1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
|
# Copyright (C) 2006 Canonical Ltd
#
# 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
#
# Author: Aaron Bentley <aaron.bentley@utoronto.ca>
"""Black-box tests for bzr merge.
"""
import os
from bzrlib.branch import Branch
from bzrlib.bzrdir import BzrDir
from bzrlib.conflicts import ConflictList
from bzrlib.osutils import abspath
from bzrlib.tests.blackbox import ExternalBase
import bzrlib.urlutils as urlutils
from bzrlib.workingtree import WorkingTree
class TestMerge(ExternalBase):
def example_branch(test):
test.runbzr('init')
file('hello', 'wt').write('foo')
test.runbzr('add hello')
test.runbzr('commit -m setup hello')
file('goodbye', 'wt').write('baz')
test.runbzr('add goodbye')
test.runbzr('commit -m setup goodbye')
def test_merge_reprocess(self):
d = BzrDir.create_standalone_workingtree('.')
d.commit('h')
self.run_bzr('merge', '.', '--reprocess', '--merge-type', 'weave')
def test_merge(self):
from bzrlib.branch import Branch
os.mkdir('a')
os.chdir('a')
self.example_branch()
ancestor = Branch.open('.').revno()
os.chdir('..')
self.runbzr('branch a b')
os.chdir('b')
file('goodbye', 'wt').write('quux')
self.runbzr(['commit', '-m', "more u's are always good"])
os.chdir('../a')
file('hello', 'wt').write('quuux')
# We can't merge when there are in-tree changes
self.runbzr('merge ../b', retcode=3)
a = WorkingTree.open('.')
a_tip = a.commit("Like an epidemic of u's")
self.runbzr('merge ../b -r last:1..last:1 --merge-type blooof',
retcode=3)
self.runbzr('merge ../b -r last:1..last:1 --merge-type merge3')
self.runbzr('revert --no-backup')
self.runbzr('merge ../b -r last:1..last:1 --merge-type weave')
self.runbzr('revert --no-backup')
self.runbzr('merge ../b -r last:1..last:1 --reprocess')
self.runbzr('revert --no-backup')
self.runbzr('merge ../b -r last:1')
self.check_file_contents('goodbye', 'quux')
# Merging a branch pulls its revision into the tree
b = Branch.open('../b')
b_tip = b.last_revision()
self.failUnless(a.branch.repository.has_revision(b_tip))
self.assertEqual([a_tip, b_tip], a.get_parent_ids())
self.runbzr('revert --no-backup')
out, err = self.runbzr('merge -r revno:1:./hello', retcode=3)
self.assertTrue("Not a branch" in err)
self.runbzr('merge -r revno:%d:./..revno:%d:../b'
%(ancestor,b.revno()))
self.assertEquals(a.get_parent_ids(),
[a.branch.last_revision(), b.last_revision()])
self.check_file_contents('goodbye', 'quux')
self.runbzr('revert --no-backup')
self.runbzr('merge -r revno:%d:../b'%b.revno())
self.assertEquals(a.get_parent_ids(),
[a.branch.last_revision(), b.last_revision()])
a_tip = a.commit('merged')
self.runbzr('merge ../b -r last:1')
self.assertEqual([a_tip], a.get_parent_ids())
def test_merge_with_missing_file(self):
"""Merge handles missing file conflicts"""
os.mkdir('a')
os.chdir('a')
os.mkdir('sub')
print >> file('sub/a.txt', 'wb'), "hello"
print >> file('b.txt', 'wb'), "hello"
print >> file('sub/c.txt', 'wb'), "hello"
self.runbzr('init')
self.runbzr('add')
self.runbzr(('commit', '-m', 'added a'))
self.runbzr('branch . ../b')
print >> file('sub/a.txt', 'ab'), "there"
print >> file('b.txt', 'ab'), "there"
print >> file('sub/c.txt', 'ab'), "there"
self.runbzr(('commit', '-m', 'Added there'))
os.unlink('sub/a.txt')
os.unlink('sub/c.txt')
os.rmdir('sub')
os.unlink('b.txt')
self.runbzr(('commit', '-m', 'Removed a.txt'))
os.chdir('../b')
print >> file('sub/a.txt', 'ab'), "something"
print >> file('b.txt', 'ab'), "something"
print >> file('sub/c.txt', 'ab'), "something"
self.runbzr(('commit', '-m', 'Modified a.txt'))
self.runbzr('merge ../a/', retcode=1)
self.assert_(os.path.exists('sub/a.txt.THIS'))
self.assert_(os.path.exists('sub/a.txt.BASE'))
os.chdir('../a')
self.runbzr('merge ../b/', retcode=1)
self.assert_(os.path.exists('sub/a.txt.OTHER'))
self.assert_(os.path.exists('sub/a.txt.BASE'))
def test_merge_remember(self):
"""Merge changes from one branch to another and test parent location."""
tree_a = self.make_branch_and_tree('branch_a')
branch_a = tree_a.branch
self.build_tree(['branch_a/a'])
tree_a.add('a')
tree_a.commit('commit a')
branch_b = branch_a.bzrdir.sprout('branch_b').open_branch()
tree_b = branch_b.bzrdir.open_workingtree()
branch_c = branch_a.bzrdir.sprout('branch_c').open_branch()
tree_c = branch_c.bzrdir.open_workingtree()
self.build_tree(['branch_a/b'])
tree_a.add('b')
tree_a.commit('commit b')
self.build_tree(['branch_c/c'])
tree_c.add('c')
tree_c.commit('commit c')
# reset parent
parent = branch_b.get_parent()
branch_b.set_parent(None)
self.assertEqual(None, branch_b.get_parent())
# test merge for failure without parent set
os.chdir('branch_b')
out = self.runbzr('merge', retcode=3)
self.assertEquals(out,
('','bzr: ERROR: No location specified or remembered\n'))
# test implicit --remember when no parent set, this merge conflicts
self.build_tree(['d'])
tree_b.add('d')
out = self.runbzr('merge ../branch_a', retcode=3)
self.assertEquals(out,
('','bzr: ERROR: Working tree has uncommitted changes.\n'))
self.assertEquals(abspath(branch_b.get_parent()), abspath(parent))
# test implicit --remember after resolving conflict
tree_b.commit('commit d')
out, err = self.runbzr('merge')
base = urlutils.local_path_from_url(branch_a.base)
self.assertEquals(out, 'Merging from remembered location %s\n' % (base,))
self.assertEquals(err, 'All changes applied successfully.\n')
self.assertEquals(abspath(branch_b.get_parent()), abspath(parent))
# re-open tree as external runbzr modified it
tree_b = branch_b.bzrdir.open_workingtree()
tree_b.commit('merge branch_a')
# test explicit --remember
out, err = self.runbzr('merge ../branch_c --remember')
self.assertEquals(out, '')
self.assertEquals(err, 'All changes applied successfully.\n')
self.assertEquals(abspath(branch_b.get_parent()),
abspath(branch_c.bzrdir.root_transport.base))
# re-open tree as external runbzr modified it
tree_b = branch_b.bzrdir.open_workingtree()
tree_b.commit('merge branch_c')
def test_merge_bundle(self):
from bzrlib.testament import Testament
tree_a = self.make_branch_and_tree('branch_a')
f = file('branch_a/a', 'wb')
f.write('hello')
f.close()
tree_a.add('a')
tree_a.commit('message')
tree_b = tree_a.bzrdir.sprout('branch_b').open_workingtree()
f = file('branch_a/a', 'wb')
f.write('hey there')
f.close()
tree_a.commit('message')
f = file('branch_b/a', 'wb')
f.write('goodbye')
f.close()
tree_b.commit('message')
os.chdir('branch_b')
file('../bundle', 'wb').write(self.runbzr('bundle ../branch_a')[0])
os.chdir('../branch_a')
self.runbzr('merge ../bundle', retcode=1)
testament_a = Testament.from_revision(tree_a.branch.repository,
tree_b.get_parent_ids()[0])
testament_b = Testament.from_revision(tree_b.branch.repository,
tree_b.get_parent_ids()[0])
self.assertEqualDiff(testament_a.as_text(),
testament_b.as_text())
tree_a.set_conflicts(ConflictList())
tree_a.commit('message')
# it is legal to attempt to merge an already-merged bundle
output = self.runbzr('merge ../bundle')[1]
# but it does nothing
self.assertFalse(tree_a.changes_from(tree_a.basis_tree()).has_changed())
self.assertEqual('Nothing to do.\n', output)
def test_merge_uncommitted(self):
"""Check that merge --uncommitted behaves properly"""
tree_a = self.make_branch_and_tree('a')
self.build_tree(['a/file_1', 'a/file_2'])
tree_a.add(['file_1', 'file_2'])
tree_a.commit('commit 1')
tree_b = tree_a.bzrdir.sprout('b').open_workingtree()
self.failUnlessExists('b/file_1')
tree_a.rename_one('file_1', 'file_i')
tree_a.commit('commit 2')
tree_a.rename_one('file_2', 'file_ii')
os.chdir('b')
self.run_bzr('merge', '../a', '--uncommitted')
self.failUnlessExists('file_1')
self.failUnlessExists('file_ii')
tree_b.revert([])
self.run_bzr_error(('Cannot use --uncommitted and --revision',),
'merge', '../a', '--uncommitted', '-r1')
def pullable_branch(self):
os.mkdir('a')
os.chdir('a')
self.example_branch()
os.chdir('..')
self.runbzr('branch a b')
os.chdir('b')
file('goodbye', 'wt').write('quux')
self.runbzr(['commit', '-m', "mode u's are always good"])
os.chdir('../a')
def pullable_branch(self):
tree_a = self.make_branch_and_tree('a')
self.build_tree(['a/file'])
tree_a.add(['file'])
self.id1 = tree_a.commit('commit 1')
tree_b = self.make_branch_and_tree('b')
tree_b.pull(tree_a.branch)
file('b/file', 'wb').write('foo')
self.id2 = tree_b.commit('commit 2')
def test_merge_pull(self):
self.pullable_branch()
os.chdir('a')
(out, err) = self.run_bzr('merge', '--pull', '../b')
self.assertContainsRe(err, '1 revision\\(s\\) pulled')
tree_a = WorkingTree.open('.')
self.assertEqual([self.id2], tree_a.get_parent_ids())
|