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Viewing changes to bzrlib/tests/test_branch.py

  • Committer: Martin Pool
  • Date: 2005-07-08 02:21:13 UTC
  • Revision ID: mbp@sourcefrog.net-20050708022113-940d11d7505b0ac8
- refactor hashcache to use just one dictionary

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1
 
# (C) 2005 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
16
 
 
17
 
import os
18
 
import sys
19
 
 
20
 
from bzrlib.branch import Branch, needs_read_lock, needs_write_lock
21
 
from bzrlib.clone import copy_branch
22
 
from bzrlib.commit import commit
23
 
import bzrlib.errors as errors
24
 
from bzrlib.errors import NoSuchRevision, UnlistableBranch, NotBranchError
25
 
import bzrlib.gpg
26
 
from bzrlib.osutils import getcwd
27
 
from bzrlib.tests import TestCase, TestCaseInTempDir
28
 
from bzrlib.tests.HTTPTestUtil import TestCaseWithWebserver
29
 
from bzrlib.trace import mutter
30
 
import bzrlib.transactions as transactions
31
 
from bzrlib.revision import NULL_REVISION
32
 
 
33
 
# TODO: Make a branch using basis branch, and check that it 
34
 
# doesn't request any files that could have been avoided, by 
35
 
# hooking into the Transport.
36
 
 
37
 
class TestBranch(TestCaseInTempDir):
38
 
 
39
 
    def test_append_revisions(self):
40
 
        """Test appending more than one revision"""
41
 
        br = Branch.initialize(u".")
42
 
        br.append_revision("rev1")
43
 
        self.assertEquals(br.revision_history(), ["rev1",])
44
 
        br.append_revision("rev2", "rev3")
45
 
        self.assertEquals(br.revision_history(), ["rev1", "rev2", "rev3"])
46
 
 
47
 
    def test_fetch_revisions(self):
48
 
        """Test fetch-revision operation."""
49
 
        from bzrlib.fetch import Fetcher
50
 
        os.mkdir('b1')
51
 
        os.mkdir('b2')
52
 
        b1 = Branch.initialize('b1')
53
 
        b2 = Branch.initialize('b2')
54
 
        file('b1/foo', 'w').write('hello')
55
 
        b1.working_tree().add(['foo'], ['foo-id'])
56
 
        b1.working_tree().commit('lala!', rev_id='revision-1', allow_pointless=False)
57
 
 
58
 
        mutter('start fetch')
59
 
        f = Fetcher(from_branch=b1, to_branch=b2)
60
 
        eq = self.assertEquals
61
 
        eq(f.count_copied, 1)
62
 
        eq(f.last_revision, 'revision-1')
63
 
 
64
 
        rev = b2.get_revision('revision-1')
65
 
        tree = b2.revision_tree('revision-1')
66
 
        eq(tree.get_file_text('foo-id'), 'hello')
67
 
 
68
 
    def test_revision_tree(self):
69
 
        b1 = Branch.initialize(u'.')
70
 
        b1.working_tree().commit('lala!', rev_id='revision-1', allow_pointless=True)
71
 
        tree = b1.revision_tree('revision-1')
72
 
        tree = b1.revision_tree(None)
73
 
        self.assertEqual(len(tree.list_files()), 0)
74
 
        tree = b1.revision_tree(NULL_REVISION)
75
 
        self.assertEqual(len(tree.list_files()), 0)
76
 
 
77
 
    def get_unbalanced_branch_pair(self):
78
 
        """Return two branches, a and b, with one file in a."""
79
 
        os.mkdir('a')
80
 
        br_a = Branch.initialize("a")
81
 
        file('a/b', 'wb').write('b')
82
 
        br_a.working_tree().add('b')
83
 
        commit(br_a, "silly commit", rev_id='A')
84
 
        os.mkdir('b')
85
 
        br_b = Branch.initialize("b")
86
 
        return br_a, br_b
87
 
 
88
 
    def get_balanced_branch_pair(self):
89
 
        """Returns br_a, br_b as with one commit in a, and b has a's stores."""
90
 
        br_a, br_b = self.get_unbalanced_branch_pair()
91
 
        br_a.push_stores(br_b)
92
 
        return br_a, br_b
93
 
 
94
 
    def test_push_stores(self):
95
 
        """Copy the stores from one branch to another"""
96
 
        br_a, br_b = self.get_unbalanced_branch_pair()
97
 
        # ensure the revision is missing.
98
 
        self.assertRaises(NoSuchRevision, br_b.get_revision, 
99
 
                          br_a.revision_history()[0])
100
 
        br_a.push_stores(br_b)
101
 
        # check that b now has all the data from a's first commit.
102
 
        rev = br_b.get_revision(br_a.revision_history()[0])
103
 
        tree = br_b.revision_tree(br_a.revision_history()[0])
104
 
        for file_id in tree:
105
 
            if tree.inventory[file_id].kind == "file":
106
 
                tree.get_file(file_id).read()
107
 
        return br_a, br_b
108
 
 
109
 
    def test_copy_branch(self):
110
 
        """Copy the stores from one branch to another"""
111
 
        br_a, br_b = self.get_balanced_branch_pair()
112
 
        commit(br_b, "silly commit")
113
 
        os.mkdir('c')
114
 
        br_c = copy_branch(br_a, 'c', basis_branch=br_b)
115
 
        self.assertEqual(br_a.revision_history(), br_c.revision_history())
116
 
 
117
 
    def test_copy_partial(self):
118
 
        """Copy only part of the history of a branch."""
119
 
        self.build_tree(['a/', 'a/one'])
120
 
        br_a = Branch.initialize('a')
121
 
        br_a.working_tree().add(['one'])
122
 
        br_a.working_tree().commit('commit one', rev_id='u@d-1')
123
 
        self.build_tree(['a/two'])
124
 
        br_a.working_tree().add(['two'])
125
 
        br_a.working_tree().commit('commit two', rev_id='u@d-2')
126
 
        br_b = copy_branch(br_a, 'b', revision='u@d-1')
127
 
        self.assertEqual(br_b.last_revision(), 'u@d-1')
128
 
        self.assertTrue(os.path.exists('b/one'))
129
 
        self.assertFalse(os.path.exists('b/two'))
130
 
        
131
 
    def test_record_initial_ghost_merge(self):
132
 
        """A pending merge with no revision present is still a merge."""
133
 
        branch = Branch.initialize(u'.')
134
 
        branch.working_tree().add_pending_merge('non:existent@rev--ision--0--2')
135
 
        branch.working_tree().commit('pretend to merge nonexistent-revision', rev_id='first')
136
 
        rev = branch.get_revision(branch.last_revision())
137
 
        self.assertEqual(len(rev.parent_ids), 1)
138
 
        # parent_sha1s is not populated now, WTF. rbc 20051003
139
 
        self.assertEqual(len(rev.parent_sha1s), 0)
140
 
        self.assertEqual(rev.parent_ids[0], 'non:existent@rev--ision--0--2')
141
 
 
142
 
    def test_bad_revision(self):
143
 
        branch = Branch.initialize(u'.')
144
 
        self.assertRaises(errors.InvalidRevisionId, branch.get_revision, None)
145
 
 
146
 
# TODO 20051003 RBC:
147
 
# compare the gpg-to-sign info for a commit with a ghost and 
148
 
#     an identical tree without a ghost
149
 
# fetch missing should rewrite the TOC of weaves to list newly available parents.
150
 
        
151
 
    def test_pending_merges(self):
152
 
        """Tracking pending-merged revisions."""
153
 
        b = Branch.initialize(u'.')
154
 
        wt = b.working_tree()
155
 
        self.assertEquals(wt.pending_merges(), [])
156
 
        wt.add_pending_merge('foo@azkhazan-123123-abcabc')
157
 
        self.assertEquals(wt.pending_merges(), ['foo@azkhazan-123123-abcabc'])
158
 
        wt.add_pending_merge('foo@azkhazan-123123-abcabc')
159
 
        self.assertEquals(wt.pending_merges(), ['foo@azkhazan-123123-abcabc'])
160
 
        wt.add_pending_merge('wibble@fofof--20050401--1928390812')
161
 
        self.assertEquals(wt.pending_merges(),
162
 
                          ['foo@azkhazan-123123-abcabc',
163
 
                           'wibble@fofof--20050401--1928390812'])
164
 
        b.working_tree().commit("commit from base with two merges")
165
 
        rev = b.get_revision(b.revision_history()[0])
166
 
        self.assertEquals(len(rev.parent_ids), 2)
167
 
        self.assertEquals(rev.parent_ids[0],
168
 
                          'foo@azkhazan-123123-abcabc')
169
 
        self.assertEquals(rev.parent_ids[1],
170
 
                           'wibble@fofof--20050401--1928390812')
171
 
        # list should be cleared when we do a commit
172
 
        self.assertEquals(wt.pending_merges(), [])
173
 
 
174
 
    def test_sign_existing_revision(self):
175
 
        branch = Branch.initialize(u'.')
176
 
        branch.working_tree().commit("base", allow_pointless=True, rev_id='A')
177
 
        from bzrlib.testament import Testament
178
 
        branch.sign_revision('A', bzrlib.gpg.LoopbackGPGStrategy(None))
179
 
        self.assertEqual(Testament.from_revision(branch, 'A').as_short_text(),
180
 
                         branch.revision_store.get('A', 'sig').read())
181
 
 
182
 
    def test_store_signature(self):
183
 
        branch = Branch.initialize(u'.')
184
 
        branch.store_revision_signature(bzrlib.gpg.LoopbackGPGStrategy(None),
185
 
                                        'FOO', 'A')
186
 
        self.assertEqual('FOO', branch.revision_store.get('A', 'sig').read())
187
 
 
188
 
    def test__relcontrolfilename(self):
189
 
        branch = Branch.initialize(u'.')
190
 
        self.assertEqual('.bzr/%25', branch._rel_controlfilename('%'))
191
 
        
192
 
    def test__relcontrolfilename_empty(self):
193
 
        branch = Branch.initialize(u'.')
194
 
        self.assertEqual('.bzr', branch._rel_controlfilename(''))
195
 
 
196
 
    def test_nicks(self):
197
 
        """Branch nicknames"""
198
 
        os.mkdir('bzr.dev')
199
 
        branch = Branch.initialize('bzr.dev')
200
 
        self.assertEqual(branch.nick, 'bzr.dev')
201
 
        os.rename('bzr.dev', 'bzr.ab')
202
 
        branch = Branch.open('bzr.ab')
203
 
        self.assertEqual(branch.nick, 'bzr.ab')
204
 
        branch.nick = "Aaron's branch"
205
 
        branch.nick = "Aaron's branch"
206
 
        self.failUnless(os.path.exists(branch.controlfilename("branch.conf")))
207
 
        self.assertEqual(branch.nick, "Aaron's branch")
208
 
        os.rename('bzr.ab', 'integration')
209
 
        branch = Branch.open('integration')
210
 
        self.assertEqual(branch.nick, "Aaron's branch")
211
 
        branch.nick = u"\u1234"
212
 
        self.assertEqual(branch.nick, u"\u1234")
213
 
 
214
 
    def test_commit_nicks(self):
215
 
        """Nicknames are committed to the revision"""
216
 
        os.mkdir('bzr.dev')
217
 
        branch = Branch.initialize('bzr.dev')
218
 
        branch.nick = "My happy branch"
219
 
        branch.working_tree().commit('My commit respect da nick.')
220
 
        committed = branch.get_revision(branch.last_revision())
221
 
        self.assertEqual(committed.properties["branch-nick"], 
222
 
                         "My happy branch")
223
 
 
224
 
    def test_no_ancestry_weave(self):
225
 
        # We no longer need to create the ancestry.weave file
226
 
        # since it is *never* used.
227
 
        branch = Branch.initialize(u'.')
228
 
        self.failIfExists('.bzr/ancestry.weave')
229
 
 
230
 
 
231
 
class TestRemote(TestCaseWithWebserver):
232
 
 
233
 
    def test_open_containing(self):
234
 
        self.assertRaises(NotBranchError, Branch.open_containing,
235
 
                          self.get_remote_url(''))
236
 
        self.assertRaises(NotBranchError, Branch.open_containing,
237
 
                          self.get_remote_url('g/p/q'))
238
 
        b = Branch.initialize(u'.')
239
 
        branch, relpath = Branch.open_containing(self.get_remote_url(''))
240
 
        self.assertEqual('', relpath)
241
 
        branch, relpath = Branch.open_containing(self.get_remote_url('g/p/q'))
242
 
        self.assertEqual('g/p/q', relpath)
243
 
        
244
 
# TODO: rewrite this as a regular unittest, without relying on the displayed output        
245
 
#         >>> from bzrlib.commit import commit
246
 
#         >>> bzrlib.trace.silent = True
247
 
#         >>> br1 = ScratchBranch(files=['foo', 'bar'])
248
 
#         >>> br1.working_tree().add('foo')
249
 
#         >>> br1.working_tree().add('bar')
250
 
#         >>> commit(br1, "lala!", rev_id="REVISION-ID-1", verbose=False)
251
 
#         >>> br2 = ScratchBranch()
252
 
#         >>> br2.update_revisions(br1)
253
 
#         Added 2 texts.
254
 
#         Added 1 inventories.
255
 
#         Added 1 revisions.
256
 
#         >>> br2.revision_history()
257
 
#         [u'REVISION-ID-1']
258
 
#         >>> br2.update_revisions(br1)
259
 
#         Added 0 revisions.
260
 
#         >>> br1.text_store.total_size() == br2.text_store.total_size()
261
 
#         True
262
 
 
263
 
class InstrumentedTransaction(object):
264
 
 
265
 
    def finish(self):
266
 
        self.calls.append('finish')
267
 
 
268
 
    def __init__(self):
269
 
        self.calls = []
270
 
 
271
 
 
272
 
class TestDecorator(object):
273
 
 
274
 
    def __init__(self):
275
 
        self._calls = []
276
 
 
277
 
    def lock_read(self):
278
 
        self._calls.append('lr')
279
 
 
280
 
    def lock_write(self):
281
 
        self._calls.append('lw')
282
 
 
283
 
    def unlock(self):
284
 
        self._calls.append('ul')
285
 
 
286
 
    @needs_read_lock
287
 
    def do_with_read(self):
288
 
        return 1
289
 
 
290
 
    @needs_read_lock
291
 
    def except_with_read(self):
292
 
        raise RuntimeError
293
 
 
294
 
    @needs_write_lock
295
 
    def do_with_write(self):
296
 
        return 2
297
 
 
298
 
    @needs_write_lock
299
 
    def except_with_write(self):
300
 
        raise RuntimeError
301
 
 
302
 
 
303
 
class TestDecorators(TestCase):
304
 
 
305
 
    def test_needs_read_lock(self):
306
 
        branch = TestDecorator()
307
 
        self.assertEqual(1, branch.do_with_read())
308
 
        self.assertEqual(['lr', 'ul'], branch._calls)
309
 
 
310
 
    def test_excepts_in_read_lock(self):
311
 
        branch = TestDecorator()
312
 
        self.assertRaises(RuntimeError, branch.except_with_read)
313
 
        self.assertEqual(['lr', 'ul'], branch._calls)
314
 
 
315
 
    def test_needs_write_lock(self):
316
 
        branch = TestDecorator()
317
 
        self.assertEqual(2, branch.do_with_write())
318
 
        self.assertEqual(['lw', 'ul'], branch._calls)
319
 
 
320
 
    def test_excepts_in_write_lock(self):
321
 
        branch = TestDecorator()
322
 
        self.assertRaises(RuntimeError, branch.except_with_write)
323
 
        self.assertEqual(['lw', 'ul'], branch._calls)
324
 
 
325
 
 
326
 
class TestBranchTransaction(TestCaseInTempDir):
327
 
 
328
 
    def setUp(self):
329
 
        super(TestBranchTransaction, self).setUp()
330
 
        self.branch = Branch.initialize(u'.')
331
 
        
332
 
    def test_default_get_transaction(self):
333
 
        """branch.get_transaction on a new branch should give a PassThrough."""
334
 
        self.failUnless(isinstance(self.branch.get_transaction(),
335
 
                                   transactions.PassThroughTransaction))
336
 
 
337
 
    def test__set_new_transaction(self):
338
 
        self.branch._set_transaction(transactions.ReadOnlyTransaction())
339
 
 
340
 
    def test__set_over_existing_transaction_raises(self):
341
 
        self.branch._set_transaction(transactions.ReadOnlyTransaction())
342
 
        self.assertRaises(errors.LockError,
343
 
                          self.branch._set_transaction,
344
 
                          transactions.ReadOnlyTransaction())
345
 
 
346
 
    def test_finish_no_transaction_raises(self):
347
 
        self.assertRaises(errors.LockError, self.branch._finish_transaction)
348
 
 
349
 
    def test_finish_readonly_transaction_works(self):
350
 
        self.branch._set_transaction(transactions.ReadOnlyTransaction())
351
 
        self.branch._finish_transaction()
352
 
        self.assertEqual(None, self.branch._transaction)
353
 
 
354
 
    def test_unlock_calls_finish(self):
355
 
        self.branch.lock_read()
356
 
        transaction = InstrumentedTransaction()
357
 
        self.branch._transaction = transaction
358
 
        self.branch.unlock()
359
 
        self.assertEqual(['finish'], transaction.calls)
360
 
 
361
 
    def test_lock_read_acquires_ro_transaction(self):
362
 
        self.branch.lock_read()
363
 
        self.failUnless(isinstance(self.branch.get_transaction(),
364
 
                                   transactions.ReadOnlyTransaction))
365
 
        self.branch.unlock()
366
 
        
367
 
    def test_lock_write_acquires_passthrough_transaction(self):
368
 
        self.branch.lock_write()
369
 
        # cannot use get_transaction as its magic
370
 
        self.failUnless(isinstance(self.branch._transaction,
371
 
                                   transactions.PassThroughTransaction))
372
 
        self.branch.unlock()
373
 
 
374
 
 
375
 
class TestBranchPushLocations(TestCaseInTempDir):
376
 
 
377
 
    def setUp(self):
378
 
        super(TestBranchPushLocations, self).setUp()
379
 
        self.branch = Branch.initialize(u'.')
380
 
        
381
 
    def test_get_push_location_unset(self):
382
 
        self.assertEqual(None, self.branch.get_push_location())
383
 
 
384
 
    def test_get_push_location_exact(self):
385
 
        from bzrlib.config import (branches_config_filename,
386
 
                                   ensure_config_dir_exists)
387
 
        ensure_config_dir_exists()
388
 
        fn = branches_config_filename()
389
 
        print >> open(fn, 'wt'), ("[%s]\n"
390
 
                                  "push_location=foo" %
391
 
                                  getcwd())
392
 
        self.assertEqual("foo", self.branch.get_push_location())
393
 
 
394
 
    def test_set_push_location(self):
395
 
        from bzrlib.config import (branches_config_filename,
396
 
                                   ensure_config_dir_exists)
397
 
        ensure_config_dir_exists()
398
 
        fn = branches_config_filename()
399
 
        self.branch.set_push_location('foo')
400
 
        self.assertFileEqual("[%s]\n"
401
 
                             "push_location = foo" % getcwd(),
402
 
                             fn)
403
 
 
404
 
    # TODO RBC 20051029 test getting a push location from a branch in a 
405
 
    # recursive section - that is, it appends the branch name.