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Viewing changes to bzrlib/tests/test_repository.py

(jelmer) Use the absolute_import feature everywhere in bzrlib,
 and add a source test to make sure it's used everywhere. (Jelmer Vernooij)

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1
# Copyright (C) 2006-2011 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 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
 
 
27
import bzrlib
 
28
from bzrlib.errors import (
 
29
    UnknownFormatError,
 
30
    UnsupportedFormatError,
 
31
    )
 
32
from bzrlib import (
 
33
    btree_index,
 
34
    symbol_versioning,
 
35
    tests,
 
36
    transport,
 
37
    vf_search,
 
38
    )
 
39
from bzrlib.btree_index import BTreeBuilder, BTreeGraphIndex
 
40
from bzrlib.index import GraphIndex
 
41
from bzrlib.repository import RepositoryFormat
 
42
from bzrlib.tests import (
 
43
    TestCase,
 
44
    TestCaseWithTransport,
 
45
    )
 
46
from bzrlib import (
 
47
    bzrdir,
 
48
    errors,
 
49
    inventory,
 
50
    osutils,
 
51
    repository,
 
52
    revision as _mod_revision,
 
53
    upgrade,
 
54
    versionedfile,
 
55
    vf_repository,
 
56
    workingtree,
 
57
    )
 
58
from bzrlib.repofmt import (
 
59
    groupcompress_repo,
 
60
    knitrepo,
 
61
    knitpack_repo,
 
62
    pack_repo,
 
63
    )
 
64
 
 
65
 
 
66
class TestDefaultFormat(TestCase):
 
67
 
 
68
    def test_get_set_default_format(self):
 
69
        old_default = bzrdir.format_registry.get('default')
 
70
        private_default = old_default().repository_format.__class__
 
71
        old_format = repository.format_registry.get_default()
 
72
        self.assertTrue(isinstance(old_format, private_default))
 
73
        def make_sample_bzrdir():
 
74
            my_bzrdir = bzrdir.BzrDirMetaFormat1()
 
75
            my_bzrdir.repository_format = SampleRepositoryFormat()
 
76
            return my_bzrdir
 
77
        bzrdir.format_registry.remove('default')
 
78
        bzrdir.format_registry.register('sample', make_sample_bzrdir, '')
 
79
        bzrdir.format_registry.set_default('sample')
 
80
        # creating a repository should now create an instrumented dir.
 
81
        try:
 
82
            # the default branch format is used by the meta dir format
 
83
            # which is not the default bzrdir format at this point
 
84
            dir = bzrdir.BzrDirMetaFormat1().initialize('memory:///')
 
85
            result = dir.create_repository()
 
86
            self.assertEqual(result, 'A bzr repository dir')
 
87
        finally:
 
88
            bzrdir.format_registry.remove('default')
 
89
            bzrdir.format_registry.remove('sample')
 
90
            bzrdir.format_registry.register('default', old_default, '')
 
91
        self.assertIsInstance(repository.format_registry.get_default(),
 
92
                              old_format.__class__)
 
93
 
 
94
 
 
95
class SampleRepositoryFormat(repository.RepositoryFormatMetaDir):
 
96
    """A sample format
 
97
 
 
98
    this format is initializable, unsupported to aid in testing the
 
99
    open and open(unsupported=True) routines.
 
100
    """
 
101
 
 
102
    @classmethod
 
103
    def get_format_string(cls):
 
104
        """See RepositoryFormat.get_format_string()."""
 
105
        return "Sample .bzr repository format."
 
106
 
 
107
    def initialize(self, a_bzrdir, shared=False):
 
108
        """Initialize a repository in a BzrDir"""
 
109
        t = a_bzrdir.get_repository_transport(self)
 
110
        t.put_bytes('format', self.get_format_string())
 
111
        return 'A bzr repository dir'
 
112
 
 
113
    def is_supported(self):
 
114
        return False
 
115
 
 
116
    def open(self, a_bzrdir, _found=False):
 
117
        return "opened repository."
 
118
 
 
119
 
 
120
class SampleExtraRepositoryFormat(repository.RepositoryFormat):
 
121
    """A sample format that can not be used in a metadir
 
122
 
 
123
    """
 
124
 
 
125
    def get_format_string(self):
 
126
        raise NotImplementedError
 
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 = transport.get_transport_from_path(url)
 
141
            found_format = repository.RepositoryFormatMetaDir.find_format(dir)
 
142
            self.assertIsInstance(found_format, format.__class__)
 
143
        check_format(repository.format_registry.get_default(), "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.RepositoryFormatMetaDir.find_format,
 
149
                          dir)
 
150
 
 
151
    def test_from_string(self):
 
152
        self.assertIsInstance(
 
153
            SampleRepositoryFormat.from_string(
 
154
                "Sample .bzr repository format."),
 
155
            SampleRepositoryFormat)
 
156
        self.assertRaises(ValueError,
 
157
            SampleRepositoryFormat.from_string,
 
158
                "Different .bzr repository format.")
 
159
 
 
160
    def test_find_format_unknown_format(self):
 
161
        dir = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
162
        SampleRepositoryFormat().initialize(dir)
 
163
        self.assertRaises(UnknownFormatError,
 
164
                          repository.RepositoryFormatMetaDir.find_format,
 
165
                          dir)
 
166
 
 
167
    def test_register_unregister_format(self):
 
168
        # Test deprecated format registration functions
 
169
        format = SampleRepositoryFormat()
 
170
        # make a control dir
 
171
        dir = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
172
        # make a repo
 
173
        format.initialize(dir)
 
174
        # register a format for it.
 
175
        self.applyDeprecated(symbol_versioning.deprecated_in((2, 4, 0)),
 
176
            repository.RepositoryFormat.register_format, format)
 
177
        # which repository.Open will refuse (not supported)
 
178
        self.assertRaises(UnsupportedFormatError, repository.Repository.open,
 
179
            self.get_url())
 
180
        # but open(unsupported) will work
 
181
        self.assertEqual(format.open(dir), "opened repository.")
 
182
        # unregister the format
 
183
        self.applyDeprecated(symbol_versioning.deprecated_in((2, 4, 0)),
 
184
            repository.RepositoryFormat.unregister_format, format)
 
185
 
 
186
 
 
187
class TestRepositoryFormatRegistry(TestCase):
 
188
 
 
189
    def setUp(self):
 
190
        super(TestRepositoryFormatRegistry, self).setUp()
 
191
        self.registry = repository.RepositoryFormatRegistry()
 
192
 
 
193
    def test_register_unregister_format(self):
 
194
        format = SampleRepositoryFormat()
 
195
        self.registry.register(format)
 
196
        self.assertEquals(format, self.registry.get("Sample .bzr repository format."))
 
197
        self.registry.remove(format)
 
198
        self.assertRaises(KeyError, self.registry.get, "Sample .bzr repository format.")
 
199
 
 
200
    def test_get_all(self):
 
201
        format = SampleRepositoryFormat()
 
202
        self.assertEquals([], self.registry._get_all())
 
203
        self.registry.register(format)
 
204
        self.assertEquals([format], self.registry._get_all())
 
205
 
 
206
    def test_register_extra(self):
 
207
        format = SampleExtraRepositoryFormat()
 
208
        self.assertEquals([], self.registry._get_all())
 
209
        self.registry.register_extra(format)
 
210
        self.assertEquals([format], self.registry._get_all())
 
211
 
 
212
    def test_register_extra_lazy(self):
 
213
        self.assertEquals([], self.registry._get_all())
 
214
        self.registry.register_extra_lazy("bzrlib.tests.test_repository",
 
215
            "SampleExtraRepositoryFormat")
 
216
        formats = self.registry._get_all()
 
217
        self.assertEquals(1, len(formats))
 
218
        self.assertIsInstance(formats[0], SampleExtraRepositoryFormat)
 
219
 
 
220
 
 
221
class TestFormatKnit1(TestCaseWithTransport):
 
222
 
 
223
    def test_attribute__fetch_order(self):
 
224
        """Knits need topological data insertion."""
 
225
        repo = self.make_repository('.',
 
226
                format=bzrdir.format_registry.get('knit')())
 
227
        self.assertEqual('topological', repo._format._fetch_order)
 
228
 
 
229
    def test_attribute__fetch_uses_deltas(self):
 
230
        """Knits reuse deltas."""
 
231
        repo = self.make_repository('.',
 
232
                format=bzrdir.format_registry.get('knit')())
 
233
        self.assertEqual(True, repo._format._fetch_uses_deltas)
 
234
 
 
235
    def test_disk_layout(self):
 
236
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
237
        repo = knitrepo.RepositoryFormatKnit1().initialize(control)
 
238
        # in case of side effects of locking.
 
239
        repo.lock_write()
 
240
        repo.unlock()
 
241
        # we want:
 
242
        # format 'Bazaar-NG Knit Repository Format 1'
 
243
        # lock: is a directory
 
244
        # inventory.weave == empty_weave
 
245
        # empty revision-store directory
 
246
        # empty weaves directory
 
247
        t = control.get_repository_transport(None)
 
248
        self.assertEqualDiff('Bazaar-NG Knit Repository Format 1',
 
249
                             t.get('format').read())
 
250
        # XXX: no locks left when unlocked at the moment
 
251
        # self.assertEqualDiff('', t.get('lock').read())
 
252
        self.assertTrue(S_ISDIR(t.stat('knits').st_mode))
 
253
        self.check_knits(t)
 
254
        # Check per-file knits.
 
255
        branch = control.create_branch()
 
256
        tree = control.create_workingtree()
 
257
        tree.add(['foo'], ['Nasty-IdC:'], ['file'])
 
258
        tree.put_file_bytes_non_atomic('Nasty-IdC:', '')
 
259
        tree.commit('1st post', rev_id='foo')
 
260
        self.assertHasKnit(t, 'knits/e8/%254easty-%2549d%2543%253a',
 
261
            '\nfoo fulltext 0 81  :')
 
262
 
 
263
    def assertHasKnit(self, t, knit_name, extra_content=''):
 
264
        """Assert that knit_name exists on t."""
 
265
        self.assertEqualDiff('# bzr knit index 8\n' + extra_content,
 
266
                             t.get(knit_name + '.kndx').read())
 
267
 
 
268
    def check_knits(self, t):
 
269
        """check knit content for a repository."""
 
270
        self.assertHasKnit(t, 'inventory')
 
271
        self.assertHasKnit(t, 'revisions')
 
272
        self.assertHasKnit(t, 'signatures')
 
273
 
 
274
    def test_shared_disk_layout(self):
 
275
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
276
        repo = knitrepo.RepositoryFormatKnit1().initialize(control, shared=True)
 
277
        # we want:
 
278
        # format 'Bazaar-NG Knit Repository Format 1'
 
279
        # lock: is a directory
 
280
        # inventory.weave == empty_weave
 
281
        # empty revision-store directory
 
282
        # empty weaves directory
 
283
        # a 'shared-storage' marker file.
 
284
        t = control.get_repository_transport(None)
 
285
        self.assertEqualDiff('Bazaar-NG Knit Repository Format 1',
 
286
                             t.get('format').read())
 
287
        # XXX: no locks left when unlocked at the moment
 
288
        # self.assertEqualDiff('', t.get('lock').read())
 
289
        self.assertEqualDiff('', t.get('shared-storage').read())
 
290
        self.assertTrue(S_ISDIR(t.stat('knits').st_mode))
 
291
        self.check_knits(t)
 
292
 
 
293
    def test_shared_no_tree_disk_layout(self):
 
294
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
295
        repo = knitrepo.RepositoryFormatKnit1().initialize(control, shared=True)
 
296
        repo.set_make_working_trees(False)
 
297
        # we want:
 
298
        # format 'Bazaar-NG Knit Repository Format 1'
 
299
        # lock ''
 
300
        # inventory.weave == empty_weave
 
301
        # empty revision-store directory
 
302
        # empty weaves directory
 
303
        # a 'shared-storage' marker file.
 
304
        t = control.get_repository_transport(None)
 
305
        self.assertEqualDiff('Bazaar-NG Knit Repository Format 1',
 
306
                             t.get('format').read())
 
307
        # XXX: no locks left when unlocked at the moment
 
308
        # self.assertEqualDiff('', t.get('lock').read())
 
309
        self.assertEqualDiff('', t.get('shared-storage').read())
 
310
        self.assertEqualDiff('', t.get('no-working-trees').read())
 
311
        repo.set_make_working_trees(True)
 
312
        self.assertFalse(t.has('no-working-trees'))
 
313
        self.assertTrue(S_ISDIR(t.stat('knits').st_mode))
 
314
        self.check_knits(t)
 
315
 
 
316
    def test_deserialise_sets_root_revision(self):
 
317
        """We must have a inventory.root.revision
 
318
 
 
319
        Old versions of the XML5 serializer did not set the revision_id for
 
320
        the whole inventory. So we grab the one from the expected text. Which
 
321
        is valid when the api is not being abused.
 
322
        """
 
323
        repo = self.make_repository('.',
 
324
                format=bzrdir.format_registry.get('knit')())
 
325
        inv_xml = '<inventory format="5">\n</inventory>\n'
 
326
        inv = repo._deserialise_inventory('test-rev-id', inv_xml)
 
327
        self.assertEqual('test-rev-id', inv.root.revision)
 
328
 
 
329
    def test_deserialise_uses_global_revision_id(self):
 
330
        """If it is set, then we re-use the global revision id"""
 
331
        repo = self.make_repository('.',
 
332
                format=bzrdir.format_registry.get('knit')())
 
333
        inv_xml = ('<inventory format="5" revision_id="other-rev-id">\n'
 
334
                   '</inventory>\n')
 
335
        # Arguably, the deserialise_inventory should detect a mismatch, and
 
336
        # raise an error, rather than silently using one revision_id over the
 
337
        # other.
 
338
        self.assertRaises(AssertionError, repo._deserialise_inventory,
 
339
            'test-rev-id', inv_xml)
 
340
        inv = repo._deserialise_inventory('other-rev-id', inv_xml)
 
341
        self.assertEqual('other-rev-id', inv.root.revision)
 
342
 
 
343
    def test_supports_external_lookups(self):
 
344
        repo = self.make_repository('.',
 
345
                format=bzrdir.format_registry.get('knit')())
 
346
        self.assertFalse(repo._format.supports_external_lookups)
 
347
 
 
348
 
 
349
class DummyRepository(object):
 
350
    """A dummy repository for testing."""
 
351
 
 
352
    _format = None
 
353
    _serializer = None
 
354
 
 
355
    def supports_rich_root(self):
 
356
        if self._format is not None:
 
357
            return self._format.rich_root_data
 
358
        return False
 
359
 
 
360
    def get_graph(self):
 
361
        raise NotImplementedError
 
362
 
 
363
    def get_parent_map(self, revision_ids):
 
364
        raise NotImplementedError
 
365
 
 
366
 
 
367
class InterDummy(repository.InterRepository):
 
368
    """An inter-repository optimised code path for DummyRepository.
 
369
 
 
370
    This is for use during testing where we use DummyRepository as repositories
 
371
    so that none of the default regsitered inter-repository classes will
 
372
    MATCH.
 
373
    """
 
374
 
 
375
    @staticmethod
 
376
    def is_compatible(repo_source, repo_target):
 
377
        """InterDummy is compatible with DummyRepository."""
 
378
        return (isinstance(repo_source, DummyRepository) and
 
379
            isinstance(repo_target, DummyRepository))
 
380
 
 
381
 
 
382
class TestInterRepository(TestCaseWithTransport):
 
383
 
 
384
    def test_get_default_inter_repository(self):
 
385
        # test that the InterRepository.get(repo_a, repo_b) probes
 
386
        # for a inter_repo class where is_compatible(repo_a, repo_b) returns
 
387
        # true and returns a default inter_repo otherwise.
 
388
        # This also tests that the default registered optimised interrepository
 
389
        # classes do not barf inappropriately when a surprising repository type
 
390
        # is handed to them.
 
391
        dummy_a = DummyRepository()
 
392
        dummy_a._format = RepositoryFormat()
 
393
        dummy_a._format.supports_full_versioned_files = True
 
394
        dummy_b = DummyRepository()
 
395
        dummy_b._format = RepositoryFormat()
 
396
        dummy_b._format.supports_full_versioned_files = True
 
397
        self.assertGetsDefaultInterRepository(dummy_a, dummy_b)
 
398
 
 
399
    def assertGetsDefaultInterRepository(self, repo_a, repo_b):
 
400
        """Asserts that InterRepository.get(repo_a, repo_b) -> the default.
 
401
 
 
402
        The effective default is now InterSameDataRepository because there is
 
403
        no actual sane default in the presence of incompatible data models.
 
404
        """
 
405
        inter_repo = repository.InterRepository.get(repo_a, repo_b)
 
406
        self.assertEqual(vf_repository.InterSameDataRepository,
 
407
                         inter_repo.__class__)
 
408
        self.assertEqual(repo_a, inter_repo.source)
 
409
        self.assertEqual(repo_b, inter_repo.target)
 
410
 
 
411
    def test_register_inter_repository_class(self):
 
412
        # test that a optimised code path provider - a
 
413
        # InterRepository subclass can be registered and unregistered
 
414
        # and that it is correctly selected when given a repository
 
415
        # pair that it returns true on for the is_compatible static method
 
416
        # check
 
417
        dummy_a = DummyRepository()
 
418
        dummy_a._format = RepositoryFormat()
 
419
        dummy_b = DummyRepository()
 
420
        dummy_b._format = RepositoryFormat()
 
421
        repo = self.make_repository('.')
 
422
        # hack dummies to look like repo somewhat.
 
423
        dummy_a._serializer = repo._serializer
 
424
        dummy_a._format.supports_tree_reference = repo._format.supports_tree_reference
 
425
        dummy_a._format.rich_root_data = repo._format.rich_root_data
 
426
        dummy_a._format.supports_full_versioned_files = repo._format.supports_full_versioned_files
 
427
        dummy_b._serializer = repo._serializer
 
428
        dummy_b._format.supports_tree_reference = repo._format.supports_tree_reference
 
429
        dummy_b._format.rich_root_data = repo._format.rich_root_data
 
430
        dummy_b._format.supports_full_versioned_files = repo._format.supports_full_versioned_files
 
431
        repository.InterRepository.register_optimiser(InterDummy)
 
432
        try:
 
433
            # we should get the default for something InterDummy returns False
 
434
            # to
 
435
            self.assertFalse(InterDummy.is_compatible(dummy_a, repo))
 
436
            self.assertGetsDefaultInterRepository(dummy_a, repo)
 
437
            # and we should get an InterDummy for a pair it 'likes'
 
438
            self.assertTrue(InterDummy.is_compatible(dummy_a, dummy_b))
 
439
            inter_repo = repository.InterRepository.get(dummy_a, dummy_b)
 
440
            self.assertEqual(InterDummy, inter_repo.__class__)
 
441
            self.assertEqual(dummy_a, inter_repo.source)
 
442
            self.assertEqual(dummy_b, inter_repo.target)
 
443
        finally:
 
444
            repository.InterRepository.unregister_optimiser(InterDummy)
 
445
        # now we should get the default InterRepository object again.
 
446
        self.assertGetsDefaultInterRepository(dummy_a, dummy_b)
 
447
 
 
448
 
 
449
class TestRepositoryFormat1(knitrepo.RepositoryFormatKnit1):
 
450
 
 
451
    @classmethod
 
452
    def get_format_string(cls):
 
453
        return "Test Format 1"
 
454
 
 
455
 
 
456
class TestRepositoryFormat2(knitrepo.RepositoryFormatKnit1):
 
457
 
 
458
    @classmethod
 
459
    def get_format_string(cls):
 
460
        return "Test Format 2"
 
461
 
 
462
 
 
463
class TestRepositoryConverter(TestCaseWithTransport):
 
464
 
 
465
    def test_convert_empty(self):
 
466
        source_format = TestRepositoryFormat1()
 
467
        target_format = TestRepositoryFormat2()
 
468
        repository.format_registry.register(source_format)
 
469
        self.addCleanup(repository.format_registry.remove,
 
470
            source_format)
 
471
        repository.format_registry.register(target_format)
 
472
        self.addCleanup(repository.format_registry.remove,
 
473
            target_format)
 
474
        t = self.get_transport()
 
475
        t.mkdir('repository')
 
476
        repo_dir = bzrdir.BzrDirMetaFormat1().initialize('repository')
 
477
        repo = TestRepositoryFormat1().initialize(repo_dir)
 
478
        converter = repository.CopyConverter(target_format)
 
479
        pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
480
        try:
 
481
            converter.convert(repo, pb)
 
482
        finally:
 
483
            pb.finished()
 
484
        repo = repo_dir.open_repository()
 
485
        self.assertTrue(isinstance(target_format, repo._format.__class__))
 
486
 
 
487
 
 
488
class TestRepositoryFormatKnit3(TestCaseWithTransport):
 
489
 
 
490
    def test_attribute__fetch_order(self):
 
491
        """Knits need topological data insertion."""
 
492
        format = bzrdir.BzrDirMetaFormat1()
 
493
        format.repository_format = knitrepo.RepositoryFormatKnit3()
 
494
        repo = self.make_repository('.', format=format)
 
495
        self.assertEqual('topological', repo._format._fetch_order)
 
496
 
 
497
    def test_attribute__fetch_uses_deltas(self):
 
498
        """Knits reuse deltas."""
 
499
        format = bzrdir.BzrDirMetaFormat1()
 
500
        format.repository_format = knitrepo.RepositoryFormatKnit3()
 
501
        repo = self.make_repository('.', format=format)
 
502
        self.assertEqual(True, repo._format._fetch_uses_deltas)
 
503
 
 
504
    def test_convert(self):
 
505
        """Ensure the upgrade adds weaves for roots"""
 
506
        format = bzrdir.BzrDirMetaFormat1()
 
507
        format.repository_format = knitrepo.RepositoryFormatKnit1()
 
508
        tree = self.make_branch_and_tree('.', format)
 
509
        tree.commit("Dull commit", rev_id="dull")
 
510
        revision_tree = tree.branch.repository.revision_tree('dull')
 
511
        revision_tree.lock_read()
 
512
        try:
 
513
            self.assertRaises(errors.NoSuchFile, revision_tree.get_file_lines,
 
514
                revision_tree.inventory.root.file_id)
 
515
        finally:
 
516
            revision_tree.unlock()
 
517
        format = bzrdir.BzrDirMetaFormat1()
 
518
        format.repository_format = knitrepo.RepositoryFormatKnit3()
 
519
        upgrade.Convert('.', format)
 
520
        tree = workingtree.WorkingTree.open('.')
 
521
        revision_tree = tree.branch.repository.revision_tree('dull')
 
522
        revision_tree.lock_read()
 
523
        try:
 
524
            revision_tree.get_file_lines(revision_tree.inventory.root.file_id)
 
525
        finally:
 
526
            revision_tree.unlock()
 
527
        tree.commit("Another dull commit", rev_id='dull2')
 
528
        revision_tree = tree.branch.repository.revision_tree('dull2')
 
529
        revision_tree.lock_read()
 
530
        self.addCleanup(revision_tree.unlock)
 
531
        self.assertEqual('dull', revision_tree.inventory.root.revision)
 
532
 
 
533
    def test_supports_external_lookups(self):
 
534
        format = bzrdir.BzrDirMetaFormat1()
 
535
        format.repository_format = knitrepo.RepositoryFormatKnit3()
 
536
        repo = self.make_repository('.', format=format)
 
537
        self.assertFalse(repo._format.supports_external_lookups)
 
538
 
 
539
 
 
540
class Test2a(tests.TestCaseWithMemoryTransport):
 
541
 
 
542
    def test_chk_bytes_uses_custom_btree_parser(self):
 
543
        mt = self.make_branch_and_memory_tree('test', format='2a')
 
544
        mt.lock_write()
 
545
        self.addCleanup(mt.unlock)
 
546
        mt.add([''], ['root-id'])
 
547
        mt.commit('first')
 
548
        index = mt.branch.repository.chk_bytes._index._graph_index._indices[0]
 
549
        self.assertEqual(btree_index._gcchk_factory, index._leaf_factory)
 
550
        # It should also work if we re-open the repo
 
551
        repo = mt.branch.repository.bzrdir.open_repository()
 
552
        repo.lock_read()
 
553
        self.addCleanup(repo.unlock)
 
554
        index = repo.chk_bytes._index._graph_index._indices[0]
 
555
        self.assertEqual(btree_index._gcchk_factory, index._leaf_factory)
 
556
 
 
557
    def test_fetch_combines_groups(self):
 
558
        builder = self.make_branch_builder('source', format='2a')
 
559
        builder.start_series()
 
560
        builder.build_snapshot('1', None, [
 
561
            ('add', ('', 'root-id', 'directory', '')),
 
562
            ('add', ('file', 'file-id', 'file', 'content\n'))])
 
563
        builder.build_snapshot('2', ['1'], [
 
564
            ('modify', ('file-id', 'content-2\n'))])
 
565
        builder.finish_series()
 
566
        source = builder.get_branch()
 
567
        target = self.make_repository('target', format='2a')
 
568
        target.fetch(source.repository)
 
569
        target.lock_read()
 
570
        self.addCleanup(target.unlock)
 
571
        details = target.texts._index.get_build_details(
 
572
            [('file-id', '1',), ('file-id', '2',)])
 
573
        file_1_details = details[('file-id', '1')]
 
574
        file_2_details = details[('file-id', '2')]
 
575
        # The index, and what to read off disk, should be the same for both
 
576
        # versions of the file.
 
577
        self.assertEqual(file_1_details[0][:3], file_2_details[0][:3])
 
578
 
 
579
    def test_fetch_combines_groups(self):
 
580
        builder = self.make_branch_builder('source', format='2a')
 
581
        builder.start_series()
 
582
        builder.build_snapshot('1', None, [
 
583
            ('add', ('', 'root-id', 'directory', '')),
 
584
            ('add', ('file', 'file-id', 'file', 'content\n'))])
 
585
        builder.build_snapshot('2', ['1'], [
 
586
            ('modify', ('file-id', 'content-2\n'))])
 
587
        builder.finish_series()
 
588
        source = builder.get_branch()
 
589
        target = self.make_repository('target', format='2a')
 
590
        target.fetch(source.repository)
 
591
        target.lock_read()
 
592
        self.addCleanup(target.unlock)
 
593
        details = target.texts._index.get_build_details(
 
594
            [('file-id', '1',), ('file-id', '2',)])
 
595
        file_1_details = details[('file-id', '1')]
 
596
        file_2_details = details[('file-id', '2')]
 
597
        # The index, and what to read off disk, should be the same for both
 
598
        # versions of the file.
 
599
        self.assertEqual(file_1_details[0][:3], file_2_details[0][:3])
 
600
 
 
601
    def test_fetch_combines_groups(self):
 
602
        builder = self.make_branch_builder('source', format='2a')
 
603
        builder.start_series()
 
604
        builder.build_snapshot('1', None, [
 
605
            ('add', ('', 'root-id', 'directory', '')),
 
606
            ('add', ('file', 'file-id', 'file', 'content\n'))])
 
607
        builder.build_snapshot('2', ['1'], [
 
608
            ('modify', ('file-id', 'content-2\n'))])
 
609
        builder.finish_series()
 
610
        source = builder.get_branch()
 
611
        target = self.make_repository('target', format='2a')
 
612
        target.fetch(source.repository)
 
613
        target.lock_read()
 
614
        self.addCleanup(target.unlock)
 
615
        details = target.texts._index.get_build_details(
 
616
            [('file-id', '1',), ('file-id', '2',)])
 
617
        file_1_details = details[('file-id', '1')]
 
618
        file_2_details = details[('file-id', '2')]
 
619
        # The index, and what to read off disk, should be the same for both
 
620
        # versions of the file.
 
621
        self.assertEqual(file_1_details[0][:3], file_2_details[0][:3])
 
622
 
 
623
    def test_format_pack_compresses_True(self):
 
624
        repo = self.make_repository('repo', format='2a')
 
625
        self.assertTrue(repo._format.pack_compresses)
 
626
 
 
627
    def test_inventories_use_chk_map_with_parent_base_dict(self):
 
628
        tree = self.make_branch_and_memory_tree('repo', format="2a")
 
629
        tree.lock_write()
 
630
        tree.add([''], ['TREE_ROOT'])
 
631
        revid = tree.commit("foo")
 
632
        tree.unlock()
 
633
        tree.lock_read()
 
634
        self.addCleanup(tree.unlock)
 
635
        inv = tree.branch.repository.get_inventory(revid)
 
636
        self.assertNotEqual(None, inv.parent_id_basename_to_file_id)
 
637
        inv.parent_id_basename_to_file_id._ensure_root()
 
638
        inv.id_to_entry._ensure_root()
 
639
        self.assertEqual(65536, inv.id_to_entry._root_node.maximum_size)
 
640
        self.assertEqual(65536,
 
641
            inv.parent_id_basename_to_file_id._root_node.maximum_size)
 
642
 
 
643
    def test_autopack_unchanged_chk_nodes(self):
 
644
        # at 20 unchanged commits, chk pages are packed that are split into
 
645
        # two groups such that the new pack being made doesn't have all its
 
646
        # pages in the source packs (though they are in the repository).
 
647
        # Use a memory backed repository, we don't need to hit disk for this
 
648
        tree = self.make_branch_and_memory_tree('tree', format='2a')
 
649
        tree.lock_write()
 
650
        self.addCleanup(tree.unlock)
 
651
        tree.add([''], ['TREE_ROOT'])
 
652
        for pos in range(20):
 
653
            tree.commit(str(pos))
 
654
 
 
655
    def test_pack_with_hint(self):
 
656
        tree = self.make_branch_and_memory_tree('tree', format='2a')
 
657
        tree.lock_write()
 
658
        self.addCleanup(tree.unlock)
 
659
        tree.add([''], ['TREE_ROOT'])
 
660
        # 1 commit to leave untouched
 
661
        tree.commit('1')
 
662
        to_keep = tree.branch.repository._pack_collection.names()
 
663
        # 2 to combine
 
664
        tree.commit('2')
 
665
        tree.commit('3')
 
666
        all = tree.branch.repository._pack_collection.names()
 
667
        combine = list(set(all) - set(to_keep))
 
668
        self.assertLength(3, all)
 
669
        self.assertLength(2, combine)
 
670
        tree.branch.repository.pack(hint=combine)
 
671
        final = tree.branch.repository._pack_collection.names()
 
672
        self.assertLength(2, final)
 
673
        self.assertFalse(combine[0] in final)
 
674
        self.assertFalse(combine[1] in final)
 
675
        self.assertSubset(to_keep, final)
 
676
 
 
677
    def test_stream_source_to_gc(self):
 
678
        source = self.make_repository('source', format='2a')
 
679
        target = self.make_repository('target', format='2a')
 
680
        stream = source._get_source(target._format)
 
681
        self.assertIsInstance(stream, groupcompress_repo.GroupCHKStreamSource)
 
682
 
 
683
    def test_stream_source_to_non_gc(self):
 
684
        source = self.make_repository('source', format='2a')
 
685
        target = self.make_repository('target', format='rich-root-pack')
 
686
        stream = source._get_source(target._format)
 
687
        # We don't want the child GroupCHKStreamSource
 
688
        self.assertIs(type(stream), vf_repository.StreamSource)
 
689
 
 
690
    def test_get_stream_for_missing_keys_includes_all_chk_refs(self):
 
691
        source_builder = self.make_branch_builder('source',
 
692
                            format='2a')
 
693
        # We have to build a fairly large tree, so that we are sure the chk
 
694
        # pages will have split into multiple pages.
 
695
        entries = [('add', ('', 'a-root-id', 'directory', None))]
 
696
        for i in 'abcdefghijklmnopqrstuvwxyz123456789':
 
697
            for j in 'abcdefghijklmnopqrstuvwxyz123456789':
 
698
                fname = i + j
 
699
                fid = fname + '-id'
 
700
                content = 'content for %s\n' % (fname,)
 
701
                entries.append(('add', (fname, fid, 'file', content)))
 
702
        source_builder.start_series()
 
703
        source_builder.build_snapshot('rev-1', None, entries)
 
704
        # Now change a few of them, so we get a few new pages for the second
 
705
        # revision
 
706
        source_builder.build_snapshot('rev-2', ['rev-1'], [
 
707
            ('modify', ('aa-id', 'new content for aa-id\n')),
 
708
            ('modify', ('cc-id', 'new content for cc-id\n')),
 
709
            ('modify', ('zz-id', 'new content for zz-id\n')),
 
710
            ])
 
711
        source_builder.finish_series()
 
712
        source_branch = source_builder.get_branch()
 
713
        source_branch.lock_read()
 
714
        self.addCleanup(source_branch.unlock)
 
715
        target = self.make_repository('target', format='2a')
 
716
        source = source_branch.repository._get_source(target._format)
 
717
        self.assertIsInstance(source, groupcompress_repo.GroupCHKStreamSource)
 
718
 
 
719
        # On a regular pass, getting the inventories and chk pages for rev-2
 
720
        # would only get the newly created chk pages
 
721
        search = vf_search.SearchResult(set(['rev-2']), set(['rev-1']), 1,
 
722
                                    set(['rev-2']))
 
723
        simple_chk_records = []
 
724
        for vf_name, substream in source.get_stream(search):
 
725
            if vf_name == 'chk_bytes':
 
726
                for record in substream:
 
727
                    simple_chk_records.append(record.key)
 
728
            else:
 
729
                for _ in substream:
 
730
                    continue
 
731
        # 3 pages, the root (InternalNode), + 2 pages which actually changed
 
732
        self.assertEqual([('sha1:91481f539e802c76542ea5e4c83ad416bf219f73',),
 
733
                          ('sha1:4ff91971043668583985aec83f4f0ab10a907d3f',),
 
734
                          ('sha1:81e7324507c5ca132eedaf2d8414ee4bb2226187',),
 
735
                          ('sha1:b101b7da280596c71a4540e9a1eeba8045985ee0',)],
 
736
                         simple_chk_records)
 
737
        # Now, when we do a similar call using 'get_stream_for_missing_keys'
 
738
        # we should get a much larger set of pages.
 
739
        missing = [('inventories', 'rev-2')]
 
740
        full_chk_records = []
 
741
        for vf_name, substream in source.get_stream_for_missing_keys(missing):
 
742
            if vf_name == 'inventories':
 
743
                for record in substream:
 
744
                    self.assertEqual(('rev-2',), record.key)
 
745
            elif vf_name == 'chk_bytes':
 
746
                for record in substream:
 
747
                    full_chk_records.append(record.key)
 
748
            else:
 
749
                self.fail('Should not be getting a stream of %s' % (vf_name,))
 
750
        # We have 257 records now. This is because we have 1 root page, and 256
 
751
        # leaf pages in a complete listing.
 
752
        self.assertEqual(257, len(full_chk_records))
 
753
        self.assertSubset(simple_chk_records, full_chk_records)
 
754
 
 
755
    def test_inconsistency_fatal(self):
 
756
        repo = self.make_repository('repo', format='2a')
 
757
        self.assertTrue(repo.revisions._index._inconsistency_fatal)
 
758
        self.assertFalse(repo.texts._index._inconsistency_fatal)
 
759
        self.assertFalse(repo.inventories._index._inconsistency_fatal)
 
760
        self.assertFalse(repo.signatures._index._inconsistency_fatal)
 
761
        self.assertFalse(repo.chk_bytes._index._inconsistency_fatal)
 
762
 
 
763
 
 
764
class TestKnitPackStreamSource(tests.TestCaseWithMemoryTransport):
 
765
 
 
766
    def test_source_to_exact_pack_092(self):
 
767
        source = self.make_repository('source', format='pack-0.92')
 
768
        target = self.make_repository('target', format='pack-0.92')
 
769
        stream_source = source._get_source(target._format)
 
770
        self.assertIsInstance(stream_source, knitpack_repo.KnitPackStreamSource)
 
771
 
 
772
    def test_source_to_exact_pack_rich_root_pack(self):
 
773
        source = self.make_repository('source', format='rich-root-pack')
 
774
        target = self.make_repository('target', format='rich-root-pack')
 
775
        stream_source = source._get_source(target._format)
 
776
        self.assertIsInstance(stream_source, knitpack_repo.KnitPackStreamSource)
 
777
 
 
778
    def test_source_to_exact_pack_19(self):
 
779
        source = self.make_repository('source', format='1.9')
 
780
        target = self.make_repository('target', format='1.9')
 
781
        stream_source = source._get_source(target._format)
 
782
        self.assertIsInstance(stream_source, knitpack_repo.KnitPackStreamSource)
 
783
 
 
784
    def test_source_to_exact_pack_19_rich_root(self):
 
785
        source = self.make_repository('source', format='1.9-rich-root')
 
786
        target = self.make_repository('target', format='1.9-rich-root')
 
787
        stream_source = source._get_source(target._format)
 
788
        self.assertIsInstance(stream_source, knitpack_repo.KnitPackStreamSource)
 
789
 
 
790
    def test_source_to_remote_exact_pack_19(self):
 
791
        trans = self.make_smart_server('target')
 
792
        trans.ensure_base()
 
793
        source = self.make_repository('source', format='1.9')
 
794
        target = self.make_repository('target', format='1.9')
 
795
        target = repository.Repository.open(trans.base)
 
796
        stream_source = source._get_source(target._format)
 
797
        self.assertIsInstance(stream_source, knitpack_repo.KnitPackStreamSource)
 
798
 
 
799
    def test_stream_source_to_non_exact(self):
 
800
        source = self.make_repository('source', format='pack-0.92')
 
801
        target = self.make_repository('target', format='1.9')
 
802
        stream = source._get_source(target._format)
 
803
        self.assertIs(type(stream), vf_repository.StreamSource)
 
804
 
 
805
    def test_stream_source_to_non_exact_rich_root(self):
 
806
        source = self.make_repository('source', format='1.9')
 
807
        target = self.make_repository('target', format='1.9-rich-root')
 
808
        stream = source._get_source(target._format)
 
809
        self.assertIs(type(stream), vf_repository.StreamSource)
 
810
 
 
811
    def test_source_to_remote_non_exact_pack_19(self):
 
812
        trans = self.make_smart_server('target')
 
813
        trans.ensure_base()
 
814
        source = self.make_repository('source', format='1.9')
 
815
        target = self.make_repository('target', format='1.6')
 
816
        target = repository.Repository.open(trans.base)
 
817
        stream_source = source._get_source(target._format)
 
818
        self.assertIs(type(stream_source), vf_repository.StreamSource)
 
819
 
 
820
    def test_stream_source_to_knit(self):
 
821
        source = self.make_repository('source', format='pack-0.92')
 
822
        target = self.make_repository('target', format='dirstate')
 
823
        stream = source._get_source(target._format)
 
824
        self.assertIs(type(stream), vf_repository.StreamSource)
 
825
 
 
826
 
 
827
class TestDevelopment6FindParentIdsOfRevisions(TestCaseWithTransport):
 
828
    """Tests for _find_parent_ids_of_revisions."""
 
829
 
 
830
    def setUp(self):
 
831
        super(TestDevelopment6FindParentIdsOfRevisions, self).setUp()
 
832
        self.builder = self.make_branch_builder('source')
 
833
        self.builder.start_series()
 
834
        self.builder.build_snapshot('initial', None,
 
835
            [('add', ('', 'tree-root', 'directory', None))])
 
836
        self.repo = self.builder.get_branch().repository
 
837
        self.addCleanup(self.builder.finish_series)
 
838
 
 
839
    def assertParentIds(self, expected_result, rev_set):
 
840
        self.assertEqual(sorted(expected_result),
 
841
            sorted(self.repo._find_parent_ids_of_revisions(rev_set)))
 
842
 
 
843
    def test_simple(self):
 
844
        self.builder.build_snapshot('revid1', None, [])
 
845
        self.builder.build_snapshot('revid2', ['revid1'], [])
 
846
        rev_set = ['revid2']
 
847
        self.assertParentIds(['revid1'], rev_set)
 
848
 
 
849
    def test_not_first_parent(self):
 
850
        self.builder.build_snapshot('revid1', None, [])
 
851
        self.builder.build_snapshot('revid2', ['revid1'], [])
 
852
        self.builder.build_snapshot('revid3', ['revid2'], [])
 
853
        rev_set = ['revid3', 'revid2']
 
854
        self.assertParentIds(['revid1'], rev_set)
 
855
 
 
856
    def test_not_null(self):
 
857
        rev_set = ['initial']
 
858
        self.assertParentIds([], rev_set)
 
859
 
 
860
    def test_not_null_set(self):
 
861
        self.builder.build_snapshot('revid1', None, [])
 
862
        rev_set = [_mod_revision.NULL_REVISION]
 
863
        self.assertParentIds([], rev_set)
 
864
 
 
865
    def test_ghost(self):
 
866
        self.builder.build_snapshot('revid1', None, [])
 
867
        rev_set = ['ghost', 'revid1']
 
868
        self.assertParentIds(['initial'], rev_set)
 
869
 
 
870
    def test_ghost_parent(self):
 
871
        self.builder.build_snapshot('revid1', None, [])
 
872
        self.builder.build_snapshot('revid2', ['revid1', 'ghost'], [])
 
873
        rev_set = ['revid2', 'revid1']
 
874
        self.assertParentIds(['ghost', 'initial'], rev_set)
 
875
 
 
876
    def test_righthand_parent(self):
 
877
        self.builder.build_snapshot('revid1', None, [])
 
878
        self.builder.build_snapshot('revid2a', ['revid1'], [])
 
879
        self.builder.build_snapshot('revid2b', ['revid1'], [])
 
880
        self.builder.build_snapshot('revid3', ['revid2a', 'revid2b'], [])
 
881
        rev_set = ['revid3', 'revid2a']
 
882
        self.assertParentIds(['revid1', 'revid2b'], rev_set)
 
883
 
 
884
 
 
885
class TestWithBrokenRepo(TestCaseWithTransport):
 
886
    """These tests seem to be more appropriate as interface tests?"""
 
887
 
 
888
    def make_broken_repository(self):
 
889
        # XXX: This function is borrowed from Aaron's "Reconcile can fix bad
 
890
        # parent references" branch which is due to land in bzr.dev soon.  Once
 
891
        # it does, this duplication should be removed.
 
892
        repo = self.make_repository('broken-repo')
 
893
        cleanups = []
 
894
        try:
 
895
            repo.lock_write()
 
896
            cleanups.append(repo.unlock)
 
897
            repo.start_write_group()
 
898
            cleanups.append(repo.commit_write_group)
 
899
            # make rev1a: A well-formed revision, containing 'file1'
 
900
            inv = inventory.Inventory(revision_id='rev1a')
 
901
            inv.root.revision = 'rev1a'
 
902
            self.add_file(repo, inv, 'file1', 'rev1a', [])
 
903
            repo.texts.add_lines((inv.root.file_id, 'rev1a'), [], [])
 
904
            repo.add_inventory('rev1a', inv, [])
 
905
            revision = _mod_revision.Revision('rev1a',
 
906
                committer='jrandom@example.com', timestamp=0,
 
907
                inventory_sha1='', timezone=0, message='foo', parent_ids=[])
 
908
            repo.add_revision('rev1a', revision, inv)
 
909
 
 
910
            # make rev1b, which has no Revision, but has an Inventory, and
 
911
            # file1
 
912
            inv = inventory.Inventory(revision_id='rev1b')
 
913
            inv.root.revision = 'rev1b'
 
914
            self.add_file(repo, inv, 'file1', 'rev1b', [])
 
915
            repo.add_inventory('rev1b', inv, [])
 
916
 
 
917
            # make rev2, with file1 and file2
 
918
            # file2 is sane
 
919
            # file1 has 'rev1b' as an ancestor, even though this is not
 
920
            # mentioned by 'rev1a', making it an unreferenced ancestor
 
921
            inv = inventory.Inventory()
 
922
            self.add_file(repo, inv, 'file1', 'rev2', ['rev1a', 'rev1b'])
 
923
            self.add_file(repo, inv, 'file2', 'rev2', [])
 
924
            self.add_revision(repo, 'rev2', inv, ['rev1a'])
 
925
 
 
926
            # make ghost revision rev1c
 
927
            inv = inventory.Inventory()
 
928
            self.add_file(repo, inv, 'file2', 'rev1c', [])
 
929
 
 
930
            # make rev3 with file2
 
931
            # file2 refers to 'rev1c', which is a ghost in this repository, so
 
932
            # file2 cannot have rev1c as its ancestor.
 
933
            inv = inventory.Inventory()
 
934
            self.add_file(repo, inv, 'file2', 'rev3', ['rev1c'])
 
935
            self.add_revision(repo, 'rev3', inv, ['rev1c'])
 
936
            return repo
 
937
        finally:
 
938
            for cleanup in reversed(cleanups):
 
939
                cleanup()
 
940
 
 
941
    def add_revision(self, repo, revision_id, inv, parent_ids):
 
942
        inv.revision_id = revision_id
 
943
        inv.root.revision = revision_id
 
944
        repo.texts.add_lines((inv.root.file_id, revision_id), [], [])
 
945
        repo.add_inventory(revision_id, inv, parent_ids)
 
946
        revision = _mod_revision.Revision(revision_id,
 
947
            committer='jrandom@example.com', timestamp=0, inventory_sha1='',
 
948
            timezone=0, message='foo', parent_ids=parent_ids)
 
949
        repo.add_revision(revision_id, revision, inv)
 
950
 
 
951
    def add_file(self, repo, inv, filename, revision, parents):
 
952
        file_id = filename + '-id'
 
953
        entry = inventory.InventoryFile(file_id, filename, 'TREE_ROOT')
 
954
        entry.revision = revision
 
955
        entry.text_size = 0
 
956
        inv.add(entry)
 
957
        text_key = (file_id, revision)
 
958
        parent_keys = [(file_id, parent) for parent in parents]
 
959
        repo.texts.add_lines(text_key, parent_keys, ['line\n'])
 
960
 
 
961
    def test_insert_from_broken_repo(self):
 
962
        """Inserting a data stream from a broken repository won't silently
 
963
        corrupt the target repository.
 
964
        """
 
965
        broken_repo = self.make_broken_repository()
 
966
        empty_repo = self.make_repository('empty-repo')
 
967
        try:
 
968
            empty_repo.fetch(broken_repo)
 
969
        except (errors.RevisionNotPresent, errors.BzrCheckError):
 
970
            # Test successful: compression parent not being copied leads to
 
971
            # error.
 
972
            return
 
973
        empty_repo.lock_read()
 
974
        self.addCleanup(empty_repo.unlock)
 
975
        text = empty_repo.texts.get_record_stream(
 
976
            [('file2-id', 'rev3')], 'topological', True).next()
 
977
        self.assertEqual('line\n', text.get_bytes_as('fulltext'))
 
978
 
 
979
 
 
980
class TestRepositoryPackCollection(TestCaseWithTransport):
 
981
 
 
982
    def get_format(self):
 
983
        return bzrdir.format_registry.make_bzrdir('pack-0.92')
 
984
 
 
985
    def get_packs(self):
 
986
        format = self.get_format()
 
987
        repo = self.make_repository('.', format=format)
 
988
        return repo._pack_collection
 
989
 
 
990
    def make_packs_and_alt_repo(self, write_lock=False):
 
991
        """Create a pack repo with 3 packs, and access it via a second repo."""
 
992
        tree = self.make_branch_and_tree('.', format=self.get_format())
 
993
        tree.lock_write()
 
994
        self.addCleanup(tree.unlock)
 
995
        rev1 = tree.commit('one')
 
996
        rev2 = tree.commit('two')
 
997
        rev3 = tree.commit('three')
 
998
        r = repository.Repository.open('.')
 
999
        if write_lock:
 
1000
            r.lock_write()
 
1001
        else:
 
1002
            r.lock_read()
 
1003
        self.addCleanup(r.unlock)
 
1004
        packs = r._pack_collection
 
1005
        packs.ensure_loaded()
 
1006
        return tree, r, packs, [rev1, rev2, rev3]
 
1007
 
 
1008
    def test__clear_obsolete_packs(self):
 
1009
        packs = self.get_packs()
 
1010
        obsolete_pack_trans = packs.transport.clone('obsolete_packs')
 
1011
        obsolete_pack_trans.put_bytes('a-pack.pack', 'content\n')
 
1012
        obsolete_pack_trans.put_bytes('a-pack.rix', 'content\n')
 
1013
        obsolete_pack_trans.put_bytes('a-pack.iix', 'content\n')
 
1014
        obsolete_pack_trans.put_bytes('another-pack.pack', 'foo\n')
 
1015
        obsolete_pack_trans.put_bytes('not-a-pack.rix', 'foo\n')
 
1016
        res = packs._clear_obsolete_packs()
 
1017
        self.assertEqual(['a-pack', 'another-pack'], sorted(res))
 
1018
        self.assertEqual([], obsolete_pack_trans.list_dir('.'))
 
1019
 
 
1020
    def test__clear_obsolete_packs_preserve(self):
 
1021
        packs = self.get_packs()
 
1022
        obsolete_pack_trans = packs.transport.clone('obsolete_packs')
 
1023
        obsolete_pack_trans.put_bytes('a-pack.pack', 'content\n')
 
1024
        obsolete_pack_trans.put_bytes('a-pack.rix', 'content\n')
 
1025
        obsolete_pack_trans.put_bytes('a-pack.iix', 'content\n')
 
1026
        obsolete_pack_trans.put_bytes('another-pack.pack', 'foo\n')
 
1027
        obsolete_pack_trans.put_bytes('not-a-pack.rix', 'foo\n')
 
1028
        res = packs._clear_obsolete_packs(preserve=set(['a-pack']))
 
1029
        self.assertEqual(['a-pack', 'another-pack'], sorted(res))
 
1030
        self.assertEqual(['a-pack.iix', 'a-pack.pack', 'a-pack.rix'],
 
1031
                         sorted(obsolete_pack_trans.list_dir('.')))
 
1032
 
 
1033
    def test__max_pack_count(self):
 
1034
        """The maximum pack count is a function of the number of revisions."""
 
1035
        # no revisions - one pack, so that we can have a revision free repo
 
1036
        # without it blowing up
 
1037
        packs = self.get_packs()
 
1038
        self.assertEqual(1, packs._max_pack_count(0))
 
1039
        # after that the sum of the digits, - check the first 1-9
 
1040
        self.assertEqual(1, packs._max_pack_count(1))
 
1041
        self.assertEqual(2, packs._max_pack_count(2))
 
1042
        self.assertEqual(3, packs._max_pack_count(3))
 
1043
        self.assertEqual(4, packs._max_pack_count(4))
 
1044
        self.assertEqual(5, packs._max_pack_count(5))
 
1045
        self.assertEqual(6, packs._max_pack_count(6))
 
1046
        self.assertEqual(7, packs._max_pack_count(7))
 
1047
        self.assertEqual(8, packs._max_pack_count(8))
 
1048
        self.assertEqual(9, packs._max_pack_count(9))
 
1049
        # check the boundary cases with two digits for the next decade
 
1050
        self.assertEqual(1, packs._max_pack_count(10))
 
1051
        self.assertEqual(2, packs._max_pack_count(11))
 
1052
        self.assertEqual(10, packs._max_pack_count(19))
 
1053
        self.assertEqual(2, packs._max_pack_count(20))
 
1054
        self.assertEqual(3, packs._max_pack_count(21))
 
1055
        # check some arbitrary big numbers
 
1056
        self.assertEqual(25, packs._max_pack_count(112894))
 
1057
 
 
1058
    def test_repr(self):
 
1059
        packs = self.get_packs()
 
1060
        self.assertContainsRe(repr(packs),
 
1061
            'RepositoryPackCollection(.*Repository(.*))')
 
1062
 
 
1063
    def test__obsolete_packs(self):
 
1064
        tree, r, packs, revs = self.make_packs_and_alt_repo(write_lock=True)
 
1065
        names = packs.names()
 
1066
        pack = packs.get_pack_by_name(names[0])
 
1067
        # Schedule this one for removal
 
1068
        packs._remove_pack_from_memory(pack)
 
1069
        # Simulate a concurrent update by renaming the .pack file and one of
 
1070
        # the indices
 
1071
        packs.transport.rename('packs/%s.pack' % (names[0],),
 
1072
                               'obsolete_packs/%s.pack' % (names[0],))
 
1073
        packs.transport.rename('indices/%s.iix' % (names[0],),
 
1074
                               'obsolete_packs/%s.iix' % (names[0],))
 
1075
        # Now trigger the obsoletion, and ensure that all the remaining files
 
1076
        # are still renamed
 
1077
        packs._obsolete_packs([pack])
 
1078
        self.assertEqual([n + '.pack' for n in names[1:]],
 
1079
                         sorted(packs._pack_transport.list_dir('.')))
 
1080
        # names[0] should not be present in the index anymore
 
1081
        self.assertEqual(names[1:],
 
1082
            sorted(set([osutils.splitext(n)[0] for n in
 
1083
                        packs._index_transport.list_dir('.')])))
 
1084
 
 
1085
    def test__obsolete_packs_missing_directory(self):
 
1086
        tree, r, packs, revs = self.make_packs_and_alt_repo(write_lock=True)
 
1087
        r.control_transport.rmdir('obsolete_packs')
 
1088
        names = packs.names()
 
1089
        pack = packs.get_pack_by_name(names[0])
 
1090
        # Schedule this one for removal
 
1091
        packs._remove_pack_from_memory(pack)
 
1092
        # Now trigger the obsoletion, and ensure that all the remaining files
 
1093
        # are still renamed
 
1094
        packs._obsolete_packs([pack])
 
1095
        self.assertEqual([n + '.pack' for n in names[1:]],
 
1096
                         sorted(packs._pack_transport.list_dir('.')))
 
1097
        # names[0] should not be present in the index anymore
 
1098
        self.assertEqual(names[1:],
 
1099
            sorted(set([osutils.splitext(n)[0] for n in
 
1100
                        packs._index_transport.list_dir('.')])))
 
1101
 
 
1102
    def test_pack_distribution_zero(self):
 
1103
        packs = self.get_packs()
 
1104
        self.assertEqual([0], packs.pack_distribution(0))
 
1105
 
 
1106
    def test_ensure_loaded_unlocked(self):
 
1107
        packs = self.get_packs()
 
1108
        self.assertRaises(errors.ObjectNotLocked,
 
1109
                          packs.ensure_loaded)
 
1110
 
 
1111
    def test_pack_distribution_one_to_nine(self):
 
1112
        packs = self.get_packs()
 
1113
        self.assertEqual([1],
 
1114
            packs.pack_distribution(1))
 
1115
        self.assertEqual([1, 1],
 
1116
            packs.pack_distribution(2))
 
1117
        self.assertEqual([1, 1, 1],
 
1118
            packs.pack_distribution(3))
 
1119
        self.assertEqual([1, 1, 1, 1],
 
1120
            packs.pack_distribution(4))
 
1121
        self.assertEqual([1, 1, 1, 1, 1],
 
1122
            packs.pack_distribution(5))
 
1123
        self.assertEqual([1, 1, 1, 1, 1, 1],
 
1124
            packs.pack_distribution(6))
 
1125
        self.assertEqual([1, 1, 1, 1, 1, 1, 1],
 
1126
            packs.pack_distribution(7))
 
1127
        self.assertEqual([1, 1, 1, 1, 1, 1, 1, 1],
 
1128
            packs.pack_distribution(8))
 
1129
        self.assertEqual([1, 1, 1, 1, 1, 1, 1, 1, 1],
 
1130
            packs.pack_distribution(9))
 
1131
 
 
1132
    def test_pack_distribution_stable_at_boundaries(self):
 
1133
        """When there are multi-rev packs the counts are stable."""
 
1134
        packs = self.get_packs()
 
1135
        # in 10s:
 
1136
        self.assertEqual([10], packs.pack_distribution(10))
 
1137
        self.assertEqual([10, 1], packs.pack_distribution(11))
 
1138
        self.assertEqual([10, 10], packs.pack_distribution(20))
 
1139
        self.assertEqual([10, 10, 1], packs.pack_distribution(21))
 
1140
        # 100s
 
1141
        self.assertEqual([100], packs.pack_distribution(100))
 
1142
        self.assertEqual([100, 1], packs.pack_distribution(101))
 
1143
        self.assertEqual([100, 10, 1], packs.pack_distribution(111))
 
1144
        self.assertEqual([100, 100], packs.pack_distribution(200))
 
1145
        self.assertEqual([100, 100, 1], packs.pack_distribution(201))
 
1146
        self.assertEqual([100, 100, 10, 1], packs.pack_distribution(211))
 
1147
 
 
1148
    def test_plan_pack_operations_2009_revisions_skip_all_packs(self):
 
1149
        packs = self.get_packs()
 
1150
        existing_packs = [(2000, "big"), (9, "medium")]
 
1151
        # rev count - 2009 -> 2x1000 + 9x1
 
1152
        pack_operations = packs.plan_autopack_combinations(
 
1153
            existing_packs, [1000, 1000, 1, 1, 1, 1, 1, 1, 1, 1, 1])
 
1154
        self.assertEqual([], pack_operations)
 
1155
 
 
1156
    def test_plan_pack_operations_2010_revisions_skip_all_packs(self):
 
1157
        packs = self.get_packs()
 
1158
        existing_packs = [(2000, "big"), (9, "medium"), (1, "single")]
 
1159
        # rev count - 2010 -> 2x1000 + 1x10
 
1160
        pack_operations = packs.plan_autopack_combinations(
 
1161
            existing_packs, [1000, 1000, 10])
 
1162
        self.assertEqual([], pack_operations)
 
1163
 
 
1164
    def test_plan_pack_operations_2010_combines_smallest_two(self):
 
1165
        packs = self.get_packs()
 
1166
        existing_packs = [(1999, "big"), (9, "medium"), (1, "single2"),
 
1167
            (1, "single1")]
 
1168
        # rev count - 2010 -> 2x1000 + 1x10 (3)
 
1169
        pack_operations = packs.plan_autopack_combinations(
 
1170
            existing_packs, [1000, 1000, 10])
 
1171
        self.assertEqual([[2, ["single2", "single1"]]], pack_operations)
 
1172
 
 
1173
    def test_plan_pack_operations_creates_a_single_op(self):
 
1174
        packs = self.get_packs()
 
1175
        existing_packs = [(50, 'a'), (40, 'b'), (30, 'c'), (10, 'd'),
 
1176
                          (10, 'e'), (6, 'f'), (4, 'g')]
 
1177
        # rev count 150 -> 1x100 and 5x10
 
1178
        # The two size 10 packs do not need to be touched. The 50, 40, 30 would
 
1179
        # be combined into a single 120 size pack, and the 6 & 4 would
 
1180
        # becombined into a size 10 pack. However, if we have to rewrite them,
 
1181
        # we save a pack file with no increased I/O by putting them into the
 
1182
        # same file.
 
1183
        distribution = packs.pack_distribution(150)
 
1184
        pack_operations = packs.plan_autopack_combinations(existing_packs,
 
1185
                                                           distribution)
 
1186
        self.assertEqual([[130, ['a', 'b', 'c', 'f', 'g']]], pack_operations)
 
1187
 
 
1188
    def test_all_packs_none(self):
 
1189
        format = self.get_format()
 
1190
        tree = self.make_branch_and_tree('.', format=format)
 
1191
        tree.lock_read()
 
1192
        self.addCleanup(tree.unlock)
 
1193
        packs = tree.branch.repository._pack_collection
 
1194
        packs.ensure_loaded()
 
1195
        self.assertEqual([], packs.all_packs())
 
1196
 
 
1197
    def test_all_packs_one(self):
 
1198
        format = self.get_format()
 
1199
        tree = self.make_branch_and_tree('.', format=format)
 
1200
        tree.commit('start')
 
1201
        tree.lock_read()
 
1202
        self.addCleanup(tree.unlock)
 
1203
        packs = tree.branch.repository._pack_collection
 
1204
        packs.ensure_loaded()
 
1205
        self.assertEqual([
 
1206
            packs.get_pack_by_name(packs.names()[0])],
 
1207
            packs.all_packs())
 
1208
 
 
1209
    def test_all_packs_two(self):
 
1210
        format = self.get_format()
 
1211
        tree = self.make_branch_and_tree('.', format=format)
 
1212
        tree.commit('start')
 
1213
        tree.commit('continue')
 
1214
        tree.lock_read()
 
1215
        self.addCleanup(tree.unlock)
 
1216
        packs = tree.branch.repository._pack_collection
 
1217
        packs.ensure_loaded()
 
1218
        self.assertEqual([
 
1219
            packs.get_pack_by_name(packs.names()[0]),
 
1220
            packs.get_pack_by_name(packs.names()[1]),
 
1221
            ], packs.all_packs())
 
1222
 
 
1223
    def test_get_pack_by_name(self):
 
1224
        format = self.get_format()
 
1225
        tree = self.make_branch_and_tree('.', format=format)
 
1226
        tree.commit('start')
 
1227
        tree.lock_read()
 
1228
        self.addCleanup(tree.unlock)
 
1229
        packs = tree.branch.repository._pack_collection
 
1230
        packs.reset()
 
1231
        packs.ensure_loaded()
 
1232
        name = packs.names()[0]
 
1233
        pack_1 = packs.get_pack_by_name(name)
 
1234
        # the pack should be correctly initialised
 
1235
        sizes = packs._names[name]
 
1236
        rev_index = GraphIndex(packs._index_transport, name + '.rix', sizes[0])
 
1237
        inv_index = GraphIndex(packs._index_transport, name + '.iix', sizes[1])
 
1238
        txt_index = GraphIndex(packs._index_transport, name + '.tix', sizes[2])
 
1239
        sig_index = GraphIndex(packs._index_transport, name + '.six', sizes[3])
 
1240
        self.assertEqual(pack_repo.ExistingPack(packs._pack_transport,
 
1241
            name, rev_index, inv_index, txt_index, sig_index), pack_1)
 
1242
        # and the same instance should be returned on successive calls.
 
1243
        self.assertTrue(pack_1 is packs.get_pack_by_name(name))
 
1244
 
 
1245
    def test_reload_pack_names_new_entry(self):
 
1246
        tree, r, packs, revs = self.make_packs_and_alt_repo()
 
1247
        names = packs.names()
 
1248
        # Add a new pack file into the repository
 
1249
        rev4 = tree.commit('four')
 
1250
        new_names = tree.branch.repository._pack_collection.names()
 
1251
        new_name = set(new_names).difference(names)
 
1252
        self.assertEqual(1, len(new_name))
 
1253
        new_name = new_name.pop()
 
1254
        # The old collection hasn't noticed yet
 
1255
        self.assertEqual(names, packs.names())
 
1256
        self.assertTrue(packs.reload_pack_names())
 
1257
        self.assertEqual(new_names, packs.names())
 
1258
        # And the repository can access the new revision
 
1259
        self.assertEqual({rev4:(revs[-1],)}, r.get_parent_map([rev4]))
 
1260
        self.assertFalse(packs.reload_pack_names())
 
1261
 
 
1262
    def test_reload_pack_names_added_and_removed(self):
 
1263
        tree, r, packs, revs = self.make_packs_and_alt_repo()
 
1264
        names = packs.names()
 
1265
        # Now repack the whole thing
 
1266
        tree.branch.repository.pack()
 
1267
        new_names = tree.branch.repository._pack_collection.names()
 
1268
        # The other collection hasn't noticed yet
 
1269
        self.assertEqual(names, packs.names())
 
1270
        self.assertTrue(packs.reload_pack_names())
 
1271
        self.assertEqual(new_names, packs.names())
 
1272
        self.assertEqual({revs[-1]:(revs[-2],)}, r.get_parent_map([revs[-1]]))
 
1273
        self.assertFalse(packs.reload_pack_names())
 
1274
 
 
1275
    def test_reload_pack_names_preserves_pending(self):
 
1276
        # TODO: Update this to also test for pending-deleted names
 
1277
        tree, r, packs, revs = self.make_packs_and_alt_repo(write_lock=True)
 
1278
        # We will add one pack (via start_write_group + insert_record_stream),
 
1279
        # and remove another pack (via _remove_pack_from_memory)
 
1280
        orig_names = packs.names()
 
1281
        orig_at_load = packs._packs_at_load
 
1282
        to_remove_name = iter(orig_names).next()
 
1283
        r.start_write_group()
 
1284
        self.addCleanup(r.abort_write_group)
 
1285
        r.texts.insert_record_stream([versionedfile.FulltextContentFactory(
 
1286
            ('text', 'rev'), (), None, 'content\n')])
 
1287
        new_pack = packs._new_pack
 
1288
        self.assertTrue(new_pack.data_inserted())
 
1289
        new_pack.finish()
 
1290
        packs.allocate(new_pack)
 
1291
        packs._new_pack = None
 
1292
        removed_pack = packs.get_pack_by_name(to_remove_name)
 
1293
        packs._remove_pack_from_memory(removed_pack)
 
1294
        names = packs.names()
 
1295
        all_nodes, deleted_nodes, new_nodes, _ = packs._diff_pack_names()
 
1296
        new_names = set([x[0][0] for x in new_nodes])
 
1297
        self.assertEqual(names, sorted([x[0][0] for x in all_nodes]))
 
1298
        self.assertEqual(set(names) - set(orig_names), new_names)
 
1299
        self.assertEqual(set([new_pack.name]), new_names)
 
1300
        self.assertEqual([to_remove_name],
 
1301
                         sorted([x[0][0] for x in deleted_nodes]))
 
1302
        packs.reload_pack_names()
 
1303
        reloaded_names = packs.names()
 
1304
        self.assertEqual(orig_at_load, packs._packs_at_load)
 
1305
        self.assertEqual(names, reloaded_names)
 
1306
        all_nodes, deleted_nodes, new_nodes, _ = packs._diff_pack_names()
 
1307
        new_names = set([x[0][0] for x in new_nodes])
 
1308
        self.assertEqual(names, sorted([x[0][0] for x in all_nodes]))
 
1309
        self.assertEqual(set(names) - set(orig_names), new_names)
 
1310
        self.assertEqual(set([new_pack.name]), new_names)
 
1311
        self.assertEqual([to_remove_name],
 
1312
                         sorted([x[0][0] for x in deleted_nodes]))
 
1313
 
 
1314
    def test_autopack_obsoletes_new_pack(self):
 
1315
        tree, r, packs, revs = self.make_packs_and_alt_repo(write_lock=True)
 
1316
        packs._max_pack_count = lambda x: 1
 
1317
        packs.pack_distribution = lambda x: [10]
 
1318
        r.start_write_group()
 
1319
        r.revisions.insert_record_stream([versionedfile.FulltextContentFactory(
 
1320
            ('bogus-rev',), (), None, 'bogus-content\n')])
 
1321
        # This should trigger an autopack, which will combine everything into a
 
1322
        # single pack file.
 
1323
        new_names = r.commit_write_group()
 
1324
        names = packs.names()
 
1325
        self.assertEqual(1, len(names))
 
1326
        self.assertEqual([names[0] + '.pack'],
 
1327
                         packs._pack_transport.list_dir('.'))
 
1328
 
 
1329
    def test_autopack_reloads_and_stops(self):
 
1330
        tree, r, packs, revs = self.make_packs_and_alt_repo(write_lock=True)
 
1331
        # After we have determined what needs to be autopacked, trigger a
 
1332
        # full-pack via the other repo which will cause us to re-evaluate and
 
1333
        # decide we don't need to do anything
 
1334
        orig_execute = packs._execute_pack_operations
 
1335
        def _munged_execute_pack_ops(*args, **kwargs):
 
1336
            tree.branch.repository.pack()
 
1337
            return orig_execute(*args, **kwargs)
 
1338
        packs._execute_pack_operations = _munged_execute_pack_ops
 
1339
        packs._max_pack_count = lambda x: 1
 
1340
        packs.pack_distribution = lambda x: [10]
 
1341
        self.assertFalse(packs.autopack())
 
1342
        self.assertEqual(1, len(packs.names()))
 
1343
        self.assertEqual(tree.branch.repository._pack_collection.names(),
 
1344
                         packs.names())
 
1345
 
 
1346
    def test__save_pack_names(self):
 
1347
        tree, r, packs, revs = self.make_packs_and_alt_repo(write_lock=True)
 
1348
        names = packs.names()
 
1349
        pack = packs.get_pack_by_name(names[0])
 
1350
        packs._remove_pack_from_memory(pack)
 
1351
        packs._save_pack_names(obsolete_packs=[pack])
 
1352
        cur_packs = packs._pack_transport.list_dir('.')
 
1353
        self.assertEqual([n + '.pack' for n in names[1:]], sorted(cur_packs))
 
1354
        # obsolete_packs will also have stuff like .rix and .iix present.
 
1355
        obsolete_packs = packs.transport.list_dir('obsolete_packs')
 
1356
        obsolete_names = set([osutils.splitext(n)[0] for n in obsolete_packs])
 
1357
        self.assertEqual([pack.name], sorted(obsolete_names))
 
1358
 
 
1359
    def test__save_pack_names_already_obsoleted(self):
 
1360
        tree, r, packs, revs = self.make_packs_and_alt_repo(write_lock=True)
 
1361
        names = packs.names()
 
1362
        pack = packs.get_pack_by_name(names[0])
 
1363
        packs._remove_pack_from_memory(pack)
 
1364
        # We are going to simulate a concurrent autopack by manually obsoleting
 
1365
        # the pack directly.
 
1366
        packs._obsolete_packs([pack])
 
1367
        packs._save_pack_names(clear_obsolete_packs=True,
 
1368
                               obsolete_packs=[pack])
 
1369
        cur_packs = packs._pack_transport.list_dir('.')
 
1370
        self.assertEqual([n + '.pack' for n in names[1:]], sorted(cur_packs))
 
1371
        # Note that while we set clear_obsolete_packs=True, it should not
 
1372
        # delete a pack file that we have also scheduled for obsoletion.
 
1373
        obsolete_packs = packs.transport.list_dir('obsolete_packs')
 
1374
        obsolete_names = set([osutils.splitext(n)[0] for n in obsolete_packs])
 
1375
        self.assertEqual([pack.name], sorted(obsolete_names))
 
1376
 
 
1377
    def test_pack_no_obsolete_packs_directory(self):
 
1378
        """Bug #314314, don't fail if obsolete_packs directory does
 
1379
        not exist."""
 
1380
        tree, r, packs, revs = self.make_packs_and_alt_repo(write_lock=True)
 
1381
        r.control_transport.rmdir('obsolete_packs')
 
1382
        packs._clear_obsolete_packs()
 
1383
 
 
1384
 
 
1385
class TestPack(TestCaseWithTransport):
 
1386
    """Tests for the Pack object."""
 
1387
 
 
1388
    def assertCurrentlyEqual(self, left, right):
 
1389
        self.assertTrue(left == right)
 
1390
        self.assertTrue(right == left)
 
1391
        self.assertFalse(left != right)
 
1392
        self.assertFalse(right != left)
 
1393
 
 
1394
    def assertCurrentlyNotEqual(self, left, right):
 
1395
        self.assertFalse(left == right)
 
1396
        self.assertFalse(right == left)
 
1397
        self.assertTrue(left != right)
 
1398
        self.assertTrue(right != left)
 
1399
 
 
1400
    def test___eq____ne__(self):
 
1401
        left = pack_repo.ExistingPack('', '', '', '', '', '')
 
1402
        right = pack_repo.ExistingPack('', '', '', '', '', '')
 
1403
        self.assertCurrentlyEqual(left, right)
 
1404
        # change all attributes and ensure equality changes as we do.
 
1405
        left.revision_index = 'a'
 
1406
        self.assertCurrentlyNotEqual(left, right)
 
1407
        right.revision_index = 'a'
 
1408
        self.assertCurrentlyEqual(left, right)
 
1409
        left.inventory_index = 'a'
 
1410
        self.assertCurrentlyNotEqual(left, right)
 
1411
        right.inventory_index = 'a'
 
1412
        self.assertCurrentlyEqual(left, right)
 
1413
        left.text_index = 'a'
 
1414
        self.assertCurrentlyNotEqual(left, right)
 
1415
        right.text_index = 'a'
 
1416
        self.assertCurrentlyEqual(left, right)
 
1417
        left.signature_index = 'a'
 
1418
        self.assertCurrentlyNotEqual(left, right)
 
1419
        right.signature_index = 'a'
 
1420
        self.assertCurrentlyEqual(left, right)
 
1421
        left.name = 'a'
 
1422
        self.assertCurrentlyNotEqual(left, right)
 
1423
        right.name = 'a'
 
1424
        self.assertCurrentlyEqual(left, right)
 
1425
        left.transport = 'a'
 
1426
        self.assertCurrentlyNotEqual(left, right)
 
1427
        right.transport = 'a'
 
1428
        self.assertCurrentlyEqual(left, right)
 
1429
 
 
1430
    def test_file_name(self):
 
1431
        pack = pack_repo.ExistingPack('', 'a_name', '', '', '', '')
 
1432
        self.assertEqual('a_name.pack', pack.file_name())
 
1433
 
 
1434
 
 
1435
class TestNewPack(TestCaseWithTransport):
 
1436
    """Tests for pack_repo.NewPack."""
 
1437
 
 
1438
    def test_new_instance_attributes(self):
 
1439
        upload_transport = self.get_transport('upload')
 
1440
        pack_transport = self.get_transport('pack')
 
1441
        index_transport = self.get_transport('index')
 
1442
        upload_transport.mkdir('.')
 
1443
        collection = pack_repo.RepositoryPackCollection(
 
1444
            repo=None,
 
1445
            transport=self.get_transport('.'),
 
1446
            index_transport=index_transport,
 
1447
            upload_transport=upload_transport,
 
1448
            pack_transport=pack_transport,
 
1449
            index_builder_class=BTreeBuilder,
 
1450
            index_class=BTreeGraphIndex,
 
1451
            use_chk_index=False)
 
1452
        pack = pack_repo.NewPack(collection)
 
1453
        self.addCleanup(pack.abort) # Make sure the write stream gets closed
 
1454
        self.assertIsInstance(pack.revision_index, BTreeBuilder)
 
1455
        self.assertIsInstance(pack.inventory_index, BTreeBuilder)
 
1456
        self.assertIsInstance(pack._hash, type(osutils.md5()))
 
1457
        self.assertTrue(pack.upload_transport is upload_transport)
 
1458
        self.assertTrue(pack.index_transport is index_transport)
 
1459
        self.assertTrue(pack.pack_transport is pack_transport)
 
1460
        self.assertEqual(None, pack.index_sizes)
 
1461
        self.assertEqual(20, len(pack.random_name))
 
1462
        self.assertIsInstance(pack.random_name, str)
 
1463
        self.assertIsInstance(pack.start_time, float)
 
1464
 
 
1465
 
 
1466
class TestPacker(TestCaseWithTransport):
 
1467
    """Tests for the packs repository Packer class."""
 
1468
 
 
1469
    def test_pack_optimizes_pack_order(self):
 
1470
        builder = self.make_branch_builder('.', format="1.9")
 
1471
        builder.start_series()
 
1472
        builder.build_snapshot('A', None, [
 
1473
            ('add', ('', 'root-id', 'directory', None)),
 
1474
            ('add', ('f', 'f-id', 'file', 'content\n'))])
 
1475
        builder.build_snapshot('B', ['A'],
 
1476
            [('modify', ('f-id', 'new-content\n'))])
 
1477
        builder.build_snapshot('C', ['B'],
 
1478
            [('modify', ('f-id', 'third-content\n'))])
 
1479
        builder.build_snapshot('D', ['C'],
 
1480
            [('modify', ('f-id', 'fourth-content\n'))])
 
1481
        b = builder.get_branch()
 
1482
        b.lock_read()
 
1483
        builder.finish_series()
 
1484
        self.addCleanup(b.unlock)
 
1485
        # At this point, we should have 4 pack files available
 
1486
        # Because of how they were built, they correspond to
 
1487
        # ['D', 'C', 'B', 'A']
 
1488
        packs = b.repository._pack_collection.packs
 
1489
        packer = knitpack_repo.KnitPacker(b.repository._pack_collection,
 
1490
                                  packs, 'testing',
 
1491
                                  revision_ids=['B', 'C'])
 
1492
        # Now, when we are copying the B & C revisions, their pack files should
 
1493
        # be moved to the front of the stack
 
1494
        # The new ordering moves B & C to the front of the .packs attribute,
 
1495
        # and leaves the others in the original order.
 
1496
        new_packs = [packs[1], packs[2], packs[0], packs[3]]
 
1497
        new_pack = packer.pack()
 
1498
        self.assertEqual(new_packs, packer.packs)
 
1499
 
 
1500
 
 
1501
class TestOptimisingPacker(TestCaseWithTransport):
 
1502
    """Tests for the OptimisingPacker class."""
 
1503
 
 
1504
    def get_pack_collection(self):
 
1505
        repo = self.make_repository('.')
 
1506
        return repo._pack_collection
 
1507
 
 
1508
    def test_open_pack_will_optimise(self):
 
1509
        packer = knitpack_repo.OptimisingKnitPacker(self.get_pack_collection(),
 
1510
                                            [], '.test')
 
1511
        new_pack = packer.open_pack()
 
1512
        self.addCleanup(new_pack.abort) # ensure cleanup
 
1513
        self.assertIsInstance(new_pack, pack_repo.NewPack)
 
1514
        self.assertTrue(new_pack.revision_index._optimize_for_size)
 
1515
        self.assertTrue(new_pack.inventory_index._optimize_for_size)
 
1516
        self.assertTrue(new_pack.text_index._optimize_for_size)
 
1517
        self.assertTrue(new_pack.signature_index._optimize_for_size)
 
1518
 
 
1519
 
 
1520
class TestGCCHKPacker(TestCaseWithTransport):
 
1521
 
 
1522
    def make_abc_branch(self):
 
1523
        builder = self.make_branch_builder('source')
 
1524
        builder.start_series()
 
1525
        builder.build_snapshot('A', None, [
 
1526
            ('add', ('', 'root-id', 'directory', None)),
 
1527
            ('add', ('file', 'file-id', 'file', 'content\n')),
 
1528
            ])
 
1529
        builder.build_snapshot('B', ['A'], [
 
1530
            ('add', ('dir', 'dir-id', 'directory', None))])
 
1531
        builder.build_snapshot('C', ['B'], [
 
1532
            ('modify', ('file-id', 'new content\n'))])
 
1533
        builder.finish_series()
 
1534
        return builder.get_branch()
 
1535
 
 
1536
    def make_branch_with_disjoint_inventory_and_revision(self):
 
1537
        """a repo with separate packs for a revisions Revision and Inventory.
 
1538
 
 
1539
        There will be one pack file that holds the Revision content, and one
 
1540
        for the Inventory content.
 
1541
 
 
1542
        :return: (repository,
 
1543
                  pack_name_with_rev_A_Revision,
 
1544
                  pack_name_with_rev_A_Inventory,
 
1545
                  pack_name_with_rev_C_content)
 
1546
        """
 
1547
        b_source = self.make_abc_branch()
 
1548
        b_base = b_source.bzrdir.sprout('base', revision_id='A').open_branch()
 
1549
        b_stacked = b_base.bzrdir.sprout('stacked', stacked=True).open_branch()
 
1550
        b_stacked.lock_write()
 
1551
        self.addCleanup(b_stacked.unlock)
 
1552
        b_stacked.fetch(b_source, 'B')
 
1553
        # Now re-open the stacked repo directly (no fallbacks) so that we can
 
1554
        # fill in the A rev.
 
1555
        repo_not_stacked = b_stacked.bzrdir.open_repository()
 
1556
        repo_not_stacked.lock_write()
 
1557
        self.addCleanup(repo_not_stacked.unlock)
 
1558
        # Now we should have a pack file with A's inventory, but not its
 
1559
        # Revision
 
1560
        self.assertEqual([('A',), ('B',)],
 
1561
                         sorted(repo_not_stacked.inventories.keys()))
 
1562
        self.assertEqual([('B',)],
 
1563
                         sorted(repo_not_stacked.revisions.keys()))
 
1564
        stacked_pack_names = repo_not_stacked._pack_collection.names()
 
1565
        # We have a couple names here, figure out which has A's inventory
 
1566
        for name in stacked_pack_names:
 
1567
            pack = repo_not_stacked._pack_collection.get_pack_by_name(name)
 
1568
            keys = [n[1] for n in pack.inventory_index.iter_all_entries()]
 
1569
            if ('A',) in keys:
 
1570
                inv_a_pack_name = name
 
1571
                break
 
1572
        else:
 
1573
            self.fail('Could not find pack containing A\'s inventory')
 
1574
        repo_not_stacked.fetch(b_source.repository, 'A')
 
1575
        self.assertEqual([('A',), ('B',)],
 
1576
                         sorted(repo_not_stacked.revisions.keys()))
 
1577
        new_pack_names = set(repo_not_stacked._pack_collection.names())
 
1578
        rev_a_pack_names = new_pack_names.difference(stacked_pack_names)
 
1579
        self.assertEqual(1, len(rev_a_pack_names))
 
1580
        rev_a_pack_name = list(rev_a_pack_names)[0]
 
1581
        # Now fetch 'C', so we have a couple pack files to join
 
1582
        repo_not_stacked.fetch(b_source.repository, 'C')
 
1583
        rev_c_pack_names = set(repo_not_stacked._pack_collection.names())
 
1584
        rev_c_pack_names = rev_c_pack_names.difference(new_pack_names)
 
1585
        self.assertEqual(1, len(rev_c_pack_names))
 
1586
        rev_c_pack_name = list(rev_c_pack_names)[0]
 
1587
        return (repo_not_stacked, rev_a_pack_name, inv_a_pack_name,
 
1588
                rev_c_pack_name)
 
1589
 
 
1590
    def test_pack_with_distant_inventories(self):
 
1591
        # See https://bugs.launchpad.net/bzr/+bug/437003
 
1592
        # When repacking, it is possible to have an inventory in a different
 
1593
        # pack file than the associated revision. An autopack can then come
 
1594
        # along, and miss that inventory, and complain.
 
1595
        (repo, rev_a_pack_name, inv_a_pack_name, rev_c_pack_name
 
1596
         ) = self.make_branch_with_disjoint_inventory_and_revision()
 
1597
        a_pack = repo._pack_collection.get_pack_by_name(rev_a_pack_name)
 
1598
        c_pack = repo._pack_collection.get_pack_by_name(rev_c_pack_name)
 
1599
        packer = groupcompress_repo.GCCHKPacker(repo._pack_collection,
 
1600
                    [a_pack, c_pack], '.test-pack')
 
1601
        # This would raise ValueError in bug #437003, but should not raise an
 
1602
        # error once fixed.
 
1603
        packer.pack()
 
1604
 
 
1605
    def test_pack_with_missing_inventory(self):
 
1606
        # Similar to test_pack_with_missing_inventory, but this time, we force
 
1607
        # the A inventory to actually be gone from the repository.
 
1608
        (repo, rev_a_pack_name, inv_a_pack_name, rev_c_pack_name
 
1609
         ) = self.make_branch_with_disjoint_inventory_and_revision()
 
1610
        inv_a_pack = repo._pack_collection.get_pack_by_name(inv_a_pack_name)
 
1611
        repo._pack_collection._remove_pack_from_memory(inv_a_pack)
 
1612
        packer = groupcompress_repo.GCCHKPacker(repo._pack_collection,
 
1613
            repo._pack_collection.all_packs(), '.test-pack')
 
1614
        e = self.assertRaises(ValueError, packer.pack)
 
1615
        packer.new_pack.abort()
 
1616
        self.assertContainsRe(str(e),
 
1617
            r"We are missing inventories for revisions: .*'A'")
 
1618
 
 
1619
 
 
1620
class TestCrossFormatPacks(TestCaseWithTransport):
 
1621
 
 
1622
    def log_pack(self, hint=None):
 
1623
        self.calls.append(('pack', hint))
 
1624
        self.orig_pack(hint=hint)
 
1625
        if self.expect_hint:
 
1626
            self.assertTrue(hint)
 
1627
 
 
1628
    def run_stream(self, src_fmt, target_fmt, expect_pack_called):
 
1629
        self.expect_hint = expect_pack_called
 
1630
        self.calls = []
 
1631
        source_tree = self.make_branch_and_tree('src', format=src_fmt)
 
1632
        source_tree.lock_write()
 
1633
        self.addCleanup(source_tree.unlock)
 
1634
        tip = source_tree.commit('foo')
 
1635
        target = self.make_repository('target', format=target_fmt)
 
1636
        target.lock_write()
 
1637
        self.addCleanup(target.unlock)
 
1638
        source = source_tree.branch.repository._get_source(target._format)
 
1639
        self.orig_pack = target.pack
 
1640
        self.overrideAttr(target, "pack", self.log_pack)
 
1641
        search = target.search_missing_revision_ids(
 
1642
            source_tree.branch.repository, revision_ids=[tip])
 
1643
        stream = source.get_stream(search)
 
1644
        from_format = source_tree.branch.repository._format
 
1645
        sink = target._get_sink()
 
1646
        sink.insert_stream(stream, from_format, [])
 
1647
        if expect_pack_called:
 
1648
            self.assertLength(1, self.calls)
 
1649
        else:
 
1650
            self.assertLength(0, self.calls)
 
1651
 
 
1652
    def run_fetch(self, src_fmt, target_fmt, expect_pack_called):
 
1653
        self.expect_hint = expect_pack_called
 
1654
        self.calls = []
 
1655
        source_tree = self.make_branch_and_tree('src', format=src_fmt)
 
1656
        source_tree.lock_write()
 
1657
        self.addCleanup(source_tree.unlock)
 
1658
        tip = source_tree.commit('foo')
 
1659
        target = self.make_repository('target', format=target_fmt)
 
1660
        target.lock_write()
 
1661
        self.addCleanup(target.unlock)
 
1662
        source = source_tree.branch.repository
 
1663
        self.orig_pack = target.pack
 
1664
        self.overrideAttr(target, "pack", self.log_pack)
 
1665
        target.fetch(source)
 
1666
        if expect_pack_called:
 
1667
            self.assertLength(1, self.calls)
 
1668
        else:
 
1669
            self.assertLength(0, self.calls)
 
1670
 
 
1671
    def test_sink_format_hint_no(self):
 
1672
        # When the target format says packing makes no difference, pack is not
 
1673
        # called.
 
1674
        self.run_stream('1.9', 'rich-root-pack', False)
 
1675
 
 
1676
    def test_sink_format_hint_yes(self):
 
1677
        # When the target format says packing makes a difference, pack is
 
1678
        # called.
 
1679
        self.run_stream('1.9', '2a', True)
 
1680
 
 
1681
    def test_sink_format_same_no(self):
 
1682
        # When the formats are the same, pack is not called.
 
1683
        self.run_stream('2a', '2a', False)
 
1684
 
 
1685
    def test_IDS_format_hint_no(self):
 
1686
        # When the target format says packing makes no difference, pack is not
 
1687
        # called.
 
1688
        self.run_fetch('1.9', 'rich-root-pack', False)
 
1689
 
 
1690
    def test_IDS_format_hint_yes(self):
 
1691
        # When the target format says packing makes a difference, pack is
 
1692
        # called.
 
1693
        self.run_fetch('1.9', '2a', True)
 
1694
 
 
1695
    def test_IDS_format_same_no(self):
 
1696
        # When the formats are the same, pack is not called.
 
1697
        self.run_fetch('2a', '2a', False)
 
1698
 
 
1699
 
 
1700
class Test_LazyListJoin(tests.TestCase):
 
1701
 
 
1702
    def test__repr__(self):
 
1703
        lazy = repository._LazyListJoin(['a'], ['b'])
 
1704
        self.assertEqual("bzrlib.repository._LazyListJoin((['a'], ['b']))",
 
1705
                         repr(lazy))