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Viewing changes to bzrlib/tests/test_bzrdir.py

  • Committer: Mark Hammond
  • Date: 2009-01-12 01:55:34 UTC
  • mto: (3995.8.2 prepare-1.12)
  • mto: This revision was merged to the branch mainline in revision 4007.
  • Revision ID: mhammond@skippinet.com.au-20090112015534-yfxg50p7mpds9j4v
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bzrlib/tests/test_bzrdir.py
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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17
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"""Tests for the BzrDir facility and any format specific tests.
18
18
 
19
 
For interface contract tests, see tests/per_bzr_dir.
 
19
For interface contract tests, see tests/bzr_dir_implementations.
20
20
"""
21
21
 
22
22
import os
 
23
import os.path
 
24
from StringIO import StringIO
23
25
import subprocess
24
26
import sys
25
27
 
29
31
    help_topics,
30
32
    repository,
31
33
    osutils,
32
 
    remote,
 
34
    symbol_versioning,
33
35
    urlutils,
34
36
    win32utils,
35
37
    workingtree,
44
46
    TestCaseWithMemoryTransport,
45
47
    TestCaseWithTransport,
46
48
    TestSkipped,
 
49
    test_sftp_transport
47
50
    )
48
51
from bzrlib.tests import(
49
52
    http_server,
55
58
from bzrlib.transport.memory import MemoryServer
56
59
from bzrlib.transport.nosmart import NoSmartTransportDecorator
57
60
from bzrlib.transport.readonly import ReadonlyTransportDecorator
58
 
from bzrlib.repofmt import knitrepo, weaverepo, pack_repo
 
61
from bzrlib.repofmt import knitrepo, weaverepo
59
62
 
60
63
 
61
64
class TestDefaultFormat(TestCase):
81
84
        my_format_registry.register('weave', bzrdir.BzrDirFormat6,
82
85
            'Pre-0.8 format.  Slower and does not support checkouts or shared'
83
86
            ' repositories', deprecated=True)
84
 
        my_format_registry.register_lazy('lazy', 'bzrlib.bzrdir',
 
87
        my_format_registry.register_lazy('lazy', 'bzrlib.bzrdir', 
85
88
            'BzrDirFormat6', 'Format registered lazily', deprecated=True)
86
89
        my_format_registry.register_metadir('knit',
87
90
            'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
114
117
        my_bzrdir = my_format_registry.make_bzrdir('weave')
115
118
        self.assertIsInstance(my_bzrdir, bzrdir.BzrDirFormat6)
116
119
        my_bzrdir = my_format_registry.make_bzrdir('default')
117
 
        self.assertIsInstance(my_bzrdir.repository_format,
 
120
        self.assertIsInstance(my_bzrdir.repository_format, 
118
121
            knitrepo.RepositoryFormatKnit1)
119
122
        my_bzrdir = my_format_registry.make_bzrdir('knit')
120
 
        self.assertIsInstance(my_bzrdir.repository_format,
 
123
        self.assertIsInstance(my_bzrdir.repository_format, 
121
124
            knitrepo.RepositoryFormatKnit1)
122
125
        my_bzrdir = my_format_registry.make_bzrdir('branch6')
123
126
        self.assertIsInstance(my_bzrdir.get_branch_format(),
127
130
        my_format_registry = self.make_format_registry()
128
131
        self.assertEqual('Format registered lazily',
129
132
                         my_format_registry.get_help('lazy'))
130
 
        self.assertEqual('Format using knits',
 
133
        self.assertEqual('Format using knits', 
131
134
                         my_format_registry.get_help('knit'))
132
 
        self.assertEqual('Format using knits',
 
135
        self.assertEqual('Format using knits', 
133
136
                         my_format_registry.get_help('default'))
134
137
        self.assertEqual('Pre-0.8 format.  Slower and does not support'
135
 
                         ' checkouts or shared repositories',
 
138
                         ' checkouts or shared repositories', 
136
139
                         my_format_registry.get_help('weave'))
137
 
 
 
140
        
138
141
    def test_help_topic(self):
139
142
        topics = help_topics.HelpTopicRegistry()
140
143
        registry = self.make_format_registry()
141
 
        topics.register('current-formats', registry.help_topic,
 
144
        topics.register('current-formats', registry.help_topic, 
142
145
                        'Current formats')
143
 
        topics.register('other-formats', registry.help_topic,
 
146
        topics.register('other-formats', registry.help_topic, 
144
147
                        'Other formats')
145
148
        new = topics.get_detail('current-formats')
146
149
        rest = topics.get_detail('other-formats')
147
150
        experimental, deprecated = rest.split('Deprecated formats')
148
 
        self.assertContainsRe(new, 'formats-help')
149
 
        self.assertContainsRe(new,
 
151
        self.assertContainsRe(new, 'bzr help formats')
 
152
        self.assertContainsRe(new, 
150
153
                ':knit:\n    \(native\) \(default\) Format using knits\n')
151
 
        self.assertContainsRe(experimental,
 
154
        self.assertContainsRe(experimental, 
152
155
                ':branch6:\n    \(native\) Experimental successor to knit')
153
 
        self.assertContainsRe(deprecated,
 
156
        self.assertContainsRe(deprecated, 
154
157
                ':lazy:\n    \(native\) Format registered lazily\n')
155
158
        self.assertNotContainsRe(new, 'hidden')
156
159
 
177
180
            'Pre-0.8 format.  Slower and does not support checkouts or shared'
178
181
            ' repositories', deprecated=True, alias=True)
179
182
        self.assertEqual(frozenset(['weavealias']), a_registry.aliases())
180
 
 
 
183
    
181
184
 
182
185
class SampleBranch(bzrlib.branch.Branch):
183
186
    """A dummy branch for guess what, dummy use."""
186
189
        self.bzrdir = dir
187
190
 
188
191
 
189
 
class SampleRepository(bzrlib.repository.Repository):
190
 
    """A dummy repo."""
191
 
 
192
 
    def __init__(self, dir):
193
 
        self.bzrdir = dir
194
 
 
195
 
 
196
192
class SampleBzrDir(bzrdir.BzrDir):
197
193
    """A sample BzrDir implementation to allow testing static methods."""
198
194
 
202
198
 
203
199
    def open_repository(self):
204
200
        """See BzrDir.open_repository."""
205
 
        return SampleRepository(self)
 
201
        return "A repository"
206
202
 
207
203
    def create_branch(self):
208
204
        """See BzrDir.create_branch."""
216
212
class SampleBzrDirFormat(bzrdir.BzrDirFormat):
217
213
    """A sample format
218
214
 
219
 
    this format is initializable, unsupported to aid in testing the
 
215
    this format is initializable, unsupported to aid in testing the 
220
216
    open and open_downlevel routines.
221
217
    """
222
218
 
243
239
    def test_find_format(self):
244
240
        # is the right format object found for a branch?
245
241
        # create a branch with a few known format objects.
246
 
        # this is not quite the same as
 
242
        # this is not quite the same as 
247
243
        t = get_transport(self.get_url())
248
244
        self.build_tree(["foo/", "bar/"], transport=t)
249
245
        def check_format(format, url):
253
249
            self.failUnless(isinstance(found_format, format.__class__))
254
250
        check_format(bzrdir.BzrDirFormat5(), "foo")
255
251
        check_format(bzrdir.BzrDirFormat6(), "bar")
256
 
 
 
252
        
257
253
    def test_find_format_nothing_there(self):
258
254
        self.assertRaises(NotBranchError,
259
255
                          bzrdir.BzrDirFormat.find_format,
303
299
                          branch.bzrdir.open_repository)
304
300
 
305
301
    def test_create_branch_and_repo_under_shared_force_new(self):
306
 
        # creating a branch and repo in a shared repo can be forced to
 
302
        # creating a branch and repo in a shared repo can be forced to 
307
303
        # make a new repo
308
304
        format = bzrdir.format_registry.make_bzrdir('knit')
309
305
        self.make_repository('.', shared=True, format=format)
314
310
 
315
311
    def test_create_standalone_working_tree(self):
316
312
        format = SampleBzrDirFormat()
317
 
        # note this is deliberately readonly, as this failure should
 
313
        # note this is deliberately readonly, as this failure should 
318
314
        # occur before any writes.
319
315
        self.assertRaises(errors.NotLocalUrl,
320
316
                          bzrdir.BzrDir.create_standalone_workingtree,
321
317
                          self.get_readonly_url(), format=format)
322
 
        tree = bzrdir.BzrDir.create_standalone_workingtree('.',
 
318
        tree = bzrdir.BzrDir.create_standalone_workingtree('.', 
323
319
                                                           format=format)
324
320
        self.assertEqual('A tree', tree)
325
321
 
327
323
        # create standalone working tree always makes a repo.
328
324
        format = bzrdir.format_registry.make_bzrdir('knit')
329
325
        self.make_repository('.', shared=True, format=format)
330
 
        # note this is deliberately readonly, as this failure should
 
326
        # note this is deliberately readonly, as this failure should 
331
327
        # occur before any writes.
332
328
        self.assertRaises(errors.NotLocalUrl,
333
329
                          bzrdir.BzrDir.create_standalone_workingtree,
334
330
                          self.get_readonly_url('child'), format=format)
335
 
        tree = bzrdir.BzrDir.create_standalone_workingtree('child',
 
331
        tree = bzrdir.BzrDir.create_standalone_workingtree('child', 
336
332
            format=format)
337
333
        tree.bzrdir.open_repository()
338
334
 
357
353
        self.vfs_transport_factory = MemoryServer
358
354
        # outside a repo the default convenience output is a repo+branch_tree
359
355
        format = bzrdir.format_registry.make_bzrdir('knit')
360
 
        branch = bzrdir.BzrDir.create_branch_convenience(self.get_url(),
 
356
        branch = bzrdir.BzrDir.create_branch_convenience(self.get_url(), 
361
357
                                                         format=format)
362
358
        self.assertRaises(errors.NoWorkingTree,
363
359
                          branch.bzrdir.open_workingtree)
373
369
        branch.bzrdir.open_workingtree()
374
370
        self.assertRaises(errors.NoRepositoryPresent,
375
371
                          branch.bzrdir.open_repository)
376
 
 
 
372
            
377
373
    def test_create_branch_convenience_under_shared_repo_force_no_tree(self):
378
374
        # inside a repo the default convenience output is a branch+ follow the
379
375
        # repo tree policy but we can override that
385
381
                          branch.bzrdir.open_workingtree)
386
382
        self.assertRaises(errors.NoRepositoryPresent,
387
383
                          branch.bzrdir.open_repository)
388
 
 
 
384
            
389
385
    def test_create_branch_convenience_under_shared_repo_no_tree_policy(self):
390
386
        # inside a repo the default convenience output is a branch+ follow the
391
387
        # repo tree policy
392
388
        format = bzrdir.format_registry.make_bzrdir('knit')
393
389
        repo = self.make_repository('.', shared=True, format=format)
394
390
        repo.set_make_working_trees(False)
395
 
        branch = bzrdir.BzrDir.create_branch_convenience('child',
 
391
        branch = bzrdir.BzrDir.create_branch_convenience('child', 
396
392
                                                         format=format)
397
393
        self.assertRaises(errors.NoWorkingTree,
398
394
                          branch.bzrdir.open_workingtree)
428
424
        """The default acquisition policy should create a standalone branch."""
429
425
        my_bzrdir = self.make_bzrdir('.')
430
426
        repo_policy = my_bzrdir.determine_repository_policy()
431
 
        repo, is_new = repo_policy.acquire_repository()
 
427
        repo = repo_policy.acquire_repository()
432
428
        self.assertEqual(repo.bzrdir.root_transport.base,
433
429
                         my_bzrdir.root_transport.base)
434
430
        self.assertFalse(repo.is_shared())
435
431
 
 
432
 
436
433
    def test_determine_stacking_policy(self):
437
434
        parent_bzrdir = self.make_bzrdir('.')
438
435
        child_bzrdir = self.make_bzrdir('child')
462
459
        self.assertEqual(child_branch.base,
463
460
                         new_child.open_branch().get_stacked_on_url())
464
461
 
465
 
    def test_default_stacking_with_stackable_branch_unstackable_repo(self):
466
 
        # Make stackable source branch with an unstackable repo format.
467
 
        source_bzrdir = self.make_bzrdir('source')
468
 
        pack_repo.RepositoryFormatKnitPack1().initialize(source_bzrdir)
469
 
        source_branch = bzrlib.branch.BzrBranchFormat7().initialize(source_bzrdir)
470
 
        # Make a directory with a default stacking policy
471
 
        parent_bzrdir = self.make_bzrdir('parent')
472
 
        stacked_on = self.make_branch('parent/stacked-on', format='pack-0.92')
473
 
        parent_bzrdir.get_config().set_default_stack_on(stacked_on.base)
474
 
        # Clone source into directory
475
 
        target = source_bzrdir.clone(self.get_url('parent/target'))
476
 
 
477
462
    def test_sprout_obeys_stacking_policy(self):
478
463
        child_branch, new_child_transport = self.prepare_default_stacking()
479
464
        new_child = child_branch.bzrdir.sprout(new_child_transport.base)
733
718
        opened_bzrdir = bzrdir.BzrDir.open_from_transport(transport)
734
719
        self.assertEqual(transport.base, opened_bzrdir.root_transport.base)
735
720
        self.assertIsInstance(opened_bzrdir, bzrdir.BzrDir)
736
 
 
 
721
        
737
722
    def test_open_from_transport_no_bzrdir(self):
738
723
        transport = get_transport(self.get_url())
739
724
        self.assertRaises(NotBranchError, bzrdir.BzrDir.open_from_transport,
748
733
                          transport)
749
734
 
750
735
    def test_sprout_recursive(self):
751
 
        tree = self.make_branch_and_tree('tree1',
752
 
                                         format='dirstate-with-subtree')
 
736
        tree = self.make_branch_and_tree('tree1', format='dirstate-with-subtree')
753
737
        sub_tree = self.make_branch_and_tree('tree1/subtree',
754
738
            format='dirstate-with-subtree')
755
 
        sub_tree.set_root_id('subtree-root')
756
739
        tree.add_reference(sub_tree)
757
740
        self.build_tree(['tree1/subtree/file'])
758
741
        sub_tree.add('file')
759
742
        tree.commit('Initial commit')
760
 
        tree2 = tree.bzrdir.sprout('tree2').open_workingtree()
761
 
        tree2.lock_read()
762
 
        self.addCleanup(tree2.unlock)
 
743
        tree.bzrdir.sprout('tree2')
763
744
        self.failUnlessExists('tree2/subtree/file')
764
 
        self.assertEqual('tree-reference', tree2.kind('subtree-root'))
765
745
 
766
746
    def test_cloning_metadir(self):
767
747
        """Ensure that cloning metadir is suitable"""
893
873
 
894
874
    def test_needs_conversion_different_working_tree(self):
895
875
        # meta1dirs need an conversion if any element is not the default.
896
 
        new_format = bzrdir.format_registry.make_bzrdir('dirstate')
897
 
        tree = self.make_branch_and_tree('tree', format='knit')
898
 
        self.assertTrue(tree.bzrdir.needs_format_conversion(
899
 
            new_format))
900
 
 
901
 
    def test_initialize_on_format_uses_smart_transport(self):
902
 
        self.setup_smart_server_with_call_log()
903
 
        new_format = bzrdir.format_registry.make_bzrdir('dirstate')
904
 
        transport = self.get_transport('target')
905
 
        transport.ensure_base()
906
 
        self.reset_smart_call_log()
907
 
        instance = new_format.initialize_on_transport(transport)
908
 
        self.assertIsInstance(instance, remote.RemoteBzrDir)
909
 
        rpc_count = len(self.hpss_calls)
910
 
        # This figure represent the amount of work to perform this use case. It
911
 
        # is entirely ok to reduce this number if a test fails due to rpc_count
912
 
        # being too low. If rpc_count increases, more network roundtrips have
913
 
        # become necessary for this use case. Please do not adjust this number
914
 
        # upwards without agreement from bzr's network support maintainers.
915
 
        self.assertEqual(2, rpc_count)
 
876
        old_format = bzrdir.BzrDirFormat.get_default_format()
 
877
        # test with 
 
878
        new_default = bzrdir.format_registry.make_bzrdir('dirstate')
 
879
        bzrdir.BzrDirFormat._set_default_format(new_default)
 
880
        try:
 
881
            tree = self.make_branch_and_tree('tree', format='knit')
 
882
            self.assertTrue(tree.bzrdir.needs_format_conversion())
 
883
        finally:
 
884
            bzrdir.BzrDirFormat._set_default_format(old_format)
916
885
 
917
886
 
918
887
class TestFormat5(TestCaseWithTransport):
919
888
    """Tests specific to the version 5 bzrdir format."""
920
889
 
921
890
    def test_same_lockfiles_between_tree_repo_branch(self):
922
 
        # this checks that only a single lockfiles instance is created
 
891
        # this checks that only a single lockfiles instance is created 
923
892
        # for format 5 objects
924
893
        dir = bzrdir.BzrDirFormat5().initialize(self.get_url())
925
894
        def check_dir_components_use_same_lock(dir):
932
901
        # and if we open it normally.
933
902
        dir = bzrdir.BzrDir.open(self.get_url())
934
903
        check_dir_components_use_same_lock(dir)
935
 
 
 
904
    
936
905
    def test_can_convert(self):
937
906
        # format 5 dirs are convertable
938
907
        dir = bzrdir.BzrDirFormat5().initialize(self.get_url())
939
908
        self.assertTrue(dir.can_convert_format())
940
 
 
 
909
    
941
910
    def test_needs_conversion(self):
942
 
        # format 5 dirs need a conversion if they are not the default,
943
 
        # and they aren't
944
 
        dir = bzrdir.BzrDirFormat5().initialize(self.get_url())
945
 
        # don't need to convert it to itself
946
 
        self.assertFalse(dir.needs_format_conversion(bzrdir.BzrDirFormat5()))
947
 
        # do need to convert it to the current default
948
 
        self.assertTrue(dir.needs_format_conversion(
949
 
            bzrdir.BzrDirFormat.get_default_format()))
 
911
        # format 5 dirs need a conversion if they are not the default.
 
912
        # and they start of not the default.
 
913
        old_format = bzrdir.BzrDirFormat.get_default_format()
 
914
        bzrdir.BzrDirFormat._set_default_format(bzrdir.BzrDirFormat5())
 
915
        try:
 
916
            dir = bzrdir.BzrDirFormat5().initialize(self.get_url())
 
917
            self.assertFalse(dir.needs_format_conversion())
 
918
        finally:
 
919
            bzrdir.BzrDirFormat._set_default_format(old_format)
 
920
        self.assertTrue(dir.needs_format_conversion())
950
921
 
951
922
 
952
923
class TestFormat6(TestCaseWithTransport):
953
924
    """Tests specific to the version 6 bzrdir format."""
954
925
 
955
926
    def test_same_lockfiles_between_tree_repo_branch(self):
956
 
        # this checks that only a single lockfiles instance is created
 
927
        # this checks that only a single lockfiles instance is created 
957
928
        # for format 6 objects
958
929
        dir = bzrdir.BzrDirFormat6().initialize(self.get_url())
959
930
        def check_dir_components_use_same_lock(dir):
966
937
        # and if we open it normally.
967
938
        dir = bzrdir.BzrDir.open(self.get_url())
968
939
        check_dir_components_use_same_lock(dir)
969
 
 
 
940
    
970
941
    def test_can_convert(self):
971
942
        # format 6 dirs are convertable
972
943
        dir = bzrdir.BzrDirFormat6().initialize(self.get_url())
973
944
        self.assertTrue(dir.can_convert_format())
974
 
 
 
945
    
975
946
    def test_needs_conversion(self):
976
947
        # format 6 dirs need an conversion if they are not the default.
977
 
        dir = bzrdir.BzrDirFormat6().initialize(self.get_url())
978
 
        self.assertTrue(dir.needs_format_conversion(
979
 
            bzrdir.BzrDirFormat.get_default_format()))
 
948
        old_format = bzrdir.BzrDirFormat.get_default_format()
 
949
        bzrdir.BzrDirFormat._set_default_format(bzrdir.BzrDirMetaFormat1())
 
950
        try:
 
951
            dir = bzrdir.BzrDirFormat6().initialize(self.get_url())
 
952
            self.assertTrue(dir.needs_format_conversion())
 
953
        finally:
 
954
            bzrdir.BzrDirFormat._set_default_format(old_format)
980
955
 
981
956
 
982
957
class NotBzrDir(bzrlib.bzrdir.BzrDir):
1013
988
 
1014
989
class TestNotBzrDir(TestCaseWithTransport):
1015
990
    """Tests for using the bzrdir api with a non .bzr based disk format.
1016
 
 
 
991
    
1017
992
    If/when one of these is in the core, we can let the implementation tests
1018
993
    verify this works.
1019
994
    """
1020
995
 
1021
996
    def test_create_and_find_format(self):
1022
 
        # create a .notbzr dir
 
997
        # create a .notbzr dir 
1023
998
        format = NotBzrDirFormat()
1024
999
        dir = format.initialize(self.get_url())
1025
1000
        self.assertIsInstance(dir, NotBzrDir)
1050
1025
    def setUp(self):
1051
1026
        super(NonLocalTests, self).setUp()
1052
1027
        self.vfs_transport_factory = MemoryServer
1053
 
 
 
1028
    
1054
1029
    def test_create_branch_convenience(self):
1055
1030
        # outside a repo the default convenience output is a repo+branch_tree
1056
1031
        format = bzrdir.format_registry.make_bzrdir('knit')
1101
1076
 
1102
1077
    We can't inherit directly from TestCaseWithTwoWebservers or the
1103
1078
    test framework will try to create an instance which cannot
1104
 
    run, its implementation being incomplete.
 
1079
    run, its implementation being incomplete. 
1105
1080
    """
1106
1081
 
1107
1082
    def create_transport_readonly_server(self):
1152
1127
    _transport = HttpTransport_urllib
1153
1128
 
1154
1129
    def _qualified_url(self, host, port):
1155
 
        result = 'http+urllib://%s:%s' % (host, port)
1156
 
        self.permit_url(result)
1157
 
        return result
 
1130
        return 'http+urllib://%s:%s' % (host, port)
1158
1131
 
1159
1132
 
1160
1133
 
1164
1137
    """Tests redirections for pycurl implementation"""
1165
1138
 
1166
1139
    def _qualified_url(self, host, port):
1167
 
        result = 'http+pycurl://%s:%s' % (host, port)
1168
 
        self.permit_url(result)
1169
 
        return result
 
1140
        return 'http+pycurl://%s:%s' % (host, port)
1170
1141
 
1171
1142
 
1172
1143
class TestHTTPRedirections_nosmart(TestHTTPRedirections,
1176
1147
    _transport = NoSmartTransportDecorator
1177
1148
 
1178
1149
    def _qualified_url(self, host, port):
1179
 
        result = 'nosmart+http://%s:%s' % (host, port)
1180
 
        self.permit_url(result)
1181
 
        return result
 
1150
        return 'nosmart+http://%s:%s' % (host, port)
1182
1151
 
1183
1152
 
1184
1153
class TestHTTPRedirections_readonly(TestHTTPRedirections,
1188
1157
    _transport = ReadonlyTransportDecorator
1189
1158
 
1190
1159
    def _qualified_url(self, host, port):
1191
 
        result = 'readonly+http://%s:%s' % (host, port)
1192
 
        self.permit_url(result)
1193
 
        return result
 
1160
        return 'readonly+http://%s:%s' % (host, port)
1194
1161
 
1195
1162
 
1196
1163
class TestDotBzrHidden(TestCaseWithTransport):
1231
1198
 
1232
1199
class _TestBzrDir(bzrdir.BzrDirMeta1):
1233
1200
    """Test BzrDir implementation for TestBzrDirSprout.
1234
 
 
 
1201
    
1235
1202
    When created a _TestBzrDir already has repository and a branch.  The branch
1236
1203
    is a test double as well.
1237
1204
    """
1248
1215
        return _TestBzrDirFormat()
1249
1216
 
1250
1217
 
1251
 
class _TestBranchFormat(bzrlib.branch.BranchFormat):
1252
 
    """Test Branch format for TestBzrDirSprout."""
1253
 
 
1254
 
 
1255
1218
class _TestBranch(bzrlib.branch.Branch):
1256
1219
    """Test Branch implementation for TestBzrDirSprout."""
1257
1220
 
1258
1221
    def __init__(self, *args, **kwargs):
1259
 
        self._format = _TestBranchFormat()
1260
1222
        super(_TestBranch, self).__init__(*args, **kwargs)
1261
1223
        self.calls = []
1262
1224
        self._parent = None
1283
1245
        Usually, BzrDir.sprout should delegate to the branch's sprout method
1284
1246
        for part of the work.  This allows the source branch to control the
1285
1247
        choice of format for the new branch.
1286
 
 
 
1248
        
1287
1249
        There are exceptions, but this tests avoids them:
1288
1250
          - if there's no branch in the source bzrdir,
1289
1251
          - or if the stacking has been requested and the format needs to be
1310
1272
        parent = grandparent_tree.bzrdir.sprout('parent').open_branch()
1311
1273
        branch_tree = parent.bzrdir.sprout('branch').open_branch()
1312
1274
        self.assertContainsRe(branch_tree.get_parent(), '/parent/$')
1313
 
 
1314
 
 
1315
 
class TestBzrDirHooks(TestCaseWithMemoryTransport):
1316
 
 
1317
 
    def test_pre_open_called(self):
1318
 
        calls = []
1319
 
        bzrdir.BzrDir.hooks.install_named_hook('pre_open', calls.append, None)
1320
 
        transport = self.get_transport('foo')
1321
 
        url = transport.base
1322
 
        self.assertRaises(errors.NotBranchError, bzrdir.BzrDir.open, url)
1323
 
        self.assertEqual([transport.base], [t.base for t in calls])
1324
 
 
1325
 
    def test_pre_open_actual_exceptions_raised(self):
1326
 
        count = [0]
1327
 
        def fail_once(transport):
1328
 
            count[0] += 1
1329
 
            if count[0] == 1:
1330
 
                raise errors.BzrError("fail")
1331
 
        bzrdir.BzrDir.hooks.install_named_hook('pre_open', fail_once, None)
1332
 
        transport = self.get_transport('foo')
1333
 
        url = transport.base
1334
 
        err = self.assertRaises(errors.BzrError, bzrdir.BzrDir.open, url)
1335
 
        self.assertEqual('fail', err._preformatted_string)