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1
# Copyright (C) 2006, 2007, 2008 Canonical Ltd
 
2
#
 
3
# This program is free software; you can redistribute it and/or modify
 
4
# it under the terms of the GNU General Public License as published by
 
5
# the Free Software Foundation; either version 2 of the License, or
 
6
# (at your option) any later version.
 
7
#
 
8
# This program is distributed in the hope that it will be useful,
 
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
11
# GNU General Public License for more details.
 
12
#
 
13
# You should have received a copy of the GNU General Public License
 
14
# along with this program; if not, write to the Free Software
 
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
16
 
 
17
"""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
import md5
 
26
from stat import S_ISDIR
 
27
from StringIO import StringIO
 
28
 
 
29
import bzrlib
 
30
from bzrlib.errors import (NotBranchError,
 
31
                           NoSuchFile,
 
32
                           UnknownFormatError,
 
33
                           UnsupportedFormatError,
 
34
                           )
 
35
from bzrlib import graph
 
36
from bzrlib.index import GraphIndex, InMemoryGraphIndex
 
37
from bzrlib.repository import RepositoryFormat
 
38
from bzrlib.smart import server
 
39
from bzrlib.tests import (
 
40
    TestCase,
 
41
    TestCaseWithTransport,
 
42
    TestSkipped,
 
43
    test_knit,
 
44
    )
 
45
from bzrlib.transport import (
 
46
    fakenfs,
 
47
    get_transport,
 
48
    )
 
49
from bzrlib.transport.memory import MemoryServer
 
50
from bzrlib.util import bencode
 
51
from bzrlib import (
 
52
    bzrdir,
 
53
    errors,
 
54
    inventory,
 
55
    progress,
 
56
    repository,
 
57
    revision as _mod_revision,
 
58
    symbol_versioning,
 
59
    upgrade,
 
60
    workingtree,
 
61
    )
 
62
from bzrlib.repofmt import knitrepo, weaverepo, pack_repo
 
63
 
 
64
 
 
65
class TestDefaultFormat(TestCase):
 
66
 
 
67
    def test_get_set_default_format(self):
 
68
        old_default = bzrdir.format_registry.get('default')
 
69
        private_default = old_default().repository_format.__class__
 
70
        old_format = repository.RepositoryFormat.get_default_format()
 
71
        self.assertTrue(isinstance(old_format, private_default))
 
72
        def make_sample_bzrdir():
 
73
            my_bzrdir = bzrdir.BzrDirMetaFormat1()
 
74
            my_bzrdir.repository_format = SampleRepositoryFormat()
 
75
            return my_bzrdir
 
76
        bzrdir.format_registry.remove('default')
 
77
        bzrdir.format_registry.register('sample', make_sample_bzrdir, '')
 
78
        bzrdir.format_registry.set_default('sample')
 
79
        # creating a repository should now create an instrumented dir.
 
80
        try:
 
81
            # the default branch format is used by the meta dir format
 
82
            # which is not the default bzrdir format at this point
 
83
            dir = bzrdir.BzrDirMetaFormat1().initialize('memory:///')
 
84
            result = dir.create_repository()
 
85
            self.assertEqual(result, 'A bzr repository dir')
 
86
        finally:
 
87
            bzrdir.format_registry.remove('default')
 
88
            bzrdir.format_registry.remove('sample')
 
89
            bzrdir.format_registry.register('default', old_default, '')
 
90
        self.assertIsInstance(repository.RepositoryFormat.get_default_format(),
 
91
                              old_format.__class__)
 
92
 
 
93
 
 
94
class SampleRepositoryFormat(repository.RepositoryFormat):
 
95
    """A sample format
 
96
 
 
97
    this format is initializable, unsupported to aid in testing the 
 
98
    open and open(unsupported=True) routines.
 
99
    """
 
100
 
 
101
    def get_format_string(self):
 
102
        """See RepositoryFormat.get_format_string()."""
 
103
        return "Sample .bzr repository format."
 
104
 
 
105
    def initialize(self, a_bzrdir, shared=False):
 
106
        """Initialize a repository in a BzrDir"""
 
107
        t = a_bzrdir.get_repository_transport(self)
 
108
        t.put_bytes('format', self.get_format_string())
 
109
        return 'A bzr repository dir'
 
110
 
 
111
    def is_supported(self):
 
112
        return False
 
113
 
 
114
    def open(self, a_bzrdir, _found=False):
 
115
        return "opened repository."
 
116
 
 
117
 
 
118
class TestRepositoryFormat(TestCaseWithTransport):
 
119
    """Tests for the Repository format detection used by the bzr meta dir facility.BzrBranchFormat facility."""
 
120
 
 
121
    def test_find_format(self):
 
122
        # is the right format object found for a repository?
 
123
        # create a branch with a few known format objects.
 
124
        # this is not quite the same as 
 
125
        self.build_tree(["foo/", "bar/"])
 
126
        def check_format(format, url):
 
127
            dir = format._matchingbzrdir.initialize(url)
 
128
            format.initialize(dir)
 
129
            t = get_transport(url)
 
130
            found_format = repository.RepositoryFormat.find_format(dir)
 
131
            self.failUnless(isinstance(found_format, format.__class__))
 
132
        check_format(weaverepo.RepositoryFormat7(), "bar")
 
133
        
 
134
    def test_find_format_no_repository(self):
 
135
        dir = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
136
        self.assertRaises(errors.NoRepositoryPresent,
 
137
                          repository.RepositoryFormat.find_format,
 
138
                          dir)
 
139
 
 
140
    def test_find_format_unknown_format(self):
 
141
        dir = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
142
        SampleRepositoryFormat().initialize(dir)
 
143
        self.assertRaises(UnknownFormatError,
 
144
                          repository.RepositoryFormat.find_format,
 
145
                          dir)
 
146
 
 
147
    def test_register_unregister_format(self):
 
148
        format = SampleRepositoryFormat()
 
149
        # make a control dir
 
150
        dir = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
151
        # make a repo
 
152
        format.initialize(dir)
 
153
        # register a format for it.
 
154
        repository.RepositoryFormat.register_format(format)
 
155
        # which repository.Open will refuse (not supported)
 
156
        self.assertRaises(UnsupportedFormatError, repository.Repository.open, self.get_url())
 
157
        # but open(unsupported) will work
 
158
        self.assertEqual(format.open(dir), "opened repository.")
 
159
        # unregister the format
 
160
        repository.RepositoryFormat.unregister_format(format)
 
161
 
 
162
 
 
163
class TestFormat6(TestCaseWithTransport):
 
164
 
 
165
    def test_attribute__fetch_order(self):
 
166
        """Weaves need topological data insertion."""
 
167
        control = bzrdir.BzrDirFormat6().initialize(self.get_url())
 
168
        repo = weaverepo.RepositoryFormat6().initialize(control)
 
169
        self.assertEqual('topological', repo._fetch_order)
 
170
 
 
171
    def test_attribute__fetch_uses_deltas(self):
 
172
        """Weaves do not reuse deltas."""
 
173
        control = bzrdir.BzrDirFormat6().initialize(self.get_url())
 
174
        repo = weaverepo.RepositoryFormat6().initialize(control)
 
175
        self.assertEqual(False, repo._fetch_uses_deltas)
 
176
 
 
177
    def test_attribute__fetch_reconcile(self):
 
178
        """Weave repositories need a reconcile after fetch."""
 
179
        control = bzrdir.BzrDirFormat6().initialize(self.get_url())
 
180
        repo = weaverepo.RepositoryFormat6().initialize(control)
 
181
        self.assertEqual(True, repo._fetch_reconcile)
 
182
 
 
183
    def test_no_ancestry_weave(self):
 
184
        control = bzrdir.BzrDirFormat6().initialize(self.get_url())
 
185
        repo = weaverepo.RepositoryFormat6().initialize(control)
 
186
        # We no longer need to create the ancestry.weave file
 
187
        # since it is *never* used.
 
188
        self.assertRaises(NoSuchFile,
 
189
                          control.transport.get,
 
190
                          'ancestry.weave')
 
191
 
 
192
    def test_supports_external_lookups(self):
 
193
        control = bzrdir.BzrDirFormat6().initialize(self.get_url())
 
194
        repo = weaverepo.RepositoryFormat6().initialize(control)
 
195
        self.assertFalse(repo._format.supports_external_lookups)
 
196
 
 
197
 
 
198
class TestFormat7(TestCaseWithTransport):
 
199
 
 
200
    def test_attribute__fetch_order(self):
 
201
        """Weaves need topological data insertion."""
 
202
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
203
        repo = weaverepo.RepositoryFormat7().initialize(control)
 
204
        self.assertEqual('topological', repo._fetch_order)
 
205
 
 
206
    def test_attribute__fetch_uses_deltas(self):
 
207
        """Weaves do not reuse deltas."""
 
208
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
209
        repo = weaverepo.RepositoryFormat7().initialize(control)
 
210
        self.assertEqual(False, repo._fetch_uses_deltas)
 
211
 
 
212
    def test_attribute__fetch_reconcile(self):
 
213
        """Weave repositories need a reconcile after fetch."""
 
214
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
215
        repo = weaverepo.RepositoryFormat7().initialize(control)
 
216
        self.assertEqual(True, repo._fetch_reconcile)
 
217
 
 
218
    def test_disk_layout(self):
 
219
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
220
        repo = weaverepo.RepositoryFormat7().initialize(control)
 
221
        # in case of side effects of locking.
 
222
        repo.lock_write()
 
223
        repo.unlock()
 
224
        # we want:
 
225
        # format 'Bazaar-NG Repository format 7'
 
226
        # lock ''
 
227
        # inventory.weave == empty_weave
 
228
        # empty revision-store directory
 
229
        # empty weaves directory
 
230
        t = control.get_repository_transport(None)
 
231
        self.assertEqualDiff('Bazaar-NG Repository format 7',
 
232
                             t.get('format').read())
 
233
        self.assertTrue(S_ISDIR(t.stat('revision-store').st_mode))
 
234
        self.assertTrue(S_ISDIR(t.stat('weaves').st_mode))
 
235
        self.assertEqualDiff('# bzr weave file v5\n'
 
236
                             'w\n'
 
237
                             'W\n',
 
238
                             t.get('inventory.weave').read())
 
239
        # Creating a file with id Foo:Bar results in a non-escaped file name on
 
240
        # disk.
 
241
        control.create_branch()
 
242
        tree = control.create_workingtree()
 
243
        tree.add(['foo'], ['Foo:Bar'], ['file'])
 
244
        tree.put_file_bytes_non_atomic('Foo:Bar', 'content\n')
 
245
        tree.commit('first post', rev_id='first')
 
246
        self.assertEqualDiff(
 
247
            '# bzr weave file v5\n'
 
248
            'i\n'
 
249
            '1 7fe70820e08a1aac0ef224d9c66ab66831cc4ab1\n'
 
250
            'n first\n'
 
251
            '\n'
 
252
            'w\n'
 
253
            '{ 0\n'
 
254
            '. content\n'
 
255
            '}\n'
 
256
            'W\n',
 
257
            t.get('weaves/74/Foo%3ABar.weave').read())
 
258
 
 
259
    def test_shared_disk_layout(self):
 
260
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
261
        repo = weaverepo.RepositoryFormat7().initialize(control, shared=True)
 
262
        # we want:
 
263
        # format 'Bazaar-NG Repository format 7'
 
264
        # inventory.weave == empty_weave
 
265
        # empty revision-store directory
 
266
        # empty weaves directory
 
267
        # a 'shared-storage' marker file.
 
268
        # lock is not present when unlocked
 
269
        t = control.get_repository_transport(None)
 
270
        self.assertEqualDiff('Bazaar-NG Repository format 7',
 
271
                             t.get('format').read())
 
272
        self.assertEqualDiff('', t.get('shared-storage').read())
 
273
        self.assertTrue(S_ISDIR(t.stat('revision-store').st_mode))
 
274
        self.assertTrue(S_ISDIR(t.stat('weaves').st_mode))
 
275
        self.assertEqualDiff('# bzr weave file v5\n'
 
276
                             'w\n'
 
277
                             'W\n',
 
278
                             t.get('inventory.weave').read())
 
279
        self.assertFalse(t.has('branch-lock'))
 
280
 
 
281
    def test_creates_lockdir(self):
 
282
        """Make sure it appears to be controlled by a LockDir existence"""
 
283
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
284
        repo = weaverepo.RepositoryFormat7().initialize(control, shared=True)
 
285
        t = control.get_repository_transport(None)
 
286
        # TODO: Should check there is a 'lock' toplevel directory, 
 
287
        # regardless of contents
 
288
        self.assertFalse(t.has('lock/held/info'))
 
289
        repo.lock_write()
 
290
        try:
 
291
            self.assertTrue(t.has('lock/held/info'))
 
292
        finally:
 
293
            # unlock so we don't get a warning about failing to do so
 
294
            repo.unlock()
 
295
 
 
296
    def test_uses_lockdir(self):
 
297
        """repo format 7 actually locks on lockdir"""
 
298
        base_url = self.get_url()
 
299
        control = bzrdir.BzrDirMetaFormat1().initialize(base_url)
 
300
        repo = weaverepo.RepositoryFormat7().initialize(control, shared=True)
 
301
        t = control.get_repository_transport(None)
 
302
        repo.lock_write()
 
303
        repo.unlock()
 
304
        del repo
 
305
        # make sure the same lock is created by opening it
 
306
        repo = repository.Repository.open(base_url)
 
307
        repo.lock_write()
 
308
        self.assertTrue(t.has('lock/held/info'))
 
309
        repo.unlock()
 
310
        self.assertFalse(t.has('lock/held/info'))
 
311
 
 
312
    def test_shared_no_tree_disk_layout(self):
 
313
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
314
        repo = weaverepo.RepositoryFormat7().initialize(control, shared=True)
 
315
        repo.set_make_working_trees(False)
 
316
        # we want:
 
317
        # format 'Bazaar-NG Repository format 7'
 
318
        # lock ''
 
319
        # inventory.weave == empty_weave
 
320
        # empty revision-store directory
 
321
        # empty weaves directory
 
322
        # a 'shared-storage' marker file.
 
323
        t = control.get_repository_transport(None)
 
324
        self.assertEqualDiff('Bazaar-NG Repository format 7',
 
325
                             t.get('format').read())
 
326
        ## self.assertEqualDiff('', t.get('lock').read())
 
327
        self.assertEqualDiff('', t.get('shared-storage').read())
 
328
        self.assertEqualDiff('', t.get('no-working-trees').read())
 
329
        repo.set_make_working_trees(True)
 
330
        self.assertFalse(t.has('no-working-trees'))
 
331
        self.assertTrue(S_ISDIR(t.stat('revision-store').st_mode))
 
332
        self.assertTrue(S_ISDIR(t.stat('weaves').st_mode))
 
333
        self.assertEqualDiff('# bzr weave file v5\n'
 
334
                             'w\n'
 
335
                             'W\n',
 
336
                             t.get('inventory.weave').read())
 
337
 
 
338
    def test_supports_external_lookups(self):
 
339
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
340
        repo = weaverepo.RepositoryFormat7().initialize(control)
 
341
        self.assertFalse(repo._format.supports_external_lookups)
 
342
 
 
343
 
 
344
class TestFormatKnit1(TestCaseWithTransport):
 
345
    
 
346
    def test_attribute__fetch_order(self):
 
347
        """Knits need topological data insertion."""
 
348
        repo = self.make_repository('.',
 
349
                format=bzrdir.format_registry.get('knit')())
 
350
        self.assertEqual('topological', repo._fetch_order)
 
351
 
 
352
    def test_attribute__fetch_uses_deltas(self):
 
353
        """Knits reuse deltas."""
 
354
        repo = self.make_repository('.',
 
355
                format=bzrdir.format_registry.get('knit')())
 
356
        self.assertEqual(True, repo._fetch_uses_deltas)
 
357
 
 
358
    def test_disk_layout(self):
 
359
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
360
        repo = knitrepo.RepositoryFormatKnit1().initialize(control)
 
361
        # in case of side effects of locking.
 
362
        repo.lock_write()
 
363
        repo.unlock()
 
364
        # we want:
 
365
        # format 'Bazaar-NG Knit Repository Format 1'
 
366
        # lock: is a directory
 
367
        # inventory.weave == empty_weave
 
368
        # empty revision-store directory
 
369
        # empty weaves directory
 
370
        t = control.get_repository_transport(None)
 
371
        self.assertEqualDiff('Bazaar-NG Knit Repository Format 1',
 
372
                             t.get('format').read())
 
373
        # XXX: no locks left when unlocked at the moment
 
374
        # self.assertEqualDiff('', t.get('lock').read())
 
375
        self.assertTrue(S_ISDIR(t.stat('knits').st_mode))
 
376
        self.check_knits(t)
 
377
        # Check per-file knits.
 
378
        branch = control.create_branch()
 
379
        tree = control.create_workingtree()
 
380
        tree.add(['foo'], ['Nasty-IdC:'], ['file'])
 
381
        tree.put_file_bytes_non_atomic('Nasty-IdC:', '')
 
382
        tree.commit('1st post', rev_id='foo')
 
383
        self.assertHasKnit(t, 'knits/e8/%254easty-%2549d%2543%253a',
 
384
            '\nfoo fulltext 0 81  :')
 
385
 
 
386
    def assertHasKnit(self, t, knit_name, extra_content=''):
 
387
        """Assert that knit_name exists on t."""
 
388
        self.assertEqualDiff('# bzr knit index 8\n' + extra_content,
 
389
                             t.get(knit_name + '.kndx').read())
 
390
 
 
391
    def check_knits(self, t):
 
392
        """check knit content for a repository."""
 
393
        self.assertHasKnit(t, 'inventory')
 
394
        self.assertHasKnit(t, 'revisions')
 
395
        self.assertHasKnit(t, 'signatures')
 
396
 
 
397
    def test_shared_disk_layout(self):
 
398
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
399
        repo = knitrepo.RepositoryFormatKnit1().initialize(control, shared=True)
 
400
        # we want:
 
401
        # format 'Bazaar-NG Knit Repository Format 1'
 
402
        # lock: is a directory
 
403
        # inventory.weave == empty_weave
 
404
        # empty revision-store directory
 
405
        # empty weaves directory
 
406
        # a 'shared-storage' marker file.
 
407
        t = control.get_repository_transport(None)
 
408
        self.assertEqualDiff('Bazaar-NG Knit Repository Format 1',
 
409
                             t.get('format').read())
 
410
        # XXX: no locks left when unlocked at the moment
 
411
        # self.assertEqualDiff('', t.get('lock').read())
 
412
        self.assertEqualDiff('', t.get('shared-storage').read())
 
413
        self.assertTrue(S_ISDIR(t.stat('knits').st_mode))
 
414
        self.check_knits(t)
 
415
 
 
416
    def test_shared_no_tree_disk_layout(self):
 
417
        control = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
418
        repo = knitrepo.RepositoryFormatKnit1().initialize(control, shared=True)
 
419
        repo.set_make_working_trees(False)
 
420
        # we want:
 
421
        # format 'Bazaar-NG Knit Repository Format 1'
 
422
        # lock ''
 
423
        # inventory.weave == empty_weave
 
424
        # empty revision-store directory
 
425
        # empty weaves directory
 
426
        # a 'shared-storage' marker file.
 
427
        t = control.get_repository_transport(None)
 
428
        self.assertEqualDiff('Bazaar-NG Knit Repository Format 1',
 
429
                             t.get('format').read())
 
430
        # XXX: no locks left when unlocked at the moment
 
431
        # self.assertEqualDiff('', t.get('lock').read())
 
432
        self.assertEqualDiff('', t.get('shared-storage').read())
 
433
        self.assertEqualDiff('', t.get('no-working-trees').read())
 
434
        repo.set_make_working_trees(True)
 
435
        self.assertFalse(t.has('no-working-trees'))
 
436
        self.assertTrue(S_ISDIR(t.stat('knits').st_mode))
 
437
        self.check_knits(t)
 
438
 
 
439
    def test_deserialise_sets_root_revision(self):
 
440
        """We must have a inventory.root.revision
 
441
 
 
442
        Old versions of the XML5 serializer did not set the revision_id for
 
443
        the whole inventory. So we grab the one from the expected text. Which
 
444
        is valid when the api is not being abused.
 
445
        """
 
446
        repo = self.make_repository('.',
 
447
                format=bzrdir.format_registry.get('knit')())
 
448
        inv_xml = '<inventory format="5">\n</inventory>\n'
 
449
        inv = repo.deserialise_inventory('test-rev-id', inv_xml)
 
450
        self.assertEqual('test-rev-id', inv.root.revision)
 
451
 
 
452
    def test_deserialise_uses_global_revision_id(self):
 
453
        """If it is set, then we re-use the global revision id"""
 
454
        repo = self.make_repository('.',
 
455
                format=bzrdir.format_registry.get('knit')())
 
456
        inv_xml = ('<inventory format="5" revision_id="other-rev-id">\n'
 
457
                   '</inventory>\n')
 
458
        # Arguably, the deserialise_inventory should detect a mismatch, and
 
459
        # raise an error, rather than silently using one revision_id over the
 
460
        # other.
 
461
        self.assertRaises(AssertionError, repo.deserialise_inventory,
 
462
            'test-rev-id', inv_xml)
 
463
        inv = repo.deserialise_inventory('other-rev-id', inv_xml)
 
464
        self.assertEqual('other-rev-id', inv.root.revision)
 
465
 
 
466
    def test_supports_external_lookups(self):
 
467
        repo = self.make_repository('.',
 
468
                format=bzrdir.format_registry.get('knit')())
 
469
        self.assertFalse(repo._format.supports_external_lookups)
 
470
 
 
471
 
 
472
class DummyRepository(object):
 
473
    """A dummy repository for testing."""
 
474
 
 
475
    _serializer = None
 
476
 
 
477
    def supports_rich_root(self):
 
478
        return False
 
479
 
 
480
 
 
481
class InterDummy(repository.InterRepository):
 
482
    """An inter-repository optimised code path for DummyRepository.
 
483
 
 
484
    This is for use during testing where we use DummyRepository as repositories
 
485
    so that none of the default regsitered inter-repository classes will
 
486
    MATCH.
 
487
    """
 
488
 
 
489
    @staticmethod
 
490
    def is_compatible(repo_source, repo_target):
 
491
        """InterDummy is compatible with DummyRepository."""
 
492
        return (isinstance(repo_source, DummyRepository) and 
 
493
            isinstance(repo_target, DummyRepository))
 
494
 
 
495
 
 
496
class TestInterRepository(TestCaseWithTransport):
 
497
 
 
498
    def test_get_default_inter_repository(self):
 
499
        # test that the InterRepository.get(repo_a, repo_b) probes
 
500
        # for a inter_repo class where is_compatible(repo_a, repo_b) returns
 
501
        # true and returns a default inter_repo otherwise.
 
502
        # This also tests that the default registered optimised interrepository
 
503
        # classes do not barf inappropriately when a surprising repository type
 
504
        # is handed to them.
 
505
        dummy_a = DummyRepository()
 
506
        dummy_b = DummyRepository()
 
507
        self.assertGetsDefaultInterRepository(dummy_a, dummy_b)
 
508
 
 
509
    def assertGetsDefaultInterRepository(self, repo_a, repo_b):
 
510
        """Asserts that InterRepository.get(repo_a, repo_b) -> the default.
 
511
        
 
512
        The effective default is now InterSameDataRepository because there is
 
513
        no actual sane default in the presence of incompatible data models.
 
514
        """
 
515
        inter_repo = repository.InterRepository.get(repo_a, repo_b)
 
516
        self.assertEqual(repository.InterSameDataRepository,
 
517
                         inter_repo.__class__)
 
518
        self.assertEqual(repo_a, inter_repo.source)
 
519
        self.assertEqual(repo_b, inter_repo.target)
 
520
 
 
521
    def test_register_inter_repository_class(self):
 
522
        # test that a optimised code path provider - a
 
523
        # InterRepository subclass can be registered and unregistered
 
524
        # and that it is correctly selected when given a repository
 
525
        # pair that it returns true on for the is_compatible static method
 
526
        # check
 
527
        dummy_a = DummyRepository()
 
528
        dummy_b = DummyRepository()
 
529
        repo = self.make_repository('.')
 
530
        # hack dummies to look like repo somewhat.
 
531
        dummy_a._serializer = repo._serializer
 
532
        dummy_b._serializer = repo._serializer
 
533
        repository.InterRepository.register_optimiser(InterDummy)
 
534
        try:
 
535
            # we should get the default for something InterDummy returns False
 
536
            # to
 
537
            self.assertFalse(InterDummy.is_compatible(dummy_a, repo))
 
538
            self.assertGetsDefaultInterRepository(dummy_a, repo)
 
539
            # and we should get an InterDummy for a pair it 'likes'
 
540
            self.assertTrue(InterDummy.is_compatible(dummy_a, dummy_b))
 
541
            inter_repo = repository.InterRepository.get(dummy_a, dummy_b)
 
542
            self.assertEqual(InterDummy, inter_repo.__class__)
 
543
            self.assertEqual(dummy_a, inter_repo.source)
 
544
            self.assertEqual(dummy_b, inter_repo.target)
 
545
        finally:
 
546
            repository.InterRepository.unregister_optimiser(InterDummy)
 
547
        # now we should get the default InterRepository object again.
 
548
        self.assertGetsDefaultInterRepository(dummy_a, dummy_b)
 
549
 
 
550
 
 
551
class TestInterWeaveRepo(TestCaseWithTransport):
 
552
 
 
553
    def test_is_compatible_and_registered(self):
 
554
        # InterWeaveRepo is compatible when either side
 
555
        # is a format 5/6/7 branch
 
556
        from bzrlib.repofmt import knitrepo, weaverepo
 
557
        formats = [weaverepo.RepositoryFormat5(),
 
558
                   weaverepo.RepositoryFormat6(),
 
559
                   weaverepo.RepositoryFormat7()]
 
560
        incompatible_formats = [weaverepo.RepositoryFormat4(),
 
561
                                knitrepo.RepositoryFormatKnit1(),
 
562
                                ]
 
563
        repo_a = self.make_repository('a')
 
564
        repo_b = self.make_repository('b')
 
565
        is_compatible = repository.InterWeaveRepo.is_compatible
 
566
        for source in incompatible_formats:
 
567
            # force incompatible left then right
 
568
            repo_a._format = source
 
569
            repo_b._format = formats[0]
 
570
            self.assertFalse(is_compatible(repo_a, repo_b))
 
571
            self.assertFalse(is_compatible(repo_b, repo_a))
 
572
        for source in formats:
 
573
            repo_a._format = source
 
574
            for target in formats:
 
575
                repo_b._format = target
 
576
                self.assertTrue(is_compatible(repo_a, repo_b))
 
577
        self.assertEqual(repository.InterWeaveRepo,
 
578
                         repository.InterRepository.get(repo_a,
 
579
                                                        repo_b).__class__)
 
580
 
 
581
 
 
582
class TestRepositoryConverter(TestCaseWithTransport):
 
583
 
 
584
    def test_convert_empty(self):
 
585
        t = get_transport(self.get_url('.'))
 
586
        t.mkdir('repository')
 
587
        repo_dir = bzrdir.BzrDirMetaFormat1().initialize('repository')
 
588
        repo = weaverepo.RepositoryFormat7().initialize(repo_dir)
 
589
        target_format = knitrepo.RepositoryFormatKnit1()
 
590
        converter = repository.CopyConverter(target_format)
 
591
        pb = bzrlib.ui.ui_factory.nested_progress_bar()
 
592
        try:
 
593
            converter.convert(repo, pb)
 
594
        finally:
 
595
            pb.finished()
 
596
        repo = repo_dir.open_repository()
 
597
        self.assertTrue(isinstance(target_format, repo._format.__class__))
 
598
 
 
599
 
 
600
class TestMisc(TestCase):
 
601
    
 
602
    def test_unescape_xml(self):
 
603
        """We get some kind of error when malformed entities are passed"""
 
604
        self.assertRaises(KeyError, repository._unescape_xml, 'foo&bar;') 
 
605
 
 
606
 
 
607
class TestRepositoryFormatKnit3(TestCaseWithTransport):
 
608
 
 
609
    def test_attribute__fetch_order(self):
 
610
        """Knits need topological data insertion."""
 
611
        format = bzrdir.BzrDirMetaFormat1()
 
612
        format.repository_format = knitrepo.RepositoryFormatKnit3()
 
613
        repo = self.make_repository('.', format=format)
 
614
        self.assertEqual('topological', repo._fetch_order)
 
615
 
 
616
    def test_attribute__fetch_uses_deltas(self):
 
617
        """Knits reuse deltas."""
 
618
        format = bzrdir.BzrDirMetaFormat1()
 
619
        format.repository_format = knitrepo.RepositoryFormatKnit3()
 
620
        repo = self.make_repository('.', format=format)
 
621
        self.assertEqual(True, repo._fetch_uses_deltas)
 
622
 
 
623
    def test_convert(self):
 
624
        """Ensure the upgrade adds weaves for roots"""
 
625
        format = bzrdir.BzrDirMetaFormat1()
 
626
        format.repository_format = knitrepo.RepositoryFormatKnit1()
 
627
        tree = self.make_branch_and_tree('.', format)
 
628
        tree.commit("Dull commit", rev_id="dull")
 
629
        revision_tree = tree.branch.repository.revision_tree('dull')
 
630
        revision_tree.lock_read()
 
631
        try:
 
632
            self.assertRaises(errors.NoSuchFile, revision_tree.get_file_lines,
 
633
                revision_tree.inventory.root.file_id)
 
634
        finally:
 
635
            revision_tree.unlock()
 
636
        format = bzrdir.BzrDirMetaFormat1()
 
637
        format.repository_format = knitrepo.RepositoryFormatKnit3()
 
638
        upgrade.Convert('.', format)
 
639
        tree = workingtree.WorkingTree.open('.')
 
640
        revision_tree = tree.branch.repository.revision_tree('dull')
 
641
        revision_tree.lock_read()
 
642
        try:
 
643
            revision_tree.get_file_lines(revision_tree.inventory.root.file_id)
 
644
        finally:
 
645
            revision_tree.unlock()
 
646
        tree.commit("Another dull commit", rev_id='dull2')
 
647
        revision_tree = tree.branch.repository.revision_tree('dull2')
 
648
        revision_tree.lock_read()
 
649
        self.addCleanup(revision_tree.unlock)
 
650
        self.assertEqual('dull', revision_tree.inventory.root.revision)
 
651
 
 
652
    def test_supports_external_lookups(self):
 
653
        format = bzrdir.BzrDirMetaFormat1()
 
654
        format.repository_format = knitrepo.RepositoryFormatKnit3()
 
655
        repo = self.make_repository('.', format=format)
 
656
        self.assertFalse(repo._format.supports_external_lookups)
 
657
 
 
658
 
 
659
class TestWithBrokenRepo(TestCaseWithTransport):
 
660
    """These tests seem to be more appropriate as interface tests?"""
 
661
 
 
662
    def make_broken_repository(self):
 
663
        # XXX: This function is borrowed from Aaron's "Reconcile can fix bad
 
664
        # parent references" branch which is due to land in bzr.dev soon.  Once
 
665
        # it does, this duplication should be removed.
 
666
        repo = self.make_repository('broken-repo')
 
667
        cleanups = []
 
668
        try:
 
669
            repo.lock_write()
 
670
            cleanups.append(repo.unlock)
 
671
            repo.start_write_group()
 
672
            cleanups.append(repo.commit_write_group)
 
673
            # make rev1a: A well-formed revision, containing 'file1'
 
674
            inv = inventory.Inventory(revision_id='rev1a')
 
675
            inv.root.revision = 'rev1a'
 
676
            self.add_file(repo, inv, 'file1', 'rev1a', [])
 
677
            repo.add_inventory('rev1a', inv, [])
 
678
            revision = _mod_revision.Revision('rev1a',
 
679
                committer='jrandom@example.com', timestamp=0,
 
680
                inventory_sha1='', timezone=0, message='foo', parent_ids=[])
 
681
            repo.add_revision('rev1a',revision, inv)
 
682
 
 
683
            # make rev1b, which has no Revision, but has an Inventory, and
 
684
            # file1
 
685
            inv = inventory.Inventory(revision_id='rev1b')
 
686
            inv.root.revision = 'rev1b'
 
687
            self.add_file(repo, inv, 'file1', 'rev1b', [])
 
688
            repo.add_inventory('rev1b', inv, [])
 
689
 
 
690
            # make rev2, with file1 and file2
 
691
            # file2 is sane
 
692
            # file1 has 'rev1b' as an ancestor, even though this is not
 
693
            # mentioned by 'rev1a', making it an unreferenced ancestor
 
694
            inv = inventory.Inventory()
 
695
            self.add_file(repo, inv, 'file1', 'rev2', ['rev1a', 'rev1b'])
 
696
            self.add_file(repo, inv, 'file2', 'rev2', [])
 
697
            self.add_revision(repo, 'rev2', inv, ['rev1a'])
 
698
 
 
699
            # make ghost revision rev1c
 
700
            inv = inventory.Inventory()
 
701
            self.add_file(repo, inv, 'file2', 'rev1c', [])
 
702
 
 
703
            # make rev3 with file2
 
704
            # file2 refers to 'rev1c', which is a ghost in this repository, so
 
705
            # file2 cannot have rev1c as its ancestor.
 
706
            inv = inventory.Inventory()
 
707
            self.add_file(repo, inv, 'file2', 'rev3', ['rev1c'])
 
708
            self.add_revision(repo, 'rev3', inv, ['rev1c'])
 
709
            return repo
 
710
        finally:
 
711
            for cleanup in reversed(cleanups):
 
712
                cleanup()
 
713
 
 
714
    def add_revision(self, repo, revision_id, inv, parent_ids):
 
715
        inv.revision_id = revision_id
 
716
        inv.root.revision = revision_id
 
717
        repo.add_inventory(revision_id, inv, parent_ids)
 
718
        revision = _mod_revision.Revision(revision_id,
 
719
            committer='jrandom@example.com', timestamp=0, inventory_sha1='',
 
720
            timezone=0, message='foo', parent_ids=parent_ids)
 
721
        repo.add_revision(revision_id,revision, inv)
 
722
 
 
723
    def add_file(self, repo, inv, filename, revision, parents):
 
724
        file_id = filename + '-id'
 
725
        entry = inventory.InventoryFile(file_id, filename, 'TREE_ROOT')
 
726
        entry.revision = revision
 
727
        entry.text_size = 0
 
728
        inv.add(entry)
 
729
        text_key = (file_id, revision)
 
730
        parent_keys = [(file_id, parent) for parent in parents]
 
731
        repo.texts.add_lines(text_key, parent_keys, ['line\n'])
 
732
 
 
733
    def test_insert_from_broken_repo(self):
 
734
        """Inserting a data stream from a broken repository won't silently
 
735
        corrupt the target repository.
 
736
        """
 
737
        broken_repo = self.make_broken_repository()
 
738
        empty_repo = self.make_repository('empty-repo')
 
739
        self.assertRaises(errors.RevisionNotPresent, empty_repo.fetch, broken_repo)
 
740
 
 
741
 
 
742
class TestRepositoryPackCollection(TestCaseWithTransport):
 
743
 
 
744
    def get_format(self):
 
745
        return bzrdir.format_registry.make_bzrdir('pack-0.92')
 
746
 
 
747
    def test__max_pack_count(self):
 
748
        """The maximum pack count is a function of the number of revisions."""
 
749
        format = self.get_format()
 
750
        repo = self.make_repository('.', format=format)
 
751
        packs = repo._pack_collection
 
752
        # no revisions - one pack, so that we can have a revision free repo
 
753
        # without it blowing up
 
754
        self.assertEqual(1, packs._max_pack_count(0))
 
755
        # after that the sum of the digits, - check the first 1-9
 
756
        self.assertEqual(1, packs._max_pack_count(1))
 
757
        self.assertEqual(2, packs._max_pack_count(2))
 
758
        self.assertEqual(3, packs._max_pack_count(3))
 
759
        self.assertEqual(4, packs._max_pack_count(4))
 
760
        self.assertEqual(5, packs._max_pack_count(5))
 
761
        self.assertEqual(6, packs._max_pack_count(6))
 
762
        self.assertEqual(7, packs._max_pack_count(7))
 
763
        self.assertEqual(8, packs._max_pack_count(8))
 
764
        self.assertEqual(9, packs._max_pack_count(9))
 
765
        # check the boundary cases with two digits for the next decade
 
766
        self.assertEqual(1, packs._max_pack_count(10))
 
767
        self.assertEqual(2, packs._max_pack_count(11))
 
768
        self.assertEqual(10, packs._max_pack_count(19))
 
769
        self.assertEqual(2, packs._max_pack_count(20))
 
770
        self.assertEqual(3, packs._max_pack_count(21))
 
771
        # check some arbitrary big numbers
 
772
        self.assertEqual(25, packs._max_pack_count(112894))
 
773
 
 
774
    def test_pack_distribution_zero(self):
 
775
        format = self.get_format()
 
776
        repo = self.make_repository('.', format=format)
 
777
        packs = repo._pack_collection
 
778
        self.assertEqual([0], packs.pack_distribution(0))
 
779
 
 
780
    def test_ensure_loaded_unlocked(self):
 
781
        format = self.get_format()
 
782
        repo = self.make_repository('.', format=format)
 
783
        self.assertRaises(errors.ObjectNotLocked,
 
784
                          repo._pack_collection.ensure_loaded)
 
785
 
 
786
    def test_pack_distribution_one_to_nine(self):
 
787
        format = self.get_format()
 
788
        repo = self.make_repository('.', format=format)
 
789
        packs = repo._pack_collection
 
790
        self.assertEqual([1],
 
791
            packs.pack_distribution(1))
 
792
        self.assertEqual([1, 1],
 
793
            packs.pack_distribution(2))
 
794
        self.assertEqual([1, 1, 1],
 
795
            packs.pack_distribution(3))
 
796
        self.assertEqual([1, 1, 1, 1],
 
797
            packs.pack_distribution(4))
 
798
        self.assertEqual([1, 1, 1, 1, 1],
 
799
            packs.pack_distribution(5))
 
800
        self.assertEqual([1, 1, 1, 1, 1, 1],
 
801
            packs.pack_distribution(6))
 
802
        self.assertEqual([1, 1, 1, 1, 1, 1, 1],
 
803
            packs.pack_distribution(7))
 
804
        self.assertEqual([1, 1, 1, 1, 1, 1, 1, 1],
 
805
            packs.pack_distribution(8))
 
806
        self.assertEqual([1, 1, 1, 1, 1, 1, 1, 1, 1],
 
807
            packs.pack_distribution(9))
 
808
 
 
809
    def test_pack_distribution_stable_at_boundaries(self):
 
810
        """When there are multi-rev packs the counts are stable."""
 
811
        format = self.get_format()
 
812
        repo = self.make_repository('.', format=format)
 
813
        packs = repo._pack_collection
 
814
        # in 10s:
 
815
        self.assertEqual([10], packs.pack_distribution(10))
 
816
        self.assertEqual([10, 1], packs.pack_distribution(11))
 
817
        self.assertEqual([10, 10], packs.pack_distribution(20))
 
818
        self.assertEqual([10, 10, 1], packs.pack_distribution(21))
 
819
        # 100s
 
820
        self.assertEqual([100], packs.pack_distribution(100))
 
821
        self.assertEqual([100, 1], packs.pack_distribution(101))
 
822
        self.assertEqual([100, 10, 1], packs.pack_distribution(111))
 
823
        self.assertEqual([100, 100], packs.pack_distribution(200))
 
824
        self.assertEqual([100, 100, 1], packs.pack_distribution(201))
 
825
        self.assertEqual([100, 100, 10, 1], packs.pack_distribution(211))
 
826
 
 
827
    def test_plan_pack_operations_2009_revisions_skip_all_packs(self):
 
828
        format = self.get_format()
 
829
        repo = self.make_repository('.', format=format)
 
830
        packs = repo._pack_collection
 
831
        existing_packs = [(2000, "big"), (9, "medium")]
 
832
        # rev count - 2009 -> 2x1000 + 9x1
 
833
        pack_operations = packs.plan_autopack_combinations(
 
834
            existing_packs, [1000, 1000, 1, 1, 1, 1, 1, 1, 1, 1, 1])
 
835
        self.assertEqual([], pack_operations)
 
836
 
 
837
    def test_plan_pack_operations_2010_revisions_skip_all_packs(self):
 
838
        format = self.get_format()
 
839
        repo = self.make_repository('.', format=format)
 
840
        packs = repo._pack_collection
 
841
        existing_packs = [(2000, "big"), (9, "medium"), (1, "single")]
 
842
        # rev count - 2010 -> 2x1000 + 1x10
 
843
        pack_operations = packs.plan_autopack_combinations(
 
844
            existing_packs, [1000, 1000, 10])
 
845
        self.assertEqual([], pack_operations)
 
846
 
 
847
    def test_plan_pack_operations_2010_combines_smallest_two(self):
 
848
        format = self.get_format()
 
849
        repo = self.make_repository('.', format=format)
 
850
        packs = repo._pack_collection
 
851
        existing_packs = [(1999, "big"), (9, "medium"), (1, "single2"),
 
852
            (1, "single1")]
 
853
        # rev count - 2010 -> 2x1000 + 1x10 (3)
 
854
        pack_operations = packs.plan_autopack_combinations(
 
855
            existing_packs, [1000, 1000, 10])
 
856
        self.assertEqual([[2, ["single2", "single1"]], [0, []]], pack_operations)
 
857
 
 
858
    def test_all_packs_none(self):
 
859
        format = self.get_format()
 
860
        tree = self.make_branch_and_tree('.', format=format)
 
861
        tree.lock_read()
 
862
        self.addCleanup(tree.unlock)
 
863
        packs = tree.branch.repository._pack_collection
 
864
        packs.ensure_loaded()
 
865
        self.assertEqual([], packs.all_packs())
 
866
 
 
867
    def test_all_packs_one(self):
 
868
        format = self.get_format()
 
869
        tree = self.make_branch_and_tree('.', format=format)
 
870
        tree.commit('start')
 
871
        tree.lock_read()
 
872
        self.addCleanup(tree.unlock)
 
873
        packs = tree.branch.repository._pack_collection
 
874
        packs.ensure_loaded()
 
875
        self.assertEqual([
 
876
            packs.get_pack_by_name(packs.names()[0])],
 
877
            packs.all_packs())
 
878
 
 
879
    def test_all_packs_two(self):
 
880
        format = self.get_format()
 
881
        tree = self.make_branch_and_tree('.', format=format)
 
882
        tree.commit('start')
 
883
        tree.commit('continue')
 
884
        tree.lock_read()
 
885
        self.addCleanup(tree.unlock)
 
886
        packs = tree.branch.repository._pack_collection
 
887
        packs.ensure_loaded()
 
888
        self.assertEqual([
 
889
            packs.get_pack_by_name(packs.names()[0]),
 
890
            packs.get_pack_by_name(packs.names()[1]),
 
891
            ], packs.all_packs())
 
892
 
 
893
    def test_get_pack_by_name(self):
 
894
        format = self.get_format()
 
895
        tree = self.make_branch_and_tree('.', format=format)
 
896
        tree.commit('start')
 
897
        tree.lock_read()
 
898
        self.addCleanup(tree.unlock)
 
899
        packs = tree.branch.repository._pack_collection
 
900
        packs.ensure_loaded()
 
901
        name = packs.names()[0]
 
902
        pack_1 = packs.get_pack_by_name(name)
 
903
        # the pack should be correctly initialised
 
904
        sizes = packs._names[name]
 
905
        rev_index = GraphIndex(packs._index_transport, name + '.rix', sizes[0])
 
906
        inv_index = GraphIndex(packs._index_transport, name + '.iix', sizes[1])
 
907
        txt_index = GraphIndex(packs._index_transport, name + '.tix', sizes[2])
 
908
        sig_index = GraphIndex(packs._index_transport, name + '.six', sizes[3])
 
909
        self.assertEqual(pack_repo.ExistingPack(packs._pack_transport,
 
910
            name, rev_index, inv_index, txt_index, sig_index), pack_1)
 
911
        # and the same instance should be returned on successive calls.
 
912
        self.assertTrue(pack_1 is packs.get_pack_by_name(name))
 
913
 
 
914
 
 
915
class TestPack(TestCaseWithTransport):
 
916
    """Tests for the Pack object."""
 
917
 
 
918
    def assertCurrentlyEqual(self, left, right):
 
919
        self.assertTrue(left == right)
 
920
        self.assertTrue(right == left)
 
921
        self.assertFalse(left != right)
 
922
        self.assertFalse(right != left)
 
923
 
 
924
    def assertCurrentlyNotEqual(self, left, right):
 
925
        self.assertFalse(left == right)
 
926
        self.assertFalse(right == left)
 
927
        self.assertTrue(left != right)
 
928
        self.assertTrue(right != left)
 
929
 
 
930
    def test___eq____ne__(self):
 
931
        left = pack_repo.ExistingPack('', '', '', '', '', '')
 
932
        right = pack_repo.ExistingPack('', '', '', '', '', '')
 
933
        self.assertCurrentlyEqual(left, right)
 
934
        # change all attributes and ensure equality changes as we do.
 
935
        left.revision_index = 'a'
 
936
        self.assertCurrentlyNotEqual(left, right)
 
937
        right.revision_index = 'a'
 
938
        self.assertCurrentlyEqual(left, right)
 
939
        left.inventory_index = 'a'
 
940
        self.assertCurrentlyNotEqual(left, right)
 
941
        right.inventory_index = 'a'
 
942
        self.assertCurrentlyEqual(left, right)
 
943
        left.text_index = 'a'
 
944
        self.assertCurrentlyNotEqual(left, right)
 
945
        right.text_index = 'a'
 
946
        self.assertCurrentlyEqual(left, right)
 
947
        left.signature_index = 'a'
 
948
        self.assertCurrentlyNotEqual(left, right)
 
949
        right.signature_index = 'a'
 
950
        self.assertCurrentlyEqual(left, right)
 
951
        left.name = 'a'
 
952
        self.assertCurrentlyNotEqual(left, right)
 
953
        right.name = 'a'
 
954
        self.assertCurrentlyEqual(left, right)
 
955
        left.transport = 'a'
 
956
        self.assertCurrentlyNotEqual(left, right)
 
957
        right.transport = 'a'
 
958
        self.assertCurrentlyEqual(left, right)
 
959
 
 
960
    def test_file_name(self):
 
961
        pack = pack_repo.ExistingPack('', 'a_name', '', '', '', '')
 
962
        self.assertEqual('a_name.pack', pack.file_name())
 
963
 
 
964
 
 
965
class TestNewPack(TestCaseWithTransport):
 
966
    """Tests for pack_repo.NewPack."""
 
967
 
 
968
    def test_new_instance_attributes(self):
 
969
        upload_transport = self.get_transport('upload')
 
970
        pack_transport = self.get_transport('pack')
 
971
        index_transport = self.get_transport('index')
 
972
        upload_transport.mkdir('.')
 
973
        pack = pack_repo.NewPack(upload_transport, index_transport,
 
974
            pack_transport)
 
975
        self.assertIsInstance(pack.revision_index, InMemoryGraphIndex)
 
976
        self.assertIsInstance(pack.inventory_index, InMemoryGraphIndex)
 
977
        self.assertIsInstance(pack._hash, type(md5.new()))
 
978
        self.assertTrue(pack.upload_transport is upload_transport)
 
979
        self.assertTrue(pack.index_transport is index_transport)
 
980
        self.assertTrue(pack.pack_transport is pack_transport)
 
981
        self.assertEqual(None, pack.index_sizes)
 
982
        self.assertEqual(20, len(pack.random_name))
 
983
        self.assertIsInstance(pack.random_name, str)
 
984
        self.assertIsInstance(pack.start_time, float)
 
985
 
 
986
 
 
987
class TestPacker(TestCaseWithTransport):
 
988
    """Tests for the packs repository Packer class."""
 
989
 
 
990
    # To date, this class has been factored out and nothing new added to it;
 
991
    # thus there are not yet any tests.
 
992
 
 
993
 
 
994
class TestInterDifferingSerializer(TestCaseWithTransport):
 
995
 
 
996
    def test_progress_bar(self):
 
997
        tree = self.make_branch_and_tree('tree')
 
998
        tree.commit('rev1', rev_id='rev-1')
 
999
        tree.commit('rev2', rev_id='rev-2')
 
1000
        tree.commit('rev3', rev_id='rev-3')
 
1001
        repo = self.make_repository('repo')
 
1002
        inter_repo = repository.InterDifferingSerializer(
 
1003
            tree.branch.repository, repo)
 
1004
        pb = progress.InstrumentedProgress(to_file=StringIO())
 
1005
        pb.never_throttle = True
 
1006
        inter_repo.fetch('rev-1', pb)
 
1007
        self.assertEqual('Transferring revisions', pb.last_msg)
 
1008
        self.assertEqual(1, pb.last_cnt)
 
1009
        self.assertEqual(1, pb.last_total)
 
1010
        inter_repo.fetch('rev-3', pb)
 
1011
        self.assertEqual(2, pb.last_cnt)
 
1012
        self.assertEqual(2, pb.last_total)