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Viewing changes to bzrlib/tests/test_transport.py

  • Committer: Martin Pool
  • Date: 2005-07-18 11:23:40 UTC
  • Revision ID: mbp@sourcefrog.net-20050718112340-4ffbfa3624bb6ef3
- weavebench should set random seed to make it reproducible

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1
 
# Copyright (C) 2004, 2005, 2006 by 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
 
 
18
 
import os
19
 
import sys
20
 
import stat
21
 
from cStringIO import StringIO
22
 
 
23
 
import bzrlib
24
 
from bzrlib.errors import (NoSuchFile, FileExists,
25
 
                           TransportNotPossible,
26
 
                           ConnectionError,
27
 
                           DependencyNotPresent,
28
 
                           UnsupportedProtocol,
29
 
                           )
30
 
from bzrlib.tests import TestCase, TestCaseInTempDir
31
 
from bzrlib.transport import (_get_protocol_handlers,
32
 
                              _get_transport_modules,
33
 
                              get_transport,
34
 
                              register_lazy_transport,
35
 
                              _set_protocol_handlers,
36
 
                              Transport,
37
 
                              )
38
 
from bzrlib.transport.memory import MemoryTransport
39
 
from bzrlib.transport.local import LocalTransport
40
 
 
41
 
 
42
 
class TestTransport(TestCase):
43
 
    """Test the non transport-concrete class functionality."""
44
 
 
45
 
    def test__get_set_protocol_handlers(self):
46
 
        handlers = _get_protocol_handlers()
47
 
        self.assertNotEqual({}, handlers)
48
 
        try:
49
 
            _set_protocol_handlers({})
50
 
            self.assertEqual({}, _get_protocol_handlers())
51
 
        finally:
52
 
            _set_protocol_handlers(handlers)
53
 
 
54
 
    def test_get_transport_modules(self):
55
 
        handlers = _get_protocol_handlers()
56
 
        class SampleHandler(object):
57
 
            """I exist, isnt that enough?"""
58
 
        try:
59
 
            my_handlers = {}
60
 
            _set_protocol_handlers(my_handlers)
61
 
            register_lazy_transport('foo', 'bzrlib.tests.test_transport', 'TestTransport.SampleHandler')
62
 
            register_lazy_transport('bar', 'bzrlib.tests.test_transport', 'TestTransport.SampleHandler')
63
 
            self.assertEqual([SampleHandler.__module__],
64
 
                             _get_transport_modules())
65
 
        finally:
66
 
            _set_protocol_handlers(handlers)
67
 
 
68
 
    def test_transport_dependency(self):
69
 
        """Transport with missing dependency causes no error"""
70
 
        saved_handlers = _get_protocol_handlers()
71
 
        try:
72
 
            register_lazy_transport('foo', 'bzrlib.tests.test_transport',
73
 
                    'BadTransportHandler')
74
 
            try:
75
 
                get_transport('foo://fooserver/foo')
76
 
            except UnsupportedProtocol, e:
77
 
                e_str = str(e)
78
 
                self.assertEquals('Unsupported protocol'
79
 
                                  ' for url "foo://fooserver/foo":'
80
 
                                  ' Unable to import library "some_lib":'
81
 
                                  ' testing missing dependency', str(e))
82
 
            else:
83
 
                self.fail('Did not raise UnsupportedProtocol')
84
 
        finally:
85
 
            # restore original values
86
 
            _set_protocol_handlers(saved_handlers)
87
 
            
88
 
    def test_transport_fallback(self):
89
 
        """Transport with missing dependency causes no error"""
90
 
        saved_handlers = _get_protocol_handlers()
91
 
        try:
92
 
            _set_protocol_handlers({})
93
 
            register_lazy_transport('foo', 'bzrlib.tests.test_transport',
94
 
                    'BackupTransportHandler')
95
 
            register_lazy_transport('foo', 'bzrlib.tests.test_transport',
96
 
                    'BadTransportHandler')
97
 
            t = get_transport('foo://fooserver/foo')
98
 
            self.assertTrue(isinstance(t, BackupTransportHandler))
99
 
        finally:
100
 
            _set_protocol_handlers(saved_handlers)
101
 
            
102
 
 
103
 
class TestMemoryTransport(TestCase):
104
 
 
105
 
    def test_get_transport(self):
106
 
        MemoryTransport()
107
 
 
108
 
    def test_clone(self):
109
 
        transport = MemoryTransport()
110
 
        self.assertTrue(isinstance(transport, MemoryTransport))
111
 
 
112
 
    def test_abspath(self):
113
 
        transport = MemoryTransport()
114
 
        self.assertEqual("memory:///relpath", transport.abspath('relpath'))
115
 
 
116
 
    def test_relpath(self):
117
 
        transport = MemoryTransport()
118
 
 
119
 
    def test_append_and_get(self):
120
 
        transport = MemoryTransport()
121
 
        transport.append('path', StringIO('content'))
122
 
        self.assertEqual(transport.get('path').read(), 'content')
123
 
        transport.append('path', StringIO('content'))
124
 
        self.assertEqual(transport.get('path').read(), 'contentcontent')
125
 
 
126
 
    def test_put_and_get(self):
127
 
        transport = MemoryTransport()
128
 
        transport.put('path', StringIO('content'))
129
 
        self.assertEqual(transport.get('path').read(), 'content')
130
 
        transport.put('path', StringIO('content'))
131
 
        self.assertEqual(transport.get('path').read(), 'content')
132
 
 
133
 
    def test_append_without_dir_fails(self):
134
 
        transport = MemoryTransport()
135
 
        self.assertRaises(NoSuchFile,
136
 
                          transport.append, 'dir/path', StringIO('content'))
137
 
 
138
 
    def test_put_without_dir_fails(self):
139
 
        transport = MemoryTransport()
140
 
        self.assertRaises(NoSuchFile,
141
 
                          transport.put, 'dir/path', StringIO('content'))
142
 
 
143
 
    def test_get_missing(self):
144
 
        transport = MemoryTransport()
145
 
        self.assertRaises(NoSuchFile, transport.get, 'foo')
146
 
 
147
 
    def test_has_missing(self):
148
 
        transport = MemoryTransport()
149
 
        self.assertEquals(False, transport.has('foo'))
150
 
 
151
 
    def test_has_present(self):
152
 
        transport = MemoryTransport()
153
 
        transport.append('foo', StringIO('content'))
154
 
        self.assertEquals(True, transport.has('foo'))
155
 
 
156
 
    def test_mkdir(self):
157
 
        transport = MemoryTransport()
158
 
        transport.mkdir('dir')
159
 
        transport.append('dir/path', StringIO('content'))
160
 
        self.assertEqual(transport.get('dir/path').read(), 'content')
161
 
 
162
 
    def test_mkdir_missing_parent(self):
163
 
        transport = MemoryTransport()
164
 
        self.assertRaises(NoSuchFile,
165
 
                          transport.mkdir, 'dir/dir')
166
 
 
167
 
    def test_mkdir_twice(self):
168
 
        transport = MemoryTransport()
169
 
        transport.mkdir('dir')
170
 
        self.assertRaises(FileExists, transport.mkdir, 'dir')
171
 
 
172
 
    def test_parameters(self):
173
 
        transport = MemoryTransport()
174
 
        self.assertEqual(True, transport.listable())
175
 
        self.assertEqual(False, transport.should_cache())
176
 
        self.assertEqual(False, transport.is_readonly())
177
 
 
178
 
    def test_iter_files_recursive(self):
179
 
        transport = MemoryTransport()
180
 
        transport.mkdir('dir')
181
 
        transport.put('dir/foo', StringIO('content'))
182
 
        transport.put('dir/bar', StringIO('content'))
183
 
        transport.put('bar', StringIO('content'))
184
 
        paths = set(transport.iter_files_recursive())
185
 
        self.assertEqual(set(['dir/foo', 'dir/bar', 'bar']), paths)
186
 
 
187
 
    def test_stat(self):
188
 
        transport = MemoryTransport()
189
 
        transport.put('foo', StringIO('content'))
190
 
        transport.put('bar', StringIO('phowar'))
191
 
        self.assertEqual(7, transport.stat('foo').st_size)
192
 
        self.assertEqual(6, transport.stat('bar').st_size)
193
 
 
194
 
        
195
 
class ReadonlyDecoratorTransportTest(TestCase):
196
 
    """Readonly decoration specific tests."""
197
 
 
198
 
    def test_local_parameters(self):
199
 
        import bzrlib.transport.readonly as readonly
200
 
        # connect to . in readonly mode
201
 
        transport = readonly.ReadonlyTransportDecorator('readonly+.')
202
 
        self.assertEqual(True, transport.listable())
203
 
        self.assertEqual(False, transport.should_cache())
204
 
        self.assertEqual(True, transport.is_readonly())
205
 
 
206
 
    def test_http_parameters(self):
207
 
        import bzrlib.transport.readonly as readonly
208
 
        from bzrlib.transport.http import HttpServer
209
 
        # connect to . via http which is not listable
210
 
        server = HttpServer()
211
 
        server.setUp()
212
 
        try:
213
 
            transport = get_transport('readonly+' + server.get_url())
214
 
            self.failUnless(isinstance(transport,
215
 
                                       readonly.ReadonlyTransportDecorator))
216
 
            self.assertEqual(False, transport.listable())
217
 
            self.assertEqual(True, transport.should_cache())
218
 
            self.assertEqual(True, transport.is_readonly())
219
 
        finally:
220
 
            server.tearDown()
221
 
 
222
 
 
223
 
class FakeNFSDecoratorTests(TestCaseInTempDir):
224
 
    """NFS decorator specific tests."""
225
 
 
226
 
    def get_nfs_transport(self, url):
227
 
        import bzrlib.transport.fakenfs as fakenfs
228
 
        # connect to url with nfs decoration
229
 
        return fakenfs.FakeNFSTransportDecorator('fakenfs+' + url)
230
 
 
231
 
    def test_local_parameters(self):
232
 
        # the listable, should_cache and is_readonly parameters
233
 
        # are not changed by the fakenfs decorator
234
 
        transport = self.get_nfs_transport('.')
235
 
        self.assertEqual(True, transport.listable())
236
 
        self.assertEqual(False, transport.should_cache())
237
 
        self.assertEqual(False, transport.is_readonly())
238
 
 
239
 
    def test_http_parameters(self):
240
 
        # the listable, should_cache and is_readonly parameters
241
 
        # are not changed by the fakenfs decorator
242
 
        from bzrlib.transport.http import HttpServer
243
 
        # connect to . via http which is not listable
244
 
        server = HttpServer()
245
 
        server.setUp()
246
 
        try:
247
 
            transport = self.get_nfs_transport(server.get_url())
248
 
            self.assertIsInstance(
249
 
                transport, bzrlib.transport.fakenfs.FakeNFSTransportDecorator)
250
 
            self.assertEqual(False, transport.listable())
251
 
            self.assertEqual(True, transport.should_cache())
252
 
            self.assertEqual(True, transport.is_readonly())
253
 
        finally:
254
 
            server.tearDown()
255
 
 
256
 
    def test_fakenfs_server_default(self):
257
 
        # a FakeNFSServer() should bring up a local relpath server for itself
258
 
        import bzrlib.transport.fakenfs as fakenfs
259
 
        server = fakenfs.FakeNFSServer()
260
 
        server.setUp()
261
 
        try:
262
 
            # the server should be a relpath localhost server
263
 
            self.assertEqual(server.get_url(), 'fakenfs+.')
264
 
            # and we should be able to get a transport for it
265
 
            transport = get_transport(server.get_url())
266
 
            # which must be a FakeNFSTransportDecorator instance.
267
 
            self.assertIsInstance(
268
 
                transport, fakenfs.FakeNFSTransportDecorator)
269
 
        finally:
270
 
            server.tearDown()
271
 
 
272
 
    def test_fakenfs_rename_semantics(self):
273
 
        # a FakeNFS transport must mangle the way rename errors occur to
274
 
        # look like NFS problems.
275
 
        transport = self.get_nfs_transport('.')
276
 
        self.build_tree(['from/', 'from/foo', 'to/', 'to/bar'],
277
 
                        transport=transport)
278
 
        self.assertRaises(bzrlib.errors.ResourceBusy,
279
 
                          transport.rename, 'from', 'to')
280
 
 
281
 
 
282
 
class FakeVFATDecoratorTests(TestCaseInTempDir):
283
 
    """Tests for simulation of VFAT restrictions"""
284
 
 
285
 
    def get_vfat_transport(self, url):
286
 
        """Return vfat-backed transport for test directory"""
287
 
        from bzrlib.transport.fakevfat import FakeVFATTransportDecorator
288
 
        return FakeVFATTransportDecorator('vfat+' + url)
289
 
 
290
 
    def test_transport_creation(self):
291
 
        from bzrlib.transport.fakevfat import FakeVFATTransportDecorator
292
 
        transport = self.get_vfat_transport('.')
293
 
        self.assertIsInstance(transport, FakeVFATTransportDecorator)
294
 
 
295
 
    def test_transport_mkdir(self):
296
 
        transport = self.get_vfat_transport('.')
297
 
        transport.mkdir('HELLO')
298
 
        self.assertTrue(transport.has('hello'))
299
 
        self.assertTrue(transport.has('Hello'))
300
 
 
301
 
    def test_forbidden_chars(self):
302
 
        transport = self.get_vfat_transport('.')
303
 
        self.assertRaises(ValueError, transport.has, "<NU>")
304
 
 
305
 
 
306
 
class BadTransportHandler(Transport):
307
 
    def __init__(self, base_url):
308
 
        raise DependencyNotPresent('some_lib', 'testing missing dependency')
309
 
 
310
 
 
311
 
class BackupTransportHandler(Transport):
312
 
    """Test transport that works as a backup for the BadTransportHandler"""
313
 
    pass