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Viewing changes to breezy/tests/test_branchbuilder.py

  • Committer: Jelmer Vernooij
  • Date: 2017-07-30 18:38:48 UTC
  • mfrom: (6740.1.1 breezy-conf-1)
  • Revision ID: jelmer@jelmer.uk-20170730183848-195b9ch7sclkxmqs
Merge lp:~jelmer/brz/breezy-conf

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1
# Copyright (C) 2007-2011 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
"""Tests for the BranchBuilder class."""
 
18
 
 
19
from .. import (
 
20
    branch as _mod_branch,
 
21
    revision as _mod_revision,
 
22
    tests,
 
23
    )
 
24
from ..bzr import (
 
25
    branch as _mod_bzrbranch,
 
26
    )
 
27
from ..branchbuilder import BranchBuilder
 
28
 
 
29
 
 
30
class TestBranchBuilder(tests.TestCaseWithMemoryTransport):
 
31
 
 
32
    def test_create(self):
 
33
        """Test the constructor api."""
 
34
        builder = BranchBuilder(self.get_transport().clone('foo'))
 
35
        # we dont care if the branch has been built or not at this point.
 
36
 
 
37
    def test_get_branch(self):
 
38
        """get_branch returns the created branch."""
 
39
        builder = BranchBuilder(self.get_transport().clone('foo'))
 
40
        branch = builder.get_branch()
 
41
        self.assertIsInstance(branch, _mod_branch.Branch)
 
42
        self.assertEqual(self.get_transport().clone('foo').base,
 
43
            branch.base)
 
44
        self.assertEqual(
 
45
            (0, _mod_revision.NULL_REVISION),
 
46
            branch.last_revision_info())
 
47
 
 
48
    def test_format(self):
 
49
        """Making a BranchBuilder with a format option sets the branch type."""
 
50
        builder = BranchBuilder(self.get_transport(), format='dirstate-tags')
 
51
        branch = builder.get_branch()
 
52
        self.assertIsInstance(branch, _mod_bzrbranch.BzrBranch6)
 
53
 
 
54
    def test_build_one_commit(self):
 
55
        """doing build_commit causes a commit to happen."""
 
56
        builder = BranchBuilder(self.get_transport().clone('foo'))
 
57
        rev_id = builder.build_commit()
 
58
        branch = builder.get_branch()
 
59
        self.assertEqual((1, rev_id), branch.last_revision_info())
 
60
        self.assertEqual(
 
61
            'commit 1',
 
62
            branch.repository.get_revision(branch.last_revision()).message)
 
63
 
 
64
    def test_build_commit_timestamp(self):
 
65
        """You can set a date when committing."""
 
66
        builder = self.make_branch_builder('foo')
 
67
        rev_id = builder.build_commit(timestamp=1236043340)
 
68
        branch = builder.get_branch()
 
69
        self.assertEqual((1, rev_id), branch.last_revision_info())
 
70
        rev = branch.repository.get_revision(branch.last_revision())
 
71
        self.assertEqual(
 
72
            'commit 1',
 
73
            rev.message)
 
74
        self.assertEqual(
 
75
            1236043340,
 
76
            int(rev.timestamp))
 
77
 
 
78
    def test_build_two_commits(self):
 
79
        """The second commit has the right parents and message."""
 
80
        builder = BranchBuilder(self.get_transport().clone('foo'))
 
81
        rev_id1 = builder.build_commit()
 
82
        rev_id2 = builder.build_commit()
 
83
        branch = builder.get_branch()
 
84
        self.assertEqual((2, rev_id2), branch.last_revision_info())
 
85
        self.assertEqual(
 
86
            'commit 2',
 
87
            branch.repository.get_revision(branch.last_revision()).message)
 
88
        self.assertEqual(
 
89
            [rev_id1],
 
90
            branch.repository.get_revision(branch.last_revision()).parent_ids)
 
91
 
 
92
    def test_build_commit_parent_ids(self):
 
93
        """build_commit() takes a parent_ids argument."""
 
94
        builder = BranchBuilder(self.get_transport().clone('foo'))
 
95
        rev_id1 = builder.build_commit(
 
96
            parent_ids=["ghost"], allow_leftmost_as_ghost=True)
 
97
        rev_id2 = builder.build_commit(parent_ids=[])
 
98
        branch = builder.get_branch()
 
99
        self.assertEqual((1, rev_id2), branch.last_revision_info())
 
100
        self.assertEqual(
 
101
            ["ghost"],
 
102
            branch.repository.get_revision(rev_id1).parent_ids)
 
103
 
 
104
 
 
105
class TestBranchBuilderBuildSnapshot(tests.TestCaseWithMemoryTransport):
 
106
 
 
107
    def assertTreeShape(self, expected_shape, tree):
 
108
        """Check that the tree shape matches expectations."""
 
109
        tree.lock_read()
 
110
        try:
 
111
            entries = [(path, ie.file_id, ie.kind)
 
112
                       for path, ie in tree.iter_entries_by_dir()]
 
113
        finally:
 
114
            tree.unlock()
 
115
        self.assertEqual(expected_shape, entries)
 
116
 
 
117
    def build_a_rev(self):
 
118
        builder = BranchBuilder(self.get_transport().clone('foo'))
 
119
        rev_id1 = builder.build_snapshot('A-id', None,
 
120
            [('add', ('', 'a-root-id', 'directory', None)),
 
121
             ('add', ('a', 'a-id', 'file', 'contents'))])
 
122
        self.assertEqual('A-id', rev_id1)
 
123
        return builder
 
124
 
 
125
    def test_add_one_file(self):
 
126
        builder = self.build_a_rev()
 
127
        branch = builder.get_branch()
 
128
        self.assertEqual((1, 'A-id'), branch.last_revision_info())
 
129
        rev_tree = branch.repository.revision_tree('A-id')
 
130
        rev_tree.lock_read()
 
131
        self.addCleanup(rev_tree.unlock)
 
132
        self.assertTreeShape([(u'', 'a-root-id', 'directory'),
 
133
                              (u'a', 'a-id', 'file')], rev_tree)
 
134
        self.assertEqual('contents', rev_tree.get_file_text('a-id'))
 
135
 
 
136
    def test_add_second_file(self):
 
137
        builder = self.build_a_rev()
 
138
        rev_id2 = builder.build_snapshot('B-id', None,
 
139
            [('add', ('b', 'b-id', 'file', 'content_b'))])
 
140
        self.assertEqual('B-id', rev_id2)
 
141
        branch = builder.get_branch()
 
142
        self.assertEqual((2, rev_id2), branch.last_revision_info())
 
143
        rev_tree = branch.repository.revision_tree(rev_id2)
 
144
        rev_tree.lock_read()
 
145
        self.addCleanup(rev_tree.unlock)
 
146
        self.assertTreeShape([(u'', 'a-root-id', 'directory'),
 
147
                              (u'a', 'a-id', 'file'),
 
148
                              (u'b', 'b-id', 'file')], rev_tree)
 
149
        self.assertEqual('content_b', rev_tree.get_file_text('b-id'))
 
150
 
 
151
    def test_add_empty_dir(self):
 
152
        builder = self.build_a_rev()
 
153
        rev_id2 = builder.build_snapshot('B-id', None,
 
154
            [('add', ('b', 'b-id', 'directory', None))])
 
155
        rev_tree = builder.get_branch().repository.revision_tree('B-id')
 
156
        self.assertTreeShape([(u'', 'a-root-id', 'directory'),
 
157
                              (u'a', 'a-id', 'file'),
 
158
                              (u'b', 'b-id', 'directory'),
 
159
                             ], rev_tree)
 
160
 
 
161
    def test_commit_timestamp(self):
 
162
        builder = self.make_branch_builder('foo')
 
163
        rev_id = builder.build_snapshot(None, None,
 
164
            [('add', (u'', None, 'directory', None))],
 
165
            timestamp=1234567890)
 
166
        rev = builder.get_branch().repository.get_revision(rev_id)
 
167
        self.assertEqual(
 
168
            1234567890,
 
169
            int(rev.timestamp))
 
170
 
 
171
    def test_commit_message_default(self):
 
172
        builder = BranchBuilder(self.get_transport().clone('foo'))
 
173
        rev_id = builder.build_snapshot(None, None,
 
174
            [('add', (u'', None, 'directory', None))])
 
175
        branch = builder.get_branch()
 
176
        rev = branch.repository.get_revision(rev_id)
 
177
        self.assertEqual(u'commit 1', rev.message)
 
178
 
 
179
    def test_commit_message_supplied(self):
 
180
        builder = BranchBuilder(self.get_transport().clone('foo'))
 
181
        rev_id = builder.build_snapshot(None, None,
 
182
            [('add', (u'', None, 'directory', None))],
 
183
            message=u'Foo')
 
184
        branch = builder.get_branch()
 
185
        rev = branch.repository.get_revision(rev_id)
 
186
        self.assertEqual(u'Foo', rev.message)
 
187
 
 
188
    def test_commit_message_callback(self):
 
189
        builder = BranchBuilder(self.get_transport().clone('foo'))
 
190
        rev_id = builder.build_snapshot(None, None,
 
191
            [('add', (u'', None, 'directory', None))],
 
192
            message_callback=lambda x:u'Foo')
 
193
        branch = builder.get_branch()
 
194
        rev = branch.repository.get_revision(rev_id)
 
195
        self.assertEqual(u'Foo', rev.message)
 
196
 
 
197
    def test_modify_file(self):
 
198
        builder = self.build_a_rev()
 
199
        rev_id2 = builder.build_snapshot('B-id', None,
 
200
            [('modify', ('a-id', 'new\ncontent\n'))])
 
201
        self.assertEqual('B-id', rev_id2)
 
202
        branch = builder.get_branch()
 
203
        rev_tree = branch.repository.revision_tree(rev_id2)
 
204
        rev_tree.lock_read()
 
205
        self.addCleanup(rev_tree.unlock)
 
206
        self.assertEqual('new\ncontent\n', rev_tree.get_file_text('a-id'))
 
207
 
 
208
    def test_delete_file(self):
 
209
        builder = self.build_a_rev()
 
210
        rev_id2 = builder.build_snapshot('B-id', None,
 
211
            [('unversion', 'a-id')])
 
212
        self.assertEqual('B-id', rev_id2)
 
213
        branch = builder.get_branch()
 
214
        rev_tree = branch.repository.revision_tree(rev_id2)
 
215
        rev_tree.lock_read()
 
216
        self.addCleanup(rev_tree.unlock)
 
217
        self.assertTreeShape([(u'', 'a-root-id', 'directory')], rev_tree)
 
218
 
 
219
    def test_delete_directory(self):
 
220
        builder = self.build_a_rev()
 
221
        rev_id2 = builder.build_snapshot('B-id', None,
 
222
            [('add', ('b', 'b-id', 'directory', None)),
 
223
             ('add', ('b/c', 'c-id', 'file', 'foo\n')),
 
224
             ('add', ('b/d', 'd-id', 'directory', None)),
 
225
             ('add', ('b/d/e', 'e-id', 'file', 'eff\n')),
 
226
            ])
 
227
        rev_tree = builder.get_branch().repository.revision_tree('B-id')
 
228
        self.assertTreeShape([(u'', 'a-root-id', 'directory'),
 
229
                              (u'a', 'a-id', 'file'),
 
230
                              (u'b', 'b-id', 'directory'),
 
231
                              (u'b/c', 'c-id', 'file'),
 
232
                              (u'b/d', 'd-id', 'directory'),
 
233
                              (u'b/d/e', 'e-id', 'file')], rev_tree)
 
234
        # Removing a directory removes all child dirs
 
235
        builder.build_snapshot('C-id', None, [('unversion', 'b-id')])
 
236
        rev_tree = builder.get_branch().repository.revision_tree('C-id')
 
237
        self.assertTreeShape([(u'', 'a-root-id', 'directory'),
 
238
                              (u'a', 'a-id', 'file'),
 
239
                             ], rev_tree)
 
240
 
 
241
    def test_unknown_action(self):
 
242
        builder = self.build_a_rev()
 
243
        e = self.assertRaises(ValueError,
 
244
            builder.build_snapshot, 'B-id', None, [('weirdo', ('foo',))])
 
245
        self.assertEqual('Unknown build action: "weirdo"', str(e))
 
246
 
 
247
    def test_rename(self):
 
248
        builder = self.build_a_rev()
 
249
        builder.build_snapshot('B-id', None,
 
250
            [('rename', ('a', 'b'))])
 
251
        rev_tree = builder.get_branch().repository.revision_tree('B-id')
 
252
        self.assertTreeShape([(u'', 'a-root-id', 'directory'),
 
253
                              (u'b', 'a-id', 'file')], rev_tree)
 
254
 
 
255
    def test_rename_into_subdir(self):
 
256
        builder = self.build_a_rev()
 
257
        builder.build_snapshot('B-id', None,
 
258
            [('add', ('dir', 'dir-id', 'directory', None)),
 
259
             ('rename', ('a', 'dir/a'))])
 
260
        rev_tree = builder.get_branch().repository.revision_tree('B-id')
 
261
        self.assertTreeShape([(u'', 'a-root-id', 'directory'),
 
262
                              (u'dir', 'dir-id', 'directory'),
 
263
                              (u'dir/a', 'a-id', 'file')], rev_tree)
 
264
 
 
265
    def test_rename_out_of_unversioned_subdir(self):
 
266
        builder = self.build_a_rev()
 
267
        builder.build_snapshot('B-id', None,
 
268
            [('add', ('dir', 'dir-id', 'directory', None)),
 
269
             ('rename', ('a', 'dir/a'))])
 
270
        builder.build_snapshot('C-id', None,
 
271
            [('rename', ('dir/a', 'a')),
 
272
             ('unversion', 'dir-id')])
 
273
        rev_tree = builder.get_branch().repository.revision_tree('C-id')
 
274
        self.assertTreeShape([(u'', 'a-root-id', 'directory'),
 
275
                              (u'a', 'a-id', 'file')], rev_tree)
 
276
 
 
277
    def test_set_parent(self):
 
278
        builder = self.build_a_rev()
 
279
        builder.start_series()
 
280
        self.addCleanup(builder.finish_series)
 
281
        builder.build_snapshot('B-id', ['A-id'],
 
282
            [('modify', ('a-id', 'new\ncontent\n'))])
 
283
        builder.build_snapshot('C-id', ['A-id'],
 
284
            [('add', ('c', 'c-id', 'file', 'alt\ncontent\n'))])
 
285
        # We should now have a graph:
 
286
        #   A
 
287
        #   |\
 
288
        #   C B
 
289
        # And not A => B => C
 
290
        repo = builder.get_branch().repository
 
291
        self.assertEqual({'B-id': ('A-id',), 'C-id': ('A-id',)},
 
292
                         repo.get_parent_map(['B-id', 'C-id']))
 
293
        b_tree = repo.revision_tree('B-id')
 
294
        self.assertTreeShape([(u'', 'a-root-id', 'directory'),
 
295
                              (u'a', 'a-id', 'file'),
 
296
                             ], b_tree)
 
297
        self.assertEqual('new\ncontent\n', b_tree.get_file_text('a-id'))
 
298
 
 
299
        # We should still be using the content from A in C, not from B
 
300
        c_tree = repo.revision_tree('C-id')
 
301
        self.assertTreeShape([(u'', 'a-root-id', 'directory'),
 
302
                              (u'a', 'a-id', 'file'),
 
303
                              (u'c', 'c-id', 'file'),
 
304
                             ], c_tree)
 
305
        self.assertEqual('contents', c_tree.get_file_text('a-id'))
 
306
        self.assertEqual('alt\ncontent\n', c_tree.get_file_text('c-id'))
 
307
 
 
308
    def test_set_merge_parent(self):
 
309
        builder = self.build_a_rev()
 
310
        builder.start_series()
 
311
        self.addCleanup(builder.finish_series)
 
312
        builder.build_snapshot('B-id', ['A-id'],
 
313
            [('add', ('b', 'b-id', 'file', 'b\ncontent\n'))])
 
314
        builder.build_snapshot('C-id', ['A-id'],
 
315
            [('add', ('c', 'c-id', 'file', 'alt\ncontent\n'))])
 
316
        builder.build_snapshot('D-id', ['B-id', 'C-id'], [])
 
317
        repo = builder.get_branch().repository
 
318
        self.assertEqual({'B-id': ('A-id',), 'C-id': ('A-id',),
 
319
                          'D-id': ('B-id', 'C-id')},
 
320
                         repo.get_parent_map(['B-id', 'C-id', 'D-id']))
 
321
        d_tree = repo.revision_tree('D-id')
 
322
        # Note: by default a merge node does *not* pull in the changes from the
 
323
        #       merged tree, you have to supply it yourself.
 
324
        self.assertTreeShape([(u'', 'a-root-id', 'directory'),
 
325
                              (u'a', 'a-id', 'file'),
 
326
                              (u'b', 'b-id', 'file'),
 
327
                             ], d_tree)
 
328
 
 
329
    def test_set_merge_parent_and_contents(self):
 
330
        builder = self.build_a_rev()
 
331
        builder.start_series()
 
332
        self.addCleanup(builder.finish_series)
 
333
        builder.build_snapshot('B-id', ['A-id'],
 
334
            [('add', ('b', 'b-id', 'file', 'b\ncontent\n'))])
 
335
        builder.build_snapshot('C-id', ['A-id'],
 
336
            [('add', ('c', 'c-id', 'file', 'alt\ncontent\n'))])
 
337
        builder.build_snapshot('D-id', ['B-id', 'C-id'],
 
338
            [('add', ('c', 'c-id', 'file', 'alt\ncontent\n'))])
 
339
        repo = builder.get_branch().repository
 
340
        self.assertEqual({'B-id': ('A-id',), 'C-id': ('A-id',),
 
341
                          'D-id': ('B-id', 'C-id')},
 
342
                         repo.get_parent_map(['B-id', 'C-id', 'D-id']))
 
343
        d_tree = repo.revision_tree('D-id')
 
344
        self.assertTreeShape([(u'', 'a-root-id', 'directory'),
 
345
                              (u'a', 'a-id', 'file'),
 
346
                              (u'b', 'b-id', 'file'),
 
347
                              (u'c', 'c-id', 'file'),
 
348
                             ], d_tree)
 
349
        # Because we copied the exact text into *this* tree, the 'c' file
 
350
        # should look like it was not modified in the merge
 
351
        self.assertEqual('C-id', d_tree.get_file_revision('c-id'))
 
352
 
 
353
    def test_set_parent_to_null(self):
 
354
        builder = self.build_a_rev()
 
355
        builder.start_series()
 
356
        self.addCleanup(builder.finish_series)
 
357
        builder.build_snapshot('B-id', [],
 
358
            [('add', ('', None, 'directory', None))])
 
359
        # We should now have a graph:
 
360
        #   A B
 
361
        # And not A => B
 
362
        repo = builder.get_branch().repository
 
363
        self.assertEqual({'A-id': (_mod_revision.NULL_REVISION,),
 
364
                          'B-id': (_mod_revision.NULL_REVISION,),},
 
365
                         repo.get_parent_map(['A-id', 'B-id']))
 
366
 
 
367
    
 
368
    def test_start_finish_series(self):
 
369
        builder = BranchBuilder(self.get_transport().clone('foo'))
 
370
        builder.start_series()
 
371
        try:
 
372
            self.assertIsNot(None, builder._tree)
 
373
            self.assertEqual('w', builder._tree._lock_mode)
 
374
            self.assertTrue(builder._branch.is_locked())
 
375
        finally:
 
376
            builder.finish_series()
 
377
        self.assertIs(None, builder._tree)
 
378
        self.assertFalse(builder._branch.is_locked())
 
379
 
 
380
    def test_ghost_mainline_history(self):
 
381
        builder = BranchBuilder(self.get_transport().clone('foo'))
 
382
        builder.start_series()
 
383
        try:
 
384
            builder.build_snapshot('tip', ['ghost'],
 
385
                [('add', ('', 'ROOT_ID', 'directory', ''))],
 
386
                allow_leftmost_as_ghost=True)
 
387
        finally:
 
388
            builder.finish_series()
 
389
        b = builder.get_branch()
 
390
        b.lock_read()
 
391
        self.addCleanup(b.unlock)
 
392
        self.assertEqual(('ghost',),
 
393
            b.repository.get_graph().get_parent_map(['tip'])['tip'])
 
394
 
 
395
    def test_unversion_root_add_new_root(self):
 
396
        builder = BranchBuilder(self.get_transport().clone('foo'))
 
397
        builder.start_series()
 
398
        builder.build_snapshot('rev-1', None,
 
399
            [('add', ('', 'TREE_ROOT', 'directory', ''))])
 
400
        builder.build_snapshot('rev-2', None,
 
401
            [('unversion', 'TREE_ROOT'),
 
402
             ('add', ('', 'my-root', 'directory', ''))])
 
403
        builder.finish_series()
 
404
        rev_tree = builder.get_branch().repository.revision_tree('rev-2')
 
405
        self.assertTreeShape([(u'', 'my-root', 'directory')], rev_tree)
 
406
 
 
407
    def test_empty_flush(self):
 
408
        """A flush with no actions before it is a no-op."""
 
409
        builder = BranchBuilder(self.get_transport().clone('foo'))
 
410
        builder.start_series()
 
411
        builder.build_snapshot('rev-1', None,
 
412
            [('add', ('', 'TREE_ROOT', 'directory', ''))])
 
413
        builder.build_snapshot('rev-2', None, [('flush', None)])
 
414
        builder.finish_series()
 
415
        rev_tree = builder.get_branch().repository.revision_tree('rev-2')
 
416
        self.assertTreeShape([(u'', 'TREE_ROOT', 'directory')], rev_tree)
 
417
 
 
418
    def test_kind_change(self):
 
419
        """It's possible to change the kind of an entry in a single snapshot
 
420
        with a bit of help from the 'flush' action.
 
421
        """
 
422
        builder = BranchBuilder(self.get_transport().clone('foo'))
 
423
        builder.start_series()
 
424
        builder.build_snapshot('A-id', None,
 
425
            [('add', (u'', 'a-root-id', 'directory', None)),
 
426
             ('add', (u'a', 'a-id', 'file', 'content\n'))])
 
427
        builder.build_snapshot('B-id', None,
 
428
            [('unversion', 'a-id'),
 
429
             ('flush', None),
 
430
             ('add', (u'a', 'a-id', 'directory', None))])
 
431
        builder.finish_series()
 
432
        rev_tree = builder.get_branch().repository.revision_tree('B-id')
 
433
        self.assertTreeShape(
 
434
            [(u'', 'a-root-id', 'directory'), (u'a', 'a-id', 'directory')],
 
435
            rev_tree)
 
436
 
 
437
    def test_pivot_root(self):
 
438
        """It's possible (albeit awkward) to move an existing dir to the root
 
439
        in a single snapshot by using unversion then flush then add.
 
440
        """
 
441
        builder = BranchBuilder(self.get_transport().clone('foo'))
 
442
        builder.start_series()
 
443
        builder.build_snapshot('A-id', None,
 
444
            [('add', (u'', 'orig-root', 'directory', None)),
 
445
             ('add', (u'dir', 'dir-id', 'directory', None))])
 
446
        builder.build_snapshot('B-id', None,
 
447
            [('unversion', 'orig-root'),  # implicitly unversions all children
 
448
             ('flush', None),
 
449
             ('add', (u'', 'dir-id', 'directory', None))])
 
450
        builder.finish_series()
 
451
        rev_tree = builder.get_branch().repository.revision_tree('B-id')
 
452
        self.assertTreeShape([(u'', 'dir-id', 'directory')], rev_tree)
 
453