1
# (C) 2005 Canonical Ltd
1
# Copyright (C) 2005 Canonical Ltd
3
3
# This program is free software; you can redistribute it and/or modify
4
4
# it under the terms of the GNU General Public License as published by
5
5
# the Free Software Foundation; either version 2 of the License, or
6
6
# (at your option) any later version.
8
8
# This program is distributed in the hope that it will be useful,
9
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
10
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11
11
# GNU General Public License for more details.
13
13
# You should have received a copy of the GNU General Public License
14
14
# along with this program; if not, write to the Free Software
15
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20
from bzrlib.selftest import TestCaseInTempDir
21
24
from bzrlib.branch import Branch
22
from bzrlib.commit import commit
23
from bzrlib.fetch import fetch
25
from bzrlib.errors import NoSuchRevision
26
from bzrlib.graph import Graph
24
27
from bzrlib.revision import (find_present_ancestors, combined_graph,
25
is_ancestor, MultipleRevisionSources)
29
is_ancestor, MultipleRevisionSources,
31
from bzrlib.tests import TestCase, TestCaseWithTransport
26
32
from bzrlib.trace import mutter
27
from bzrlib.errors import NoSuchRevision
33
from bzrlib.workingtree import WorkingTree
35
# We're allowed to test deprecated interfaces
36
warnings.filterwarnings('ignore',
37
'.*get_intervening_revisions was deprecated',
39
r'bzrlib\.tests\.test_revision')
41
# XXX: Make this a method of a merge base case
42
def make_branches(self):
30
43
"""Create two branches
32
45
branch 1 has 6 commits, branch 2 has 3 commits
33
commit 10 was a psuedo merge from branch 1
34
but has been disabled until ghost support is
46
commit 10 is a ghosted merge merge from branch 1
37
48
the object graph is
47
58
so A is missing b6 at the start
48
59
and B is missing a3, a4, a5
51
br1 = Branch.initialize("branch1")
61
tree1 = self.make_branch_and_tree("branch1")
53
commit(br1, "Commit one", rev_id="a@u-0-0")
54
commit(br1, "Commit two", rev_id="a@u-0-1")
55
commit(br1, "Commit three", rev_id="a@u-0-2")
64
tree1.commit("Commit one", rev_id="a@u-0-0")
65
tree1.commit("Commit two", rev_id="a@u-0-1")
66
tree1.commit("Commit three", rev_id="a@u-0-2")
58
br2 = Branch.initialize("branch2")
59
br2.update_revisions(br1)
60
commit(br2, "Commit four", rev_id="b@u-0-3")
61
commit(br2, "Commit five", rev_id="b@u-0-4")
68
tree2 = tree1.bzrdir.clone("branch2").open_workingtree()
70
tree2.commit("Commit four", rev_id="b@u-0-3")
71
tree2.commit("Commit five", rev_id="b@u-0-4")
62
72
revisions_2 = br2.revision_history()
64
fetch(from_branch=br2, to_branch=br1)
65
br1.add_pending_merge(revisions_2[4])
66
assert revisions_2[4] == 'b@u-0-4'
67
commit(br1, "Commit six", rev_id="a@u-0-3")
68
commit(br1, "Commit seven", rev_id="a@u-0-4")
69
commit(br2, "Commit eight", rev_id="b@u-0-5")
71
fetch(from_branch=br2, to_branch=br1)
72
br1.add_pending_merge(br2.revision_history()[5])
73
commit(br1, "Commit nine", rev_id="a@u-0-5")
74
# DO NOT FETCH HERE - we WANT a GHOST.
75
#fetch(from_branch=br1, to_branch=br2)
76
br2.add_pending_merge(br1.revision_history()[4])
77
commit(br2, "Commit ten - ghost merge", rev_id="b@u-0-6")
73
self.assertEquals(revisions_2[-1], 'b@u-0-4')
75
tree1.merge_from_branch(br2)
76
tree1.commit("Commit six", rev_id="a@u-0-3")
77
tree1.commit("Commit seven", rev_id="a@u-0-4")
78
tree2.commit("Commit eight", rev_id="b@u-0-5")
79
self.assertEquals(br2.revision_history()[-1], 'b@u-0-5')
81
tree1.merge_from_branch(br2)
82
tree1.commit("Commit nine", rev_id="a@u-0-5")
83
# DO NOT MERGE HERE - we WANT a GHOST.
84
tree2.add_parent_tree_id(br1.revision_history()[4])
85
tree2.commit("Commit ten - ghost merge", rev_id="b@u-0-6")
82
class TestIsAncestor(TestCaseInTempDir):
90
class TestIsAncestor(TestCaseWithTransport):
83
92
def test_recorded_ancestry(self):
84
93
"""Test that commit records all ancestors"""
85
br1, br2 = make_branches()
94
br1, br2 = make_branches(self)
86
95
d = [('a@u-0-0', ['a@u-0-0']),
87
96
('a@u-0-1', ['a@u-0-0', 'a@u-0-1']),
88
97
('a@u-0-2', ['a@u-0-0', 'a@u-0-1', 'a@u-0-2']),
111
120
if rev_id in br2_only and not branch is br2:
113
122
mutter('ancestry of {%s}: %r',
114
rev_id, branch.get_ancestry(rev_id))
115
self.assertEquals(sorted(branch.get_ancestry(rev_id)),
116
[None] + sorted(anc))
123
rev_id, branch.repository.get_ancestry(rev_id))
124
result = sorted(branch.repository.get_ancestry(rev_id))
125
self.assertEquals(result, [None] + sorted(anc))
119
128
def test_is_ancestor(self):
120
129
"""Test checking whether a revision is an ancestor of another revision"""
121
br1, br2 = make_branches()
130
br1, br2 = make_branches(self)
122
131
revisions = br1.revision_history()
123
132
revisions_2 = br2.revision_history()
126
assert is_ancestor(revisions[0], revisions[0], br1)
127
assert is_ancestor(revisions[1], revisions[0], sources)
128
assert not is_ancestor(revisions[0], revisions[1], sources)
129
assert is_ancestor(revisions_2[3], revisions[0], sources)
135
self.assert_(is_ancestor(revisions[0], revisions[0], br1))
136
self.assert_(is_ancestor(revisions[1], revisions[0], sources))
137
self.assert_(not is_ancestor(revisions[0], revisions[1], sources))
138
self.assert_(is_ancestor(revisions_2[3], revisions[0], sources))
130
139
# disabled mbp 20050914, doesn't seem to happen anymore
131
140
## self.assertRaises(NoSuchRevision, is_ancestor, revisions_2[3],
132
141
## revisions[0], br1)
133
assert is_ancestor(revisions[3], revisions_2[4], sources)
134
assert is_ancestor(revisions[3], revisions_2[4], br1)
135
assert is_ancestor(revisions[3], revisions_2[3], sources)
136
## assert not is_ancestor(revisions[3], revisions_2[3], br1)
139
class TestIntermediateRevisions(TestCaseInTempDir):
142
self.assert_(is_ancestor(revisions[3], revisions_2[4], sources))
143
self.assert_(is_ancestor(revisions[3], revisions_2[4], br1))
144
self.assert_(is_ancestor(revisions[3], revisions_2[3], sources))
145
## self.assert_(not is_ancestor(revisions[3], revisions_2[3], br1))
148
class TestIntermediateRevisions(TestCaseWithTransport):
142
from bzrlib.commit import commit
143
TestCaseInTempDir.setUp(self)
144
self.br1, self.br2 = make_branches()
146
self.br2.commit("Commit eleven", rev_id="b@u-0-7")
147
self.br2.commit("Commit twelve", rev_id="b@u-0-8")
148
self.br2.commit("Commit thirtteen", rev_id="b@u-0-9")
150
fetch(from_branch=self.br2, to_branch=self.br1)
151
self.br1.add_pending_merge(self.br2.revision_history()[6])
152
self.br1.commit("Commit fourtten", rev_id="a@u-0-6")
154
fetch(from_branch=self.br1, to_branch=self.br2)
155
self.br2.add_pending_merge(self.br1.revision_history()[6])
156
self.br2.commit("Commit fifteen", rev_id="b@u-0-10")
151
TestCaseWithTransport.setUp(self)
152
self.br1, self.br2 = make_branches(self)
153
wt1 = self.br1.bzrdir.open_workingtree()
154
wt2 = self.br2.bzrdir.open_workingtree()
155
wt2.commit("Commit eleven", rev_id="b@u-0-7")
156
wt2.commit("Commit twelve", rev_id="b@u-0-8")
157
wt2.commit("Commit thirtteen", rev_id="b@u-0-9")
159
wt1.merge_from_branch(self.br2)
160
wt1.commit("Commit fourtten", rev_id="a@u-0-6")
162
wt2.merge_from_branch(self.br1)
163
wt2.commit("Commit fifteen", rev_id="b@u-0-10")
158
165
from bzrlib.revision import MultipleRevisionSources
159
self.sources = MultipleRevisionSources(self.br1, self.br2)
161
def intervene(self, ancestor, revision, revision_history=None):
162
from bzrlib.revision import get_intervening_revisions
163
return get_intervening_revisions(ancestor,revision, self.sources,
166
def test_intervene(self):
167
"""Find intermediate revisions, without requiring history"""
168
from bzrlib.errors import NotAncestor, NoSuchRevision
169
assert len(self.intervene('a@u-0-0', 'a@u-0-0')) == 0
170
self.assertEqual(self.intervene('a@u-0-0', 'a@u-0-1'), ['a@u-0-1'])
171
self.assertEqual(self.intervene('a@u-0-0', 'a@u-0-2'),
172
['a@u-0-1', 'a@u-0-2'])
173
self.assertEqual(self.intervene('a@u-0-0', 'b@u-0-3'),
174
['a@u-0-1', 'a@u-0-2', 'b@u-0-3'])
175
self.assertEqual(self.intervene('b@u-0-3', 'a@u-0-3'),
176
['b@u-0-4', 'a@u-0-3'])
177
self.assertEqual(self.intervene('a@u-0-2', 'a@u-0-3',
178
self.br1.revision_history()),
180
self.assertEqual(self.intervene('a@u-0-0', 'a@u-0-5',
181
self.br1.revision_history()),
182
['a@u-0-1', 'a@u-0-2', 'a@u-0-3', 'a@u-0-4',
184
print ("testrevision.py 191 - intervene appears to return b..6 even"
185
"though it is not reachable!")
186
# self.assertEqual(self.intervene('a@u-0-0', 'b@u-0-6',
187
# self.br1.revision_history()),
188
# ['a@u-0-1', 'a@u-0-2', 'a@u-0-3', 'a@u-0-4',
190
# self.assertEqual(self.intervene('a@u-0-0', 'b@u-0-5'),
191
# ['a@u-0-1', 'a@u-0-2', 'b@u-0-3', 'b@u-0-4',
193
self.assertEqual(self.intervene('b@u-0-3', 'b@u-0-6',
194
self.br2.revision_history()),
195
['b@u-0-4', 'b@u-0-5', 'b@u-0-6'])
196
self.assertEqual(self.intervene('b@u-0-6', 'b@u-0-10'),
197
['b@u-0-7', 'b@u-0-8', 'b@u-0-9', 'b@u-0-10'])
198
self.assertEqual(self.intervene('b@u-0-6', 'b@u-0-10',
199
self.br2.revision_history()),
200
['b@u-0-7', 'b@u-0-8', 'b@u-0-9', 'b@u-0-10'])
201
self.assertRaises(NotAncestor, self.intervene, 'b@u-0-10', 'b@u-0-6',
202
self.br2.revision_history())
203
self.assertRaises(NoSuchRevision, self.intervene, 'c@u-0-10',
204
'b@u-0-6', self.br2.revision_history())
205
self.assertRaises(NoSuchRevision, self.intervene, 'b@u-0-10',
206
'c@u-0-6', self.br2.revision_history())
209
class TestCommonAncestor(TestCaseInTempDir):
166
self.sources = MultipleRevisionSources(self.br1.repository,
171
class MockRevisionSource(object):
172
"""A RevisionSource that takes a pregenerated graph.
174
This is useful for testing revision graph algorithms where
175
the actual branch existing is irrelevant.
178
def __init__(self, full_graph):
179
self._full_graph = full_graph
181
def get_revision_graph_with_ghosts(self, revision_ids):
182
# This is mocked out to just return a constant graph.
183
return self._full_graph
186
class TestCommonAncestor(TestCaseWithTransport):
210
187
"""Test checking whether a revision is an ancestor of another revision"""
212
def test_old_common_ancestor(self):
213
"""Pick a resonable merge base using the old functionality"""
214
from bzrlib.revision import old_common_ancestor as common_ancestor
215
br1, br2 = make_branches()
216
revisions = br1.revision_history()
217
revisions_2 = br2.revision_history()
220
expected_ancestors_list = {revisions[3]:(0, 0),
222
revisions_2[4]:(2, 1),
224
revisions_2[3]:(4, 2),
225
revisions[0]:(5, 3) }
226
ancestors_list = find_present_ancestors(revisions[3], sources)
227
assert len(expected_ancestors_list) == len(ancestors_list)
228
for key, value in expected_ancestors_list.iteritems():
229
self.assertEqual(ancestors_list[key], value,
230
"key %r, %r != %r" % (key, ancestors_list[key],
233
self.assertEqual(common_ancestor(revisions[0], revisions[0], sources),
235
self.assertEqual(common_ancestor(revisions[1], revisions[2], sources),
237
self.assertEqual(common_ancestor(revisions[1], revisions[1], sources),
239
self.assertEqual(common_ancestor(revisions[2], revisions_2[4], sources),
241
self.assertEqual(common_ancestor(revisions[3], revisions_2[4], sources),
243
self.assertEqual(common_ancestor(revisions[4], revisions_2[5], sources),
245
fetch(from_branch=br2, to_branch=br1)
246
self.assertEqual(common_ancestor(revisions[5], revisions_2[6], sources),
247
revisions[4]) # revisions_2[5] is equally valid
248
self.assertEqual(common_ancestor(revisions_2[6], revisions[5], sources),
251
189
def test_common_ancestor(self):
252
190
"""Pick a reasonable merge base"""
253
from bzrlib.revision import common_ancestor
254
br1, br2 = make_branches()
191
br1, br2 = make_branches(self)
255
192
revisions = br1.revision_history()
256
193
revisions_2 = br2.revision_history()
257
sources = MultipleRevisionSources(br1, br2)
194
sources = MultipleRevisionSources(br1.repository, br2.repository)
258
195
expected_ancestors_list = {revisions[3]:(0, 0),
259
196
revisions[2]:(1, 1),
260
197
revisions_2[4]:(2, 1),
280
217
self.assertEqual(common_ancestor(revisions[4], revisions_2[5], sources),
282
self.assertEqual(common_ancestor(revisions[5], revisions_2[6], sources),
283
revisions[4]) # revisions_2[5] is equally valid
284
self.assertEqual(common_ancestor(revisions_2[6], revisions[5], sources),
285
revisions[4]) # revisions_2[5] is equally valid
219
self.assertTrue(common_ancestor(revisions[5], revisions_2[6], sources) in
220
(revisions[4], revisions_2[5]))
221
self.assertTrue(common_ancestor(revisions_2[6], revisions[5], sources),
222
(revisions[4], revisions_2[5]))
223
self.assertEqual(None, common_ancestor(None, revisions[5], sources))
224
self.assertEqual(NULL_REVISION,
225
common_ancestor(NULL_REVISION, NULL_REVISION, sources))
226
self.assertEqual(NULL_REVISION,
227
common_ancestor(revisions[0], NULL_REVISION, sources))
228
self.assertEqual(NULL_REVISION,
229
common_ancestor(NULL_REVISION, revisions[0], sources))
287
231
def test_combined(self):
288
232
"""combined_graph
289
233
Ensure it's not order-sensitive
291
br1, br2 = make_branches()
292
source = MultipleRevisionSources(br1, br2)
293
combined_1 = combined_graph(br1.last_revision(),
235
br1, br2 = make_branches(self)
236
source = MultipleRevisionSources(br1.repository, br2.repository)
237
combined_1 = combined_graph(br1.last_revision(),
294
238
br2.last_revision(), source)
295
239
combined_2 = combined_graph(br2.last_revision(),
296
240
br1.last_revision(), source)
297
assert combined_1[1] == combined_2[1]
298
assert combined_1[2] == combined_2[2]
299
assert combined_1[3] == combined_2[3]
300
assert combined_1 == combined_2
241
self.assertEquals(combined_1[1], combined_2[1])
242
self.assertEquals(combined_1[2], combined_2[2])
243
self.assertEquals(combined_1[3], combined_2[3])
244
self.assertEquals(combined_1, combined_2)
246
def test_get_history(self):
247
# TODO: test ghosts on the left hand branch's impact
248
# TODO: test ghosts on all parents, we should get some
249
# indicator. i.e. NULL_REVISION
251
tree = self.make_branch_and_tree('.')
252
tree.commit('1', rev_id = '1', allow_pointless=True)
253
tree.commit('2', rev_id = '2', allow_pointless=True)
254
tree.commit('3', rev_id = '3', allow_pointless=True)
255
rev = tree.branch.repository.get_revision('1')
256
history = rev.get_history(tree.branch.repository)
257
self.assertEqual([None, '1'], history)
258
rev = tree.branch.repository.get_revision('2')
259
history = rev.get_history(tree.branch.repository)
260
self.assertEqual([None, '1', '2'], history)
261
rev = tree.branch.repository.get_revision('3')
262
history = rev.get_history(tree.branch.repository)
263
self.assertEqual([None, '1', '2' ,'3'], history)
265
def test_common_ancestor_rootless_graph(self):
266
# common_ancestor on a graph with no reachable roots - only
267
# ghosts - should still return a useful value.
269
# add a ghost node which would be a root if it wasn't a ghost.
270
graph.add_ghost('a_ghost')
271
# add a normal commit on top of that
272
graph.add_node('rev1', ['a_ghost'])
273
# add a left-branch revision
274
graph.add_node('left', ['rev1'])
275
# add a right-branch revision
276
graph.add_node('right', ['rev1'])
277
source = MockRevisionSource(graph)
278
self.assertEqual('rev1', common_ancestor('left', 'right', source))
281
class TestMultipleRevisionSources(TestCaseWithTransport):
282
"""Tests for the MultipleRevisionSources adapter."""
284
def test_get_revision_graph_merges_ghosts(self):
285
# when we ask for the revision graph for B, which
286
# is in repo 1 with a ghost of A, and which is not
287
# in repo 2, which has A, the revision_graph()
288
# should return A and B both.
289
tree_1 = self.make_branch_and_tree('1')
290
tree_1.set_parent_ids(['A'], allow_leftmost_as_ghost=True)
291
tree_1.commit('foo', rev_id='B', allow_pointless=True)
292
tree_2 = self.make_branch_and_tree('2')
293
tree_2.commit('bar', rev_id='A', allow_pointless=True)
294
source = MultipleRevisionSources(tree_1.branch.repository,
295
tree_2.branch.repository)
296
self.assertEqual({'B':['A'],
298
source.get_revision_graph('B'))
301
class TestReservedId(TestCase):
303
def test_is_reserved_id(self):
304
self.assertEqual(True, revision.is_reserved_id(NULL_REVISION))
305
self.assertEqual(True, revision.is_reserved_id(
306
revision.CURRENT_REVISION))
307
self.assertEqual(True, revision.is_reserved_id('arch:'))
308
self.assertEqual(False, revision.is_reserved_id('null'))
309
self.assertEqual(False, revision.is_reserved_id(
310
'arch:a@example.com/c--b--v--r'))
311
self.assertEqual(False, revision.is_reserved_id(None))
added
removed
bzrlib/tests/test_revision.py
