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Viewing changes to bzrlib/tests/test_shelf_ui.py

(vila) Fix test failures blocking package builds. (Vincent Ladeuil)

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bzrlib/tests/test_shelf_ui.py
 
1
# Copyright (C) 2008, 2009, 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
from cStringIO import StringIO
 
19
import os
 
20
import sys
 
21
from textwrap import dedent
 
22
 
 
23
from bzrlib import (
 
24
    errors,
 
25
    shelf_ui,
 
26
    revision,
 
27
    tests,
 
28
)
 
29
from bzrlib.tests import script
 
30
from bzrlib.tests import (
 
31
    features,
 
32
    )
 
33
 
 
34
 
 
35
class ExpectShelver(shelf_ui.Shelver):
 
36
    """A variant of Shelver that intercepts console activity, for testing."""
 
37
 
 
38
    def __init__(self, work_tree, target_tree, diff_writer=None,
 
39
                 auto=False, auto_apply=False, file_list=None, message=None,
 
40
                 destroy=False, reporter=None):
 
41
        shelf_ui.Shelver.__init__(self, work_tree, target_tree, diff_writer,
 
42
                                  auto, auto_apply, file_list, message,
 
43
                                  destroy, reporter=reporter)
 
44
        self.expected = []
 
45
        self.diff_writer = StringIO()
 
46
 
 
47
    def expect(self, message, response):
 
48
        self.expected.append((message, response))
 
49
 
 
50
    def prompt(self, message, choices, default):
 
51
        try:
 
52
            expected_message, response = self.expected.pop(0)
 
53
        except IndexError:
 
54
            raise AssertionError('Unexpected prompt: %s' % message)
 
55
        if message != expected_message:
 
56
            raise AssertionError('Wrong prompt: %s' % message)
 
57
        if choices != '&yes\n&No\n&finish\n&quit':
 
58
            raise AssertionError('Wrong choices: %s' % choices)
 
59
        return response
 
60
 
 
61
 
 
62
LINES_AJ = 'a\nb\nc\nd\ne\nf\ng\nh\ni\nj\n'
 
63
 
 
64
 
 
65
LINES_ZY = 'z\nb\nc\nd\ne\nf\ng\nh\ni\ny\n'
 
66
 
 
67
 
 
68
LINES_AY = 'a\nb\nc\nd\ne\nf\ng\nh\ni\ny\n'
 
69
 
 
70
 
 
71
class ShelfTestCase(tests.TestCaseWithTransport):
 
72
 
 
73
    def create_shelvable_tree(self):
 
74
        tree = self.make_branch_and_tree('tree')
 
75
        self.build_tree_contents([('tree/foo', LINES_AJ)])
 
76
        tree.add('foo', 'foo-id')
 
77
        tree.commit('added foo')
 
78
        self.build_tree_contents([('tree/foo', LINES_ZY)])
 
79
        return tree
 
80
 
 
81
 
 
82
class TestShelver(ShelfTestCase):
 
83
 
 
84
    def test_unexpected_prompt_failure(self):
 
85
        tree = self.create_shelvable_tree()
 
86
        tree.lock_tree_write()
 
87
        self.addCleanup(tree.unlock)
 
88
        shelver = ExpectShelver(tree, tree.basis_tree())
 
89
        self.addCleanup(shelver.finalize)
 
90
        e = self.assertRaises(AssertionError, shelver.run)
 
91
        self.assertEqual('Unexpected prompt: Shelve?', str(e))
 
92
 
 
93
    def test_wrong_prompt_failure(self):
 
94
        tree = self.create_shelvable_tree()
 
95
        tree.lock_tree_write()
 
96
        self.addCleanup(tree.unlock)
 
97
        shelver = ExpectShelver(tree, tree.basis_tree())
 
98
        self.addCleanup(shelver.finalize)
 
99
        shelver.expect('foo', 0)
 
100
        e = self.assertRaises(AssertionError, shelver.run)
 
101
        self.assertEqual('Wrong prompt: Shelve?', str(e))
 
102
 
 
103
    def test_shelve_not_diff(self):
 
104
        tree = self.create_shelvable_tree()
 
105
        tree.lock_tree_write()
 
106
        self.addCleanup(tree.unlock)
 
107
        shelver = ExpectShelver(tree, tree.basis_tree())
 
108
        self.addCleanup(shelver.finalize)
 
109
        shelver.expect('Shelve?', 1)
 
110
        shelver.expect('Shelve?', 1)
 
111
        # No final shelving prompt because no changes were selected
 
112
        shelver.run()
 
113
        self.assertFileEqual(LINES_ZY, 'tree/foo')
 
114
 
 
115
    def test_shelve_diff_no(self):
 
116
        tree = self.create_shelvable_tree()
 
117
        tree.lock_tree_write()
 
118
        self.addCleanup(tree.unlock)
 
119
        shelver = ExpectShelver(tree, tree.basis_tree())
 
120
        self.addCleanup(shelver.finalize)
 
121
        shelver.expect('Shelve?', 0)
 
122
        shelver.expect('Shelve?', 0)
 
123
        shelver.expect('Shelve 2 change(s)?', 1)
 
124
        shelver.run()
 
125
        self.assertFileEqual(LINES_ZY, 'tree/foo')
 
126
 
 
127
    def test_shelve_diff(self):
 
128
        tree = self.create_shelvable_tree()
 
129
        tree.lock_tree_write()
 
130
        self.addCleanup(tree.unlock)
 
131
        shelver = ExpectShelver(tree, tree.basis_tree())
 
132
        self.addCleanup(shelver.finalize)
 
133
        shelver.expect('Shelve?', 0)
 
134
        shelver.expect('Shelve?', 0)
 
135
        shelver.expect('Shelve 2 change(s)?', 0)
 
136
        shelver.run()
 
137
        self.assertFileEqual(LINES_AJ, 'tree/foo')
 
138
 
 
139
    def test_shelve_one_diff(self):
 
140
        tree = self.create_shelvable_tree()
 
141
        tree.lock_tree_write()
 
142
        self.addCleanup(tree.unlock)
 
143
        shelver = ExpectShelver(tree, tree.basis_tree())
 
144
        self.addCleanup(shelver.finalize)
 
145
        shelver.expect('Shelve?', 0)
 
146
        shelver.expect('Shelve?', 1)
 
147
        shelver.expect('Shelve 1 change(s)?', 0)
 
148
        shelver.run()
 
149
        self.assertFileEqual(LINES_AY, 'tree/foo')
 
150
 
 
151
    def test_shelve_binary_change(self):
 
152
        tree = self.create_shelvable_tree()
 
153
        self.build_tree_contents([('tree/foo', '\x00')])
 
154
        tree.lock_tree_write()
 
155
        self.addCleanup(tree.unlock)
 
156
        shelver = ExpectShelver(tree, tree.basis_tree())
 
157
        self.addCleanup(shelver.finalize)
 
158
        shelver.expect('Shelve binary changes?', 0)
 
159
        shelver.expect('Shelve 1 change(s)?', 0)
 
160
        shelver.run()
 
161
        self.assertFileEqual(LINES_AJ, 'tree/foo')
 
162
 
 
163
    def test_shelve_rename(self):
 
164
        tree = self.create_shelvable_tree()
 
165
        tree.rename_one('foo', 'bar')
 
166
        tree.lock_tree_write()
 
167
        self.addCleanup(tree.unlock)
 
168
        shelver = ExpectShelver(tree, tree.basis_tree())
 
169
        self.addCleanup(shelver.finalize)
 
170
        shelver.expect('Shelve renaming "foo" => "bar"?', 0)
 
171
        shelver.expect('Shelve?', 0)
 
172
        shelver.expect('Shelve?', 0)
 
173
        shelver.expect('Shelve 3 change(s)?', 0)
 
174
        shelver.run()
 
175
        self.assertFileEqual(LINES_AJ, 'tree/foo')
 
176
 
 
177
    def test_shelve_deletion(self):
 
178
        tree = self.create_shelvable_tree()
 
179
        os.unlink('tree/foo')
 
180
        tree.lock_tree_write()
 
181
        self.addCleanup(tree.unlock)
 
182
        shelver = ExpectShelver(tree, tree.basis_tree())
 
183
        self.addCleanup(shelver.finalize)
 
184
        shelver.expect('Shelve removing file "foo"?', 0)
 
185
        shelver.expect('Shelve 1 change(s)?', 0)
 
186
        shelver.run()
 
187
        self.assertFileEqual(LINES_AJ, 'tree/foo')
 
188
 
 
189
    def test_shelve_creation(self):
 
190
        tree = self.make_branch_and_tree('tree')
 
191
        tree.commit('add tree root')
 
192
        self.build_tree(['tree/foo'])
 
193
        tree.add('foo')
 
194
        tree.lock_tree_write()
 
195
        self.addCleanup(tree.unlock)
 
196
        shelver = ExpectShelver(tree, tree.basis_tree())
 
197
        self.addCleanup(shelver.finalize)
 
198
        shelver.expect('Shelve adding file "foo"?', 0)
 
199
        shelver.expect('Shelve 1 change(s)?', 0)
 
200
        shelver.run()
 
201
        self.assertPathDoesNotExist('tree/foo')
 
202
 
 
203
    def test_shelve_kind_change(self):
 
204
        tree = self.create_shelvable_tree()
 
205
        os.unlink('tree/foo')
 
206
        os.mkdir('tree/foo')
 
207
        tree.lock_tree_write()
 
208
        self.addCleanup(tree.unlock)
 
209
        shelver = ExpectShelver(tree, tree.basis_tree())
 
210
        self.addCleanup(shelver.finalize)
 
211
        shelver.expect('Shelve changing "foo" from file to directory?',
 
212
                       0)
 
213
        shelver.expect('Shelve 1 change(s)?', 0)
 
214
 
 
215
    def test_shelve_modify_target(self):
 
216
        self.requireFeature(features.SymlinkFeature)
 
217
        tree = self.create_shelvable_tree()
 
218
        os.symlink('bar', 'tree/baz')
 
219
        tree.add('baz', 'baz-id')
 
220
        tree.commit("Add symlink")
 
221
        os.unlink('tree/baz')
 
222
        os.symlink('vax', 'tree/baz')
 
223
        tree.lock_tree_write()
 
224
        self.addCleanup(tree.unlock)
 
225
        shelver = ExpectShelver(tree, tree.basis_tree())
 
226
        self.addCleanup(shelver.finalize)
 
227
        shelver.expect('Shelve changing target of "baz" from "bar" to '
 
228
                '"vax"?', 0)
 
229
        shelver.expect('Shelve 1 change(s)?', 0)
 
230
        shelver.run()
 
231
        self.assertEqual('bar', os.readlink('tree/baz'))
 
232
 
 
233
    def test_shelve_finish(self):
 
234
        tree = self.create_shelvable_tree()
 
235
        tree.lock_tree_write()
 
236
        self.addCleanup(tree.unlock)
 
237
        shelver = ExpectShelver(tree, tree.basis_tree())
 
238
        self.addCleanup(shelver.finalize)
 
239
        shelver.expect('Shelve?', 2)
 
240
        shelver.expect('Shelve 2 change(s)?', 0)
 
241
        shelver.run()
 
242
        self.assertFileEqual(LINES_AJ, 'tree/foo')
 
243
 
 
244
    def test_shelve_quit(self):
 
245
        tree = self.create_shelvable_tree()
 
246
        tree.lock_tree_write()
 
247
        self.addCleanup(tree.unlock)
 
248
        shelver = ExpectShelver(tree, tree.basis_tree())
 
249
        self.addCleanup(shelver.finalize)
 
250
        shelver.expect('Shelve?', 3)
 
251
        self.assertRaises(errors.UserAbort, shelver.run)
 
252
        self.assertFileEqual(LINES_ZY, 'tree/foo')
 
253
 
 
254
    def test_shelve_all(self):
 
255
        tree = self.create_shelvable_tree()
 
256
        shelver = ExpectShelver.from_args(sys.stdout, all=True,
 
257
            directory='tree')
 
258
        try:
 
259
            shelver.run()
 
260
        finally:
 
261
            shelver.finalize()
 
262
        self.assertFileEqual(LINES_AJ, 'tree/foo')
 
263
 
 
264
    def test_shelve_filename(self):
 
265
        tree = self.create_shelvable_tree()
 
266
        self.build_tree(['tree/bar'])
 
267
        tree.add('bar')
 
268
        tree.lock_tree_write()
 
269
        self.addCleanup(tree.unlock)
 
270
        shelver = ExpectShelver(tree, tree.basis_tree(), file_list=['bar'])
 
271
        self.addCleanup(shelver.finalize)
 
272
        shelver.expect('Shelve adding file "bar"?', 0)
 
273
        shelver.expect('Shelve 1 change(s)?', 0)
 
274
        shelver.run()
 
275
 
 
276
    def test_shelve_destroy(self):
 
277
        tree = self.create_shelvable_tree()
 
278
        shelver = shelf_ui.Shelver.from_args(sys.stdout, all=True,
 
279
                                             directory='tree', destroy=True)
 
280
        self.addCleanup(shelver.finalize)
 
281
        shelver.run()
 
282
        self.assertIs(None, tree.get_shelf_manager().last_shelf())
 
283
        self.assertFileEqual(LINES_AJ, 'tree/foo')
 
284
 
 
285
    @staticmethod
 
286
    def shelve_all(tree, target_revision_id):
 
287
        tree.lock_write()
 
288
        try:
 
289
            target = tree.branch.repository.revision_tree(target_revision_id)
 
290
            shelver = shelf_ui.Shelver(tree, target, auto=True,
 
291
                                       auto_apply=True)
 
292
            try:
 
293
                shelver.run()
 
294
            finally:
 
295
                shelver.finalize()
 
296
        finally:
 
297
            tree.unlock()
 
298
 
 
299
    def test_shelve_old_root_preserved(self):
 
300
        tree1 = self.make_branch_and_tree('tree1')
 
301
        tree1.commit('add root')
 
302
        tree1_root_id = tree1.get_root_id()
 
303
        tree2 = self.make_branch_and_tree('tree2')
 
304
        rev2 = tree2.commit('add root')
 
305
        self.assertNotEquals(tree1_root_id, tree2.get_root_id())
 
306
        tree1.merge_from_branch(tree2.branch,
 
307
                                from_revision=revision.NULL_REVISION)
 
308
        tree1.commit('merging in tree2')
 
309
        self.assertEquals(tree1_root_id, tree1.get_root_id())
 
310
        # This is essentially assertNotRaises(InconsistentDelta)
 
311
        # With testtools 0.9.9, it can be rewritten as:
 
312
        # with ExpectedException(AssertionError,
 
313
        #                        'InconsistentDelta not raised'):
 
314
        #     with ExpectedException(errors.InconsistentDelta, ''):
 
315
        #         self.shelve_all(tree1, rev2)
 
316
        e = self.assertRaises(AssertionError, self.assertRaises,
 
317
                              errors.InconsistentDelta, self.shelve_all, tree1,
 
318
                              rev2)
 
319
        self.assertContainsRe('InconsistentDelta not raised', str(e))
 
320
 
 
321
    def test_shelve_split(self):
 
322
        outer_tree = self.make_branch_and_tree('outer')
 
323
        outer_tree.commit('Add root')
 
324
        inner_tree = self.make_branch_and_tree('outer/inner')
 
325
        rev2 = inner_tree.commit('Add root')
 
326
        outer_tree.subsume(inner_tree)
 
327
        # This is essentially assertNotRaises(ValueError).
 
328
        # The ValueError is 'None is not a valid file id'.
 
329
        self.expectFailure('Cannot shelve a join back to the inner tree.',
 
330
                           self.assertRaises, AssertionError,
 
331
                           self.assertRaises, ValueError, self.shelve_all,
 
332
                           outer_tree, rev2)
 
333
 
 
334
 
 
335
class TestApplyReporter(ShelfTestCase):
 
336
 
 
337
    def test_shelve_not_diff(self):
 
338
        tree = self.create_shelvable_tree()
 
339
        tree.lock_tree_write()
 
340
        self.addCleanup(tree.unlock)
 
341
        shelver = ExpectShelver(tree, tree.basis_tree(),
 
342
                                reporter=shelf_ui.ApplyReporter())
 
343
        self.addCleanup(shelver.finalize)
 
344
        shelver.expect('Apply change?', 1)
 
345
        shelver.expect('Apply change?', 1)
 
346
        # No final shelving prompt because no changes were selected
 
347
        shelver.run()
 
348
        self.assertFileEqual(LINES_ZY, 'tree/foo')
 
349
 
 
350
    def test_shelve_diff_no(self):
 
351
        tree = self.create_shelvable_tree()
 
352
        tree.lock_tree_write()
 
353
        self.addCleanup(tree.unlock)
 
354
        shelver = ExpectShelver(tree, tree.basis_tree(),
 
355
                                reporter=shelf_ui.ApplyReporter())
 
356
        self.addCleanup(shelver.finalize)
 
357
        shelver.expect('Apply change?', 0)
 
358
        shelver.expect('Apply change?', 0)
 
359
        shelver.expect('Apply 2 change(s)?', 1)
 
360
        shelver.run()
 
361
        self.assertFileEqual(LINES_ZY, 'tree/foo')
 
362
 
 
363
    def test_shelve_diff(self):
 
364
        tree = self.create_shelvable_tree()
 
365
        tree.lock_tree_write()
 
366
        self.addCleanup(tree.unlock)
 
367
        shelver = ExpectShelver(tree, tree.basis_tree(),
 
368
                                reporter=shelf_ui.ApplyReporter())
 
369
        self.addCleanup(shelver.finalize)
 
370
        shelver.expect('Apply change?', 0)
 
371
        shelver.expect('Apply change?', 0)
 
372
        shelver.expect('Apply 2 change(s)?', 0)
 
373
        shelver.run()
 
374
        self.assertFileEqual(LINES_AJ, 'tree/foo')
 
375
 
 
376
    def test_shelve_binary_change(self):
 
377
        tree = self.create_shelvable_tree()
 
378
        self.build_tree_contents([('tree/foo', '\x00')])
 
379
        tree.lock_tree_write()
 
380
        self.addCleanup(tree.unlock)
 
381
        shelver = ExpectShelver(tree, tree.basis_tree(),
 
382
                                reporter=shelf_ui.ApplyReporter())
 
383
        self.addCleanup(shelver.finalize)
 
384
        shelver.expect('Apply binary changes?', 0)
 
385
        shelver.expect('Apply 1 change(s)?', 0)
 
386
        shelver.run()
 
387
        self.assertFileEqual(LINES_AJ, 'tree/foo')
 
388
 
 
389
    def test_shelve_rename(self):
 
390
        tree = self.create_shelvable_tree()
 
391
        tree.rename_one('foo', 'bar')
 
392
        tree.lock_tree_write()
 
393
        self.addCleanup(tree.unlock)
 
394
        shelver = ExpectShelver(tree, tree.basis_tree(),
 
395
                                reporter=shelf_ui.ApplyReporter())
 
396
        self.addCleanup(shelver.finalize)
 
397
        shelver.expect('Rename "bar" => "foo"?', 0)
 
398
        shelver.expect('Apply change?', 0)
 
399
        shelver.expect('Apply change?', 0)
 
400
        shelver.expect('Apply 3 change(s)?', 0)
 
401
        shelver.run()
 
402
        self.assertFileEqual(LINES_AJ, 'tree/foo')
 
403
 
 
404
    def test_shelve_deletion(self):
 
405
        tree = self.create_shelvable_tree()
 
406
        os.unlink('tree/foo')
 
407
        tree.lock_tree_write()
 
408
        self.addCleanup(tree.unlock)
 
409
        shelver = ExpectShelver(tree, tree.basis_tree(),
 
410
                                reporter=shelf_ui.ApplyReporter())
 
411
        self.addCleanup(shelver.finalize)
 
412
        shelver.expect('Add file "foo"?', 0)
 
413
        shelver.expect('Apply 1 change(s)?', 0)
 
414
        shelver.run()
 
415
        self.assertFileEqual(LINES_AJ, 'tree/foo')
 
416
 
 
417
    def test_shelve_creation(self):
 
418
        tree = self.make_branch_and_tree('tree')
 
419
        tree.commit('add tree root')
 
420
        self.build_tree(['tree/foo'])
 
421
        tree.add('foo')
 
422
        tree.lock_tree_write()
 
423
        self.addCleanup(tree.unlock)
 
424
        shelver = ExpectShelver(tree, tree.basis_tree(),
 
425
                                reporter=shelf_ui.ApplyReporter())
 
426
        self.addCleanup(shelver.finalize)
 
427
        shelver.expect('Delete file "foo"?', 0)
 
428
        shelver.expect('Apply 1 change(s)?', 0)
 
429
        shelver.run()
 
430
        self.assertPathDoesNotExist('tree/foo')
 
431
 
 
432
    def test_shelve_kind_change(self):
 
433
        tree = self.create_shelvable_tree()
 
434
        os.unlink('tree/foo')
 
435
        os.mkdir('tree/foo')
 
436
        tree.lock_tree_write()
 
437
        self.addCleanup(tree.unlock)
 
438
        shelver = ExpectShelver(tree, tree.basis_tree(),
 
439
                               reporter=shelf_ui.ApplyReporter())
 
440
        self.addCleanup(shelver.finalize)
 
441
        shelver.expect('Change "foo" from directory to a file?', 0)
 
442
        shelver.expect('Apply 1 change(s)?', 0)
 
443
 
 
444
    def test_shelve_modify_target(self):
 
445
        self.requireFeature(features.SymlinkFeature)
 
446
        tree = self.create_shelvable_tree()
 
447
        os.symlink('bar', 'tree/baz')
 
448
        tree.add('baz', 'baz-id')
 
449
        tree.commit("Add symlink")
 
450
        os.unlink('tree/baz')
 
451
        os.symlink('vax', 'tree/baz')
 
452
        tree.lock_tree_write()
 
453
        self.addCleanup(tree.unlock)
 
454
        shelver = ExpectShelver(tree, tree.basis_tree(),
 
455
                                reporter=shelf_ui.ApplyReporter())
 
456
        self.addCleanup(shelver.finalize)
 
457
        shelver.expect('Change target of "baz" from "vax" to "bar"?',
 
458
                       0)
 
459
        shelver.expect('Apply 1 change(s)?', 0)
 
460
        shelver.run()
 
461
        self.assertEqual('bar', os.readlink('tree/baz'))
 
462
 
 
463
 
 
464
class TestUnshelver(tests.TestCaseWithTransport):
 
465
 
 
466
    def create_tree_with_shelf(self):
 
467
        tree = self.make_branch_and_tree('tree')
 
468
        tree.lock_write()
 
469
        try:
 
470
            self.build_tree_contents([('tree/foo', LINES_AJ)])
 
471
            tree.add('foo', 'foo-id')
 
472
            tree.commit('added foo')
 
473
            self.build_tree_contents([('tree/foo', LINES_ZY)])
 
474
            shelver = shelf_ui.Shelver(tree, tree.basis_tree(),
 
475
                                       auto_apply=True, auto=True)
 
476
            try:
 
477
                shelver.run()
 
478
            finally:
 
479
                shelver.finalize()
 
480
        finally:
 
481
            tree.unlock()
 
482
        return tree
 
483
 
 
484
    def test_unshelve(self):
 
485
        tree = self.create_tree_with_shelf()
 
486
        tree.lock_write()
 
487
        self.addCleanup(tree.unlock)
 
488
        manager = tree.get_shelf_manager()
 
489
        shelf_ui.Unshelver(tree, manager, 1, True, True, True).run()
 
490
        self.assertFileEqual(LINES_ZY, 'tree/foo')
 
491
 
 
492
    def test_unshelve_args(self):
 
493
        tree = self.create_tree_with_shelf()
 
494
        unshelver = shelf_ui.Unshelver.from_args(directory='tree')
 
495
        try:
 
496
            unshelver.run()
 
497
        finally:
 
498
            unshelver.tree.unlock()
 
499
        self.assertFileEqual(LINES_ZY, 'tree/foo')
 
500
        self.assertIs(None, tree.get_shelf_manager().last_shelf())
 
501
 
 
502
    def test_unshelve_args_dry_run(self):
 
503
        tree = self.create_tree_with_shelf()
 
504
        unshelver = shelf_ui.Unshelver.from_args(directory='tree',
 
505
            action='dry-run')
 
506
        try:
 
507
            unshelver.run()
 
508
        finally:
 
509
            unshelver.tree.unlock()
 
510
        self.assertFileEqual(LINES_AJ, 'tree/foo')
 
511
        self.assertEqual(1, tree.get_shelf_manager().last_shelf())
 
512
 
 
513
    def test_unshelve_args_preview(self):
 
514
        tree = self.create_tree_with_shelf()
 
515
        write_diff_to = StringIO()
 
516
        unshelver = shelf_ui.Unshelver.from_args(
 
517
            directory='tree', action='preview', write_diff_to=write_diff_to)
 
518
        try:
 
519
            unshelver.run()
 
520
        finally:
 
521
            unshelver.tree.unlock()
 
522
        # The changes were not unshelved.
 
523
        self.assertFileEqual(LINES_AJ, 'tree/foo')
 
524
        self.assertEqual(1, tree.get_shelf_manager().last_shelf())
 
525
 
 
526
        # But the diff was written to write_diff_to.
 
527
        diff = write_diff_to.getvalue()
 
528
        expected = dedent("""\
 
529
            @@ -1,4 +1,4 @@
 
530
            -a
 
531
            +z
 
532
             b
 
533
             c
 
534
             d
 
535
            @@ -7,4 +7,4 @@
 
536
             g
 
537
             h
 
538
             i
 
539
            -j
 
540
            +y
 
541
 
 
542
            """)
 
543
        self.assertEqualDiff(expected, diff[-len(expected):])
 
544
 
 
545
    def test_unshelve_args_delete_only(self):
 
546
        tree = self.make_branch_and_tree('tree')
 
547
        manager = tree.get_shelf_manager()
 
548
        shelf_file = manager.new_shelf()[1]
 
549
        try:
 
550
            shelf_file.write('garbage')
 
551
        finally:
 
552
            shelf_file.close()
 
553
        unshelver = shelf_ui.Unshelver.from_args(directory='tree',
 
554
                                                 action='delete-only')
 
555
        try:
 
556
            unshelver.run()
 
557
        finally:
 
558
            unshelver.tree.unlock()
 
559
        self.assertIs(None, manager.last_shelf())
 
560
 
 
561
    def test_unshelve_args_invalid_shelf_id(self):
 
562
        tree = self.make_branch_and_tree('tree')
 
563
        manager = tree.get_shelf_manager()
 
564
        shelf_file = manager.new_shelf()[1]
 
565
        try:
 
566
            shelf_file.write('garbage')
 
567
        finally:
 
568
            shelf_file.close()
 
569
        self.assertRaises(errors.InvalidShelfId,
 
570
            shelf_ui.Unshelver.from_args, directory='tree',
 
571
            action='delete-only', shelf_id='foo')
 
572
 
 
573
 
 
574
class TestUnshelveScripts(TestUnshelver, 
 
575
                          script.TestCaseWithTransportAndScript): 
 
576
 
 
577
    def test_unshelve_messages_keep(self):
 
578
        self.create_tree_with_shelf()
 
579
        self.run_script("""
 
580
$ cd tree
 
581
$ bzr unshelve --keep
 
582
2>Using changes with id "1".
 
583
2> M  foo
 
584
2>All changes applied successfully.
 
585
""")
 
586
 
 
587
    def test_unshelve_messages_delete(self):
 
588
        self.create_tree_with_shelf()
 
589
        self.run_script("""
 
590
$ cd tree
 
591
$ bzr unshelve --delete-only
 
592
2>Deleted changes with id "1".
 
593
""")
 
594
 
 
595
    def test_unshelve_messages_apply(self):
 
596
        self.create_tree_with_shelf()
 
597
        self.run_script("""
 
598
$ cd tree
 
599
$ bzr unshelve --apply
 
600
2>Using changes with id "1".
 
601
2> M  foo
 
602
2>All changes applied successfully.
 
603
2>Deleted changes with id "1".
 
604
""")
 
605
 
 
606
    def test_unshelve_messages_dry_run(self):
 
607
        self.create_tree_with_shelf()
 
608
        self.run_script("""
 
609
$ cd tree
 
610
$ bzr unshelve --dry-run
 
611
2>Using changes with id "1".
 
612
2> M  foo
 
613
""")