← Back to branch summary

~bzr-pqm/bzr/bzr.dev

« back to all changes in this revision

Viewing changes to bzrlib/tests/test_transactions.py

  • Committer: Martin Pool
  • Date: 2006-06-05 16:23:59 UTC
  • mto: This revision was merged to the branch mainline in revision 1752.
  • Revision ID: mbp@sourcefrog.net-20060605162359-2405198cadc86895
[broken] NotBranchError should unescape the url if possible

(Fixes some info blackbox tests)

Show diffs side-by-side

added added

removed removed

Lines of Context:
bzrlib/tests/test_transactions.py
 
1
# Copyright (C) 2005 by 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  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_precious_revision_history(self):
 
143
        """Disabled test until revision-history is a real object."""
 
144
        print "Disabled: test_precious_revision_history"
 
145
        return
 
146
        self.transaction.set_cache_size(0)
 
147
        history = []
 
148
        self.transaction.map.add_revision_history(history)
 
149
        self.assertEqual(history, self.transaction.map.find_revision_history())
 
150
        history = None
 
151
        # add an object, should not fall out even with no references.
 
152
        self.transaction.register_clean(
 
153
            self.transaction.map.find_revision_history(), precious=True)
 
154
        self.assertEqual([], self.transaction.map.find_revision_history())
 
155
 
 
156
    def test_writable(self):
 
157
        self.assertFalse(self.transaction.writeable())
 
158
 
 
159
 
 
160
class TestPassThroughTransaction(TestCase):
 
161
 
 
162
    def test_construct(self):
 
163
        transactions.PassThroughTransaction()
 
164
 
 
165
    def test_register_clean(self):
 
166
        transaction = transactions.PassThroughTransaction()
 
167
        transaction.register_clean("anobject")
 
168
    
 
169
    def test_register_dirty(self):
 
170
        transaction = transactions.PassThroughTransaction()
 
171
        transaction.register_dirty("anobject")
 
172
    
 
173
    def test_map(self):
 
174
        transaction = transactions.PassThroughTransaction()
 
175
        self.assertNotEqual(None, getattr(transaction, "map", None))
 
176
    
 
177
    def test_add_and_get(self):
 
178
        transaction = transactions.PassThroughTransaction()
 
179
        weave = "a weave"
 
180
        transaction.map.add_weave("id", weave)
 
181
        self.assertEqual(None, transaction.map.find_weave("id"))
 
182
        
 
183
    def test_finish_returns(self):
 
184
        transaction = transactions.PassThroughTransaction()
 
185
        transaction.finish()
 
186
 
 
187
    def test_finish_tells_versioned_file_finished(self):
 
188
        # pass through transactions allow writes so they
 
189
        # need to inform versioned files about finishing
 
190
        weave = DummyWeave('a weave')
 
191
        transaction = transactions.PassThroughTransaction()
 
192
        transaction.register_dirty(weave)
 
193
        transaction.finish()
 
194
        self.assertTrue(weave.finished)
 
195
 
 
196
    def test_cache_is_ignored(self):
 
197
        transaction = transactions.PassThroughTransaction()
 
198
        transaction.set_cache_size(100)
 
199
        weave = "a weave"
 
200
        transaction.map.add_weave("id", weave)
 
201
        self.assertEqual(None, transaction.map.find_weave("id"))
 
202
 
 
203
    def test_writable(self):
 
204
        transaction = transactions.PassThroughTransaction()
 
205
        self.assertTrue(transaction.writeable())
 
206
        
 
207
 
 
208
class TestWriteTransaction(TestCase):
 
209
 
 
210
    def setUp(self):
 
211
        self.transaction = transactions.WriteTransaction()
 
212
        super(TestWriteTransaction, self).setUp()
 
213
 
 
214
    def test_register_clean(self):
 
215
        self.transaction.register_clean("anobject")
 
216
    
 
217
    def test_register_dirty(self):
 
218
        self.transaction.register_dirty("anobject")
 
219
    
 
220
    def test_map(self):
 
221
        self.assertNotEqual(None, getattr(self.transaction, "map", None))
 
222
    
 
223
    def test_add_and_get(self):
 
224
        weave = "a weave"
 
225
        self.transaction.map.add_weave("id", weave)
 
226
        self.assertEqual(weave, self.transaction.map.find_weave("id"))
 
227
        
 
228
    def test_finish_returns(self):
 
229
        self.transaction.finish()
 
230
 
 
231
    def test_finish_tells_versioned_file_finished(self):
 
232
        # write transactions allow writes so they
 
233
        # need to inform versioned files about finishing
 
234
        weave = DummyWeave('a weave')
 
235
        self.transaction.register_dirty(weave)
 
236
        self.transaction.finish()
 
237
        self.assertTrue(weave.finished)
 
238
 
 
239
    def test_zero_size_cache(self):
 
240
        self.transaction.set_cache_size(0)
 
241
        # add an object, should fall right out if there are no references
 
242
        weave = DummyWeave('a weave')
 
243
        self.transaction.map.add_weave("id", weave)
 
244
        self.assertEqual(weave, self.transaction.map.find_weave("id"))
 
245
        weave = None
 
246
        self.transaction.register_clean(self.transaction.map.find_weave("id"))
 
247
        self.assertEqual(None, self.transaction.map.find_weave("id"))
 
248
        # but if we have a reference to a clean object it should stick around
 
249
        weave = DummyWeave("another weave")
 
250
        self.transaction.map.add_weave("id", weave)
 
251
        self.transaction.register_clean(self.transaction.map.find_weave("id"))
 
252
        self.assertEqual(weave, self.transaction.map.find_weave("id"))
 
253
        del weave
 
254
        # its not a weakref system
 
255
        self.assertEqual(DummyWeave("another weave"),
 
256
                         self.transaction.map.find_weave("id"))
 
257
 
 
258
    def test_zero_size_cache_dirty_objects(self):
 
259
        self.transaction.set_cache_size(0)
 
260
        # add a dirty object, which should not fall right out.
 
261
        weave = DummyWeave('a weave')
 
262
        self.transaction.map.add_weave("id", weave)
 
263
        self.assertEqual(weave, self.transaction.map.find_weave("id"))
 
264
        weave = None
 
265
        self.transaction.register_dirty(self.transaction.map.find_weave("id"))
 
266
        self.assertNotEqual(None, self.transaction.map.find_weave("id"))
 
267
    
 
268
    def test_clean_to_dirty(self):
 
269
        # a clean object may become dirty.
 
270
        weave = DummyWeave('A weave')
 
271
        self.transaction.map.add_weave("id", weave)
 
272
        self.transaction.register_clean(weave)
 
273
        self.transaction.register_dirty(weave)
 
274
        self.assertTrue(self.transaction.is_dirty(weave))
 
275
        self.assertFalse(self.transaction.is_clean(weave))
 
276
 
 
277
    def test_small_cache(self):
 
278
        self.transaction.set_cache_size(1)
 
279
        # add an object, should not fall right out if there are no references
 
280
        #sys.getrefcounts(foo)
 
281
        self.transaction.map.add_weave("id", DummyWeave("a weave"))
 
282
        self.transaction.register_clean(self.transaction.map.find_weave("id"))
 
283
        self.assertEqual(DummyWeave("a weave"),
 
284
                         self.transaction.map.find_weave("id"))
 
285
        self.transaction.map.add_weave("id2", DummyWeave("a weave also"))
 
286
        self.transaction.register_clean(self.transaction.map.find_weave("id2"))
 
287
        # currently a fifo
 
288
        self.assertEqual(None, self.transaction.map.find_weave("id"))
 
289
        self.assertEqual(DummyWeave("a weave also"),
 
290
                         self.transaction.map.find_weave("id2"))
 
291
 
 
292
    def test_small_cache_with_references(self):
 
293
        # if we have a reference it should stick around
 
294
        weave = "a weave"
 
295
        weave2 = "another weave"
 
296
        self.transaction.map.add_weave("id", weave)
 
297
        self.transaction.map.add_weave("id2", weave2)
 
298
        self.assertEqual(weave, self.transaction.map.find_weave("id"))
 
299
        self.assertEqual(weave2, self.transaction.map.find_weave("id2"))
 
300
        weave = None
 
301
        # its not a weakref system
 
302
        self.assertEqual("a weave", self.transaction.map.find_weave("id"))
 
303
 
 
304
    def test_precious_with_zero_size_cache(self):
 
305
        self.transaction.set_cache_size(0)
 
306
        weave = DummyWeave('a weave')
 
307
        self.transaction.map.add_weave("id", weave)
 
308
        self.assertEqual(weave, self.transaction.map.find_weave("id"))
 
309
        weave = None
 
310
        # add an object, should not fall out even with no references.
 
311
        self.transaction.register_clean(self.transaction.map.find_weave("id"),
 
312
                                        precious=True)
 
313
        self.assertEqual(DummyWeave('a weave'),
 
314
                         self.transaction.map.find_weave("id"))
 
315
 
 
316
    def test_writable(self):
 
317
        self.assertTrue(self.transaction.writeable())