1
# Copyright (C) 2004, 2005 by Canonical Ltd
3
# This program is free software; you can redistribute it and/or modify
4
# it under the terms of the GNU General Public License as published by
5
# the Free Software Foundation; either version 2 of the License, or
6
# (at your option) any later version.
8
# This program is distributed in the hope that it will be useful,
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11
# GNU General Public License for more details.
13
# You should have received a copy of the GNU General Public License
14
# along with this program; if not, write to the Free Software
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18
from bzrlib.selftest import InTempDir, TestCase
19
from bzrlib.merge3 import Merge3
22
from cStringIO import StringIO
23
return StringIO(t).readlines()
25
############################################################
26
# test case data from the gnu diffutils manual
28
TZU = split_lines(""" The Nameless is the origin of Heaven and Earth;
29
The named is the mother of all things.
31
Therefore let there always be non-being,
32
so we may see their subtlety,
33
And let there always be being,
34
so we may see their outcome.
36
But after they are produced,
37
they have different names.
38
They both may be called deep and profound.
39
Deeper and more profound,
40
The door of all subtleties!
43
LAO = split_lines(""" The Way that can be told of is not the eternal Way;
44
The name that can be named is not the eternal name.
45
The Nameless is the origin of Heaven and Earth;
46
The Named is the mother of all things.
47
Therefore let there always be non-being,
48
so we may see their subtlety,
49
And let there always be being,
50
so we may see their outcome.
52
But after they are produced,
53
they have different names.
57
TAO = split_lines(""" The Way that can be told of is not the eternal Way;
58
The name that can be named is not the eternal name.
59
The Nameless is the origin of Heaven and Earth;
60
The named is the mother of all things.
62
Therefore let there always be non-being,
63
so we may see their subtlety,
64
And let there always be being,
65
so we may see their result.
67
But after they are produced,
68
they have different names.
70
-- The Way of Lao-Tzu, tr. Wing-tsit Chan
74
MERGED_RESULT = split_lines(""" The Way that can be told of is not the eternal Way;
75
The name that can be named is not the eternal name.
76
The Nameless is the origin of Heaven and Earth;
77
The Named is the mother of all things.
78
Therefore let there always be non-being,
79
so we may see their subtlety,
80
And let there always be being,
81
so we may see their result.
83
But after they are produced,
84
they have different names.
88
-- The Way of Lao-Tzu, tr. Wing-tsit Chan
93
class TestMerge3(TestCase):
95
def test_no_changes(self):
96
"""No conflicts because nothing changed"""
97
m3 = Merge3(['aaa', 'bbb'],
101
self.assertEquals(m3.find_unconflicted(),
104
self.assertEquals(list(m3.find_sync_regions()),
110
self.assertEquals(list(m3.merge_regions()),
111
[('unchanged', 0, 2)])
113
self.assertEquals(list(m3.merge_groups()),
114
[('unchanged', ['aaa', 'bbb'])])
116
def test_front_insert(self):
118
['aaa', 'bbb', 'zz'],
121
# todo: should use a sentinal at end as from get_matching_blocks
122
# to match without zz
123
self.assertEquals(list(m3.find_sync_regions()),
127
self.assertEquals(list(m3.merge_regions()),
129
('unchanged', 0, 1)])
131
self.assertEquals(list(m3.merge_groups()),
132
[('a', ['aaa', 'bbb']),
133
('unchanged', ['zz'])])
135
def test_null_insert(self):
139
# todo: should use a sentinal at end as from get_matching_blocks
140
# to match without zz
141
self.assertEquals(list(m3.find_sync_regions()),
144
self.assertEquals(list(m3.merge_regions()),
147
self.assertEquals(list(m3.merge_lines()),
150
def test_no_conflicts(self):
151
"""No conflicts because only one side changed"""
152
m3 = Merge3(['aaa', 'bbb'],
153
['aaa', '111', 'bbb'],
156
self.assertEquals(m3.find_unconflicted(),
159
self.assertEquals(list(m3.find_sync_regions()),
164
self.assertEquals(list(m3.merge_regions()),
165
[('unchanged', 0, 1),
167
('unchanged', 1, 2),])
169
def test_append_a(self):
170
m3 = Merge3(['aaa\n', 'bbb\n'],
171
['aaa\n', 'bbb\n', '222\n'],
174
self.assertEquals(''.join(m3.merge_lines()),
177
def test_append_b(self):
178
m3 = Merge3(['aaa\n', 'bbb\n'],
180
['aaa\n', 'bbb\n', '222\n'])
182
self.assertEquals(''.join(m3.merge_lines()),
185
def test_append_agreement(self):
186
m3 = Merge3(['aaa\n', 'bbb\n'],
187
['aaa\n', 'bbb\n', '222\n'],
188
['aaa\n', 'bbb\n', '222\n'])
190
self.assertEquals(''.join(m3.merge_lines()),
193
def test_append_clash(self):
194
m3 = Merge3(['aaa\n', 'bbb\n'],
195
['aaa\n', 'bbb\n', '222\n'],
196
['aaa\n', 'bbb\n', '333\n'])
198
ml = m3.merge_lines(name_a='a',
203
self.assertEquals(''.join(ml),
214
def test_insert_agreement(self):
215
m3 = Merge3(['aaa\n', 'bbb\n'],
216
['aaa\n', '222\n', 'bbb\n'],
217
['aaa\n', '222\n', 'bbb\n'])
219
ml = m3.merge_lines(name_a='a',
224
self.assertEquals(''.join(m3.merge_lines()),
227
def test_insert_clash(self):
228
"""Both try to insert lines in the same place."""
229
m3 = Merge3(['aaa\n', 'bbb\n'],
230
['aaa\n', '111\n', 'bbb\n'],
231
['aaa\n', '222\n', 'bbb\n'])
233
self.assertEquals(m3.find_unconflicted(),
236
self.assertEquals(list(m3.find_sync_regions()),
241
self.assertEquals(list(m3.merge_regions()),
243
('conflict', 1,1, 1,2, 1,2),
246
self.assertEquals(list(m3.merge_groups()),
247
[('unchanged', ['aaa\n']),
248
('conflict', [], ['111\n'], ['222\n']),
249
('unchanged', ['bbb\n']),
252
ml = m3.merge_lines(name_a='a',
257
self.assertEquals(''.join(ml),
267
def test_replace_clash(self):
268
"""Both try to insert lines in the same place."""
269
m3 = Merge3(['aaa', '000', 'bbb'],
270
['aaa', '111', 'bbb'],
271
['aaa', '222', 'bbb'])
273
self.assertEquals(m3.find_unconflicted(),
276
self.assertEquals(list(m3.find_sync_regions()),
281
def test_replace_multi(self):
282
"""Replacement with regions of different size."""
283
m3 = Merge3(['aaa', '000', '000', 'bbb'],
284
['aaa', '111', '111', '111', 'bbb'],
285
['aaa', '222', '222', '222', '222', 'bbb'])
287
self.assertEquals(m3.find_unconflicted(),
291
self.assertEquals(list(m3.find_sync_regions()),
296
def test_merge_poem(self):
297
"""Test case from diff3 manual"""
298
m3 = Merge3(TZU, LAO, TAO)
299
ml = list(m3.merge_lines('LAO', 'TAO'))
300
self.log('merge result:')
301
self.log(''.join(ml))
302
self.assertEquals(ml, MERGED_RESULT)
305
TEST_CLASSES = [ TestMerge3 ]
added
removed
bzrlib/selftest/testmerge3.py
