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Viewing changes to bzrlib/tests/test_repository.py

  • Committer: INADA Naoki
  • Date: 2010-02-22 08:28:41 UTC
  • mto: (4634.141.1 2.0-integration)
  • mto: This revision was merged to the branch mainline in revision 5075.
  • Revision ID: songofacandy@gmail.com-20100222082841-mqbzd2allwtzpgok
Use O_NOINHERIT flag in AtomicFile.

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1
# Copyright (C) 2006-2010 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
"""Tests for the Repository facility that are not interface tests.
 
18
 
 
19
For interface tests see tests/per_repository/*.py.
 
20
 
 
21
For concrete class tests see this file, and for storage formats tests
 
22
also see this file.
 
23
"""
 
24
 
 
25
from stat import S_ISDIR
 
26
from StringIO import StringIO
 
27
 
 
28
import bzrlib
 
29
from bzrlib.errors import (NotBranchError,
 
30
                           NoSuchFile,
 
31
                           UnknownFormatError,
 
32
                           UnsupportedFormatError,
 
33
                           )
 
34
from bzrlib import (
 
35
    graph,
 
36
    tests,
 
37
    )
 
38
from bzrlib.branchbuilder import BranchBuilder
 
39
from bzrlib.btree_index import BTreeBuilder, BTreeGraphIndex
 
40
from bzrlib.index import GraphIndex, InMemoryGraphIndex
 
41
from bzrlib.repository import RepositoryFormat
 
42
from bzrlib.smart import server
 
43
from bzrlib.tests import (
 
44
    TestCase,
 
45
    TestCaseWithTransport,
 
46
    TestSkipped,
 
47
    test_knit,
 
48
    )
 
49
from bzrlib.transport import (
 
50
    fakenfs,
 
51
    get_transport,
 
52
    )
 
53
from bzrlib.transport.memory import MemoryServer
 
54
from bzrlib import (
 
55
    bencode,
 
56
    bzrdir,
 
57
    errors,
 
58
    inventory,
 
59
    osutils,
 
60
    progress,
 
61
    repository,
 
62
    revision as _mod_revision,
 
63
    symbol_versioning,
 
64
    upgrade,
 
65
    versionedfile,
 
66
    workingtree,
 
67
    )
 
68
from bzrlib.repofmt import (
 
69
    groupcompress_repo,
 
70
    knitrepo,
 
71
    pack_repo,
 
72
    weaverepo,
 
73
    )
 
74
 
 
75
 
 
76
class TestDefaultFormat(TestCase):
 
77
 
 
78
    def test_get_set_default_format(self):
 
79
        old_default = bzrdir.format_registry.get('default')
 
80
        private_default = old_default().repository_format.__class__
 
81
        old_format = repository.RepositoryFormat.get_default_format()
 
82
        self.assertTrue(isinstance(old_format, private_default))
 
83
        def make_sample_bzrdir():
 
84
            my_bzrdir = bzrdir.BzrDirMetaFormat1()
 
85
            my_bzrdir.repository_format = SampleRepositoryFormat()
 
86
            return my_bzrdir
 
87
        bzrdir.format_registry.remove('default')
 
88
        bzrdir.format_registry.register('sample', make_sample_bzrdir, '')
 
89
        bzrdir.format_registry.set_default('sample')
 
90
        # creating a repository should now create an instrumented dir.
 
91
        try:
 
92
            # the default branch format is used by the meta dir format
 
93
            # which is not the default bzrdir format at this point
 
94
            dir = bzrdir.BzrDirMetaFormat1().initialize('memory:///')
 
95
            result = dir.create_repository()
 
96
            self.assertEqual(result, 'A bzr repository dir')
 
97
        finally:
 
98
            bzrdir.format_registry.remove('default')
 
99
            bzrdir.format_registry.remove('sample')
 
100
            bzrdir.format_registry.register('default', old_default, '')
 
101
        self.assertIsInstance(repository.RepositoryFormat.get_default_format(),
 
102
                              old_format.__class__)
 
103
 
 
104
 
 
105
class SampleRepositoryFormat(repository.RepositoryFormat):
 
106
    """A sample format
 
107
 
 
108
    this format is initializable, unsupported to aid in testing the
 
109
    open and open(unsupported=True) routines.
 
110
    """
 
111
 
 
112
    def get_format_string(self):
 
113
        """See RepositoryFormat.get_format_string()."""
 
114
        return "Sample .bzr repository format."
 
115
 
 
116
    def initialize(self, a_bzrdir, shared=False):
 
117
        """Initialize a repository in a BzrDir"""
 
118
        t = a_bzrdir.get_repository_transport(self)
 
119
        t.put_bytes('format', self.get_format_string())
 
120
        return 'A bzr repository dir'
 
121
 
 
122
    def is_supported(self):
 
123
        return False
 
124
 
 
125
    def open(self, a_bzrdir, _found=False):
 
126
        return "opened repository."
 
127
 
 
128
 
 
129
class TestRepositoryFormat(TestCaseWithTransport):
 
130
    """Tests for the Repository format detection used by the bzr meta dir facility.BzrBranchFormat facility."""
 
131
 
 
132
    def test_find_format(self):
 
133
        # is the right format object found for a repository?
 
134
        # create a branch with a few known format objects.
 
135
        # this is not quite the same as
 
136
        self.build_tree(["foo/", "bar/"])
 
137
        def check_format(format, url):
 
138
            dir = format._matchingbzrdir.initialize(url)
 
139
            format.initialize(dir)
 
140
            t = get_transport(url)
 
141
            found_format = repository.RepositoryFormat.find_format(dir)
 
142
            self.failUnless(isinstance(found_format, format.__class__))
 
143
        check_format(weaverepo.RepositoryFormat7(), "bar")
 
144
 
 
145
    def test_find_format_no_repository(self):
 
146
        dir = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
147
        self.assertRaises(errors.NoRepositoryPresent,
 
148
                          repository.RepositoryFormat.find_format,
 
149
                          dir)
 
150
 
 
151
    def test_find_format_unknown_format(self):
 
152
        dir = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
153
        SampleRepositoryFormat().initialize(dir)
 
154
        self.assertRaises(UnknownFormatError,
 
155
                          repository.RepositoryFormat.find_format,
 
156
                          dir)
 
157
 
 
158
    def test_register_unregister_format(self):
 
159
        format = SampleRepositoryFormat()
 
160
        # make a control dir
 
161
        dir = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
162
        # make a repo
 
163
        format.initialize(dir)
 
164
        # register a format for it.
 
165
        repository.RepositoryFormat.register_format(format)
 
166
        # which repository.Open will refuse (not supported)
 
167
        self.assertRaises(UnsupportedFormatError, repository.Repository.open, self.get_url())
 
168
        # but open(unsupported) will work
 
169
        self.assertEqual(format.open(dir), "opened repository.")
 
170
        # unregister the format
 
171
        repository.RepositoryFormat.unregister_format(format)
 
172
 
 
173
 
 
174
class TestFormat6(TestCaseWithTransport):
 
175
 
 
176
    def test_attribute__fetch_order(self):
 
177
        """Weaves need topological data insertion."""
 
178
        control = bzrdir.BzrDirFormat6().initialize(self.get_url())
 
179
        repo = weaverepo.RepositoryFormat6().initialize(control)
 
180
        self.assertEqual('topological', repo._format._fetch_order)
 
181
 
 
182
    def test_attribute__fetch_uses_deltas(self):
 
183
        """Weaves do not reuse deltas."""
 
184
        control = bzrdir.BzrDirFormat6().initialize(self.get_url())
 
185
        repo = weaverepo.RepositoryFormat6().initialize(control)
 
186
        self.assertEqual(False, repo._format._fetch_uses_deltas)
 
187
 
 
188
    def test_attribute__fetch_reconcile(self):
 
189
        """Weave repositories need a reconcile after fetch."""
 
190
        control = bzrdir.BzrDirFormat6().initialize(self.get_url())
 
191
        repo = weaverepo.RepositoryFormat6().initialize(control)
 
192
        self.assertEqual(True, repo._format._fetch_reconcile)
 
193
 
 
194
    def test_no_ancestry_weave(self):
 
195
        control = bzrdir.BzrDirFormat6().initialize(self.get_url())
 
196
        repo = weaverepo.RepositoryFormat6().initialize(control)
 
197
        # We no longer need to create the ancestry.weave file
 
198
        # since it is *never* used.
 
199
        self.assertRaises(NoSuchFile,
 
200
                          control.transport.get,
 
201
                          'ancestry.weave')
 
202
 
 
203
    def test_supports_external_lookups(self):
 
204
        control = bzrdir.BzrDirFormat6().initialize(self.get_url())
 
205
        repo = weaverepo.RepositoryFormat6().initialize(control)
 
206
        self.assertFalse(repo._format.supports_external_lookups)
 
207
 
 
208
 
 
209
class TestFormat7(TestCaseWithTransport):
 
210
 
 
211
    def test_attribute__fetch_order(self):
 
212
        """Weaves need topological data insertion."""
 
213
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
214
        repo = weaverepo.RepositoryFormat7().initialize(control)
 
215
        self.assertEqual('topological', repo._format._fetch_order)
 
216
 
 
217
    def test_attribute__fetch_uses_deltas(self):
 
218
        """Weaves do not reuse deltas."""
 
219
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
220
        repo = weaverepo.RepositoryFormat7().initialize(control)
 
221
        self.assertEqual(False, repo._format._fetch_uses_deltas)
 
222
 
 
223
    def test_attribute__fetch_reconcile(self):
 
224
        """Weave repositories need a reconcile after fetch."""
 
225
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
226
        repo = weaverepo.RepositoryFormat7().initialize(control)
 
227
        self.assertEqual(True, repo._format._fetch_reconcile)
 
228
 
 
229
    def test_disk_layout(self):
 
230
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
231
        repo = weaverepo.RepositoryFormat7().initialize(control)
 
232
        # in case of side effects of locking.
 
233
        repo.lock_write()
 
234
        repo.unlock()
 
235
        # we want:
 
236
        # format 'Bazaar-NG Repository format 7'
 
237
        # lock ''
 
238
        # inventory.weave == empty_weave
 
239
        # empty revision-store directory
 
240
        # empty weaves directory
 
241
        t = control.get_repository_transport(None)
 
242
        self.assertEqualDiff('Bazaar-NG Repository format 7',
 
243
                             t.get('format').read())
 
244
        self.assertTrue(S_ISDIR(t.stat('revision-store').st_mode))
 
245
        self.assertTrue(S_ISDIR(t.stat('weaves').st_mode))
 
246
        self.assertEqualDiff('# bzr weave file v5\n'
 
247
                             'w\n'
 
248
                             'W\n',
 
249
                             t.get('inventory.weave').read())
 
250
        # Creating a file with id Foo:Bar results in a non-escaped file name on
 
251
        # disk.
 
252
        control.create_branch()
 
253
        tree = control.create_workingtree()
 
254
        tree.add(['foo'], ['Foo:Bar'], ['file'])
 
255
        tree.put_file_bytes_non_atomic('Foo:Bar', 'content\n')
 
256
        tree.commit('first post', rev_id='first')
 
257
        self.assertEqualDiff(
 
258
            '# bzr weave file v5\n'
 
259
            'i\n'
 
260
            '1 7fe70820e08a1aac0ef224d9c66ab66831cc4ab1\n'
 
261
            'n first\n'
 
262
            '\n'
 
263
            'w\n'
 
264
            '{ 0\n'
 
265
            '. content\n'
 
266
            '}\n'
 
267
            'W\n',
 
268
            t.get('weaves/74/Foo%3ABar.weave').read())
 
269
 
 
270
    def test_shared_disk_layout(self):
 
271
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
272
        repo = weaverepo.RepositoryFormat7().initialize(control, shared=True)
 
273
        # we want:
 
274
        # format 'Bazaar-NG Repository format 7'
 
275
        # inventory.weave == empty_weave
 
276
        # empty revision-store directory
 
277
        # empty weaves directory
 
278
        # a 'shared-storage' marker file.
 
279
        # lock is not present when unlocked
 
280
        t = control.get_repository_transport(None)
 
281
        self.assertEqualDiff('Bazaar-NG Repository format 7',
 
282
                             t.get('format').read())
 
283
        self.assertEqualDiff('', t.get('shared-storage').read())
 
284
        self.assertTrue(S_ISDIR(t.stat('revision-store').st_mode))
 
285
        self.assertTrue(S_ISDIR(t.stat('weaves').st_mode))
 
286
        self.assertEqualDiff('# bzr weave file v5\n'
 
287
                             'w\n'
 
288
                             'W\n',
 
289
                             t.get('inventory.weave').read())
 
290
        self.assertFalse(t.has('branch-lock'))
 
291
 
 
292
    def test_creates_lockdir(self):
 
293
        """Make sure it appears to be controlled by a LockDir existence"""
 
294
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
295
        repo = weaverepo.RepositoryFormat7().initialize(control, shared=True)
 
296
        t = control.get_repository_transport(None)
 
297
        # TODO: Should check there is a 'lock' toplevel directory,
 
298
        # regardless of contents
 
299
        self.assertFalse(t.has('lock/held/info'))
 
300
        repo.lock_write()
 
301
        try:
 
302
            self.assertTrue(t.has('lock/held/info'))
 
303
        finally:
 
304
            # unlock so we don't get a warning about failing to do so
 
305
            repo.unlock()
 
306
 
 
307
    def test_uses_lockdir(self):
 
308
        """repo format 7 actually locks on lockdir"""
 
309
        base_url = self.get_url()
 
310
        control = bzrdir.BzrDirMetaFormat1().initialize(base_url)
 
311
        repo = weaverepo.RepositoryFormat7().initialize(control, shared=True)
 
312
        t = control.get_repository_transport(None)
 
313
        repo.lock_write()
 
314
        repo.unlock()
 
315
        del repo
 
316
        # make sure the same lock is created by opening it
 
317
        repo = repository.Repository.open(base_url)
 
318
        repo.lock_write()
 
319
        self.assertTrue(t.has('lock/held/info'))
 
320
        repo.unlock()
 
321
        self.assertFalse(t.has('lock/held/info'))
 
322
 
 
323
    def test_shared_no_tree_disk_layout(self):
 
324
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
325
        repo = weaverepo.RepositoryFormat7().initialize(control, shared=True)
 
326
        repo.set_make_working_trees(False)
 
327
        # we want:
 
328
        # format 'Bazaar-NG Repository format 7'
 
329
        # lock ''
 
330
        # inventory.weave == empty_weave
 
331
        # empty revision-store directory
 
332
        # empty weaves directory
 
333
        # a 'shared-storage' marker file.
 
334
        t = control.get_repository_transport(None)
 
335
        self.assertEqualDiff('Bazaar-NG Repository format 7',
 
336
                             t.get('format').read())
 
337
        ## self.assertEqualDiff('', t.get('lock').read())
 
338
        self.assertEqualDiff('', t.get('shared-storage').read())
 
339
        self.assertEqualDiff('', t.get('no-working-trees').read())
 
340
        repo.set_make_working_trees(True)
 
341
        self.assertFalse(t.has('no-working-trees'))
 
342
        self.assertTrue(S_ISDIR(t.stat('revision-store').st_mode))
 
343
        self.assertTrue(S_ISDIR(t.stat('weaves').st_mode))
 
344
        self.assertEqualDiff('# bzr weave file v5\n'
 
345
                             'w\n'
 
346
                             'W\n',
 
347
                             t.get('inventory.weave').read())
 
348
 
 
349
    def test_supports_external_lookups(self):
 
350
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
351
        repo = weaverepo.RepositoryFormat7().initialize(control)
 
352
        self.assertFalse(repo._format.supports_external_lookups)
 
353
 
 
354
 
 
355
class TestFormatKnit1(TestCaseWithTransport):
 
356
 
 
357
    def test_attribute__fetch_order(self):
 
358
        """Knits need topological data insertion."""
 
359
        repo = self.make_repository('.',
 
360
                format=bzrdir.format_registry.get('knit')())
 
361
        self.assertEqual('topological', repo._format._fetch_order)
 
362
 
 
363
    def test_attribute__fetch_uses_deltas(self):
 
364
        """Knits reuse deltas."""
 
365
        repo = self.make_repository('.',
 
366
                format=bzrdir.format_registry.get('knit')())
 
367
        self.assertEqual(True, repo._format._fetch_uses_deltas)
 
368
 
 
369
    def test_disk_layout(self):
 
370
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
371
        repo = knitrepo.RepositoryFormatKnit1().initialize(control)
 
372
        # in case of side effects of locking.
 
373
        repo.lock_write()
 
374
        repo.unlock()
 
375
        # we want:
 
376
        # format 'Bazaar-NG Knit Repository Format 1'
 
377
        # lock: is a directory
 
378
        # inventory.weave == empty_weave
 
379
        # empty revision-store directory
 
380
        # empty weaves directory
 
381
        t = control.get_repository_transport(None)
 
382
        self.assertEqualDiff('Bazaar-NG Knit Repository Format 1',
 
383
                             t.get('format').read())
 
384
        # XXX: no locks left when unlocked at the moment
 
385
        # self.assertEqualDiff('', t.get('lock').read())
 
386
        self.assertTrue(S_ISDIR(t.stat('knits').st_mode))
 
387
        self.check_knits(t)
 
388
        # Check per-file knits.
 
389
        branch = control.create_branch()
 
390
        tree = control.create_workingtree()
 
391
        tree.add(['foo'], ['Nasty-IdC:'], ['file'])
 
392
        tree.put_file_bytes_non_atomic('Nasty-IdC:', '')
 
393
        tree.commit('1st post', rev_id='foo')
 
394
        self.assertHasKnit(t, 'knits/e8/%254easty-%2549d%2543%253a',
 
395
            '\nfoo fulltext 0 81  :')
 
396
 
 
397
    def assertHasKnit(self, t, knit_name, extra_content=''):
 
398
        """Assert that knit_name exists on t."""
 
399
        self.assertEqualDiff('# bzr knit index 8\n' + extra_content,
 
400
                             t.get(knit_name + '.kndx').read())
 
401
 
 
402
    def check_knits(self, t):
 
403
        """check knit content for a repository."""
 
404
        self.assertHasKnit(t, 'inventory')
 
405
        self.assertHasKnit(t, 'revisions')
 
406
        self.assertHasKnit(t, 'signatures')
 
407
 
 
408
    def test_shared_disk_layout(self):
 
409
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
410
        repo = knitrepo.RepositoryFormatKnit1().initialize(control, shared=True)
 
411
        # we want:
 
412
        # format 'Bazaar-NG Knit Repository Format 1'
 
413
        # lock: is a directory
 
414
        # inventory.weave == empty_weave
 
415
        # empty revision-store directory
 
416
        # empty weaves directory
 
417
        # a 'shared-storage' marker file.
 
418
        t = control.get_repository_transport(None)
 
419
        self.assertEqualDiff('Bazaar-NG Knit Repository Format 1',
 
420
                             t.get('format').read())
 
421
        # XXX: no locks left when unlocked at the moment
 
422
        # self.assertEqualDiff('', t.get('lock').read())
 
423
        self.assertEqualDiff('', t.get('shared-storage').read())
 
424
        self.assertTrue(S_ISDIR(t.stat('knits').st_mode))
 
425
        self.check_knits(t)
 
426
 
 
427
    def test_shared_no_tree_disk_layout(self):
 
428
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
429
        repo = knitrepo.RepositoryFormatKnit1().initialize(control, shared=True)
 
430
        repo.set_make_working_trees(False)
 
431
        # we want:
 
432
        # format 'Bazaar-NG Knit Repository Format 1'
 
433
        # lock ''
 
434
        # inventory.weave == empty_weave
 
435
        # empty revision-store directory
 
436
        # empty weaves directory
 
437
        # a 'shared-storage' marker file.
 
438
        t = control.get_repository_transport(None)
 
439
        self.assertEqualDiff('Bazaar-NG Knit Repository Format 1',
 
440
                             t.get('format').read())
 
441
        # XXX: no locks left when unlocked at the moment
 
442
        # self.assertEqualDiff('', t.get('lock').read())
 
443
        self.assertEqualDiff('', t.get('shared-storage').read())
 
444
        self.assertEqualDiff('', t.get('no-working-trees').read())
 
445
        repo.set_make_working_trees(True)
 
446
        self.assertFalse(t.has('no-working-trees'))
 
447
        self.assertTrue(S_ISDIR(t.stat('knits').st_mode))
 
448
        self.check_knits(t)
 
449
 
 
450
    def test_deserialise_sets_root_revision(self):
 
451
        """We must have a inventory.root.revision
 
452
 
 
453
        Old versions of the XML5 serializer did not set the revision_id for
 
454
        the whole inventory. So we grab the one from the expected text. Which
 
455
        is valid when the api is not being abused.
 
456
        """
 
457
        repo = self.make_repository('.',
 
458
                format=bzrdir.format_registry.get('knit')())
 
459
        inv_xml = '<inventory format="5">\n</inventory>\n'
 
460
        inv = repo.deserialise_inventory('test-rev-id', inv_xml)
 
461
        self.assertEqual('test-rev-id', inv.root.revision)
 
462
 
 
463
    def test_deserialise_uses_global_revision_id(self):
 
464
        """If it is set, then we re-use the global revision id"""
 
465
        repo = self.make_repository('.',
 
466
                format=bzrdir.format_registry.get('knit')())
 
467
        inv_xml = ('<inventory format="5" revision_id="other-rev-id">\n'
 
468
                   '</inventory>\n')
 
469
        # Arguably, the deserialise_inventory should detect a mismatch, and
 
470
        # raise an error, rather than silently using one revision_id over the
 
471
        # other.
 
472
        self.assertRaises(AssertionError, repo.deserialise_inventory,
 
473
            'test-rev-id', inv_xml)
 
474
        inv = repo.deserialise_inventory('other-rev-id', inv_xml)
 
475
        self.assertEqual('other-rev-id', inv.root.revision)
 
476
 
 
477
    def test_supports_external_lookups(self):
 
478
        repo = self.make_repository('.',
 
479
                format=bzrdir.format_registry.get('knit')())
 
480
        self.assertFalse(repo._format.supports_external_lookups)
 
481
 
 
482
 
 
483
class DummyRepository(object):
 
484
    """A dummy repository for testing."""
 
485
 
 
486
    _format = None
 
487
    _serializer = None
 
488
 
 
489
    def supports_rich_root(self):
 
490
        if self._format is not None:
 
491
            return self._format.rich_root_data
 
492
        return False
 
493
 
 
494
    def get_graph(self):
 
495
        raise NotImplementedError
 
496
 
 
497
    def get_parent_map(self, revision_ids):
 
498
        raise NotImplementedError
 
499
 
 
500
 
 
501
class InterDummy(repository.InterRepository):
 
502
    """An inter-repository optimised code path for DummyRepository.
 
503
 
 
504
    This is for use during testing where we use DummyRepository as repositories
 
505
    so that none of the default regsitered inter-repository classes will
 
506
    MATCH.
 
507
    """
 
508
 
 
509
    @staticmethod
 
510
    def is_compatible(repo_source, repo_target):
 
511
        """InterDummy is compatible with DummyRepository."""
 
512
        return (isinstance(repo_source, DummyRepository) and
 
513
            isinstance(repo_target, DummyRepository))
 
514
 
 
515
 
 
516
class TestInterRepository(TestCaseWithTransport):
 
517
 
 
518
    def test_get_default_inter_repository(self):
 
519
        # test that the InterRepository.get(repo_a, repo_b) probes
 
520
        # for a inter_repo class where is_compatible(repo_a, repo_b) returns
 
521
        # true and returns a default inter_repo otherwise.
 
522
        # This also tests that the default registered optimised interrepository
 
523
        # classes do not barf inappropriately when a surprising repository type
 
524
        # is handed to them.
 
525
        dummy_a = DummyRepository()
 
526
        dummy_b = DummyRepository()
 
527
        self.assertGetsDefaultInterRepository(dummy_a, dummy_b)
 
528
 
 
529
    def assertGetsDefaultInterRepository(self, repo_a, repo_b):
 
530
        """Asserts that InterRepository.get(repo_a, repo_b) -> the default.
 
531
 
 
532
        The effective default is now InterSameDataRepository because there is
 
533
        no actual sane default in the presence of incompatible data models.
 
534
        """
 
535
        inter_repo = repository.InterRepository.get(repo_a, repo_b)
 
536
        self.assertEqual(repository.InterSameDataRepository,
 
537
                         inter_repo.__class__)
 
538
        self.assertEqual(repo_a, inter_repo.source)
 
539
        self.assertEqual(repo_b, inter_repo.target)
 
540
 
 
541
    def test_register_inter_repository_class(self):
 
542
        # test that a optimised code path provider - a
 
543
        # InterRepository subclass can be registered and unregistered
 
544
        # and that it is correctly selected when given a repository
 
545
        # pair that it returns true on for the is_compatible static method
 
546
        # check
 
547
        dummy_a = DummyRepository()
 
548
        dummy_a._format = RepositoryFormat()
 
549
        dummy_b = DummyRepository()
 
550
        dummy_b._format = RepositoryFormat()
 
551
        repo = self.make_repository('.')
 
552
        # hack dummies to look like repo somewhat.
 
553
        dummy_a._serializer = repo._serializer
 
554
        dummy_a._format.supports_tree_reference = repo._format.supports_tree_reference
 
555
        dummy_a._format.rich_root_data = repo._format.rich_root_data
 
556
        dummy_b._serializer = repo._serializer
 
557
        dummy_b._format.supports_tree_reference = repo._format.supports_tree_reference
 
558
        dummy_b._format.rich_root_data = repo._format.rich_root_data
 
559
        repository.InterRepository.register_optimiser(InterDummy)
 
560
        try:
 
561
            # we should get the default for something InterDummy returns False
 
562
            # to
 
563
            self.assertFalse(InterDummy.is_compatible(dummy_a, repo))
 
564
            self.assertGetsDefaultInterRepository(dummy_a, repo)
 
565
            # and we should get an InterDummy for a pair it 'likes'
 
566
            self.assertTrue(InterDummy.is_compatible(dummy_a, dummy_b))
 
567
            inter_repo = repository.InterRepository.get(dummy_a, dummy_b)
 
568
            self.assertEqual(InterDummy, inter_repo.__class__)
 
569
            self.assertEqual(dummy_a, inter_repo.source)
 
570
            self.assertEqual(dummy_b, inter_repo.target)
 
571
        finally:
 
572
            repository.InterRepository.unregister_optimiser(InterDummy)
 
573
        # now we should get the default InterRepository object again.
 
574
        self.assertGetsDefaultInterRepository(dummy_a, dummy_b)
 
575
 
 
576
 
 
577
class TestInterWeaveRepo(TestCaseWithTransport):
 
578
 
 
579
    def test_is_compatible_and_registered(self):
 
580
        # InterWeaveRepo is compatible when either side
 
581
        # is a format 5/6/7 branch
 
582
        from bzrlib.repofmt import knitrepo, weaverepo
 
583
        formats = [weaverepo.RepositoryFormat5(),
 
584
                   weaverepo.RepositoryFormat6(),
 
585
                   weaverepo.RepositoryFormat7()]
 
586
        incompatible_formats = [weaverepo.RepositoryFormat4(),
 
587
                                knitrepo.RepositoryFormatKnit1(),
 
588
                                ]
 
589
        repo_a = self.make_repository('a')
 
590
        repo_b = self.make_repository('b')
 
591
        is_compatible = repository.InterWeaveRepo.is_compatible
 
592
        for source in incompatible_formats:
 
593
            # force incompatible left then right
 
594
            repo_a._format = source
 
595
            repo_b._format = formats[0]
 
596
            self.assertFalse(is_compatible(repo_a, repo_b))
 
597
            self.assertFalse(is_compatible(repo_b, repo_a))
 
598
        for source in formats:
 
599
            repo_a._format = source
 
600
            for target in formats:
 
601
                repo_b._format = target
 
602
                self.assertTrue(is_compatible(repo_a, repo_b))
 
603
        self.assertEqual(repository.InterWeaveRepo,
 
604
                         repository.InterRepository.get(repo_a,
 
605
                                                        repo_b).__class__)
 
606
 
 
607
 
 
608
class TestRepositoryConverter(TestCaseWithTransport):
 
609
 
 
610
    def test_convert_empty(self):
 
611
        t = get_transport(self.get_url('.'))
 
612
        t.mkdir('repository')
 
613
        repo_dir = bzrdir.BzrDirMetaFormat1().initialize('repository')
 
614
        repo = weaverepo.RepositoryFormat7().initialize(repo_dir)
 
615
        target_format = knitrepo.RepositoryFormatKnit1()
 
616
        converter = repository.CopyConverter(target_format)
 
617
        pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
618
        try:
 
619
            converter.convert(repo, pb)
 
620
        finally:
 
621
            pb.finished()
 
622
        repo = repo_dir.open_repository()
 
623
        self.assertTrue(isinstance(target_format, repo._format.__class__))
 
624
 
 
625
 
 
626
class TestMisc(TestCase):
 
627
 
 
628
    def test_unescape_xml(self):
 
629
        """We get some kind of error when malformed entities are passed"""
 
630
        self.assertRaises(KeyError, repository._unescape_xml, 'foo&bar;')
 
631
 
 
632
 
 
633
class TestRepositoryFormatKnit3(TestCaseWithTransport):
 
634
 
 
635
    def test_attribute__fetch_order(self):
 
636
        """Knits need topological data insertion."""
 
637
        format = bzrdir.BzrDirMetaFormat1()
 
638
        format.repository_format = knitrepo.RepositoryFormatKnit3()
 
639
        repo = self.make_repository('.', format=format)
 
640
        self.assertEqual('topological', repo._format._fetch_order)
 
641
 
 
642
    def test_attribute__fetch_uses_deltas(self):
 
643
        """Knits reuse deltas."""
 
644
        format = bzrdir.BzrDirMetaFormat1()
 
645
        format.repository_format = knitrepo.RepositoryFormatKnit3()
 
646
        repo = self.make_repository('.', format=format)
 
647
        self.assertEqual(True, repo._format._fetch_uses_deltas)
 
648
 
 
649
    def test_convert(self):
 
650
        """Ensure the upgrade adds weaves for roots"""
 
651
        format = bzrdir.BzrDirMetaFormat1()
 
652
        format.repository_format = knitrepo.RepositoryFormatKnit1()
 
653
        tree = self.make_branch_and_tree('.', format)
 
654
        tree.commit("Dull commit", rev_id="dull")
 
655
        revision_tree = tree.branch.repository.revision_tree('dull')
 
656
        revision_tree.lock_read()
 
657
        try:
 
658
            self.assertRaises(errors.NoSuchFile, revision_tree.get_file_lines,
 
659
                revision_tree.inventory.root.file_id)
 
660
        finally:
 
661
            revision_tree.unlock()
 
662
        format = bzrdir.BzrDirMetaFormat1()
 
663
        format.repository_format = knitrepo.RepositoryFormatKnit3()
 
664
        upgrade.Convert('.', format)
 
665
        tree = workingtree.WorkingTree.open('.')
 
666
        revision_tree = tree.branch.repository.revision_tree('dull')
 
667
        revision_tree.lock_read()
 
668
        try:
 
669
            revision_tree.get_file_lines(revision_tree.inventory.root.file_id)
 
670
        finally:
 
671
            revision_tree.unlock()
 
672
        tree.commit("Another dull commit", rev_id='dull2')
 
673
        revision_tree = tree.branch.repository.revision_tree('dull2')
 
674
        revision_tree.lock_read()
 
675
        self.addCleanup(revision_tree.unlock)
 
676
        self.assertEqual('dull', revision_tree.inventory.root.revision)
 
677
 
 
678
    def test_supports_external_lookups(self):
 
679
        format = bzrdir.BzrDirMetaFormat1()
 
680
        format.repository_format = knitrepo.RepositoryFormatKnit3()
 
681
        repo = self.make_repository('.', format=format)
 
682
        self.assertFalse(repo._format.supports_external_lookups)
 
683
 
 
684
 
 
685
class Test2a(TestCaseWithTransport):
 
686
 
 
687
    def test_fetch_combines_groups(self):
 
688
        builder = self.make_branch_builder('source', format='2a')
 
689
        builder.start_series()
 
690
        builder.build_snapshot('1', None, [
 
691
            ('add', ('', 'root-id', 'directory', '')),
 
692
            ('add', ('file', 'file-id', 'file', 'content\n'))])
 
693
        builder.build_snapshot('2', ['1'], [
 
694
            ('modify', ('file-id', 'content-2\n'))])
 
695
        builder.finish_series()
 
696
        source = builder.get_branch()
 
697
        target = self.make_repository('target', format='2a')
 
698
        target.fetch(source.repository)
 
699
        target.lock_read()
 
700
        self.addCleanup(target.unlock)
 
701
        details = target.texts._index.get_build_details(
 
702
            [('file-id', '1',), ('file-id', '2',)])
 
703
        file_1_details = details[('file-id', '1')]
 
704
        file_2_details = details[('file-id', '2')]
 
705
        # The index, and what to read off disk, should be the same for both
 
706
        # versions of the file.
 
707
        self.assertEqual(file_1_details[0][:3], file_2_details[0][:3])
 
708
 
 
709
    def test_format_pack_compresses_True(self):
 
710
        repo = self.make_repository('repo', format='2a')
 
711
        self.assertTrue(repo._format.pack_compresses)
 
712
 
 
713
    def test_inventories_use_chk_map_with_parent_base_dict(self):
 
714
        tree = self.make_branch_and_tree('repo', format="2a")
 
715
        revid = tree.commit("foo")
 
716
        tree.lock_read()
 
717
        self.addCleanup(tree.unlock)
 
718
        inv = tree.branch.repository.get_inventory(revid)
 
719
        self.assertNotEqual(None, inv.parent_id_basename_to_file_id)
 
720
        inv.parent_id_basename_to_file_id._ensure_root()
 
721
        inv.id_to_entry._ensure_root()
 
722
        self.assertEqual(65536, inv.id_to_entry._root_node.maximum_size)
 
723
        self.assertEqual(65536,
 
724
            inv.parent_id_basename_to_file_id._root_node.maximum_size)
 
725
 
 
726
    def test_autopack_unchanged_chk_nodes(self):
 
727
        # at 20 unchanged commits, chk pages are packed that are split into
 
728
        # two groups such that the new pack being made doesn't have all its
 
729
        # pages in the source packs (though they are in the repository).
 
730
        tree = self.make_branch_and_tree('tree', format='2a')
 
731
        for pos in range(20):
 
732
            tree.commit(str(pos))
 
733
 
 
734
    def test_pack_with_hint(self):
 
735
        tree = self.make_branch_and_tree('tree', format='2a')
 
736
        # 1 commit to leave untouched
 
737
        tree.commit('1')
 
738
        to_keep = tree.branch.repository._pack_collection.names()
 
739
        # 2 to combine
 
740
        tree.commit('2')
 
741
        tree.commit('3')
 
742
        all = tree.branch.repository._pack_collection.names()
 
743
        combine = list(set(all) - set(to_keep))
 
744
        self.assertLength(3, all)
 
745
        self.assertLength(2, combine)
 
746
        tree.branch.repository.pack(hint=combine)
 
747
        final = tree.branch.repository._pack_collection.names()
 
748
        self.assertLength(2, final)
 
749
        self.assertFalse(combine[0] in final)
 
750
        self.assertFalse(combine[1] in final)
 
751
        self.assertSubset(to_keep, final)
 
752
 
 
753
    def test_stream_source_to_gc(self):
 
754
        source = self.make_repository('source', format='2a')
 
755
        target = self.make_repository('target', format='2a')
 
756
        stream = source._get_source(target._format)
 
757
        self.assertIsInstance(stream, groupcompress_repo.GroupCHKStreamSource)
 
758
 
 
759
    def test_stream_source_to_non_gc(self):
 
760
        source = self.make_repository('source', format='2a')
 
761
        target = self.make_repository('target', format='rich-root-pack')
 
762
        stream = source._get_source(target._format)
 
763
        # We don't want the child GroupCHKStreamSource
 
764
        self.assertIs(type(stream), repository.StreamSource)
 
765
 
 
766
    def test_get_stream_for_missing_keys_includes_all_chk_refs(self):
 
767
        source_builder = self.make_branch_builder('source',
 
768
                            format='2a')
 
769
        # We have to build a fairly large tree, so that we are sure the chk
 
770
        # pages will have split into multiple pages.
 
771
        entries = [('add', ('', 'a-root-id', 'directory', None))]
 
772
        for i in 'abcdefghijklmnopqrstuvwxyz123456789':
 
773
            for j in 'abcdefghijklmnopqrstuvwxyz123456789':
 
774
                fname = i + j
 
775
                fid = fname + '-id'
 
776
                content = 'content for %s\n' % (fname,)
 
777
                entries.append(('add', (fname, fid, 'file', content)))
 
778
        source_builder.start_series()
 
779
        source_builder.build_snapshot('rev-1', None, entries)
 
780
        # Now change a few of them, so we get a few new pages for the second
 
781
        # revision
 
782
        source_builder.build_snapshot('rev-2', ['rev-1'], [
 
783
            ('modify', ('aa-id', 'new content for aa-id\n')),
 
784
            ('modify', ('cc-id', 'new content for cc-id\n')),
 
785
            ('modify', ('zz-id', 'new content for zz-id\n')),
 
786
            ])
 
787
        source_builder.finish_series()
 
788
        source_branch = source_builder.get_branch()
 
789
        source_branch.lock_read()
 
790
        self.addCleanup(source_branch.unlock)
 
791
        target = self.make_repository('target', format='2a')
 
792
        source = source_branch.repository._get_source(target._format)
 
793
        self.assertIsInstance(source, groupcompress_repo.GroupCHKStreamSource)
 
794
 
 
795
        # On a regular pass, getting the inventories and chk pages for rev-2
 
796
        # would only get the newly created chk pages
 
797
        search = graph.SearchResult(set(['rev-2']), set(['rev-1']), 1,
 
798
                                    set(['rev-2']))
 
799
        simple_chk_records = []
 
800
        for vf_name, substream in source.get_stream(search):
 
801
            if vf_name == 'chk_bytes':
 
802
                for record in substream:
 
803
                    simple_chk_records.append(record.key)
 
804
            else:
 
805
                for _ in substream:
 
806
                    continue
 
807
        # 3 pages, the root (InternalNode), + 2 pages which actually changed
 
808
        self.assertEqual([('sha1:91481f539e802c76542ea5e4c83ad416bf219f73',),
 
809
                          ('sha1:4ff91971043668583985aec83f4f0ab10a907d3f',),
 
810
                          ('sha1:81e7324507c5ca132eedaf2d8414ee4bb2226187',),
 
811
                          ('sha1:b101b7da280596c71a4540e9a1eeba8045985ee0',)],
 
812
                         simple_chk_records)
 
813
        # Now, when we do a similar call using 'get_stream_for_missing_keys'
 
814
        # we should get a much larger set of pages.
 
815
        missing = [('inventories', 'rev-2')]
 
816
        full_chk_records = []
 
817
        for vf_name, substream in source.get_stream_for_missing_keys(missing):
 
818
            if vf_name == 'inventories':
 
819
                for record in substream:
 
820
                    self.assertEqual(('rev-2',), record.key)
 
821
            elif vf_name == 'chk_bytes':
 
822
                for record in substream:
 
823
                    full_chk_records.append(record.key)
 
824
            else:
 
825
                self.fail('Should not be getting a stream of %s' % (vf_name,))
 
826
        # We have 257 records now. This is because we have 1 root page, and 256
 
827
        # leaf pages in a complete listing.
 
828
        self.assertEqual(257, len(full_chk_records))
 
829
        self.assertSubset(simple_chk_records, full_chk_records)
 
830
 
 
831
    def test_inconsistency_fatal(self):
 
832
        repo = self.make_repository('repo', format='2a')
 
833
        self.assertTrue(repo.revisions._index._inconsistency_fatal)
 
834
        self.assertFalse(repo.texts._index._inconsistency_fatal)
 
835
        self.assertFalse(repo.inventories._index._inconsistency_fatal)
 
836
        self.assertFalse(repo.signatures._index._inconsistency_fatal)
 
837
        self.assertFalse(repo.chk_bytes._index._inconsistency_fatal)
 
838
 
 
839
 
 
840
class TestKnitPackStreamSource(tests.TestCaseWithMemoryTransport):
 
841
 
 
842
    def test_source_to_exact_pack_092(self):
 
843
        source = self.make_repository('source', format='pack-0.92')
 
844
        target = self.make_repository('target', format='pack-0.92')
 
845
        stream_source = source._get_source(target._format)
 
846
        self.assertIsInstance(stream_source, pack_repo.KnitPackStreamSource)
 
847
 
 
848
    def test_source_to_exact_pack_rich_root_pack(self):
 
849
        source = self.make_repository('source', format='rich-root-pack')
 
850
        target = self.make_repository('target', format='rich-root-pack')
 
851
        stream_source = source._get_source(target._format)
 
852
        self.assertIsInstance(stream_source, pack_repo.KnitPackStreamSource)
 
853
 
 
854
    def test_source_to_exact_pack_19(self):
 
855
        source = self.make_repository('source', format='1.9')
 
856
        target = self.make_repository('target', format='1.9')
 
857
        stream_source = source._get_source(target._format)
 
858
        self.assertIsInstance(stream_source, pack_repo.KnitPackStreamSource)
 
859
 
 
860
    def test_source_to_exact_pack_19_rich_root(self):
 
861
        source = self.make_repository('source', format='1.9-rich-root')
 
862
        target = self.make_repository('target', format='1.9-rich-root')
 
863
        stream_source = source._get_source(target._format)
 
864
        self.assertIsInstance(stream_source, pack_repo.KnitPackStreamSource)
 
865
 
 
866
    def test_source_to_remote_exact_pack_19(self):
 
867
        trans = self.make_smart_server('target')
 
868
        trans.ensure_base()
 
869
        source = self.make_repository('source', format='1.9')
 
870
        target = self.make_repository('target', format='1.9')
 
871
        target = repository.Repository.open(trans.base)
 
872
        stream_source = source._get_source(target._format)
 
873
        self.assertIsInstance(stream_source, pack_repo.KnitPackStreamSource)
 
874
 
 
875
    def test_stream_source_to_non_exact(self):
 
876
        source = self.make_repository('source', format='pack-0.92')
 
877
        target = self.make_repository('target', format='1.9')
 
878
        stream = source._get_source(target._format)
 
879
        self.assertIs(type(stream), repository.StreamSource)
 
880
 
 
881
    def test_stream_source_to_non_exact_rich_root(self):
 
882
        source = self.make_repository('source', format='1.9')
 
883
        target = self.make_repository('target', format='1.9-rich-root')
 
884
        stream = source._get_source(target._format)
 
885
        self.assertIs(type(stream), repository.StreamSource)
 
886
 
 
887
    def test_source_to_remote_non_exact_pack_19(self):
 
888
        trans = self.make_smart_server('target')
 
889
        trans.ensure_base()
 
890
        source = self.make_repository('source', format='1.9')
 
891
        target = self.make_repository('target', format='1.6')
 
892
        target = repository.Repository.open(trans.base)
 
893
        stream_source = source._get_source(target._format)
 
894
        self.assertIs(type(stream_source), repository.StreamSource)
 
895
 
 
896
    def test_stream_source_to_knit(self):
 
897
        source = self.make_repository('source', format='pack-0.92')
 
898
        target = self.make_repository('target', format='dirstate')
 
899
        stream = source._get_source(target._format)
 
900
        self.assertIs(type(stream), repository.StreamSource)
 
901
 
 
902
 
 
903
class TestDevelopment6FindParentIdsOfRevisions(TestCaseWithTransport):
 
904
    """Tests for _find_parent_ids_of_revisions."""
 
905
 
 
906
    def setUp(self):
 
907
        super(TestDevelopment6FindParentIdsOfRevisions, self).setUp()
 
908
        self.builder = self.make_branch_builder('source',
 
909
            format='development6-rich-root')
 
910
        self.builder.start_series()
 
911
        self.builder.build_snapshot('initial', None,
 
912
            [('add', ('', 'tree-root', 'directory', None))])
 
913
        self.repo = self.builder.get_branch().repository
 
914
        self.addCleanup(self.builder.finish_series)
 
915
 
 
916
    def assertParentIds(self, expected_result, rev_set):
 
917
        self.assertEqual(sorted(expected_result),
 
918
            sorted(self.repo._find_parent_ids_of_revisions(rev_set)))
 
919
 
 
920
    def test_simple(self):
 
921
        self.builder.build_snapshot('revid1', None, [])
 
922
        self.builder.build_snapshot('revid2', ['revid1'], [])
 
923
        rev_set = ['revid2']
 
924
        self.assertParentIds(['revid1'], rev_set)
 
925
 
 
926
    def test_not_first_parent(self):
 
927
        self.builder.build_snapshot('revid1', None, [])
 
928
        self.builder.build_snapshot('revid2', ['revid1'], [])
 
929
        self.builder.build_snapshot('revid3', ['revid2'], [])
 
930
        rev_set = ['revid3', 'revid2']
 
931
        self.assertParentIds(['revid1'], rev_set)
 
932
 
 
933
    def test_not_null(self):
 
934
        rev_set = ['initial']
 
935
        self.assertParentIds([], rev_set)
 
936
 
 
937
    def test_not_null_set(self):
 
938
        self.builder.build_snapshot('revid1', None, [])
 
939
        rev_set = [_mod_revision.NULL_REVISION]
 
940
        self.assertParentIds([], rev_set)
 
941
 
 
942
    def test_ghost(self):
 
943
        self.builder.build_snapshot('revid1', None, [])
 
944
        rev_set = ['ghost', 'revid1']
 
945
        self.assertParentIds(['initial'], rev_set)
 
946
 
 
947
    def test_ghost_parent(self):
 
948
        self.builder.build_snapshot('revid1', None, [])
 
949
        self.builder.build_snapshot('revid2', ['revid1', 'ghost'], [])
 
950
        rev_set = ['revid2', 'revid1']
 
951
        self.assertParentIds(['ghost', 'initial'], rev_set)
 
952
 
 
953
    def test_righthand_parent(self):
 
954
        self.builder.build_snapshot('revid1', None, [])
 
955
        self.builder.build_snapshot('revid2a', ['revid1'], [])
 
956
        self.builder.build_snapshot('revid2b', ['revid1'], [])
 
957
        self.builder.build_snapshot('revid3', ['revid2a', 'revid2b'], [])
 
958
        rev_set = ['revid3', 'revid2a']
 
959
        self.assertParentIds(['revid1', 'revid2b'], rev_set)
 
960
 
 
961
 
 
962
class TestWithBrokenRepo(TestCaseWithTransport):
 
963
    """These tests seem to be more appropriate as interface tests?"""
 
964
 
 
965
    def make_broken_repository(self):
 
966
        # XXX: This function is borrowed from Aaron's "Reconcile can fix bad
 
967
        # parent references" branch which is due to land in bzr.dev soon.  Once
 
968
        # it does, this duplication should be removed.
 
969
        repo = self.make_repository('broken-repo')
 
970
        cleanups = []
 
971
        try:
 
972
            repo.lock_write()
 
973
            cleanups.append(repo.unlock)
 
974
            repo.start_write_group()
 
975
            cleanups.append(repo.commit_write_group)
 
976
            # make rev1a: A well-formed revision, containing 'file1'
 
977
            inv = inventory.Inventory(revision_id='rev1a')
 
978
            inv.root.revision = 'rev1a'
 
979
            self.add_file(repo, inv, 'file1', 'rev1a', [])
 
980
            repo.texts.add_lines((inv.root.file_id, 'rev1a'), [], [])
 
981
            repo.add_inventory('rev1a', inv, [])
 
982
            revision = _mod_revision.Revision('rev1a',
 
983
                committer='jrandom@example.com', timestamp=0,
 
984
                inventory_sha1='', timezone=0, message='foo', parent_ids=[])
 
985
            repo.add_revision('rev1a',revision, inv)
 
986
 
 
987
            # make rev1b, which has no Revision, but has an Inventory, and
 
988
            # file1
 
989
            inv = inventory.Inventory(revision_id='rev1b')
 
990
            inv.root.revision = 'rev1b'
 
991
            self.add_file(repo, inv, 'file1', 'rev1b', [])
 
992
            repo.add_inventory('rev1b', inv, [])
 
993
 
 
994
            # make rev2, with file1 and file2
 
995
            # file2 is sane
 
996
            # file1 has 'rev1b' as an ancestor, even though this is not
 
997
            # mentioned by 'rev1a', making it an unreferenced ancestor
 
998
            inv = inventory.Inventory()
 
999
            self.add_file(repo, inv, 'file1', 'rev2', ['rev1a', 'rev1b'])
 
1000
            self.add_file(repo, inv, 'file2', 'rev2', [])
 
1001
            self.add_revision(repo, 'rev2', inv, ['rev1a'])
 
1002
 
 
1003
            # make ghost revision rev1c
 
1004
            inv = inventory.Inventory()
 
1005
            self.add_file(repo, inv, 'file2', 'rev1c', [])
 
1006
 
 
1007
            # make rev3 with file2
 
1008
            # file2 refers to 'rev1c', which is a ghost in this repository, so
 
1009
            # file2 cannot have rev1c as its ancestor.
 
1010
            inv = inventory.Inventory()
 
1011
            self.add_file(repo, inv, 'file2', 'rev3', ['rev1c'])
 
1012
            self.add_revision(repo, 'rev3', inv, ['rev1c'])
 
1013
            return repo
 
1014
        finally:
 
1015
            for cleanup in reversed(cleanups):
 
1016
                cleanup()
 
1017
 
 
1018
    def add_revision(self, repo, revision_id, inv, parent_ids):
 
1019
        inv.revision_id = revision_id
 
1020
        inv.root.revision = revision_id
 
1021
        repo.texts.add_lines((inv.root.file_id, revision_id), [], [])
 
1022
        repo.add_inventory(revision_id, inv, parent_ids)
 
1023
        revision = _mod_revision.Revision(revision_id,
 
1024
            committer='jrandom@example.com', timestamp=0, inventory_sha1='',
 
1025
            timezone=0, message='foo', parent_ids=parent_ids)
 
1026
        repo.add_revision(revision_id,revision, inv)
 
1027
 
 
1028
    def add_file(self, repo, inv, filename, revision, parents):
 
1029
        file_id = filename + '-id'
 
1030
        entry = inventory.InventoryFile(file_id, filename, 'TREE_ROOT')
 
1031
        entry.revision = revision
 
1032
        entry.text_size = 0
 
1033
        inv.add(entry)
 
1034
        text_key = (file_id, revision)
 
1035
        parent_keys = [(file_id, parent) for parent in parents]
 
1036
        repo.texts.add_lines(text_key, parent_keys, ['line\n'])
 
1037
 
 
1038
    def test_insert_from_broken_repo(self):
 
1039
        """Inserting a data stream from a broken repository won't silently
 
1040
        corrupt the target repository.
 
1041
        """
 
1042
        broken_repo = self.make_broken_repository()
 
1043
        empty_repo = self.make_repository('empty-repo')
 
1044
        try:
 
1045
            empty_repo.fetch(broken_repo)
 
1046
        except (errors.RevisionNotPresent, errors.BzrCheckError):
 
1047
            # Test successful: compression parent not being copied leads to
 
1048
            # error.
 
1049
            return
 
1050
        empty_repo.lock_read()
 
1051
        self.addCleanup(empty_repo.unlock)
 
1052
        text = empty_repo.texts.get_record_stream(
 
1053
            [('file2-id', 'rev3')], 'topological', True).next()
 
1054
        self.assertEqual('line\n', text.get_bytes_as('fulltext'))
 
1055
 
 
1056
 
 
1057
class TestRepositoryPackCollection(TestCaseWithTransport):
 
1058
 
 
1059
    def get_format(self):
 
1060
        return bzrdir.format_registry.make_bzrdir('pack-0.92')
 
1061
 
 
1062
    def get_packs(self):
 
1063
        format = self.get_format()
 
1064
        repo = self.make_repository('.', format=format)
 
1065
        return repo._pack_collection
 
1066
 
 
1067
    def make_packs_and_alt_repo(self, write_lock=False):
 
1068
        """Create a pack repo with 3 packs, and access it via a second repo."""
 
1069
        tree = self.make_branch_and_tree('.', format=self.get_format())
 
1070
        tree.lock_write()
 
1071
        self.addCleanup(tree.unlock)
 
1072
        rev1 = tree.commit('one')
 
1073
        rev2 = tree.commit('two')
 
1074
        rev3 = tree.commit('three')
 
1075
        r = repository.Repository.open('.')
 
1076
        if write_lock:
 
1077
            r.lock_write()
 
1078
        else:
 
1079
            r.lock_read()
 
1080
        self.addCleanup(r.unlock)
 
1081
        packs = r._pack_collection
 
1082
        packs.ensure_loaded()
 
1083
        return tree, r, packs, [rev1, rev2, rev3]
 
1084
 
 
1085
    def test__max_pack_count(self):
 
1086
        """The maximum pack count is a function of the number of revisions."""
 
1087
        # no revisions - one pack, so that we can have a revision free repo
 
1088
        # without it blowing up
 
1089
        packs = self.get_packs()
 
1090
        self.assertEqual(1, packs._max_pack_count(0))
 
1091
        # after that the sum of the digits, - check the first 1-9
 
1092
        self.assertEqual(1, packs._max_pack_count(1))
 
1093
        self.assertEqual(2, packs._max_pack_count(2))
 
1094
        self.assertEqual(3, packs._max_pack_count(3))
 
1095
        self.assertEqual(4, packs._max_pack_count(4))
 
1096
        self.assertEqual(5, packs._max_pack_count(5))
 
1097
        self.assertEqual(6, packs._max_pack_count(6))
 
1098
        self.assertEqual(7, packs._max_pack_count(7))
 
1099
        self.assertEqual(8, packs._max_pack_count(8))
 
1100
        self.assertEqual(9, packs._max_pack_count(9))
 
1101
        # check the boundary cases with two digits for the next decade
 
1102
        self.assertEqual(1, packs._max_pack_count(10))
 
1103
        self.assertEqual(2, packs._max_pack_count(11))
 
1104
        self.assertEqual(10, packs._max_pack_count(19))
 
1105
        self.assertEqual(2, packs._max_pack_count(20))
 
1106
        self.assertEqual(3, packs._max_pack_count(21))
 
1107
        # check some arbitrary big numbers
 
1108
        self.assertEqual(25, packs._max_pack_count(112894))
 
1109
 
 
1110
    def test_pack_distribution_zero(self):
 
1111
        packs = self.get_packs()
 
1112
        self.assertEqual([0], packs.pack_distribution(0))
 
1113
 
 
1114
    def test_ensure_loaded_unlocked(self):
 
1115
        packs = self.get_packs()
 
1116
        self.assertRaises(errors.ObjectNotLocked,
 
1117
                          packs.ensure_loaded)
 
1118
 
 
1119
    def test_pack_distribution_one_to_nine(self):
 
1120
        packs = self.get_packs()
 
1121
        self.assertEqual([1],
 
1122
            packs.pack_distribution(1))
 
1123
        self.assertEqual([1, 1],
 
1124
            packs.pack_distribution(2))
 
1125
        self.assertEqual([1, 1, 1],
 
1126
            packs.pack_distribution(3))
 
1127
        self.assertEqual([1, 1, 1, 1],
 
1128
            packs.pack_distribution(4))
 
1129
        self.assertEqual([1, 1, 1, 1, 1],
 
1130
            packs.pack_distribution(5))
 
1131
        self.assertEqual([1, 1, 1, 1, 1, 1],
 
1132
            packs.pack_distribution(6))
 
1133
        self.assertEqual([1, 1, 1, 1, 1, 1, 1],
 
1134
            packs.pack_distribution(7))
 
1135
        self.assertEqual([1, 1, 1, 1, 1, 1, 1, 1],
 
1136
            packs.pack_distribution(8))
 
1137
        self.assertEqual([1, 1, 1, 1, 1, 1, 1, 1, 1],
 
1138
            packs.pack_distribution(9))
 
1139
 
 
1140
    def test_pack_distribution_stable_at_boundaries(self):
 
1141
        """When there are multi-rev packs the counts are stable."""
 
1142
        packs = self.get_packs()
 
1143
        # in 10s:
 
1144
        self.assertEqual([10], packs.pack_distribution(10))
 
1145
        self.assertEqual([10, 1], packs.pack_distribution(11))
 
1146
        self.assertEqual([10, 10], packs.pack_distribution(20))
 
1147
        self.assertEqual([10, 10, 1], packs.pack_distribution(21))
 
1148
        # 100s
 
1149
        self.assertEqual([100], packs.pack_distribution(100))
 
1150
        self.assertEqual([100, 1], packs.pack_distribution(101))
 
1151
        self.assertEqual([100, 10, 1], packs.pack_distribution(111))
 
1152
        self.assertEqual([100, 100], packs.pack_distribution(200))
 
1153
        self.assertEqual([100, 100, 1], packs.pack_distribution(201))
 
1154
        self.assertEqual([100, 100, 10, 1], packs.pack_distribution(211))
 
1155
 
 
1156
    def test_plan_pack_operations_2009_revisions_skip_all_packs(self):
 
1157
        packs = self.get_packs()
 
1158
        existing_packs = [(2000, "big"), (9, "medium")]
 
1159
        # rev count - 2009 -> 2x1000 + 9x1
 
1160
        pack_operations = packs.plan_autopack_combinations(
 
1161
            existing_packs, [1000, 1000, 1, 1, 1, 1, 1, 1, 1, 1, 1])
 
1162
        self.assertEqual([], pack_operations)
 
1163
 
 
1164
    def test_plan_pack_operations_2010_revisions_skip_all_packs(self):
 
1165
        packs = self.get_packs()
 
1166
        existing_packs = [(2000, "big"), (9, "medium"), (1, "single")]
 
1167
        # rev count - 2010 -> 2x1000 + 1x10
 
1168
        pack_operations = packs.plan_autopack_combinations(
 
1169
            existing_packs, [1000, 1000, 10])
 
1170
        self.assertEqual([], pack_operations)
 
1171
 
 
1172
    def test_plan_pack_operations_2010_combines_smallest_two(self):
 
1173
        packs = self.get_packs()
 
1174
        existing_packs = [(1999, "big"), (9, "medium"), (1, "single2"),
 
1175
            (1, "single1")]
 
1176
        # rev count - 2010 -> 2x1000 + 1x10 (3)
 
1177
        pack_operations = packs.plan_autopack_combinations(
 
1178
            existing_packs, [1000, 1000, 10])
 
1179
        self.assertEqual([[2, ["single2", "single1"]]], pack_operations)
 
1180
 
 
1181
    def test_plan_pack_operations_creates_a_single_op(self):
 
1182
        packs = self.get_packs()
 
1183
        existing_packs = [(50, 'a'), (40, 'b'), (30, 'c'), (10, 'd'),
 
1184
                          (10, 'e'), (6, 'f'), (4, 'g')]
 
1185
        # rev count 150 -> 1x100 and 5x10
 
1186
        # The two size 10 packs do not need to be touched. The 50, 40, 30 would
 
1187
        # be combined into a single 120 size pack, and the 6 & 4 would
 
1188
        # becombined into a size 10 pack. However, if we have to rewrite them,
 
1189
        # we save a pack file with no increased I/O by putting them into the
 
1190
        # same file.
 
1191
        distribution = packs.pack_distribution(150)
 
1192
        pack_operations = packs.plan_autopack_combinations(existing_packs,
 
1193
                                                           distribution)
 
1194
        self.assertEqual([[130, ['a', 'b', 'c', 'f', 'g']]], pack_operations)
 
1195
 
 
1196
    def test_all_packs_none(self):
 
1197
        format = self.get_format()
 
1198
        tree = self.make_branch_and_tree('.', format=format)
 
1199
        tree.lock_read()
 
1200
        self.addCleanup(tree.unlock)
 
1201
        packs = tree.branch.repository._pack_collection
 
1202
        packs.ensure_loaded()
 
1203
        self.assertEqual([], packs.all_packs())
 
1204
 
 
1205
    def test_all_packs_one(self):
 
1206
        format = self.get_format()
 
1207
        tree = self.make_branch_and_tree('.', format=format)
 
1208
        tree.commit('start')
 
1209
        tree.lock_read()
 
1210
        self.addCleanup(tree.unlock)
 
1211
        packs = tree.branch.repository._pack_collection
 
1212
        packs.ensure_loaded()
 
1213
        self.assertEqual([
 
1214
            packs.get_pack_by_name(packs.names()[0])],
 
1215
            packs.all_packs())
 
1216
 
 
1217
    def test_all_packs_two(self):
 
1218
        format = self.get_format()
 
1219
        tree = self.make_branch_and_tree('.', format=format)
 
1220
        tree.commit('start')
 
1221
        tree.commit('continue')
 
1222
        tree.lock_read()
 
1223
        self.addCleanup(tree.unlock)
 
1224
        packs = tree.branch.repository._pack_collection
 
1225
        packs.ensure_loaded()
 
1226
        self.assertEqual([
 
1227
            packs.get_pack_by_name(packs.names()[0]),
 
1228
            packs.get_pack_by_name(packs.names()[1]),
 
1229
            ], packs.all_packs())
 
1230
 
 
1231
    def test_get_pack_by_name(self):
 
1232
        format = self.get_format()
 
1233
        tree = self.make_branch_and_tree('.', format=format)
 
1234
        tree.commit('start')
 
1235
        tree.lock_read()
 
1236
        self.addCleanup(tree.unlock)
 
1237
        packs = tree.branch.repository._pack_collection
 
1238
        packs.reset()
 
1239
        packs.ensure_loaded()
 
1240
        name = packs.names()[0]
 
1241
        pack_1 = packs.get_pack_by_name(name)
 
1242
        # the pack should be correctly initialised
 
1243
        sizes = packs._names[name]
 
1244
        rev_index = GraphIndex(packs._index_transport, name + '.rix', sizes[0])
 
1245
        inv_index = GraphIndex(packs._index_transport, name + '.iix', sizes[1])
 
1246
        txt_index = GraphIndex(packs._index_transport, name + '.tix', sizes[2])
 
1247
        sig_index = GraphIndex(packs._index_transport, name + '.six', sizes[3])
 
1248
        self.assertEqual(pack_repo.ExistingPack(packs._pack_transport,
 
1249
            name, rev_index, inv_index, txt_index, sig_index), pack_1)
 
1250
        # and the same instance should be returned on successive calls.
 
1251
        self.assertTrue(pack_1 is packs.get_pack_by_name(name))
 
1252
 
 
1253
    def test_reload_pack_names_new_entry(self):
 
1254
        tree, r, packs, revs = self.make_packs_and_alt_repo()
 
1255
        names = packs.names()
 
1256
        # Add a new pack file into the repository
 
1257
        rev4 = tree.commit('four')
 
1258
        new_names = tree.branch.repository._pack_collection.names()
 
1259
        new_name = set(new_names).difference(names)
 
1260
        self.assertEqual(1, len(new_name))
 
1261
        new_name = new_name.pop()
 
1262
        # The old collection hasn't noticed yet
 
1263
        self.assertEqual(names, packs.names())
 
1264
        self.assertTrue(packs.reload_pack_names())
 
1265
        self.assertEqual(new_names, packs.names())
 
1266
        # And the repository can access the new revision
 
1267
        self.assertEqual({rev4:(revs[-1],)}, r.get_parent_map([rev4]))
 
1268
        self.assertFalse(packs.reload_pack_names())
 
1269
 
 
1270
    def test_reload_pack_names_added_and_removed(self):
 
1271
        tree, r, packs, revs = self.make_packs_and_alt_repo()
 
1272
        names = packs.names()
 
1273
        # Now repack the whole thing
 
1274
        tree.branch.repository.pack()
 
1275
        new_names = tree.branch.repository._pack_collection.names()
 
1276
        # The other collection hasn't noticed yet
 
1277
        self.assertEqual(names, packs.names())
 
1278
        self.assertTrue(packs.reload_pack_names())
 
1279
        self.assertEqual(new_names, packs.names())
 
1280
        self.assertEqual({revs[-1]:(revs[-2],)}, r.get_parent_map([revs[-1]]))
 
1281
        self.assertFalse(packs.reload_pack_names())
 
1282
 
 
1283
    def test_reload_pack_names_preserves_pending(self):
 
1284
        # TODO: Update this to also test for pending-deleted names
 
1285
        tree, r, packs, revs = self.make_packs_and_alt_repo(write_lock=True)
 
1286
        # We will add one pack (via start_write_group + insert_record_stream),
 
1287
        # and remove another pack (via _remove_pack_from_memory)
 
1288
        orig_names = packs.names()
 
1289
        orig_at_load = packs._packs_at_load
 
1290
        to_remove_name = iter(orig_names).next()
 
1291
        r.start_write_group()
 
1292
        self.addCleanup(r.abort_write_group)
 
1293
        r.texts.insert_record_stream([versionedfile.FulltextContentFactory(
 
1294
            ('text', 'rev'), (), None, 'content\n')])
 
1295
        new_pack = packs._new_pack
 
1296
        self.assertTrue(new_pack.data_inserted())
 
1297
        new_pack.finish()
 
1298
        packs.allocate(new_pack)
 
1299
        packs._new_pack = None
 
1300
        removed_pack = packs.get_pack_by_name(to_remove_name)
 
1301
        packs._remove_pack_from_memory(removed_pack)
 
1302
        names = packs.names()
 
1303
        all_nodes, deleted_nodes, new_nodes = packs._diff_pack_names()
 
1304
        new_names = set([x[0][0] for x in new_nodes])
 
1305
        self.assertEqual(names, sorted([x[0][0] for x in all_nodes]))
 
1306
        self.assertEqual(set(names) - set(orig_names), new_names)
 
1307
        self.assertEqual(set([new_pack.name]), new_names)
 
1308
        self.assertEqual([to_remove_name],
 
1309
                         sorted([x[0][0] for x in deleted_nodes]))
 
1310
        packs.reload_pack_names()
 
1311
        reloaded_names = packs.names()
 
1312
        self.assertEqual(orig_at_load, packs._packs_at_load)
 
1313
        self.assertEqual(names, reloaded_names)
 
1314
        all_nodes, deleted_nodes, new_nodes = packs._diff_pack_names()
 
1315
        new_names = set([x[0][0] for x in new_nodes])
 
1316
        self.assertEqual(names, sorted([x[0][0] for x in all_nodes]))
 
1317
        self.assertEqual(set(names) - set(orig_names), new_names)
 
1318
        self.assertEqual(set([new_pack.name]), new_names)
 
1319
        self.assertEqual([to_remove_name],
 
1320
                         sorted([x[0][0] for x in deleted_nodes]))
 
1321
 
 
1322
    def test_autopack_reloads_and_stops(self):
 
1323
        tree, r, packs, revs = self.make_packs_and_alt_repo(write_lock=True)
 
1324
        # After we have determined what needs to be autopacked, trigger a
 
1325
        # full-pack via the other repo which will cause us to re-evaluate and
 
1326
        # decide we don't need to do anything
 
1327
        orig_execute = packs._execute_pack_operations
 
1328
        def _munged_execute_pack_ops(*args, **kwargs):
 
1329
            tree.branch.repository.pack()
 
1330
            return orig_execute(*args, **kwargs)
 
1331
        packs._execute_pack_operations = _munged_execute_pack_ops
 
1332
        packs._max_pack_count = lambda x: 1
 
1333
        packs.pack_distribution = lambda x: [10]
 
1334
        self.assertFalse(packs.autopack())
 
1335
        self.assertEqual(1, len(packs.names()))
 
1336
        self.assertEqual(tree.branch.repository._pack_collection.names(),
 
1337
                         packs.names())
 
1338
 
 
1339
 
 
1340
class TestPack(TestCaseWithTransport):
 
1341
    """Tests for the Pack object."""
 
1342
 
 
1343
    def assertCurrentlyEqual(self, left, right):
 
1344
        self.assertTrue(left == right)
 
1345
        self.assertTrue(right == left)
 
1346
        self.assertFalse(left != right)
 
1347
        self.assertFalse(right != left)
 
1348
 
 
1349
    def assertCurrentlyNotEqual(self, left, right):
 
1350
        self.assertFalse(left == right)
 
1351
        self.assertFalse(right == left)
 
1352
        self.assertTrue(left != right)
 
1353
        self.assertTrue(right != left)
 
1354
 
 
1355
    def test___eq____ne__(self):
 
1356
        left = pack_repo.ExistingPack('', '', '', '', '', '')
 
1357
        right = pack_repo.ExistingPack('', '', '', '', '', '')
 
1358
        self.assertCurrentlyEqual(left, right)
 
1359
        # change all attributes and ensure equality changes as we do.
 
1360
        left.revision_index = 'a'
 
1361
        self.assertCurrentlyNotEqual(left, right)
 
1362
        right.revision_index = 'a'
 
1363
        self.assertCurrentlyEqual(left, right)
 
1364
        left.inventory_index = 'a'
 
1365
        self.assertCurrentlyNotEqual(left, right)
 
1366
        right.inventory_index = 'a'
 
1367
        self.assertCurrentlyEqual(left, right)
 
1368
        left.text_index = 'a'
 
1369
        self.assertCurrentlyNotEqual(left, right)
 
1370
        right.text_index = 'a'
 
1371
        self.assertCurrentlyEqual(left, right)
 
1372
        left.signature_index = 'a'
 
1373
        self.assertCurrentlyNotEqual(left, right)
 
1374
        right.signature_index = 'a'
 
1375
        self.assertCurrentlyEqual(left, right)
 
1376
        left.name = 'a'
 
1377
        self.assertCurrentlyNotEqual(left, right)
 
1378
        right.name = 'a'
 
1379
        self.assertCurrentlyEqual(left, right)
 
1380
        left.transport = 'a'
 
1381
        self.assertCurrentlyNotEqual(left, right)
 
1382
        right.transport = 'a'
 
1383
        self.assertCurrentlyEqual(left, right)
 
1384
 
 
1385
    def test_file_name(self):
 
1386
        pack = pack_repo.ExistingPack('', 'a_name', '', '', '', '')
 
1387
        self.assertEqual('a_name.pack', pack.file_name())
 
1388
 
 
1389
 
 
1390
class TestNewPack(TestCaseWithTransport):
 
1391
    """Tests for pack_repo.NewPack."""
 
1392
 
 
1393
    def test_new_instance_attributes(self):
 
1394
        upload_transport = self.get_transport('upload')
 
1395
        pack_transport = self.get_transport('pack')
 
1396
        index_transport = self.get_transport('index')
 
1397
        upload_transport.mkdir('.')
 
1398
        collection = pack_repo.RepositoryPackCollection(
 
1399
            repo=None,
 
1400
            transport=self.get_transport('.'),
 
1401
            index_transport=index_transport,
 
1402
            upload_transport=upload_transport,
 
1403
            pack_transport=pack_transport,
 
1404
            index_builder_class=BTreeBuilder,
 
1405
            index_class=BTreeGraphIndex,
 
1406
            use_chk_index=False)
 
1407
        pack = pack_repo.NewPack(collection)
 
1408
        self.assertIsInstance(pack.revision_index, BTreeBuilder)
 
1409
        self.assertIsInstance(pack.inventory_index, BTreeBuilder)
 
1410
        self.assertIsInstance(pack._hash, type(osutils.md5()))
 
1411
        self.assertTrue(pack.upload_transport is upload_transport)
 
1412
        self.assertTrue(pack.index_transport is index_transport)
 
1413
        self.assertTrue(pack.pack_transport is pack_transport)
 
1414
        self.assertEqual(None, pack.index_sizes)
 
1415
        self.assertEqual(20, len(pack.random_name))
 
1416
        self.assertIsInstance(pack.random_name, str)
 
1417
        self.assertIsInstance(pack.start_time, float)
 
1418
 
 
1419
 
 
1420
class TestPacker(TestCaseWithTransport):
 
1421
    """Tests for the packs repository Packer class."""
 
1422
 
 
1423
    def test_pack_optimizes_pack_order(self):
 
1424
        builder = self.make_branch_builder('.', format="1.9")
 
1425
        builder.start_series()
 
1426
        builder.build_snapshot('A', None, [
 
1427
            ('add', ('', 'root-id', 'directory', None)),
 
1428
            ('add', ('f', 'f-id', 'file', 'content\n'))])
 
1429
        builder.build_snapshot('B', ['A'],
 
1430
            [('modify', ('f-id', 'new-content\n'))])
 
1431
        builder.build_snapshot('C', ['B'],
 
1432
            [('modify', ('f-id', 'third-content\n'))])
 
1433
        builder.build_snapshot('D', ['C'],
 
1434
            [('modify', ('f-id', 'fourth-content\n'))])
 
1435
        b = builder.get_branch()
 
1436
        b.lock_read()
 
1437
        builder.finish_series()
 
1438
        self.addCleanup(b.unlock)
 
1439
        # At this point, we should have 4 pack files available
 
1440
        # Because of how they were built, they correspond to
 
1441
        # ['D', 'C', 'B', 'A']
 
1442
        packs = b.repository._pack_collection.packs
 
1443
        packer = pack_repo.Packer(b.repository._pack_collection,
 
1444
                                  packs, 'testing',
 
1445
                                  revision_ids=['B', 'C'])
 
1446
        # Now, when we are copying the B & C revisions, their pack files should
 
1447
        # be moved to the front of the stack
 
1448
        # The new ordering moves B & C to the front of the .packs attribute,
 
1449
        # and leaves the others in the original order.
 
1450
        new_packs = [packs[1], packs[2], packs[0], packs[3]]
 
1451
        new_pack = packer.pack()
 
1452
        self.assertEqual(new_packs, packer.packs)
 
1453
 
 
1454
 
 
1455
class TestOptimisingPacker(TestCaseWithTransport):
 
1456
    """Tests for the OptimisingPacker class."""
 
1457
 
 
1458
    def get_pack_collection(self):
 
1459
        repo = self.make_repository('.')
 
1460
        return repo._pack_collection
 
1461
 
 
1462
    def test_open_pack_will_optimise(self):
 
1463
        packer = pack_repo.OptimisingPacker(self.get_pack_collection(),
 
1464
                                            [], '.test')
 
1465
        new_pack = packer.open_pack()
 
1466
        self.assertIsInstance(new_pack, pack_repo.NewPack)
 
1467
        self.assertTrue(new_pack.revision_index._optimize_for_size)
 
1468
        self.assertTrue(new_pack.inventory_index._optimize_for_size)
 
1469
        self.assertTrue(new_pack.text_index._optimize_for_size)
 
1470
        self.assertTrue(new_pack.signature_index._optimize_for_size)
 
1471
 
 
1472
 
 
1473
class TestCrossFormatPacks(TestCaseWithTransport):
 
1474
 
 
1475
    def log_pack(self, hint=None):
 
1476
        self.calls.append(('pack', hint))
 
1477
        self.orig_pack(hint=hint)
 
1478
        if self.expect_hint:
 
1479
            self.assertTrue(hint)
 
1480
 
 
1481
    def run_stream(self, src_fmt, target_fmt, expect_pack_called):
 
1482
        self.expect_hint = expect_pack_called
 
1483
        self.calls = []
 
1484
        source_tree = self.make_branch_and_tree('src', format=src_fmt)
 
1485
        source_tree.lock_write()
 
1486
        self.addCleanup(source_tree.unlock)
 
1487
        tip = source_tree.commit('foo')
 
1488
        target = self.make_repository('target', format=target_fmt)
 
1489
        target.lock_write()
 
1490
        self.addCleanup(target.unlock)
 
1491
        source = source_tree.branch.repository._get_source(target._format)
 
1492
        self.orig_pack = target.pack
 
1493
        target.pack = self.log_pack
 
1494
        search = target.search_missing_revision_ids(
 
1495
            source_tree.branch.repository, tip)
 
1496
        stream = source.get_stream(search)
 
1497
        from_format = source_tree.branch.repository._format
 
1498
        sink = target._get_sink()
 
1499
        sink.insert_stream(stream, from_format, [])
 
1500
        if expect_pack_called:
 
1501
            self.assertLength(1, self.calls)
 
1502
        else:
 
1503
            self.assertLength(0, self.calls)
 
1504
 
 
1505
    def run_fetch(self, src_fmt, target_fmt, expect_pack_called):
 
1506
        self.expect_hint = expect_pack_called
 
1507
        self.calls = []
 
1508
        source_tree = self.make_branch_and_tree('src', format=src_fmt)
 
1509
        source_tree.lock_write()
 
1510
        self.addCleanup(source_tree.unlock)
 
1511
        tip = source_tree.commit('foo')
 
1512
        target = self.make_repository('target', format=target_fmt)
 
1513
        target.lock_write()
 
1514
        self.addCleanup(target.unlock)
 
1515
        source = source_tree.branch.repository
 
1516
        self.orig_pack = target.pack
 
1517
        target.pack = self.log_pack
 
1518
        target.fetch(source)
 
1519
        if expect_pack_called:
 
1520
            self.assertLength(1, self.calls)
 
1521
        else:
 
1522
            self.assertLength(0, self.calls)
 
1523
 
 
1524
    def test_sink_format_hint_no(self):
 
1525
        # When the target format says packing makes no difference, pack is not
 
1526
        # called.
 
1527
        self.run_stream('1.9', 'rich-root-pack', False)
 
1528
 
 
1529
    def test_sink_format_hint_yes(self):
 
1530
        # When the target format says packing makes a difference, pack is
 
1531
        # called.
 
1532
        self.run_stream('1.9', '2a', True)
 
1533
 
 
1534
    def test_sink_format_same_no(self):
 
1535
        # When the formats are the same, pack is not called.
 
1536
        self.run_stream('2a', '2a', False)
 
1537
 
 
1538
    def test_IDS_format_hint_no(self):
 
1539
        # When the target format says packing makes no difference, pack is not
 
1540
        # called.
 
1541
        self.run_fetch('1.9', 'rich-root-pack', False)
 
1542
 
 
1543
    def test_IDS_format_hint_yes(self):
 
1544
        # When the target format says packing makes a difference, pack is
 
1545
        # called.
 
1546
        self.run_fetch('1.9', '2a', True)
 
1547
 
 
1548
    def test_IDS_format_same_no(self):
 
1549
        # When the formats are the same, pack is not called.
 
1550
        self.run_fetch('2a', '2a', False)