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  • Committer: Canonical.com Patch Queue Manager
  • Date: 2008-05-29 15:57:16 UTC
  • mfrom: (3427.5.9 dep_warnings)
  • Revision ID: pqm@pqm.ubuntu.com-20080529155716-0w3kic8lioa63231
(jam) Enable Deprecation Warnings when running -Werror and when
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1
# Copyright (C) 2006, 2007, 2008 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
"""Tests for remote bzrdir/branch/repo/etc
 
18
 
 
19
These are proxy objects which act on remote objects by sending messages
 
20
through a smart client.  The proxies are to be created when attempting to open
 
21
the object given a transport that supports smartserver rpc operations. 
 
22
 
 
23
These tests correspond to tests.test_smart, which exercises the server side.
 
24
"""
 
25
 
 
26
import bz2
 
27
from cStringIO import StringIO
 
28
 
 
29
from bzrlib import (
 
30
    errors,
 
31
    graph,
 
32
    pack,
 
33
    remote,
 
34
    repository,
 
35
    tests,
 
36
    )
 
37
from bzrlib.branch import Branch
 
38
from bzrlib.bzrdir import BzrDir, BzrDirFormat
 
39
from bzrlib.remote import (
 
40
    RemoteBranch,
 
41
    RemoteBzrDir,
 
42
    RemoteBzrDirFormat,
 
43
    RemoteRepository,
 
44
    )
 
45
from bzrlib.revision import NULL_REVISION
 
46
from bzrlib.smart import server, medium
 
47
from bzrlib.smart.client import _SmartClient
 
48
from bzrlib.symbol_versioning import one_four
 
49
from bzrlib.transport import get_transport, http
 
50
from bzrlib.transport.memory import MemoryTransport
 
51
from bzrlib.transport.remote import RemoteTransport, RemoteTCPTransport
 
52
 
 
53
 
 
54
class BasicRemoteObjectTests(tests.TestCaseWithTransport):
 
55
 
 
56
    def setUp(self):
 
57
        self.transport_server = server.SmartTCPServer_for_testing
 
58
        super(BasicRemoteObjectTests, self).setUp()
 
59
        self.transport = self.get_transport()
 
60
        # make a branch that can be opened over the smart transport
 
61
        self.local_wt = BzrDir.create_standalone_workingtree('.')
 
62
 
 
63
    def tearDown(self):
 
64
        self.transport.disconnect()
 
65
        tests.TestCaseWithTransport.tearDown(self)
 
66
 
 
67
    def test_create_remote_bzrdir(self):
 
68
        b = remote.RemoteBzrDir(self.transport)
 
69
        self.assertIsInstance(b, BzrDir)
 
70
 
 
71
    def test_open_remote_branch(self):
 
72
        # open a standalone branch in the working directory
 
73
        b = remote.RemoteBzrDir(self.transport)
 
74
        branch = b.open_branch()
 
75
        self.assertIsInstance(branch, Branch)
 
76
 
 
77
    def test_remote_repository(self):
 
78
        b = BzrDir.open_from_transport(self.transport)
 
79
        repo = b.open_repository()
 
80
        revid = u'\xc823123123'.encode('utf8')
 
81
        self.assertFalse(repo.has_revision(revid))
 
82
        self.local_wt.commit(message='test commit', rev_id=revid)
 
83
        self.assertTrue(repo.has_revision(revid))
 
84
 
 
85
    def test_remote_branch_revision_history(self):
 
86
        b = BzrDir.open_from_transport(self.transport).open_branch()
 
87
        self.assertEqual([], b.revision_history())
 
88
        r1 = self.local_wt.commit('1st commit')
 
89
        r2 = self.local_wt.commit('1st commit', rev_id=u'\xc8'.encode('utf8'))
 
90
        self.assertEqual([r1, r2], b.revision_history())
 
91
 
 
92
    def test_find_correct_format(self):
 
93
        """Should open a RemoteBzrDir over a RemoteTransport"""
 
94
        fmt = BzrDirFormat.find_format(self.transport)
 
95
        self.assertTrue(RemoteBzrDirFormat
 
96
                        in BzrDirFormat._control_server_formats)
 
97
        self.assertIsInstance(fmt, remote.RemoteBzrDirFormat)
 
98
 
 
99
    def test_open_detected_smart_format(self):
 
100
        fmt = BzrDirFormat.find_format(self.transport)
 
101
        d = fmt.open(self.transport)
 
102
        self.assertIsInstance(d, BzrDir)
 
103
 
 
104
    def test_remote_branch_repr(self):
 
105
        b = BzrDir.open_from_transport(self.transport).open_branch()
 
106
        self.assertStartsWith(str(b), 'RemoteBranch(')
 
107
 
 
108
 
 
109
class FakeProtocol(object):
 
110
    """Lookalike SmartClientRequestProtocolOne allowing body reading tests."""
 
111
 
 
112
    def __init__(self, body, fake_client):
 
113
        self.body = body
 
114
        self._body_buffer = None
 
115
        self._fake_client = fake_client
 
116
 
 
117
    def read_body_bytes(self, count=-1):
 
118
        if self._body_buffer is None:
 
119
            self._body_buffer = StringIO(self.body)
 
120
        bytes = self._body_buffer.read(count)
 
121
        if self._body_buffer.tell() == len(self._body_buffer.getvalue()):
 
122
            self._fake_client.expecting_body = False
 
123
        return bytes
 
124
 
 
125
    def cancel_read_body(self):
 
126
        self._fake_client.expecting_body = False
 
127
 
 
128
    def read_streamed_body(self):
 
129
        return self.body
 
130
 
 
131
 
 
132
class FakeClient(_SmartClient):
 
133
    """Lookalike for _SmartClient allowing testing."""
 
134
    
 
135
    def __init__(self, fake_medium_base='fake base'):
 
136
        """Create a FakeClient.
 
137
 
 
138
        :param responses: A list of response-tuple, body-data pairs to be sent
 
139
            back to callers.  A special case is if the response-tuple is
 
140
            'unknown verb', then a UnknownSmartMethod will be raised for that
 
141
            call, using the second element of the tuple as the verb in the
 
142
            exception.
 
143
        """
 
144
        self.responses = []
 
145
        self._calls = []
 
146
        self.expecting_body = False
 
147
        _SmartClient.__init__(self, FakeMedium(self._calls, fake_medium_base))
 
148
 
 
149
    def add_success_response(self, *args):
 
150
        self.responses.append(('success', args, None))
 
151
 
 
152
    def add_success_response_with_body(self, body, *args):
 
153
        self.responses.append(('success', args, body))
 
154
 
 
155
    def add_error_response(self, *args):
 
156
        self.responses.append(('error', args))
 
157
 
 
158
    def add_unknown_method_response(self, verb):
 
159
        self.responses.append(('unknown', verb))
 
160
 
 
161
    def _get_next_response(self):
 
162
        response_tuple = self.responses.pop(0)
 
163
        if response_tuple[0] == 'unknown':
 
164
            raise errors.UnknownSmartMethod(response_tuple[1])
 
165
        elif response_tuple[0] == 'error':
 
166
            raise errors.ErrorFromSmartServer(response_tuple[1])
 
167
        return response_tuple
 
168
 
 
169
    def call(self, method, *args):
 
170
        self._calls.append(('call', method, args))
 
171
        return self._get_next_response()[1]
 
172
 
 
173
    def call_expecting_body(self, method, *args):
 
174
        self._calls.append(('call_expecting_body', method, args))
 
175
        result = self._get_next_response()
 
176
        self.expecting_body = True
 
177
        return result[1], FakeProtocol(result[2], self)
 
178
 
 
179
    def call_with_body_bytes_expecting_body(self, method, args, body):
 
180
        self._calls.append(('call_with_body_bytes_expecting_body', method,
 
181
            args, body))
 
182
        result = self._get_next_response()
 
183
        self.expecting_body = True
 
184
        return result[1], FakeProtocol(result[2], self)
 
185
 
 
186
 
 
187
class FakeMedium(medium.SmartClientMedium):
 
188
 
 
189
    def __init__(self, client_calls, base):
 
190
        self._remote_is_at_least_1_2 = True
 
191
        self._client_calls = client_calls
 
192
        self.base = base
 
193
 
 
194
    def disconnect(self):
 
195
        self._client_calls.append(('disconnect medium',))
 
196
 
 
197
 
 
198
class TestVfsHas(tests.TestCase):
 
199
 
 
200
    def test_unicode_path(self):
 
201
        client = FakeClient('/')
 
202
        client.add_success_response('yes',)
 
203
        transport = RemoteTransport('bzr://localhost/', _client=client)
 
204
        filename = u'/hell\u00d8'.encode('utf8')
 
205
        result = transport.has(filename)
 
206
        self.assertEqual(
 
207
            [('call', 'has', (filename,))],
 
208
            client._calls)
 
209
        self.assertTrue(result)
 
210
 
 
211
 
 
212
class Test_ClientMedium_remote_path_from_transport(tests.TestCase):
 
213
    """Tests for the behaviour of client_medium.remote_path_from_transport."""
 
214
 
 
215
    def assertRemotePath(self, expected, client_base, transport_base):
 
216
        """Assert that the result of
 
217
        SmartClientMedium.remote_path_from_transport is the expected value for
 
218
        a given client_base and transport_base.
 
219
        """
 
220
        client_medium = medium.SmartClientMedium(client_base)
 
221
        transport = get_transport(transport_base)
 
222
        result = client_medium.remote_path_from_transport(transport)
 
223
        self.assertEqual(expected, result)
 
224
 
 
225
    def test_remote_path_from_transport(self):
 
226
        """SmartClientMedium.remote_path_from_transport calculates a URL for
 
227
        the given transport relative to the root of the client base URL.
 
228
        """
 
229
        self.assertRemotePath('xyz/', 'bzr://host/path', 'bzr://host/xyz')
 
230
        self.assertRemotePath(
 
231
            'path/xyz/', 'bzr://host/path', 'bzr://host/path/xyz')
 
232
 
 
233
    def assertRemotePathHTTP(self, expected, transport_base, relpath):
 
234
        """Assert that the result of
 
235
        HttpTransportBase.remote_path_from_transport is the expected value for
 
236
        a given transport_base and relpath of that transport.  (Note that
 
237
        HttpTransportBase is a subclass of SmartClientMedium)
 
238
        """
 
239
        base_transport = get_transport(transport_base)
 
240
        client_medium = base_transport.get_smart_medium()
 
241
        cloned_transport = base_transport.clone(relpath)
 
242
        result = client_medium.remote_path_from_transport(cloned_transport)
 
243
        self.assertEqual(expected, result)
 
244
        
 
245
    def test_remote_path_from_transport_http(self):
 
246
        """Remote paths for HTTP transports are calculated differently to other
 
247
        transports.  They are just relative to the client base, not the root
 
248
        directory of the host.
 
249
        """
 
250
        for scheme in ['http:', 'https:', 'bzr+http:', 'bzr+https:']:
 
251
            self.assertRemotePathHTTP(
 
252
                '../xyz/', scheme + '//host/path', '../xyz/')
 
253
            self.assertRemotePathHTTP(
 
254
                'xyz/', scheme + '//host/path', 'xyz/')
 
255
 
 
256
 
 
257
class TestBzrDirOpenBranch(tests.TestCase):
 
258
 
 
259
    def test_branch_present(self):
 
260
        transport = MemoryTransport()
 
261
        transport.mkdir('quack')
 
262
        transport = transport.clone('quack')
 
263
        client = FakeClient(transport.base)
 
264
        client.add_success_response('ok', '')
 
265
        client.add_success_response('ok', '', 'no', 'no', 'no')
 
266
        bzrdir = RemoteBzrDir(transport, _client=client)
 
267
        result = bzrdir.open_branch()
 
268
        self.assertEqual(
 
269
            [('call', 'BzrDir.open_branch', ('quack/',)),
 
270
             ('call', 'BzrDir.find_repositoryV2', ('quack/',))],
 
271
            client._calls)
 
272
        self.assertIsInstance(result, RemoteBranch)
 
273
        self.assertEqual(bzrdir, result.bzrdir)
 
274
 
 
275
    def test_branch_missing(self):
 
276
        transport = MemoryTransport()
 
277
        transport.mkdir('quack')
 
278
        transport = transport.clone('quack')
 
279
        client = FakeClient(transport.base)
 
280
        client.add_error_response('nobranch')
 
281
        bzrdir = RemoteBzrDir(transport, _client=client)
 
282
        self.assertRaises(errors.NotBranchError, bzrdir.open_branch)
 
283
        self.assertEqual(
 
284
            [('call', 'BzrDir.open_branch', ('quack/',))],
 
285
            client._calls)
 
286
 
 
287
    def test__get_tree_branch(self):
 
288
        # _get_tree_branch is a form of open_branch, but it should only ask for
 
289
        # branch opening, not any other network requests.
 
290
        calls = []
 
291
        def open_branch():
 
292
            calls.append("Called")
 
293
            return "a-branch"
 
294
        transport = MemoryTransport()
 
295
        # no requests on the network - catches other api calls being made.
 
296
        client = FakeClient(transport.base)
 
297
        bzrdir = RemoteBzrDir(transport, _client=client)
 
298
        # patch the open_branch call to record that it was called.
 
299
        bzrdir.open_branch = open_branch
 
300
        self.assertEqual((None, "a-branch"), bzrdir._get_tree_branch())
 
301
        self.assertEqual(["Called"], calls)
 
302
        self.assertEqual([], client._calls)
 
303
 
 
304
    def test_url_quoting_of_path(self):
 
305
        # Relpaths on the wire should not be URL-escaped.  So "~" should be
 
306
        # transmitted as "~", not "%7E".
 
307
        transport = RemoteTCPTransport('bzr://localhost/~hello/')
 
308
        client = FakeClient(transport.base)
 
309
        client.add_success_response('ok', '')
 
310
        client.add_success_response('ok', '', 'no', 'no', 'no')
 
311
        bzrdir = RemoteBzrDir(transport, _client=client)
 
312
        result = bzrdir.open_branch()
 
313
        self.assertEqual(
 
314
            [('call', 'BzrDir.open_branch', ('~hello/',)),
 
315
             ('call', 'BzrDir.find_repositoryV2', ('~hello/',))],
 
316
            client._calls)
 
317
 
 
318
    def check_open_repository(self, rich_root, subtrees, external_lookup='no'):
 
319
        transport = MemoryTransport()
 
320
        transport.mkdir('quack')
 
321
        transport = transport.clone('quack')
 
322
        if rich_root:
 
323
            rich_response = 'yes'
 
324
        else:
 
325
            rich_response = 'no'
 
326
        if subtrees:
 
327
            subtree_response = 'yes'
 
328
        else:
 
329
            subtree_response = 'no'
 
330
        client = FakeClient(transport.base)
 
331
        client.add_success_response(
 
332
            'ok', '', rich_response, subtree_response, external_lookup)
 
333
        bzrdir = RemoteBzrDir(transport, _client=client)
 
334
        result = bzrdir.open_repository()
 
335
        self.assertEqual(
 
336
            [('call', 'BzrDir.find_repositoryV2', ('quack/',))],
 
337
            client._calls)
 
338
        self.assertIsInstance(result, RemoteRepository)
 
339
        self.assertEqual(bzrdir, result.bzrdir)
 
340
        self.assertEqual(rich_root, result._format.rich_root_data)
 
341
        self.assertEqual(subtrees, result._format.supports_tree_reference)
 
342
 
 
343
    def test_open_repository_sets_format_attributes(self):
 
344
        self.check_open_repository(True, True)
 
345
        self.check_open_repository(False, True)
 
346
        self.check_open_repository(True, False)
 
347
        self.check_open_repository(False, False)
 
348
        self.check_open_repository(False, False, 'yes')
 
349
 
 
350
    def test_old_server(self):
 
351
        """RemoteBzrDirFormat should fail to probe if the server version is too
 
352
        old.
 
353
        """
 
354
        self.assertRaises(errors.NotBranchError,
 
355
            RemoteBzrDirFormat.probe_transport, OldServerTransport())
 
356
 
 
357
 
 
358
class TestBzrDirOpenRepository(tests.TestCase):
 
359
 
 
360
    def test_backwards_compat_1_2(self):
 
361
        transport = MemoryTransport()
 
362
        transport.mkdir('quack')
 
363
        transport = transport.clone('quack')
 
364
        client = FakeClient(transport.base)
 
365
        client.add_unknown_method_response('RemoteRepository.find_repositoryV2')
 
366
        client.add_success_response('ok', '', 'no', 'no')
 
367
        bzrdir = RemoteBzrDir(transport, _client=client)
 
368
        repo = bzrdir.open_repository()
 
369
        self.assertEqual(
 
370
            [('call', 'BzrDir.find_repositoryV2', ('quack/',)),
 
371
             ('call', 'BzrDir.find_repository', ('quack/',))],
 
372
            client._calls)
 
373
 
 
374
 
 
375
class OldSmartClient(object):
 
376
    """A fake smart client for test_old_version that just returns a version one
 
377
    response to the 'hello' (query version) command.
 
378
    """
 
379
 
 
380
    def get_request(self):
 
381
        input_file = StringIO('ok\x011\n')
 
382
        output_file = StringIO()
 
383
        client_medium = medium.SmartSimplePipesClientMedium(
 
384
            input_file, output_file)
 
385
        return medium.SmartClientStreamMediumRequest(client_medium)
 
386
 
 
387
    def protocol_version(self):
 
388
        return 1
 
389
 
 
390
 
 
391
class OldServerTransport(object):
 
392
    """A fake transport for test_old_server that reports it's smart server
 
393
    protocol version as version one.
 
394
    """
 
395
 
 
396
    def __init__(self):
 
397
        self.base = 'fake:'
 
398
 
 
399
    def get_smart_client(self):
 
400
        return OldSmartClient()
 
401
 
 
402
 
 
403
class TestBranchLastRevisionInfo(tests.TestCase):
 
404
 
 
405
    def test_empty_branch(self):
 
406
        # in an empty branch we decode the response properly
 
407
        transport = MemoryTransport()
 
408
        client = FakeClient(transport.base)
 
409
        client.add_success_response('ok', '0', 'null:')
 
410
        transport.mkdir('quack')
 
411
        transport = transport.clone('quack')
 
412
        # we do not want bzrdir to make any remote calls
 
413
        bzrdir = RemoteBzrDir(transport, _client=False)
 
414
        branch = RemoteBranch(bzrdir, None, _client=client)
 
415
        result = branch.last_revision_info()
 
416
 
 
417
        self.assertEqual(
 
418
            [('call', 'Branch.last_revision_info', ('quack/',))],
 
419
            client._calls)
 
420
        self.assertEqual((0, NULL_REVISION), result)
 
421
 
 
422
    def test_non_empty_branch(self):
 
423
        # in a non-empty branch we also decode the response properly
 
424
        revid = u'\xc8'.encode('utf8')
 
425
        transport = MemoryTransport()
 
426
        client = FakeClient(transport.base)
 
427
        client.add_success_response('ok', '2', revid)
 
428
        transport.mkdir('kwaak')
 
429
        transport = transport.clone('kwaak')
 
430
        # we do not want bzrdir to make any remote calls
 
431
        bzrdir = RemoteBzrDir(transport, _client=False)
 
432
        branch = RemoteBranch(bzrdir, None, _client=client)
 
433
        result = branch.last_revision_info()
 
434
 
 
435
        self.assertEqual(
 
436
            [('call', 'Branch.last_revision_info', ('kwaak/',))],
 
437
            client._calls)
 
438
        self.assertEqual((2, revid), result)
 
439
 
 
440
 
 
441
class TestBranchSetLastRevision(tests.TestCase):
 
442
 
 
443
    def test_set_empty(self):
 
444
        # set_revision_history([]) is translated to calling
 
445
        # Branch.set_last_revision(path, '') on the wire.
 
446
        transport = MemoryTransport()
 
447
        transport.mkdir('branch')
 
448
        transport = transport.clone('branch')
 
449
 
 
450
        client = FakeClient(transport.base)
 
451
        # lock_write
 
452
        client.add_success_response('ok', 'branch token', 'repo token')
 
453
        # set_last_revision
 
454
        client.add_success_response('ok')
 
455
        # unlock
 
456
        client.add_success_response('ok')
 
457
        bzrdir = RemoteBzrDir(transport, _client=False)
 
458
        branch = RemoteBranch(bzrdir, None, _client=client)
 
459
        # This is a hack to work around the problem that RemoteBranch currently
 
460
        # unnecessarily invokes _ensure_real upon a call to lock_write.
 
461
        branch._ensure_real = lambda: None
 
462
        branch.lock_write()
 
463
        client._calls = []
 
464
        result = branch.set_revision_history([])
 
465
        self.assertEqual(
 
466
            [('call', 'Branch.set_last_revision',
 
467
                ('branch/', 'branch token', 'repo token', 'null:'))],
 
468
            client._calls)
 
469
        branch.unlock()
 
470
        self.assertEqual(None, result)
 
471
 
 
472
    def test_set_nonempty(self):
 
473
        # set_revision_history([rev-id1, ..., rev-idN]) is translated to calling
 
474
        # Branch.set_last_revision(path, rev-idN) on the wire.
 
475
        transport = MemoryTransport()
 
476
        transport.mkdir('branch')
 
477
        transport = transport.clone('branch')
 
478
 
 
479
        client = FakeClient(transport.base)
 
480
        # lock_write
 
481
        client.add_success_response('ok', 'branch token', 'repo token')
 
482
        # set_last_revision
 
483
        client.add_success_response('ok')
 
484
        # unlock
 
485
        client.add_success_response('ok')
 
486
        bzrdir = RemoteBzrDir(transport, _client=False)
 
487
        branch = RemoteBranch(bzrdir, None, _client=client)
 
488
        # This is a hack to work around the problem that RemoteBranch currently
 
489
        # unnecessarily invokes _ensure_real upon a call to lock_write.
 
490
        branch._ensure_real = lambda: None
 
491
        # Lock the branch, reset the record of remote calls.
 
492
        branch.lock_write()
 
493
        client._calls = []
 
494
 
 
495
        result = branch.set_revision_history(['rev-id1', 'rev-id2'])
 
496
        self.assertEqual(
 
497
            [('call', 'Branch.set_last_revision',
 
498
                ('branch/', 'branch token', 'repo token', 'rev-id2'))],
 
499
            client._calls)
 
500
        branch.unlock()
 
501
        self.assertEqual(None, result)
 
502
 
 
503
    def test_no_such_revision(self):
 
504
        transport = MemoryTransport()
 
505
        transport.mkdir('branch')
 
506
        transport = transport.clone('branch')
 
507
        # A response of 'NoSuchRevision' is translated into an exception.
 
508
        client = FakeClient(transport.base)
 
509
        # lock_write
 
510
        client.add_success_response('ok', 'branch token', 'repo token')
 
511
        # set_last_revision
 
512
        client.add_error_response('NoSuchRevision', 'rev-id')
 
513
        # unlock
 
514
        client.add_success_response('ok')
 
515
 
 
516
        bzrdir = RemoteBzrDir(transport, _client=False)
 
517
        branch = RemoteBranch(bzrdir, None, _client=client)
 
518
        branch._ensure_real = lambda: None
 
519
        branch.lock_write()
 
520
        client._calls = []
 
521
 
 
522
        self.assertRaises(
 
523
            errors.NoSuchRevision, branch.set_revision_history, ['rev-id'])
 
524
        branch.unlock()
 
525
 
 
526
 
 
527
class TestBranchSetLastRevisionInfo(tests.TestCase):
 
528
 
 
529
    def test_set_last_revision_info(self):
 
530
        # set_last_revision_info(num, 'rev-id') is translated to calling
 
531
        # Branch.set_last_revision_info(num, 'rev-id') on the wire.
 
532
        transport = MemoryTransport()
 
533
        transport.mkdir('branch')
 
534
        transport = transport.clone('branch')
 
535
        client = FakeClient(transport.base)
 
536
        # lock_write
 
537
        client.add_success_response('ok', 'branch token', 'repo token')
 
538
        # set_last_revision
 
539
        client.add_success_response('ok')
 
540
        # unlock
 
541
        client.add_success_response('ok')
 
542
 
 
543
        bzrdir = RemoteBzrDir(transport, _client=False)
 
544
        branch = RemoteBranch(bzrdir, None, _client=client)
 
545
        # This is a hack to work around the problem that RemoteBranch currently
 
546
        # unnecessarily invokes _ensure_real upon a call to lock_write.
 
547
        branch._ensure_real = lambda: None
 
548
        # Lock the branch, reset the record of remote calls.
 
549
        branch.lock_write()
 
550
        client._calls = []
 
551
        result = branch.set_last_revision_info(1234, 'a-revision-id')
 
552
        self.assertEqual(
 
553
            [('call', 'Branch.set_last_revision_info',
 
554
                ('branch/', 'branch token', 'repo token',
 
555
                 '1234', 'a-revision-id'))],
 
556
            client._calls)
 
557
        self.assertEqual(None, result)
 
558
 
 
559
    def test_no_such_revision(self):
 
560
        # A response of 'NoSuchRevision' is translated into an exception.
 
561
        transport = MemoryTransport()
 
562
        transport.mkdir('branch')
 
563
        transport = transport.clone('branch')
 
564
        client = FakeClient(transport.base)
 
565
        # lock_write
 
566
        client.add_success_response('ok', 'branch token', 'repo token')
 
567
        # set_last_revision
 
568
        client.add_error_response('NoSuchRevision', 'revid')
 
569
        # unlock
 
570
        client.add_success_response('ok')
 
571
 
 
572
        bzrdir = RemoteBzrDir(transport, _client=False)
 
573
        branch = RemoteBranch(bzrdir, None, _client=client)
 
574
        # This is a hack to work around the problem that RemoteBranch currently
 
575
        # unnecessarily invokes _ensure_real upon a call to lock_write.
 
576
        branch._ensure_real = lambda: None
 
577
        # Lock the branch, reset the record of remote calls.
 
578
        branch.lock_write()
 
579
        client._calls = []
 
580
 
 
581
        self.assertRaises(
 
582
            errors.NoSuchRevision, branch.set_last_revision_info, 123, 'revid')
 
583
        branch.unlock()
 
584
 
 
585
    def lock_remote_branch(self, branch):
 
586
        """Trick a RemoteBranch into thinking it is locked."""
 
587
        branch._lock_mode = 'w'
 
588
        branch._lock_count = 2
 
589
        branch._lock_token = 'branch token'
 
590
        branch._repo_lock_token = 'repo token'
 
591
 
 
592
    def test_backwards_compatibility(self):
 
593
        """If the server does not support the Branch.set_last_revision_info
 
594
        verb (which is new in 1.4), then the client falls back to VFS methods.
 
595
        """
 
596
        # This test is a little messy.  Unlike most tests in this file, it
 
597
        # doesn't purely test what a Remote* object sends over the wire, and
 
598
        # how it reacts to responses from the wire.  It instead relies partly
 
599
        # on asserting that the RemoteBranch will call
 
600
        # self._real_branch.set_last_revision_info(...).
 
601
 
 
602
        # First, set up our RemoteBranch with a FakeClient that raises
 
603
        # UnknownSmartMethod, and a StubRealBranch that logs how it is called.
 
604
        transport = MemoryTransport()
 
605
        transport.mkdir('branch')
 
606
        transport = transport.clone('branch')
 
607
        client = FakeClient(transport.base)
 
608
        client.add_unknown_method_response('Branch.set_last_revision_info')
 
609
        bzrdir = RemoteBzrDir(transport, _client=False)
 
610
        branch = RemoteBranch(bzrdir, None, _client=client)
 
611
        class StubRealBranch(object):
 
612
            def __init__(self):
 
613
                self.calls = []
 
614
            def set_last_revision_info(self, revno, revision_id):
 
615
                self.calls.append(
 
616
                    ('set_last_revision_info', revno, revision_id))
 
617
        real_branch = StubRealBranch()
 
618
        branch._real_branch = real_branch
 
619
        self.lock_remote_branch(branch)
 
620
 
 
621
        # Call set_last_revision_info, and verify it behaved as expected.
 
622
        result = branch.set_last_revision_info(1234, 'a-revision-id')
 
623
        self.assertEqual(
 
624
            [('call', 'Branch.set_last_revision_info',
 
625
                ('branch/', 'branch token', 'repo token',
 
626
                 '1234', 'a-revision-id')),],
 
627
            client._calls)
 
628
        self.assertEqual(
 
629
            [('set_last_revision_info', 1234, 'a-revision-id')],
 
630
            real_branch.calls)
 
631
 
 
632
    def test_unexpected_error(self):
 
633
        # A response of 'NoSuchRevision' is translated into an exception.
 
634
        transport = MemoryTransport()
 
635
        transport.mkdir('branch')
 
636
        transport = transport.clone('branch')
 
637
        client = FakeClient(transport.base)
 
638
        # lock_write
 
639
        client.add_success_response('ok', 'branch token', 'repo token')
 
640
        # set_last_revision
 
641
        client.add_error_response('UnexpectedError')
 
642
        # unlock
 
643
        client.add_success_response('ok')
 
644
 
 
645
        bzrdir = RemoteBzrDir(transport, _client=False)
 
646
        branch = RemoteBranch(bzrdir, None, _client=client)
 
647
        # This is a hack to work around the problem that RemoteBranch currently
 
648
        # unnecessarily invokes _ensure_real upon a call to lock_write.
 
649
        branch._ensure_real = lambda: None
 
650
        # Lock the branch, reset the record of remote calls.
 
651
        branch.lock_write()
 
652
        client._calls = []
 
653
 
 
654
        err = self.assertRaises(
 
655
            errors.ErrorFromSmartServer,
 
656
            branch.set_last_revision_info, 123, 'revid')
 
657
        self.assertEqual(('UnexpectedError',), err.error_tuple)
 
658
        branch.unlock()
 
659
 
 
660
 
 
661
class TestBranchControlGetBranchConf(tests.TestCaseWithMemoryTransport):
 
662
    """Getting the branch configuration should use an abstract method not vfs.
 
663
    """
 
664
 
 
665
    def test_get_branch_conf(self):
 
666
        raise tests.KnownFailure('branch.conf is not retrieved by get_config_file')
 
667
        ## # We should see that branch.get_config() does a single rpc to get the
 
668
        ## # remote configuration file, abstracting away where that is stored on
 
669
        ## # the server.  However at the moment it always falls back to using the
 
670
        ## # vfs, and this would need some changes in config.py.
 
671
 
 
672
        ## # in an empty branch we decode the response properly
 
673
        ## client = FakeClient([(('ok', ), '# config file body')], self.get_url())
 
674
        ## # we need to make a real branch because the remote_branch.control_files
 
675
        ## # will trigger _ensure_real.
 
676
        ## branch = self.make_branch('quack')
 
677
        ## transport = branch.bzrdir.root_transport
 
678
        ## # we do not want bzrdir to make any remote calls
 
679
        ## bzrdir = RemoteBzrDir(transport, _client=False)
 
680
        ## branch = RemoteBranch(bzrdir, None, _client=client)
 
681
        ## config = branch.get_config()
 
682
        ## self.assertEqual(
 
683
        ##     [('call_expecting_body', 'Branch.get_config_file', ('quack/',))],
 
684
        ##     client._calls)
 
685
 
 
686
 
 
687
class TestBranchLockWrite(tests.TestCase):
 
688
 
 
689
    def test_lock_write_unlockable(self):
 
690
        transport = MemoryTransport()
 
691
        client = FakeClient(transport.base)
 
692
        client.add_error_response('UnlockableTransport')
 
693
        transport.mkdir('quack')
 
694
        transport = transport.clone('quack')
 
695
        # we do not want bzrdir to make any remote calls
 
696
        bzrdir = RemoteBzrDir(transport, _client=False)
 
697
        branch = RemoteBranch(bzrdir, None, _client=client)
 
698
        self.assertRaises(errors.UnlockableTransport, branch.lock_write)
 
699
        self.assertEqual(
 
700
            [('call', 'Branch.lock_write', ('quack/', '', ''))],
 
701
            client._calls)
 
702
 
 
703
 
 
704
class TestTransportIsReadonly(tests.TestCase):
 
705
 
 
706
    def test_true(self):
 
707
        client = FakeClient()
 
708
        client.add_success_response('yes')
 
709
        transport = RemoteTransport('bzr://example.com/', medium=False,
 
710
                                    _client=client)
 
711
        self.assertEqual(True, transport.is_readonly())
 
712
        self.assertEqual(
 
713
            [('call', 'Transport.is_readonly', ())],
 
714
            client._calls)
 
715
 
 
716
    def test_false(self):
 
717
        client = FakeClient()
 
718
        client.add_success_response('no')
 
719
        transport = RemoteTransport('bzr://example.com/', medium=False,
 
720
                                    _client=client)
 
721
        self.assertEqual(False, transport.is_readonly())
 
722
        self.assertEqual(
 
723
            [('call', 'Transport.is_readonly', ())],
 
724
            client._calls)
 
725
 
 
726
    def test_error_from_old_server(self):
 
727
        """bzr 0.15 and earlier servers don't recognise the is_readonly verb.
 
728
        
 
729
        Clients should treat it as a "no" response, because is_readonly is only
 
730
        advisory anyway (a transport could be read-write, but then the
 
731
        underlying filesystem could be readonly anyway).
 
732
        """
 
733
        client = FakeClient()
 
734
        client.add_unknown_method_response('Transport.is_readonly')
 
735
        transport = RemoteTransport('bzr://example.com/', medium=False,
 
736
                                    _client=client)
 
737
        self.assertEqual(False, transport.is_readonly())
 
738
        self.assertEqual(
 
739
            [('call', 'Transport.is_readonly', ())],
 
740
            client._calls)
 
741
 
 
742
 
 
743
class TestRemoteRepository(tests.TestCase):
 
744
    """Base for testing RemoteRepository protocol usage.
 
745
    
 
746
    These tests contain frozen requests and responses.  We want any changes to 
 
747
    what is sent or expected to be require a thoughtful update to these tests
 
748
    because they might break compatibility with different-versioned servers.
 
749
    """
 
750
 
 
751
    def setup_fake_client_and_repository(self, transport_path):
 
752
        """Create the fake client and repository for testing with.
 
753
        
 
754
        There's no real server here; we just have canned responses sent
 
755
        back one by one.
 
756
        
 
757
        :param transport_path: Path below the root of the MemoryTransport
 
758
            where the repository will be created.
 
759
        """
 
760
        transport = MemoryTransport()
 
761
        transport.mkdir(transport_path)
 
762
        client = FakeClient(transport.base)
 
763
        transport = transport.clone(transport_path)
 
764
        # we do not want bzrdir to make any remote calls
 
765
        bzrdir = RemoteBzrDir(transport, _client=False)
 
766
        repo = RemoteRepository(bzrdir, None, _client=client)
 
767
        return repo, client
 
768
 
 
769
 
 
770
class TestRepositoryGatherStats(TestRemoteRepository):
 
771
 
 
772
    def test_revid_none(self):
 
773
        # ('ok',), body with revisions and size
 
774
        transport_path = 'quack'
 
775
        repo, client = self.setup_fake_client_and_repository(transport_path)
 
776
        client.add_success_response_with_body(
 
777
            'revisions: 2\nsize: 18\n', 'ok')
 
778
        result = repo.gather_stats(None)
 
779
        self.assertEqual(
 
780
            [('call_expecting_body', 'Repository.gather_stats',
 
781
             ('quack/','','no'))],
 
782
            client._calls)
 
783
        self.assertEqual({'revisions': 2, 'size': 18}, result)
 
784
 
 
785
    def test_revid_no_committers(self):
 
786
        # ('ok',), body without committers
 
787
        body = ('firstrev: 123456.300 3600\n'
 
788
                'latestrev: 654231.400 0\n'
 
789
                'revisions: 2\n'
 
790
                'size: 18\n')
 
791
        transport_path = 'quick'
 
792
        revid = u'\xc8'.encode('utf8')
 
793
        repo, client = self.setup_fake_client_and_repository(transport_path)
 
794
        client.add_success_response_with_body(body, 'ok')
 
795
        result = repo.gather_stats(revid)
 
796
        self.assertEqual(
 
797
            [('call_expecting_body', 'Repository.gather_stats',
 
798
              ('quick/', revid, 'no'))],
 
799
            client._calls)
 
800
        self.assertEqual({'revisions': 2, 'size': 18,
 
801
                          'firstrev': (123456.300, 3600),
 
802
                          'latestrev': (654231.400, 0),},
 
803
                         result)
 
804
 
 
805
    def test_revid_with_committers(self):
 
806
        # ('ok',), body with committers
 
807
        body = ('committers: 128\n'
 
808
                'firstrev: 123456.300 3600\n'
 
809
                'latestrev: 654231.400 0\n'
 
810
                'revisions: 2\n'
 
811
                'size: 18\n')
 
812
        transport_path = 'buick'
 
813
        revid = u'\xc8'.encode('utf8')
 
814
        repo, client = self.setup_fake_client_and_repository(transport_path)
 
815
        client.add_success_response_with_body(body, 'ok')
 
816
        result = repo.gather_stats(revid, True)
 
817
        self.assertEqual(
 
818
            [('call_expecting_body', 'Repository.gather_stats',
 
819
              ('buick/', revid, 'yes'))],
 
820
            client._calls)
 
821
        self.assertEqual({'revisions': 2, 'size': 18,
 
822
                          'committers': 128,
 
823
                          'firstrev': (123456.300, 3600),
 
824
                          'latestrev': (654231.400, 0),},
 
825
                         result)
 
826
 
 
827
 
 
828
class TestRepositoryGetGraph(TestRemoteRepository):
 
829
 
 
830
    def test_get_graph(self):
 
831
        # get_graph returns a graph with the repository as the
 
832
        # parents_provider.
 
833
        transport_path = 'quack'
 
834
        repo, client = self.setup_fake_client_and_repository(transport_path)
 
835
        graph = repo.get_graph()
 
836
        self.assertEqual(graph._parents_provider, repo)
 
837
 
 
838
 
 
839
class TestRepositoryGetParentMap(TestRemoteRepository):
 
840
 
 
841
    def test_get_parent_map_caching(self):
 
842
        # get_parent_map returns from cache until unlock()
 
843
        # setup a reponse with two revisions
 
844
        r1 = u'\u0e33'.encode('utf8')
 
845
        r2 = u'\u0dab'.encode('utf8')
 
846
        lines = [' '.join([r2, r1]), r1]
 
847
        encoded_body = bz2.compress('\n'.join(lines))
 
848
 
 
849
        transport_path = 'quack'
 
850
        repo, client = self.setup_fake_client_and_repository(transport_path)
 
851
        client.add_success_response_with_body(encoded_body, 'ok')
 
852
        client.add_success_response_with_body(encoded_body, 'ok')
 
853
        repo.lock_read()
 
854
        graph = repo.get_graph()
 
855
        parents = graph.get_parent_map([r2])
 
856
        self.assertEqual({r2: (r1,)}, parents)
 
857
        # locking and unlocking deeper should not reset
 
858
        repo.lock_read()
 
859
        repo.unlock()
 
860
        parents = graph.get_parent_map([r1])
 
861
        self.assertEqual({r1: (NULL_REVISION,)}, parents)
 
862
        self.assertEqual(
 
863
            [('call_with_body_bytes_expecting_body',
 
864
              'Repository.get_parent_map', ('quack/', r2), '\n\n0')],
 
865
            client._calls)
 
866
        repo.unlock()
 
867
        # now we call again, and it should use the second response.
 
868
        repo.lock_read()
 
869
        graph = repo.get_graph()
 
870
        parents = graph.get_parent_map([r1])
 
871
        self.assertEqual({r1: (NULL_REVISION,)}, parents)
 
872
        self.assertEqual(
 
873
            [('call_with_body_bytes_expecting_body',
 
874
              'Repository.get_parent_map', ('quack/', r2), '\n\n0'),
 
875
             ('call_with_body_bytes_expecting_body',
 
876
              'Repository.get_parent_map', ('quack/', r1), '\n\n0'),
 
877
            ],
 
878
            client._calls)
 
879
        repo.unlock()
 
880
 
 
881
    def test_get_parent_map_reconnects_if_unknown_method(self):
 
882
        transport_path = 'quack'
 
883
        repo, client = self.setup_fake_client_and_repository(transport_path)
 
884
        client.add_unknown_method_response('Repository,get_parent_map')
 
885
        client.add_success_response_with_body('', 'ok')
 
886
        self.assertTrue(client._medium._remote_is_at_least_1_2)
 
887
        rev_id = 'revision-id'
 
888
        expected_deprecations = [
 
889
            'bzrlib.remote.RemoteRepository.get_revision_graph was deprecated '
 
890
            'in version 1.4.']
 
891
        parents = self.callDeprecated(
 
892
            expected_deprecations, repo.get_parent_map, [rev_id])
 
893
        self.assertEqual(
 
894
            [('call_with_body_bytes_expecting_body',
 
895
              'Repository.get_parent_map', ('quack/', rev_id), '\n\n0'),
 
896
             ('disconnect medium',),
 
897
             ('call_expecting_body', 'Repository.get_revision_graph',
 
898
              ('quack/', ''))],
 
899
            client._calls)
 
900
        # The medium is now marked as being connected to an older server
 
901
        self.assertFalse(client._medium._remote_is_at_least_1_2)
 
902
 
 
903
    def test_get_parent_map_fallback_parentless_node(self):
 
904
        """get_parent_map falls back to get_revision_graph on old servers.  The
 
905
        results from get_revision_graph are tweaked to match the get_parent_map
 
906
        API.
 
907
 
 
908
        Specifically, a {key: ()} result from get_revision_graph means "no
 
909
        parents" for that key, which in get_parent_map results should be
 
910
        represented as {key: ('null:',)}.
 
911
 
 
912
        This is the test for https://bugs.launchpad.net/bzr/+bug/214894
 
913
        """
 
914
        rev_id = 'revision-id'
 
915
        transport_path = 'quack'
 
916
        repo, client = self.setup_fake_client_and_repository(transport_path)
 
917
        client.add_success_response_with_body(rev_id, 'ok')
 
918
        client._medium._remote_is_at_least_1_2 = False
 
919
        expected_deprecations = [
 
920
            'bzrlib.remote.RemoteRepository.get_revision_graph was deprecated '
 
921
            'in version 1.4.']
 
922
        parents = self.callDeprecated(
 
923
            expected_deprecations, repo.get_parent_map, [rev_id])
 
924
        self.assertEqual(
 
925
            [('call_expecting_body', 'Repository.get_revision_graph',
 
926
             ('quack/', ''))],
 
927
            client._calls)
 
928
        self.assertEqual({rev_id: ('null:',)}, parents)
 
929
 
 
930
    def test_get_parent_map_unexpected_response(self):
 
931
        repo, client = self.setup_fake_client_and_repository('path')
 
932
        client.add_success_response('something unexpected!')
 
933
        self.assertRaises(
 
934
            errors.UnexpectedSmartServerResponse,
 
935
            repo.get_parent_map, ['a-revision-id'])
 
936
 
 
937
 
 
938
class TestRepositoryGetRevisionGraph(TestRemoteRepository):
 
939
    
 
940
    def test_null_revision(self):
 
941
        # a null revision has the predictable result {}, we should have no wire
 
942
        # traffic when calling it with this argument
 
943
        transport_path = 'empty'
 
944
        repo, client = self.setup_fake_client_and_repository(transport_path)
 
945
        client.add_success_response('notused')
 
946
        result = self.applyDeprecated(one_four, repo.get_revision_graph,
 
947
            NULL_REVISION)
 
948
        self.assertEqual([], client._calls)
 
949
        self.assertEqual({}, result)
 
950
 
 
951
    def test_none_revision(self):
 
952
        # with none we want the entire graph
 
953
        r1 = u'\u0e33'.encode('utf8')
 
954
        r2 = u'\u0dab'.encode('utf8')
 
955
        lines = [' '.join([r2, r1]), r1]
 
956
        encoded_body = '\n'.join(lines)
 
957
 
 
958
        transport_path = 'sinhala'
 
959
        repo, client = self.setup_fake_client_and_repository(transport_path)
 
960
        client.add_success_response_with_body(encoded_body, 'ok')
 
961
        result = self.applyDeprecated(one_four, repo.get_revision_graph)
 
962
        self.assertEqual(
 
963
            [('call_expecting_body', 'Repository.get_revision_graph',
 
964
             ('sinhala/', ''))],
 
965
            client._calls)
 
966
        self.assertEqual({r1: (), r2: (r1, )}, result)
 
967
 
 
968
    def test_specific_revision(self):
 
969
        # with a specific revision we want the graph for that
 
970
        # with none we want the entire graph
 
971
        r11 = u'\u0e33'.encode('utf8')
 
972
        r12 = u'\xc9'.encode('utf8')
 
973
        r2 = u'\u0dab'.encode('utf8')
 
974
        lines = [' '.join([r2, r11, r12]), r11, r12]
 
975
        encoded_body = '\n'.join(lines)
 
976
 
 
977
        transport_path = 'sinhala'
 
978
        repo, client = self.setup_fake_client_and_repository(transport_path)
 
979
        client.add_success_response_with_body(encoded_body, 'ok')
 
980
        result = self.applyDeprecated(one_four, repo.get_revision_graph, r2)
 
981
        self.assertEqual(
 
982
            [('call_expecting_body', 'Repository.get_revision_graph',
 
983
             ('sinhala/', r2))],
 
984
            client._calls)
 
985
        self.assertEqual({r11: (), r12: (), r2: (r11, r12), }, result)
 
986
 
 
987
    def test_no_such_revision(self):
 
988
        revid = '123'
 
989
        transport_path = 'sinhala'
 
990
        repo, client = self.setup_fake_client_and_repository(transport_path)
 
991
        client.add_error_response('nosuchrevision', revid)
 
992
        # also check that the right revision is reported in the error
 
993
        self.assertRaises(errors.NoSuchRevision,
 
994
            self.applyDeprecated, one_four, repo.get_revision_graph, revid)
 
995
        self.assertEqual(
 
996
            [('call_expecting_body', 'Repository.get_revision_graph',
 
997
             ('sinhala/', revid))],
 
998
            client._calls)
 
999
 
 
1000
    def test_unexpected_error(self):
 
1001
        revid = '123'
 
1002
        transport_path = 'sinhala'
 
1003
        repo, client = self.setup_fake_client_and_repository(transport_path)
 
1004
        client.add_error_response('AnUnexpectedError')
 
1005
        e = self.assertRaises(errors.ErrorFromSmartServer,
 
1006
            self.applyDeprecated, one_four, repo.get_revision_graph, revid)
 
1007
        self.assertEqual(('AnUnexpectedError',), e.error_tuple)
 
1008
 
 
1009
        
 
1010
class TestRepositoryIsShared(TestRemoteRepository):
 
1011
 
 
1012
    def test_is_shared(self):
 
1013
        # ('yes', ) for Repository.is_shared -> 'True'.
 
1014
        transport_path = 'quack'
 
1015
        repo, client = self.setup_fake_client_and_repository(transport_path)
 
1016
        client.add_success_response('yes')
 
1017
        result = repo.is_shared()
 
1018
        self.assertEqual(
 
1019
            [('call', 'Repository.is_shared', ('quack/',))],
 
1020
            client._calls)
 
1021
        self.assertEqual(True, result)
 
1022
 
 
1023
    def test_is_not_shared(self):
 
1024
        # ('no', ) for Repository.is_shared -> 'False'.
 
1025
        transport_path = 'qwack'
 
1026
        repo, client = self.setup_fake_client_and_repository(transport_path)
 
1027
        client.add_success_response('no')
 
1028
        result = repo.is_shared()
 
1029
        self.assertEqual(
 
1030
            [('call', 'Repository.is_shared', ('qwack/',))],
 
1031
            client._calls)
 
1032
        self.assertEqual(False, result)
 
1033
 
 
1034
 
 
1035
class TestRepositoryLockWrite(TestRemoteRepository):
 
1036
 
 
1037
    def test_lock_write(self):
 
1038
        transport_path = 'quack'
 
1039
        repo, client = self.setup_fake_client_and_repository(transport_path)
 
1040
        client.add_success_response('ok', 'a token')
 
1041
        result = repo.lock_write()
 
1042
        self.assertEqual(
 
1043
            [('call', 'Repository.lock_write', ('quack/', ''))],
 
1044
            client._calls)
 
1045
        self.assertEqual('a token', result)
 
1046
 
 
1047
    def test_lock_write_already_locked(self):
 
1048
        transport_path = 'quack'
 
1049
        repo, client = self.setup_fake_client_and_repository(transport_path)
 
1050
        client.add_error_response('LockContention')
 
1051
        self.assertRaises(errors.LockContention, repo.lock_write)
 
1052
        self.assertEqual(
 
1053
            [('call', 'Repository.lock_write', ('quack/', ''))],
 
1054
            client._calls)
 
1055
 
 
1056
    def test_lock_write_unlockable(self):
 
1057
        transport_path = 'quack'
 
1058
        repo, client = self.setup_fake_client_and_repository(transport_path)
 
1059
        client.add_error_response('UnlockableTransport')
 
1060
        self.assertRaises(errors.UnlockableTransport, repo.lock_write)
 
1061
        self.assertEqual(
 
1062
            [('call', 'Repository.lock_write', ('quack/', ''))],
 
1063
            client._calls)
 
1064
 
 
1065
 
 
1066
class TestRepositoryUnlock(TestRemoteRepository):
 
1067
 
 
1068
    def test_unlock(self):
 
1069
        transport_path = 'quack'
 
1070
        repo, client = self.setup_fake_client_and_repository(transport_path)
 
1071
        client.add_success_response('ok', 'a token')
 
1072
        client.add_success_response('ok')
 
1073
        repo.lock_write()
 
1074
        repo.unlock()
 
1075
        self.assertEqual(
 
1076
            [('call', 'Repository.lock_write', ('quack/', '')),
 
1077
             ('call', 'Repository.unlock', ('quack/', 'a token'))],
 
1078
            client._calls)
 
1079
 
 
1080
    def test_unlock_wrong_token(self):
 
1081
        # If somehow the token is wrong, unlock will raise TokenMismatch.
 
1082
        transport_path = 'quack'
 
1083
        repo, client = self.setup_fake_client_and_repository(transport_path)
 
1084
        client.add_success_response('ok', 'a token')
 
1085
        client.add_error_response('TokenMismatch')
 
1086
        repo.lock_write()
 
1087
        self.assertRaises(errors.TokenMismatch, repo.unlock)
 
1088
 
 
1089
 
 
1090
class TestRepositoryHasRevision(TestRemoteRepository):
 
1091
 
 
1092
    def test_none(self):
 
1093
        # repo.has_revision(None) should not cause any traffic.
 
1094
        transport_path = 'quack'
 
1095
        repo, client = self.setup_fake_client_and_repository(transport_path)
 
1096
 
 
1097
        # The null revision is always there, so has_revision(None) == True.
 
1098
        self.assertEqual(True, repo.has_revision(NULL_REVISION))
 
1099
 
 
1100
        # The remote repo shouldn't be accessed.
 
1101
        self.assertEqual([], client._calls)
 
1102
 
 
1103
 
 
1104
class TestRepositoryTarball(TestRemoteRepository):
 
1105
 
 
1106
    # This is a canned tarball reponse we can validate against
 
1107
    tarball_content = (
 
1108
        'QlpoOTFBWSZTWdGkj3wAAWF/k8aQACBIB//A9+8cIX/v33AACEAYABAECEACNz'
 
1109
        'JqsgJJFPTSnk1A3qh6mTQAAAANPUHkagkSTEkaA09QaNAAAGgAAAcwCYCZGAEY'
 
1110
        'mJhMJghpiaYBUkKammSHqNMZQ0NABkNAeo0AGneAevnlwQoGzEzNVzaYxp/1Uk'
 
1111
        'xXzA1CQX0BJMZZLcPBrluJir5SQyijWHYZ6ZUtVqqlYDdB2QoCwa9GyWwGYDMA'
 
1112
        'OQYhkpLt/OKFnnlT8E0PmO8+ZNSo2WWqeCzGB5fBXZ3IvV7uNJVE7DYnWj6qwB'
 
1113
        'k5DJDIrQ5OQHHIjkS9KqwG3mc3t+F1+iujb89ufyBNIKCgeZBWrl5cXxbMGoMs'
 
1114
        'c9JuUkg5YsiVcaZJurc6KLi6yKOkgCUOlIlOpOoXyrTJjK8ZgbklReDdwGmFgt'
 
1115
        'dkVsAIslSVCd4AtACSLbyhLHryfb14PKegrVDba+U8OL6KQtzdM5HLjAc8/p6n'
 
1116
        '0lgaWU8skgO7xupPTkyuwheSckejFLK5T4ZOo0Gda9viaIhpD1Qn7JqqlKAJqC'
 
1117
        'QplPKp2nqBWAfwBGaOwVrz3y1T+UZZNismXHsb2Jq18T+VaD9k4P8DqE3g70qV'
 
1118
        'JLurpnDI6VS5oqDDPVbtVjMxMxMg4rzQVipn2Bv1fVNK0iq3Gl0hhnnHKm/egy'
 
1119
        'nWQ7QH/F3JFOFCQ0aSPfA='
 
1120
        ).decode('base64')
 
1121
 
 
1122
    def test_repository_tarball(self):
 
1123
        # Test that Repository.tarball generates the right operations
 
1124
        transport_path = 'repo'
 
1125
        expected_calls = [('call_expecting_body', 'Repository.tarball',
 
1126
                           ('repo/', 'bz2',),),
 
1127
            ]
 
1128
        repo, client = self.setup_fake_client_and_repository(transport_path)
 
1129
        client.add_success_response_with_body(self.tarball_content, 'ok')
 
1130
        # Now actually ask for the tarball
 
1131
        tarball_file = repo._get_tarball('bz2')
 
1132
        try:
 
1133
            self.assertEqual(expected_calls, client._calls)
 
1134
            self.assertEqual(self.tarball_content, tarball_file.read())
 
1135
        finally:
 
1136
            tarball_file.close()
 
1137
 
 
1138
 
 
1139
class TestRemoteRepositoryCopyContent(tests.TestCaseWithTransport):
 
1140
    """RemoteRepository.copy_content_into optimizations"""
 
1141
 
 
1142
    def test_copy_content_remote_to_local(self):
 
1143
        self.transport_server = server.SmartTCPServer_for_testing
 
1144
        src_repo = self.make_repository('repo1')
 
1145
        src_repo = repository.Repository.open(self.get_url('repo1'))
 
1146
        # At the moment the tarball-based copy_content_into can't write back
 
1147
        # into a smart server.  It would be good if it could upload the
 
1148
        # tarball; once that works we'd have to create repositories of
 
1149
        # different formats. -- mbp 20070410
 
1150
        dest_url = self.get_vfs_only_url('repo2')
 
1151
        dest_bzrdir = BzrDir.create(dest_url)
 
1152
        dest_repo = dest_bzrdir.create_repository()
 
1153
        self.assertFalse(isinstance(dest_repo, RemoteRepository))
 
1154
        self.assertTrue(isinstance(src_repo, RemoteRepository))
 
1155
        src_repo.copy_content_into(dest_repo)
 
1156
 
 
1157
 
 
1158
class TestRepositoryStreamKnitData(TestRemoteRepository):
 
1159
 
 
1160
    def make_pack_file(self, records):
 
1161
        pack_file = StringIO()
 
1162
        pack_writer = pack.ContainerWriter(pack_file.write)
 
1163
        pack_writer.begin()
 
1164
        for bytes, names in records:
 
1165
            pack_writer.add_bytes_record(bytes, names)
 
1166
        pack_writer.end()
 
1167
        pack_file.seek(0)
 
1168
        return pack_file
 
1169
 
 
1170
    def make_pack_stream(self, records):
 
1171
        pack_serialiser = pack.ContainerSerialiser()
 
1172
        yield pack_serialiser.begin()
 
1173
        for bytes, names in records:
 
1174
            yield pack_serialiser.bytes_record(bytes, names)
 
1175
        yield pack_serialiser.end()
 
1176
 
 
1177
    def test_bad_pack_from_server(self):
 
1178
        """A response with invalid data (e.g. it has a record with multiple
 
1179
        names) triggers an exception.
 
1180
        
 
1181
        Not all possible errors will be caught at this stage, but obviously
 
1182
        malformed data should be.
 
1183
        """
 
1184
        record = ('bytes', [('name1',), ('name2',)])
 
1185
        pack_stream = self.make_pack_stream([record])
 
1186
        transport_path = 'quack'
 
1187
        repo, client = self.setup_fake_client_and_repository(transport_path)
 
1188
        client.add_success_response_with_body(pack_stream, 'ok')
 
1189
        search = graph.SearchResult(set(['revid']), set(), 1, set(['revid']))
 
1190
        stream = repo.get_data_stream_for_search(search)
 
1191
        self.assertRaises(errors.SmartProtocolError, list, stream)
 
1192
    
 
1193
    def test_backwards_compatibility(self):
 
1194
        """If the server doesn't recognise this request, fallback to VFS."""
 
1195
        repo, client = self.setup_fake_client_and_repository('path')
 
1196
        client.add_unknown_method_response(
 
1197
            'Repository.stream_revisions_chunked')
 
1198
        self.mock_called = False
 
1199
        repo._real_repository = MockRealRepository(self)
 
1200
        search = graph.SearchResult(set(['revid']), set(), 1, set(['revid']))
 
1201
        repo.get_data_stream_for_search(search)
 
1202
        self.assertTrue(self.mock_called)
 
1203
        self.failIf(client.expecting_body,
 
1204
            "The protocol has been left in an unclean state that will cause "
 
1205
            "TooManyConcurrentRequests errors.")
 
1206
 
 
1207
 
 
1208
class MockRealRepository(object):
 
1209
    """Helper class for TestRepositoryStreamKnitData.test_unknown_method."""
 
1210
 
 
1211
    def __init__(self, test):
 
1212
        self.test = test
 
1213
 
 
1214
    def get_data_stream_for_search(self, search):
 
1215
        self.test.assertEqual(set(['revid']), search.get_keys())
 
1216
        self.test.mock_called = True
 
1217
 
 
1218