], [])
1112
knit.add_lines_with_ghosts('d', ['b'], [])
1113
self.assertEqual([], knit.get_lines('c'))
1114
self.assertEqual([], knit.get_lines('d'))
1115
self.assertEqual(['line-delta'], knit._index.get_options('c'))
1116
self.assertEqual(['line-delta'], knit._index.get_options('d'))
1118
def test_knit_reload(self):
1119
# test that the content in a reloaded knit is correct
1120
k = self.make_test_knit()
1121
k.add_lines('text-1', [], split_lines(TEXT_1))
1123
k2 = make_file_knit('test', get_transport('.'), access_mode='r',
1124
factory=KnitPlainFactory(), create=True)
1125
self.assertTrue(k2.has_version('text-1'))
1126
self.assertEqualDiff(''.join(k2.get_lines('text-1')), TEXT_1)
1128
def test_knit_several(self):
1129
"""Store several texts in a knit"""
1130
k = self.make_test_knit()
1131
k.add_lines('text-1', [], split_lines(TEXT_1))
1132
k.add_lines('text-2', [], split_lines(TEXT_2))
1133
self.assertEqualDiff(''.join(k.get_lines('text-1')), TEXT_1)
1134
self.assertEqualDiff(''.join(k.get_lines('text-2')), TEXT_2)
1136
def test_repeated_add(self):
1137
"""Knit traps attempt to replace existing version"""
1138
k = self.make_test_knit()
1139
k.add_lines('text-1', [], split_lines(TEXT_1))
1140
self.assertRaises(RevisionAlreadyPresent,
1142
'text-1', [], split_lines(TEXT_1))
1144
def test_empty(self):
1145
k = self.make_test_knit(True)
1146
k.add_lines('text-1', [], [])
1147
self.assertEquals(k.get_lines('text-1'), [])
1149
def test_incomplete(self):
1150
"""Test if texts without a ending line-end can be inserted and
1152
k = make_file_knit('test', get_transport('.'), delta=False, create=True)
1153
k.add_lines('text-1', [], ['a\n', 'b' ])
1154
k.add_lines('text-2', ['text-1'], ['a\rb\n', 'b\n'])
1155
# reopening ensures maximum room for confusion
1156
k = make_file_knit('test', get_transport('.'), delta=False, create=True)
1157
self.assertEquals(k.get_lines('text-1'), ['a\n', 'b' ])
1158
self.assertEquals(k.get_lines('text-2'), ['a\rb\n', 'b\n'])
1160
def test_delta(self):
1161
"""Expression of knit delta as lines"""
1162
k = self.make_test_knit()
1163
td = list(line_delta(TEXT_1.splitlines(True),
1164
TEXT_1A.splitlines(True)))
1165
self.assertEqualDiff(''.join(td), delta_1_1a)
1166
out = apply_line_delta(TEXT_1.splitlines(True), td)
1167
self.assertEqualDiff(''.join(out), TEXT_1A)
1169
def test_add_with_parents(self):
1170
"""Store in knit with parents"""
1171
k = self.make_test_knit()
1172
self.add_stock_one_and_one_a(k)
1173
self.assertEqual({'text-1':(), 'text-1a':('text-1',)},
1174
k.get_parent_map(['text-1', 'text-1a']))
1176
def test_ancestry(self):
1177
"""Store in knit with parents"""
1178
k = self.make_test_knit()
1179
self.add_stock_one_and_one_a(k)
1180
self.assertEquals(set(k.get_ancestry(['text-1a'])), set(['text-1a', 'text-1']))
1182
def test_add_delta(self):
1183
"""Store in knit with parents"""
1184
k = self.make_test_knit(annotate=False)
1185
self.add_stock_one_and_one_a(k)
1186
self.assertEqualDiff(''.join(k.get_lines('text-1a')), TEXT_1A)
1188
def test_add_delta_knit_graph_index(self):
1189
"""Does adding work with a KnitGraphIndex."""
1190
index = InMemoryGraphIndex(2)
1191
knit_index = KnitGraphIndex(index, add_callback=index.add_nodes,
1193
k = self.make_test_knit(annotate=True, index=knit_index)
1194
self.add_stock_one_and_one_a(k)
1195
self.assertEqualDiff(''.join(k.get_lines('text-1a')), TEXT_1A)
1196
# check the index had the right data added.
1197
self.assertEqual(set([
1198
(index, ('text-1', ), ' 0 127', ((), ())),
1199
(index, ('text-1a', ), ' 127 140', ((('text-1', ),), (('text-1', ),))),
1200
]), set(index.iter_all_entries()))
1201
# we should not have a .kndx file
1202
self.assertFalse(get_transport('.').has('test.kndx'))
1204
def test_annotate(self):
1206
k = self.make_test_knit(annotate=True, name='knit')
1207
self.insert_and_test_small_annotate(k)
1209
def insert_and_test_small_annotate(self, k):
1210
"""test annotation with k works correctly."""
1211
k.add_lines('text-1', [], ['a\n', 'b\n'])
1212
k.add_lines('text-2', ['text-1'], ['a\n', 'c\n'])
1214
origins = k.annotate('text-2')
1215
self.assertEquals(origins[0], ('text-1', 'a\n'))
1216
self.assertEquals(origins[1], ('text-2', 'c\n'))
1218
def test_annotate_fulltext(self):
1220
k = self.make_test_knit(annotate=True, name='knit', delta=False)
1221
self.insert_and_test_small_annotate(k)
1223
def test_annotate_merge_1(self):
1224
k = self.make_test_knit(True)
1225
k.add_lines('text-a1', [], ['a\n', 'b\n'])
1226
k.add_lines('text-a2', [], ['d\n', 'c\n'])
1227
k.add_lines('text-am', ['text-a1', 'text-a2'], ['d\n', 'b\n'])
1228
origins = k.annotate('text-am')
1229
self.assertEquals(origins[0], ('text-a2', 'd\n'))
1230
self.assertEquals(origins[1], ('text-a1', 'b\n'))
1232
def test_annotate_merge_2(self):
1233
k = self.make_test_knit(True)
1234
k.add_lines('text-a1', [], ['a\n', 'b\n', 'c\n'])
1235
k.add_lines('text-a2', [], ['x\n', 'y\n', 'z\n'])
1236
k.add_lines('text-am', ['text-a1', 'text-a2'], ['a\n', 'y\n', 'c\n'])
1237
origins = k.annotate('text-am')
1238
self.assertEquals(origins[0], ('text-a1', 'a\n'))
1239
self.assertEquals(origins[1], ('text-a2', 'y\n'))
1240
self.assertEquals(origins[2], ('text-a1', 'c\n'))
1242
def test_annotate_merge_9(self):
1243
k = self.make_test_knit(True)
1244
k.add_lines('text-a1', [], ['a\n', 'b\n', 'c\n'])
1245
k.add_lines('text-a2', [], ['x\n', 'y\n', 'z\n'])
1246
k.add_lines('text-am', ['text-a1', 'text-a2'], ['k\n', 'y\n', 'c\n'])
1247
origins = k.annotate('text-am')
1248
self.assertEquals(origins[0], ('text-am', 'k\n'))
1249
self.assertEquals(origins[1], ('text-a2', 'y\n'))
1250
self.assertEquals(origins[2], ('text-a1', 'c\n'))
1252
def test_annotate_merge_3(self):
1253
k = self.make_test_knit(True)
1254
k.add_lines('text-a1', [], ['a\n', 'b\n', 'c\n'])
1255
k.add_lines('text-a2', [] ,['x\n', 'y\n', 'z\n'])
1256
k.add_lines('text-am', ['text-a1', 'text-a2'], ['k\n', 'y\n', 'z\n'])
1257
origins = k.annotate('text-am')
1258
self.assertEquals(origins[0], ('text-am', 'k\n'))
1259
self.assertEquals(origins[1], ('text-a2', 'y\n'))
1260
self.assertEquals(origins[2], ('text-a2', 'z\n'))
1262
def test_annotate_merge_4(self):
1263
k = self.make_test_knit(True)
1264
k.add_lines('text-a1', [], ['a\n', 'b\n', 'c\n'])
1265
k.add_lines('text-a2', [], ['x\n', 'y\n', 'z\n'])
1266
k.add_lines('text-a3', ['text-a1'], ['a\n', 'b\n', 'p\n'])
1267
k.add_lines('text-am', ['text-a2', 'text-a3'], ['a\n', 'b\n', 'z\n'])
1268
origins = k.annotate('text-am')
1269
self.assertEquals(origins[0], ('text-a1', 'a\n'))
1270
self.assertEquals(origins[1], ('text-a1', 'b\n'))
1271
self.assertEquals(origins[2], ('text-a2', 'z\n'))
1273
def test_annotate_merge_5(self):
1274
k = self.make_test_knit(True)
1275
k.add_lines('text-a1', [], ['a\n', 'b\n', 'c\n'])
1276
k.add_lines('text-a2', [], ['d\n', 'e\n', 'f\n'])
1277
k.add_lines('text-a3', [], ['x\n', 'y\n', 'z\n'])
1278
k.add_lines('text-am',
1279
['text-a1', 'text-a2', 'text-a3'],
1280
['a\n', 'e\n', 'z\n'])
1281
origins = k.annotate('text-am')
1282
self.assertEquals(origins[0], ('text-a1', 'a\n'))
1283
self.assertEquals(origins[1], ('text-a2', 'e\n'))
1284
self.assertEquals(origins[2], ('text-a3', 'z\n'))
1286
def test_annotate_file_cherry_pick(self):
1287
k = self.make_test_knit(True)
1288
k.add_lines('text-1', [], ['a\n', 'b\n', 'c\n'])
1289
k.add_lines('text-2', ['text-1'], ['d\n', 'e\n', 'f\n'])
1290
k.add_lines('text-3', ['text-2', 'text-1'], ['a\n', 'b\n', 'c\n'])
1291
origins = k.annotate('text-3')
1292
self.assertEquals(origins[0], ('text-1', 'a\n'))
1293
self.assertEquals(origins[1], ('text-1', 'b\n'))
1294
self.assertEquals(origins[2], ('text-1', 'c\n'))
1296
def _test_join_with_factories(self, k1_factory, k2_factory):
1297
k1 = make_file_knit('test1', get_transport('.'), factory=k1_factory, create=True)
1298
k1.add_lines('text-a', [], ['a1\n', 'a2\n', 'a3\n'])
1299
k1.add_lines('text-b', ['text-a'], ['a1\n', 'b2\n', 'a3\n'])
1300
k1.add_lines('text-c', [], ['c1\n', 'c2\n', 'c3\n'])
1301
k1.add_lines('text-d', ['text-c'], ['c1\n', 'd2\n', 'd3\n'])
1302
k1.add_lines('text-m', ['text-b', 'text-d'], ['a1\n', 'b2\n', 'd3\n'])
1303
k2 = make_file_knit('test2', get_transport('.'), factory=k2_factory, create=True)
1304
count = k2.join(k1, version_ids=['text-m'])
1305
self.assertEquals(count, 5)
1306
self.assertTrue(k2.has_version('text-a'))
1307
self.assertTrue(k2.has_version('text-c'))
1308
origins = k2.annotate('text-m')
1309
self.assertEquals(origins[0], ('text-a', 'a1\n'))
1310
self.assertEquals(origins[1], ('text-b', 'b2\n'))
1311
self.assertEquals(origins[2], ('text-d', 'd3\n'))
1313
def test_knit_join_plain_to_plain(self):
1314
"""Test joining a plain knit with a plain knit."""
1315
self._test_join_with_factories(KnitPlainFactory(), KnitPlainFactory())
1317
def test_knit_join_anno_to_anno(self):
1318
"""Test joining an annotated knit with an annotated knit."""
1319
self._test_join_with_factories(None, None)
1321
def test_knit_join_anno_to_plain(self):
1322
"""Test joining an annotated knit with a plain knit."""
1323
self._test_join_with_factories(None, KnitPlainFactory())
1325
def test_knit_join_plain_to_anno(self):
1326
"""Test joining a plain knit with an annotated knit."""
1327
self._test_join_with_factories(KnitPlainFactory(), None)
1329
def test_reannotate(self):
1330
k1 = make_file_knit('knit1', get_transport('.'),
1331
factory=KnitAnnotateFactory(), create=True)
1333
k1.add_lines('text-a', [], ['a\n', 'b\n'])
1335
k1.add_lines('text-b', ['text-a'], ['a\n', 'c\n'])
1337
k2 = make_file_knit('test2', get_transport('.'),
1338
factory=KnitAnnotateFactory(), create=True)
1339
k2.join(k1, version_ids=['text-b'])
1342
k1.add_lines('text-X', ['text-b'], ['a\n', 'b\n'])
1344
k2.add_lines('text-c', ['text-b'], ['z\n', 'c\n'])
1346
k2.add_lines('text-Y', ['text-b'], ['b\n', 'c\n'])
1348
# test-c will have index 3
1349
k1.join(k2, version_ids=['text-c'])
1351
lines = k1.get_lines('text-c')
1352
self.assertEquals(lines, ['z\n', 'c\n'])
1354
origins = k1.annotate('text-c')
1355
self.assertEquals(origins[0], ('text-c', 'z\n'))
1356
self.assertEquals(origins[1], ('text-b', 'c\n'))
1358
def test_get_line_delta_texts(self):
1359
"""Make sure we can call get_texts on text with reused line deltas"""
1360
k1 = make_file_knit('test1', get_transport('.'),
1361
factory=KnitPlainFactory(), create=True)
1366
parents = ['%d' % (t-1)]
1367
k1.add_lines('%d' % t, parents, ['hello\n'] * t)
1368
k1.get_texts(('%d' % t) for t in range(3))
1370
def test_iter_lines_reads_in_order(self):
1371
instrumented_t = get_transport('trace+memory:///')
1372
k1 = make_file_knit('id', instrumented_t, create=True, delta=True)
1373
self.assertEqual([('get', 'id.kndx',)], instrumented_t._activity)
1374
# add texts with no required ordering
1375
k1.add_lines('base', [], ['text\n'])
1376
k1.add_lines('base2', [], ['text2\n'])
1377
# clear the logged activity, but preserve the list instance in case of
1378
# clones pointing at it.
1379
del instrumented_t._activity[:]
1380
# request a last-first iteration
1381
results = list(k1.iter_lines_added_or_present_in_versions(
1384
[('readv', 'id.knit', [(0, 87), (87, 89)], False, None)],
1385
instrumented_t._activity)
1386
self.assertEqual([('text\n', 'base'), ('text2\n', 'base2')], results)
1388
def test_knit_format(self):
1389
# this tests that a new knit index file has the expected content
1390
# and that is writes the data we expect as records are added.
1391
knit = self.make_test_knit(True)
1392
# Now knit files are not created until we first add data to them
1393
self.assertFileEqual("# bzr knit index 8\n", 'test.kndx')
1394
knit.add_lines_with_ghosts('revid', ['a_ghost'], ['a\n'])
1395
self.assertFileEqual(
1396
"# bzr knit index 8\n"
1398
"revid fulltext 0 84 .a_ghost :",
1400
knit.add_lines_with_ghosts('revid2', ['revid'], ['a\n'])
1401
self.assertFileEqual(
1402
"# bzr knit index 8\n"
1403
"\nrevid fulltext 0 84 .a_ghost :"
1404
"\nrevid2 line-delta 84 82 0 :",
1406
# we should be able to load this file again
1407
knit = make_file_knit('test', get_transport('.'), access_mode='r')
1408
self.assertEqual(['revid', 'revid2'], knit.versions())
1409
# write a short write to the file and ensure that its ignored
1410
indexfile = file('test.kndx', 'ab')
1411
indexfile.write('\nrevid3 line-delta 166 82 1 2 3 4 5 .phwoar:demo ')
1413
# we should be able to load this file again
1414
knit = make_file_knit('test', get_transport('.'), access_mode='w')
1415
self.assertEqual(['revid', 'revid2'], knit.versions())
1416
# and add a revision with the same id the failed write had
1417
knit.add_lines('revid3', ['revid2'], ['a\n'])
1418
# and when reading it revid3 should now appear.
1419
knit = make_file_knit('test', get_transport('.'), access_mode='r')
1420
self.assertEqual(['revid', 'revid2', 'revid3'], knit.versions())
1421
self.assertEqual({'revid3':('revid2',)}, knit.get_parent_map(['revid3']))
1423
def test_delay_create(self):
1424
"""Test that passing delay_create=True creates files late"""
1425
knit = self.make_test_knit(annotate=True, delay_create=True)
1426
self.failIfExists('test.knit')
1427
self.failIfExists('test.kndx')
1428
knit.add_lines_with_ghosts('revid', ['a_ghost'], ['a\n'])
1429
self.failUnlessExists('test.knit')
1430
self.assertFileEqual(
1431
"# bzr knit index 8\n"
1433
"revid fulltext 0 84 .a_ghost :",
1436
def test_create_parent_dir(self):
1437
"""create_parent_dir can create knits in nonexistant dirs"""
1438
# Has no effect if we don't set 'delay_create'
1439
trans = get_transport('.')
1440
self.assertRaises(NoSuchFile, make_file_knit, 'dir/test',
1441
trans, access_mode='w', factory=None,
1442
create=True, create_parent_dir=True)
1443
# Nothing should have changed yet
1444
knit = make_file_knit('dir/test', trans, access_mode='w',
1445
factory=None, create=True,
1446
create_parent_dir=True,
1448
self.failIfExists('dir/test.knit')
1449
self.failIfExists('dir/test.kndx')
1450
self.failIfExists('dir')
1451
knit.add_lines('revid', [], ['a\n'])
1452
self.failUnlessExists('dir')
1453
self.failUnlessExists('dir/test.knit')
1454
self.assertFileEqual(
1455
"# bzr knit index 8\n"
1457
"revid fulltext 0 84 :",
1460
def test_create_mode_700(self):
1461
trans = get_transport('.')
1462
if not trans._can_roundtrip_unix_modebits():
1463
# Can't roundtrip, so no need to run this test
1465
knit = make_file_knit('dir/test', trans, access_mode='w', factory=None,
1466
create=True, create_parent_dir=True, delay_create=True,
1467
file_mode=0600, dir_mode=0700)
1468
knit.add_lines('revid', [], ['a\n'])
1469
self.assertTransportMode(trans, 'dir', 0700)
1470
self.assertTransportMode(trans, 'dir/test.knit', 0600)
1471
self.assertTransportMode(trans, 'dir/test.kndx', 0600)
1473
def test_create_mode_770(self):
1474
trans = get_transport('.')
1475
if not trans._can_roundtrip_unix_modebits():
1476
# Can't roundtrip, so no need to run this test
1478
knit = make_file_knit('dir/test', trans, access_mode='w', factory=None,
1479
create=True, create_parent_dir=True, delay_create=True,
1480
file_mode=0660, dir_mode=0770)
1481
knit.add_lines('revid', [], ['a\n'])
1482
self.assertTransportMode(trans, 'dir', 0770)
1483
self.assertTransportMode(trans, 'dir/test.knit', 0660)
1484
self.assertTransportMode(trans, 'dir/test.kndx', 0660)
1486
def test_create_mode_777(self):
1487
trans = get_transport('.')
1488
if not trans._can_roundtrip_unix_modebits():
1489
# Can't roundtrip, so no need to run this test
1491
knit = make_file_knit('dir/test', trans, access_mode='w', factory=None,
1492
create=True, create_parent_dir=True, delay_create=True,
1493
file_mode=0666, dir_mode=0777)
1494
knit.add_lines('revid', [], ['a\n'])
1495
self.assertTransportMode(trans, 'dir', 0777)
1496
self.assertTransportMode(trans, 'dir/test.knit', 0666)
1497
self.assertTransportMode(trans, 'dir/test.kndx', 0666)
1499
def test_plan_merge(self):
1500
my_knit = self.make_test_knit(annotate=True)
1501
my_knit.add_lines('text1', [], split_lines(TEXT_1))
1502
my_knit.add_lines('text1a', ['text1'], split_lines(TEXT_1A))
1503
my_knit.add_lines('text1b', ['text1'], split_lines(TEXT_1B))
1504
plan = list(my_knit.plan_merge('text1a', 'text1b'))
1505
for plan_line, expected_line in zip(plan, AB_MERGE):
1506
self.assertEqual(plan_line, expected_line)
1508
def test_get_stream_empty(self):
1509
"""Get a data stream for an empty knit file."""
1510
k1 = self.make_test_knit()
1511
format, data_list, reader_callable = k1.get_data_stream([])
1512
self.assertEqual('knit-plain', format)
1513
self.assertEqual([], data_list)
1514
content = reader_callable(None)
1515
self.assertEqual('', content)
1516
self.assertIsInstance(content, str)
1518
def test_get_stream_one_version(self):
1519
"""Get a data stream for a single record out of a knit containing just
1522
k1 = self.make_test_knit()
1524
('text-a', [], TEXT_1),
1526
expected_data_list = [
1527
# version, options, length, parents
1528
('text-a', ['fulltext'], 122, ()),
1530
for version_id, parents, lines in test_data:
1531
k1.add_lines(version_id, parents, split_lines(lines))
1533
format, data_list, reader_callable = k1.get_data_stream(['text-a'])
1534
self.assertEqual('knit-plain', format)
1535
self.assertEqual(expected_data_list, data_list)
1536
# There's only one record in the knit, so the content should be the
1537
# entire knit data file's contents.
1538
self.assertEqual(k1.transport.get_bytes(k1._data._access._filename),
1539
reader_callable(None))
1541
def test_get_stream_get_one_version_of_many(self):
1542
"""Get a data stream for just one version out of a knit containing many
1545
k1 = self.make_test_knit()
1546
# Insert the same data as test_knit_join, as they seem to cover a range
1547
# of cases (no parents, one parent, multiple parents).
1549
('text-a', [], TEXT_1),
1550
('text-b', ['text-a'], TEXT_1),
1551
('text-c', [], TEXT_1),
1552
('text-d', ['text-c'], TEXT_1),
1553
('text-m', ['text-b', 'text-d'], TEXT_1),
1555
expected_data_list = [
1556
# version, options, length, parents
1557
('text-m', ['line-delta'], 84, ('text-b', 'text-d')),
1559
for version_id, parents, lines in test_data:
1560
k1.add_lines(version_id, parents, split_lines(lines))
1562
format, data_list, reader_callable = k1.get_data_stream(['text-m'])
1563
self.assertEqual('knit-plain', format)
1564
self.assertEqual(expected_data_list, data_list)
1565
self.assertRecordContentEqual(k1, 'text-m', reader_callable(None))
1567
def test_get_data_stream_unordered_index(self):
1568
"""Get a data stream when the knit index reports versions out of order.
1570
https://bugs.launchpad.net/bzr/+bug/164637
1572
k1 = self.make_test_knit()
1574
('text-a', [], TEXT_1),
1575
('text-b', ['text-a'], TEXT_1),
1576
('text-c', [], TEXT_1),
1577
('text-d', ['text-c'], TEXT_1),
1578
('text-m', ['text-b', 'text-d'], TEXT_1),
1580
for version_id, parents, lines in test_data:
1581
k1.add_lines(version_id, parents, split_lines(lines))
1582
# monkey-patch versions method to return out of order, as if coming
1583
# from multiple independently indexed packs
1584
original_versions = k1.versions
1585
k1.versions = lambda: reversed(original_versions())
1586
expected_data_list = [
1587
('text-a', ['fulltext'], 122, ()),
1588
('text-b', ['line-delta'], 84, ('text-a',))]
1589
# now check the fulltext is first and the delta second
1590
format, data_list, _ = k1.get_data_stream(['text-a', 'text-b'])
1591
self.assertEqual('knit-plain', format)
1592
self.assertEqual(expected_data_list, data_list)
1593
# and that's true if we ask for them in the opposite order too
1594
format, data_list, _ = k1.get_data_stream(['text-b', 'text-a'])
1595
self.assertEqual(expected_data_list, data_list)
1596
# also try requesting more versions
1597
format, data_list, _ = k1.get_data_stream([
1598
'text-m', 'text-b', 'text-a'])
1600
('text-a', ['fulltext'], 122, ()),
1601
('text-b', ['line-delta'], 84, ('text-a',)),
1602
('text-m', ['line-delta'], 84, ('text-b', 'text-d')),
1605
def test_get_stream_ghost_parent(self):
1606
"""Get a data stream for a version with a ghost parent."""
1607
k1 = self.make_test_knit()
1609
k1.add_lines('text-a', [], split_lines(TEXT_1))
1610
k1.add_lines_with_ghosts('text-b', ['text-a', 'text-ghost'],
1611
split_lines(TEXT_1))
1613
expected_data_list = [
1614
# version, options, length, parents
1615
('text-b', ['line-delta'], 84, ('text-a', 'text-ghost')),
1618
format, data_list, reader_callable = k1.get_data_stream(['text-b'])
1619
self.assertEqual('knit-plain', format)
1620
self.assertEqual(expected_data_list, data_list)
1621
self.assertRecordContentEqual(k1, 'text-b', reader_callable(None))
1623
def test_get_stream_get_multiple_records(self):
1624
"""Get a stream for multiple records of a knit."""
1625
k1 = self.make_test_knit()
1626
# Insert the same data as test_knit_join, as they seem to cover a range
1627
# of cases (no parents, one parent, multiple parents).
1629
('text-a', [], TEXT_1),
1630
('text-b', ['text-a'], TEXT_1),
1631
('text-c', [], TEXT_1),
1632
('text-d', ['text-c'], TEXT_1),
1633
('text-m', ['text-b', 'text-d'], TEXT_1),
1635
for version_id, parents, lines in test_data:
1636
k1.add_lines(version_id, parents, split_lines(lines))
1638
# This test is actually a bit strict as the order in which they're
1639
# returned is not defined. This matches the current (deterministic)
1641
expected_data_list = [
1642
# version, options, length, parents
1643
('text-d', ['line-delta'], 84, ('text-c',)),
1644
('text-b', ['line-delta'], 84, ('text-a',)),
1646
# Note that even though we request the revision IDs in a particular
1647
# order, the data stream may return them in any order it likes. In this
1648
# case, they'll be in the order they were inserted into the knit.
1649
format, data_list, reader_callable = k1.get_data_stream(
1650
['text-d', 'text-b'])
1651
self.assertEqual('knit-plain', format)
1652
self.assertEqual(expected_data_list, data_list)
1653
# must match order they're returned
1654
self.assertRecordContentEqual(k1, 'text-d', reader_callable(84))
1655
self.assertRecordContentEqual(k1, 'text-b', reader_callable(84))
1656
self.assertEqual('', reader_callable(None),
1657
"There should be no more bytes left to read.")
1659
def test_get_stream_all(self):
1660
"""Get a data stream for all the records in a knit.
1662
This exercises fulltext records, line-delta records, records with
1663
various numbers of parents, and reading multiple records out of the
1664
callable. These cases ought to all be exercised individually by the
1665
other test_get_stream_* tests; this test is basically just paranoia.
1667
k1 = self.make_test_knit()
1668
# Insert the same data as test_knit_join, as they seem to cover a range
1669
# of cases (no parents, one parent, multiple parents).
1671
('text-a', [], TEXT_1),
1672
('text-b', ['text-a'], TEXT_1),
1673
('text-c', [], TEXT_1),
1674
('text-d', ['text-c'], TEXT_1),
1675
('text-m', ['text-b', 'text-d'], TEXT_1),
1677
for version_id, parents, lines in test_data:
1678
k1.add_lines(version_id, parents, split_lines(lines))
1680
# This test is actually a bit strict as the order in which they're
1681
# returned is not defined. This matches the current (deterministic)
1683
expected_data_list = [
1684
# version, options, length, parents
1685
('text-a', ['fulltext'], 122, ()),
1686
('text-b', ['line-delta'], 84, ('text-a',)),
1687
('text-m', ['line-delta'], 84, ('text-b', 'text-d')),
1688
('text-c', ['fulltext'], 121, ()),
1689
('text-d', ['line-delta'], 84, ('text-c',)),
1691
format, data_list, reader_callable = k1.get_data_stream(
1692
['text-a', 'text-b', 'text-c', 'text-d', 'text-m'])
1693
self.assertEqual('knit-plain', format)
1694
self.assertEqual(expected_data_list, data_list)
1695
for version_id, options, length, parents in expected_data_list:
1696
bytes = reader_callable(length)
1697
self.assertRecordContentEqual(k1, version_id, bytes)
1699
def assertKnitFilesEqual(self, knit1, knit2):
1700
"""Assert that the contents of the index and data files of two knits are
1704
knit1.transport.get_bytes(knit1._data._access._filename),
1705
knit2.transport.get_bytes(knit2._data._access._filename))
1707
knit1.transport.get_bytes(knit1._index._filename),
1708
knit2.transport.get_bytes(knit2._index._filename))
1710
def assertKnitValuesEqual(self, left, right):
1711
"""Assert that the texts, annotations and graph of left and right are
1714
self.assertEqual(set(left.versions()), set(right.versions()))
1715
for version in left.versions():
1716
self.assertEqual(left.get_parents_with_ghosts(version),
1717
right.get_parents_with_ghosts(version))
1718
self.assertEqual(left.get_lines(version),
1719
right.get_lines(version))
1720
self.assertEqual(left.annotate(version),
1721
right.annotate(version))
1723
def test_insert_data_stream_empty(self):
1724
"""Inserting a data stream with no records should not put any data into
1727
k1 = self.make_test_knit()
1728
k1.insert_data_stream(
1729
(k1.get_format_signature(), [], lambda ignored: ''))
1730
self.assertEqual('', k1.transport.get_bytes(k1._data._access._filename),
1731
"The .knit should be completely empty.")
1732
self.assertEqual(k1._index.HEADER,
1733
k1.transport.get_bytes(k1._index._filename),
1734
"The .kndx should have nothing apart from the header.")
1736
def test_insert_data_stream_one_record(self):
1737
"""Inserting a data stream with one record from a knit with one record
1738
results in byte-identical files.
1740
source = self.make_test_knit(name='source')
1741
source.add_lines('text-a', [], split_lines(TEXT_1))
1742
data_stream = source.get_data_stream(['text-a'])
1743
target = self.make_test_knit(name='target')
1744
target.insert_data_stream(data_stream)
1745
self.assertKnitFilesEqual(source, target)
1747
def test_insert_data_stream_annotated_unannotated(self):
1748
"""Inserting an annotated datastream to an unannotated knit works."""
1749
# case one - full texts.
1750
source = self.make_test_knit(name='source', annotate=True)
1751
target = self.make_test_knit(name='target', annotate=False)
1752
source.add_lines('text-a', [], split_lines(TEXT_1))
1753
target.insert_data_stream(source.get_data_stream(['text-a']))
1754
self.assertKnitValuesEqual(source, target)
1755
# case two - deltas.
1756
source.add_lines('text-b', ['text-a'], split_lines(TEXT_2))
1757
target.insert_data_stream(source.get_data_stream(['text-b']))
1758
self.assertKnitValuesEqual(source, target)
1760
def test_insert_data_stream_unannotated_annotated(self):
1761
"""Inserting an unannotated datastream to an annotated knit works."""
1762
# case one - full texts.
1763
source = self.make_test_knit(name='source', annotate=False)
1764
target = self.make_test_knit(name='target', annotate=True)
1765
source.add_lines('text-a', [], split_lines(TEXT_1))
1766
target.insert_data_stream(source.get_data_stream(['text-a']))
1767
self.assertKnitValuesEqual(source, target)
1768
# case two - deltas.
1769
source.add_lines('text-b', ['text-a'], split_lines(TEXT_2))
1770
target.insert_data_stream(source.get_data_stream(['text-b']))
1771
self.assertKnitValuesEqual(source, target)
1773
def test_insert_data_stream_records_already_present(self):
1774
"""Insert a data stream where some records are alreday present in the
1775
target, and some not. Only the new records are inserted.
1777
source = self.make_test_knit(name='source')
1778
target = self.make_test_knit(name='target')
1779
# Insert 'text-a' into both source and target
1780
source.add_lines('text-a', [], split_lines(TEXT_1))
1781
target.insert_data_stream(source.get_data_stream(['text-a']))
1782
# Insert 'text-b' into just the source.
1783
source.add_lines('text-b', ['text-a'], split_lines(TEXT_1))
1784
# Get a data stream of both text-a and text-b, and insert it.
1785
data_stream = source.get_data_stream(['text-a', 'text-b'])
1786
target.insert_data_stream(data_stream)
1787
# The source and target will now be identical. This means the text-a
1788
# record was not added a second time.
1789
self.assertKnitFilesEqual(source, target)
1791
def test_insert_data_stream_multiple_records(self):
1792
"""Inserting a data stream of all records from a knit with multiple
1793
records results in byte-identical files.
1795
source = self.make_test_knit(name='source')
1796
source.add_lines('text-a', [], split_lines(TEXT_1))
1797
source.add_lines('text-b', ['text-a'], split_lines(TEXT_1))
1798
source.add_lines('text-c', [], split_lines(TEXT_1))
1799
data_stream = source.get_data_stream(['text-a', 'text-b', 'text-c'])
1801
target = self.make_test_knit(name='target')
1802
target.insert_data_stream(data_stream)
1804
self.assertKnitFilesEqual(source, target)
1806
def test_insert_data_stream_ghost_parent(self):
1807
"""Insert a data stream with a record that has a ghost parent."""
1808
# Make a knit with a record, text-a, that has a ghost parent.
1809
source = self.make_test_knit(name='source')
1810
source.add_lines_with_ghosts('text-a', ['text-ghost'],
1811
split_lines(TEXT_1))
1812
data_stream = source.get_data_stream(['text-a'])
1814
target = self.make_test_knit(name='target')
1815
target.insert_data_stream(data_stream)
1817
self.assertKnitFilesEqual(source, target)
1819
# The target knit object is in a consistent state, i.e. the record we
1820
# just added is immediately visible.
1821
self.assertTrue(target.has_version('text-a'))
1822
self.assertFalse(target.has_version('text-ghost'))
1823
self.assertEqual({'text-a':('text-ghost',)},
1824
target.get_parent_map(['text-a', 'text-ghost']))
1825
self.assertEqual(split_lines(TEXT_1), target.get_lines('text-a'))
1827
def test_insert_data_stream_inconsistent_version_lines(self):
1828
"""Inserting a data stream which has different content for a version_id
1829
than already exists in the knit will raise KnitCorrupt.
1831
source = self.make_test_knit(name='source')
1832
target = self.make_test_knit(name='target')
1833
# Insert a different 'text-a' into both source and target
1834
source.add_lines('text-a', [], split_lines(TEXT_1))
1835
target.add_lines('text-a', [], split_lines(TEXT_2))
1836
# Insert a data stream with conflicting content into the target
1837
data_stream = source.get_data_stream(['text-a'])
1839
errors.KnitCorrupt, target.insert_data_stream, data_stream)
1841
def test_insert_data_stream_inconsistent_version_parents(self):
1842
"""Inserting a data stream which has different parents for a version_id
1843
than already exists in the knit will raise KnitCorrupt.
1845
source = self.make_test_knit(name='source')
1846
target = self.make_test_knit(name='target')
1847
# Insert a different 'text-a' into both source and target. They differ
1848
# only by the parents list, the content is the same.
1849
source.add_lines_with_ghosts('text-a', [], split_lines(TEXT_1))
1850
target.add_lines_with_ghosts('text-a', ['a-ghost'], split_lines(TEXT_1))
1851
# Insert a data stream with conflicting content into the target
1852
data_stream = source.get_data_stream(['text-a'])
1854
errors.KnitCorrupt, target.insert_data_stream, data_stream)
1856
def test_insert_data_stream_unknown_format(self):
1857
"""A data stream in a different format to the target knit cannot be
1860
It will raise KnitDataStreamUnknown because the fallback code will fail
1861
to make a knit. In future we may need KnitDataStreamIncompatible again,
1862
for more exotic cases.
1864
data_stream = ('fake-format-signature', [], lambda _: '')
1865
target = self.make_test_knit(name='target')
1867
errors.KnitDataStreamUnknown,
1868
target.insert_data_stream, data_stream)
1870
def test_insert_data_stream_bug_208418(self):
1871
"""You can insert a stream with an incompatible format, even when:
1872
* the stream has a line-delta record,
1873
* whose parent is in the target, also stored as a line-delta
1875
See <https://launchpad.net/bugs/208418>.
1877
base_lines = split_lines(TEXT_1)
1879
target = self.make_test_knit(name='target', annotate=True)
1880
target.add_lines('version-1', [], base_lines)
1881
target.add_lines('version-2', ['version-1'], base_lines + ['a\n'])
1882
# The second record should be a delta.
1883
self.assertEqual('line-delta', target._index.get_method('version-2'))
1885
# Make a source, with a different format, but the same data
1886
source = self.make_test_knit(name='source', annotate=False)
1887
source.add_lines('version-1', [], base_lines)
1888
source.add_lines('version-2', ['version-1'], base_lines + ['a\n'])
1889
# Now add another record, which should be stored as a delta against
1891
source.add_lines('version-3', ['version-2'], base_lines + ['b\n'])
1892
self.assertEqual('line-delta', source._index.get_method('version-3'))
1894
# Make a stream of the new version
1895
data_stream = source.get_data_stream(['version-3'])
1896
# And insert into the target
1897
target.insert_data_stream(data_stream)
1898
# No errors should have been raised.
1901
# * test that a stream of "already present version, then new version"
1902
# inserts correctly.
1905
def assertMadeStreamKnit(self, source_knit, versions, target_knit):
1906
"""Assert that a knit made from a stream is as expected."""
1907
a_stream = source_knit.get_data_stream(versions)
1908
expected_data = a_stream[2](None)
1909
a_stream = source_knit.get_data_stream(versions)
1910
a_knit = target_knit._knit_from_datastream(a_stream)
1911
self.assertEqual(source_knit.factory.__class__,
1912
a_knit.factory.__class__)
1913
self.assertIsInstance(a_knit._data._access, _StreamAccess)
1914
self.assertIsInstance(a_knit._index, _StreamIndex)
1915
self.assertEqual(a_knit._index.data_list, a_stream[1])
1916
self.assertEqual(a_knit._data._access.data, expected_data)
1917
self.assertEqual(a_knit.filename, target_knit.filename)
1918
self.assertEqual(a_knit.transport, target_knit.transport)
1919
self.assertEqual(a_knit._index, a_knit._data._access.stream_index)
1920
self.assertEqual(target_knit, a_knit._data._access.backing_knit)
1921
self.assertIsInstance(a_knit._data._access.orig_factory,
1922
source_knit.factory.__class__)
1924
def test__knit_from_data_stream_empty(self):
1925
"""Create a knit object from a datastream."""
1926
annotated = self.make_test_knit(name='source', annotate=True)
1927
plain = self.make_test_knit(name='target', annotate=False)
1928
# case 1: annotated source
1929
self.assertMadeStreamKnit(annotated, [], annotated)
1930
self.assertMadeStreamKnit(annotated, [], plain)
1931
# case 2: plain source
1932
self.assertMadeStreamKnit(plain, [], annotated)
1933
self.assertMadeStreamKnit(plain, [], plain)
1935
def test__knit_from_data_stream_unknown_format(self):
1936
annotated = self.make_test_knit(name='source', annotate=True)
1937
self.assertRaises(errors.KnitDataStreamUnknown,
1938
annotated._knit_from_datastream, ("unknown", None, None))
1950
Banana cup cake recipe
1956
- self-raising flour
1960
Banana cup cake recipe
1962
- bananas (do not use plantains!!!)
1969
Banana cup cake recipe
1972
- self-raising flour
1985
AB_MERGE_TEXT="""unchanged|Banana cup cake recipe
1990
new-b|- bananas (do not use plantains!!!)
1991
unchanged|- broken tea cups
1992
new-a|- self-raising flour
1995
AB_MERGE=[tuple(l.split('|')) for l in AB_MERGE_TEXT.splitlines(True)]
1998
def line_delta(from_lines, to_lines):
1999
"""Generate line-based delta from one text to another"""
2000
s = difflib.SequenceMatcher(None, from_lines, to_lines)
2001
for op in s.get_opcodes():
2002
if op[0] == 'equal':
2004
yield '%d,%d,%d\n' % (op[1], op[2], op[4]-op[3])
2005
for i in range(op[3], op[4]):
2009
def apply_line_delta(basis_lines, delta_lines):
2010
"""Apply a line-based perfect diff
2012
basis_lines -- text to apply the patch to
2013
delta_lines -- diff instructions and content
2015
out = basis_lines[:]
2018
while i < len(delta_lines):
2020
a, b, c = map(long, l.split(','))
2022
out[offset+a:offset+b] = delta_lines[i:i+c]
2024
offset = offset + (b - a) + c
2028
class TestWeaveToKnit(KnitTests):
2030
def test_weave_to_knit_matches(self):
2031
# check that the WeaveToKnit is_compatible function
2032
# registers True for a Weave to a Knit.
2033
w = Weave(get_scope=lambda:None)
2034
k = self.make_test_knit()
2035
self.failUnless(WeaveToKnit.is_compatible(w, k))
2036
self.failIf(WeaveToKnit.is_compatible(k, w))
2037
self.failIf(WeaveToKnit.is_compatible(w, w))
2038
self.failIf(WeaveToKnit.is_compatible(k, k))
2041
class TestKnitIndex(KnitTests):
2043
def test_add_versions_dictionary_compresses(self):
2044
"""Adding versions to the index should update the lookup dict"""
2045
knit = self.make_test_knit()
2047
idx.add_version('a-1', ['fulltext'], (None, 0, 0), [])
2048
self.check_file_contents('test.kndx',
2049
'# bzr knit index 8\n'
2051
'a-1 fulltext 0 0 :'
2053
idx.add_versions([('a-2', ['fulltext'], (None, 0, 0), ['a-1']),
2054
('a-3', ['fulltext'], (None, 0, 0), ['a-2']),
2056
self.check_file_contents('test.kndx',
2057
'# bzr knit index 8\n'
2059
'a-1 fulltext 0 0 :\n'
2060
'a-2 fulltext 0 0 0 :\n'
2061
'a-3 fulltext 0 0 1 :'
2063
self.assertEqual(['a-1', 'a-2', 'a-3'], idx._history)
2064
self.assertEqual({'a-1':('a-1', ['fulltext'], 0, 0, (), 0),
2065
'a-2':('a-2', ['fulltext'], 0, 0, ('a-1',), 1),
2066
'a-3':('a-3', ['fulltext'], 0, 0, ('a-2',), 2),
2069
def test_add_versions_fails_clean(self):
2070
"""If add_versions fails in the middle, it restores a pristine state.
2072
Any modifications that are made to the index are reset if all versions
2075
# This cheats a little bit by passing in a generator which will
2076
# raise an exception before the processing finishes
2077
# Other possibilities would be to have an version with the wrong number
2078
# of entries, or to make the backing transport unable to write any
2081
knit = self.make_test_knit()
2083
idx.add_version('a-1', ['fulltext'], (None, 0, 0), [])
2085
class StopEarly(Exception):
2088
def generate_failure():
2089
"""Add some entries and then raise an exception"""
2090
yield ('a-2', ['fulltext'], (None, 0, 0), ('a-1',))
2091
yield ('a-3', ['fulltext'], (None, 0, 0), ('a-2',))
2094
# Assert the pre-condition
2095
self.assertEqual(['a-1'], idx._history)
2096
self.assertEqual({'a-1':('a-1', ['fulltext'], 0, 0, (), 0)}, idx._cache)
2098
self.assertRaises(StopEarly, idx.add_versions, generate_failure())
2100
# And it shouldn't be modified
2101
self.assertEqual(['a-1'], idx._history)
2102
self.assertEqual({'a-1':('a-1', ['fulltext'], 0, 0, (), 0)}, idx._cache)
2104
def test_knit_index_ignores_empty_files(self):
2105
# There was a race condition in older bzr, where a ^C at the right time
2106
# could leave an empty .kndx file, which bzr would later claim was a
2107
# corrupted file since the header was not present. In reality, the file
2108
# just wasn't created, so it should be ignored.
2109
t = get_transport('.')
2110
t.put_bytes('test.kndx', '')
2112
knit = self.make_test_knit()
2114
def test_knit_index_checks_header(self):
2115
t = get_transport('.')
2116
t.put_bytes('test.kndx', '# not really a knit header\n\n')
2118
self.assertRaises(KnitHeaderError, self.make_test_knit)
2121
class TestGraphIndexKnit(KnitTests):
2122
"""Tests for knits using a GraphIndex rather than a KnitIndex."""
2124
def make_g_index(self, name, ref_lists=0, nodes=[]):
2125
builder = GraphIndexBuilder(ref_lists)
2126
for node, references, value in nodes:
2127
builder.add_node(node, references, value)
2128
stream = builder.finish()
2129
trans = self.get_transport()
2130
size = trans.put_file(name, stream)
2131
return GraphIndex(trans, name, size)
2133
def two_graph_index(self, deltas=False, catch_adds=False):
2134
"""Build a two-graph index.
2136
:param deltas: If true, use underlying indices with two node-ref
2137
lists and 'parent' set to a delta-compressed against tail.
2139
# build a complex graph across several indices.
2141
# delta compression inn the index
2142
index1 = self.make_g_index('1', 2, [
2143
(('tip', ), 'N0 100', ([('parent', )], [], )),
2144
(('tail', ), '', ([], []))])
2145
index2 = self.make_g_index('2', 2, [
2146
(('parent', ), ' 100 78', ([('tail', ), ('ghost', )], [('tail', )])),
2147
(('separate', ), '', ([], []))])
2149
# just blob location and graph in the index.
2150
index1 = self.make_g_index('1', 1, [
2151
(('tip', ), 'N0 100', ([('parent', )], )),
2152
(('tail', ), '', ([], ))])
2153
index2 = self.make_g_index('2', 1, [
2154
(('parent', ), ' 100 78', ([('tail', ), ('ghost', )], )),
2155
(('separate', ), '', ([], ))])
2156
combined_index = CombinedGraphIndex([index1, index2])
2158
self.combined_index = combined_index
2159
self.caught_entries = []
2160
add_callback = self.catch_add
2163
return KnitGraphIndex(combined_index, deltas=deltas,
2164
add_callback=add_callback)
2166
def test_get_ancestry(self):
2167
# get_ancestry is defined as eliding ghosts, not erroring.
2168
index = self.two_graph_index()
2169
self.assertEqual([], index.get_ancestry([]))
2170
self.assertEqual(['separate'], index.get_ancestry(['separate']))
2171
self.assertEqual(['tail'], index.get_ancestry(['tail']))
2172
self.assertEqual(['tail', 'parent'], index.get_ancestry(['parent']))
2173
self.assertEqual(['tail', 'parent', 'tip'], index.get_ancestry(['tip']))
2174
self.assertTrue(index.get_ancestry(['tip', 'separate']) in
2175
(['tail', 'parent', 'tip', 'separate'],
2176
['separate', 'tail', 'parent', 'tip'],
2178
# and without topo_sort
2179
self.assertEqual(set(['separate']),
2180
set(index.get_ancestry(['separate'], topo_sorted=False)))
2181
self.assertEqual(set(['tail']),
2182
set(index.get_ancestry(['tail'], topo_sorted=False)))
2183
self.assertEqual(set(['tail', 'parent']),
2184
set(index.get_ancestry(['parent'], topo_sorted=False)))
2185
self.assertEqual(set(['tail', 'parent', 'tip']),
2186
set(index.get_ancestry(['tip'], topo_sorted=False)))
2187
self.assertEqual(set(['separate', 'tail', 'parent', 'tip']),
2188
set(index.get_ancestry(['tip', 'separate'])))
2189
# asking for a ghost makes it go boom.
2190
self.assertRaises(errors.RevisionNotPresent, index.get_ancestry, ['ghost'])
2192
def test_get_ancestry_with_ghosts(self):
2193
index = self.two_graph_index()
2194
self.assertEqual([], index.get_ancestry_with_ghosts([]))
2195
self.assertEqual(['separate'], index.get_ancestry_with_ghosts(['separate']))
2196
self.assertEqual(['tail'], index.get_ancestry_with_ghosts(['tail']))
2197
self.assertTrue(index.get_ancestry_with_ghosts(['parent']) in
2198
(['tail', 'ghost', 'parent'],
2199
['ghost', 'tail', 'parent'],
2201
self.assertTrue(index.get_ancestry_with_ghosts(['tip']) in
2202
(['tail', 'ghost', 'parent', 'tip'],
2203
['ghost', 'tail', 'parent', 'tip'],
2205
self.assertTrue(index.get_ancestry_with_ghosts(['tip', 'separate']) in
2206
(['tail', 'ghost', 'parent', 'tip', 'separate'],
2207
['ghost', 'tail', 'parent', 'tip', 'separate'],
2208
['separate', 'tail', 'ghost', 'parent', 'tip'],
2209
['separate', 'ghost', 'tail', 'parent', 'tip'],
2211
# asking for a ghost makes it go boom.
2212
self.assertRaises(errors.RevisionNotPresent, index.get_ancestry_with_ghosts, ['ghost'])
2214
def test_num_versions(self):
2215
index = self.two_graph_index()
2216
self.assertEqual(4, index.num_versions())
2218
def test_get_versions(self):
2219
index = self.two_graph_index()
2220
self.assertEqual(set(['tail', 'tip', 'parent', 'separate']),
2221
set(index.get_versions()))
2223
def test_has_version(self):
2224
index = self.two_graph_index()
2225
self.assertTrue(index.has_version('tail'))
2226
self.assertFalse(index.has_version('ghost'))
2228
def test_get_position(self):
2229
index = self.two_graph_index()
2230
self.assertEqual((index._graph_index._indices[0], 0, 100), index.get_position('tip'))
2231
self.assertEqual((index._graph_index._indices[1], 100, 78), index.get_position('parent'))
2233
def test_get_method_deltas(self):
2234
index = self.two_graph_index(deltas=True)
2235
self.assertEqual('fulltext', index.get_method('tip'))
2236
self.assertEqual('line-delta', index.get_method('parent'))
2238
def test_get_method_no_deltas(self):
2239
# check that the parent-history lookup is ignored with deltas=False.
2240
index = self.two_graph_index(deltas=False)
2241
self.assertEqual('fulltext', index.get_method('tip'))
2242
self.assertEqual('fulltext', index.get_method('parent'))
2244
def test_get_options_deltas(self):
2245
index = self.two_graph_index(deltas=True)
2246
self.assertEqual(['fulltext', 'no-eol'], index.get_options('tip'))
2247
self.assertEqual(['line-delta'], index.get_options('parent'))
2249
def test_get_options_no_deltas(self):
2250
# check that the parent-history lookup is ignored with deltas=False.
2251
index = self.two_graph_index(deltas=False)
2252
self.assertEqual(['fulltext', 'no-eol'], index.get_options('tip'))
2253
self.assertEqual(['fulltext'], index.get_options('parent'))
2255
def test_get_parents_with_ghosts(self):
2256
index = self.two_graph_index()
2257
self.assertEqual(('tail', 'ghost'), index.get_parents_with_ghosts('parent'))
2258
# and errors on ghosts.
2259
self.assertRaises(errors.RevisionNotPresent,
2260
index.get_parents_with_ghosts, 'ghost')
2262
def test_check_versions_present(self):
2263
# ghosts should not be considered present
2264
index = self.two_graph_index()
2265
self.assertRaises(RevisionNotPresent, index.check_versions_present,
2267
self.assertRaises(RevisionNotPresent, index.check_versions_present,
2269
index.check_versions_present(['tail', 'separate'])
2271
def catch_add(self, entries):
2272
self.caught_entries.append(entries)
2274
def test_add_no_callback_errors(self):
2275
index = self.two_graph_index()
2276
self.assertRaises(errors.ReadOnlyError, index.add_version,
2277
'new', 'fulltext,no-eol', (None, 50, 60), ['separate'])
2279
def test_add_version_smoke(self):
2280
index = self.two_graph_index(catch_adds=True)
2281
index.add_version('new', 'fulltext,no-eol', (None, 50, 60), ['separate'])
2282
self.assertEqual([[(('new', ), 'N50 60', ((('separate',),),))]],
2283
self.caught_entries)
2285
def test_add_version_delta_not_delta_index(self):
2286
index = self.two_graph_index(catch_adds=True)
2287
self.assertRaises(errors.KnitCorrupt, index.add_version,
2288
'new', 'no-eol,line-delta', (None, 0, 100), ['parent'])
2289
self.assertEqual([], self.caught_entries)
2291
def test_add_version_same_dup(self):
2292
index = self.two_graph_index(catch_adds=True)
2293
# options can be spelt two different ways
2294
index.add_version('tip', 'fulltext,no-eol', (None, 0, 100), ['parent'])
2295
index.add_version('tip', 'no-eol,fulltext', (None, 0, 100), ['parent'])
2296
# but neither should have added data.
2297
self.assertEqual([[], []], self.caught_entries)
2299
def test_add_version_different_dup(self):
2300
index = self.two_graph_index(deltas=True, catch_adds=True)
2302
self.assertRaises(errors.KnitCorrupt, index.add_version,
2303
'tip', 'no-eol,line-delta', (None, 0, 100), ['parent'])
2304
self.assertRaises(errors.KnitCorrupt, index.add_version,
2305
'tip', 'line-delta,no-eol', (None, 0, 100), ['parent'])
2306
self.assertRaises(errors.KnitCorrupt, index.add_version,
2307
'tip', 'fulltext', (None, 0, 100), ['parent'])
2309
self.assertRaises(errors.KnitCorrupt, index.add_version,
2310
'tip', 'fulltext,no-eol', (None, 50, 100), ['parent'])
2311
self.assertRaises(errors.KnitCorrupt, index.add_version,
2312
'tip', 'fulltext,no-eol', (None, 0, 1000), ['parent'])
2314
self.assertRaises(errors.KnitCorrupt, index.add_version,
2315
'tip', 'fulltext,no-eol', (None, 0, 100), [])
2316
self.assertEqual([], self.caught_entries)
2318
def test_add_versions_nodeltas(self):
2319
index = self.two_graph_index(catch_adds=True)
2320
index.add_versions([
2321
('new', 'fulltext,no-eol', (None, 50, 60), ['separate']),
2322
('new2', 'fulltext', (None, 0, 6), ['new']),
2324
self.assertEqual([(('new', ), 'N50 60', ((('separate',),),)),
2325
(('new2', ), ' 0 6', ((('new',),),))],
2326
sorted(self.caught_entries[0]))
2327
self.assertEqual(1, len(self.caught_entries))
2329
def test_add_versions_deltas(self):
2330
index = self.two_graph_index(deltas=True, catch_adds=True)
2331
index.add_versions([
2332
('new', 'fulltext,no-eol', (None, 50, 60), ['separate']),
2333
('new2', 'line-delta', (None, 0, 6), ['new']),
2335
self.assertEqual([(('new', ), 'N50 60', ((('separate',),), ())),
2336
(('new2', ), ' 0 6', ((('new',),), (('new',),), ))],
2337
sorted(self.caught_entries[0]))
2338
self.assertEqual(1, len(self.caught_entries))
2340
def test_add_versions_delta_not_delta_index(self):
2341
index = self.two_graph_index(catch_adds=True)
2342
self.assertRaises(errors.KnitCorrupt, index.add_versions,
2343
[('new', 'no-eol,line-delta', (None, 0, 100), ['parent'])])
2344
self.assertEqual([], self.caught_entries)
2346
def test_add_versions_random_id_accepted(self):
2347
index = self.two_graph_index(catch_adds=True)
2348
index.add_versions([], random_id=True)
2350
def test_add_versions_same_dup(self):
2351
index = self.two_graph_index(catch_adds=True)
2352
# options can be spelt two different ways
2353
index.add_versions([('tip', 'fulltext,no-eol', (None, 0, 100), ['parent'])])
2354
index.add_versions([('tip', 'no-eol,fulltext', (None, 0, 100), ['parent'])])
2355
# but neither should have added data.
2356
self.assertEqual([[], []], self.caught_entries)
2358
def test_add_versions_different_dup(self):
2359
index = self.two_graph_index(deltas=True, catch_adds=True)
2361
self.assertRaises(errors.KnitCorrupt, index.add_versions,
2362
[('tip', 'no-eol,line-delta', (None, 0, 100), ['parent'])])
2363
self.assertRaises(errors.KnitCorrupt, index.add_versions,
2364
[('tip', 'line-delta,no-eol', (None, 0, 100), ['parent'])])
2365
self.assertRaises(errors.KnitCorrupt, index.add_versions,
2366
[('tip', 'fulltext', (None, 0, 100), ['parent'])])
2368
self.assertRaises(errors.KnitCorrupt, index.add_versions,
2369
[('tip', 'fulltext,no-eol', (None, 50, 100), ['parent'])])
2370
self.assertRaises(errors.KnitCorrupt, index.add_versions,
2371
[('tip', 'fulltext,no-eol', (None, 0, 1000), ['parent'])])
2373
self.assertRaises(errors.KnitCorrupt, index.add_versions,
2374
[('tip', 'fulltext,no-eol', (None, 0, 100), [])])
2375
# change options in the second record
2376
self.assertRaises(errors.KnitCorrupt, index.add_versions,
2377
[('tip', 'fulltext,no-eol', (None, 0, 100), ['parent']),
2378
('tip', 'no-eol,line-delta', (None, 0, 100), ['parent'])])
2379
self.assertEqual([], self.caught_entries)
2381
class TestNoParentsGraphIndexKnit(KnitTests):
2382
"""Tests for knits using KnitGraphIndex with no parents."""
2384
def make_g_index(self, name, ref_lists=0, nodes=[]):
2385
builder = GraphIndexBuilder(ref_lists)
2386
for node, references in nodes:
2387
builder.add_node(node, references)
2388
stream = builder.finish()
2389
trans = self.get_transport()
2390
size = trans.put_file(name, stream)
2391
return GraphIndex(trans, name, size)
2393
def test_parents_deltas_incompatible(self):
2394
index = CombinedGraphIndex([])
2395
self.assertRaises(errors.KnitError, KnitGraphIndex, index,
2396
deltas=True, parents=False)
2398
def two_graph_index(self, catch_adds=False):
2399
"""Build a two-graph index.
2401
:param deltas: If true, use underlying indices with two node-ref
2402
lists and 'parent' set to a delta-compressed against tail.
2404
# put several versions in the index.
2405
index1 = self.make_g_index('1', 0, [
2406
(('tip', ), 'N0 100'),
2408
index2 = self.make_g_index('2', 0, [
2409
(('parent', ), ' 100 78'),
2410
(('separate', ), '')])
2411
combined_index = CombinedGraphIndex([index1, index2])
2413
self.combined_index = combined_index
2414
self.caught_entries = []
2415
add_callback = self.catch_add
2418
return KnitGraphIndex(combined_index, parents=False,
2419
add_callback=add_callback)
2421
def test_get_ancestry(self):
2422
# with no parents, ancestry is always just the key.
2423
index = self.two_graph_index()
2424
self.assertEqual([], index.get_ancestry([]))
2425
self.assertEqual(['separate'], index.get_ancestry(['separate']))
2426
self.assertEqual(['tail'], index.get_ancestry(['tail']))
2427
self.assertEqual(['parent'], index.get_ancestry(['parent']))
2428
self.assertEqual(['tip'], index.get_ancestry(['tip']))
2429
self.assertTrue(index.get_ancestry(['tip', 'separate']) in
2430
(['tip', 'separate'],
2431
['separate', 'tip'],
2433
# asking for a ghost makes it go boom.
2434
self.assertRaises(errors.RevisionNotPresent, index.get_ancestry, ['ghost'])
2436
def test_get_ancestry_with_ghosts(self):
2437
index = self.two_graph_index()
2438
self.assertEqual([], index.get_ancestry_with_ghosts([]))
2439
self.assertEqual(['separate'], index.get_ancestry_with_ghosts(['separate']))
2440
self.assertEqual(['tail'], index.get_ancestry_with_ghosts(['tail']))
2441
self.assertEqual(['parent'], index.get_ancestry_with_ghosts(['parent']))
2442
self.assertEqual(['tip'], index.get_ancestry_with_ghosts(['tip']))
2443
self.assertTrue(index.get_ancestry_with_ghosts(['tip', 'separate']) in
2444
(['tip', 'separate'],
2445
['separate', 'tip'],
2447
# asking for a ghost makes it go boom.
2448
self.assertRaises(errors.RevisionNotPresent, index.get_ancestry_with_ghosts, ['ghost'])
2450
def test_num_versions(self):
2451
index = self.two_graph_index()
2452
self.assertEqual(4, index.num_versions())
2454
def test_get_versions(self):
2455
index = self.two_graph_index()
2456
self.assertEqual(set(['tail', 'tip', 'parent', 'separate']),
2457
set(index.get_versions()))
2459
def test_has_version(self):
2460
index = self.two_graph_index()
2461
self.assertTrue(index.has_version('tail'))
2462
self.assertFalse(index.has_version('ghost'))
2464
def test_get_position(self):
2465
index = self.two_graph_index()
2466
self.assertEqual((index._graph_index._indices[0], 0, 100), index.get_position('tip'))
2467
self.assertEqual((index._graph_index._indices[1], 100, 78), index.get_position('parent'))
2469
def test_get_method(self):
2470
index = self.two_graph_index()
2471
self.assertEqual('fulltext', index.get_method('tip'))
2472
self.assertEqual(['fulltext'], index.get_options('parent'))
2474
def test_get_options(self):
2475
index = self.two_graph_index()
2476
self.assertEqual(['fulltext', 'no-eol'], index.get_options('tip'))
2477
self.assertEqual(['fulltext'], index.get_options('parent'))
2479
def test_get_parents_with_ghosts(self):
2480
index = self.two_graph_index()
2481
self.assertEqual((), index.get_parents_with_ghosts('parent'))
2482
# and errors on ghosts.
2483
self.assertRaises(errors.RevisionNotPresent,
2484
index.get_parents_with_ghosts, 'ghost')
2486
def test_check_versions_present(self):
2487
index = self.two_graph_index()
2488
self.assertRaises(RevisionNotPresent, index.check_versions_present,
2490
self.assertRaises(RevisionNotPresent, index.check_versions_present,
2491
['tail', 'missing'])
2492
index.check_versions_present(['tail', 'separate'])
2494
def catch_add(self, entries):
2495
self.caught_entries.append(entries)
2497
def test_add_no_callback_errors(self):
2498
index = self.two_graph_index()
2499
self.assertRaises(errors.ReadOnlyError, index.add_version,
2500
'new', 'fulltext,no-eol', (None, 50, 60), ['separate'])
2502
def test_add_version_smoke(self):
2503
index = self.two_graph_index(catch_adds=True)
2504
index.add_version('new', 'fulltext,no-eol', (None, 50, 60), [])
2505
self.assertEqual([[(('new', ), 'N50 60')]],
2506
self.caught_entries)
2508
def test_add_version_delta_not_delta_index(self):
2509
index = self.two_graph_index(catch_adds=True)
2510
self.assertRaises(errors.KnitCorrupt, index.add_version,
2511
'new', 'no-eol,line-delta', (None, 0, 100), [])
2512
self.assertEqual([], self.caught_entries)
2514
def test_add_version_same_dup(self):
2515
index = self.two_graph_index(catch_adds=True)
2516
# options can be spelt two different ways
2517
index.add_version('tip', 'fulltext,no-eol', (None, 0, 100), [])
2518
index.add_version('tip', 'no-eol,fulltext', (None, 0, 100), [])
2519
# but neither should have added data.
2520
self.assertEqual([[], []], self.caught_entries)
2522
def test_add_version_different_dup(self):
2523
index = self.two_graph_index(catch_adds=True)
2525
self.assertRaises(errors.KnitCorrupt, index.add_version,
2526
'tip', 'no-eol,line-delta', (None, 0, 100), [])
2527
self.assertRaises(errors.KnitCorrupt, index.add_version,
2528
'tip', 'line-delta,no-eol', (None, 0, 100), [])
2529
self.assertRaises(errors.KnitCorrupt, index.add_version,
2530
'tip', 'fulltext', (None, 0, 100), [])
2532
self.assertRaises(errors.KnitCorrupt, index.add_version,
2533
'tip', 'fulltext,no-eol', (None, 50, 100), [])
2534
self.assertRaises(errors.KnitCorrupt, index.add_version,
2535
'tip', 'fulltext,no-eol', (None, 0, 1000), [])
2537
self.assertRaises(errors.KnitCorrupt, index.add_version,
2538
'tip', 'fulltext,no-eol', (None, 0, 100), ['parent'])
2539
self.assertEqual([], self.caught_entries)
2541
def test_add_versions(self):
2542
index = self.two_graph_index(catch_adds=True)
2543
index.add_versions([
2544
('new', 'fulltext,no-eol', (None, 50, 60), []),
2545
('new2', 'fulltext', (None, 0, 6), []),
2547
self.assertEqual([(('new', ), 'N50 60'), (('new2', ), ' 0 6')],
2548
sorted(self.caught_entries[0]))
2549
self.assertEqual(1, len(self.caught_entries))
2551
def test_add_versions_delta_not_delta_index(self):
2552
index = self.two_graph_index(catch_adds=True)
2553
self.assertRaises(errors.KnitCorrupt, index.add_versions,
2554
[('new', 'no-eol,line-delta', (None, 0, 100), ['parent'])])
2555
self.assertEqual([], self.caught_entries)
2557
def test_add_versions_parents_not_parents_index(self):
2558
index = self.two_graph_index(catch_adds=True)
2559
self.assertRaises(errors.KnitCorrupt, index.add_versions,
2560
[('new', 'no-eol,fulltext', (None, 0, 100), ['parent'])])
2561
self.assertEqual([], self.caught_entries)
2563
def test_add_versions_random_id_accepted(self):
2564
index = self.two_graph_index(catch_adds=True)
2565
index.add_versions([], random_id=True)
2567
def test_add_versions_same_dup(self):
2568
index = self.two_graph_index(catch_adds=True)
2569
# options can be spelt two different ways
2570
index.add_versions([('tip', 'fulltext,no-eol', (None, 0, 100), [])])
2571
index.add_versions([('tip', 'no-eol,fulltext', (None, 0, 100), [])])
2572
# but neither should have added data.
2573
self.assertEqual([[], []], self.caught_entries)
2575
def test_add_versions_different_dup(self):
2576
index = self.two_graph_index(catch_adds=True)
2578
self.assertRaises(errors.KnitCorrupt, index.add_versions,
2579
[('tip', 'no-eol,line-delta', (None, 0, 100), [])])
2580
self.assertRaises(errors.KnitCorrupt, index.add_versions,
2581
[('tip', 'line-delta,no-eol', (None, 0, 100), [])])
2582
self.assertRaises(errors.KnitCorrupt, index.add_versions,
2583
[('tip', 'fulltext', (None, 0, 100), [])])
2585
self.assertRaises(errors.KnitCorrupt, index.add_versions,
2586
[('tip', 'fulltext,no-eol', (None, 50, 100), [])])
2587
self.assertRaises(errors.KnitCorrupt, index.add_versions,
2588
[('tip', 'fulltext,no-eol', (None, 0, 1000), [])])
2590
self.assertRaises(errors.KnitCorrupt, index.add_versions,
2591
[('tip', 'fulltext,no-eol', (None, 0, 100), ['parent'])])
2592
# change options in the second record
2593
self.assertRaises(errors.KnitCorrupt, index.add_versions,
2594
[('tip', 'fulltext,no-eol', (None, 0, 100), []),
2595
('tip', 'no-eol,line-delta', (None, 0, 100), [])])
2596
self.assertEqual([], self.caught_entries)
2598
class TestPackKnits(KnitTests):
2599
"""Tests that use a _PackAccess and KnitGraphIndex."""
2601
def test_get_data_stream_packs_ignores_pack_overhead(self):
2602
# Packs have an encoding overhead that should not be included in the
2603
# 'size' field of a data stream, because it is not returned by the
2604
# raw_reading functions - it is why index_memo's are opaque, and
2605
# get_data_stream was abusing this.
2606
packname = 'test.pack'
2607
transport = self.get_transport()
2608
def write_data(bytes):
2609
transport.append_bytes(packname, bytes)
2610
writer = pack.ContainerWriter(write_data)
2612
index = InMemoryGraphIndex(2)
2613
knit_index = KnitGraphIndex(index, add_callback=index.add_nodes,
2615
indices = {index:(transport, packname)}
2616
access = _PackAccess(indices, writer=(writer, index))
2617
k = KnitVersionedFile('test', get_transport('.'),
2618
delta=True, create=True, index=knit_index, access_method=access)
2619
# insert something into the knit
2620
k.add_lines('text-1', [], ["foo\n"])
2621
# get a data stream for it
2622
stream = k.get_data_stream(['text-1'])
2623
# if the stream has been incorrectly assembled, we will get a short read
2624
# reading from the stream (as streams have no trailer)
2625
expected_length = stream[1][0][2]
2626
# we use -1 to do the read, so that if a trailer is added this test
2627
# will fail and we'll adjust it to handle that case correctly, rather
2628
# than allowing an over-read that is bogus.
2629
self.assertEqual(expected_length, len(stream[2](-1)))
2632
class Test_StreamIndex(KnitTests):
2634
def get_index(self, knit, stream):
2635
"""Get a _StreamIndex from knit and stream."""
2636
return knit._knit_from_datastream(stream)._index
2638
def assertIndexVersions(self, knit, versions):
2639
"""Check that the _StreamIndex versions are those of the stream."""
2640
index = self.get_index(knit, knit.get_data_stream(versions))
2641
self.assertEqual(set(index.get_versions()), set(versions))
2642
# check we didn't get duplicates
2643
self.assertEqual(len(index.get_versions()), len(versions))
2645
def assertIndexAncestry(self, knit, ancestry_versions, versions, result):
2646
"""Check the result of a get_ancestry call on knit."""
2647
index = self.get_index(knit, knit.get_data_stream(versions))
2650
set(index.get_ancestry(ancestry_versions, False)))
2652
def assertGetMethod(self, knit, versions, version, result):
2653
index = self.get_index(knit, knit.get_data_stream(versions))
2654
self.assertEqual(result, index.get_method(version))
2656
def assertGetOptions(self, knit, version, options):
2657
index = self.get_index(knit, knit.get_data_stream(version))
2658
self.assertEqual(options, index.get_options(version))
2660
def assertGetPosition(self, knit, versions, version, result):
2661
index = self.get_index(knit, knit.get_data_stream(versions))
2662
if result[1] is None:
2663
result = (result[0], index, result[2], result[3])
2664
self.assertEqual(result, index.get_position(version))
2666
def assertGetParentsWithGhosts(self, knit, versions, version, parents):
2667
index = self.get_index(knit, knit.get_data_stream(versions))
2668
self.assertEqual(parents, index.get_parents_with_ghosts(version))
2670
def make_knit_with_4_versions_2_dags(self):
2671
knit = self.make_test_knit()
2672
knit.add_lines('a', [], ["foo"])
2673
knit.add_lines('b', [], [])
2674
knit.add_lines('c', ['b', 'a'], [])
2675
knit.add_lines_with_ghosts('d', ['e', 'f'], [])
2678
def test_versions(self):
2679
"""The versions of a StreamIndex are those of the datastream."""
2680
knit = self.make_knit_with_4_versions_2_dags()
2681
# ask for most permutations, which catches bugs like falling back to the
2682
# target knit, or showing ghosts, etc.
2683
self.assertIndexVersions(knit, [])
2684
self.assertIndexVersions(knit, ['a'])
2685
self.assertIndexVersions(knit, ['b'])
2686
self.assertIndexVersions(knit, ['c'])
2687
self.assertIndexVersions(knit, ['d'])
2688
self.assertIndexVersions(knit, ['a', 'b'])
2689
self.assertIndexVersions(knit, ['b', 'c'])
2690
self.assertIndexVersions(knit, ['a', 'c'])
2691
self.assertIndexVersions(knit, ['a', 'b', 'c'])
2692
self.assertIndexVersions(knit, ['a', 'b', 'c', 'd'])
2694
def test_construct(self):
2695
"""Constructing a StreamIndex generates index data."""
2696
data_list = [('text-a', ['fulltext'], 127, []),
2697
('text-b', ['option'], 128, ['text-c'])]
2698
index = _StreamIndex(data_list, None)
2699
self.assertEqual({'text-a':(['fulltext'], (0, 127), []),
2700
'text-b':(['option'], (127, 127 + 128), ['text-c'])},
2703
def test_get_ancestry(self):
2704
knit = self.make_knit_with_4_versions_2_dags()
2705
self.assertIndexAncestry(knit, ['a'], ['a'], ['a'])
2706
self.assertIndexAncestry(knit, ['b'], ['b'], ['b'])
2707
self.assertIndexAncestry(knit, ['c'], ['c'], ['c'])
2708
self.assertIndexAncestry(knit, ['c'], ['a', 'b', 'c'],
2709
set(['a', 'b', 'c']))
2710
self.assertIndexAncestry(knit, ['c', 'd'], ['a', 'b', 'c', 'd'],
2711
set(['a', 'b', 'c', 'd']))
2713
def test_get_method(self):
2714
knit = self.make_knit_with_4_versions_2_dags()
2715
self.assertGetMethod(knit, ['a'], 'a', 'fulltext')
2716
self.assertGetMethod(knit, ['c'], 'c', 'line-delta')
2717
# get_method on a basis that is not in the datastream (but in the
2718
# backing knit) returns 'fulltext', because thats what we'll create as
2720
self.assertGetMethod(knit, ['c'], 'b', 'fulltext')
2722
def test_get_options(self):
2723
knit = self.make_knit_with_4_versions_2_dags()
2724
self.assertGetOptions(knit, 'a', ['no-eol', 'fulltext'])
2725
self.assertGetOptions(knit, 'c', ['line-delta'])
2727
def test_get_parents_with_ghosts(self):
2728
knit = self.make_knit_with_4_versions_2_dags()
2729
self.assertGetParentsWithGhosts(knit, ['a'], 'a', ())
2730
self.assertGetParentsWithGhosts(knit, ['c'], 'c', ('b', 'a'))
2731
self.assertGetParentsWithGhosts(knit, ['d'], 'd', ('e', 'f'))
2733
def test_get_position(self):
2734
knit = self.make_knit_with_4_versions_2_dags()
2735
# get_position returns (thunk_flag, index(can be None), start, end) for
2736
# _StreamAccess to use.
2737
self.assertGetPosition(knit, ['a'], 'a', (False, None, 0, 78))
2738
self.assertGetPosition(knit, ['a', 'c'], 'c', (False, None, 78, 156))
2739
# get_position on a text that is not in the datastream (but in the
2740
# backing knit) returns (True, 'versionid', None, None) - and then the
2741
# access object can construct the relevant data as needed.
2742
self.assertGetPosition(knit, ['a', 'c'], 'b', (True, 'b', None, None))
2745
class Test_StreamAccess(KnitTests):
2747
def get_index_access(self, knit, stream):
2748
"""Get a _StreamAccess from knit and stream."""
2749
knit = knit._knit_from_datastream(stream)
2750
return knit._index, knit._data._access
2752
def assertGetRawRecords(self, knit, versions):
2753
index, access = self.get_index_access(knit,
2754
knit.get_data_stream(versions))
2755
# check that every version asked for can be obtained from the resulting
2759
for version in versions:
2760
memos.append(knit._index.get_position(version))
2762
for version, data in zip(
2763
versions, knit._data._access.get_raw_records(memos)):
2764
original[version] = data
2766
for version in versions:
2767
memos.append(index.get_position(version))
2769
for version, data in zip(versions, access.get_raw_records(memos)):
2770
streamed[version] = data
2771
self.assertEqual(original, streamed)
2773
for version in versions:
2774
data = list(access.get_raw_records(
2775
[index.get_position(version)]))[0]
2776
self.assertEqual(original[version], data)
2778
def make_knit_with_two_versions(self):
2779
knit = self.make_test_knit()
2780
knit.add_lines('a', [], ["foo"])
2781
knit.add_lines('b', [], ["bar"])
2784
def test_get_raw_records(self):
2785
knit = self.make_knit_with_two_versions()
2786
self.assertGetRawRecords(knit, ['a', 'b'])
2787
self.assertGetRawRecords(knit, ['a'])
2788
self.assertGetRawRecords(knit, ['b'])
2790
def test_get_raw_record_from_backing_knit(self):
2791
# the thunk layer should create an artificial A on-demand when needed.
2792
source_knit = self.make_test_knit(name='plain', annotate=False)
2793
target_knit = self.make_test_knit(name='annotated', annotate=True)
2794
source_knit.add_lines("A", [], ["Foo\n"])
2795
# Give the target A, so we can try to thunk across to it.
2796
target_knit.join(source_knit)
2797
index, access = self.get_index_access(target_knit,
2798
source_knit.get_data_stream([]))
2799
raw_data = list(access.get_raw_records([(True, "A", None, None)]))[0]
2800
df = GzipFile(mode='rb', fileobj=StringIO(raw_data))
2802
'version A 1 5d36b88bb697a2d778f024048bafabd443d74503\n'
2806
def test_asking_for_thunk_stream_is_not_plain_errors(self):
2807
knit = self.make_test_knit(name='annotated', annotate=True)
2808
knit.add_lines("A", [], ["Foo\n"])
2809
index, access = self.get_index_access(knit,
2810
knit.get_data_stream([]))
2811
self.assertRaises(errors.KnitCorrupt,
2812
list, access.get_raw_records([(True, "A", None, None)]))
2815
class TestFormatSignatures(KnitTests):
2817
def test_knit_format_signatures(self):
2818
"""Different formats of knit have different signature strings."""
2819
knit = self.make_test_knit(name='a', annotate=True)
2820
self.assertEqual('knit-annotated', knit.get_format_signature())
2821
knit = self.make_test_knit(name='p', annotate=False)
2822
self.assertEqual('knit-plain', knit.get_format_signature())
added
removed
bzrlib/tests/test_knit.py
