~bzr-pqm/bzr/bzr.dev

« back to all changes in this revision

Viewing changes to bzrlib/tests/blackbox/test_pull.py

Turn completion assertions into separate methods.

Many common assertions used to be expressed as arguments to the complete
method.  This makes the checks more explicit, and the code easier to read.

Show diffs side-by-side

added added

removed removed

Lines of Context:
1
 
# Copyright (C) 2005-2010 Canonical Ltd
2
 
#
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.
7
 
#
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.
12
 
#
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
16
 
 
17
 
 
18
 
"""Black-box tests for bzr pull."""
19
 
 
20
 
import os
21
 
import sys
22
 
 
23
 
from bzrlib import (
24
 
    debug,
25
 
    remote,
26
 
    urlutils,
27
 
    )
28
 
 
29
 
from bzrlib.branch import Branch
30
 
from bzrlib.directory_service import directories
31
 
from bzrlib.osutils import pathjoin
32
 
from bzrlib.tests import (
33
 
    fixtures,
34
 
    TestCaseWithTransport,
35
 
    )
36
 
from bzrlib.uncommit import uncommit
37
 
from bzrlib.workingtree import WorkingTree
38
 
 
39
 
 
40
 
class TestPull(TestCaseWithTransport):
41
 
 
42
 
    def example_branch(self, path='.'):
43
 
        tree = self.make_branch_and_tree(path)
44
 
        self.build_tree_contents([
45
 
            (pathjoin(path, 'hello'),   'foo'),
46
 
            (pathjoin(path, 'goodbye'), 'baz')])
47
 
        tree.add('hello')
48
 
        tree.commit(message='setup')
49
 
        tree.add('goodbye')
50
 
        tree.commit(message='setup')
51
 
        return tree
52
 
 
53
 
    def test_pull(self):
54
 
        """Pull changes from one branch to another."""
55
 
        a_tree = self.example_branch('a')
56
 
        os.chdir('a')
57
 
        self.run_bzr('pull', retcode=3)
58
 
        self.run_bzr('missing', retcode=3)
59
 
        self.run_bzr('missing .')
60
 
        self.run_bzr('missing')
61
 
        # this will work on windows because we check for the same branch
62
 
        # in pull - if it fails, it is a regression
63
 
        self.run_bzr('pull')
64
 
        self.run_bzr('pull /', retcode=3)
65
 
        if sys.platform not in ('win32', 'cygwin'):
66
 
            self.run_bzr('pull')
67
 
 
68
 
        os.chdir('..')
69
 
        b_tree = a_tree.bzrdir.sprout('b').open_workingtree()
70
 
        os.chdir('b')
71
 
        self.run_bzr('pull')
72
 
        os.mkdir('subdir')
73
 
        b_tree.add('subdir')
74
 
        b_tree.commit(message='blah', allow_pointless=True)
75
 
 
76
 
        os.chdir('..')
77
 
        a = Branch.open('a')
78
 
        b = Branch.open('b')
79
 
        self.assertEqual(a.revision_history(), b.revision_history()[:-1])
80
 
 
81
 
        os.chdir('a')
82
 
        self.run_bzr('pull ../b')
83
 
        self.assertEqual(a.revision_history(), b.revision_history())
84
 
        a_tree.commit(message='blah2', allow_pointless=True)
85
 
        b_tree.commit(message='blah3', allow_pointless=True)
86
 
        # no overwrite
87
 
        os.chdir('../b')
88
 
        self.run_bzr('pull ../a', retcode=3)
89
 
        os.chdir('..')
90
 
        b_tree.bzrdir.sprout('overwriteme')
91
 
        os.chdir('overwriteme')
92
 
        self.run_bzr('pull --overwrite ../a')
93
 
        overwritten = Branch.open('.')
94
 
        self.assertEqual(overwritten.revision_history(),
95
 
                         a.revision_history())
96
 
        a_tree.merge_from_branch(b_tree.branch)
97
 
        a_tree.commit(message="blah4", allow_pointless=True)
98
 
        os.chdir('../b/subdir')
99
 
        self.run_bzr('pull ../../a')
100
 
        self.assertEqual(a.revision_history()[-1], b.revision_history()[-1])
101
 
        sub_tree = WorkingTree.open_containing('.')[0]
102
 
        sub_tree.commit(message="blah5", allow_pointless=True)
103
 
        sub_tree.commit(message="blah6", allow_pointless=True)
104
 
        os.chdir('..')
105
 
        self.run_bzr('pull ../a')
106
 
        os.chdir('../a')
107
 
        a_tree.commit(message="blah7", allow_pointless=True)
108
 
        a_tree.merge_from_branch(b_tree.branch)
109
 
        a_tree.commit(message="blah8", allow_pointless=True)
110
 
        self.run_bzr('pull ../b')
111
 
        self.run_bzr('pull ../b')
112
 
 
113
 
    def test_pull_dash_d(self):
114
 
        self.example_branch('a')
115
 
        self.make_branch_and_tree('b')
116
 
        self.make_branch_and_tree('c')
117
 
        # pull into that branch
118
 
        self.run_bzr('pull -d b a')
119
 
        # pull into a branch specified by a url
120
 
        c_url = urlutils.local_path_to_url('c')
121
 
        self.assertStartsWith(c_url, 'file://')
122
 
        self.run_bzr(['pull', '-d', c_url, 'a'])
123
 
 
124
 
    def test_pull_revision(self):
125
 
        """Pull some changes from one branch to another."""
126
 
        a_tree = self.example_branch('a')
127
 
        self.build_tree_contents([
128
 
            ('a/hello2',   'foo'),
129
 
            ('a/goodbye2', 'baz')])
130
 
        a_tree.add('hello2')
131
 
        a_tree.commit(message="setup")
132
 
        a_tree.add('goodbye2')
133
 
        a_tree.commit(message="setup")
134
 
 
135
 
        b_tree = a_tree.bzrdir.sprout('b',
136
 
                   revision_id=a_tree.branch.get_rev_id(1)).open_workingtree()
137
 
        os.chdir('b')
138
 
        self.run_bzr('pull -r 2')
139
 
        a = Branch.open('../a')
140
 
        b = Branch.open('.')
141
 
        self.assertEqual(a.revno(),4)
142
 
        self.assertEqual(b.revno(),2)
143
 
        self.run_bzr('pull -r 3')
144
 
        self.assertEqual(b.revno(),3)
145
 
        self.run_bzr('pull -r 4')
146
 
        self.assertEqual(a.revision_history(), b.revision_history())
147
 
 
148
 
    def test_pull_tags(self):
149
 
        """Tags are updated by pull, and revisions named in those tags are
150
 
        fetched.
151
 
        """
152
 
        # Make a source, sprout a target off it
153
 
        builder = self.make_branch_builder('source')
154
 
        source = fixtures.build_branch_with_non_ancestral_rev(builder)
155
 
        target_bzrdir = source.bzrdir.sprout('target')
156
 
        source.tags.set_tag('tag-a', 'rev-2')
157
 
        # Pull from source
158
 
        self.run_bzr('pull -d target source')
159
 
        target = target_bzrdir.open_branch()
160
 
        # The tag is present, and so is its revision.
161
 
        self.assertEqual('rev-2', target.tags.lookup_tag('tag-a'))
162
 
        target.repository.get_revision('rev-2')
163
 
 
164
 
    def test_overwrite_uptodate(self):
165
 
        # Make sure pull --overwrite overwrites
166
 
        # even if the target branch has merged
167
 
        # everything already.
168
 
        a_tree = self.make_branch_and_tree('a')
169
 
        self.build_tree_contents([('a/foo', 'original\n')])
170
 
        a_tree.add('foo')
171
 
        a_tree.commit(message='initial commit')
172
 
 
173
 
        b_tree = a_tree.bzrdir.sprout('b').open_workingtree()
174
 
 
175
 
        self.build_tree_contents([('a/foo', 'changed\n')])
176
 
        a_tree.commit(message='later change')
177
 
 
178
 
        self.build_tree_contents([('a/foo', 'a third change')])
179
 
        a_tree.commit(message='a third change')
180
 
 
181
 
        rev_history_a = a_tree.branch.revision_history()
182
 
        self.assertEqual(len(rev_history_a), 3)
183
 
 
184
 
        b_tree.merge_from_branch(a_tree.branch)
185
 
        b_tree.commit(message='merge')
186
 
 
187
 
        self.assertEqual(len(b_tree.branch.revision_history()), 2)
188
 
 
189
 
        os.chdir('b')
190
 
        self.run_bzr('pull --overwrite ../a')
191
 
        rev_history_b = b_tree.branch.revision_history()
192
 
        self.assertEqual(len(rev_history_b), 3)
193
 
 
194
 
        self.assertEqual(rev_history_b, rev_history_a)
195
 
 
196
 
    def test_overwrite_children(self):
197
 
        # Make sure pull --overwrite sets the revision-history
198
 
        # to be identical to the pull source, even if we have convergence
199
 
        a_tree = self.make_branch_and_tree('a')
200
 
        self.build_tree_contents([('a/foo', 'original\n')])
201
 
        a_tree.add('foo')
202
 
        a_tree.commit(message='initial commit')
203
 
 
204
 
        b_tree = a_tree.bzrdir.sprout('b').open_workingtree()
205
 
 
206
 
        self.build_tree_contents([('a/foo', 'changed\n')])
207
 
        a_tree.commit(message='later change')
208
 
 
209
 
        self.build_tree_contents([('a/foo', 'a third change')])
210
 
        a_tree.commit(message='a third change')
211
 
 
212
 
        self.assertEqual(len(a_tree.branch.revision_history()), 3)
213
 
 
214
 
        b_tree.merge_from_branch(a_tree.branch)
215
 
        b_tree.commit(message='merge')
216
 
 
217
 
        self.assertEqual(len(b_tree.branch.revision_history()), 2)
218
 
 
219
 
        self.build_tree_contents([('a/foo', 'a fourth change\n')])
220
 
        a_tree.commit(message='a fourth change')
221
 
 
222
 
        rev_history_a = a_tree.branch.revision_history()
223
 
        self.assertEqual(len(rev_history_a), 4)
224
 
 
225
 
        # With convergence, we could just pull over the
226
 
        # new change, but with --overwrite, we want to switch our history
227
 
        os.chdir('b')
228
 
        self.run_bzr('pull --overwrite ../a')
229
 
        rev_history_b = b_tree.branch.revision_history()
230
 
        self.assertEqual(len(rev_history_b), 4)
231
 
 
232
 
        self.assertEqual(rev_history_b, rev_history_a)
233
 
 
234
 
    def test_pull_remember(self):
235
 
        """Pull changes from one branch to another and test parent location."""
236
 
        transport = self.get_transport()
237
 
        tree_a = self.make_branch_and_tree('branch_a')
238
 
        branch_a = tree_a.branch
239
 
        self.build_tree(['branch_a/a'])
240
 
        tree_a.add('a')
241
 
        tree_a.commit('commit a')
242
 
        tree_b = branch_a.bzrdir.sprout('branch_b').open_workingtree()
243
 
        branch_b = tree_b.branch
244
 
        tree_c = branch_a.bzrdir.sprout('branch_c').open_workingtree()
245
 
        branch_c = tree_c.branch
246
 
        self.build_tree(['branch_a/b'])
247
 
        tree_a.add('b')
248
 
        tree_a.commit('commit b')
249
 
        # reset parent
250
 
        parent = branch_b.get_parent()
251
 
        branch_b.set_parent(None)
252
 
        self.assertEqual(None, branch_b.get_parent())
253
 
        # test pull for failure without parent set
254
 
        os.chdir('branch_b')
255
 
        out = self.run_bzr('pull', retcode=3)
256
 
        self.assertEqual(out,
257
 
                ('','bzr: ERROR: No pull location known or specified.\n'))
258
 
        # test implicit --remember when no parent set, this pull conflicts
259
 
        self.build_tree(['d'])
260
 
        tree_b.add('d')
261
 
        tree_b.commit('commit d')
262
 
        out = self.run_bzr('pull ../branch_a', retcode=3)
263
 
        self.assertEqual(out,
264
 
                ('','bzr: ERROR: These branches have diverged.'
265
 
                    ' Use the missing command to see how.\n'
266
 
                    'Use the merge command to reconcile them.\n'))
267
 
        self.assertEqual(branch_b.get_parent(), parent)
268
 
        # test implicit --remember after resolving previous failure
269
 
        uncommit(branch=branch_b, tree=tree_b)
270
 
        transport.delete('branch_b/d')
271
 
        self.run_bzr('pull')
272
 
        self.assertEqual(branch_b.get_parent(), parent)
273
 
        # test explicit --remember
274
 
        self.run_bzr('pull ../branch_c --remember')
275
 
        self.assertEqual(branch_b.get_parent(),
276
 
                          branch_c.bzrdir.root_transport.base)
277
 
 
278
 
    def test_pull_bundle(self):
279
 
        from bzrlib.testament import Testament
280
 
        # Build up 2 trees and prepare for a pull
281
 
        tree_a = self.make_branch_and_tree('branch_a')
282
 
        f = open('branch_a/a', 'wb')
283
 
        f.write('hello')
284
 
        f.close()
285
 
        tree_a.add('a')
286
 
        tree_a.commit('message')
287
 
 
288
 
        tree_b = tree_a.bzrdir.sprout('branch_b').open_workingtree()
289
 
 
290
 
        # Make a change to 'a' that 'b' can pull
291
 
        f = open('branch_a/a', 'wb')
292
 
        f.write('hey there')
293
 
        f.close()
294
 
        tree_a.commit('message')
295
 
 
296
 
        # Create the bundle for 'b' to pull
297
 
        os.chdir('branch_a')
298
 
        self.run_bzr('bundle ../branch_b -o ../bundle')
299
 
 
300
 
        os.chdir('../branch_b')
301
 
        out, err = self.run_bzr('pull ../bundle')
302
 
        self.assertEqual(out,
303
 
                         'Now on revision 2.\n')
304
 
        self.assertEqual(err,
305
 
                ' M  a\nAll changes applied successfully.\n')
306
 
 
307
 
        self.assertEqualDiff(tree_a.branch.revision_history(),
308
 
                             tree_b.branch.revision_history())
309
 
 
310
 
        testament_a = Testament.from_revision(tree_a.branch.repository,
311
 
                                              tree_a.get_parent_ids()[0])
312
 
        testament_b = Testament.from_revision(tree_b.branch.repository,
313
 
                                              tree_b.get_parent_ids()[0])
314
 
        self.assertEqualDiff(testament_a.as_text(),
315
 
                             testament_b.as_text())
316
 
 
317
 
        # it is legal to attempt to pull an already-merged bundle
318
 
        out, err = self.run_bzr('pull ../bundle')
319
 
        self.assertEqual(err, '')
320
 
        self.assertEqual(out, 'No revisions to pull.\n')
321
 
 
322
 
    def test_pull_verbose_no_files(self):
323
 
        """Pull --verbose should not list modified files"""
324
 
        tree_a = self.make_branch_and_tree('tree_a')
325
 
        self.build_tree(['tree_a/foo'])
326
 
        tree_a.add('foo')
327
 
        tree_a.commit('bar')
328
 
        tree_b = self.make_branch_and_tree('tree_b')
329
 
        out = self.run_bzr('pull --verbose -d tree_b tree_a')[0]
330
 
        self.assertContainsRe(out, 'bar')
331
 
        self.assertNotContainsRe(out, 'added:')
332
 
        self.assertNotContainsRe(out, 'foo')
333
 
 
334
 
    def test_pull_quiet(self):
335
 
        """Check that bzr pull --quiet does not print anything"""
336
 
        tree_a = self.make_branch_and_tree('tree_a')
337
 
        self.build_tree(['tree_a/foo'])
338
 
        tree_a.add('foo')
339
 
        revision_id = tree_a.commit('bar')
340
 
        tree_b = tree_a.bzrdir.sprout('tree_b').open_workingtree()
341
 
        out, err = self.run_bzr('pull --quiet -d tree_b')
342
 
        self.assertEqual(out, '')
343
 
        self.assertEqual(err, '')
344
 
        self.assertEqual(tree_b.last_revision(), revision_id)
345
 
        self.build_tree(['tree_a/moo'])
346
 
        tree_a.add('moo')
347
 
        revision_id = tree_a.commit('quack')
348
 
        out, err = self.run_bzr('pull --quiet -d tree_b')
349
 
        self.assertEqual(out, '')
350
 
        self.assertEqual(err, '')
351
 
        self.assertEqual(tree_b.last_revision(), revision_id)
352
 
 
353
 
    def test_pull_from_directory_service(self):
354
 
        source = self.make_branch_and_tree('source')
355
 
        source.commit('commit 1')
356
 
        target = source.bzrdir.sprout('target').open_workingtree()
357
 
        source_last = source.commit('commit 2')
358
 
        class FooService(object):
359
 
            """A directory service that always returns source"""
360
 
 
361
 
            def look_up(self, name, url):
362
 
                return 'source'
363
 
        directories.register('foo:', FooService, 'Testing directory service')
364
 
        self.addCleanup(directories.remove, 'foo:')
365
 
        self.run_bzr('pull foo:bar -d target')
366
 
        self.assertEqual(source_last, target.last_revision())
367
 
 
368
 
    def test_pull_verbose_defaults_to_long(self):
369
 
        tree = self.example_branch('source')
370
 
        target = self.make_branch_and_tree('target')
371
 
        out = self.run_bzr('pull -v source -d target')[0]
372
 
        self.assertContainsRe(out,
373
 
                              r'revno: 1\ncommitter: .*\nbranch nick: source')
374
 
        self.assertNotContainsRe(out, r'\n {4}1 .*\n {6}setup\n')
375
 
 
376
 
    def test_pull_verbose_uses_default_log(self):
377
 
        tree = self.example_branch('source')
378
 
        target = self.make_branch_and_tree('target')
379
 
        target_config = target.branch.get_config()
380
 
        target_config.set_user_option('log_format', 'short')
381
 
        out = self.run_bzr('pull -v source -d target')[0]
382
 
        self.assertContainsRe(out, r'\n {4}1 .*\n {6}setup\n')
383
 
        self.assertNotContainsRe(
384
 
            out, r'revno: 1\ncommitter: .*\nbranch nick: source')
385
 
 
386
 
    def test_pull_smart_stacked_streaming_acceptance(self):
387
 
        """'bzr pull -r 123' works on stacked, smart branches, even when the
388
 
        revision specified by the revno is only present in the fallback
389
 
        repository.
390
 
 
391
 
        See <https://launchpad.net/bugs/380314>
392
 
        """
393
 
        self.setup_smart_server_with_call_log()
394
 
        # Make a stacked-on branch with two commits so that the
395
 
        # revision-history can't be determined just by looking at the parent
396
 
        # field in the revision in the stacked repo.
397
 
        parent = self.make_branch_and_tree('parent', format='1.9')
398
 
        parent.commit(message='first commit')
399
 
        parent.commit(message='second commit')
400
 
        local = parent.bzrdir.sprout('local').open_workingtree()
401
 
        local.commit(message='local commit')
402
 
        local.branch.create_clone_on_transport(
403
 
            self.get_transport('stacked'), stacked_on=self.get_url('parent'))
404
 
        empty = self.make_branch_and_tree('empty', format='1.9')
405
 
        self.reset_smart_call_log()
406
 
        self.run_bzr(['pull', '-r', '1', self.get_url('stacked')],
407
 
            working_dir='empty')
408
 
        # This figure represent the amount of work to perform this use case. It
409
 
        # is entirely ok to reduce this number if a test fails due to rpc_count
410
 
        # being too low. If rpc_count increases, more network roundtrips have
411
 
        # become necessary for this use case. Please do not adjust this number
412
 
        # upwards without agreement from bzr's network support maintainers.
413
 
        self.assertLength(18, self.hpss_calls)
414
 
        remote = Branch.open('stacked')
415
 
        self.assertEndsWith(remote.get_stacked_on_url(), '/parent')
416
 
    
417
 
    def test_pull_cross_format_warning(self):
418
 
        """You get a warning for probably slow cross-format pulls.
419
 
        """
420
 
        # this is assumed to be going through InterDifferingSerializer
421
 
        from_tree = self.make_branch_and_tree('from', format='2a')
422
 
        to_tree = self.make_branch_and_tree('to', format='1.14-rich-root')
423
 
        from_tree.commit(message='first commit')
424
 
        out, err = self.run_bzr(['pull', '-d', 'to', 'from'])
425
 
        self.assertContainsRe(err,
426
 
            "(?m)Doing on-the-fly conversion")
427
 
 
428
 
    def test_pull_cross_format_warning_no_IDS(self):
429
 
        """You get a warning for probably slow cross-format pulls.
430
 
        """
431
 
        # this simulates what would happen across the network, where
432
 
        # interdifferingserializer is not active
433
 
 
434
 
        debug.debug_flags.add('IDS_never')
435
 
        # TestCase take care of restoring them
436
 
 
437
 
        from_tree = self.make_branch_and_tree('from', format='2a')
438
 
        to_tree = self.make_branch_and_tree('to', format='1.14-rich-root')
439
 
        from_tree.commit(message='first commit')
440
 
        out, err = self.run_bzr(['pull', '-d', 'to', 'from'])
441
 
        self.assertContainsRe(err,
442
 
            "(?m)Doing on-the-fly conversion")
443
 
 
444
 
    def test_pull_cross_format_from_network(self):
445
 
        self.setup_smart_server_with_call_log()
446
 
        from_tree = self.make_branch_and_tree('from', format='2a')
447
 
        to_tree = self.make_branch_and_tree('to', format='1.14-rich-root')
448
 
        self.assertIsInstance(from_tree.branch, remote.RemoteBranch)
449
 
        from_tree.commit(message='first commit')
450
 
        out, err = self.run_bzr(['pull', '-d', 'to',
451
 
            from_tree.branch.bzrdir.root_transport.base])
452
 
        self.assertContainsRe(err,
453
 
            "(?m)Doing on-the-fly conversion")
454
 
 
455
 
    def test_pull_to_experimental_format_warning(self):
456
 
        """You get a warning for pulling into experimental formats.
457
 
        """
458
 
        from_tree = self.make_branch_and_tree('from', format='development-subtree')
459
 
        to_tree = self.make_branch_and_tree('to', format='development-subtree')
460
 
        from_tree.commit(message='first commit')
461
 
        out, err = self.run_bzr(['pull', '-d', 'to', 'from'])
462
 
        self.assertContainsRe(err,
463
 
            "(?m)Fetching into experimental format")
464
 
 
465
 
    def test_pull_cross_to_experimental_format_warning(self):
466
 
        """You get a warning for pulling into experimental formats.
467
 
        """
468
 
        from_tree = self.make_branch_and_tree('from', format='2a')
469
 
        to_tree = self.make_branch_and_tree('to', format='development-subtree')
470
 
        from_tree.commit(message='first commit')
471
 
        out, err = self.run_bzr(['pull', '-d', 'to', 'from'])
472
 
        self.assertContainsRe(err,
473
 
            "(?m)Fetching into experimental format")
474
 
 
475
 
    def test_pull_show_base(self):
476
 
        """bzr pull supports --show-base
477
 
 
478
 
        see https://bugs.launchpad.net/bzr/+bug/202374"""
479
 
        # create two trees with conflicts, setup conflict, check that
480
 
        # conflicted file looks correct
481
 
        a_tree = self.example_branch('a')
482
 
        b_tree = a_tree.bzrdir.sprout('b').open_workingtree()
483
 
 
484
 
        f = open(pathjoin('a', 'hello'),'wt')
485
 
        f.write('fee')
486
 
        f.close()
487
 
        a_tree.commit('fee')
488
 
 
489
 
        f = open(pathjoin('b', 'hello'),'wt')
490
 
        f.write('fie')
491
 
        f.close()
492
 
 
493
 
        out,err=self.run_bzr(['pull','-d','b','a','--show-base'])
494
 
 
495
 
        # check for message here
496
 
        self.assertEqual(err,
497
 
                         ' M  hello\nText conflict in hello\n1 conflicts encountered.\n')
498
 
 
499
 
        self.assertEqualDiff('<<<<<<< TREE\n'
500
 
                             'fie||||||| BASE-REVISION\n'
501
 
                             'foo=======\n'
502
 
                             'fee>>>>>>> MERGE-SOURCE\n',
503
 
                             open(pathjoin('b', 'hello')).read())
504
 
 
505
 
    def test_pull_show_base_working_tree_only(self):
506
 
        """--show-base only allowed if there's a working tree
507
 
 
508
 
        see https://bugs.launchpad.net/bzr/+bug/202374"""
509
 
        # create a branch, see that --show-base fails
510
 
        self.make_branch('from')
511
 
        self.make_branch('to')
512
 
        out=self.run_bzr(['pull','-d','to','from','--show-base'],retcode=3)
513
 
        self.assertEqual(out,
514
 
                         ('','bzr: ERROR: Need working tree for --show-base.\n'))
515
 
 
516
 
    def test_pull_tag_conflicts(self):
517
 
        """pulling tags with conflicts will change the exit code"""
518
 
        # create a branch, see that --show-base fails
519
 
        from_tree = self.make_branch_and_tree('from')
520
 
        from_tree.branch.tags.set_tag("mytag", "somerevid")
521
 
        to_tree = self.make_branch_and_tree('to')
522
 
        to_tree.branch.tags.set_tag("mytag", "anotherrevid")
523
 
        out = self.run_bzr(['pull','-d','to','from'],retcode=1)
524
 
        self.assertEqual(out,
525
 
            ('No revisions to pull.\nConflicting tags:\n    mytag\n', ''))