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  • Committer: mbp at sourcefrog
  • Date: 2005-03-28 02:24:18 UTC
  • Revision ID: mbp@sourcefrog.net-20050328022418-9d37f56361aa18e9
doc: more on ignore patterns

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1
 
# Copyright (C) 2005 by 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
16
 
 
17
 
from cStringIO import StringIO
18
 
import os
19
 
 
20
 
from bzrlib.branch import Branch
21
 
import bzrlib.errors as errors
22
 
from bzrlib.diff import internal_diff
23
 
from bzrlib.inventory import Inventory, ROOT_ID
24
 
import bzrlib.inventory as inventory
25
 
from bzrlib.osutils import has_symlinks, rename, pathjoin
26
 
from bzrlib.tests import TestCase, TestCaseWithTransport
27
 
from bzrlib.transform import TreeTransform
28
 
from bzrlib.uncommit import uncommit
29
 
 
30
 
 
31
 
class TestInventory(TestCase):
32
 
 
33
 
    def test_is_within(self):
34
 
        from bzrlib.osutils import is_inside_any
35
 
 
36
 
        SRC_FOO_C = pathjoin('src', 'foo.c')
37
 
        for dirs, fn in [(['src', 'doc'], SRC_FOO_C),
38
 
                         (['src'], SRC_FOO_C),
39
 
                         (['src'], 'src'),
40
 
                         ]:
41
 
            self.assert_(is_inside_any(dirs, fn))
42
 
            
43
 
        for dirs, fn in [(['src'], 'srccontrol'),
44
 
                         (['src'], 'srccontrol/foo')]:
45
 
            self.assertFalse(is_inside_any(dirs, fn))
46
 
            
47
 
    def test_ids(self):
48
 
        """Test detection of files within selected directories."""
49
 
        inv = Inventory()
50
 
        
51
 
        for args in [('src', 'directory', 'src-id'), 
52
 
                     ('doc', 'directory', 'doc-id'), 
53
 
                     ('src/hello.c', 'file'),
54
 
                     ('src/bye.c', 'file', 'bye-id'),
55
 
                     ('Makefile', 'file')]:
56
 
            inv.add_path(*args)
57
 
            
58
 
        self.assertEqual(inv.path2id('src'), 'src-id')
59
 
        self.assertEqual(inv.path2id('src/bye.c'), 'bye-id')
60
 
        
61
 
        self.assert_('src-id' in inv)
62
 
 
63
 
 
64
 
    def test_version(self):
65
 
        """Inventory remembers the text's version."""
66
 
        inv = Inventory()
67
 
        ie = inv.add_path('foo.txt', 'file')
68
 
        ## XXX
69
 
 
70
 
 
71
 
class TestInventoryEntry(TestCase):
72
 
 
73
 
    def test_file_kind_character(self):
74
 
        file = inventory.InventoryFile('123', 'hello.c', ROOT_ID)
75
 
        self.assertEqual(file.kind_character(), '')
76
 
 
77
 
    def test_dir_kind_character(self):
78
 
        dir = inventory.InventoryDirectory('123', 'hello.c', ROOT_ID)
79
 
        self.assertEqual(dir.kind_character(), '/')
80
 
 
81
 
    def test_link_kind_character(self):
82
 
        dir = inventory.InventoryLink('123', 'hello.c', ROOT_ID)
83
 
        self.assertEqual(dir.kind_character(), '')
84
 
 
85
 
    def test_dir_detect_changes(self):
86
 
        left = inventory.InventoryDirectory('123', 'hello.c', ROOT_ID)
87
 
        left.text_sha1 = 123
88
 
        left.executable = True
89
 
        left.symlink_target='foo'
90
 
        right = inventory.InventoryDirectory('123', 'hello.c', ROOT_ID)
91
 
        right.text_sha1 = 321
92
 
        right.symlink_target='bar'
93
 
        self.assertEqual((False, False), left.detect_changes(right))
94
 
        self.assertEqual((False, False), right.detect_changes(left))
95
 
 
96
 
    def test_file_detect_changes(self):
97
 
        left = inventory.InventoryFile('123', 'hello.c', ROOT_ID)
98
 
        left.text_sha1 = 123
99
 
        right = inventory.InventoryFile('123', 'hello.c', ROOT_ID)
100
 
        right.text_sha1 = 123
101
 
        self.assertEqual((False, False), left.detect_changes(right))
102
 
        self.assertEqual((False, False), right.detect_changes(left))
103
 
        left.executable = True
104
 
        self.assertEqual((False, True), left.detect_changes(right))
105
 
        self.assertEqual((False, True), right.detect_changes(left))
106
 
        right.text_sha1 = 321
107
 
        self.assertEqual((True, True), left.detect_changes(right))
108
 
        self.assertEqual((True, True), right.detect_changes(left))
109
 
 
110
 
    def test_symlink_detect_changes(self):
111
 
        left = inventory.InventoryLink('123', 'hello.c', ROOT_ID)
112
 
        left.text_sha1 = 123
113
 
        left.executable = True
114
 
        left.symlink_target='foo'
115
 
        right = inventory.InventoryLink('123', 'hello.c', ROOT_ID)
116
 
        right.text_sha1 = 321
117
 
        right.symlink_target='foo'
118
 
        self.assertEqual((False, False), left.detect_changes(right))
119
 
        self.assertEqual((False, False), right.detect_changes(left))
120
 
        left.symlink_target = 'different'
121
 
        self.assertEqual((True, False), left.detect_changes(right))
122
 
        self.assertEqual((True, False), right.detect_changes(left))
123
 
 
124
 
    def test_file_has_text(self):
125
 
        file = inventory.InventoryFile('123', 'hello.c', ROOT_ID)
126
 
        self.failUnless(file.has_text())
127
 
 
128
 
    def test_directory_has_text(self):
129
 
        dir = inventory.InventoryDirectory('123', 'hello.c', ROOT_ID)
130
 
        self.failIf(dir.has_text())
131
 
 
132
 
    def test_link_has_text(self):
133
 
        link = inventory.InventoryLink('123', 'hello.c', ROOT_ID)
134
 
        self.failIf(link.has_text())
135
 
 
136
 
 
137
 
class TestEntryDiffing(TestCaseWithTransport):
138
 
 
139
 
    def setUp(self):
140
 
        super(TestEntryDiffing, self).setUp()
141
 
        self.wt = self.make_branch_and_tree('.')
142
 
        self.branch = self.wt.branch
143
 
        print >> open('file', 'wb'), 'foo'
144
 
        print >> open('binfile', 'wb'), 'foo'
145
 
        self.wt.add(['file'], ['fileid'])
146
 
        self.wt.add(['binfile'], ['binfileid'])
147
 
        if has_symlinks():
148
 
            os.symlink('target1', 'symlink')
149
 
            self.wt.add(['symlink'], ['linkid'])
150
 
        self.wt.commit('message_1', rev_id = '1')
151
 
        print >> open('file', 'wb'), 'bar'
152
 
        print >> open('binfile', 'wb'), 'x' * 1023 + '\x00'
153
 
        if has_symlinks():
154
 
            os.unlink('symlink')
155
 
            os.symlink('target2', 'symlink')
156
 
        self.tree_1 = self.branch.repository.revision_tree('1')
157
 
        self.inv_1 = self.branch.repository.get_inventory('1')
158
 
        self.file_1 = self.inv_1['fileid']
159
 
        self.file_1b = self.inv_1['binfileid']
160
 
        self.tree_2 = self.wt
161
 
        self.inv_2 = self.tree_2.read_working_inventory()
162
 
        self.file_2 = self.inv_2['fileid']
163
 
        self.file_2b = self.inv_2['binfileid']
164
 
        if has_symlinks():
165
 
            self.link_1 = self.inv_1['linkid']
166
 
            self.link_2 = self.inv_2['linkid']
167
 
 
168
 
    def test_file_diff_deleted(self):
169
 
        output = StringIO()
170
 
        self.file_1.diff(internal_diff, 
171
 
                          "old_label", self.tree_1,
172
 
                          "/dev/null", None, None,
173
 
                          output)
174
 
        self.assertEqual(output.getvalue(), "--- old_label\t\n"
175
 
                                            "+++ /dev/null\t\n"
176
 
                                            "@@ -1,1 +0,0 @@\n"
177
 
                                            "-foo\n"
178
 
                                            "\n")
179
 
 
180
 
    def test_file_diff_added(self):
181
 
        output = StringIO()
182
 
        self.file_1.diff(internal_diff, 
183
 
                          "new_label", self.tree_1,
184
 
                          "/dev/null", None, None,
185
 
                          output, reverse=True)
186
 
        self.assertEqual(output.getvalue(), "--- /dev/null\t\n"
187
 
                                            "+++ new_label\t\n"
188
 
                                            "@@ -0,0 +1,1 @@\n"
189
 
                                            "+foo\n"
190
 
                                            "\n")
191
 
 
192
 
    def test_file_diff_changed(self):
193
 
        output = StringIO()
194
 
        self.file_1.diff(internal_diff, 
195
 
                          "/dev/null", self.tree_1, 
196
 
                          "new_label", self.file_2, self.tree_2,
197
 
                          output)
198
 
        self.assertEqual(output.getvalue(), "--- /dev/null\t\n"
199
 
                                            "+++ new_label\t\n"
200
 
                                            "@@ -1,1 +1,1 @@\n"
201
 
                                            "-foo\n"
202
 
                                            "+bar\n"
203
 
                                            "\n")
204
 
        
205
 
    def test_file_diff_binary(self):
206
 
        output = StringIO()
207
 
        self.file_1.diff(internal_diff, 
208
 
                          "/dev/null", self.tree_1, 
209
 
                          "new_label", self.file_2b, self.tree_2,
210
 
                          output)
211
 
        self.assertEqual(output.getvalue(), 
212
 
                         "Binary files /dev/null and new_label differ\n")
213
 
    def test_link_diff_deleted(self):
214
 
        if not has_symlinks():
215
 
            return
216
 
        output = StringIO()
217
 
        self.link_1.diff(internal_diff, 
218
 
                          "old_label", self.tree_1,
219
 
                          "/dev/null", None, None,
220
 
                          output)
221
 
        self.assertEqual(output.getvalue(),
222
 
                         "=== target was 'target1'\n")
223
 
 
224
 
    def test_link_diff_added(self):
225
 
        if not has_symlinks():
226
 
            return
227
 
        output = StringIO()
228
 
        self.link_1.diff(internal_diff, 
229
 
                          "new_label", self.tree_1,
230
 
                          "/dev/null", None, None,
231
 
                          output, reverse=True)
232
 
        self.assertEqual(output.getvalue(),
233
 
                         "=== target is 'target1'\n")
234
 
 
235
 
    def test_link_diff_changed(self):
236
 
        if not has_symlinks():
237
 
            return
238
 
        output = StringIO()
239
 
        self.link_1.diff(internal_diff, 
240
 
                          "/dev/null", self.tree_1, 
241
 
                          "new_label", self.link_2, self.tree_2,
242
 
                          output)
243
 
        self.assertEqual(output.getvalue(),
244
 
                         "=== target changed 'target1' => 'target2'\n")
245
 
 
246
 
 
247
 
class TestSnapshot(TestCaseWithTransport):
248
 
 
249
 
    def setUp(self):
250
 
        # for full testing we'll need a branch
251
 
        # with a subdir to test parent changes.
252
 
        # and a file, link and dir under that.
253
 
        # but right now I only need one attribute
254
 
        # to change, and then test merge patterns
255
 
        # with fake parent entries.
256
 
        super(TestSnapshot, self).setUp()
257
 
        self.wt = self.make_branch_and_tree('.')
258
 
        self.branch = self.wt.branch
259
 
        self.build_tree(['subdir/', 'subdir/file'], line_endings='binary')
260
 
        self.wt.add(['subdir', 'subdir/file'],
261
 
                                       ['dirid', 'fileid'])
262
 
        if has_symlinks():
263
 
            pass
264
 
        self.wt.commit('message_1', rev_id = '1')
265
 
        self.tree_1 = self.branch.repository.revision_tree('1')
266
 
        self.inv_1 = self.branch.repository.get_inventory('1')
267
 
        self.file_1 = self.inv_1['fileid']
268
 
        self.file_active = self.wt.inventory['fileid']
269
 
 
270
 
    def test_snapshot_new_revision(self):
271
 
        # This tests that a simple commit with no parents makes a new
272
 
        # revision value in the inventory entry
273
 
        self.file_active.snapshot('2', 'subdir/file', {}, self.wt, 
274
 
                                  self.branch.repository.weave_store,
275
 
                                  self.branch.get_transaction())
276
 
        # expected outcome - file_1 has a revision id of '2', and we can get
277
 
        # its text of 'file contents' out of the weave.
278
 
        self.assertEqual(self.file_1.revision, '1')
279
 
        self.assertEqual(self.file_active.revision, '2')
280
 
        # this should be a separate test probably, but lets check it once..
281
 
        lines = self.branch.repository.weave_store.get_weave(
282
 
            'fileid', 
283
 
            self.branch.get_transaction()).get_lines('2')
284
 
        self.assertEqual(lines, ['contents of subdir/file\n'])
285
 
 
286
 
    def test_snapshot_unchanged(self):
287
 
        #This tests that a simple commit does not make a new entry for
288
 
        # an unchanged inventory entry
289
 
        self.file_active.snapshot('2', 'subdir/file', {'1':self.file_1},
290
 
                                  self.wt, 
291
 
                                  self.branch.repository.weave_store,
292
 
                                  self.branch.get_transaction())
293
 
        self.assertEqual(self.file_1.revision, '1')
294
 
        self.assertEqual(self.file_active.revision, '1')
295
 
        vf = self.branch.repository.weave_store.get_weave(
296
 
            'fileid', 
297
 
            self.branch.repository.get_transaction())
298
 
        self.assertRaises(errors.RevisionNotPresent,
299
 
                          vf.get_lines,
300
 
                          '2')
301
 
 
302
 
    def test_snapshot_merge_identical_different_revid(self):
303
 
        # This tests that a commit with two identical parents, one of which has
304
 
        # a different revision id, results in a new revision id in the entry.
305
 
        # 1->other, commit a merge of other against 1, results in 2.
306
 
        other_ie = inventory.InventoryFile('fileid', 'newname', self.file_1.parent_id)
307
 
        other_ie = inventory.InventoryFile('fileid', 'file', self.file_1.parent_id)
308
 
        other_ie.revision = '1'
309
 
        other_ie.text_sha1 = self.file_1.text_sha1
310
 
        other_ie.text_size = self.file_1.text_size
311
 
        self.assertEqual(self.file_1, other_ie)
312
 
        other_ie.revision = 'other'
313
 
        self.assertNotEqual(self.file_1, other_ie)
314
 
        versionfile = self.branch.repository.weave_store.get_weave(
315
 
            'fileid', self.branch.repository.get_transaction())
316
 
        versionfile.clone_text('other', '1', ['1'])
317
 
        self.file_active.snapshot('2', 'subdir/file', 
318
 
                                  {'1':self.file_1, 'other':other_ie},
319
 
                                  self.wt, 
320
 
                                  self.branch.repository.weave_store,
321
 
                                  self.branch.get_transaction())
322
 
        self.assertEqual(self.file_active.revision, '2')
323
 
 
324
 
    def test_snapshot_changed(self):
325
 
        # This tests that a commit with one different parent results in a new
326
 
        # revision id in the entry.
327
 
        self.file_active.name='newname'
328
 
        rename('subdir/file', 'subdir/newname')
329
 
        self.file_active.snapshot('2', 'subdir/newname', {'1':self.file_1}, 
330
 
                                  self.wt,
331
 
                                  self.branch.repository.weave_store,
332
 
                                  self.branch.get_transaction())
333
 
        # expected outcome - file_1 has a revision id of '2'
334
 
        self.assertEqual(self.file_active.revision, '2')
335
 
 
336
 
 
337
 
class TestPreviousHeads(TestCaseWithTransport):
338
 
 
339
 
    def setUp(self):
340
 
        # we want several inventories, that respectively
341
 
        # give use the following scenarios:
342
 
        # A) fileid not in any inventory (A),
343
 
        # B) fileid present in one inventory (B) and (A,B)
344
 
        # C) fileid present in two inventories, and they
345
 
        #   are not mutual descendents (B, C)
346
 
        # D) fileid present in two inventories and one is
347
 
        #   a descendent of the other. (B, D)
348
 
        super(TestPreviousHeads, self).setUp()
349
 
        self.wt = self.make_branch_and_tree('.')
350
 
        self.branch = self.wt.branch
351
 
        self.build_tree(['file'])
352
 
        self.wt.commit('new branch', allow_pointless=True, rev_id='A')
353
 
        self.inv_A = self.branch.repository.get_inventory('A')
354
 
        self.wt.add(['file'], ['fileid'])
355
 
        self.wt.commit('add file', rev_id='B')
356
 
        self.inv_B = self.branch.repository.get_inventory('B')
357
 
        uncommit(self.branch, tree=self.wt)
358
 
        self.assertEqual(self.branch.revision_history(), ['A'])
359
 
        self.wt.commit('another add of file', rev_id='C')
360
 
        self.inv_C = self.branch.repository.get_inventory('C')
361
 
        self.wt.add_pending_merge('B')
362
 
        self.wt.commit('merge in B', rev_id='D')
363
 
        self.inv_D = self.branch.repository.get_inventory('D')
364
 
        self.file_active = self.wt.inventory['fileid']
365
 
        self.weave = self.branch.repository.weave_store.get_weave('fileid',
366
 
            self.branch.repository.get_transaction())
367
 
        
368
 
    def get_previous_heads(self, inventories):
369
 
        return self.file_active.find_previous_heads(
370
 
            inventories, 
371
 
            self.branch.repository.weave_store,
372
 
            self.branch.repository.get_transaction())
373
 
        
374
 
    def test_fileid_in_no_inventory(self):
375
 
        self.assertEqual({}, self.get_previous_heads([self.inv_A]))
376
 
 
377
 
    def test_fileid_in_one_inventory(self):
378
 
        self.assertEqual({'B':self.inv_B['fileid']},
379
 
                         self.get_previous_heads([self.inv_B]))
380
 
        self.assertEqual({'B':self.inv_B['fileid']},
381
 
                         self.get_previous_heads([self.inv_A, self.inv_B]))
382
 
        self.assertEqual({'B':self.inv_B['fileid']},
383
 
                         self.get_previous_heads([self.inv_B, self.inv_A]))
384
 
 
385
 
    def test_fileid_in_two_inventories_gives_both_entries(self):
386
 
        self.assertEqual({'B':self.inv_B['fileid'],
387
 
                          'C':self.inv_C['fileid']},
388
 
                          self.get_previous_heads([self.inv_B, self.inv_C]))
389
 
        self.assertEqual({'B':self.inv_B['fileid'],
390
 
                          'C':self.inv_C['fileid']},
391
 
                          self.get_previous_heads([self.inv_C, self.inv_B]))
392
 
 
393
 
    def test_fileid_in_two_inventories_already_merged_gives_head(self):
394
 
        self.assertEqual({'D':self.inv_D['fileid']},
395
 
                         self.get_previous_heads([self.inv_B, self.inv_D]))
396
 
        self.assertEqual({'D':self.inv_D['fileid']},
397
 
                         self.get_previous_heads([self.inv_D, self.inv_B]))
398
 
 
399
 
    # TODO: test two inventories with the same file revision 
400
 
 
401
 
 
402
 
class TestExecutable(TestCaseWithTransport):
403
 
 
404
 
    def test_stays_executable(self):
405
 
        a_id = "a-20051208024829-849e76f7968d7a86"
406
 
        b_id = "b-20051208024829-849e76f7968d7a86"
407
 
        wt = self.make_branch_and_tree('b1')
408
 
        b = wt.branch
409
 
        tt = TreeTransform(wt)
410
 
        tt.new_file('a', tt.root, 'a test\n', a_id, True)
411
 
        tt.new_file('b', tt.root, 'b test\n', b_id, False)
412
 
        tt.apply()
413
 
 
414
 
        self.failUnless(wt.is_executable(a_id), "'a' lost the execute bit")
415
 
 
416
 
        # reopen the tree and ensure it stuck.
417
 
        wt = wt.bzrdir.open_workingtree()
418
 
        self.assertEqual(['a', 'b'], [cn for cn,ie in wt.inventory.iter_entries()])
419
 
 
420
 
        self.failUnless(wt.is_executable(a_id), "'a' lost the execute bit")
421
 
        self.failIf(wt.is_executable(b_id), "'b' gained an execute bit")
422
 
 
423
 
        wt.commit('adding a,b', rev_id='r1')
424
 
 
425
 
        rev_tree = b.repository.revision_tree('r1')
426
 
        self.failUnless(rev_tree.is_executable(a_id), "'a' lost the execute bit")
427
 
        self.failIf(rev_tree.is_executable(b_id), "'b' gained an execute bit")
428
 
 
429
 
        self.failUnless(rev_tree.inventory[a_id].executable)
430
 
        self.failIf(rev_tree.inventory[b_id].executable)
431
 
 
432
 
        # Make sure the entries are gone
433
 
        os.remove('b1/a')
434
 
        os.remove('b1/b')
435
 
        self.failIf(wt.has_id(a_id))
436
 
        self.failIf(wt.has_filename('a'))
437
 
        self.failIf(wt.has_id(b_id))
438
 
        self.failIf(wt.has_filename('b'))
439
 
 
440
 
        # Make sure that revert is able to bring them back,
441
 
        # and sets 'a' back to being executable
442
 
 
443
 
        wt.revert(['a', 'b'], rev_tree, backups=False)
444
 
        self.assertEqual(['a', 'b'], [cn for cn,ie in wt.inventory.iter_entries()])
445
 
 
446
 
        self.failUnless(wt.is_executable(a_id), "'a' lost the execute bit")
447
 
        self.failIf(wt.is_executable(b_id), "'b' gained an execute bit")
448
 
 
449
 
        # Now remove them again, and make sure that after a
450
 
        # commit, they are still marked correctly
451
 
        os.remove('b1/a')
452
 
        os.remove('b1/b')
453
 
        wt.commit('removed', rev_id='r2')
454
 
 
455
 
        self.assertEqual([], [cn for cn,ie in wt.inventory.iter_entries()])
456
 
        self.failIf(wt.has_id(a_id))
457
 
        self.failIf(wt.has_filename('a'))
458
 
        self.failIf(wt.has_id(b_id))
459
 
        self.failIf(wt.has_filename('b'))
460
 
 
461
 
        # Now revert back to the previous commit
462
 
        wt.revert([], rev_tree, backups=False)
463
 
        self.assertEqual(['a', 'b'], [cn for cn,ie in wt.inventory.iter_entries()])
464
 
 
465
 
        self.failUnless(wt.is_executable(a_id), "'a' lost the execute bit")
466
 
        self.failIf(wt.is_executable(b_id), "'b' gained an execute bit")
467
 
 
468
 
        # Now make sure that 'bzr branch' also preserves the
469
 
        # executable bit
470
 
        # TODO: Maybe this should be a blackbox test
471
 
        d2 = b.bzrdir.clone('b2', revision_id='r1')
472
 
        t2 = d2.open_workingtree()
473
 
        b2 = t2.branch
474
 
        self.assertEquals('r1', b2.last_revision())
475
 
 
476
 
        self.assertEqual(['a', 'b'], [cn for cn,ie in t2.inventory.iter_entries()])
477
 
        self.failUnless(t2.is_executable(a_id), "'a' lost the execute bit")
478
 
        self.failIf(t2.is_executable(b_id), "'b' gained an execute bit")
479
 
 
480
 
        # Make sure pull will delete the files
481
 
        t2.pull(b)
482
 
        self.assertEquals('r2', b2.last_revision())
483
 
        self.assertEqual([], [cn for cn,ie in t2.inventory.iter_entries()])
484
 
 
485
 
        # Now commit the changes on the first branch
486
 
        # so that the second branch can pull the changes
487
 
        # and make sure that the executable bit has been copied
488
 
        wt.commit('resurrected', rev_id='r3')
489
 
 
490
 
        t2.pull(b)
491
 
        self.assertEquals('r3', b2.last_revision())
492
 
        self.assertEqual(['a', 'b'], [cn for cn,ie in t2.inventory.iter_entries()])
493
 
 
494
 
        self.failUnless(t2.is_executable(a_id), "'a' lost the execute bit")
495
 
        self.failIf(t2.is_executable(b_id), "'b' gained an execute bit")
496
 
 
497
 
class TestRevert(TestCaseWithTransport):
498
 
    def test_dangling_id(self):
499
 
        wt = self.make_branch_and_tree('b1')
500
 
        self.assertEqual(len(wt.inventory), 1)
501
 
        open('b1/a', 'wb').write('a test\n')
502
 
        wt.add('a')
503
 
        self.assertEqual(len(wt.inventory), 2)
504
 
        os.unlink('b1/a')
505
 
        wt.revert([])
506
 
        self.assertEqual(len(wt.inventory), 1)
507
 
 
508