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Viewing changes to bzrlib/tests/test_transactions.py

  • Committer: Martin Pool
  • Date: 2010-07-02 07:29:40 UTC
  • mfrom: (129.1.7 packaging-karmic)
  • Revision ID: mbp@sourcefrog.net-20100702072940-hpzq5elg8wjve8rh
http://bugs.debian.org/452024
http://bugs.debian.org/464688
http://bugs.debian.org/523595
http://bugs.debian.org/526233
http://bugs.debian.org/537708
http://bugs.debian.org/555336
http://bugs.debian.org/555343
https://launchpad.net/bugs/249452
https://launchpad.net/bugs/385074
* PPA rebuild.
* PPA rebuild for Karmic.
* PPA rebuild for Jaunty.
* PPA rebuild for Hardy.
* From postinst, actually remove the example bash completion scripts.
  (LP: #249452)
* New upstream release.
* New upstream release.
* New upstream release.
* Revert change to Build-depends: Dapper does not have python-central.
  Should be python-support..
* Target ppa..
* Target ppa..
* Target ppa..
* Target ppa..
* New upstream release.
* Switch to dpkg-source 3.0 (quilt) format.
* Bump standards version to 3.8.4.
* Remove embedded copy of python-configobj. Closes: #555336
* Remove embedded copy of python-elementtree. Closes: #555343
* Change section from 'Devel' to 'Vcs'..
* Change section from 'Devel' to 'Vcs'..
* Change section from 'Devel' to 'Vcs'..
* Change section from 'Devel' to 'Vcs'..
* Change section from 'Devel' to 'Vcs'..
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* debian/control: Fix obsolete-relation-form-in-source
  lintian warning. 
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* Split out docs into bzr-doc package.
* New upstream release.
* Added John Francesco Ferlito to Uploaders.
* Fix install path to quick-reference guide
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* Fix FTBFS due to path changes, again.
* Fix FTBFS due to doc paths changing
* New upstream release.
* Fix FTBFS due to path changes, again.
* Fix FTBFS due to doc paths changing
* New upstream release.
* Fix FTBFS due to path changes, again.
* Fix FTBFS due to doc paths changing
* New upstream release.
* Fix FTBFS due to path changes, again, again.
* Fix FTBFS due to path changes, again.
* Fix FTBFS due to path changes.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* Bump standards version to 3.8.3.
* Remove unused patch system.
* New upstream release.
* New upstream release.
* New upstream release.
* Fix copy and paste tab error in .install file
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
 + Fixes compatibility with Python 2.4. Closes: #537708
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream version.
* Bump standards version to 3.8.2.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* Add python-pyrex to build-deps to ensure C extensions are always build.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* Split documentation into bzr-doc package. ((LP: #385074)
* Multiple packaging changes to make us more linitan clean.
* New upstream release.
* Split documentation into bzr-doc package. ((LP: #385074)
* Multiple packaging changes to make us more linitan clean.
* New upstream release.
* Split documentation into bzr-doc package. ((LP: #385074)
* Multiple packaging changes to make us more linitan clean.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* Fix API compatibility version. (Closes: #526233)
* New upstream release.
  + Fixes default format for upgrade command. (Closes: #464688)
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* Add missing dependency on zlib development library. (Closes:
  #523595)
* Add zlib build-depends.
* Add zlib build-depends.
* Add zlib build-depends.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* Move to section vcs.
* Bump standards version to 3.8.1.
* New upstream release.
* Remove temporary patch for missing .c files from distribution
* New upstream release.
* Remove temporary patch for missing .c files from distribution
* New upstream release.
* Remove temporary patch for missing .c files from distribution
* Add temporary patch for missing .c files from distribution
* Add temporary patch for missing .c files from distribution
* Add temporary patch for missing .c files from distribution
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* Recommend ca-certificates. (Closes: #452024)
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* Update watch file. bazaar now uses launchpad to host its sources.
* Remove patch for inventory root revision copy, applied upstream.
* New upstream release.
* New upstream release.
* New upstream release
* Force removal of files installed in error to /etc/bash_completion.d/
  (LP: #249452)
* New upstream release.
* New upstream release
* New upstream release.
* Bump standards version.
* Include patch for inventory root revision copy, required for bzr-svn.
* New upstream release.
* Remove unused lintian overrides.
* Correct the package version not to be native.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* New upstream release.
* Final 1.5 release.
* New upstream release.
* New upstream release.
* New upstream release.
* Add myself as a co-maintainer.
* Add a Dm-Upload-Allowed: yes header.
* New upstream bugfix release.
* New upstream release.
* Final 1.3 release.
* New upstream release.
* First release candidate of the upcoming 1.3 release.
* Rebuild to fix the problem caused by a build with a broken python-central.
* New upstream release.
* Rebuild for dapper PPA.
* Apply Lamont's patches to fix build-dependencies on dapper.
  (See: https://bugs.launchpad.net/bzr/+bug/189915)

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Lines of Context:
bzrlib/tests/test_transactions.py
 
1
# Copyright (C) 2005 Canonical Ltd
 
2
#   Authors: Robert Collins <robert.collins@canonical.com>
 
3
#
 
4
# This program is free software; you can redistribute it and/or modify
 
5
# it under the terms of the GNU General Public License as published by
 
6
# the Free Software Foundation; either version 2 of the License, or
 
7
# (at your option) any later version.
 
8
#
 
9
# This program is distributed in the hope that it will be useful,
 
10
# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
11
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
12
# GNU General Public License for more details.
 
13
#
 
14
# You should have received a copy of the GNU General Public License
 
15
# along with this program; if not, write to the Free Software
 
16
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
17
 
 
18
"""Tests for the behaviour of the Transaction concept in bzr."""
 
19
 
 
20
# import system imports here
 
21
import os
 
22
import sys
 
23
 
 
24
#import bzrlib specific imports here
 
25
import bzrlib.errors as errors
 
26
from bzrlib.tests import TestCase, TestCaseInTempDir
 
27
import bzrlib.transactions as transactions
 
28
 
 
29
 
 
30
class DummyWeave(object):
 
31
    """A class that can be instantiated and compared."""
 
32
 
 
33
    def __init__(self, message):
 
34
        self._message = message
 
35
        self.finished = False
 
36
 
 
37
    def __eq__(self, other):
 
38
        if other is None:
 
39
            return False
 
40
        return self._message == other._message
 
41
 
 
42
    def transaction_finished(self):
 
43
        self.finished = True
 
44
 
 
45
 
 
46
class TestSymbols(TestCase):
 
47
 
 
48
    def test_public_symbols(self):
 
49
        from bzrlib.transactions import ReadOnlyTransaction
 
50
        from bzrlib.transactions import PassThroughTransaction
 
51
 
 
52
 
 
53
class TestReadOnlyTransaction(TestCase):
 
54
 
 
55
    def setUp(self):
 
56
        self.transaction = transactions.ReadOnlyTransaction()
 
57
        super(TestReadOnlyTransaction, self).setUp()
 
58
 
 
59
    def test_register_clean(self):
 
60
        self.transaction.register_clean("anobject")
 
61
 
 
62
    def test_register_dirty_raises(self):
 
63
        self.assertRaises(errors.ReadOnlyError,
 
64
                          self.transaction.register_dirty,"anobject")
 
65
 
 
66
    def test_map(self):
 
67
        self.assertNotEqual(None, getattr(self.transaction, "map", None))
 
68
 
 
69
    def test_add_and_get(self):
 
70
        weave = "a weave"
 
71
        self.transaction.map.add_weave("id", weave)
 
72
        self.assertEqual(weave, self.transaction.map.find_weave("id"))
 
73
 
 
74
    def test_finish_returns(self):
 
75
        self.transaction.finish()
 
76
 
 
77
    def test_finish_does_not_tell_versioned_file_finished(self):
 
78
        # read only transactions never write, so theres no
 
79
        # need to inform versioned files about finishing
 
80
        weave = DummyWeave('a weave')
 
81
        self.transaction.finish()
 
82
        self.assertFalse(weave.finished)
 
83
 
 
84
    def test_zero_size_cache(self):
 
85
        self.transaction.set_cache_size(0)
 
86
        weave = DummyWeave('a weave')
 
87
        self.transaction.map.add_weave("id", weave)
 
88
        self.assertEqual(weave, self.transaction.map.find_weave("id"))
 
89
        weave = None
 
90
        # add an object, should fall right out if there are no references
 
91
        self.transaction.register_clean(self.transaction.map.find_weave("id"))
 
92
        self.assertEqual(None, self.transaction.map.find_weave("id"))
 
93
        # but if we have a reference it should stick around
 
94
        weave = DummyWeave("another weave")
 
95
        self.transaction.map.add_weave("id", weave)
 
96
        self.transaction.register_clean(self.transaction.map.find_weave("id"))
 
97
        self.assertEqual(weave, self.transaction.map.find_weave("id"))
 
98
        del weave
 
99
        # its not a weakref system
 
100
        self.assertEqual(DummyWeave("another weave"),
 
101
                         self.transaction.map.find_weave("id"))
 
102
 
 
103
    def test_small_cache(self):
 
104
        self.transaction.set_cache_size(1)
 
105
        # add an object, should not fall right out if there are no references
 
106
        #sys.getrefcounts(foo)
 
107
        self.transaction.map.add_weave("id", DummyWeave("a weave"))
 
108
        self.transaction.register_clean(self.transaction.map.find_weave("id"))
 
109
        self.assertEqual(DummyWeave("a weave"),
 
110
                         self.transaction.map.find_weave("id"))
 
111
        self.transaction.map.add_weave("id2", DummyWeave("a weave also"))
 
112
        self.transaction.register_clean(self.transaction.map.find_weave("id2"))
 
113
        # currently a fifo
 
114
        self.assertEqual(None, self.transaction.map.find_weave("id"))
 
115
        self.assertEqual(DummyWeave("a weave also"),
 
116
                         self.transaction.map.find_weave("id2"))
 
117
 
 
118
    def test_small_cache_with_references(self):
 
119
        # if we have a reference it should stick around
 
120
        weave = "a weave"
 
121
        weave2 = "another weave"
 
122
        self.transaction.map.add_weave("id", weave)
 
123
        self.transaction.map.add_weave("id2", weave2)
 
124
        self.assertEqual(weave, self.transaction.map.find_weave("id"))
 
125
        self.assertEqual(weave2, self.transaction.map.find_weave("id2"))
 
126
        weave = None
 
127
        # its not a weakref system
 
128
        self.assertEqual("a weave", self.transaction.map.find_weave("id"))
 
129
 
 
130
    def test_precious_with_zero_size_cache(self):
 
131
        self.transaction.set_cache_size(0)
 
132
        weave = DummyWeave('a weave')
 
133
        self.transaction.map.add_weave("id", weave)
 
134
        self.assertEqual(weave, self.transaction.map.find_weave("id"))
 
135
        weave = None
 
136
        # add an object, should not fall out even with no references.
 
137
        self.transaction.register_clean(self.transaction.map.find_weave("id"),
 
138
                                        precious=True)
 
139
        self.assertEqual(DummyWeave('a weave'),
 
140
                         self.transaction.map.find_weave("id"))
 
141
 
 
142
    def test_writable(self):
 
143
        self.assertFalse(self.transaction.writeable())
 
144
 
 
145
 
 
146
class TestPassThroughTransaction(TestCase):
 
147
 
 
148
    def test_construct(self):
 
149
        transactions.PassThroughTransaction()
 
150
 
 
151
    def test_register_clean(self):
 
152
        transaction = transactions.PassThroughTransaction()
 
153
        transaction.register_clean("anobject")
 
154
 
 
155
    def test_register_dirty(self):
 
156
        transaction = transactions.PassThroughTransaction()
 
157
        transaction.register_dirty("anobject")
 
158
 
 
159
    def test_map(self):
 
160
        transaction = transactions.PassThroughTransaction()
 
161
        self.assertNotEqual(None, getattr(transaction, "map", None))
 
162
 
 
163
    def test_add_and_get(self):
 
164
        transaction = transactions.PassThroughTransaction()
 
165
        weave = "a weave"
 
166
        transaction.map.add_weave("id", weave)
 
167
        self.assertEqual(None, transaction.map.find_weave("id"))
 
168
 
 
169
    def test_finish_returns(self):
 
170
        transaction = transactions.PassThroughTransaction()
 
171
        transaction.finish()
 
172
 
 
173
    def test_finish_tells_versioned_file_finished(self):
 
174
        # pass through transactions allow writes so they
 
175
        # need to inform versioned files about finishing
 
176
        weave = DummyWeave('a weave')
 
177
        transaction = transactions.PassThroughTransaction()
 
178
        transaction.register_dirty(weave)
 
179
        transaction.finish()
 
180
        self.assertTrue(weave.finished)
 
181
 
 
182
    def test_cache_is_ignored(self):
 
183
        transaction = transactions.PassThroughTransaction()
 
184
        transaction.set_cache_size(100)
 
185
        weave = "a weave"
 
186
        transaction.map.add_weave("id", weave)
 
187
        self.assertEqual(None, transaction.map.find_weave("id"))
 
188
 
 
189
    def test_writable(self):
 
190
        transaction = transactions.PassThroughTransaction()
 
191
        self.assertTrue(transaction.writeable())
 
192
 
 
193
 
 
194
class TestWriteTransaction(TestCase):
 
195
 
 
196
    def setUp(self):
 
197
        self.transaction = transactions.WriteTransaction()
 
198
        super(TestWriteTransaction, self).setUp()
 
199
 
 
200
    def test_register_clean(self):
 
201
        self.transaction.register_clean("anobject")
 
202
 
 
203
    def test_register_dirty(self):
 
204
        self.transaction.register_dirty("anobject")
 
205
 
 
206
    def test_map(self):
 
207
        self.assertNotEqual(None, getattr(self.transaction, "map", None))
 
208
 
 
209
    def test_add_and_get(self):
 
210
        weave = "a weave"
 
211
        self.transaction.map.add_weave("id", weave)
 
212
        self.assertEqual(weave, self.transaction.map.find_weave("id"))
 
213
 
 
214
    def test_finish_returns(self):
 
215
        self.transaction.finish()
 
216
 
 
217
    def test_finish_tells_versioned_file_finished(self):
 
218
        # write transactions allow writes so they
 
219
        # need to inform versioned files about finishing
 
220
        weave = DummyWeave('a weave')
 
221
        self.transaction.register_dirty(weave)
 
222
        self.transaction.finish()
 
223
        self.assertTrue(weave.finished)
 
224
 
 
225
    def test_zero_size_cache(self):
 
226
        self.transaction.set_cache_size(0)
 
227
        # add an object, should fall right out if there are no references
 
228
        weave = DummyWeave('a weave')
 
229
        self.transaction.map.add_weave("id", weave)
 
230
        self.assertEqual(weave, self.transaction.map.find_weave("id"))
 
231
        weave = None
 
232
        self.transaction.register_clean(self.transaction.map.find_weave("id"))
 
233
        self.assertEqual(None, self.transaction.map.find_weave("id"))
 
234
        # but if we have a reference to a clean object it should stick around
 
235
        weave = DummyWeave("another weave")
 
236
        self.transaction.map.add_weave("id", weave)
 
237
        self.transaction.register_clean(self.transaction.map.find_weave("id"))
 
238
        self.assertEqual(weave, self.transaction.map.find_weave("id"))
 
239
        del weave
 
240
        # its not a weakref system
 
241
        self.assertEqual(DummyWeave("another weave"),
 
242
                         self.transaction.map.find_weave("id"))
 
243
 
 
244
    def test_zero_size_cache_dirty_objects(self):
 
245
        self.transaction.set_cache_size(0)
 
246
        # add a dirty object, which should not fall right out.
 
247
        weave = DummyWeave('a weave')
 
248
        self.transaction.map.add_weave("id", weave)
 
249
        self.assertEqual(weave, self.transaction.map.find_weave("id"))
 
250
        weave = None
 
251
        self.transaction.register_dirty(self.transaction.map.find_weave("id"))
 
252
        self.assertNotEqual(None, self.transaction.map.find_weave("id"))
 
253
 
 
254
    def test_clean_to_dirty(self):
 
255
        # a clean object may become dirty.
 
256
        weave = DummyWeave('A weave')
 
257
        self.transaction.map.add_weave("id", weave)
 
258
        self.transaction.register_clean(weave)
 
259
        self.transaction.register_dirty(weave)
 
260
        self.assertTrue(self.transaction.is_dirty(weave))
 
261
        self.assertFalse(self.transaction.is_clean(weave))
 
262
 
 
263
    def test_small_cache(self):
 
264
        self.transaction.set_cache_size(1)
 
265
        # add an object, should not fall right out if there are no references
 
266
        #sys.getrefcounts(foo)
 
267
        self.transaction.map.add_weave("id", DummyWeave("a weave"))
 
268
        self.transaction.register_clean(self.transaction.map.find_weave("id"))
 
269
        self.assertEqual(DummyWeave("a weave"),
 
270
                         self.transaction.map.find_weave("id"))
 
271
        self.transaction.map.add_weave("id2", DummyWeave("a weave also"))
 
272
        self.transaction.register_clean(self.transaction.map.find_weave("id2"))
 
273
        # currently a fifo
 
274
        self.assertEqual(None, self.transaction.map.find_weave("id"))
 
275
        self.assertEqual(DummyWeave("a weave also"),
 
276
                         self.transaction.map.find_weave("id2"))
 
277
 
 
278
    def test_small_cache_with_references(self):
 
279
        # if we have a reference it should stick around
 
280
        weave = "a weave"
 
281
        weave2 = "another weave"
 
282
        self.transaction.map.add_weave("id", weave)
 
283
        self.transaction.map.add_weave("id2", weave2)
 
284
        self.assertEqual(weave, self.transaction.map.find_weave("id"))
 
285
        self.assertEqual(weave2, self.transaction.map.find_weave("id2"))
 
286
        weave = None
 
287
        # its not a weakref system
 
288
        self.assertEqual("a weave", self.transaction.map.find_weave("id"))
 
289
 
 
290
    def test_precious_with_zero_size_cache(self):
 
291
        self.transaction.set_cache_size(0)
 
292
        weave = DummyWeave('a weave')
 
293
        self.transaction.map.add_weave("id", weave)
 
294
        self.assertEqual(weave, self.transaction.map.find_weave("id"))
 
295
        weave = None
 
296
        # add an object, should not fall out even with no references.
 
297
        self.transaction.register_clean(self.transaction.map.find_weave("id"),
 
298
                                        precious=True)
 
299
        self.assertEqual(DummyWeave('a weave'),
 
300
                         self.transaction.map.find_weave("id"))
 
301
 
 
302
    def test_writable(self):
 
303
        self.assertTrue(self.transaction.writeable())