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# Copyright (C) 2005 by Canonical Ltd
#
# Authors:
# Johan Rydberg <jrydberg@gnu.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
# Remaing to do is to figure out if get_graph should return a simple
# map, or a graph object of some kind.
import bzrlib
import bzrlib.errors as errors
from bzrlib.errors import RevisionNotPresent, \
RevisionAlreadyPresent
from bzrlib.knit import KnitVersionedFile, \
KnitAnnotateFactory
from bzrlib.tests import TestCaseInTempDir
from bzrlib.trace import mutter
from bzrlib.transport.local import LocalTransport
from bzrlib.weave import WeaveFile
from bzrlib.weavefile import read_weave
class VersionedFileTestMixIn(object):
"""A mixin test class for testing VersionedFiles.
This is not an adaptor-style test at this point because
theres no dynamic substitution of versioned file implementations,
they are strictly controlled by their owning repositories.
"""
def test_add(self):
f = self.get_file()
f.add_lines('r0', [], ['a\n', 'b\n'])
f.add_lines('r1', ['r0'], ['b\n', 'c\n'])
def verify_file(f):
versions = f.versions()
self.assertTrue('r0' in versions)
self.assertTrue('r1' in versions)
self.assertEquals(f.get_lines('r0'), ['a\n', 'b\n'])
self.assertEquals(f.get_text('r0'), 'a\nb\n')
self.assertEquals(f.get_lines('r1'), ['b\n', 'c\n'])
self.assertRaises(RevisionNotPresent,
f.add_lines, 'r2', ['foo'], [])
self.assertRaises(RevisionAlreadyPresent,
f.add_lines, 'r1', [], [])
verify_file(f)
f = self.reopen_file()
verify_file(f)
def test_ancestry(self):
f = self.get_file()
f.add_lines('r0', [], ['a\n', 'b\n'])
f.add_lines('r1', ['r0'], ['b\n', 'c\n'])
f.add_lines('r2', ['r0'], ['b\n', 'c\n'])
f.add_lines('r3', ['r2'], ['b\n', 'c\n'])
f.add_lines('rM', ['r1', 'r2'], ['b\n', 'c\n'])
versions = set(f.get_ancestry(['rM']))
self.assertEquals(versions, set(['rM', 'r2', 'r1', 'r0']))
self.assertRaises(RevisionNotPresent,
f.get_ancestry, ['rM', 'rX'])
def test_clear_cache(self):
f = self.get_file()
# on a new file it should not error
f.clear_cache()
# and after adding content, doing a clear_cache and a get should work.
f.add_lines('0', [], ['a'])
f.clear_cache()
self.assertEqual(['a'], f.get_lines('0'))
def test_clone_text(self):
f = self.get_file()
f.add_lines('r0', [], ['a\n', 'b\n'])
f.clone_text('r1', 'r0', ['r0'])
def verify_file(f):
self.assertEquals(f.get_lines('r1'), f.get_lines('r0'))
self.assertEquals(f.get_lines('r1'), ['a\n', 'b\n'])
self.assertEquals(f.get_parents('r1'), ['r0'])
self.assertRaises(RevisionNotPresent,
f.clone_text, 'r2', 'rX', [])
self.assertRaises(RevisionAlreadyPresent,
f.clone_text, 'r1', 'r0', [])
verify_file(f)
verify_file(self.reopen_file())
def test_get_parents(self):
f = self.get_file()
f.add_lines('r0', [], ['a\n', 'b\n'])
f.add_lines('r1', [], ['a\n', 'b\n'])
f.add_lines('r2', [], ['a\n', 'b\n'])
f.add_lines('r3', [], ['a\n', 'b\n'])
f.add_lines('m', ['r0', 'r1', 'r2', 'r3'], ['a\n', 'b\n'])
self.assertEquals(f.get_parents('m'), ['r0', 'r1', 'r2', 'r3'])
self.assertRaises(RevisionNotPresent,
f.get_parents, 'y')
def test_annotate(self):
f = self.get_file()
f.add_lines('r0', [], ['a\n', 'b\n'])
f.add_lines('r1', ['r0'], ['c\n', 'b\n'])
origins = f.annotate('r1')
self.assertEquals(origins[0][0], 'r1')
self.assertEquals(origins[1][0], 'r0')
self.assertRaises(RevisionNotPresent,
f.annotate, 'foo')
def test_join(self):
f1 = self.get_file('1')
f1.add_lines('r0', [], ['a\n', 'b\n'])
f1.add_lines('r1', ['r0'], ['c\n', 'b\n'])
f2 = self.get_file('2')
f2.join(f1, None)
def verify_file(f):
self.assertTrue(f.has_version('r0'))
self.assertTrue(f.has_version('r1'))
verify_file(f2)
verify_file(self.reopen_file('2'))
self.assertRaises(RevisionNotPresent,
f2.join, f1, version_ids=['r3'])
#f3 = self.get_file('1')
#f3.add_lines('r0', ['a\n', 'b\n'], [])
#f3.add_lines('r1', ['c\n', 'b\n'], ['r0'])
#f4 = self.get_file('2')
#f4.join(f3, ['r0'])
#self.assertTrue(f4.has_version('r0'))
#self.assertFalse(f4.has_version('r1'))
def test_walk(self):
f = self.get_file('1')
f.add_lines('r0', [], ['a\n', 'b\n'])
f.add_lines('r1', ['r0'], ['c\n', 'b\n'])
f.add_lines('rX', ['r1'], ['d\n', 'b\n'])
f.add_lines('rY', ['r1'], ['c\n', 'e\n'])
lines = {}
for lineno, insert, dset, text in f.walk(['rX', 'rY']):
lines[text] = (insert, dset)
self.assertTrue(lines['a\n'], ('r0', set(['r1'])))
self.assertTrue(lines['b\n'], ('r0', set(['rY'])))
self.assertTrue(lines['c\n'], ('r1', set(['rX'])))
self.assertTrue(lines['d\n'], ('rX', set([])))
self.assertTrue(lines['e\n'], ('rY', set([])))
def test_detection(self):
# Test weaves detect corruption.
#
# Weaves contain a checksum of their texts.
# When a text is extracted, this checksum should be
# verified.
w = self.get_file_corrupted_text()
self.assertEqual('hello\n', w.get_text('v1'))
self.assertRaises(errors.WeaveInvalidChecksum, w.get_text, 'v2')
self.assertRaises(errors.WeaveInvalidChecksum, w.get_lines, 'v2')
self.assertRaises(errors.WeaveInvalidChecksum, list, w.get_iter('v2'))
self.assertRaises(errors.WeaveInvalidChecksum, w.check)
w = self.get_file_corrupted_checksum()
self.assertEqual('hello\n', w.get_text('v1'))
self.assertRaises(errors.WeaveInvalidChecksum, w.get_text, 'v2')
self.assertRaises(errors.WeaveInvalidChecksum, w.get_lines, 'v2')
self.assertRaises(errors.WeaveInvalidChecksum, list, w.get_iter('v2'))
self.assertRaises(errors.WeaveInvalidChecksum, w.check)
def get_file_corrupted_text(self):
"""Return a versioned file with corrupt text but valid metadata."""
raise NotImplementedError(self.get_file_corrupted_text)
def reopen_file(self, name='foo'):
"""Open the versioned file from disk again."""
raise NotImplementedError(self.reopen_file)
class TestWeave(TestCaseInTempDir, VersionedFileTestMixIn):
def get_file(self, name='foo'):
return WeaveFile(name, LocalTransport('.'))
def get_file_corrupted_text(self):
w = WeaveFile('foo', LocalTransport('.'))
w.add('v1', [], ['hello\n'])
w.add('v2', ['v1'], ['hello\n', 'there\n'])
# We are going to invasively corrupt the text
# Make sure the internals of weave are the same
self.assertEqual([('{', 0)
, 'hello\n'
, ('}', None)
, ('{', 1)
, 'there\n'
, ('}', None)
], w._weave)
self.assertEqual(['f572d396fae9206628714fb2ce00f72e94f2258f'
, '90f265c6e75f1c8f9ab76dcf85528352c5f215ef'
], w._sha1s)
w.check()
# Corrupted
w._weave[4] = 'There\n'
return w
def get_file_corrupted_checksum(self):
w = self.get_file_corrupted_text()
# Corrected
w._weave[4] = 'there\n'
self.assertEqual('hello\nthere\n', w.get_text('v2'))
#Invalid checksum, first digit changed
w._sha1s[1] = 'f0f265c6e75f1c8f9ab76dcf85528352c5f215ef'
return w
def reopen_file(self, name='foo'):
return WeaveFile(name, LocalTransport('.'))
class TestKnit(TestCaseInTempDir, VersionedFileTestMixIn):
def get_file(self, name='foo'):
return KnitVersionedFile(LocalTransport('.'),
name, 'w', KnitAnnotateFactory(), delta=True)
def get_file_corrupted_text(self):
knit = self.get_file()
knit.add_lines('v1', [], ['hello\n'])
knit.add_lines('v2', ['v1'], ['hello\n', 'there\n'])
return knit
def reopen_file(self, name='foo'):
return KnitVersionedFile(LocalTransport('.'),
name, 'w', KnitAnnotateFactory(), delta=True)
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