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# Copyright (C) 2005 by Canonical Ltd
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# Copyright (C) 2005-2009, 2011 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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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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# TODO: tests regarding version names
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# TODO: rbc 20050108 test that join does not leave an inconsistent weave
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"""test suite for weave algorithm"""
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from pprint import pformat
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from bzrlib.osutils import sha_string
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from bzrlib.tests import TestCase, TestCaseInTempDir
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from bzrlib.weave import Weave, WeaveFormatError
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from bzrlib.weavefile import write_weave, read_weave
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from pprint import pformat
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from sets import Set, ImmutableSet
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frozenset = ImmutableSet
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# texts for use in testing
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self.log('serialized weave:')
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self.log(tf.read())
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self.log('parents: %s' % (k._parents == k2._parents))
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self.log(' %r' % k._parents)
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self.log(' %r' % k2._parents)
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self.fail('read/write check failed')
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class WeaveContains(TestBase):
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"""Weave __contains__ operator"""
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k = Weave(get_scope=lambda:None)
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self.assertFalse('foo' in k)
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k.add_lines('foo', [], TEXT_1)
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self.assertTrue('foo' in k)
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class Easy(TestBase):
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class StoreText(TestBase):
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"""Store and retrieve a simple text."""
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idx = k.add([], TEXT_0)
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self.assertEqual(k.get(idx), TEXT_0)
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self.assertEqual(idx, 0)
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class AnnotateOne(TestBase):
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self.assertEqual(k.annotate(0),
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class StoreTwo(TestBase):
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idx = k.add([], TEXT_0)
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self.assertEqual(idx, 0)
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idx = k.add([], TEXT_1)
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self.assertEqual(idx, 1)
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self.assertEqual(k.get(0), TEXT_0)
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self.assertEqual(k.get(1), TEXT_1)
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k.dump(self.TEST_LOG)
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k.add_lines('text0', [], TEXT_0)
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self.assertEqual(k.annotate('text0'),
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[('text0', TEXT_0[0])])
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class InvalidAdd(TestBase):
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"""Try to use invalid version number during add."""
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def runTest(self):
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self.assertRaises(IndexError,
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self.assertRaises(errors.RevisionNotPresent,
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class RepeatedAdd(TestBase):
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"""Add the same version twice; harmless."""
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def test_duplicate_add(self):
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idx = k.add_lines('text0', [], TEXT_0)
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idx2 = k.add_lines('text0', [], TEXT_0)
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self.assertEqual(idx, idx2)
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class InvalidRepeatedAdd(TestBase):
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k.add_lines('basis', [], TEXT_0)
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idx = k.add_lines('text0', [], TEXT_0)
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self.assertRaises(errors.RevisionAlreadyPresent,
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['not the same text'])
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self.assertRaises(errors.RevisionAlreadyPresent,
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['basis'], # not the right parents
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class InsertLines(TestBase):
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"""Store a revision that adds one line to the original.
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def runTest(self):
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k.add([], ['line 1'])
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k.add([0], ['line 1', 'line 2'])
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self.assertEqual(k.annotate(0),
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self.assertEqual(k.get(1),
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k.add_lines('text0', [], ['line 1'])
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k.add_lines('text1', ['text0'], ['line 1', 'line 2'])
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self.assertEqual(k.annotate('text0'),
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[('text0', 'line 1')])
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self.assertEqual(k.get_lines(1),
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self.assertEqual(k.annotate(1),
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k.add([0], ['line 1', 'diverged line'])
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self.assertEqual(k.annotate(2),
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(2, 'diverged line')])
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self.assertEqual(k.annotate('text1'),
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[('text0', 'line 1'),
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('text1', 'line 2')])
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k.add_lines('text2', ['text0'], ['line 1', 'diverged line'])
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self.assertEqual(k.annotate('text2'),
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[('text0', 'line 1'),
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('text2', 'diverged line')])
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text3 = ['line 1', 'middle line', 'line 2']
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# self.log("changes to text3: " + pformat(list(k._delta(set([0, 1]), text3))))
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self.log("k._weave=" + pformat(k._weave))
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self.assertEqual(k.annotate(3),
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self.assertEqual(k.annotate('text3'),
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[('text0', 'line 1'),
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('text3', 'middle line'),
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('text1', 'line 2')])
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# now multiple insertions at different places
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['text0', 'text1', 'text3'],
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['line 1', 'aaa', 'middle line', 'bbb', 'line 2', 'ccc'])
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self.assertEqual(k.annotate(4),
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self.assertEqual(k.annotate('text4'),
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[('text0', 'line 1'),
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('text3', 'middle line'),
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class DeleteLines(TestBase):
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k.add([], ['aaa', 'bbb'])
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k.add([0], ['111', 'aaa', 'ccc', 'bbb'])
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k.add([1], ['aaa', 'ccc', 'bbb', '222'])
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class AutoMerge(TestBase):
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texts = [['header', 'aaa', 'bbb'],
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['header', 'aaa', 'line from 1', 'bbb'],
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['header', 'aaa', 'bbb', 'line from 2', 'more from 2'],
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self.log('k._weave=' + pformat(k._weave))
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m = list(k.mash_iter([0, 1, 2]))
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'line from 2', 'more from 2'])
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k.add_lines([], ['aaa', 'bbb'])
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k.add_lines([0], ['111', 'aaa', 'ccc', 'bbb'])
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k.add_lines([1], ['aaa', 'ccc', 'bbb', '222'])
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class Khayyam(TestBase):
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"""Test changes to multi-line texts, and read/write"""
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def test_multi_line_merge(self):
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"""A Book of Verses underneath the Bough,
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A Jug of Wine, a Loaf of Bread, -- and Thou
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Beside me singing in the Wilderness --
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Oh, Wilderness were Paradise enow!""",
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"""A Book of Verses underneath the Bough,
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A Jug of Wine, a Loaf of Bread, -- and Thou
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Beside me singing in the Wilderness --
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ver = k.add(list(parents), t)
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ver = k.add_lines('text%d' % i,
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parents.add('text%d' % i)
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self.log("k._weave=" + pformat(k._weave))
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for i, t in enumerate(texts):
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self.assertEqual(k.get(i), t)
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self.assertEqual(k.get_lines(i), t)
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self.check_read_write(k)
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class MergeCases(TestBase):
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def doMerge(self, base, a, b, mp):
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class JoinWeavesTests(TestBase):
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super(JoinWeavesTests, self).setUp()
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self.weave1 = Weave()
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self.lines1 = ['hello\n']
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self.lines3 = ['hello\n', 'cruel\n', 'world\n']
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self.weave1.add_lines('v1', [], self.lines1)
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self.weave1.add_lines('v2', ['v1'], ['hello\n', 'world\n'])
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self.weave1.add_lines('v3', ['v2'], self.lines3)
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def test_written_detection(self):
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# Test detection of weave file corruption.
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# Make sure that we can detect if a weave file has
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# been corrupted. This doesn't test all forms of corruption,
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# but it at least helps verify the data you get, is what you want.
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from cStringIO import StringIO
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from textwrap import dedent
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w.add([], map(addcrlf, base))
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w.add([0], map(addcrlf, a))
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w.add([0], map(addcrlf, b))
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w.add_lines('v1', [], ['hello\n'])
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w.add_lines('v2', ['v1'], ['hello\n', 'there\n'])
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self.log('weave is:')
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tmpf = StringIO()
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write_weave(w, tmpf)
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self.log(tmpf.getvalue())
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self.log('merge plan:')
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p = list(w.plan_merge(1, 2))
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for state, line in p:
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self.log('%12s | %s' % (state, line[:-1]))
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mt.writelines(w.weave_merge(p))
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self.log(mt.getvalue())
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mp = map(addcrlf, mp)
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self.assertEqual(mt.readlines(), mp)
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def testOneInsert(self):
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def testSeparateInserts(self):
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self.doMerge(['aaa', 'bbb', 'ccc'],
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['aaa', 'xxx', 'bbb', 'ccc'],
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['aaa', 'bbb', 'yyy', 'ccc'],
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['aaa', 'xxx', 'bbb', 'yyy', 'ccc'])
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def testSameInsert(self):
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self.doMerge(['aaa', 'bbb', 'ccc'],
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['aaa', 'xxx', 'bbb', 'ccc'],
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['aaa', 'xxx', 'bbb', 'yyy', 'ccc'],
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['aaa', 'xxx', 'bbb', 'yyy', 'ccc'])
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def testOverlappedInsert(self):
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self.doMerge(['aaa', 'bbb'],
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['aaa', 'xxx', 'yyy', 'bbb'],
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['aaa', 'xxx', 'bbb'],
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['aaa', '<<<<', 'xxx', 'yyy', '====', 'xxx', '>>>>', 'bbb'])
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# really it ought to reduce this to
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# ['aaa', 'xxx', 'yyy', 'bbb']
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def testClashReplace(self):
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self.doMerge(['aaa'],
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['<<<<', 'xxx', '====', 'yyy', 'zzz', '>>>>'])
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def testNonClashInsert(self):
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self.doMerge(['aaa'],
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['<<<<', 'xxx', 'aaa', '====', 'yyy', 'zzz', '>>>>'])
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self.doMerge(['aaa'],
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def testDeleteAndModify(self):
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"""Clashing delete and modification.
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If one side modifies a region and the other deletes it then
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there should be a conflict with one side blank.
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#######################################
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# skippd, not working yet
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self.doMerge(['aaa', 'bbb', 'ccc'],
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['aaa', 'ddd', 'ccc'],
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['<<<<', 'aaa', '====', '>>>>', 'ccc'])
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from unittest import TestSuite, TestLoader
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suite.addTest(tl.loadTestsFromModule(testweave))
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return int(not testsweet.run_suite(suite)) # for shell 0=true
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if __name__ == '__main__':
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sys.exit(testweave())
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# Because we are corrupting, we need to make sure we have the exact text
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self.assertEquals('# bzr weave file v5\n'
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'i\n1 f572d396fae9206628714fb2ce00f72e94f2258f\nn v1\n\n'
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'i 0\n1 90f265c6e75f1c8f9ab76dcf85528352c5f215ef\nn v2\n\n'
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'w\n{ 0\n. hello\n}\n{ 1\n. there\n}\nW\n',
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# Change a single letter
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tmpf = StringIO('# bzr weave file v5\n'
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'i\n1 f572d396fae9206628714fb2ce00f72e94f2258f\nn v1\n\n'
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'i 0\n1 90f265c6e75f1c8f9ab76dcf85528352c5f215ef\nn v2\n\n'
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'w\n{ 0\n. hello\n}\n{ 1\n. There\n}\nW\n')
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self.assertEqual('hello\n', w.get_text('v1'))
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self.assertRaises(errors.WeaveInvalidChecksum, w.get_text, 'v2')
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self.assertRaises(errors.WeaveInvalidChecksum, w.get_lines, 'v2')
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self.assertRaises(errors.WeaveInvalidChecksum, w.check)
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# Change the sha checksum
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tmpf = StringIO('# bzr weave file v5\n'
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'i\n1 f572d396fae9206628714fb2ce00f72e94f2258f\nn v1\n\n'
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'i 0\n1 f0f265c6e75f1c8f9ab76dcf85528352c5f215ef\nn v2\n\n'
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'w\n{ 0\n. hello\n}\n{ 1\n. there\n}\nW\n')
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self.assertEqual('hello\n', w.get_text('v1'))
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self.assertRaises(errors.WeaveInvalidChecksum, w.get_text, 'v2')
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self.assertRaises(errors.WeaveInvalidChecksum, w.get_lines, 'v2')
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self.assertRaises(errors.WeaveInvalidChecksum, w.check)
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class TestWeave(TestCase):
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def test_allow_reserved_false(self):
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w = Weave('name', allow_reserved=False)
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# Add lines is checked at the WeaveFile level, not at the Weave level
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w.add_lines('name:', [], TEXT_1)
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# But get_lines is checked at this level
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self.assertRaises(errors.ReservedId, w.get_lines, 'name:')
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def test_allow_reserved_true(self):
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w = Weave('name', allow_reserved=True)
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w.add_lines('name:', [], TEXT_1)
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self.assertEqual(TEXT_1, w.get_lines('name:'))
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class InstrumentedWeave(Weave):
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"""Keep track of how many times functions are called."""
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def __init__(self, weave_name=None):
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self._extract_count = 0
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Weave.__init__(self, weave_name=weave_name)
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def _extract(self, versions):
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self._extract_count += 1
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return Weave._extract(self, versions)
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class TestNeedsReweave(TestCase):
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"""Internal corner cases for when reweave is needed."""
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def test_compatible_parents(self):
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my_parents = set([1, 2, 3])
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self.assertTrue(w1._compatible_parents(my_parents, set([3])))
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self.assertTrue(w1._compatible_parents(my_parents, set(my_parents)))
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# same empty corner case
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self.assertTrue(w1._compatible_parents(set(), set()))
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# other cannot contain stuff my_parents does not
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self.assertFalse(w1._compatible_parents(set(), set([1])))
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self.assertFalse(w1._compatible_parents(my_parents, set([1, 2, 3, 4])))
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self.assertFalse(w1._compatible_parents(my_parents, set([4])))
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class TestWeaveFile(TestCaseInTempDir):
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def test_empty_file(self):
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f = open('empty.weave', 'wb+')
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self.assertRaises(errors.WeaveFormatError,
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removed
bzrlib/tests/test_weave.py
