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  • Committer: John Arbash Meinel
  • Date: 2006-07-09 15:47:02 UTC
  • mto: This revision was merged to the branch mainline in revision 1846.
  • Revision ID: john@arbash-meinel.com-20060709154702-304436a47a55e265
Renaming LockHelpers.py to lock_helpers.py

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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
import time
 
20
 
 
21
from bzrlib.branch import Branch
 
22
import bzrlib.errors as errors
 
23
from bzrlib.diff import internal_diff
 
24
from bzrlib.inventory import (Inventory, ROOT_ID, InventoryFile,
 
25
    InventoryDirectory, InventoryEntry)
 
26
import bzrlib.inventory as inventory
 
27
from bzrlib.osutils import (has_symlinks, rename, pathjoin, is_inside_any, 
 
28
    is_inside_or_parent_of_any)
 
29
from bzrlib.tests import TestCase, TestCaseWithTransport
 
30
from bzrlib.transform import TreeTransform
 
31
from bzrlib.uncommit import uncommit
 
32
 
 
33
 
 
34
class TestInventory(TestCase):
 
35
 
 
36
    def test_is_within(self):
 
37
 
 
38
        SRC_FOO_C = pathjoin('src', 'foo.c')
 
39
        for dirs, fn in [(['src', 'doc'], SRC_FOO_C),
 
40
                         (['src'], SRC_FOO_C),
 
41
                         (['src'], 'src'),
 
42
                         ]:
 
43
            self.assert_(is_inside_any(dirs, fn))
 
44
            
 
45
        for dirs, fn in [(['src'], 'srccontrol'),
 
46
                         (['src'], 'srccontrol/foo')]:
 
47
            self.assertFalse(is_inside_any(dirs, fn))
 
48
 
 
49
    def test_is_within_or_parent(self):
 
50
        for dirs, fn in [(['src', 'doc'], 'src/foo.c'),
 
51
                         (['src'], 'src/foo.c'),
 
52
                         (['src/bar.c'], 'src'),
 
53
                         (['src/bar.c', 'bla/foo.c'], 'src'),
 
54
                         (['src'], 'src'),
 
55
                         ]:
 
56
            self.assert_(is_inside_or_parent_of_any(dirs, fn))
 
57
            
 
58
        for dirs, fn in [(['src'], 'srccontrol'),
 
59
                         (['srccontrol/foo.c'], 'src'),
 
60
                         (['src'], 'srccontrol/foo')]:
 
61
            self.assertFalse(is_inside_or_parent_of_any(dirs, fn))
 
62
 
 
63
    def test_ids(self):
 
64
        """Test detection of files within selected directories."""
 
65
        inv = Inventory()
 
66
        
 
67
        for args in [('src', 'directory', 'src-id'), 
 
68
                     ('doc', 'directory', 'doc-id'), 
 
69
                     ('src/hello.c', 'file'),
 
70
                     ('src/bye.c', 'file', 'bye-id'),
 
71
                     ('Makefile', 'file')]:
 
72
            inv.add_path(*args)
 
73
            
 
74
        self.assertEqual(inv.path2id('src'), 'src-id')
 
75
        self.assertEqual(inv.path2id('src/bye.c'), 'bye-id')
 
76
        
 
77
        self.assert_('src-id' in inv)
 
78
 
 
79
    def test_iter_entries(self):
 
80
        inv = Inventory()
 
81
        
 
82
        for args in [('src', 'directory', 'src-id'), 
 
83
                     ('doc', 'directory', 'doc-id'), 
 
84
                     ('src/hello.c', 'file', 'hello-id'),
 
85
                     ('src/bye.c', 'file', 'bye-id'),
 
86
                     ('Makefile', 'file', 'makefile-id')]:
 
87
            inv.add_path(*args)
 
88
 
 
89
        self.assertEqual([
 
90
            ('Makefile', 'makefile-id'),
 
91
            ('doc', 'doc-id'),
 
92
            ('src', 'src-id'),
 
93
            ('src/bye.c', 'bye-id'),
 
94
            ('src/hello.c', 'hello-id'),
 
95
            ], [(path, ie.file_id) for path, ie in inv.iter_entries()])
 
96
            
 
97
    def test_iter_entries_by_dir(self):
 
98
        inv = Inventory()
 
99
        
 
100
        for args in [('src', 'directory', 'src-id'), 
 
101
                     ('doc', 'directory', 'doc-id'), 
 
102
                     ('src/hello.c', 'file', 'hello-id'),
 
103
                     ('src/bye.c', 'file', 'bye-id'),
 
104
                     ('zz', 'file', 'zz-id'),
 
105
                     ('src/sub/', 'directory', 'sub-id'),
 
106
                     ('src/zz.c', 'file', 'zzc-id'),
 
107
                     ('src/sub/a', 'file', 'a-id'),
 
108
                     ('Makefile', 'file', 'makefile-id')]:
 
109
            inv.add_path(*args)
 
110
 
 
111
        self.assertEqual([
 
112
            ('Makefile', 'makefile-id'),
 
113
            ('doc', 'doc-id'),
 
114
            ('src', 'src-id'),
 
115
            ('zz', 'zz-id'),
 
116
            ('src/bye.c', 'bye-id'),
 
117
            ('src/hello.c', 'hello-id'),
 
118
            ('src/sub', 'sub-id'),
 
119
            ('src/zz.c', 'zzc-id'),
 
120
            ('src/sub/a', 'a-id'),
 
121
            ], [(path, ie.file_id) for path, ie in inv.iter_entries_by_dir()])
 
122
            
 
123
    def test_version(self):
 
124
        """Inventory remembers the text's version."""
 
125
        inv = Inventory()
 
126
        ie = inv.add_path('foo.txt', 'file')
 
127
        ## XXX
 
128
 
 
129
 
 
130
class TestInventoryEntry(TestCase):
 
131
 
 
132
    def test_file_kind_character(self):
 
133
        file = inventory.InventoryFile('123', 'hello.c', ROOT_ID)
 
134
        self.assertEqual(file.kind_character(), '')
 
135
 
 
136
    def test_dir_kind_character(self):
 
137
        dir = inventory.InventoryDirectory('123', 'hello.c', ROOT_ID)
 
138
        self.assertEqual(dir.kind_character(), '/')
 
139
 
 
140
    def test_link_kind_character(self):
 
141
        dir = inventory.InventoryLink('123', 'hello.c', ROOT_ID)
 
142
        self.assertEqual(dir.kind_character(), '')
 
143
 
 
144
    def test_dir_detect_changes(self):
 
145
        left = inventory.InventoryDirectory('123', 'hello.c', ROOT_ID)
 
146
        left.text_sha1 = 123
 
147
        left.executable = True
 
148
        left.symlink_target='foo'
 
149
        right = inventory.InventoryDirectory('123', 'hello.c', ROOT_ID)
 
150
        right.text_sha1 = 321
 
151
        right.symlink_target='bar'
 
152
        self.assertEqual((False, False), left.detect_changes(right))
 
153
        self.assertEqual((False, False), right.detect_changes(left))
 
154
 
 
155
    def test_file_detect_changes(self):
 
156
        left = inventory.InventoryFile('123', 'hello.c', ROOT_ID)
 
157
        left.text_sha1 = 123
 
158
        right = inventory.InventoryFile('123', 'hello.c', ROOT_ID)
 
159
        right.text_sha1 = 123
 
160
        self.assertEqual((False, False), left.detect_changes(right))
 
161
        self.assertEqual((False, False), right.detect_changes(left))
 
162
        left.executable = True
 
163
        self.assertEqual((False, True), left.detect_changes(right))
 
164
        self.assertEqual((False, True), right.detect_changes(left))
 
165
        right.text_sha1 = 321
 
166
        self.assertEqual((True, True), left.detect_changes(right))
 
167
        self.assertEqual((True, True), right.detect_changes(left))
 
168
 
 
169
    def test_symlink_detect_changes(self):
 
170
        left = inventory.InventoryLink('123', 'hello.c', ROOT_ID)
 
171
        left.text_sha1 = 123
 
172
        left.executable = True
 
173
        left.symlink_target='foo'
 
174
        right = inventory.InventoryLink('123', 'hello.c', ROOT_ID)
 
175
        right.text_sha1 = 321
 
176
        right.symlink_target='foo'
 
177
        self.assertEqual((False, False), left.detect_changes(right))
 
178
        self.assertEqual((False, False), right.detect_changes(left))
 
179
        left.symlink_target = 'different'
 
180
        self.assertEqual((True, False), left.detect_changes(right))
 
181
        self.assertEqual((True, False), right.detect_changes(left))
 
182
 
 
183
    def test_file_has_text(self):
 
184
        file = inventory.InventoryFile('123', 'hello.c', ROOT_ID)
 
185
        self.failUnless(file.has_text())
 
186
 
 
187
    def test_directory_has_text(self):
 
188
        dir = inventory.InventoryDirectory('123', 'hello.c', ROOT_ID)
 
189
        self.failIf(dir.has_text())
 
190
 
 
191
    def test_link_has_text(self):
 
192
        link = inventory.InventoryLink('123', 'hello.c', ROOT_ID)
 
193
        self.failIf(link.has_text())
 
194
 
 
195
    def test_make_entry(self):
 
196
        self.assertIsInstance(inventory.make_entry("file", "name", ROOT_ID),
 
197
            inventory.InventoryFile)
 
198
        self.assertIsInstance(inventory.make_entry("symlink", "name", ROOT_ID),
 
199
            inventory.InventoryLink)
 
200
        self.assertIsInstance(inventory.make_entry("directory", "name", ROOT_ID),
 
201
            inventory.InventoryDirectory)
 
202
 
 
203
class TestEntryDiffing(TestCaseWithTransport):
 
204
 
 
205
    def setUp(self):
 
206
        super(TestEntryDiffing, self).setUp()
 
207
        self.wt = self.make_branch_and_tree('.')
 
208
        self.branch = self.wt.branch
 
209
        print >> open('file', 'wb'), 'foo'
 
210
        print >> open('binfile', 'wb'), 'foo'
 
211
        self.wt.add(['file'], ['fileid'])
 
212
        self.wt.add(['binfile'], ['binfileid'])
 
213
        if has_symlinks():
 
214
            os.symlink('target1', 'symlink')
 
215
            self.wt.add(['symlink'], ['linkid'])
 
216
        self.wt.commit('message_1', rev_id = '1')
 
217
        print >> open('file', 'wb'), 'bar'
 
218
        print >> open('binfile', 'wb'), 'x' * 1023 + '\x00'
 
219
        if has_symlinks():
 
220
            os.unlink('symlink')
 
221
            os.symlink('target2', 'symlink')
 
222
        self.tree_1 = self.branch.repository.revision_tree('1')
 
223
        self.inv_1 = self.branch.repository.get_inventory('1')
 
224
        self.file_1 = self.inv_1['fileid']
 
225
        self.file_1b = self.inv_1['binfileid']
 
226
        self.tree_2 = self.wt
 
227
        self.inv_2 = self.tree_2.read_working_inventory()
 
228
        self.file_2 = self.inv_2['fileid']
 
229
        self.file_2b = self.inv_2['binfileid']
 
230
        if has_symlinks():
 
231
            self.link_1 = self.inv_1['linkid']
 
232
            self.link_2 = self.inv_2['linkid']
 
233
 
 
234
    def test_file_diff_deleted(self):
 
235
        output = StringIO()
 
236
        self.file_1.diff(internal_diff, 
 
237
                          "old_label", self.tree_1,
 
238
                          "/dev/null", None, None,
 
239
                          output)
 
240
        self.assertEqual(output.getvalue(), "--- old_label\n"
 
241
                                            "+++ /dev/null\n"
 
242
                                            "@@ -1,1 +0,0 @@\n"
 
243
                                            "-foo\n"
 
244
                                            "\n")
 
245
 
 
246
    def test_file_diff_added(self):
 
247
        output = StringIO()
 
248
        self.file_1.diff(internal_diff, 
 
249
                          "new_label", self.tree_1,
 
250
                          "/dev/null", None, None,
 
251
                          output, reverse=True)
 
252
        self.assertEqual(output.getvalue(), "--- /dev/null\n"
 
253
                                            "+++ new_label\n"
 
254
                                            "@@ -0,0 +1,1 @@\n"
 
255
                                            "+foo\n"
 
256
                                            "\n")
 
257
 
 
258
    def test_file_diff_changed(self):
 
259
        output = StringIO()
 
260
        self.file_1.diff(internal_diff, 
 
261
                          "/dev/null", self.tree_1, 
 
262
                          "new_label", self.file_2, self.tree_2,
 
263
                          output)
 
264
        self.assertEqual(output.getvalue(), "--- /dev/null\n"
 
265
                                            "+++ new_label\n"
 
266
                                            "@@ -1,1 +1,1 @@\n"
 
267
                                            "-foo\n"
 
268
                                            "+bar\n"
 
269
                                            "\n")
 
270
        
 
271
    def test_file_diff_binary(self):
 
272
        output = StringIO()
 
273
        self.file_1.diff(internal_diff, 
 
274
                          "/dev/null", self.tree_1, 
 
275
                          "new_label", self.file_2b, self.tree_2,
 
276
                          output)
 
277
        self.assertEqual(output.getvalue(), 
 
278
                         "Binary files /dev/null and new_label differ\n")
 
279
    def test_link_diff_deleted(self):
 
280
        if not has_symlinks():
 
281
            return
 
282
        output = StringIO()
 
283
        self.link_1.diff(internal_diff, 
 
284
                          "old_label", self.tree_1,
 
285
                          "/dev/null", None, None,
 
286
                          output)
 
287
        self.assertEqual(output.getvalue(),
 
288
                         "=== target was 'target1'\n")
 
289
 
 
290
    def test_link_diff_added(self):
 
291
        if not has_symlinks():
 
292
            return
 
293
        output = StringIO()
 
294
        self.link_1.diff(internal_diff, 
 
295
                          "new_label", self.tree_1,
 
296
                          "/dev/null", None, None,
 
297
                          output, reverse=True)
 
298
        self.assertEqual(output.getvalue(),
 
299
                         "=== target is 'target1'\n")
 
300
 
 
301
    def test_link_diff_changed(self):
 
302
        if not has_symlinks():
 
303
            return
 
304
        output = StringIO()
 
305
        self.link_1.diff(internal_diff, 
 
306
                          "/dev/null", self.tree_1, 
 
307
                          "new_label", self.link_2, self.tree_2,
 
308
                          output)
 
309
        self.assertEqual(output.getvalue(),
 
310
                         "=== target changed 'target1' => 'target2'\n")
 
311
 
 
312
 
 
313
class TestSnapshot(TestCaseWithTransport):
 
314
 
 
315
    def setUp(self):
 
316
        # for full testing we'll need a branch
 
317
        # with a subdir to test parent changes.
 
318
        # and a file, link and dir under that.
 
319
        # but right now I only need one attribute
 
320
        # to change, and then test merge patterns
 
321
        # with fake parent entries.
 
322
        super(TestSnapshot, self).setUp()
 
323
        self.wt = self.make_branch_and_tree('.')
 
324
        self.branch = self.wt.branch
 
325
        self.build_tree(['subdir/', 'subdir/file'], line_endings='binary')
 
326
        self.wt.add(['subdir', 'subdir/file'],
 
327
                                       ['dirid', 'fileid'])
 
328
        if has_symlinks():
 
329
            pass
 
330
        self.wt.commit('message_1', rev_id = '1')
 
331
        self.tree_1 = self.branch.repository.revision_tree('1')
 
332
        self.inv_1 = self.branch.repository.get_inventory('1')
 
333
        self.file_1 = self.inv_1['fileid']
 
334
        self.file_active = self.wt.inventory['fileid']
 
335
        self.builder = self.branch.get_commit_builder([], timestamp=time.time(), revision_id='2')
 
336
 
 
337
    def test_snapshot_new_revision(self):
 
338
        # This tests that a simple commit with no parents makes a new
 
339
        # revision value in the inventory entry
 
340
        self.file_active.snapshot('2', 'subdir/file', {}, self.wt, self.builder)
 
341
        # expected outcome - file_1 has a revision id of '2', and we can get
 
342
        # its text of 'file contents' out of the weave.
 
343
        self.assertEqual(self.file_1.revision, '1')
 
344
        self.assertEqual(self.file_active.revision, '2')
 
345
        # this should be a separate test probably, but lets check it once..
 
346
        lines = self.branch.repository.weave_store.get_weave(
 
347
            'fileid', 
 
348
            self.branch.get_transaction()).get_lines('2')
 
349
        self.assertEqual(lines, ['contents of subdir/file\n'])
 
350
 
 
351
    def test_snapshot_unchanged(self):
 
352
        #This tests that a simple commit does not make a new entry for
 
353
        # an unchanged inventory entry
 
354
        self.file_active.snapshot('2', 'subdir/file', {'1':self.file_1},
 
355
                                  self.wt, self.builder)
 
356
        self.assertEqual(self.file_1.revision, '1')
 
357
        self.assertEqual(self.file_active.revision, '1')
 
358
        vf = self.branch.repository.weave_store.get_weave(
 
359
            'fileid', 
 
360
            self.branch.repository.get_transaction())
 
361
        self.assertRaises(errors.RevisionNotPresent,
 
362
                          vf.get_lines,
 
363
                          '2')
 
364
 
 
365
    def test_snapshot_merge_identical_different_revid(self):
 
366
        # This tests that a commit with two identical parents, one of which has
 
367
        # a different revision id, results in a new revision id in the entry.
 
368
        # 1->other, commit a merge of other against 1, results in 2.
 
369
        other_ie = inventory.InventoryFile('fileid', 'newname', self.file_1.parent_id)
 
370
        other_ie = inventory.InventoryFile('fileid', 'file', self.file_1.parent_id)
 
371
        other_ie.revision = '1'
 
372
        other_ie.text_sha1 = self.file_1.text_sha1
 
373
        other_ie.text_size = self.file_1.text_size
 
374
        self.assertEqual(self.file_1, other_ie)
 
375
        other_ie.revision = 'other'
 
376
        self.assertNotEqual(self.file_1, other_ie)
 
377
        versionfile = self.branch.repository.weave_store.get_weave(
 
378
            'fileid', self.branch.repository.get_transaction())
 
379
        versionfile.clone_text('other', '1', ['1'])
 
380
        self.file_active.snapshot('2', 'subdir/file', 
 
381
                                  {'1':self.file_1, 'other':other_ie},
 
382
                                  self.wt, self.builder)
 
383
        self.assertEqual(self.file_active.revision, '2')
 
384
 
 
385
    def test_snapshot_changed(self):
 
386
        # This tests that a commit with one different parent results in a new
 
387
        # revision id in the entry.
 
388
        self.file_active.name='newname'
 
389
        rename('subdir/file', 'subdir/newname')
 
390
        self.file_active.snapshot('2', 'subdir/newname', {'1':self.file_1}, 
 
391
                                  self.wt, self.builder)
 
392
        # expected outcome - file_1 has a revision id of '2'
 
393
        self.assertEqual(self.file_active.revision, '2')
 
394
 
 
395
 
 
396
class TestPreviousHeads(TestCaseWithTransport):
 
397
 
 
398
    def setUp(self):
 
399
        # we want several inventories, that respectively
 
400
        # give use the following scenarios:
 
401
        # A) fileid not in any inventory (A),
 
402
        # B) fileid present in one inventory (B) and (A,B)
 
403
        # C) fileid present in two inventories, and they
 
404
        #   are not mutual descendents (B, C)
 
405
        # D) fileid present in two inventories and one is
 
406
        #   a descendent of the other. (B, D)
 
407
        super(TestPreviousHeads, self).setUp()
 
408
        self.wt = self.make_branch_and_tree('.')
 
409
        self.branch = self.wt.branch
 
410
        self.build_tree(['file'])
 
411
        self.wt.commit('new branch', allow_pointless=True, rev_id='A')
 
412
        self.inv_A = self.branch.repository.get_inventory('A')
 
413
        self.wt.add(['file'], ['fileid'])
 
414
        self.wt.commit('add file', rev_id='B')
 
415
        self.inv_B = self.branch.repository.get_inventory('B')
 
416
        uncommit(self.branch, tree=self.wt)
 
417
        self.assertEqual(self.branch.revision_history(), ['A'])
 
418
        self.wt.commit('another add of file', rev_id='C')
 
419
        self.inv_C = self.branch.repository.get_inventory('C')
 
420
        self.wt.add_pending_merge('B')
 
421
        self.wt.commit('merge in B', rev_id='D')
 
422
        self.inv_D = self.branch.repository.get_inventory('D')
 
423
        self.file_active = self.wt.inventory['fileid']
 
424
        self.weave = self.branch.repository.weave_store.get_weave('fileid',
 
425
            self.branch.repository.get_transaction())
 
426
        
 
427
    def get_previous_heads(self, inventories):
 
428
        return self.file_active.find_previous_heads(
 
429
            inventories, 
 
430
            self.branch.repository.weave_store,
 
431
            self.branch.repository.get_transaction())
 
432
        
 
433
    def test_fileid_in_no_inventory(self):
 
434
        self.assertEqual({}, self.get_previous_heads([self.inv_A]))
 
435
 
 
436
    def test_fileid_in_one_inventory(self):
 
437
        self.assertEqual({'B':self.inv_B['fileid']},
 
438
                         self.get_previous_heads([self.inv_B]))
 
439
        self.assertEqual({'B':self.inv_B['fileid']},
 
440
                         self.get_previous_heads([self.inv_A, self.inv_B]))
 
441
        self.assertEqual({'B':self.inv_B['fileid']},
 
442
                         self.get_previous_heads([self.inv_B, self.inv_A]))
 
443
 
 
444
    def test_fileid_in_two_inventories_gives_both_entries(self):
 
445
        self.assertEqual({'B':self.inv_B['fileid'],
 
446
                          'C':self.inv_C['fileid']},
 
447
                          self.get_previous_heads([self.inv_B, self.inv_C]))
 
448
        self.assertEqual({'B':self.inv_B['fileid'],
 
449
                          'C':self.inv_C['fileid']},
 
450
                          self.get_previous_heads([self.inv_C, self.inv_B]))
 
451
 
 
452
    def test_fileid_in_two_inventories_already_merged_gives_head(self):
 
453
        self.assertEqual({'D':self.inv_D['fileid']},
 
454
                         self.get_previous_heads([self.inv_B, self.inv_D]))
 
455
        self.assertEqual({'D':self.inv_D['fileid']},
 
456
                         self.get_previous_heads([self.inv_D, self.inv_B]))
 
457
 
 
458
    # TODO: test two inventories with the same file revision 
 
459
 
 
460
 
 
461
class TestDescribeChanges(TestCase):
 
462
 
 
463
    def test_describe_change(self):
 
464
        # we need to test the following change combinations:
 
465
        # rename
 
466
        # reparent
 
467
        # modify
 
468
        # gone
 
469
        # added
 
470
        # renamed/reparented and modified
 
471
        # change kind (perhaps can't be done yet?)
 
472
        # also, merged in combination with all of these?
 
473
        old_a = InventoryFile('a-id', 'a_file', ROOT_ID)
 
474
        old_a.text_sha1 = '123132'
 
475
        old_a.text_size = 0
 
476
        new_a = InventoryFile('a-id', 'a_file', ROOT_ID)
 
477
        new_a.text_sha1 = '123132'
 
478
        new_a.text_size = 0
 
479
 
 
480
        self.assertChangeDescription('unchanged', old_a, new_a)
 
481
 
 
482
        new_a.text_size = 10
 
483
        new_a.text_sha1 = 'abcabc'
 
484
        self.assertChangeDescription('modified', old_a, new_a)
 
485
 
 
486
        self.assertChangeDescription('added', None, new_a)
 
487
        self.assertChangeDescription('removed', old_a, None)
 
488
        # perhaps a bit questionable but seems like the most reasonable thing...
 
489
        self.assertChangeDescription('unchanged', None, None)
 
490
 
 
491
        # in this case it's both renamed and modified; show a rename and 
 
492
        # modification:
 
493
        new_a.name = 'newfilename'
 
494
        self.assertChangeDescription('modified and renamed', old_a, new_a)
 
495
 
 
496
        # reparenting is 'renaming'
 
497
        new_a.name = old_a.name
 
498
        new_a.parent_id = 'somedir-id'
 
499
        self.assertChangeDescription('modified and renamed', old_a, new_a)
 
500
 
 
501
        # reset the content values so its not modified
 
502
        new_a.text_size = old_a.text_size
 
503
        new_a.text_sha1 = old_a.text_sha1
 
504
        new_a.name = old_a.name
 
505
 
 
506
        new_a.name = 'newfilename'
 
507
        self.assertChangeDescription('renamed', old_a, new_a)
 
508
 
 
509
        # reparenting is 'renaming'
 
510
        new_a.name = old_a.name
 
511
        new_a.parent_id = 'somedir-id'
 
512
        self.assertChangeDescription('renamed', old_a, new_a)
 
513
 
 
514
    def assertChangeDescription(self, expected_change, old_ie, new_ie):
 
515
        change = InventoryEntry.describe_change(old_ie, new_ie)
 
516
        self.assertEqual(expected_change, change)
 
517
 
 
518
 
 
519
class TestRevert(TestCaseWithTransport):
 
520
 
 
521
    def test_dangling_id(self):
 
522
        wt = self.make_branch_and_tree('b1')
 
523
        self.assertEqual(len(wt.inventory), 1)
 
524
        open('b1/a', 'wb').write('a test\n')
 
525
        wt.add('a')
 
526
        self.assertEqual(len(wt.inventory), 2)
 
527
        os.unlink('b1/a')
 
528
        wt.revert([])
 
529
        self.assertEqual(len(wt.inventory), 1)