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Viewing changes to bzrlib/tests/test_transactions.py

  • Committer: Canonical.com Patch Queue Manager
  • Date: 2010-11-09 18:19:47 UTC
  • mfrom: (5524.2.1 noshfolder)
  • Revision ID: pqm@pqm.ubuntu.com-20101109181947-h26505clmkdhh2uz
(GaryvdM) Exclude SHFOLDER.dll from py2exe builds,
        as it breaks subvertpy.

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bzrlib/tests/test_transactions.py
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# Copyright (C) 2005 by Canonical Ltd
 
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# Copyright (C) 2005 Canonical Ltd
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#   Authors: Robert Collins <robert.collins@canonical.com>
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#
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# This program is free software; you can redistribute it and/or modify
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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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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"""Tests for the behaviour of the Transaction concept in bzr."""
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    def __init__(self, message):
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        self._message = message
 
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        self.finished = False
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    def __eq__(self, other):
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        if other is None:
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            return False
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        return self._message == other._message
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42
    def transaction_finished(self):
 
43
        self.finished = True
 
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class TestSymbols(TestCase):
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        self.transaction.register_clean("anobject")
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    def test_register_dirty_raises(self):
59
 
        self.assertRaises(errors.ReadOnlyError, 
 
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        self.assertRaises(errors.ReadOnlyError,
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                          self.transaction.register_dirty,"anobject")
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62
 
    def test_commit_raises(self):
63
 
        self.assertRaises(errors.CommitNotPossible, self.transaction.commit)
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    def test_map(self):
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        self.assertNotEqual(None, getattr(self.transaction, "map", None))
67
 
    
 
68
 
68
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    def test_add_and_get(self):
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        weave = "a weave"
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        self.transaction.map.add_weave("id", weave)
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        self.assertEqual(weave, self.transaction.map.find_weave("id"))
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73
 
    def test_rollback_returns(self):
74
 
        self.transaction.rollback()
75
 
 
76
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    def test_finish_returns(self):
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        self.transaction.finish()
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76
 
 
77
    def test_finish_does_not_tell_versioned_file_finished(self):
 
78
        # read only transactions never write, so theres no
 
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        # need to inform versioned files about finishing
 
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        weave = DummyWeave('a weave')
 
81
        self.transaction.finish()
 
82
        self.assertFalse(weave.finished)
 
83
 
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    def test_zero_size_cache(self):
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        self.transaction.set_cache_size(0)
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        weave = DummyWeave('a weave')
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        # its not a weakref system
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        self.assertEqual(DummyWeave("another weave"),
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                         self.transaction.map.find_weave("id"))
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    def test_small_cache(self):
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        self.transaction.set_cache_size(1)
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        # add an object, should not fall right out if there are no references
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        self.assertEqual(DummyWeave('a weave'),
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                         self.transaction.map.find_weave("id"))
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141
 
137
 
    def test_precious_revision_history(self):
138
 
        """Disabled test until revision-history is a real object."""
139
 
        print "Disabled: test_precious_revision_history"
140
 
        return
141
 
        self.transaction.set_cache_size(0)
142
 
        history = []
143
 
        self.transaction.map.add_revision_history(history)
144
 
        self.assertEqual(history, self.transaction.map.find_revision_history())
145
 
        history = None
146
 
        # add an object, should not fall out even with no references.
147
 
        self.transaction.register_clean(
148
 
            self.transaction.map.find_revision_history(), precious=True)
149
 
        self.assertEqual([], self.transaction.map.find_revision_history())
 
142
    def test_writable(self):
 
143
        self.assertFalse(self.transaction.writeable())
150
144
 
151
145
 
152
146
class TestPassThroughTransaction(TestCase):
157
151
    def test_register_clean(self):
158
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        transaction = transactions.PassThroughTransaction()
159
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        transaction.register_clean("anobject")
160
 
    
 
154
 
161
155
    def test_register_dirty(self):
162
156
        transaction = transactions.PassThroughTransaction()
163
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        transaction.register_dirty("anobject")
164
 
    
165
 
    def test_commit_nothing_returns(self):
166
 
        transaction = transactions.PassThroughTransaction()
167
 
        transaction.commit()
168
158
 
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159
    def test_map(self):
170
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        transaction = transactions.PassThroughTransaction()
171
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        self.assertNotEqual(None, getattr(transaction, "map", None))
172
 
    
 
162
 
173
163
    def test_add_and_get(self):
174
164
        transaction = transactions.PassThroughTransaction()
175
165
        weave = "a weave"
176
166
        transaction.map.add_weave("id", weave)
177
167
        self.assertEqual(None, transaction.map.find_weave("id"))
178
 
        
179
 
    def test_rollback_asserts(self):
180
 
        transaction = transactions.PassThroughTransaction()
181
 
        self.assertRaises(errors.AlreadyCommitted, transaction.rollback)
182
168
 
183
169
    def test_finish_returns(self):
184
170
        transaction = transactions.PassThroughTransaction()
185
171
        transaction.finish()
186
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
 
187
182
    def test_cache_is_ignored(self):
188
183
        transaction = transactions.PassThroughTransaction()
189
184
        transaction.set_cache_size(100)
190
185
        weave = "a weave"
191
186
        transaction.map.add_weave("id", weave)
192
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"))
 
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214
    def test_finish_returns(self):
 
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        self.transaction.finish()
 
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217
    def test_finish_tells_versioned_file_finished(self):
 
218
        # write transactions allow writes so they
 
219
        # need to inform versioned files about finishing
 
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        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())