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(vila) Forbid more operations on ReadonlyTransportDecorator (Vincent Ladeuil)

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1
# Copyright (C) 2006-2012 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 Branch facility that are not interface  tests.
 
18
 
 
19
For interface tests see `tests/per_branch/*.py`.
 
20
 
 
21
For concrete class tests see this file, and for meta-branch tests
 
22
also see this file.
 
23
"""
 
24
 
 
25
from cStringIO import StringIO
 
26
 
 
27
from bzrlib import (
 
28
    branch as _mod_branch,
 
29
    bzrdir,
 
30
    config,
 
31
    controldir,
 
32
    errors,
 
33
    tests,
 
34
    trace,
 
35
    urlutils,
 
36
    )
 
37
from bzrlib.branchfmt.fullhistory import (
 
38
    BzrBranch5,
 
39
    BzrBranchFormat5,
 
40
    )
 
41
 
 
42
 
 
43
class TestDefaultFormat(tests.TestCase):
 
44
 
 
45
    def test_default_format(self):
 
46
        # update this if you change the default branch format
 
47
        self.assertIsInstance(_mod_branch.format_registry.get_default(),
 
48
                _mod_branch.BzrBranchFormat7)
 
49
 
 
50
    def test_default_format_is_same_as_bzrdir_default(self):
 
51
        # XXX: it might be nice if there was only one place the default was
 
52
        # set, but at the moment that's not true -- mbp 20070814 --
 
53
        # https://bugs.launchpad.net/bzr/+bug/132376
 
54
        self.assertEqual(
 
55
            _mod_branch.format_registry.get_default(),
 
56
            bzrdir.BzrDirFormat.get_default_format().get_branch_format())
 
57
 
 
58
    def test_get_set_default_format(self):
 
59
        # set the format and then set it back again
 
60
        old_format = _mod_branch.format_registry.get_default()
 
61
        _mod_branch.format_registry.set_default(SampleBranchFormat())
 
62
        try:
 
63
            # the default branch format is used by the meta dir format
 
64
            # which is not the default bzrdir format at this point
 
65
            dir = bzrdir.BzrDirMetaFormat1().initialize('memory:///')
 
66
            result = dir.create_branch()
 
67
            self.assertEqual(result, 'A branch')
 
68
        finally:
 
69
            _mod_branch.format_registry.set_default(old_format)
 
70
        self.assertEqual(old_format,
 
71
                         _mod_branch.format_registry.get_default())
 
72
 
 
73
 
 
74
class TestBranchFormat5(tests.TestCaseWithTransport):
 
75
    """Tests specific to branch format 5"""
 
76
 
 
77
    def test_branch_format_5_uses_lockdir(self):
 
78
        url = self.get_url()
 
79
        bdir = bzrdir.BzrDirMetaFormat1().initialize(url)
 
80
        bdir.create_repository()
 
81
        branch = BzrBranchFormat5().initialize(bdir)
 
82
        t = self.get_transport()
 
83
        self.log("branch instance is %r" % branch)
 
84
        self.assert_(isinstance(branch, BzrBranch5))
 
85
        self.assertIsDirectory('.', t)
 
86
        self.assertIsDirectory('.bzr/branch', t)
 
87
        self.assertIsDirectory('.bzr/branch/lock', t)
 
88
        branch.lock_write()
 
89
        self.addCleanup(branch.unlock)
 
90
        self.assertIsDirectory('.bzr/branch/lock/held', t)
 
91
 
 
92
    def test_set_push_location(self):
 
93
        conf = config.LocationConfig.from_string('# comment\n', '.', save=True)
 
94
 
 
95
        branch = self.make_branch('.', format='knit')
 
96
        branch.set_push_location('foo')
 
97
        local_path = urlutils.local_path_from_url(branch.base[:-1])
 
98
        self.assertFileEqual("# comment\n"
 
99
                             "[%s]\n"
 
100
                             "push_location = foo\n"
 
101
                             "push_location:policy = norecurse\n" % local_path,
 
102
                             config.locations_config_filename())
 
103
 
 
104
    # TODO RBC 20051029 test getting a push location from a branch in a
 
105
    # recursive section - that is, it appends the branch name.
 
106
 
 
107
 
 
108
class SampleBranchFormat(_mod_branch.BranchFormatMetadir):
 
109
    """A sample format
 
110
 
 
111
    this format is initializable, unsupported to aid in testing the
 
112
    open and open_downlevel routines.
 
113
    """
 
114
 
 
115
    @classmethod
 
116
    def get_format_string(cls):
 
117
        """See BzrBranchFormat.get_format_string()."""
 
118
        return "Sample branch format."
 
119
 
 
120
    def initialize(self, a_bzrdir, name=None, repository=None,
 
121
                   append_revisions_only=None):
 
122
        """Format 4 branches cannot be created."""
 
123
        t = a_bzrdir.get_branch_transport(self, name=name)
 
124
        t.put_bytes('format', self.get_format_string())
 
125
        return 'A branch'
 
126
 
 
127
    def is_supported(self):
 
128
        return False
 
129
 
 
130
    def open(self, transport, name=None, _found=False, ignore_fallbacks=False,
 
131
             possible_transports=None):
 
132
        return "opened branch."
 
133
 
 
134
 
 
135
# Demonstrating how lazy loading is often implemented:
 
136
# A constant string is created.
 
137
SampleSupportedBranchFormatString = "Sample supported branch format."
 
138
 
 
139
# And the format class can then reference the constant to avoid skew.
 
140
class SampleSupportedBranchFormat(_mod_branch.BranchFormatMetadir):
 
141
    """A sample supported format."""
 
142
 
 
143
    @classmethod
 
144
    def get_format_string(cls):
 
145
        """See BzrBranchFormat.get_format_string()."""
 
146
        return SampleSupportedBranchFormatString
 
147
 
 
148
    def initialize(self, a_bzrdir, name=None, append_revisions_only=None):
 
149
        t = a_bzrdir.get_branch_transport(self, name=name)
 
150
        t.put_bytes('format', self.get_format_string())
 
151
        return 'A branch'
 
152
 
 
153
    def open(self, transport, name=None, _found=False, ignore_fallbacks=False,
 
154
             possible_transports=None):
 
155
        return "opened supported branch."
 
156
 
 
157
 
 
158
class SampleExtraBranchFormat(_mod_branch.BranchFormat):
 
159
    """A sample format that is not usable in a metadir."""
 
160
 
 
161
    def get_format_string(self):
 
162
        # This format is not usable in a metadir.
 
163
        return None
 
164
 
 
165
    def network_name(self):
 
166
        # Network name always has to be provided.
 
167
        return "extra"
 
168
 
 
169
    def initialize(self, a_bzrdir, name=None):
 
170
        raise NotImplementedError(self.initialize)
 
171
 
 
172
    def open(self, transport, name=None, _found=False, ignore_fallbacks=False,
 
173
             possible_transports=None):
 
174
        raise NotImplementedError(self.open)
 
175
 
 
176
 
 
177
class TestBzrBranchFormat(tests.TestCaseWithTransport):
 
178
    """Tests for the BzrBranchFormat facility."""
 
179
 
 
180
    def test_find_format(self):
 
181
        # is the right format object found for a branch?
 
182
        # create a branch with a few known format objects.
 
183
        # this is not quite the same as
 
184
        self.build_tree(["foo/", "bar/"])
 
185
        def check_format(format, url):
 
186
            dir = format._matchingbzrdir.initialize(url)
 
187
            dir.create_repository()
 
188
            format.initialize(dir)
 
189
            found_format = _mod_branch.BranchFormatMetadir.find_format(dir)
 
190
            self.assertIsInstance(found_format, format.__class__)
 
191
        check_format(BzrBranchFormat5(), "bar")
 
192
 
 
193
    def test_find_format_factory(self):
 
194
        dir = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
195
        SampleSupportedBranchFormat().initialize(dir)
 
196
        factory = _mod_branch.MetaDirBranchFormatFactory(
 
197
            SampleSupportedBranchFormatString,
 
198
            "bzrlib.tests.test_branch", "SampleSupportedBranchFormat")
 
199
        _mod_branch.format_registry.register(factory)
 
200
        self.addCleanup(_mod_branch.format_registry.remove, factory)
 
201
        b = _mod_branch.Branch.open(self.get_url())
 
202
        self.assertEqual(b, "opened supported branch.")
 
203
 
 
204
    def test_from_string(self):
 
205
        self.assertIsInstance(
 
206
            SampleBranchFormat.from_string("Sample branch format."),
 
207
            SampleBranchFormat)
 
208
        self.assertRaises(AssertionError,
 
209
            SampleBranchFormat.from_string, "Different branch format.")
 
210
 
 
211
    def test_find_format_not_branch(self):
 
212
        dir = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
213
        self.assertRaises(errors.NotBranchError,
 
214
                          _mod_branch.BranchFormatMetadir.find_format,
 
215
                          dir)
 
216
 
 
217
    def test_find_format_unknown_format(self):
 
218
        dir = bzrdir.BzrDirMetaFormat1().initialize(self.get_url())
 
219
        SampleBranchFormat().initialize(dir)
 
220
        self.assertRaises(errors.UnknownFormatError,
 
221
                          _mod_branch.BranchFormatMetadir.find_format,
 
222
                          dir)
 
223
 
 
224
    def test_find_format_with_features(self):
 
225
        tree = self.make_branch_and_tree('.', format='2a')
 
226
        tree.branch.update_feature_flags({"name": "optional"})
 
227
        found_format = _mod_branch.BranchFormatMetadir.find_format(tree.bzrdir)
 
228
        self.assertIsInstance(found_format, _mod_branch.BranchFormatMetadir)
 
229
        self.assertEquals(found_format.features.get("name"), "optional")
 
230
        tree.branch.update_feature_flags({"name": None})
 
231
        branch = _mod_branch.Branch.open('.')
 
232
        self.assertEquals(branch._format.features, {})
 
233
 
 
234
 
 
235
class TestBranchFormatRegistry(tests.TestCase):
 
236
 
 
237
    def setUp(self):
 
238
        super(TestBranchFormatRegistry, self).setUp()
 
239
        self.registry = _mod_branch.BranchFormatRegistry()
 
240
 
 
241
    def test_default(self):
 
242
        self.assertIs(None, self.registry.get_default())
 
243
        format = SampleBranchFormat()
 
244
        self.registry.set_default(format)
 
245
        self.assertEquals(format, self.registry.get_default())
 
246
 
 
247
    def test_register_unregister_format(self):
 
248
        format = SampleBranchFormat()
 
249
        self.registry.register(format)
 
250
        self.assertEquals(format,
 
251
            self.registry.get("Sample branch format."))
 
252
        self.registry.remove(format)
 
253
        self.assertRaises(KeyError, self.registry.get,
 
254
            "Sample branch format.")
 
255
 
 
256
    def test_get_all(self):
 
257
        format = SampleBranchFormat()
 
258
        self.assertEquals([], self.registry._get_all())
 
259
        self.registry.register(format)
 
260
        self.assertEquals([format], self.registry._get_all())
 
261
 
 
262
    def test_register_extra(self):
 
263
        format = SampleExtraBranchFormat()
 
264
        self.assertEquals([], self.registry._get_all())
 
265
        self.registry.register_extra(format)
 
266
        self.assertEquals([format], self.registry._get_all())
 
267
 
 
268
    def test_register_extra_lazy(self):
 
269
        self.assertEquals([], self.registry._get_all())
 
270
        self.registry.register_extra_lazy("bzrlib.tests.test_branch",
 
271
            "SampleExtraBranchFormat")
 
272
        formats = self.registry._get_all()
 
273
        self.assertEquals(1, len(formats))
 
274
        self.assertIsInstance(formats[0], SampleExtraBranchFormat)
 
275
 
 
276
 
 
277
#Used by TestMetaDirBranchFormatFactory 
 
278
FakeLazyFormat = None
 
279
 
 
280
 
 
281
class TestMetaDirBranchFormatFactory(tests.TestCase):
 
282
 
 
283
    def test_get_format_string_does_not_load(self):
 
284
        """Formats have a static format string."""
 
285
        factory = _mod_branch.MetaDirBranchFormatFactory("yo", None, None)
 
286
        self.assertEqual("yo", factory.get_format_string())
 
287
 
 
288
    def test_call_loads(self):
 
289
        # __call__ is used by the network_format_registry interface to get a
 
290
        # Format.
 
291
        global FakeLazyFormat
 
292
        del FakeLazyFormat
 
293
        factory = _mod_branch.MetaDirBranchFormatFactory(None,
 
294
            "bzrlib.tests.test_branch", "FakeLazyFormat")
 
295
        self.assertRaises(AttributeError, factory)
 
296
 
 
297
    def test_call_returns_call_of_referenced_object(self):
 
298
        global FakeLazyFormat
 
299
        FakeLazyFormat = lambda:'called'
 
300
        factory = _mod_branch.MetaDirBranchFormatFactory(None,
 
301
            "bzrlib.tests.test_branch", "FakeLazyFormat")
 
302
        self.assertEqual('called', factory())
 
303
 
 
304
 
 
305
class TestBranch67(object):
 
306
    """Common tests for both branch 6 and 7 which are mostly the same."""
 
307
 
 
308
    def get_format_name(self):
 
309
        raise NotImplementedError(self.get_format_name)
 
310
 
 
311
    def get_format_name_subtree(self):
 
312
        raise NotImplementedError(self.get_format_name)
 
313
 
 
314
    def get_class(self):
 
315
        raise NotImplementedError(self.get_class)
 
316
 
 
317
    def test_creation(self):
 
318
        format = bzrdir.BzrDirMetaFormat1()
 
319
        format.set_branch_format(_mod_branch.BzrBranchFormat6())
 
320
        branch = self.make_branch('a', format=format)
 
321
        self.assertIsInstance(branch, self.get_class())
 
322
        branch = self.make_branch('b', format=self.get_format_name())
 
323
        self.assertIsInstance(branch, self.get_class())
 
324
        branch = _mod_branch.Branch.open('a')
 
325
        self.assertIsInstance(branch, self.get_class())
 
326
 
 
327
    def test_layout(self):
 
328
        branch = self.make_branch('a', format=self.get_format_name())
 
329
        self.assertPathExists('a/.bzr/branch/last-revision')
 
330
        self.assertPathDoesNotExist('a/.bzr/branch/revision-history')
 
331
        self.assertPathDoesNotExist('a/.bzr/branch/references')
 
332
 
 
333
    def test_config(self):
 
334
        """Ensure that all configuration data is stored in the branch"""
 
335
        branch = self.make_branch('a', format=self.get_format_name())
 
336
        branch.set_parent('http://example.com')
 
337
        self.assertPathDoesNotExist('a/.bzr/branch/parent')
 
338
        self.assertEqual('http://example.com', branch.get_parent())
 
339
        branch.set_push_location('sftp://example.com')
 
340
        conf = branch.get_config_stack()
 
341
        self.assertEqual('sftp://example.com', conf.get('push_location'))
 
342
        branch.set_bound_location('ftp://example.com')
 
343
        self.assertPathDoesNotExist('a/.bzr/branch/bound')
 
344
        self.assertEqual('ftp://example.com', branch.get_bound_location())
 
345
 
 
346
    def do_checkout_test(self, lightweight=False):
 
347
        tree = self.make_branch_and_tree('source',
 
348
            format=self.get_format_name_subtree())
 
349
        subtree = self.make_branch_and_tree('source/subtree',
 
350
            format=self.get_format_name_subtree())
 
351
        subsubtree = self.make_branch_and_tree('source/subtree/subsubtree',
 
352
            format=self.get_format_name_subtree())
 
353
        self.build_tree(['source/subtree/file',
 
354
                         'source/subtree/subsubtree/file'])
 
355
        subsubtree.add('file')
 
356
        subtree.add('file')
 
357
        subtree.add_reference(subsubtree)
 
358
        tree.add_reference(subtree)
 
359
        tree.commit('a revision')
 
360
        subtree.commit('a subtree file')
 
361
        subsubtree.commit('a subsubtree file')
 
362
        tree.branch.create_checkout('target', lightweight=lightweight)
 
363
        self.assertPathExists('target')
 
364
        self.assertPathExists('target/subtree')
 
365
        self.assertPathExists('target/subtree/file')
 
366
        self.assertPathExists('target/subtree/subsubtree/file')
 
367
        subbranch = _mod_branch.Branch.open('target/subtree/subsubtree')
 
368
        if lightweight:
 
369
            self.assertEndsWith(subbranch.base, 'source/subtree/subsubtree/')
 
370
        else:
 
371
            self.assertEndsWith(subbranch.base, 'target/subtree/subsubtree/')
 
372
 
 
373
    def test_checkout_with_references(self):
 
374
        self.do_checkout_test()
 
375
 
 
376
    def test_light_checkout_with_references(self):
 
377
        self.do_checkout_test(lightweight=True)
 
378
 
 
379
 
 
380
class TestBranch6(TestBranch67, tests.TestCaseWithTransport):
 
381
 
 
382
    def get_class(self):
 
383
        return _mod_branch.BzrBranch6
 
384
 
 
385
    def get_format_name(self):
 
386
        return "dirstate-tags"
 
387
 
 
388
    def get_format_name_subtree(self):
 
389
        return "dirstate-with-subtree"
 
390
 
 
391
    def test_set_stacked_on_url_errors(self):
 
392
        branch = self.make_branch('a', format=self.get_format_name())
 
393
        self.assertRaises(errors.UnstackableBranchFormat,
 
394
            branch.set_stacked_on_url, None)
 
395
 
 
396
    def test_default_stacked_location(self):
 
397
        branch = self.make_branch('a', format=self.get_format_name())
 
398
        self.assertRaises(errors.UnstackableBranchFormat, branch.get_stacked_on_url)
 
399
 
 
400
 
 
401
class TestBranch7(TestBranch67, tests.TestCaseWithTransport):
 
402
 
 
403
    def get_class(self):
 
404
        return _mod_branch.BzrBranch7
 
405
 
 
406
    def get_format_name(self):
 
407
        return "1.9"
 
408
 
 
409
    def get_format_name_subtree(self):
 
410
        return "development-subtree"
 
411
 
 
412
    def test_set_stacked_on_url_unstackable_repo(self):
 
413
        repo = self.make_repository('a', format='dirstate-tags')
 
414
        control = repo.bzrdir
 
415
        branch = _mod_branch.BzrBranchFormat7().initialize(control)
 
416
        target = self.make_branch('b')
 
417
        self.assertRaises(errors.UnstackableRepositoryFormat,
 
418
            branch.set_stacked_on_url, target.base)
 
419
 
 
420
    def test_clone_stacked_on_unstackable_repo(self):
 
421
        repo = self.make_repository('a', format='dirstate-tags')
 
422
        control = repo.bzrdir
 
423
        branch = _mod_branch.BzrBranchFormat7().initialize(control)
 
424
        # Calling clone should not raise UnstackableRepositoryFormat.
 
425
        cloned_bzrdir = control.clone('cloned')
 
426
 
 
427
    def _test_default_stacked_location(self):
 
428
        branch = self.make_branch('a', format=self.get_format_name())
 
429
        self.assertRaises(errors.NotStacked, branch.get_stacked_on_url)
 
430
 
 
431
    def test_stack_and_unstack(self):
 
432
        branch = self.make_branch('a', format=self.get_format_name())
 
433
        target = self.make_branch_and_tree('b', format=self.get_format_name())
 
434
        branch.set_stacked_on_url(target.branch.base)
 
435
        self.assertEqual(target.branch.base, branch.get_stacked_on_url())
 
436
        revid = target.commit('foo')
 
437
        self.assertTrue(branch.repository.has_revision(revid))
 
438
        branch.set_stacked_on_url(None)
 
439
        self.assertRaises(errors.NotStacked, branch.get_stacked_on_url)
 
440
        self.assertFalse(branch.repository.has_revision(revid))
 
441
 
 
442
    def test_open_opens_stacked_reference(self):
 
443
        branch = self.make_branch('a', format=self.get_format_name())
 
444
        target = self.make_branch_and_tree('b', format=self.get_format_name())
 
445
        branch.set_stacked_on_url(target.branch.base)
 
446
        branch = branch.bzrdir.open_branch()
 
447
        revid = target.commit('foo')
 
448
        self.assertTrue(branch.repository.has_revision(revid))
 
449
 
 
450
 
 
451
class BzrBranch8(tests.TestCaseWithTransport):
 
452
 
 
453
    def make_branch(self, location, format=None):
 
454
        if format is None:
 
455
            format = controldir.format_registry.make_bzrdir('1.9')
 
456
            format.set_branch_format(_mod_branch.BzrBranchFormat8())
 
457
        return tests.TestCaseWithTransport.make_branch(
 
458
            self, location, format=format)
 
459
 
 
460
    def create_branch_with_reference(self):
 
461
        branch = self.make_branch('branch')
 
462
        branch._set_all_reference_info({'file-id': ('path', 'location')})
 
463
        return branch
 
464
 
 
465
    @staticmethod
 
466
    def instrument_branch(branch, gets):
 
467
        old_get = branch._transport.get
 
468
        def get(*args, **kwargs):
 
469
            gets.append((args, kwargs))
 
470
            return old_get(*args, **kwargs)
 
471
        branch._transport.get = get
 
472
 
 
473
    def test_reference_info_caching_read_locked(self):
 
474
        gets = []
 
475
        branch = self.create_branch_with_reference()
 
476
        branch.lock_read()
 
477
        self.addCleanup(branch.unlock)
 
478
        self.instrument_branch(branch, gets)
 
479
        branch.get_reference_info('file-id')
 
480
        branch.get_reference_info('file-id')
 
481
        self.assertEqual(1, len(gets))
 
482
 
 
483
    def test_reference_info_caching_read_unlocked(self):
 
484
        gets = []
 
485
        branch = self.create_branch_with_reference()
 
486
        self.instrument_branch(branch, gets)
 
487
        branch.get_reference_info('file-id')
 
488
        branch.get_reference_info('file-id')
 
489
        self.assertEqual(2, len(gets))
 
490
 
 
491
    def test_reference_info_caching_write_locked(self):
 
492
        gets = []
 
493
        branch = self.make_branch('branch')
 
494
        branch.lock_write()
 
495
        self.instrument_branch(branch, gets)
 
496
        self.addCleanup(branch.unlock)
 
497
        branch._set_all_reference_info({'file-id': ('path2', 'location2')})
 
498
        path, location = branch.get_reference_info('file-id')
 
499
        self.assertEqual(0, len(gets))
 
500
        self.assertEqual('path2', path)
 
501
        self.assertEqual('location2', location)
 
502
 
 
503
    def test_reference_info_caches_cleared(self):
 
504
        branch = self.make_branch('branch')
 
505
        branch.lock_write()
 
506
        branch.set_reference_info('file-id', 'path2', 'location2')
 
507
        branch.unlock()
 
508
        doppelganger = _mod_branch.Branch.open('branch')
 
509
        doppelganger.set_reference_info('file-id', 'path3', 'location3')
 
510
        self.assertEqual(('path3', 'location3'),
 
511
                         branch.get_reference_info('file-id'))
 
512
 
 
513
    def _recordParentMapCalls(self, repo):
 
514
        self._parent_map_calls = []
 
515
        orig_get_parent_map = repo.revisions.get_parent_map
 
516
        def get_parent_map(q):
 
517
            q = list(q)
 
518
            self._parent_map_calls.extend([e[0] for e in q])
 
519
            return orig_get_parent_map(q)
 
520
        repo.revisions.get_parent_map = get_parent_map
 
521
 
 
522
 
 
523
class TestBranchReference(tests.TestCaseWithTransport):
 
524
    """Tests for the branch reference facility."""
 
525
 
 
526
    def test_create_open_reference(self):
 
527
        bzrdirformat = bzrdir.BzrDirMetaFormat1()
 
528
        t = self.get_transport()
 
529
        t.mkdir('repo')
 
530
        dir = bzrdirformat.initialize(self.get_url('repo'))
 
531
        dir.create_repository()
 
532
        target_branch = dir.create_branch()
 
533
        t.mkdir('branch')
 
534
        branch_dir = bzrdirformat.initialize(self.get_url('branch'))
 
535
        made_branch = _mod_branch.BranchReferenceFormat().initialize(
 
536
            branch_dir, target_branch=target_branch)
 
537
        self.assertEqual(made_branch.base, target_branch.base)
 
538
        opened_branch = branch_dir.open_branch()
 
539
        self.assertEqual(opened_branch.base, target_branch.base)
 
540
 
 
541
    def test_get_reference(self):
 
542
        """For a BranchReference, get_reference should return the location."""
 
543
        branch = self.make_branch('target')
 
544
        checkout = branch.create_checkout('checkout', lightweight=True)
 
545
        reference_url = branch.bzrdir.root_transport.abspath('') + '/'
 
546
        # if the api for create_checkout changes to return different checkout types
 
547
        # then this file read will fail.
 
548
        self.assertFileEqual(reference_url, 'checkout/.bzr/branch/location')
 
549
        self.assertEqual(reference_url,
 
550
            _mod_branch.BranchReferenceFormat().get_reference(checkout.bzrdir))
 
551
 
 
552
 
 
553
class TestHooks(tests.TestCaseWithTransport):
 
554
 
 
555
    def test_constructor(self):
 
556
        """Check that creating a BranchHooks instance has the right defaults."""
 
557
        hooks = _mod_branch.BranchHooks()
 
558
        self.assertTrue("post_push" in hooks, "post_push not in %s" % hooks)
 
559
        self.assertTrue("post_commit" in hooks, "post_commit not in %s" % hooks)
 
560
        self.assertTrue("pre_commit" in hooks, "pre_commit not in %s" % hooks)
 
561
        self.assertTrue("post_pull" in hooks, "post_pull not in %s" % hooks)
 
562
        self.assertTrue("post_uncommit" in hooks,
 
563
                        "post_uncommit not in %s" % hooks)
 
564
        self.assertTrue("post_change_branch_tip" in hooks,
 
565
                        "post_change_branch_tip not in %s" % hooks)
 
566
        self.assertTrue("post_branch_init" in hooks,
 
567
                        "post_branch_init not in %s" % hooks)
 
568
        self.assertTrue("post_switch" in hooks,
 
569
                        "post_switch not in %s" % hooks)
 
570
 
 
571
    def test_installed_hooks_are_BranchHooks(self):
 
572
        """The installed hooks object should be a BranchHooks."""
 
573
        # the installed hooks are saved in self._preserved_hooks.
 
574
        self.assertIsInstance(self._preserved_hooks[_mod_branch.Branch][1],
 
575
                              _mod_branch.BranchHooks)
 
576
 
 
577
    def test_post_branch_init_hook(self):
 
578
        calls = []
 
579
        _mod_branch.Branch.hooks.install_named_hook('post_branch_init',
 
580
            calls.append, None)
 
581
        self.assertLength(0, calls)
 
582
        branch = self.make_branch('a')
 
583
        self.assertLength(1, calls)
 
584
        params = calls[0]
 
585
        self.assertIsInstance(params, _mod_branch.BranchInitHookParams)
 
586
        self.assertTrue(hasattr(params, 'bzrdir'))
 
587
        self.assertTrue(hasattr(params, 'branch'))
 
588
 
 
589
    def test_post_branch_init_hook_repr(self):
 
590
        param_reprs = []
 
591
        _mod_branch.Branch.hooks.install_named_hook('post_branch_init',
 
592
            lambda params: param_reprs.append(repr(params)), None)
 
593
        branch = self.make_branch('a')
 
594
        self.assertLength(1, param_reprs)
 
595
        param_repr = param_reprs[0]
 
596
        self.assertStartsWith(param_repr, '<BranchInitHookParams of ')
 
597
 
 
598
    def test_post_switch_hook(self):
 
599
        from bzrlib import switch
 
600
        calls = []
 
601
        _mod_branch.Branch.hooks.install_named_hook('post_switch',
 
602
            calls.append, None)
 
603
        tree = self.make_branch_and_tree('branch-1')
 
604
        self.build_tree(['branch-1/file-1'])
 
605
        tree.add('file-1')
 
606
        tree.commit('rev1')
 
607
        to_branch = tree.bzrdir.sprout('branch-2').open_branch()
 
608
        self.build_tree(['branch-1/file-2'])
 
609
        tree.add('file-2')
 
610
        tree.remove('file-1')
 
611
        tree.commit('rev2')
 
612
        checkout = tree.branch.create_checkout('checkout')
 
613
        self.assertLength(0, calls)
 
614
        switch.switch(checkout.bzrdir, to_branch)
 
615
        self.assertLength(1, calls)
 
616
        params = calls[0]
 
617
        self.assertIsInstance(params, _mod_branch.SwitchHookParams)
 
618
        self.assertTrue(hasattr(params, 'to_branch'))
 
619
        self.assertTrue(hasattr(params, 'revision_id'))
 
620
 
 
621
 
 
622
class TestBranchOptions(tests.TestCaseWithTransport):
 
623
 
 
624
    def setUp(self):
 
625
        super(TestBranchOptions, self).setUp()
 
626
        self.branch = self.make_branch('.')
 
627
        self.config_stack = self.branch.get_config_stack()
 
628
 
 
629
    def check_append_revisions_only(self, expected_value, value=None):
 
630
        """Set append_revisions_only in config and check its interpretation."""
 
631
        if value is not None:
 
632
            self.config_stack.set('append_revisions_only', value)
 
633
        self.assertEqual(expected_value,
 
634
                         self.branch.get_append_revisions_only())
 
635
 
 
636
    def test_valid_append_revisions_only(self):
 
637
        self.assertEquals(None,
 
638
                          self.config_stack.get('append_revisions_only'))
 
639
        self.check_append_revisions_only(None)
 
640
        self.check_append_revisions_only(False, 'False')
 
641
        self.check_append_revisions_only(True, 'True')
 
642
        # The following values will cause compatibility problems on projects
 
643
        # using older bzr versions (<2.2) but are accepted
 
644
        self.check_append_revisions_only(False, 'false')
 
645
        self.check_append_revisions_only(True, 'true')
 
646
 
 
647
    def test_invalid_append_revisions_only(self):
 
648
        """Ensure warning is noted on invalid settings"""
 
649
        self.warnings = []
 
650
        def warning(*args):
 
651
            self.warnings.append(args[0] % args[1:])
 
652
        self.overrideAttr(trace, 'warning', warning)
 
653
        self.check_append_revisions_only(None, 'not-a-bool')
 
654
        self.assertLength(1, self.warnings)
 
655
        self.assertEqual(
 
656
            'Value "not-a-bool" is not valid for "append_revisions_only"',
 
657
            self.warnings[0])
 
658
 
 
659
    def test_use_fresh_values(self):
 
660
        copy = _mod_branch.Branch.open(self.branch.base)
 
661
        copy.lock_write()
 
662
        try:
 
663
            copy.get_config_stack().set('foo', 'bar')
 
664
        finally:
 
665
            copy.unlock()
 
666
        self.assertFalse(self.branch.is_locked())
 
667
        # Since the branch is locked, the option value won't be saved on disk
 
668
        # so trying to access the config of locked branch via another older
 
669
        # non-locked branch object pointing to the same branch is not supported
 
670
        self.assertEqual(None, self.branch.get_config_stack().get('foo'))
 
671
        # Using a newly created branch object works as expected
 
672
        fresh = _mod_branch.Branch.open(self.branch.base)
 
673
        self.assertEqual('bar', fresh.get_config_stack().get('foo'))
 
674
 
 
675
    def test_set_from_config_get_from_config_stack(self):
 
676
        self.branch.lock_write()
 
677
        self.addCleanup(self.branch.unlock)
 
678
        self.branch.get_config().set_user_option('foo', 'bar')
 
679
        result = self.branch.get_config_stack().get('foo')
 
680
        # https://bugs.launchpad.net/bzr/+bug/948344
 
681
        self.expectFailure('BranchStack uses cache after set_user_option',
 
682
                           self.assertEqual, 'bar', result)
 
683
 
 
684
    def test_set_from_config_stack_get_from_config(self):
 
685
        self.branch.lock_write()
 
686
        self.addCleanup(self.branch.unlock)
 
687
        self.branch.get_config_stack().set('foo', 'bar')
 
688
        # Since the branch is locked, the option value won't be saved on disk
 
689
        # so mixing get() and get_user_option() is broken by design.
 
690
        self.assertEqual(None,
 
691
                         self.branch.get_config().get_user_option('foo'))
 
692
 
 
693
    def test_set_delays_write_when_branch_is_locked(self):
 
694
        self.branch.lock_write()
 
695
        self.addCleanup(self.branch.unlock)
 
696
        self.branch.get_config_stack().set('foo', 'bar')
 
697
        copy = _mod_branch.Branch.open(self.branch.base)
 
698
        result = copy.get_config_stack().get('foo')
 
699
        # Accessing from a different branch object is like accessing from a
 
700
        # different process: the option has not been saved yet and the new
 
701
        # value cannot be seen.
 
702
        self.assertIs(None, result)
 
703
 
 
704
 
 
705
class TestPullResult(tests.TestCase):
 
706
 
 
707
    def test_report_changed(self):
 
708
        r = _mod_branch.PullResult()
 
709
        r.old_revid = "old-revid"
 
710
        r.old_revno = 10
 
711
        r.new_revid = "new-revid"
 
712
        r.new_revno = 20
 
713
        f = StringIO()
 
714
        r.report(f)
 
715
        self.assertEqual("Now on revision 20.\n", f.getvalue())
 
716
        self.assertEqual("Now on revision 20.\n", f.getvalue())
 
717
 
 
718
    def test_report_unchanged(self):
 
719
        r = _mod_branch.PullResult()
 
720
        r.old_revid = "same-revid"
 
721
        r.new_revid = "same-revid"
 
722
        f = StringIO()
 
723
        r.report(f)
 
724
        self.assertEqual("No revisions or tags to pull.\n", f.getvalue())