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Viewing changes to bzrlib/tests/test_selftest.py

  • Committer: Canonical.com Patch Queue Manager
  • Date: 2011-04-29 11:54:29 UTC
  • mfrom: (5813.2.1 integration)
  • Revision ID: pqm@pqm.ubuntu.com-20110429115429-bi5nv4kqmyrbtzx0
(jameinel) Skip a test that called os.utime(dir) if the filesystem doesn't
 support it. (John A Meinel)

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1
# Copyright (C) 2005-2011 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
16
 
 
17
"""Tests for the test framework."""
 
18
 
 
19
from cStringIO import StringIO
 
20
import doctest
 
21
import os
 
22
import signal
 
23
import sys
 
24
import threading
 
25
import time
 
26
import unittest
 
27
import warnings
 
28
 
 
29
from testtools import (
 
30
    ExtendedToOriginalDecorator,
 
31
    MultiTestResult,
 
32
    )
 
33
from testtools.content import Content
 
34
from testtools.content_type import ContentType
 
35
from testtools.matchers import (
 
36
    DocTestMatches,
 
37
    Equals,
 
38
    )
 
39
import testtools.tests.helpers
 
40
 
 
41
import bzrlib
 
42
from bzrlib import (
 
43
    branchbuilder,
 
44
    bzrdir,
 
45
    errors,
 
46
    lockdir,
 
47
    memorytree,
 
48
    osutils,
 
49
    remote,
 
50
    repository,
 
51
    symbol_versioning,
 
52
    tests,
 
53
    transport,
 
54
    workingtree,
 
55
    )
 
56
from bzrlib.repofmt import (
 
57
    groupcompress_repo,
 
58
    )
 
59
from bzrlib.symbol_versioning import (
 
60
    deprecated_function,
 
61
    deprecated_in,
 
62
    deprecated_method,
 
63
    )
 
64
from bzrlib.tests import (
 
65
    features,
 
66
    test_lsprof,
 
67
    test_server,
 
68
    TestUtil,
 
69
    )
 
70
from bzrlib.trace import note, mutter
 
71
from bzrlib.transport import memory
 
72
 
 
73
 
 
74
def _test_ids(test_suite):
 
75
    """Get the ids for the tests in a test suite."""
 
76
    return [t.id() for t in tests.iter_suite_tests(test_suite)]
 
77
 
 
78
 
 
79
class MetaTestLog(tests.TestCase):
 
80
 
 
81
    def test_logging(self):
 
82
        """Test logs are captured when a test fails."""
 
83
        self.log('a test message')
 
84
        details = self.getDetails()
 
85
        log = details['log']
 
86
        self.assertThat(log.content_type, Equals(ContentType(
 
87
            "text", "plain", {"charset": "utf8"})))
 
88
        self.assertThat(u"".join(log.iter_text()), Equals(self.get_log()))
 
89
        self.assertThat(self.get_log(),
 
90
            DocTestMatches(u"...a test message\n", doctest.ELLIPSIS))
 
91
 
 
92
 
 
93
class TestUnicodeFilename(tests.TestCase):
 
94
 
 
95
    def test_probe_passes(self):
 
96
        """UnicodeFilename._probe passes."""
 
97
        # We can't test much more than that because the behaviour depends
 
98
        # on the platform.
 
99
        tests.UnicodeFilename._probe()
 
100
 
 
101
 
 
102
class TestTreeShape(tests.TestCaseInTempDir):
 
103
 
 
104
    def test_unicode_paths(self):
 
105
        self.requireFeature(tests.UnicodeFilename)
 
106
 
 
107
        filename = u'hell\u00d8'
 
108
        self.build_tree_contents([(filename, 'contents of hello')])
 
109
        self.assertPathExists(filename)
 
110
 
 
111
 
 
112
class TestClassesAvailable(tests.TestCase):
 
113
    """As a convenience we expose Test* classes from bzrlib.tests"""
 
114
 
 
115
    def test_test_case(self):
 
116
        from bzrlib.tests import TestCase
 
117
 
 
118
    def test_test_loader(self):
 
119
        from bzrlib.tests import TestLoader
 
120
 
 
121
    def test_test_suite(self):
 
122
        from bzrlib.tests import TestSuite
 
123
 
 
124
 
 
125
class TestTransportScenarios(tests.TestCase):
 
126
    """A group of tests that test the transport implementation adaption core.
 
127
 
 
128
    This is a meta test that the tests are applied to all available
 
129
    transports.
 
130
 
 
131
    This will be generalised in the future which is why it is in this
 
132
    test file even though it is specific to transport tests at the moment.
 
133
    """
 
134
 
 
135
    def test_get_transport_permutations(self):
 
136
        # this checks that get_test_permutations defined by the module is
 
137
        # called by the get_transport_test_permutations function.
 
138
        class MockModule(object):
 
139
            def get_test_permutations(self):
 
140
                return sample_permutation
 
141
        sample_permutation = [(1,2), (3,4)]
 
142
        from bzrlib.tests.per_transport import get_transport_test_permutations
 
143
        self.assertEqual(sample_permutation,
 
144
                         get_transport_test_permutations(MockModule()))
 
145
 
 
146
    def test_scenarios_include_all_modules(self):
 
147
        # this checks that the scenario generator returns as many permutations
 
148
        # as there are in all the registered transport modules - we assume if
 
149
        # this matches its probably doing the right thing especially in
 
150
        # combination with the tests for setting the right classes below.
 
151
        from bzrlib.tests.per_transport import transport_test_permutations
 
152
        from bzrlib.transport import _get_transport_modules
 
153
        modules = _get_transport_modules()
 
154
        permutation_count = 0
 
155
        for module in modules:
 
156
            try:
 
157
                permutation_count += len(reduce(getattr,
 
158
                    (module + ".get_test_permutations").split('.')[1:],
 
159
                     __import__(module))())
 
160
            except errors.DependencyNotPresent:
 
161
                pass
 
162
        scenarios = transport_test_permutations()
 
163
        self.assertEqual(permutation_count, len(scenarios))
 
164
 
 
165
    def test_scenarios_include_transport_class(self):
 
166
        # This test used to know about all the possible transports and the
 
167
        # order they were returned but that seems overly brittle (mbp
 
168
        # 20060307)
 
169
        from bzrlib.tests.per_transport import transport_test_permutations
 
170
        scenarios = transport_test_permutations()
 
171
        # there are at least that many builtin transports
 
172
        self.assertTrue(len(scenarios) > 6)
 
173
        one_scenario = scenarios[0]
 
174
        self.assertIsInstance(one_scenario[0], str)
 
175
        self.assertTrue(issubclass(one_scenario[1]["transport_class"],
 
176
                                   bzrlib.transport.Transport))
 
177
        self.assertTrue(issubclass(one_scenario[1]["transport_server"],
 
178
                                   bzrlib.transport.Server))
 
179
 
 
180
 
 
181
class TestBranchScenarios(tests.TestCase):
 
182
 
 
183
    def test_scenarios(self):
 
184
        # check that constructor parameters are passed through to the adapted
 
185
        # test.
 
186
        from bzrlib.tests.per_branch import make_scenarios
 
187
        server1 = "a"
 
188
        server2 = "b"
 
189
        formats = [("c", "C"), ("d", "D")]
 
190
        scenarios = make_scenarios(server1, server2, formats)
 
191
        self.assertEqual(2, len(scenarios))
 
192
        self.assertEqual([
 
193
            ('str',
 
194
             {'branch_format': 'c',
 
195
              'bzrdir_format': 'C',
 
196
              'transport_readonly_server': 'b',
 
197
              'transport_server': 'a'}),
 
198
            ('str',
 
199
             {'branch_format': 'd',
 
200
              'bzrdir_format': 'D',
 
201
              'transport_readonly_server': 'b',
 
202
              'transport_server': 'a'})],
 
203
            scenarios)
 
204
 
 
205
 
 
206
class TestBzrDirScenarios(tests.TestCase):
 
207
 
 
208
    def test_scenarios(self):
 
209
        # check that constructor parameters are passed through to the adapted
 
210
        # test.
 
211
        from bzrlib.tests.per_controldir import make_scenarios
 
212
        vfs_factory = "v"
 
213
        server1 = "a"
 
214
        server2 = "b"
 
215
        formats = ["c", "d"]
 
216
        scenarios = make_scenarios(vfs_factory, server1, server2, formats)
 
217
        self.assertEqual([
 
218
            ('str',
 
219
             {'bzrdir_format': 'c',
 
220
              'transport_readonly_server': 'b',
 
221
              'transport_server': 'a',
 
222
              'vfs_transport_factory': 'v'}),
 
223
            ('str',
 
224
             {'bzrdir_format': 'd',
 
225
              'transport_readonly_server': 'b',
 
226
              'transport_server': 'a',
 
227
              'vfs_transport_factory': 'v'})],
 
228
            scenarios)
 
229
 
 
230
 
 
231
class TestRepositoryScenarios(tests.TestCase):
 
232
 
 
233
    def test_formats_to_scenarios(self):
 
234
        from bzrlib.tests.per_repository import formats_to_scenarios
 
235
        formats = [("(c)", remote.RemoteRepositoryFormat()),
 
236
                   ("(d)", repository.format_registry.get(
 
237
                    'Bazaar repository format 2a (needs bzr 1.16 or later)\n'))]
 
238
        no_vfs_scenarios = formats_to_scenarios(formats, "server", "readonly",
 
239
            None)
 
240
        vfs_scenarios = formats_to_scenarios(formats, "server", "readonly",
 
241
            vfs_transport_factory="vfs")
 
242
        # no_vfs generate scenarios without vfs_transport_factory
 
243
        expected = [
 
244
            ('RemoteRepositoryFormat(c)',
 
245
             {'bzrdir_format': remote.RemoteBzrDirFormat(),
 
246
              'repository_format': remote.RemoteRepositoryFormat(),
 
247
              'transport_readonly_server': 'readonly',
 
248
              'transport_server': 'server'}),
 
249
            ('RepositoryFormat2a(d)',
 
250
             {'bzrdir_format': bzrdir.BzrDirMetaFormat1(),
 
251
              'repository_format': groupcompress_repo.RepositoryFormat2a(),
 
252
              'transport_readonly_server': 'readonly',
 
253
              'transport_server': 'server'})]
 
254
        self.assertEqual(expected, no_vfs_scenarios)
 
255
        self.assertEqual([
 
256
            ('RemoteRepositoryFormat(c)',
 
257
             {'bzrdir_format': remote.RemoteBzrDirFormat(),
 
258
              'repository_format': remote.RemoteRepositoryFormat(),
 
259
              'transport_readonly_server': 'readonly',
 
260
              'transport_server': 'server',
 
261
              'vfs_transport_factory': 'vfs'}),
 
262
            ('RepositoryFormat2a(d)',
 
263
             {'bzrdir_format': bzrdir.BzrDirMetaFormat1(),
 
264
              'repository_format': groupcompress_repo.RepositoryFormat2a(),
 
265
              'transport_readonly_server': 'readonly',
 
266
              'transport_server': 'server',
 
267
              'vfs_transport_factory': 'vfs'})],
 
268
            vfs_scenarios)
 
269
 
 
270
 
 
271
class TestTestScenarioApplication(tests.TestCase):
 
272
    """Tests for the test adaption facilities."""
 
273
 
 
274
    def test_apply_scenario(self):
 
275
        from bzrlib.tests import apply_scenario
 
276
        input_test = TestTestScenarioApplication("test_apply_scenario")
 
277
        # setup two adapted tests
 
278
        adapted_test1 = apply_scenario(input_test,
 
279
            ("new id",
 
280
            {"bzrdir_format":"bzr_format",
 
281
             "repository_format":"repo_fmt",
 
282
             "transport_server":"transport_server",
 
283
             "transport_readonly_server":"readonly-server"}))
 
284
        adapted_test2 = apply_scenario(input_test,
 
285
            ("new id 2", {"bzrdir_format":None}))
 
286
        # input_test should have been altered.
 
287
        self.assertRaises(AttributeError, getattr, input_test, "bzrdir_format")
 
288
        # the new tests are mutually incompatible, ensuring it has
 
289
        # made new ones, and unspecified elements in the scenario
 
290
        # should not have been altered.
 
291
        self.assertEqual("bzr_format", adapted_test1.bzrdir_format)
 
292
        self.assertEqual("repo_fmt", adapted_test1.repository_format)
 
293
        self.assertEqual("transport_server", adapted_test1.transport_server)
 
294
        self.assertEqual("readonly-server",
 
295
            adapted_test1.transport_readonly_server)
 
296
        self.assertEqual(
 
297
            "bzrlib.tests.test_selftest.TestTestScenarioApplication."
 
298
            "test_apply_scenario(new id)",
 
299
            adapted_test1.id())
 
300
        self.assertEqual(None, adapted_test2.bzrdir_format)
 
301
        self.assertEqual(
 
302
            "bzrlib.tests.test_selftest.TestTestScenarioApplication."
 
303
            "test_apply_scenario(new id 2)",
 
304
            adapted_test2.id())
 
305
 
 
306
 
 
307
class TestInterRepositoryScenarios(tests.TestCase):
 
308
 
 
309
    def test_scenarios(self):
 
310
        # check that constructor parameters are passed through to the adapted
 
311
        # test.
 
312
        from bzrlib.tests.per_interrepository import make_scenarios
 
313
        server1 = "a"
 
314
        server2 = "b"
 
315
        formats = [("C0", "C1", "C2", "C3"), ("D0", "D1", "D2", "D3")]
 
316
        scenarios = make_scenarios(server1, server2, formats)
 
317
        self.assertEqual([
 
318
            ('C0,str,str',
 
319
             {'repository_format': 'C1',
 
320
              'repository_format_to': 'C2',
 
321
              'transport_readonly_server': 'b',
 
322
              'transport_server': 'a',
 
323
              'extra_setup': 'C3'}),
 
324
            ('D0,str,str',
 
325
             {'repository_format': 'D1',
 
326
              'repository_format_to': 'D2',
 
327
              'transport_readonly_server': 'b',
 
328
              'transport_server': 'a',
 
329
              'extra_setup': 'D3'})],
 
330
            scenarios)
 
331
 
 
332
 
 
333
class TestWorkingTreeScenarios(tests.TestCase):
 
334
 
 
335
    def test_scenarios(self):
 
336
        # check that constructor parameters are passed through to the adapted
 
337
        # test.
 
338
        from bzrlib.tests.per_workingtree import make_scenarios
 
339
        server1 = "a"
 
340
        server2 = "b"
 
341
        formats = [workingtree.WorkingTreeFormat4(),
 
342
                   workingtree.WorkingTreeFormat3(),]
 
343
        scenarios = make_scenarios(server1, server2, formats)
 
344
        self.assertEqual([
 
345
            ('WorkingTreeFormat4',
 
346
             {'bzrdir_format': formats[0]._matchingbzrdir,
 
347
              'transport_readonly_server': 'b',
 
348
              'transport_server': 'a',
 
349
              'workingtree_format': formats[0]}),
 
350
            ('WorkingTreeFormat3',
 
351
             {'bzrdir_format': formats[1]._matchingbzrdir,
 
352
              'transport_readonly_server': 'b',
 
353
              'transport_server': 'a',
 
354
              'workingtree_format': formats[1]})],
 
355
            scenarios)
 
356
 
 
357
 
 
358
class TestTreeScenarios(tests.TestCase):
 
359
 
 
360
    def test_scenarios(self):
 
361
        # the tree implementation scenario generator is meant to setup one
 
362
        # instance for each working tree format, and one additional instance
 
363
        # that will use the default wt format, but create a revision tree for
 
364
        # the tests.  this means that the wt ones should have the
 
365
        # workingtree_to_test_tree attribute set to 'return_parameter' and the
 
366
        # revision one set to revision_tree_from_workingtree.
 
367
 
 
368
        from bzrlib.tests.per_tree import (
 
369
            _dirstate_tree_from_workingtree,
 
370
            make_scenarios,
 
371
            preview_tree_pre,
 
372
            preview_tree_post,
 
373
            return_parameter,
 
374
            revision_tree_from_workingtree
 
375
            )
 
376
        server1 = "a"
 
377
        server2 = "b"
 
378
        formats = [workingtree.WorkingTreeFormat4(),
 
379
                   workingtree.WorkingTreeFormat3(),]
 
380
        scenarios = make_scenarios(server1, server2, formats)
 
381
        self.assertEqual(7, len(scenarios))
 
382
        default_wt_format = workingtree.format_registry.get_default()
 
383
        wt4_format = workingtree.WorkingTreeFormat4()
 
384
        wt5_format = workingtree.WorkingTreeFormat5()
 
385
        expected_scenarios = [
 
386
            ('WorkingTreeFormat4',
 
387
             {'bzrdir_format': formats[0]._matchingbzrdir,
 
388
              'transport_readonly_server': 'b',
 
389
              'transport_server': 'a',
 
390
              'workingtree_format': formats[0],
 
391
              '_workingtree_to_test_tree': return_parameter,
 
392
              }),
 
393
            ('WorkingTreeFormat3',
 
394
             {'bzrdir_format': formats[1]._matchingbzrdir,
 
395
              'transport_readonly_server': 'b',
 
396
              'transport_server': 'a',
 
397
              'workingtree_format': formats[1],
 
398
              '_workingtree_to_test_tree': return_parameter,
 
399
             }),
 
400
            ('RevisionTree',
 
401
             {'_workingtree_to_test_tree': revision_tree_from_workingtree,
 
402
              'bzrdir_format': default_wt_format._matchingbzrdir,
 
403
              'transport_readonly_server': 'b',
 
404
              'transport_server': 'a',
 
405
              'workingtree_format': default_wt_format,
 
406
             }),
 
407
            ('DirStateRevisionTree,WT4',
 
408
             {'_workingtree_to_test_tree': _dirstate_tree_from_workingtree,
 
409
              'bzrdir_format': wt4_format._matchingbzrdir,
 
410
              'transport_readonly_server': 'b',
 
411
              'transport_server': 'a',
 
412
              'workingtree_format': wt4_format,
 
413
             }),
 
414
            ('DirStateRevisionTree,WT5',
 
415
             {'_workingtree_to_test_tree': _dirstate_tree_from_workingtree,
 
416
              'bzrdir_format': wt5_format._matchingbzrdir,
 
417
              'transport_readonly_server': 'b',
 
418
              'transport_server': 'a',
 
419
              'workingtree_format': wt5_format,
 
420
             }),
 
421
            ('PreviewTree',
 
422
             {'_workingtree_to_test_tree': preview_tree_pre,
 
423
              'bzrdir_format': default_wt_format._matchingbzrdir,
 
424
              'transport_readonly_server': 'b',
 
425
              'transport_server': 'a',
 
426
              'workingtree_format': default_wt_format}),
 
427
            ('PreviewTreePost',
 
428
             {'_workingtree_to_test_tree': preview_tree_post,
 
429
              'bzrdir_format': default_wt_format._matchingbzrdir,
 
430
              'transport_readonly_server': 'b',
 
431
              'transport_server': 'a',
 
432
              'workingtree_format': default_wt_format}),
 
433
             ]
 
434
        self.assertEqual(expected_scenarios, scenarios)
 
435
 
 
436
 
 
437
class TestInterTreeScenarios(tests.TestCase):
 
438
    """A group of tests that test the InterTreeTestAdapter."""
 
439
 
 
440
    def test_scenarios(self):
 
441
        # check that constructor parameters are passed through to the adapted
 
442
        # test.
 
443
        # for InterTree tests we want the machinery to bring up two trees in
 
444
        # each instance: the base one, and the one we are interacting with.
 
445
        # because each optimiser can be direction specific, we need to test
 
446
        # each optimiser in its chosen direction.
 
447
        # unlike the TestProviderAdapter we dont want to automatically add a
 
448
        # parameterized one for WorkingTree - the optimisers will tell us what
 
449
        # ones to add.
 
450
        from bzrlib.tests.per_tree import (
 
451
            return_parameter,
 
452
            )
 
453
        from bzrlib.tests.per_intertree import (
 
454
            make_scenarios,
 
455
            )
 
456
        from bzrlib.workingtree import WorkingTreeFormat3, WorkingTreeFormat4
 
457
        input_test = TestInterTreeScenarios(
 
458
            "test_scenarios")
 
459
        server1 = "a"
 
460
        server2 = "b"
 
461
        format1 = WorkingTreeFormat4()
 
462
        format2 = WorkingTreeFormat3()
 
463
        formats = [("1", str, format1, format2, "converter1"),
 
464
            ("2", int, format2, format1, "converter2")]
 
465
        scenarios = make_scenarios(server1, server2, formats)
 
466
        self.assertEqual(2, len(scenarios))
 
467
        expected_scenarios = [
 
468
            ("1", {
 
469
                "bzrdir_format": format1._matchingbzrdir,
 
470
                "intertree_class": formats[0][1],
 
471
                "workingtree_format": formats[0][2],
 
472
                "workingtree_format_to": formats[0][3],
 
473
                "mutable_trees_to_test_trees": formats[0][4],
 
474
                "_workingtree_to_test_tree": return_parameter,
 
475
                "transport_server": server1,
 
476
                "transport_readonly_server": server2,
 
477
                }),
 
478
            ("2", {
 
479
                "bzrdir_format": format2._matchingbzrdir,
 
480
                "intertree_class": formats[1][1],
 
481
                "workingtree_format": formats[1][2],
 
482
                "workingtree_format_to": formats[1][3],
 
483
                "mutable_trees_to_test_trees": formats[1][4],
 
484
                "_workingtree_to_test_tree": return_parameter,
 
485
                "transport_server": server1,
 
486
                "transport_readonly_server": server2,
 
487
                }),
 
488
            ]
 
489
        self.assertEqual(scenarios, expected_scenarios)
 
490
 
 
491
 
 
492
class TestTestCaseInTempDir(tests.TestCaseInTempDir):
 
493
 
 
494
    def test_home_is_not_working(self):
 
495
        self.assertNotEqual(self.test_dir, self.test_home_dir)
 
496
        cwd = osutils.getcwd()
 
497
        self.assertIsSameRealPath(self.test_dir, cwd)
 
498
        self.assertIsSameRealPath(self.test_home_dir, os.environ['HOME'])
 
499
 
 
500
    def test_assertEqualStat_equal(self):
 
501
        from bzrlib.tests.test_dirstate import _FakeStat
 
502
        self.build_tree(["foo"])
 
503
        real = os.lstat("foo")
 
504
        fake = _FakeStat(real.st_size, real.st_mtime, real.st_ctime,
 
505
            real.st_dev, real.st_ino, real.st_mode)
 
506
        self.assertEqualStat(real, fake)
 
507
 
 
508
    def test_assertEqualStat_notequal(self):
 
509
        self.build_tree(["foo", "longname"])
 
510
        self.assertRaises(AssertionError, self.assertEqualStat,
 
511
            os.lstat("foo"), os.lstat("longname"))
 
512
 
 
513
    def test_failUnlessExists(self):
 
514
        """Deprecated failUnlessExists and failIfExists"""
 
515
        self.applyDeprecated(
 
516
            deprecated_in((2, 4)),
 
517
            self.failUnlessExists, '.')
 
518
        self.build_tree(['foo/', 'foo/bar'])
 
519
        self.applyDeprecated(
 
520
            deprecated_in((2, 4)),
 
521
            self.failUnlessExists, 'foo/bar')
 
522
        self.applyDeprecated(
 
523
            deprecated_in((2, 4)),
 
524
            self.failIfExists, 'foo/foo')
 
525
 
 
526
    def test_assertPathExists(self):
 
527
        self.assertPathExists('.')
 
528
        self.build_tree(['foo/', 'foo/bar'])
 
529
        self.assertPathExists('foo/bar')
 
530
        self.assertPathDoesNotExist('foo/foo')
 
531
 
 
532
 
 
533
class TestTestCaseWithMemoryTransport(tests.TestCaseWithMemoryTransport):
 
534
 
 
535
    def test_home_is_non_existant_dir_under_root(self):
 
536
        """The test_home_dir for TestCaseWithMemoryTransport is missing.
 
537
 
 
538
        This is because TestCaseWithMemoryTransport is for tests that do not
 
539
        need any disk resources: they should be hooked into bzrlib in such a
 
540
        way that no global settings are being changed by the test (only a
 
541
        few tests should need to do that), and having a missing dir as home is
 
542
        an effective way to ensure that this is the case.
 
543
        """
 
544
        self.assertIsSameRealPath(
 
545
            self.TEST_ROOT + "/MemoryTransportMissingHomeDir",
 
546
            self.test_home_dir)
 
547
        self.assertIsSameRealPath(self.test_home_dir, os.environ['HOME'])
 
548
 
 
549
    def test_cwd_is_TEST_ROOT(self):
 
550
        self.assertIsSameRealPath(self.test_dir, self.TEST_ROOT)
 
551
        cwd = osutils.getcwd()
 
552
        self.assertIsSameRealPath(self.test_dir, cwd)
 
553
 
 
554
    def test_BZR_HOME_and_HOME_are_bytestrings(self):
 
555
        """The $BZR_HOME and $HOME environment variables should not be unicode.
 
556
 
 
557
        See https://bugs.launchpad.net/bzr/+bug/464174
 
558
        """
 
559
        self.assertIsInstance(os.environ['BZR_HOME'], str)
 
560
        self.assertIsInstance(os.environ['HOME'], str)
 
561
 
 
562
    def test_make_branch_and_memory_tree(self):
 
563
        """In TestCaseWithMemoryTransport we should not make the branch on disk.
 
564
 
 
565
        This is hard to comprehensively robustly test, so we settle for making
 
566
        a branch and checking no directory was created at its relpath.
 
567
        """
 
568
        tree = self.make_branch_and_memory_tree('dir')
 
569
        # Guard against regression into MemoryTransport leaking
 
570
        # files to disk instead of keeping them in memory.
 
571
        self.assertFalse(osutils.lexists('dir'))
 
572
        self.assertIsInstance(tree, memorytree.MemoryTree)
 
573
 
 
574
    def test_make_branch_and_memory_tree_with_format(self):
 
575
        """make_branch_and_memory_tree should accept a format option."""
 
576
        format = bzrdir.BzrDirMetaFormat1()
 
577
        format.repository_format = repository.format_registry.get_default()
 
578
        tree = self.make_branch_and_memory_tree('dir', format=format)
 
579
        # Guard against regression into MemoryTransport leaking
 
580
        # files to disk instead of keeping them in memory.
 
581
        self.assertFalse(osutils.lexists('dir'))
 
582
        self.assertIsInstance(tree, memorytree.MemoryTree)
 
583
        self.assertEqual(format.repository_format.__class__,
 
584
            tree.branch.repository._format.__class__)
 
585
 
 
586
    def test_make_branch_builder(self):
 
587
        builder = self.make_branch_builder('dir')
 
588
        self.assertIsInstance(builder, branchbuilder.BranchBuilder)
 
589
        # Guard against regression into MemoryTransport leaking
 
590
        # files to disk instead of keeping them in memory.
 
591
        self.assertFalse(osutils.lexists('dir'))
 
592
 
 
593
    def test_make_branch_builder_with_format(self):
 
594
        # Use a repo layout that doesn't conform to a 'named' layout, to ensure
 
595
        # that the format objects are used.
 
596
        format = bzrdir.BzrDirMetaFormat1()
 
597
        repo_format = repository.format_registry.get_default()
 
598
        format.repository_format = repo_format
 
599
        builder = self.make_branch_builder('dir', format=format)
 
600
        the_branch = builder.get_branch()
 
601
        # Guard against regression into MemoryTransport leaking
 
602
        # files to disk instead of keeping them in memory.
 
603
        self.assertFalse(osutils.lexists('dir'))
 
604
        self.assertEqual(format.repository_format.__class__,
 
605
                         the_branch.repository._format.__class__)
 
606
        self.assertEqual(repo_format.get_format_string(),
 
607
                         self.get_transport().get_bytes(
 
608
                            'dir/.bzr/repository/format'))
 
609
 
 
610
    def test_make_branch_builder_with_format_name(self):
 
611
        builder = self.make_branch_builder('dir', format='knit')
 
612
        the_branch = builder.get_branch()
 
613
        # Guard against regression into MemoryTransport leaking
 
614
        # files to disk instead of keeping them in memory.
 
615
        self.assertFalse(osutils.lexists('dir'))
 
616
        dir_format = bzrdir.format_registry.make_bzrdir('knit')
 
617
        self.assertEqual(dir_format.repository_format.__class__,
 
618
                         the_branch.repository._format.__class__)
 
619
        self.assertEqual('Bazaar-NG Knit Repository Format 1',
 
620
                         self.get_transport().get_bytes(
 
621
                            'dir/.bzr/repository/format'))
 
622
 
 
623
    def test_dangling_locks_cause_failures(self):
 
624
        class TestDanglingLock(tests.TestCaseWithMemoryTransport):
 
625
            def test_function(self):
 
626
                t = self.get_transport('.')
 
627
                l = lockdir.LockDir(t, 'lock')
 
628
                l.create()
 
629
                l.attempt_lock()
 
630
        test = TestDanglingLock('test_function')
 
631
        result = test.run()
 
632
        total_failures = result.errors + result.failures
 
633
        if self._lock_check_thorough:
 
634
            self.assertEqual(1, len(total_failures))
 
635
        else:
 
636
            # When _lock_check_thorough is disabled, then we don't trigger a
 
637
            # failure
 
638
            self.assertEqual(0, len(total_failures))
 
639
 
 
640
 
 
641
class TestTestCaseWithTransport(tests.TestCaseWithTransport):
 
642
    """Tests for the convenience functions TestCaseWithTransport introduces."""
 
643
 
 
644
    def test_get_readonly_url_none(self):
 
645
        from bzrlib.transport.readonly import ReadonlyTransportDecorator
 
646
        self.vfs_transport_factory = memory.MemoryServer
 
647
        self.transport_readonly_server = None
 
648
        # calling get_readonly_transport() constructs a decorator on the url
 
649
        # for the server
 
650
        url = self.get_readonly_url()
 
651
        url2 = self.get_readonly_url('foo/bar')
 
652
        t = transport.get_transport(url)
 
653
        t2 = transport.get_transport(url2)
 
654
        self.assertIsInstance(t, ReadonlyTransportDecorator)
 
655
        self.assertIsInstance(t2, ReadonlyTransportDecorator)
 
656
        self.assertEqual(t2.base[:-1], t.abspath('foo/bar'))
 
657
 
 
658
    def test_get_readonly_url_http(self):
 
659
        from bzrlib.tests.http_server import HttpServer
 
660
        from bzrlib.transport.http import HttpTransportBase
 
661
        self.transport_server = test_server.LocalURLServer
 
662
        self.transport_readonly_server = HttpServer
 
663
        # calling get_readonly_transport() gives us a HTTP server instance.
 
664
        url = self.get_readonly_url()
 
665
        url2 = self.get_readonly_url('foo/bar')
 
666
        # the transport returned may be any HttpTransportBase subclass
 
667
        t = transport.get_transport(url)
 
668
        t2 = transport.get_transport(url2)
 
669
        self.assertIsInstance(t, HttpTransportBase)
 
670
        self.assertIsInstance(t2, HttpTransportBase)
 
671
        self.assertEqual(t2.base[:-1], t.abspath('foo/bar'))
 
672
 
 
673
    def test_is_directory(self):
 
674
        """Test assertIsDirectory assertion"""
 
675
        t = self.get_transport()
 
676
        self.build_tree(['a_dir/', 'a_file'], transport=t)
 
677
        self.assertIsDirectory('a_dir', t)
 
678
        self.assertRaises(AssertionError, self.assertIsDirectory, 'a_file', t)
 
679
        self.assertRaises(AssertionError, self.assertIsDirectory, 'not_here', t)
 
680
 
 
681
    def test_make_branch_builder(self):
 
682
        builder = self.make_branch_builder('dir')
 
683
        rev_id = builder.build_commit()
 
684
        self.assertPathExists('dir')
 
685
        a_dir = bzrdir.BzrDir.open('dir')
 
686
        self.assertRaises(errors.NoWorkingTree, a_dir.open_workingtree)
 
687
        a_branch = a_dir.open_branch()
 
688
        builder_branch = builder.get_branch()
 
689
        self.assertEqual(a_branch.base, builder_branch.base)
 
690
        self.assertEqual((1, rev_id), builder_branch.last_revision_info())
 
691
        self.assertEqual((1, rev_id), a_branch.last_revision_info())
 
692
 
 
693
 
 
694
class TestTestCaseTransports(tests.TestCaseWithTransport):
 
695
 
 
696
    def setUp(self):
 
697
        super(TestTestCaseTransports, self).setUp()
 
698
        self.vfs_transport_factory = memory.MemoryServer
 
699
 
 
700
    def test_make_bzrdir_preserves_transport(self):
 
701
        t = self.get_transport()
 
702
        result_bzrdir = self.make_bzrdir('subdir')
 
703
        self.assertIsInstance(result_bzrdir.transport,
 
704
                              memory.MemoryTransport)
 
705
        # should not be on disk, should only be in memory
 
706
        self.assertPathDoesNotExist('subdir')
 
707
 
 
708
 
 
709
class TestChrootedTest(tests.ChrootedTestCase):
 
710
 
 
711
    def test_root_is_root(self):
 
712
        t = transport.get_transport(self.get_readonly_url())
 
713
        url = t.base
 
714
        self.assertEqual(url, t.clone('..').base)
 
715
 
 
716
 
 
717
class TestProfileResult(tests.TestCase):
 
718
 
 
719
    def test_profiles_tests(self):
 
720
        self.requireFeature(test_lsprof.LSProfFeature)
 
721
        terminal = testtools.tests.helpers.ExtendedTestResult()
 
722
        result = tests.ProfileResult(terminal)
 
723
        class Sample(tests.TestCase):
 
724
            def a(self):
 
725
                self.sample_function()
 
726
            def sample_function(self):
 
727
                pass
 
728
        test = Sample("a")
 
729
        test.run(result)
 
730
        case = terminal._events[0][1]
 
731
        self.assertLength(1, case._benchcalls)
 
732
        # We must be able to unpack it as the test reporting code wants
 
733
        (_, _, _), stats = case._benchcalls[0]
 
734
        self.assertTrue(callable(stats.pprint))
 
735
 
 
736
 
 
737
class TestTestResult(tests.TestCase):
 
738
 
 
739
    def check_timing(self, test_case, expected_re):
 
740
        result = bzrlib.tests.TextTestResult(self._log_file,
 
741
                descriptions=0,
 
742
                verbosity=1,
 
743
                )
 
744
        capture = testtools.tests.helpers.ExtendedTestResult()
 
745
        test_case.run(MultiTestResult(result, capture))
 
746
        run_case = capture._events[0][1]
 
747
        timed_string = result._testTimeString(run_case)
 
748
        self.assertContainsRe(timed_string, expected_re)
 
749
 
 
750
    def test_test_reporting(self):
 
751
        class ShortDelayTestCase(tests.TestCase):
 
752
            def test_short_delay(self):
 
753
                time.sleep(0.003)
 
754
            def test_short_benchmark(self):
 
755
                self.time(time.sleep, 0.003)
 
756
        self.check_timing(ShortDelayTestCase('test_short_delay'),
 
757
                          r"^ +[0-9]+ms$")
 
758
        # if a benchmark time is given, we now show just that time followed by
 
759
        # a star
 
760
        self.check_timing(ShortDelayTestCase('test_short_benchmark'),
 
761
                          r"^ +[0-9]+ms\*$")
 
762
 
 
763
    def test_unittest_reporting_unittest_class(self):
 
764
        # getting the time from a non-bzrlib test works ok
 
765
        class ShortDelayTestCase(unittest.TestCase):
 
766
            def test_short_delay(self):
 
767
                time.sleep(0.003)
 
768
        self.check_timing(ShortDelayTestCase('test_short_delay'),
 
769
                          r"^ +[0-9]+ms$")
 
770
 
 
771
    def _time_hello_world_encoding(self):
 
772
        """Profile two sleep calls
 
773
 
 
774
        This is used to exercise the test framework.
 
775
        """
 
776
        self.time(unicode, 'hello', errors='replace')
 
777
        self.time(unicode, 'world', errors='replace')
 
778
 
 
779
    def test_lsprofiling(self):
 
780
        """Verbose test result prints lsprof statistics from test cases."""
 
781
        self.requireFeature(test_lsprof.LSProfFeature)
 
782
        result_stream = StringIO()
 
783
        result = bzrlib.tests.VerboseTestResult(
 
784
            result_stream,
 
785
            descriptions=0,
 
786
            verbosity=2,
 
787
            )
 
788
        # we want profile a call of some sort and check it is output by
 
789
        # addSuccess. We dont care about addError or addFailure as they
 
790
        # are not that interesting for performance tuning.
 
791
        # make a new test instance that when run will generate a profile
 
792
        example_test_case = TestTestResult("_time_hello_world_encoding")
 
793
        example_test_case._gather_lsprof_in_benchmarks = True
 
794
        # execute the test, which should succeed and record profiles
 
795
        example_test_case.run(result)
 
796
        # lsprofile_something()
 
797
        # if this worked we want
 
798
        # LSProf output for <built in function unicode> (['hello'], {'errors': 'replace'})
 
799
        #    CallCount    Recursive    Total(ms)   Inline(ms) module:lineno(function)
 
800
        # (the lsprof header)
 
801
        # ... an arbitrary number of lines
 
802
        # and the function call which is time.sleep.
 
803
        #           1        0            ???         ???       ???(sleep)
 
804
        # and then repeated but with 'world', rather than 'hello'.
 
805
        # this should appear in the output stream of our test result.
 
806
        output = result_stream.getvalue()
 
807
        self.assertContainsRe(output,
 
808
            r"LSProf output for <type 'unicode'>\(\('hello',\), {'errors': 'replace'}\)")
 
809
        self.assertContainsRe(output,
 
810
            r" *CallCount *Recursive *Total\(ms\) *Inline\(ms\) *module:lineno\(function\)\n")
 
811
        self.assertContainsRe(output,
 
812
            r"( +1 +0 +0\.\d+ +0\.\d+ +<method 'disable' of '_lsprof\.Profiler' objects>\n)?")
 
813
        self.assertContainsRe(output,
 
814
            r"LSProf output for <type 'unicode'>\(\('world',\), {'errors': 'replace'}\)\n")
 
815
 
 
816
    def test_uses_time_from_testtools(self):
 
817
        """Test case timings in verbose results should use testtools times"""
 
818
        import datetime
 
819
        class TimeAddedVerboseTestResult(tests.VerboseTestResult):
 
820
            def startTest(self, test):
 
821
                self.time(datetime.datetime.utcfromtimestamp(1.145))
 
822
                super(TimeAddedVerboseTestResult, self).startTest(test)
 
823
            def addSuccess(self, test):
 
824
                self.time(datetime.datetime.utcfromtimestamp(51.147))
 
825
                super(TimeAddedVerboseTestResult, self).addSuccess(test)
 
826
            def report_tests_starting(self): pass
 
827
        sio = StringIO()
 
828
        self.get_passing_test().run(TimeAddedVerboseTestResult(sio, 0, 2))
 
829
        self.assertEndsWith(sio.getvalue(), "OK    50002ms\n")
 
830
 
 
831
    def test_known_failure(self):
 
832
        """A KnownFailure being raised should trigger several result actions."""
 
833
        class InstrumentedTestResult(tests.ExtendedTestResult):
 
834
            def stopTestRun(self): pass
 
835
            def report_tests_starting(self): pass
 
836
            def report_known_failure(self, test, err=None, details=None):
 
837
                self._call = test, 'known failure'
 
838
        result = InstrumentedTestResult(None, None, None, None)
 
839
        class Test(tests.TestCase):
 
840
            def test_function(self):
 
841
                raise tests.KnownFailure('failed!')
 
842
        test = Test("test_function")
 
843
        test.run(result)
 
844
        # it should invoke 'report_known_failure'.
 
845
        self.assertEqual(2, len(result._call))
 
846
        self.assertEqual(test.id(), result._call[0].id())
 
847
        self.assertEqual('known failure', result._call[1])
 
848
        # we dont introspec the traceback, if the rest is ok, it would be
 
849
        # exceptional for it not to be.
 
850
        # it should update the known_failure_count on the object.
 
851
        self.assertEqual(1, result.known_failure_count)
 
852
        # the result should be successful.
 
853
        self.assertTrue(result.wasSuccessful())
 
854
 
 
855
    def test_verbose_report_known_failure(self):
 
856
        # verbose test output formatting
 
857
        result_stream = StringIO()
 
858
        result = bzrlib.tests.VerboseTestResult(
 
859
            result_stream,
 
860
            descriptions=0,
 
861
            verbosity=2,
 
862
            )
 
863
        test = self.get_passing_test()
 
864
        result.startTest(test)
 
865
        prefix = len(result_stream.getvalue())
 
866
        # the err parameter has the shape:
 
867
        # (class, exception object, traceback)
 
868
        # KnownFailures dont get their tracebacks shown though, so we
 
869
        # can skip that.
 
870
        err = (tests.KnownFailure, tests.KnownFailure('foo'), None)
 
871
        result.report_known_failure(test, err)
 
872
        output = result_stream.getvalue()[prefix:]
 
873
        lines = output.splitlines()
 
874
        self.assertContainsRe(lines[0], r'XFAIL *\d+ms$')
 
875
        if sys.version_info > (2, 7):
 
876
            self.expectFailure("_ExpectedFailure on 2.7 loses the message",
 
877
                self.assertNotEqual, lines[1], '    ')
 
878
        self.assertEqual(lines[1], '    foo')
 
879
        self.assertEqual(2, len(lines))
 
880
 
 
881
    def get_passing_test(self):
 
882
        """Return a test object that can't be run usefully."""
 
883
        def passing_test():
 
884
            pass
 
885
        return unittest.FunctionTestCase(passing_test)
 
886
 
 
887
    def test_add_not_supported(self):
 
888
        """Test the behaviour of invoking addNotSupported."""
 
889
        class InstrumentedTestResult(tests.ExtendedTestResult):
 
890
            def stopTestRun(self): pass
 
891
            def report_tests_starting(self): pass
 
892
            def report_unsupported(self, test, feature):
 
893
                self._call = test, feature
 
894
        result = InstrumentedTestResult(None, None, None, None)
 
895
        test = SampleTestCase('_test_pass')
 
896
        feature = tests.Feature()
 
897
        result.startTest(test)
 
898
        result.addNotSupported(test, feature)
 
899
        # it should invoke 'report_unsupported'.
 
900
        self.assertEqual(2, len(result._call))
 
901
        self.assertEqual(test, result._call[0])
 
902
        self.assertEqual(feature, result._call[1])
 
903
        # the result should be successful.
 
904
        self.assertTrue(result.wasSuccessful())
 
905
        # it should record the test against a count of tests not run due to
 
906
        # this feature.
 
907
        self.assertEqual(1, result.unsupported['Feature'])
 
908
        # and invoking it again should increment that counter
 
909
        result.addNotSupported(test, feature)
 
910
        self.assertEqual(2, result.unsupported['Feature'])
 
911
 
 
912
    def test_verbose_report_unsupported(self):
 
913
        # verbose test output formatting
 
914
        result_stream = StringIO()
 
915
        result = bzrlib.tests.VerboseTestResult(
 
916
            result_stream,
 
917
            descriptions=0,
 
918
            verbosity=2,
 
919
            )
 
920
        test = self.get_passing_test()
 
921
        feature = tests.Feature()
 
922
        result.startTest(test)
 
923
        prefix = len(result_stream.getvalue())
 
924
        result.report_unsupported(test, feature)
 
925
        output = result_stream.getvalue()[prefix:]
 
926
        lines = output.splitlines()
 
927
        # We don't check for the final '0ms' since it may fail on slow hosts
 
928
        self.assertStartsWith(lines[0], 'NODEP')
 
929
        self.assertEqual(lines[1],
 
930
                         "    The feature 'Feature' is not available.")
 
931
 
 
932
    def test_unavailable_exception(self):
 
933
        """An UnavailableFeature being raised should invoke addNotSupported."""
 
934
        class InstrumentedTestResult(tests.ExtendedTestResult):
 
935
            def stopTestRun(self): pass
 
936
            def report_tests_starting(self): pass
 
937
            def addNotSupported(self, test, feature):
 
938
                self._call = test, feature
 
939
        result = InstrumentedTestResult(None, None, None, None)
 
940
        feature = tests.Feature()
 
941
        class Test(tests.TestCase):
 
942
            def test_function(self):
 
943
                raise tests.UnavailableFeature(feature)
 
944
        test = Test("test_function")
 
945
        test.run(result)
 
946
        # it should invoke 'addNotSupported'.
 
947
        self.assertEqual(2, len(result._call))
 
948
        self.assertEqual(test.id(), result._call[0].id())
 
949
        self.assertEqual(feature, result._call[1])
 
950
        # and not count as an error
 
951
        self.assertEqual(0, result.error_count)
 
952
 
 
953
    def test_strict_with_unsupported_feature(self):
 
954
        result = bzrlib.tests.TextTestResult(self._log_file, descriptions=0,
 
955
                                             verbosity=1)
 
956
        test = self.get_passing_test()
 
957
        feature = "Unsupported Feature"
 
958
        result.addNotSupported(test, feature)
 
959
        self.assertFalse(result.wasStrictlySuccessful())
 
960
        self.assertEqual(None, result._extractBenchmarkTime(test))
 
961
 
 
962
    def test_strict_with_known_failure(self):
 
963
        result = bzrlib.tests.TextTestResult(self._log_file, descriptions=0,
 
964
                                             verbosity=1)
 
965
        test = self.get_passing_test()
 
966
        err = (tests.KnownFailure, tests.KnownFailure('foo'), None)
 
967
        result.addExpectedFailure(test, err)
 
968
        self.assertFalse(result.wasStrictlySuccessful())
 
969
        self.assertEqual(None, result._extractBenchmarkTime(test))
 
970
 
 
971
    def test_strict_with_success(self):
 
972
        result = bzrlib.tests.TextTestResult(self._log_file, descriptions=0,
 
973
                                             verbosity=1)
 
974
        test = self.get_passing_test()
 
975
        result.addSuccess(test)
 
976
        self.assertTrue(result.wasStrictlySuccessful())
 
977
        self.assertEqual(None, result._extractBenchmarkTime(test))
 
978
 
 
979
    def test_startTests(self):
 
980
        """Starting the first test should trigger startTests."""
 
981
        class InstrumentedTestResult(tests.ExtendedTestResult):
 
982
            calls = 0
 
983
            def startTests(self): self.calls += 1
 
984
        result = InstrumentedTestResult(None, None, None, None)
 
985
        def test_function():
 
986
            pass
 
987
        test = unittest.FunctionTestCase(test_function)
 
988
        test.run(result)
 
989
        self.assertEquals(1, result.calls)
 
990
 
 
991
    def test_startTests_only_once(self):
 
992
        """With multiple tests startTests should still only be called once"""
 
993
        class InstrumentedTestResult(tests.ExtendedTestResult):
 
994
            calls = 0
 
995
            def startTests(self): self.calls += 1
 
996
        result = InstrumentedTestResult(None, None, None, None)
 
997
        suite = unittest.TestSuite([
 
998
            unittest.FunctionTestCase(lambda: None),
 
999
            unittest.FunctionTestCase(lambda: None)])
 
1000
        suite.run(result)
 
1001
        self.assertEquals(1, result.calls)
 
1002
        self.assertEquals(2, result.count)
 
1003
 
 
1004
 
 
1005
class TestUnicodeFilenameFeature(tests.TestCase):
 
1006
 
 
1007
    def test_probe_passes(self):
 
1008
        """UnicodeFilenameFeature._probe passes."""
 
1009
        # We can't test much more than that because the behaviour depends
 
1010
        # on the platform.
 
1011
        tests.UnicodeFilenameFeature._probe()
 
1012
 
 
1013
 
 
1014
class TestRunner(tests.TestCase):
 
1015
 
 
1016
    def dummy_test(self):
 
1017
        pass
 
1018
 
 
1019
    def run_test_runner(self, testrunner, test):
 
1020
        """Run suite in testrunner, saving global state and restoring it.
 
1021
 
 
1022
        This current saves and restores:
 
1023
        TestCaseInTempDir.TEST_ROOT
 
1024
 
 
1025
        There should be no tests in this file that use
 
1026
        bzrlib.tests.TextTestRunner without using this convenience method,
 
1027
        because of our use of global state.
 
1028
        """
 
1029
        old_root = tests.TestCaseInTempDir.TEST_ROOT
 
1030
        try:
 
1031
            tests.TestCaseInTempDir.TEST_ROOT = None
 
1032
            return testrunner.run(test)
 
1033
        finally:
 
1034
            tests.TestCaseInTempDir.TEST_ROOT = old_root
 
1035
 
 
1036
    def test_known_failure_failed_run(self):
 
1037
        # run a test that generates a known failure which should be printed in
 
1038
        # the final output when real failures occur.
 
1039
        class Test(tests.TestCase):
 
1040
            def known_failure_test(self):
 
1041
                self.expectFailure('failed', self.assertTrue, False)
 
1042
        test = unittest.TestSuite()
 
1043
        test.addTest(Test("known_failure_test"))
 
1044
        def failing_test():
 
1045
            self.fail('foo')
 
1046
        test.addTest(unittest.FunctionTestCase(failing_test))
 
1047
        stream = StringIO()
 
1048
        runner = tests.TextTestRunner(stream=stream)
 
1049
        result = self.run_test_runner(runner, test)
 
1050
        lines = stream.getvalue().splitlines()
 
1051
        self.assertContainsRe(stream.getvalue(),
 
1052
            '(?sm)^bzr selftest.*$'
 
1053
            '.*'
 
1054
            '^======================================================================\n'
 
1055
            '^FAIL: failing_test\n'
 
1056
            '^----------------------------------------------------------------------\n'
 
1057
            'Traceback \\(most recent call last\\):\n'
 
1058
            '  .*' # File .*, line .*, in failing_test' - but maybe not from .pyc
 
1059
            '    self.fail\\(\'foo\'\\)\n'
 
1060
            '.*'
 
1061
            '^----------------------------------------------------------------------\n'
 
1062
            '.*'
 
1063
            'FAILED \\(failures=1, known_failure_count=1\\)'
 
1064
            )
 
1065
 
 
1066
    def test_known_failure_ok_run(self):
 
1067
        # run a test that generates a known failure which should be printed in
 
1068
        # the final output.
 
1069
        class Test(tests.TestCase):
 
1070
            def known_failure_test(self):
 
1071
                self.expectFailure('failed', self.assertTrue, False)
 
1072
        test = Test("known_failure_test")
 
1073
        stream = StringIO()
 
1074
        runner = tests.TextTestRunner(stream=stream)
 
1075
        result = self.run_test_runner(runner, test)
 
1076
        self.assertContainsRe(stream.getvalue(),
 
1077
            '\n'
 
1078
            '-*\n'
 
1079
            'Ran 1 test in .*\n'
 
1080
            '\n'
 
1081
            'OK \\(known_failures=1\\)\n')
 
1082
 
 
1083
    def test_result_decorator(self):
 
1084
        # decorate results
 
1085
        calls = []
 
1086
        class LoggingDecorator(ExtendedToOriginalDecorator):
 
1087
            def startTest(self, test):
 
1088
                ExtendedToOriginalDecorator.startTest(self, test)
 
1089
                calls.append('start')
 
1090
        test = unittest.FunctionTestCase(lambda:None)
 
1091
        stream = StringIO()
 
1092
        runner = tests.TextTestRunner(stream=stream,
 
1093
            result_decorators=[LoggingDecorator])
 
1094
        result = self.run_test_runner(runner, test)
 
1095
        self.assertLength(1, calls)
 
1096
 
 
1097
    def test_skipped_test(self):
 
1098
        # run a test that is skipped, and check the suite as a whole still
 
1099
        # succeeds.
 
1100
        # skipping_test must be hidden in here so it's not run as a real test
 
1101
        class SkippingTest(tests.TestCase):
 
1102
            def skipping_test(self):
 
1103
                raise tests.TestSkipped('test intentionally skipped')
 
1104
        runner = tests.TextTestRunner(stream=self._log_file)
 
1105
        test = SkippingTest("skipping_test")
 
1106
        result = self.run_test_runner(runner, test)
 
1107
        self.assertTrue(result.wasSuccessful())
 
1108
 
 
1109
    def test_skipped_from_setup(self):
 
1110
        calls = []
 
1111
        class SkippedSetupTest(tests.TestCase):
 
1112
 
 
1113
            def setUp(self):
 
1114
                calls.append('setUp')
 
1115
                self.addCleanup(self.cleanup)
 
1116
                raise tests.TestSkipped('skipped setup')
 
1117
 
 
1118
            def test_skip(self):
 
1119
                self.fail('test reached')
 
1120
 
 
1121
            def cleanup(self):
 
1122
                calls.append('cleanup')
 
1123
 
 
1124
        runner = tests.TextTestRunner(stream=self._log_file)
 
1125
        test = SkippedSetupTest('test_skip')
 
1126
        result = self.run_test_runner(runner, test)
 
1127
        self.assertTrue(result.wasSuccessful())
 
1128
        # Check if cleanup was called the right number of times.
 
1129
        self.assertEqual(['setUp', 'cleanup'], calls)
 
1130
 
 
1131
    def test_skipped_from_test(self):
 
1132
        calls = []
 
1133
        class SkippedTest(tests.TestCase):
 
1134
 
 
1135
            def setUp(self):
 
1136
                tests.TestCase.setUp(self)
 
1137
                calls.append('setUp')
 
1138
                self.addCleanup(self.cleanup)
 
1139
 
 
1140
            def test_skip(self):
 
1141
                raise tests.TestSkipped('skipped test')
 
1142
 
 
1143
            def cleanup(self):
 
1144
                calls.append('cleanup')
 
1145
 
 
1146
        runner = tests.TextTestRunner(stream=self._log_file)
 
1147
        test = SkippedTest('test_skip')
 
1148
        result = self.run_test_runner(runner, test)
 
1149
        self.assertTrue(result.wasSuccessful())
 
1150
        # Check if cleanup was called the right number of times.
 
1151
        self.assertEqual(['setUp', 'cleanup'], calls)
 
1152
 
 
1153
    def test_not_applicable(self):
 
1154
        # run a test that is skipped because it's not applicable
 
1155
        class Test(tests.TestCase):
 
1156
            def not_applicable_test(self):
 
1157
                raise tests.TestNotApplicable('this test never runs')
 
1158
        out = StringIO()
 
1159
        runner = tests.TextTestRunner(stream=out, verbosity=2)
 
1160
        test = Test("not_applicable_test")
 
1161
        result = self.run_test_runner(runner, test)
 
1162
        self._log_file.write(out.getvalue())
 
1163
        self.assertTrue(result.wasSuccessful())
 
1164
        self.assertTrue(result.wasStrictlySuccessful())
 
1165
        self.assertContainsRe(out.getvalue(),
 
1166
                r'(?m)not_applicable_test   * N/A')
 
1167
        self.assertContainsRe(out.getvalue(),
 
1168
                r'(?m)^    this test never runs')
 
1169
 
 
1170
    def test_unsupported_features_listed(self):
 
1171
        """When unsupported features are encountered they are detailed."""
 
1172
        class Feature1(tests.Feature):
 
1173
            def _probe(self): return False
 
1174
        class Feature2(tests.Feature):
 
1175
            def _probe(self): return False
 
1176
        # create sample tests
 
1177
        test1 = SampleTestCase('_test_pass')
 
1178
        test1._test_needs_features = [Feature1()]
 
1179
        test2 = SampleTestCase('_test_pass')
 
1180
        test2._test_needs_features = [Feature2()]
 
1181
        test = unittest.TestSuite()
 
1182
        test.addTest(test1)
 
1183
        test.addTest(test2)
 
1184
        stream = StringIO()
 
1185
        runner = tests.TextTestRunner(stream=stream)
 
1186
        result = self.run_test_runner(runner, test)
 
1187
        lines = stream.getvalue().splitlines()
 
1188
        self.assertEqual([
 
1189
            'OK',
 
1190
            "Missing feature 'Feature1' skipped 1 tests.",
 
1191
            "Missing feature 'Feature2' skipped 1 tests.",
 
1192
            ],
 
1193
            lines[-3:])
 
1194
 
 
1195
    def test_verbose_test_count(self):
 
1196
        """A verbose test run reports the right test count at the start"""
 
1197
        suite = TestUtil.TestSuite([
 
1198
            unittest.FunctionTestCase(lambda:None),
 
1199
            unittest.FunctionTestCase(lambda:None)])
 
1200
        self.assertEqual(suite.countTestCases(), 2)
 
1201
        stream = StringIO()
 
1202
        runner = tests.TextTestRunner(stream=stream, verbosity=2)
 
1203
        # Need to use the CountingDecorator as that's what sets num_tests
 
1204
        result = self.run_test_runner(runner, tests.CountingDecorator(suite))
 
1205
        self.assertStartsWith(stream.getvalue(), "running 2 tests")
 
1206
 
 
1207
    def test_startTestRun(self):
 
1208
        """run should call result.startTestRun()"""
 
1209
        calls = []
 
1210
        class LoggingDecorator(ExtendedToOriginalDecorator):
 
1211
            def startTestRun(self):
 
1212
                ExtendedToOriginalDecorator.startTestRun(self)
 
1213
                calls.append('startTestRun')
 
1214
        test = unittest.FunctionTestCase(lambda:None)
 
1215
        stream = StringIO()
 
1216
        runner = tests.TextTestRunner(stream=stream,
 
1217
            result_decorators=[LoggingDecorator])
 
1218
        result = self.run_test_runner(runner, test)
 
1219
        self.assertLength(1, calls)
 
1220
 
 
1221
    def test_stopTestRun(self):
 
1222
        """run should call result.stopTestRun()"""
 
1223
        calls = []
 
1224
        class LoggingDecorator(ExtendedToOriginalDecorator):
 
1225
            def stopTestRun(self):
 
1226
                ExtendedToOriginalDecorator.stopTestRun(self)
 
1227
                calls.append('stopTestRun')
 
1228
        test = unittest.FunctionTestCase(lambda:None)
 
1229
        stream = StringIO()
 
1230
        runner = tests.TextTestRunner(stream=stream,
 
1231
            result_decorators=[LoggingDecorator])
 
1232
        result = self.run_test_runner(runner, test)
 
1233
        self.assertLength(1, calls)
 
1234
 
 
1235
    def test_unicode_test_output_on_ascii_stream(self):
 
1236
        """Showing results should always succeed even on an ascii console"""
 
1237
        class FailureWithUnicode(tests.TestCase):
 
1238
            def test_log_unicode(self):
 
1239
                self.log(u"\u2606")
 
1240
                self.fail("Now print that log!")
 
1241
        out = StringIO()
 
1242
        self.overrideAttr(osutils, "get_terminal_encoding",
 
1243
            lambda trace=False: "ascii")
 
1244
        result = self.run_test_runner(tests.TextTestRunner(stream=out),
 
1245
            FailureWithUnicode("test_log_unicode"))
 
1246
        self.assertContainsRe(out.getvalue(),
 
1247
            "Text attachment: log\n"
 
1248
            "-+\n"
 
1249
            "\d+\.\d+  \\\\u2606\n"
 
1250
            "-+\n")
 
1251
 
 
1252
 
 
1253
class SampleTestCase(tests.TestCase):
 
1254
 
 
1255
    def _test_pass(self):
 
1256
        pass
 
1257
 
 
1258
class _TestException(Exception):
 
1259
    pass
 
1260
 
 
1261
 
 
1262
class TestTestCase(tests.TestCase):
 
1263
    """Tests that test the core bzrlib TestCase."""
 
1264
 
 
1265
    def test_assertLength_matches_empty(self):
 
1266
        a_list = []
 
1267
        self.assertLength(0, a_list)
 
1268
 
 
1269
    def test_assertLength_matches_nonempty(self):
 
1270
        a_list = [1, 2, 3]
 
1271
        self.assertLength(3, a_list)
 
1272
 
 
1273
    def test_assertLength_fails_different(self):
 
1274
        a_list = []
 
1275
        self.assertRaises(AssertionError, self.assertLength, 1, a_list)
 
1276
 
 
1277
    def test_assertLength_shows_sequence_in_failure(self):
 
1278
        a_list = [1, 2, 3]
 
1279
        exception = self.assertRaises(AssertionError, self.assertLength, 2,
 
1280
            a_list)
 
1281
        self.assertEqual('Incorrect length: wanted 2, got 3 for [1, 2, 3]',
 
1282
            exception.args[0])
 
1283
 
 
1284
    def test_base_setUp_not_called_causes_failure(self):
 
1285
        class TestCaseWithBrokenSetUp(tests.TestCase):
 
1286
            def setUp(self):
 
1287
                pass # does not call TestCase.setUp
 
1288
            def test_foo(self):
 
1289
                pass
 
1290
        test = TestCaseWithBrokenSetUp('test_foo')
 
1291
        result = unittest.TestResult()
 
1292
        test.run(result)
 
1293
        self.assertFalse(result.wasSuccessful())
 
1294
        self.assertEqual(1, result.testsRun)
 
1295
 
 
1296
    def test_base_tearDown_not_called_causes_failure(self):
 
1297
        class TestCaseWithBrokenTearDown(tests.TestCase):
 
1298
            def tearDown(self):
 
1299
                pass # does not call TestCase.tearDown
 
1300
            def test_foo(self):
 
1301
                pass
 
1302
        test = TestCaseWithBrokenTearDown('test_foo')
 
1303
        result = unittest.TestResult()
 
1304
        test.run(result)
 
1305
        self.assertFalse(result.wasSuccessful())
 
1306
        self.assertEqual(1, result.testsRun)
 
1307
 
 
1308
    def test_debug_flags_sanitised(self):
 
1309
        """The bzrlib debug flags should be sanitised by setUp."""
 
1310
        if 'allow_debug' in tests.selftest_debug_flags:
 
1311
            raise tests.TestNotApplicable(
 
1312
                '-Eallow_debug option prevents debug flag sanitisation')
 
1313
        # we could set something and run a test that will check
 
1314
        # it gets santised, but this is probably sufficient for now:
 
1315
        # if someone runs the test with -Dsomething it will error.
 
1316
        flags = set()
 
1317
        if self._lock_check_thorough:
 
1318
            flags.add('strict_locks')
 
1319
        self.assertEqual(flags, bzrlib.debug.debug_flags)
 
1320
 
 
1321
    def change_selftest_debug_flags(self, new_flags):
 
1322
        self.overrideAttr(tests, 'selftest_debug_flags', set(new_flags))
 
1323
 
 
1324
    def test_allow_debug_flag(self):
 
1325
        """The -Eallow_debug flag prevents bzrlib.debug.debug_flags from being
 
1326
        sanitised (i.e. cleared) before running a test.
 
1327
        """
 
1328
        self.change_selftest_debug_flags(set(['allow_debug']))
 
1329
        bzrlib.debug.debug_flags = set(['a-flag'])
 
1330
        class TestThatRecordsFlags(tests.TestCase):
 
1331
            def test_foo(nested_self):
 
1332
                self.flags = set(bzrlib.debug.debug_flags)
 
1333
        test = TestThatRecordsFlags('test_foo')
 
1334
        test.run(self.make_test_result())
 
1335
        flags = set(['a-flag'])
 
1336
        if 'disable_lock_checks' not in tests.selftest_debug_flags:
 
1337
            flags.add('strict_locks')
 
1338
        self.assertEqual(flags, self.flags)
 
1339
 
 
1340
    def test_disable_lock_checks(self):
 
1341
        """The -Edisable_lock_checks flag disables thorough checks."""
 
1342
        class TestThatRecordsFlags(tests.TestCase):
 
1343
            def test_foo(nested_self):
 
1344
                self.flags = set(bzrlib.debug.debug_flags)
 
1345
                self.test_lock_check_thorough = nested_self._lock_check_thorough
 
1346
        self.change_selftest_debug_flags(set())
 
1347
        test = TestThatRecordsFlags('test_foo')
 
1348
        test.run(self.make_test_result())
 
1349
        # By default we do strict lock checking and thorough lock/unlock
 
1350
        # tracking.
 
1351
        self.assertTrue(self.test_lock_check_thorough)
 
1352
        self.assertEqual(set(['strict_locks']), self.flags)
 
1353
        # Now set the disable_lock_checks flag, and show that this changed.
 
1354
        self.change_selftest_debug_flags(set(['disable_lock_checks']))
 
1355
        test = TestThatRecordsFlags('test_foo')
 
1356
        test.run(self.make_test_result())
 
1357
        self.assertFalse(self.test_lock_check_thorough)
 
1358
        self.assertEqual(set(), self.flags)
 
1359
 
 
1360
    def test_this_fails_strict_lock_check(self):
 
1361
        class TestThatRecordsFlags(tests.TestCase):
 
1362
            def test_foo(nested_self):
 
1363
                self.flags1 = set(bzrlib.debug.debug_flags)
 
1364
                self.thisFailsStrictLockCheck()
 
1365
                self.flags2 = set(bzrlib.debug.debug_flags)
 
1366
        # Make sure lock checking is active
 
1367
        self.change_selftest_debug_flags(set())
 
1368
        test = TestThatRecordsFlags('test_foo')
 
1369
        test.run(self.make_test_result())
 
1370
        self.assertEqual(set(['strict_locks']), self.flags1)
 
1371
        self.assertEqual(set(), self.flags2)
 
1372
 
 
1373
    def test_debug_flags_restored(self):
 
1374
        """The bzrlib debug flags should be restored to their original state
 
1375
        after the test was run, even if allow_debug is set.
 
1376
        """
 
1377
        self.change_selftest_debug_flags(set(['allow_debug']))
 
1378
        # Now run a test that modifies debug.debug_flags.
 
1379
        bzrlib.debug.debug_flags = set(['original-state'])
 
1380
        class TestThatModifiesFlags(tests.TestCase):
 
1381
            def test_foo(self):
 
1382
                bzrlib.debug.debug_flags = set(['modified'])
 
1383
        test = TestThatModifiesFlags('test_foo')
 
1384
        test.run(self.make_test_result())
 
1385
        self.assertEqual(set(['original-state']), bzrlib.debug.debug_flags)
 
1386
 
 
1387
    def make_test_result(self):
 
1388
        """Get a test result that writes to the test log file."""
 
1389
        return tests.TextTestResult(self._log_file, descriptions=0, verbosity=1)
 
1390
 
 
1391
    def inner_test(self):
 
1392
        # the inner child test
 
1393
        note("inner_test")
 
1394
 
 
1395
    def outer_child(self):
 
1396
        # the outer child test
 
1397
        note("outer_start")
 
1398
        self.inner_test = TestTestCase("inner_child")
 
1399
        result = self.make_test_result()
 
1400
        self.inner_test.run(result)
 
1401
        note("outer finish")
 
1402
        self.addCleanup(osutils.delete_any, self._log_file_name)
 
1403
 
 
1404
    def test_trace_nesting(self):
 
1405
        # this tests that each test case nests its trace facility correctly.
 
1406
        # we do this by running a test case manually. That test case (A)
 
1407
        # should setup a new log, log content to it, setup a child case (B),
 
1408
        # which should log independently, then case (A) should log a trailer
 
1409
        # and return.
 
1410
        # we do two nested children so that we can verify the state of the
 
1411
        # logs after the outer child finishes is correct, which a bad clean
 
1412
        # up routine in tearDown might trigger a fault in our test with only
 
1413
        # one child, we should instead see the bad result inside our test with
 
1414
        # the two children.
 
1415
        # the outer child test
 
1416
        original_trace = bzrlib.trace._trace_file
 
1417
        outer_test = TestTestCase("outer_child")
 
1418
        result = self.make_test_result()
 
1419
        outer_test.run(result)
 
1420
        self.assertEqual(original_trace, bzrlib.trace._trace_file)
 
1421
 
 
1422
    def method_that_times_a_bit_twice(self):
 
1423
        # call self.time twice to ensure it aggregates
 
1424
        self.time(time.sleep, 0.007)
 
1425
        self.time(time.sleep, 0.007)
 
1426
 
 
1427
    def test_time_creates_benchmark_in_result(self):
 
1428
        """Test that the TestCase.time() method accumulates a benchmark time."""
 
1429
        sample_test = TestTestCase("method_that_times_a_bit_twice")
 
1430
        output_stream = StringIO()
 
1431
        result = bzrlib.tests.VerboseTestResult(
 
1432
            output_stream,
 
1433
            descriptions=0,
 
1434
            verbosity=2)
 
1435
        sample_test.run(result)
 
1436
        self.assertContainsRe(
 
1437
            output_stream.getvalue(),
 
1438
            r"\d+ms\*\n$")
 
1439
 
 
1440
    def test_hooks_sanitised(self):
 
1441
        """The bzrlib hooks should be sanitised by setUp."""
 
1442
        # Note this test won't fail with hooks that the core library doesn't
 
1443
        # use - but it trigger with a plugin that adds hooks, so its still a
 
1444
        # useful warning in that case.
 
1445
        self.assertEqual(bzrlib.branch.BranchHooks(), bzrlib.branch.Branch.hooks)
 
1446
        self.assertEqual(
 
1447
            bzrlib.smart.server.SmartServerHooks(),
 
1448
            bzrlib.smart.server.SmartTCPServer.hooks)
 
1449
        self.assertEqual(
 
1450
            bzrlib.commands.CommandHooks(), bzrlib.commands.Command.hooks)
 
1451
 
 
1452
    def test__gather_lsprof_in_benchmarks(self):
 
1453
        """When _gather_lsprof_in_benchmarks is on, accumulate profile data.
 
1454
 
 
1455
        Each self.time() call is individually and separately profiled.
 
1456
        """
 
1457
        self.requireFeature(test_lsprof.LSProfFeature)
 
1458
        # overrides the class member with an instance member so no cleanup
 
1459
        # needed.
 
1460
        self._gather_lsprof_in_benchmarks = True
 
1461
        self.time(time.sleep, 0.000)
 
1462
        self.time(time.sleep, 0.003)
 
1463
        self.assertEqual(2, len(self._benchcalls))
 
1464
        self.assertEqual((time.sleep, (0.000,), {}), self._benchcalls[0][0])
 
1465
        self.assertEqual((time.sleep, (0.003,), {}), self._benchcalls[1][0])
 
1466
        self.assertIsInstance(self._benchcalls[0][1], bzrlib.lsprof.Stats)
 
1467
        self.assertIsInstance(self._benchcalls[1][1], bzrlib.lsprof.Stats)
 
1468
        del self._benchcalls[:]
 
1469
 
 
1470
    def test_knownFailure(self):
 
1471
        """Self.knownFailure() should raise a KnownFailure exception."""
 
1472
        self.assertRaises(tests.KnownFailure, self.knownFailure, "A Failure")
 
1473
 
 
1474
    def test_open_bzrdir_safe_roots(self):
 
1475
        # even a memory transport should fail to open when its url isn't 
 
1476
        # permitted.
 
1477
        # Manually set one up (TestCase doesn't and shouldn't provide magic
 
1478
        # machinery)
 
1479
        transport_server = memory.MemoryServer()
 
1480
        transport_server.start_server()
 
1481
        self.addCleanup(transport_server.stop_server)
 
1482
        t = transport.get_transport(transport_server.get_url())
 
1483
        bzrdir.BzrDir.create(t.base)
 
1484
        self.assertRaises(errors.BzrError,
 
1485
            bzrdir.BzrDir.open_from_transport, t)
 
1486
        # But if we declare this as safe, we can open the bzrdir.
 
1487
        self.permit_url(t.base)
 
1488
        self._bzr_selftest_roots.append(t.base)
 
1489
        bzrdir.BzrDir.open_from_transport(t)
 
1490
 
 
1491
    def test_requireFeature_available(self):
 
1492
        """self.requireFeature(available) is a no-op."""
 
1493
        class Available(tests.Feature):
 
1494
            def _probe(self):return True
 
1495
        feature = Available()
 
1496
        self.requireFeature(feature)
 
1497
 
 
1498
    def test_requireFeature_unavailable(self):
 
1499
        """self.requireFeature(unavailable) raises UnavailableFeature."""
 
1500
        class Unavailable(tests.Feature):
 
1501
            def _probe(self):return False
 
1502
        feature = Unavailable()
 
1503
        self.assertRaises(tests.UnavailableFeature,
 
1504
                          self.requireFeature, feature)
 
1505
 
 
1506
    def test_run_no_parameters(self):
 
1507
        test = SampleTestCase('_test_pass')
 
1508
        test.run()
 
1509
 
 
1510
    def test_run_enabled_unittest_result(self):
 
1511
        """Test we revert to regular behaviour when the test is enabled."""
 
1512
        test = SampleTestCase('_test_pass')
 
1513
        class EnabledFeature(object):
 
1514
            def available(self):
 
1515
                return True
 
1516
        test._test_needs_features = [EnabledFeature()]
 
1517
        result = unittest.TestResult()
 
1518
        test.run(result)
 
1519
        self.assertEqual(1, result.testsRun)
 
1520
        self.assertEqual([], result.errors)
 
1521
        self.assertEqual([], result.failures)
 
1522
 
 
1523
    def test_run_disabled_unittest_result(self):
 
1524
        """Test our compatability for disabled tests with unittest results."""
 
1525
        test = SampleTestCase('_test_pass')
 
1526
        class DisabledFeature(object):
 
1527
            def available(self):
 
1528
                return False
 
1529
        test._test_needs_features = [DisabledFeature()]
 
1530
        result = unittest.TestResult()
 
1531
        test.run(result)
 
1532
        self.assertEqual(1, result.testsRun)
 
1533
        self.assertEqual([], result.errors)
 
1534
        self.assertEqual([], result.failures)
 
1535
 
 
1536
    def test_run_disabled_supporting_result(self):
 
1537
        """Test disabled tests behaviour with support aware results."""
 
1538
        test = SampleTestCase('_test_pass')
 
1539
        class DisabledFeature(object):
 
1540
            def __eq__(self, other):
 
1541
                return isinstance(other, DisabledFeature)
 
1542
            def available(self):
 
1543
                return False
 
1544
        the_feature = DisabledFeature()
 
1545
        test._test_needs_features = [the_feature]
 
1546
        class InstrumentedTestResult(unittest.TestResult):
 
1547
            def __init__(self):
 
1548
                unittest.TestResult.__init__(self)
 
1549
                self.calls = []
 
1550
            def startTest(self, test):
 
1551
                self.calls.append(('startTest', test))
 
1552
            def stopTest(self, test):
 
1553
                self.calls.append(('stopTest', test))
 
1554
            def addNotSupported(self, test, feature):
 
1555
                self.calls.append(('addNotSupported', test, feature))
 
1556
        result = InstrumentedTestResult()
 
1557
        test.run(result)
 
1558
        case = result.calls[0][1]
 
1559
        self.assertEqual([
 
1560
            ('startTest', case),
 
1561
            ('addNotSupported', case, the_feature),
 
1562
            ('stopTest', case),
 
1563
            ],
 
1564
            result.calls)
 
1565
 
 
1566
    def test_start_server_registers_url(self):
 
1567
        transport_server = memory.MemoryServer()
 
1568
        # A little strict, but unlikely to be changed soon.
 
1569
        self.assertEqual([], self._bzr_selftest_roots)
 
1570
        self.start_server(transport_server)
 
1571
        self.assertSubset([transport_server.get_url()],
 
1572
            self._bzr_selftest_roots)
 
1573
 
 
1574
    def test_assert_list_raises_on_generator(self):
 
1575
        def generator_which_will_raise():
 
1576
            # This will not raise until after the first yield
 
1577
            yield 1
 
1578
            raise _TestException()
 
1579
 
 
1580
        e = self.assertListRaises(_TestException, generator_which_will_raise)
 
1581
        self.assertIsInstance(e, _TestException)
 
1582
 
 
1583
        e = self.assertListRaises(Exception, generator_which_will_raise)
 
1584
        self.assertIsInstance(e, _TestException)
 
1585
 
 
1586
    def test_assert_list_raises_on_plain(self):
 
1587
        def plain_exception():
 
1588
            raise _TestException()
 
1589
            return []
 
1590
 
 
1591
        e = self.assertListRaises(_TestException, plain_exception)
 
1592
        self.assertIsInstance(e, _TestException)
 
1593
 
 
1594
        e = self.assertListRaises(Exception, plain_exception)
 
1595
        self.assertIsInstance(e, _TestException)
 
1596
 
 
1597
    def test_assert_list_raises_assert_wrong_exception(self):
 
1598
        class _NotTestException(Exception):
 
1599
            pass
 
1600
 
 
1601
        def wrong_exception():
 
1602
            raise _NotTestException()
 
1603
 
 
1604
        def wrong_exception_generator():
 
1605
            yield 1
 
1606
            yield 2
 
1607
            raise _NotTestException()
 
1608
 
 
1609
        # Wrong exceptions are not intercepted
 
1610
        self.assertRaises(_NotTestException,
 
1611
            self.assertListRaises, _TestException, wrong_exception)
 
1612
        self.assertRaises(_NotTestException,
 
1613
            self.assertListRaises, _TestException, wrong_exception_generator)
 
1614
 
 
1615
    def test_assert_list_raises_no_exception(self):
 
1616
        def success():
 
1617
            return []
 
1618
 
 
1619
        def success_generator():
 
1620
            yield 1
 
1621
            yield 2
 
1622
 
 
1623
        self.assertRaises(AssertionError,
 
1624
            self.assertListRaises, _TestException, success)
 
1625
 
 
1626
        self.assertRaises(AssertionError,
 
1627
            self.assertListRaises, _TestException, success_generator)
 
1628
 
 
1629
    def test_overrideAttr_without_value(self):
 
1630
        self.test_attr = 'original' # Define a test attribute
 
1631
        obj = self # Make 'obj' visible to the embedded test
 
1632
        class Test(tests.TestCase):
 
1633
 
 
1634
            def setUp(self):
 
1635
                tests.TestCase.setUp(self)
 
1636
                self.orig = self.overrideAttr(obj, 'test_attr')
 
1637
 
 
1638
            def test_value(self):
 
1639
                self.assertEqual('original', self.orig)
 
1640
                self.assertEqual('original', obj.test_attr)
 
1641
                obj.test_attr = 'modified'
 
1642
                self.assertEqual('modified', obj.test_attr)
 
1643
 
 
1644
        test = Test('test_value')
 
1645
        test.run(unittest.TestResult())
 
1646
        self.assertEqual('original', obj.test_attr)
 
1647
 
 
1648
    def test_overrideAttr_with_value(self):
 
1649
        self.test_attr = 'original' # Define a test attribute
 
1650
        obj = self # Make 'obj' visible to the embedded test
 
1651
        class Test(tests.TestCase):
 
1652
 
 
1653
            def setUp(self):
 
1654
                tests.TestCase.setUp(self)
 
1655
                self.orig = self.overrideAttr(obj, 'test_attr', new='modified')
 
1656
 
 
1657
            def test_value(self):
 
1658
                self.assertEqual('original', self.orig)
 
1659
                self.assertEqual('modified', obj.test_attr)
 
1660
 
 
1661
        test = Test('test_value')
 
1662
        test.run(unittest.TestResult())
 
1663
        self.assertEqual('original', obj.test_attr)
 
1664
 
 
1665
 
 
1666
class _MissingFeature(tests.Feature):
 
1667
    def _probe(self):
 
1668
        return False
 
1669
missing_feature = _MissingFeature()
 
1670
 
 
1671
 
 
1672
def _get_test(name):
 
1673
    """Get an instance of a specific example test.
 
1674
 
 
1675
    We protect this in a function so that they don't auto-run in the test
 
1676
    suite.
 
1677
    """
 
1678
 
 
1679
    class ExampleTests(tests.TestCase):
 
1680
 
 
1681
        def test_fail(self):
 
1682
            mutter('this was a failing test')
 
1683
            self.fail('this test will fail')
 
1684
 
 
1685
        def test_error(self):
 
1686
            mutter('this test errored')
 
1687
            raise RuntimeError('gotcha')
 
1688
 
 
1689
        def test_missing_feature(self):
 
1690
            mutter('missing the feature')
 
1691
            self.requireFeature(missing_feature)
 
1692
 
 
1693
        def test_skip(self):
 
1694
            mutter('this test will be skipped')
 
1695
            raise tests.TestSkipped('reason')
 
1696
 
 
1697
        def test_success(self):
 
1698
            mutter('this test succeeds')
 
1699
 
 
1700
        def test_xfail(self):
 
1701
            mutter('test with expected failure')
 
1702
            self.knownFailure('this_fails')
 
1703
 
 
1704
        def test_unexpected_success(self):
 
1705
            mutter('test with unexpected success')
 
1706
            self.expectFailure('should_fail', lambda: None)
 
1707
 
 
1708
    return ExampleTests(name)
 
1709
 
 
1710
 
 
1711
class TestTestCaseLogDetails(tests.TestCase):
 
1712
 
 
1713
    def _run_test(self, test_name):
 
1714
        test = _get_test(test_name)
 
1715
        result = testtools.TestResult()
 
1716
        test.run(result)
 
1717
        return result
 
1718
 
 
1719
    def test_fail_has_log(self):
 
1720
        result = self._run_test('test_fail')
 
1721
        self.assertEqual(1, len(result.failures))
 
1722
        result_content = result.failures[0][1]
 
1723
        self.assertContainsRe(result_content, 'Text attachment: log')
 
1724
        self.assertContainsRe(result_content, 'this was a failing test')
 
1725
 
 
1726
    def test_error_has_log(self):
 
1727
        result = self._run_test('test_error')
 
1728
        self.assertEqual(1, len(result.errors))
 
1729
        result_content = result.errors[0][1]
 
1730
        self.assertContainsRe(result_content, 'Text attachment: log')
 
1731
        self.assertContainsRe(result_content, 'this test errored')
 
1732
 
 
1733
    def test_skip_has_no_log(self):
 
1734
        result = self._run_test('test_skip')
 
1735
        self.assertEqual(['reason'], result.skip_reasons.keys())
 
1736
        skips = result.skip_reasons['reason']
 
1737
        self.assertEqual(1, len(skips))
 
1738
        test = skips[0]
 
1739
        self.assertFalse('log' in test.getDetails())
 
1740
 
 
1741
    def test_missing_feature_has_no_log(self):
 
1742
        # testtools doesn't know about addNotSupported, so it just gets
 
1743
        # considered as a skip
 
1744
        result = self._run_test('test_missing_feature')
 
1745
        self.assertEqual([missing_feature], result.skip_reasons.keys())
 
1746
        skips = result.skip_reasons[missing_feature]
 
1747
        self.assertEqual(1, len(skips))
 
1748
        test = skips[0]
 
1749
        self.assertFalse('log' in test.getDetails())
 
1750
 
 
1751
    def test_xfail_has_no_log(self):
 
1752
        result = self._run_test('test_xfail')
 
1753
        self.assertEqual(1, len(result.expectedFailures))
 
1754
        result_content = result.expectedFailures[0][1]
 
1755
        self.assertNotContainsRe(result_content, 'Text attachment: log')
 
1756
        self.assertNotContainsRe(result_content, 'test with expected failure')
 
1757
 
 
1758
    def test_unexpected_success_has_log(self):
 
1759
        result = self._run_test('test_unexpected_success')
 
1760
        self.assertEqual(1, len(result.unexpectedSuccesses))
 
1761
        # Inconsistency, unexpectedSuccesses is a list of tests,
 
1762
        # expectedFailures is a list of reasons?
 
1763
        test = result.unexpectedSuccesses[0]
 
1764
        details = test.getDetails()
 
1765
        self.assertTrue('log' in details)
 
1766
 
 
1767
 
 
1768
class TestTestCloning(tests.TestCase):
 
1769
    """Tests that test cloning of TestCases (as used by multiply_tests)."""
 
1770
 
 
1771
    def test_cloned_testcase_does_not_share_details(self):
 
1772
        """A TestCase cloned with clone_test does not share mutable attributes
 
1773
        such as details or cleanups.
 
1774
        """
 
1775
        class Test(tests.TestCase):
 
1776
            def test_foo(self):
 
1777
                self.addDetail('foo', Content('text/plain', lambda: 'foo'))
 
1778
        orig_test = Test('test_foo')
 
1779
        cloned_test = tests.clone_test(orig_test, orig_test.id() + '(cloned)')
 
1780
        orig_test.run(unittest.TestResult())
 
1781
        self.assertEqual('foo', orig_test.getDetails()['foo'].iter_bytes())
 
1782
        self.assertEqual(None, cloned_test.getDetails().get('foo'))
 
1783
 
 
1784
    def test_double_apply_scenario_preserves_first_scenario(self):
 
1785
        """Applying two levels of scenarios to a test preserves the attributes
 
1786
        added by both scenarios.
 
1787
        """
 
1788
        class Test(tests.TestCase):
 
1789
            def test_foo(self):
 
1790
                pass
 
1791
        test = Test('test_foo')
 
1792
        scenarios_x = [('x=1', {'x': 1}), ('x=2', {'x': 2})]
 
1793
        scenarios_y = [('y=1', {'y': 1}), ('y=2', {'y': 2})]
 
1794
        suite = tests.multiply_tests(test, scenarios_x, unittest.TestSuite())
 
1795
        suite = tests.multiply_tests(suite, scenarios_y, unittest.TestSuite())
 
1796
        all_tests = list(tests.iter_suite_tests(suite))
 
1797
        self.assertLength(4, all_tests)
 
1798
        all_xys = sorted((t.x, t.y) for t in all_tests)
 
1799
        self.assertEqual([(1, 1), (1, 2), (2, 1), (2, 2)], all_xys)
 
1800
 
 
1801
 
 
1802
# NB: Don't delete this; it's not actually from 0.11!
 
1803
@deprecated_function(deprecated_in((0, 11, 0)))
 
1804
def sample_deprecated_function():
 
1805
    """A deprecated function to test applyDeprecated with."""
 
1806
    return 2
 
1807
 
 
1808
 
 
1809
def sample_undeprecated_function(a_param):
 
1810
    """A undeprecated function to test applyDeprecated with."""
 
1811
 
 
1812
 
 
1813
class ApplyDeprecatedHelper(object):
 
1814
    """A helper class for ApplyDeprecated tests."""
 
1815
 
 
1816
    @deprecated_method(deprecated_in((0, 11, 0)))
 
1817
    def sample_deprecated_method(self, param_one):
 
1818
        """A deprecated method for testing with."""
 
1819
        return param_one
 
1820
 
 
1821
    def sample_normal_method(self):
 
1822
        """A undeprecated method."""
 
1823
 
 
1824
    @deprecated_method(deprecated_in((0, 10, 0)))
 
1825
    def sample_nested_deprecation(self):
 
1826
        return sample_deprecated_function()
 
1827
 
 
1828
 
 
1829
class TestExtraAssertions(tests.TestCase):
 
1830
    """Tests for new test assertions in bzrlib test suite"""
 
1831
 
 
1832
    def test_assert_isinstance(self):
 
1833
        self.assertIsInstance(2, int)
 
1834
        self.assertIsInstance(u'', basestring)
 
1835
        e = self.assertRaises(AssertionError, self.assertIsInstance, None, int)
 
1836
        self.assertEquals(str(e),
 
1837
            "None is an instance of <type 'NoneType'> rather than <type 'int'>")
 
1838
        self.assertRaises(AssertionError, self.assertIsInstance, 23.3, int)
 
1839
        e = self.assertRaises(AssertionError,
 
1840
            self.assertIsInstance, None, int, "it's just not")
 
1841
        self.assertEquals(str(e),
 
1842
            "None is an instance of <type 'NoneType'> rather than <type 'int'>"
 
1843
            ": it's just not")
 
1844
 
 
1845
    def test_assertEndsWith(self):
 
1846
        self.assertEndsWith('foo', 'oo')
 
1847
        self.assertRaises(AssertionError, self.assertEndsWith, 'o', 'oo')
 
1848
 
 
1849
    def test_assertEqualDiff(self):
 
1850
        e = self.assertRaises(AssertionError,
 
1851
                              self.assertEqualDiff, '', '\n')
 
1852
        self.assertEquals(str(e),
 
1853
                          # Don't blink ! The '+' applies to the second string
 
1854
                          'first string is missing a final newline.\n+ \n')
 
1855
        e = self.assertRaises(AssertionError,
 
1856
                              self.assertEqualDiff, '\n', '')
 
1857
        self.assertEquals(str(e),
 
1858
                          # Don't blink ! The '-' applies to the second string
 
1859
                          'second string is missing a final newline.\n- \n')
 
1860
 
 
1861
 
 
1862
class TestDeprecations(tests.TestCase):
 
1863
 
 
1864
    def test_applyDeprecated_not_deprecated(self):
 
1865
        sample_object = ApplyDeprecatedHelper()
 
1866
        # calling an undeprecated callable raises an assertion
 
1867
        self.assertRaises(AssertionError, self.applyDeprecated,
 
1868
            deprecated_in((0, 11, 0)),
 
1869
            sample_object.sample_normal_method)
 
1870
        self.assertRaises(AssertionError, self.applyDeprecated,
 
1871
            deprecated_in((0, 11, 0)),
 
1872
            sample_undeprecated_function, "a param value")
 
1873
        # calling a deprecated callable (function or method) with the wrong
 
1874
        # expected deprecation fails.
 
1875
        self.assertRaises(AssertionError, self.applyDeprecated,
 
1876
            deprecated_in((0, 10, 0)),
 
1877
            sample_object.sample_deprecated_method, "a param value")
 
1878
        self.assertRaises(AssertionError, self.applyDeprecated,
 
1879
            deprecated_in((0, 10, 0)),
 
1880
            sample_deprecated_function)
 
1881
        # calling a deprecated callable (function or method) with the right
 
1882
        # expected deprecation returns the functions result.
 
1883
        self.assertEqual("a param value",
 
1884
            self.applyDeprecated(deprecated_in((0, 11, 0)),
 
1885
            sample_object.sample_deprecated_method, "a param value"))
 
1886
        self.assertEqual(2, self.applyDeprecated(deprecated_in((0, 11, 0)),
 
1887
            sample_deprecated_function))
 
1888
        # calling a nested deprecation with the wrong deprecation version
 
1889
        # fails even if a deeper nested function was deprecated with the
 
1890
        # supplied version.
 
1891
        self.assertRaises(AssertionError, self.applyDeprecated,
 
1892
            deprecated_in((0, 11, 0)), sample_object.sample_nested_deprecation)
 
1893
        # calling a nested deprecation with the right deprecation value
 
1894
        # returns the calls result.
 
1895
        self.assertEqual(2, self.applyDeprecated(deprecated_in((0, 10, 0)),
 
1896
            sample_object.sample_nested_deprecation))
 
1897
 
 
1898
    def test_callDeprecated(self):
 
1899
        def testfunc(be_deprecated, result=None):
 
1900
            if be_deprecated is True:
 
1901
                symbol_versioning.warn('i am deprecated', DeprecationWarning,
 
1902
                                       stacklevel=1)
 
1903
            return result
 
1904
        result = self.callDeprecated(['i am deprecated'], testfunc, True)
 
1905
        self.assertIs(None, result)
 
1906
        result = self.callDeprecated([], testfunc, False, 'result')
 
1907
        self.assertEqual('result', result)
 
1908
        self.callDeprecated(['i am deprecated'], testfunc, be_deprecated=True)
 
1909
        self.callDeprecated([], testfunc, be_deprecated=False)
 
1910
 
 
1911
 
 
1912
class TestWarningTests(tests.TestCase):
 
1913
    """Tests for calling methods that raise warnings."""
 
1914
 
 
1915
    def test_callCatchWarnings(self):
 
1916
        def meth(a, b):
 
1917
            warnings.warn("this is your last warning")
 
1918
            return a + b
 
1919
        wlist, result = self.callCatchWarnings(meth, 1, 2)
 
1920
        self.assertEquals(3, result)
 
1921
        # would like just to compare them, but UserWarning doesn't implement
 
1922
        # eq well
 
1923
        w0, = wlist
 
1924
        self.assertIsInstance(w0, UserWarning)
 
1925
        self.assertEquals("this is your last warning", str(w0))
 
1926
 
 
1927
 
 
1928
class TestConvenienceMakers(tests.TestCaseWithTransport):
 
1929
    """Test for the make_* convenience functions."""
 
1930
 
 
1931
    def test_make_branch_and_tree_with_format(self):
 
1932
        # we should be able to supply a format to make_branch_and_tree
 
1933
        self.make_branch_and_tree('a', format=bzrlib.bzrdir.BzrDirMetaFormat1())
 
1934
        self.assertIsInstance(bzrlib.bzrdir.BzrDir.open('a')._format,
 
1935
                              bzrlib.bzrdir.BzrDirMetaFormat1)
 
1936
 
 
1937
    def test_make_branch_and_memory_tree(self):
 
1938
        # we should be able to get a new branch and a mutable tree from
 
1939
        # TestCaseWithTransport
 
1940
        tree = self.make_branch_and_memory_tree('a')
 
1941
        self.assertIsInstance(tree, bzrlib.memorytree.MemoryTree)
 
1942
 
 
1943
    def test_make_tree_for_local_vfs_backed_transport(self):
 
1944
        # make_branch_and_tree has to use local branch and repositories
 
1945
        # when the vfs transport and local disk are colocated, even if
 
1946
        # a different transport is in use for url generation.
 
1947
        self.transport_server = test_server.FakeVFATServer
 
1948
        self.assertFalse(self.get_url('t1').startswith('file://'))
 
1949
        tree = self.make_branch_and_tree('t1')
 
1950
        base = tree.bzrdir.root_transport.base
 
1951
        self.assertStartsWith(base, 'file://')
 
1952
        self.assertEquals(tree.bzrdir.root_transport,
 
1953
                tree.branch.bzrdir.root_transport)
 
1954
        self.assertEquals(tree.bzrdir.root_transport,
 
1955
                tree.branch.repository.bzrdir.root_transport)
 
1956
 
 
1957
 
 
1958
class SelfTestHelper(object):
 
1959
 
 
1960
    def run_selftest(self, **kwargs):
 
1961
        """Run selftest returning its output."""
 
1962
        output = StringIO()
 
1963
        old_transport = bzrlib.tests.default_transport
 
1964
        old_root = tests.TestCaseWithMemoryTransport.TEST_ROOT
 
1965
        tests.TestCaseWithMemoryTransport.TEST_ROOT = None
 
1966
        try:
 
1967
            self.assertEqual(True, tests.selftest(stream=output, **kwargs))
 
1968
        finally:
 
1969
            bzrlib.tests.default_transport = old_transport
 
1970
            tests.TestCaseWithMemoryTransport.TEST_ROOT = old_root
 
1971
        output.seek(0)
 
1972
        return output
 
1973
 
 
1974
 
 
1975
class TestSelftest(tests.TestCase, SelfTestHelper):
 
1976
    """Tests of bzrlib.tests.selftest."""
 
1977
 
 
1978
    def test_selftest_benchmark_parameter_invokes_test_suite__benchmark__(self):
 
1979
        factory_called = []
 
1980
        def factory():
 
1981
            factory_called.append(True)
 
1982
            return TestUtil.TestSuite()
 
1983
        out = StringIO()
 
1984
        err = StringIO()
 
1985
        self.apply_redirected(out, err, None, bzrlib.tests.selftest,
 
1986
            test_suite_factory=factory)
 
1987
        self.assertEqual([True], factory_called)
 
1988
 
 
1989
    def factory(self):
 
1990
        """A test suite factory."""
 
1991
        class Test(tests.TestCase):
 
1992
            def a(self):
 
1993
                pass
 
1994
            def b(self):
 
1995
                pass
 
1996
            def c(self):
 
1997
                pass
 
1998
        return TestUtil.TestSuite([Test("a"), Test("b"), Test("c")])
 
1999
 
 
2000
    def test_list_only(self):
 
2001
        output = self.run_selftest(test_suite_factory=self.factory,
 
2002
            list_only=True)
 
2003
        self.assertEqual(3, len(output.readlines()))
 
2004
 
 
2005
    def test_list_only_filtered(self):
 
2006
        output = self.run_selftest(test_suite_factory=self.factory,
 
2007
            list_only=True, pattern="Test.b")
 
2008
        self.assertEndsWith(output.getvalue(), "Test.b\n")
 
2009
        self.assertLength(1, output.readlines())
 
2010
 
 
2011
    def test_list_only_excludes(self):
 
2012
        output = self.run_selftest(test_suite_factory=self.factory,
 
2013
            list_only=True, exclude_pattern="Test.b")
 
2014
        self.assertNotContainsRe("Test.b", output.getvalue())
 
2015
        self.assertLength(2, output.readlines())
 
2016
 
 
2017
    def test_lsprof_tests(self):
 
2018
        self.requireFeature(test_lsprof.LSProfFeature)
 
2019
        calls = []
 
2020
        class Test(object):
 
2021
            def __call__(test, result):
 
2022
                test.run(result)
 
2023
            def run(test, result):
 
2024
                self.assertIsInstance(result, ExtendedToOriginalDecorator)
 
2025
                calls.append("called")
 
2026
            def countTestCases(self):
 
2027
                return 1
 
2028
        self.run_selftest(test_suite_factory=Test, lsprof_tests=True)
 
2029
        self.assertLength(1, calls)
 
2030
 
 
2031
    def test_random(self):
 
2032
        # test randomising by listing a number of tests.
 
2033
        output_123 = self.run_selftest(test_suite_factory=self.factory,
 
2034
            list_only=True, random_seed="123")
 
2035
        output_234 = self.run_selftest(test_suite_factory=self.factory,
 
2036
            list_only=True, random_seed="234")
 
2037
        self.assertNotEqual(output_123, output_234)
 
2038
        # "Randominzing test order..\n\n
 
2039
        self.assertLength(5, output_123.readlines())
 
2040
        self.assertLength(5, output_234.readlines())
 
2041
 
 
2042
    def test_random_reuse_is_same_order(self):
 
2043
        # test randomising by listing a number of tests.
 
2044
        expected = self.run_selftest(test_suite_factory=self.factory,
 
2045
            list_only=True, random_seed="123")
 
2046
        repeated = self.run_selftest(test_suite_factory=self.factory,
 
2047
            list_only=True, random_seed="123")
 
2048
        self.assertEqual(expected.getvalue(), repeated.getvalue())
 
2049
 
 
2050
    def test_runner_class(self):
 
2051
        self.requireFeature(features.subunit)
 
2052
        from subunit import ProtocolTestCase
 
2053
        stream = self.run_selftest(runner_class=tests.SubUnitBzrRunner,
 
2054
            test_suite_factory=self.factory)
 
2055
        test = ProtocolTestCase(stream)
 
2056
        result = unittest.TestResult()
 
2057
        test.run(result)
 
2058
        self.assertEqual(3, result.testsRun)
 
2059
 
 
2060
    def test_starting_with_single_argument(self):
 
2061
        output = self.run_selftest(test_suite_factory=self.factory,
 
2062
            starting_with=['bzrlib.tests.test_selftest.Test.a'],
 
2063
            list_only=True)
 
2064
        self.assertEqual('bzrlib.tests.test_selftest.Test.a\n',
 
2065
            output.getvalue())
 
2066
 
 
2067
    def test_starting_with_multiple_argument(self):
 
2068
        output = self.run_selftest(test_suite_factory=self.factory,
 
2069
            starting_with=['bzrlib.tests.test_selftest.Test.a',
 
2070
                'bzrlib.tests.test_selftest.Test.b'],
 
2071
            list_only=True)
 
2072
        self.assertEqual('bzrlib.tests.test_selftest.Test.a\n'
 
2073
            'bzrlib.tests.test_selftest.Test.b\n',
 
2074
            output.getvalue())
 
2075
 
 
2076
    def check_transport_set(self, transport_server):
 
2077
        captured_transport = []
 
2078
        def seen_transport(a_transport):
 
2079
            captured_transport.append(a_transport)
 
2080
        class Capture(tests.TestCase):
 
2081
            def a(self):
 
2082
                seen_transport(bzrlib.tests.default_transport)
 
2083
        def factory():
 
2084
            return TestUtil.TestSuite([Capture("a")])
 
2085
        self.run_selftest(transport=transport_server, test_suite_factory=factory)
 
2086
        self.assertEqual(transport_server, captured_transport[0])
 
2087
 
 
2088
    def test_transport_sftp(self):
 
2089
        self.requireFeature(features.paramiko)
 
2090
        from bzrlib.tests import stub_sftp
 
2091
        self.check_transport_set(stub_sftp.SFTPAbsoluteServer)
 
2092
 
 
2093
    def test_transport_memory(self):
 
2094
        self.check_transport_set(memory.MemoryServer)
 
2095
 
 
2096
 
 
2097
class TestSelftestWithIdList(tests.TestCaseInTempDir, SelfTestHelper):
 
2098
    # Does IO: reads test.list
 
2099
 
 
2100
    def test_load_list(self):
 
2101
        # Provide a list with one test - this test.
 
2102
        test_id_line = '%s\n' % self.id()
 
2103
        self.build_tree_contents([('test.list', test_id_line)])
 
2104
        # And generate a list of the tests in  the suite.
 
2105
        stream = self.run_selftest(load_list='test.list', list_only=True)
 
2106
        self.assertEqual(test_id_line, stream.getvalue())
 
2107
 
 
2108
    def test_load_unknown(self):
 
2109
        # Provide a list with one test - this test.
 
2110
        # And generate a list of the tests in  the suite.
 
2111
        err = self.assertRaises(errors.NoSuchFile, self.run_selftest,
 
2112
            load_list='missing file name', list_only=True)
 
2113
 
 
2114
 
 
2115
class TestSubunitLogDetails(tests.TestCase, SelfTestHelper):
 
2116
 
 
2117
    _test_needs_features = [features.subunit]
 
2118
 
 
2119
    def run_subunit_stream(self, test_name):
 
2120
        from subunit import ProtocolTestCase
 
2121
        def factory():
 
2122
            return TestUtil.TestSuite([_get_test(test_name)])
 
2123
        stream = self.run_selftest(runner_class=tests.SubUnitBzrRunner,
 
2124
            test_suite_factory=factory)
 
2125
        test = ProtocolTestCase(stream)
 
2126
        result = testtools.TestResult()
 
2127
        test.run(result)
 
2128
        content = stream.getvalue()
 
2129
        return content, result
 
2130
 
 
2131
    def test_fail_has_log(self):
 
2132
        content, result = self.run_subunit_stream('test_fail')
 
2133
        self.assertEqual(1, len(result.failures))
 
2134
        self.assertContainsRe(content, '(?m)^log$')
 
2135
        self.assertContainsRe(content, 'this test will fail')
 
2136
 
 
2137
    def test_error_has_log(self):
 
2138
        content, result = self.run_subunit_stream('test_error')
 
2139
        self.assertContainsRe(content, '(?m)^log$')
 
2140
        self.assertContainsRe(content, 'this test errored')
 
2141
 
 
2142
    def test_skip_has_no_log(self):
 
2143
        content, result = self.run_subunit_stream('test_skip')
 
2144
        self.assertNotContainsRe(content, '(?m)^log$')
 
2145
        self.assertNotContainsRe(content, 'this test will be skipped')
 
2146
        self.assertEqual(['reason'], result.skip_reasons.keys())
 
2147
        skips = result.skip_reasons['reason']
 
2148
        self.assertEqual(1, len(skips))
 
2149
        test = skips[0]
 
2150
        # RemotedTestCase doesn't preserve the "details"
 
2151
        ## self.assertFalse('log' in test.getDetails())
 
2152
 
 
2153
    def test_missing_feature_has_no_log(self):
 
2154
        content, result = self.run_subunit_stream('test_missing_feature')
 
2155
        self.assertNotContainsRe(content, '(?m)^log$')
 
2156
        self.assertNotContainsRe(content, 'missing the feature')
 
2157
        self.assertEqual(['_MissingFeature\n'], result.skip_reasons.keys())
 
2158
        skips = result.skip_reasons['_MissingFeature\n']
 
2159
        self.assertEqual(1, len(skips))
 
2160
        test = skips[0]
 
2161
        # RemotedTestCase doesn't preserve the "details"
 
2162
        ## self.assertFalse('log' in test.getDetails())
 
2163
 
 
2164
    def test_xfail_has_no_log(self):
 
2165
        content, result = self.run_subunit_stream('test_xfail')
 
2166
        self.assertNotContainsRe(content, '(?m)^log$')
 
2167
        self.assertNotContainsRe(content, 'test with expected failure')
 
2168
        self.assertEqual(1, len(result.expectedFailures))
 
2169
        result_content = result.expectedFailures[0][1]
 
2170
        self.assertNotContainsRe(result_content, 'Text attachment: log')
 
2171
        self.assertNotContainsRe(result_content, 'test with expected failure')
 
2172
 
 
2173
    def test_unexpected_success_has_log(self):
 
2174
        content, result = self.run_subunit_stream('test_unexpected_success')
 
2175
        self.assertContainsRe(content, '(?m)^log$')
 
2176
        self.assertContainsRe(content, 'test with unexpected success')
 
2177
        self.expectFailure('subunit treats "unexpectedSuccess"'
 
2178
                           ' as a plain success',
 
2179
            self.assertEqual, 1, len(result.unexpectedSuccesses))
 
2180
        self.assertEqual(1, len(result.unexpectedSuccesses))
 
2181
        test = result.unexpectedSuccesses[0]
 
2182
        # RemotedTestCase doesn't preserve the "details"
 
2183
        ## self.assertTrue('log' in test.getDetails())
 
2184
 
 
2185
    def test_success_has_no_log(self):
 
2186
        content, result = self.run_subunit_stream('test_success')
 
2187
        self.assertEqual(1, result.testsRun)
 
2188
        self.assertNotContainsRe(content, '(?m)^log$')
 
2189
        self.assertNotContainsRe(content, 'this test succeeds')
 
2190
 
 
2191
 
 
2192
class TestRunBzr(tests.TestCase):
 
2193
 
 
2194
    out = ''
 
2195
    err = ''
 
2196
 
 
2197
    def _run_bzr_core(self, argv, retcode=0, encoding=None, stdin=None,
 
2198
                         working_dir=None):
 
2199
        """Override _run_bzr_core to test how it is invoked by run_bzr.
 
2200
 
 
2201
        Attempts to run bzr from inside this class don't actually run it.
 
2202
 
 
2203
        We test how run_bzr actually invokes bzr in another location.  Here we
 
2204
        only need to test that it passes the right parameters to run_bzr.
 
2205
        """
 
2206
        self.argv = list(argv)
 
2207
        self.retcode = retcode
 
2208
        self.encoding = encoding
 
2209
        self.stdin = stdin
 
2210
        self.working_dir = working_dir
 
2211
        return self.retcode, self.out, self.err
 
2212
 
 
2213
    def test_run_bzr_error(self):
 
2214
        self.out = "It sure does!\n"
 
2215
        out, err = self.run_bzr_error(['^$'], ['rocks'], retcode=34)
 
2216
        self.assertEqual(['rocks'], self.argv)
 
2217
        self.assertEqual(34, self.retcode)
 
2218
        self.assertEqual('It sure does!\n', out)
 
2219
        self.assertEquals(out, self.out)
 
2220
        self.assertEqual('', err)
 
2221
        self.assertEquals(err, self.err)
 
2222
 
 
2223
    def test_run_bzr_error_regexes(self):
 
2224
        self.out = ''
 
2225
        self.err = "bzr: ERROR: foobarbaz is not versioned"
 
2226
        out, err = self.run_bzr_error(
 
2227
            ["bzr: ERROR: foobarbaz is not versioned"],
 
2228
            ['file-id', 'foobarbaz'])
 
2229
 
 
2230
    def test_encoding(self):
 
2231
        """Test that run_bzr passes encoding to _run_bzr_core"""
 
2232
        self.run_bzr('foo bar')
 
2233
        self.assertEqual(None, self.encoding)
 
2234
        self.assertEqual(['foo', 'bar'], self.argv)
 
2235
 
 
2236
        self.run_bzr('foo bar', encoding='baz')
 
2237
        self.assertEqual('baz', self.encoding)
 
2238
        self.assertEqual(['foo', 'bar'], self.argv)
 
2239
 
 
2240
    def test_retcode(self):
 
2241
        """Test that run_bzr passes retcode to _run_bzr_core"""
 
2242
        # Default is retcode == 0
 
2243
        self.run_bzr('foo bar')
 
2244
        self.assertEqual(0, self.retcode)
 
2245
        self.assertEqual(['foo', 'bar'], self.argv)
 
2246
 
 
2247
        self.run_bzr('foo bar', retcode=1)
 
2248
        self.assertEqual(1, self.retcode)
 
2249
        self.assertEqual(['foo', 'bar'], self.argv)
 
2250
 
 
2251
        self.run_bzr('foo bar', retcode=None)
 
2252
        self.assertEqual(None, self.retcode)
 
2253
        self.assertEqual(['foo', 'bar'], self.argv)
 
2254
 
 
2255
        self.run_bzr(['foo', 'bar'], retcode=3)
 
2256
        self.assertEqual(3, self.retcode)
 
2257
        self.assertEqual(['foo', 'bar'], self.argv)
 
2258
 
 
2259
    def test_stdin(self):
 
2260
        # test that the stdin keyword to run_bzr is passed through to
 
2261
        # _run_bzr_core as-is. We do this by overriding
 
2262
        # _run_bzr_core in this class, and then calling run_bzr,
 
2263
        # which is a convenience function for _run_bzr_core, so
 
2264
        # should invoke it.
 
2265
        self.run_bzr('foo bar', stdin='gam')
 
2266
        self.assertEqual('gam', self.stdin)
 
2267
        self.assertEqual(['foo', 'bar'], self.argv)
 
2268
 
 
2269
        self.run_bzr('foo bar', stdin='zippy')
 
2270
        self.assertEqual('zippy', self.stdin)
 
2271
        self.assertEqual(['foo', 'bar'], self.argv)
 
2272
 
 
2273
    def test_working_dir(self):
 
2274
        """Test that run_bzr passes working_dir to _run_bzr_core"""
 
2275
        self.run_bzr('foo bar')
 
2276
        self.assertEqual(None, self.working_dir)
 
2277
        self.assertEqual(['foo', 'bar'], self.argv)
 
2278
 
 
2279
        self.run_bzr('foo bar', working_dir='baz')
 
2280
        self.assertEqual('baz', self.working_dir)
 
2281
        self.assertEqual(['foo', 'bar'], self.argv)
 
2282
 
 
2283
    def test_reject_extra_keyword_arguments(self):
 
2284
        self.assertRaises(TypeError, self.run_bzr, "foo bar",
 
2285
                          error_regex=['error message'])
 
2286
 
 
2287
 
 
2288
class TestRunBzrCaptured(tests.TestCaseWithTransport):
 
2289
    # Does IO when testing the working_dir parameter.
 
2290
 
 
2291
    def apply_redirected(self, stdin=None, stdout=None, stderr=None,
 
2292
                         a_callable=None, *args, **kwargs):
 
2293
        self.stdin = stdin
 
2294
        self.factory_stdin = getattr(bzrlib.ui.ui_factory, "stdin", None)
 
2295
        self.factory = bzrlib.ui.ui_factory
 
2296
        self.working_dir = osutils.getcwd()
 
2297
        stdout.write('foo\n')
 
2298
        stderr.write('bar\n')
 
2299
        return 0
 
2300
 
 
2301
    def test_stdin(self):
 
2302
        # test that the stdin keyword to _run_bzr_core is passed through to
 
2303
        # apply_redirected as a StringIO. We do this by overriding
 
2304
        # apply_redirected in this class, and then calling _run_bzr_core,
 
2305
        # which calls apply_redirected.
 
2306
        self.run_bzr(['foo', 'bar'], stdin='gam')
 
2307
        self.assertEqual('gam', self.stdin.read())
 
2308
        self.assertTrue(self.stdin is self.factory_stdin)
 
2309
        self.run_bzr(['foo', 'bar'], stdin='zippy')
 
2310
        self.assertEqual('zippy', self.stdin.read())
 
2311
        self.assertTrue(self.stdin is self.factory_stdin)
 
2312
 
 
2313
    def test_ui_factory(self):
 
2314
        # each invocation of self.run_bzr should get its
 
2315
        # own UI factory, which is an instance of TestUIFactory,
 
2316
        # with stdin, stdout and stderr attached to the stdin,
 
2317
        # stdout and stderr of the invoked run_bzr
 
2318
        current_factory = bzrlib.ui.ui_factory
 
2319
        self.run_bzr(['foo'])
 
2320
        self.assertFalse(current_factory is self.factory)
 
2321
        self.assertNotEqual(sys.stdout, self.factory.stdout)
 
2322
        self.assertNotEqual(sys.stderr, self.factory.stderr)
 
2323
        self.assertEqual('foo\n', self.factory.stdout.getvalue())
 
2324
        self.assertEqual('bar\n', self.factory.stderr.getvalue())
 
2325
        self.assertIsInstance(self.factory, tests.TestUIFactory)
 
2326
 
 
2327
    def test_working_dir(self):
 
2328
        self.build_tree(['one/', 'two/'])
 
2329
        cwd = osutils.getcwd()
 
2330
 
 
2331
        # Default is to work in the current directory
 
2332
        self.run_bzr(['foo', 'bar'])
 
2333
        self.assertEqual(cwd, self.working_dir)
 
2334
 
 
2335
        self.run_bzr(['foo', 'bar'], working_dir=None)
 
2336
        self.assertEqual(cwd, self.working_dir)
 
2337
 
 
2338
        # The function should be run in the alternative directory
 
2339
        # but afterwards the current working dir shouldn't be changed
 
2340
        self.run_bzr(['foo', 'bar'], working_dir='one')
 
2341
        self.assertNotEqual(cwd, self.working_dir)
 
2342
        self.assertEndsWith(self.working_dir, 'one')
 
2343
        self.assertEqual(cwd, osutils.getcwd())
 
2344
 
 
2345
        self.run_bzr(['foo', 'bar'], working_dir='two')
 
2346
        self.assertNotEqual(cwd, self.working_dir)
 
2347
        self.assertEndsWith(self.working_dir, 'two')
 
2348
        self.assertEqual(cwd, osutils.getcwd())
 
2349
 
 
2350
 
 
2351
class StubProcess(object):
 
2352
    """A stub process for testing run_bzr_subprocess."""
 
2353
    
 
2354
    def __init__(self, out="", err="", retcode=0):
 
2355
        self.out = out
 
2356
        self.err = err
 
2357
        self.returncode = retcode
 
2358
 
 
2359
    def communicate(self):
 
2360
        return self.out, self.err
 
2361
 
 
2362
 
 
2363
class TestWithFakedStartBzrSubprocess(tests.TestCaseWithTransport):
 
2364
    """Base class for tests testing how we might run bzr."""
 
2365
 
 
2366
    def setUp(self):
 
2367
        tests.TestCaseWithTransport.setUp(self)
 
2368
        self.subprocess_calls = []
 
2369
 
 
2370
    def start_bzr_subprocess(self, process_args, env_changes=None,
 
2371
                             skip_if_plan_to_signal=False,
 
2372
                             working_dir=None,
 
2373
                             allow_plugins=False):
 
2374
        """capture what run_bzr_subprocess tries to do."""
 
2375
        self.subprocess_calls.append({'process_args':process_args,
 
2376
            'env_changes':env_changes,
 
2377
            'skip_if_plan_to_signal':skip_if_plan_to_signal,
 
2378
            'working_dir':working_dir, 'allow_plugins':allow_plugins})
 
2379
        return self.next_subprocess
 
2380
 
 
2381
 
 
2382
class TestRunBzrSubprocess(TestWithFakedStartBzrSubprocess):
 
2383
 
 
2384
    def assertRunBzrSubprocess(self, expected_args, process, *args, **kwargs):
 
2385
        """Run run_bzr_subprocess with args and kwargs using a stubbed process.
 
2386
 
 
2387
        Inside TestRunBzrSubprocessCommands we use a stub start_bzr_subprocess
 
2388
        that will return static results. This assertion method populates those
 
2389
        results and also checks the arguments run_bzr_subprocess generates.
 
2390
        """
 
2391
        self.next_subprocess = process
 
2392
        try:
 
2393
            result = self.run_bzr_subprocess(*args, **kwargs)
 
2394
        except:
 
2395
            self.next_subprocess = None
 
2396
            for key, expected in expected_args.iteritems():
 
2397
                self.assertEqual(expected, self.subprocess_calls[-1][key])
 
2398
            raise
 
2399
        else:
 
2400
            self.next_subprocess = None
 
2401
            for key, expected in expected_args.iteritems():
 
2402
                self.assertEqual(expected, self.subprocess_calls[-1][key])
 
2403
            return result
 
2404
 
 
2405
    def test_run_bzr_subprocess(self):
 
2406
        """The run_bzr_helper_external command behaves nicely."""
 
2407
        self.assertRunBzrSubprocess({'process_args':['--version']},
 
2408
            StubProcess(), '--version')
 
2409
        self.assertRunBzrSubprocess({'process_args':['--version']},
 
2410
            StubProcess(), ['--version'])
 
2411
        # retcode=None disables retcode checking
 
2412
        result = self.assertRunBzrSubprocess({},
 
2413
            StubProcess(retcode=3), '--version', retcode=None)
 
2414
        result = self.assertRunBzrSubprocess({},
 
2415
            StubProcess(out="is free software"), '--version')
 
2416
        self.assertContainsRe(result[0], 'is free software')
 
2417
        # Running a subcommand that is missing errors
 
2418
        self.assertRaises(AssertionError, self.assertRunBzrSubprocess,
 
2419
            {'process_args':['--versionn']}, StubProcess(retcode=3),
 
2420
            '--versionn')
 
2421
        # Unless it is told to expect the error from the subprocess
 
2422
        result = self.assertRunBzrSubprocess({},
 
2423
            StubProcess(retcode=3), '--versionn', retcode=3)
 
2424
        # Or to ignore retcode checking
 
2425
        result = self.assertRunBzrSubprocess({},
 
2426
            StubProcess(err="unknown command", retcode=3), '--versionn',
 
2427
            retcode=None)
 
2428
        self.assertContainsRe(result[1], 'unknown command')
 
2429
 
 
2430
    def test_env_change_passes_through(self):
 
2431
        self.assertRunBzrSubprocess(
 
2432
            {'env_changes':{'new':'value', 'changed':'newvalue', 'deleted':None}},
 
2433
            StubProcess(), '',
 
2434
            env_changes={'new':'value', 'changed':'newvalue', 'deleted':None})
 
2435
 
 
2436
    def test_no_working_dir_passed_as_None(self):
 
2437
        self.assertRunBzrSubprocess({'working_dir': None}, StubProcess(), '')
 
2438
 
 
2439
    def test_no_working_dir_passed_through(self):
 
2440
        self.assertRunBzrSubprocess({'working_dir': 'dir'}, StubProcess(), '',
 
2441
            working_dir='dir')
 
2442
 
 
2443
    def test_run_bzr_subprocess_no_plugins(self):
 
2444
        self.assertRunBzrSubprocess({'allow_plugins': False},
 
2445
            StubProcess(), '')
 
2446
 
 
2447
    def test_allow_plugins(self):
 
2448
        self.assertRunBzrSubprocess({'allow_plugins': True},
 
2449
            StubProcess(), '', allow_plugins=True)
 
2450
 
 
2451
 
 
2452
class TestFinishBzrSubprocess(TestWithFakedStartBzrSubprocess):
 
2453
 
 
2454
    def test_finish_bzr_subprocess_with_error(self):
 
2455
        """finish_bzr_subprocess allows specification of the desired exit code.
 
2456
        """
 
2457
        process = StubProcess(err="unknown command", retcode=3)
 
2458
        result = self.finish_bzr_subprocess(process, retcode=3)
 
2459
        self.assertEqual('', result[0])
 
2460
        self.assertContainsRe(result[1], 'unknown command')
 
2461
 
 
2462
    def test_finish_bzr_subprocess_ignoring_retcode(self):
 
2463
        """finish_bzr_subprocess allows the exit code to be ignored."""
 
2464
        process = StubProcess(err="unknown command", retcode=3)
 
2465
        result = self.finish_bzr_subprocess(process, retcode=None)
 
2466
        self.assertEqual('', result[0])
 
2467
        self.assertContainsRe(result[1], 'unknown command')
 
2468
 
 
2469
    def test_finish_subprocess_with_unexpected_retcode(self):
 
2470
        """finish_bzr_subprocess raises self.failureException if the retcode is
 
2471
        not the expected one.
 
2472
        """
 
2473
        process = StubProcess(err="unknown command", retcode=3)
 
2474
        self.assertRaises(self.failureException, self.finish_bzr_subprocess,
 
2475
                          process)
 
2476
 
 
2477
 
 
2478
class _DontSpawnProcess(Exception):
 
2479
    """A simple exception which just allows us to skip unnecessary steps"""
 
2480
 
 
2481
 
 
2482
class TestStartBzrSubProcess(tests.TestCase):
 
2483
 
 
2484
    def check_popen_state(self):
 
2485
        """Replace to make assertions when popen is called."""
 
2486
 
 
2487
    def _popen(self, *args, **kwargs):
 
2488
        """Record the command that is run, so that we can ensure it is correct"""
 
2489
        self.check_popen_state()
 
2490
        self._popen_args = args
 
2491
        self._popen_kwargs = kwargs
 
2492
        raise _DontSpawnProcess()
 
2493
 
 
2494
    def test_run_bzr_subprocess_no_plugins(self):
 
2495
        self.assertRaises(_DontSpawnProcess, self.start_bzr_subprocess, [])
 
2496
        command = self._popen_args[0]
 
2497
        self.assertEqual(sys.executable, command[0])
 
2498
        self.assertEqual(self.get_bzr_path(), command[1])
 
2499
        self.assertEqual(['--no-plugins'], command[2:])
 
2500
 
 
2501
    def test_allow_plugins(self):
 
2502
        self.assertRaises(_DontSpawnProcess, self.start_bzr_subprocess, [],
 
2503
            allow_plugins=True)
 
2504
        command = self._popen_args[0]
 
2505
        self.assertEqual([], command[2:])
 
2506
 
 
2507
    def test_set_env(self):
 
2508
        self.assertFalse('EXISTANT_ENV_VAR' in os.environ)
 
2509
        # set in the child
 
2510
        def check_environment():
 
2511
            self.assertEqual('set variable', os.environ['EXISTANT_ENV_VAR'])
 
2512
        self.check_popen_state = check_environment
 
2513
        self.assertRaises(_DontSpawnProcess, self.start_bzr_subprocess, [],
 
2514
            env_changes={'EXISTANT_ENV_VAR':'set variable'})
 
2515
        # not set in theparent
 
2516
        self.assertFalse('EXISTANT_ENV_VAR' in os.environ)
 
2517
 
 
2518
    def test_run_bzr_subprocess_env_del(self):
 
2519
        """run_bzr_subprocess can remove environment variables too."""
 
2520
        self.assertFalse('EXISTANT_ENV_VAR' in os.environ)
 
2521
        def check_environment():
 
2522
            self.assertFalse('EXISTANT_ENV_VAR' in os.environ)
 
2523
        os.environ['EXISTANT_ENV_VAR'] = 'set variable'
 
2524
        self.check_popen_state = check_environment
 
2525
        self.assertRaises(_DontSpawnProcess, self.start_bzr_subprocess, [],
 
2526
            env_changes={'EXISTANT_ENV_VAR':None})
 
2527
        # Still set in parent
 
2528
        self.assertEqual('set variable', os.environ['EXISTANT_ENV_VAR'])
 
2529
        del os.environ['EXISTANT_ENV_VAR']
 
2530
 
 
2531
    def test_env_del_missing(self):
 
2532
        self.assertFalse('NON_EXISTANT_ENV_VAR' in os.environ)
 
2533
        def check_environment():
 
2534
            self.assertFalse('NON_EXISTANT_ENV_VAR' in os.environ)
 
2535
        self.check_popen_state = check_environment
 
2536
        self.assertRaises(_DontSpawnProcess, self.start_bzr_subprocess, [],
 
2537
            env_changes={'NON_EXISTANT_ENV_VAR':None})
 
2538
 
 
2539
    def test_working_dir(self):
 
2540
        """Test that we can specify the working dir for the child"""
 
2541
        orig_getcwd = osutils.getcwd
 
2542
        orig_chdir = os.chdir
 
2543
        chdirs = []
 
2544
        def chdir(path):
 
2545
            chdirs.append(path)
 
2546
        os.chdir = chdir
 
2547
        try:
 
2548
            def getcwd():
 
2549
                return 'current'
 
2550
            osutils.getcwd = getcwd
 
2551
            try:
 
2552
                self.assertRaises(_DontSpawnProcess, self.start_bzr_subprocess, [],
 
2553
                    working_dir='foo')
 
2554
            finally:
 
2555
                osutils.getcwd = orig_getcwd
 
2556
        finally:
 
2557
            os.chdir = orig_chdir
 
2558
        self.assertEqual(['foo', 'current'], chdirs)
 
2559
 
 
2560
    def test_get_bzr_path_with_cwd_bzrlib(self):
 
2561
        self.get_source_path = lambda: ""
 
2562
        self.overrideAttr(os.path, "isfile", lambda path: True)
 
2563
        self.assertEqual(self.get_bzr_path(), "bzr")
 
2564
 
 
2565
 
 
2566
class TestActuallyStartBzrSubprocess(tests.TestCaseWithTransport):
 
2567
    """Tests that really need to do things with an external bzr."""
 
2568
 
 
2569
    def test_start_and_stop_bzr_subprocess_send_signal(self):
 
2570
        """finish_bzr_subprocess raises self.failureException if the retcode is
 
2571
        not the expected one.
 
2572
        """
 
2573
        self.disable_missing_extensions_warning()
 
2574
        process = self.start_bzr_subprocess(['wait-until-signalled'],
 
2575
                                            skip_if_plan_to_signal=True)
 
2576
        self.assertEqual('running\n', process.stdout.readline())
 
2577
        result = self.finish_bzr_subprocess(process, send_signal=signal.SIGINT,
 
2578
                                            retcode=3)
 
2579
        self.assertEqual('', result[0])
 
2580
        self.assertEqual('bzr: interrupted\n', result[1])
 
2581
 
 
2582
 
 
2583
class TestFeature(tests.TestCase):
 
2584
 
 
2585
    def test_caching(self):
 
2586
        """Feature._probe is called by the feature at most once."""
 
2587
        class InstrumentedFeature(tests.Feature):
 
2588
            def __init__(self):
 
2589
                super(InstrumentedFeature, self).__init__()
 
2590
                self.calls = []
 
2591
            def _probe(self):
 
2592
                self.calls.append('_probe')
 
2593
                return False
 
2594
        feature = InstrumentedFeature()
 
2595
        feature.available()
 
2596
        self.assertEqual(['_probe'], feature.calls)
 
2597
        feature.available()
 
2598
        self.assertEqual(['_probe'], feature.calls)
 
2599
 
 
2600
    def test_named_str(self):
 
2601
        """Feature.__str__ should thunk to feature_name()."""
 
2602
        class NamedFeature(tests.Feature):
 
2603
            def feature_name(self):
 
2604
                return 'symlinks'
 
2605
        feature = NamedFeature()
 
2606
        self.assertEqual('symlinks', str(feature))
 
2607
 
 
2608
    def test_default_str(self):
 
2609
        """Feature.__str__ should default to __class__.__name__."""
 
2610
        class NamedFeature(tests.Feature):
 
2611
            pass
 
2612
        feature = NamedFeature()
 
2613
        self.assertEqual('NamedFeature', str(feature))
 
2614
 
 
2615
 
 
2616
class TestUnavailableFeature(tests.TestCase):
 
2617
 
 
2618
    def test_access_feature(self):
 
2619
        feature = tests.Feature()
 
2620
        exception = tests.UnavailableFeature(feature)
 
2621
        self.assertIs(feature, exception.args[0])
 
2622
 
 
2623
 
 
2624
simple_thunk_feature = tests._CompatabilityThunkFeature(
 
2625
    deprecated_in((2, 1, 0)),
 
2626
    'bzrlib.tests.test_selftest',
 
2627
    'simple_thunk_feature','UnicodeFilename',
 
2628
    replacement_module='bzrlib.tests'
 
2629
    )
 
2630
 
 
2631
class Test_CompatibilityFeature(tests.TestCase):
 
2632
 
 
2633
    def test_does_thunk(self):
 
2634
        res = self.callDeprecated(
 
2635
            ['bzrlib.tests.test_selftest.simple_thunk_feature was deprecated'
 
2636
             ' in version 2.1.0. Use bzrlib.tests.UnicodeFilename instead.'],
 
2637
            simple_thunk_feature.available)
 
2638
        self.assertEqual(tests.UnicodeFilename.available(), res)
 
2639
 
 
2640
 
 
2641
class TestModuleAvailableFeature(tests.TestCase):
 
2642
 
 
2643
    def test_available_module(self):
 
2644
        feature = tests.ModuleAvailableFeature('bzrlib.tests')
 
2645
        self.assertEqual('bzrlib.tests', feature.module_name)
 
2646
        self.assertEqual('bzrlib.tests', str(feature))
 
2647
        self.assertTrue(feature.available())
 
2648
        self.assertIs(tests, feature.module)
 
2649
 
 
2650
    def test_unavailable_module(self):
 
2651
        feature = tests.ModuleAvailableFeature('bzrlib.no_such_module_exists')
 
2652
        self.assertEqual('bzrlib.no_such_module_exists', str(feature))
 
2653
        self.assertFalse(feature.available())
 
2654
        self.assertIs(None, feature.module)
 
2655
 
 
2656
 
 
2657
class TestSelftestFiltering(tests.TestCase):
 
2658
 
 
2659
    def setUp(self):
 
2660
        tests.TestCase.setUp(self)
 
2661
        self.suite = TestUtil.TestSuite()
 
2662
        self.loader = TestUtil.TestLoader()
 
2663
        self.suite.addTest(self.loader.loadTestsFromModule(
 
2664
            sys.modules['bzrlib.tests.test_selftest']))
 
2665
        self.all_names = _test_ids(self.suite)
 
2666
 
 
2667
    def test_condition_id_re(self):
 
2668
        test_name = ('bzrlib.tests.test_selftest.TestSelftestFiltering.'
 
2669
            'test_condition_id_re')
 
2670
        filtered_suite = tests.filter_suite_by_condition(
 
2671
            self.suite, tests.condition_id_re('test_condition_id_re'))
 
2672
        self.assertEqual([test_name], _test_ids(filtered_suite))
 
2673
 
 
2674
    def test_condition_id_in_list(self):
 
2675
        test_names = ['bzrlib.tests.test_selftest.TestSelftestFiltering.'
 
2676
                      'test_condition_id_in_list']
 
2677
        id_list = tests.TestIdList(test_names)
 
2678
        filtered_suite = tests.filter_suite_by_condition(
 
2679
            self.suite, tests.condition_id_in_list(id_list))
 
2680
        my_pattern = 'TestSelftestFiltering.*test_condition_id_in_list'
 
2681
        re_filtered = tests.filter_suite_by_re(self.suite, my_pattern)
 
2682
        self.assertEqual(_test_ids(re_filtered), _test_ids(filtered_suite))
 
2683
 
 
2684
    def test_condition_id_startswith(self):
 
2685
        klass = 'bzrlib.tests.test_selftest.TestSelftestFiltering.'
 
2686
        start1 = klass + 'test_condition_id_starts'
 
2687
        start2 = klass + 'test_condition_id_in'
 
2688
        test_names = [ klass + 'test_condition_id_in_list',
 
2689
                      klass + 'test_condition_id_startswith',
 
2690
                     ]
 
2691
        filtered_suite = tests.filter_suite_by_condition(
 
2692
            self.suite, tests.condition_id_startswith([start1, start2]))
 
2693
        self.assertEqual(test_names, _test_ids(filtered_suite))
 
2694
 
 
2695
    def test_condition_isinstance(self):
 
2696
        filtered_suite = tests.filter_suite_by_condition(
 
2697
            self.suite, tests.condition_isinstance(self.__class__))
 
2698
        class_pattern = 'bzrlib.tests.test_selftest.TestSelftestFiltering.'
 
2699
        re_filtered = tests.filter_suite_by_re(self.suite, class_pattern)
 
2700
        self.assertEqual(_test_ids(re_filtered), _test_ids(filtered_suite))
 
2701
 
 
2702
    def test_exclude_tests_by_condition(self):
 
2703
        excluded_name = ('bzrlib.tests.test_selftest.TestSelftestFiltering.'
 
2704
            'test_exclude_tests_by_condition')
 
2705
        filtered_suite = tests.exclude_tests_by_condition(self.suite,
 
2706
            lambda x:x.id() == excluded_name)
 
2707
        self.assertEqual(len(self.all_names) - 1,
 
2708
            filtered_suite.countTestCases())
 
2709
        self.assertFalse(excluded_name in _test_ids(filtered_suite))
 
2710
        remaining_names = list(self.all_names)
 
2711
        remaining_names.remove(excluded_name)
 
2712
        self.assertEqual(remaining_names, _test_ids(filtered_suite))
 
2713
 
 
2714
    def test_exclude_tests_by_re(self):
 
2715
        self.all_names = _test_ids(self.suite)
 
2716
        filtered_suite = tests.exclude_tests_by_re(self.suite,
 
2717
                                                   'exclude_tests_by_re')
 
2718
        excluded_name = ('bzrlib.tests.test_selftest.TestSelftestFiltering.'
 
2719
            'test_exclude_tests_by_re')
 
2720
        self.assertEqual(len(self.all_names) - 1,
 
2721
            filtered_suite.countTestCases())
 
2722
        self.assertFalse(excluded_name in _test_ids(filtered_suite))
 
2723
        remaining_names = list(self.all_names)
 
2724
        remaining_names.remove(excluded_name)
 
2725
        self.assertEqual(remaining_names, _test_ids(filtered_suite))
 
2726
 
 
2727
    def test_filter_suite_by_condition(self):
 
2728
        test_name = ('bzrlib.tests.test_selftest.TestSelftestFiltering.'
 
2729
            'test_filter_suite_by_condition')
 
2730
        filtered_suite = tests.filter_suite_by_condition(self.suite,
 
2731
            lambda x:x.id() == test_name)
 
2732
        self.assertEqual([test_name], _test_ids(filtered_suite))
 
2733
 
 
2734
    def test_filter_suite_by_re(self):
 
2735
        filtered_suite = tests.filter_suite_by_re(self.suite,
 
2736
                                                  'test_filter_suite_by_r')
 
2737
        filtered_names = _test_ids(filtered_suite)
 
2738
        self.assertEqual(filtered_names, ['bzrlib.tests.test_selftest.'
 
2739
            'TestSelftestFiltering.test_filter_suite_by_re'])
 
2740
 
 
2741
    def test_filter_suite_by_id_list(self):
 
2742
        test_list = ['bzrlib.tests.test_selftest.'
 
2743
                     'TestSelftestFiltering.test_filter_suite_by_id_list']
 
2744
        filtered_suite = tests.filter_suite_by_id_list(
 
2745
            self.suite, tests.TestIdList(test_list))
 
2746
        filtered_names = _test_ids(filtered_suite)
 
2747
        self.assertEqual(
 
2748
            filtered_names,
 
2749
            ['bzrlib.tests.test_selftest.'
 
2750
             'TestSelftestFiltering.test_filter_suite_by_id_list'])
 
2751
 
 
2752
    def test_filter_suite_by_id_startswith(self):
 
2753
        # By design this test may fail if another test is added whose name also
 
2754
        # begins with one of the start value used.
 
2755
        klass = 'bzrlib.tests.test_selftest.TestSelftestFiltering.'
 
2756
        start1 = klass + 'test_filter_suite_by_id_starts'
 
2757
        start2 = klass + 'test_filter_suite_by_id_li'
 
2758
        test_list = [klass + 'test_filter_suite_by_id_list',
 
2759
                     klass + 'test_filter_suite_by_id_startswith',
 
2760
                     ]
 
2761
        filtered_suite = tests.filter_suite_by_id_startswith(
 
2762
            self.suite, [start1, start2])
 
2763
        self.assertEqual(
 
2764
            test_list,
 
2765
            _test_ids(filtered_suite),
 
2766
            )
 
2767
 
 
2768
    def test_preserve_input(self):
 
2769
        # NB: Surely this is something in the stdlib to do this?
 
2770
        self.assertTrue(self.suite is tests.preserve_input(self.suite))
 
2771
        self.assertTrue("@#$" is tests.preserve_input("@#$"))
 
2772
 
 
2773
    def test_randomize_suite(self):
 
2774
        randomized_suite = tests.randomize_suite(self.suite)
 
2775
        # randomizing should not add or remove test names.
 
2776
        self.assertEqual(set(_test_ids(self.suite)),
 
2777
                         set(_test_ids(randomized_suite)))
 
2778
        # Technically, this *can* fail, because random.shuffle(list) can be
 
2779
        # equal to list. Trying multiple times just pushes the frequency back.
 
2780
        # As its len(self.all_names)!:1, the failure frequency should be low
 
2781
        # enough to ignore. RBC 20071021.
 
2782
        # It should change the order.
 
2783
        self.assertNotEqual(self.all_names, _test_ids(randomized_suite))
 
2784
        # But not the length. (Possibly redundant with the set test, but not
 
2785
        # necessarily.)
 
2786
        self.assertEqual(len(self.all_names), len(_test_ids(randomized_suite)))
 
2787
 
 
2788
    def test_split_suit_by_condition(self):
 
2789
        self.all_names = _test_ids(self.suite)
 
2790
        condition = tests.condition_id_re('test_filter_suite_by_r')
 
2791
        split_suite = tests.split_suite_by_condition(self.suite, condition)
 
2792
        filtered_name = ('bzrlib.tests.test_selftest.TestSelftestFiltering.'
 
2793
            'test_filter_suite_by_re')
 
2794
        self.assertEqual([filtered_name], _test_ids(split_suite[0]))
 
2795
        self.assertFalse(filtered_name in _test_ids(split_suite[1]))
 
2796
        remaining_names = list(self.all_names)
 
2797
        remaining_names.remove(filtered_name)
 
2798
        self.assertEqual(remaining_names, _test_ids(split_suite[1]))
 
2799
 
 
2800
    def test_split_suit_by_re(self):
 
2801
        self.all_names = _test_ids(self.suite)
 
2802
        split_suite = tests.split_suite_by_re(self.suite,
 
2803
                                              'test_filter_suite_by_r')
 
2804
        filtered_name = ('bzrlib.tests.test_selftest.TestSelftestFiltering.'
 
2805
            'test_filter_suite_by_re')
 
2806
        self.assertEqual([filtered_name], _test_ids(split_suite[0]))
 
2807
        self.assertFalse(filtered_name in _test_ids(split_suite[1]))
 
2808
        remaining_names = list(self.all_names)
 
2809
        remaining_names.remove(filtered_name)
 
2810
        self.assertEqual(remaining_names, _test_ids(split_suite[1]))
 
2811
 
 
2812
 
 
2813
class TestCheckInventoryShape(tests.TestCaseWithTransport):
 
2814
 
 
2815
    def test_check_inventory_shape(self):
 
2816
        files = ['a', 'b/', 'b/c']
 
2817
        tree = self.make_branch_and_tree('.')
 
2818
        self.build_tree(files)
 
2819
        tree.add(files)
 
2820
        tree.lock_read()
 
2821
        try:
 
2822
            self.check_inventory_shape(tree.inventory, files)
 
2823
        finally:
 
2824
            tree.unlock()
 
2825
 
 
2826
 
 
2827
class TestBlackboxSupport(tests.TestCase):
 
2828
    """Tests for testsuite blackbox features."""
 
2829
 
 
2830
    def test_run_bzr_failure_not_caught(self):
 
2831
        # When we run bzr in blackbox mode, we want any unexpected errors to
 
2832
        # propagate up to the test suite so that it can show the error in the
 
2833
        # usual way, and we won't get a double traceback.
 
2834
        e = self.assertRaises(
 
2835
            AssertionError,
 
2836
            self.run_bzr, ['assert-fail'])
 
2837
        # make sure we got the real thing, not an error from somewhere else in
 
2838
        # the test framework
 
2839
        self.assertEquals('always fails', str(e))
 
2840
        # check that there's no traceback in the test log
 
2841
        self.assertNotContainsRe(self.get_log(), r'Traceback')
 
2842
 
 
2843
    def test_run_bzr_user_error_caught(self):
 
2844
        # Running bzr in blackbox mode, normal/expected/user errors should be
 
2845
        # caught in the regular way and turned into an error message plus exit
 
2846
        # code.
 
2847
        transport_server = memory.MemoryServer()
 
2848
        transport_server.start_server()
 
2849
        self.addCleanup(transport_server.stop_server)
 
2850
        url = transport_server.get_url()
 
2851
        self.permit_url(url)
 
2852
        out, err = self.run_bzr(["log", "%s/nonexistantpath" % url], retcode=3)
 
2853
        self.assertEqual(out, '')
 
2854
        self.assertContainsRe(err,
 
2855
            'bzr: ERROR: Not a branch: ".*nonexistantpath/".\n')
 
2856
 
 
2857
 
 
2858
class TestTestLoader(tests.TestCase):
 
2859
    """Tests for the test loader."""
 
2860
 
 
2861
    def _get_loader_and_module(self):
 
2862
        """Gets a TestLoader and a module with one test in it."""
 
2863
        loader = TestUtil.TestLoader()
 
2864
        module = {}
 
2865
        class Stub(tests.TestCase):
 
2866
            def test_foo(self):
 
2867
                pass
 
2868
        class MyModule(object):
 
2869
            pass
 
2870
        MyModule.a_class = Stub
 
2871
        module = MyModule()
 
2872
        return loader, module
 
2873
 
 
2874
    def test_module_no_load_tests_attribute_loads_classes(self):
 
2875
        loader, module = self._get_loader_and_module()
 
2876
        self.assertEqual(1, loader.loadTestsFromModule(module).countTestCases())
 
2877
 
 
2878
    def test_module_load_tests_attribute_gets_called(self):
 
2879
        loader, module = self._get_loader_and_module()
 
2880
        # 'self' is here because we're faking the module with a class. Regular
 
2881
        # load_tests do not need that :)
 
2882
        def load_tests(self, standard_tests, module, loader):
 
2883
            result = loader.suiteClass()
 
2884
            for test in tests.iter_suite_tests(standard_tests):
 
2885
                result.addTests([test, test])
 
2886
            return result
 
2887
        # add a load_tests() method which multiplies the tests from the module.
 
2888
        module.__class__.load_tests = load_tests
 
2889
        self.assertEqual(2, loader.loadTestsFromModule(module).countTestCases())
 
2890
 
 
2891
    def test_load_tests_from_module_name_smoke_test(self):
 
2892
        loader = TestUtil.TestLoader()
 
2893
        suite = loader.loadTestsFromModuleName('bzrlib.tests.test_sampler')
 
2894
        self.assertEquals(['bzrlib.tests.test_sampler.DemoTest.test_nothing'],
 
2895
                          _test_ids(suite))
 
2896
 
 
2897
    def test_load_tests_from_module_name_with_bogus_module_name(self):
 
2898
        loader = TestUtil.TestLoader()
 
2899
        self.assertRaises(ImportError, loader.loadTestsFromModuleName, 'bogus')
 
2900
 
 
2901
 
 
2902
class TestTestIdList(tests.TestCase):
 
2903
 
 
2904
    def _create_id_list(self, test_list):
 
2905
        return tests.TestIdList(test_list)
 
2906
 
 
2907
    def _create_suite(self, test_id_list):
 
2908
 
 
2909
        class Stub(tests.TestCase):
 
2910
            def test_foo(self):
 
2911
                pass
 
2912
 
 
2913
        def _create_test_id(id):
 
2914
            return lambda: id
 
2915
 
 
2916
        suite = TestUtil.TestSuite()
 
2917
        for id in test_id_list:
 
2918
            t  = Stub('test_foo')
 
2919
            t.id = _create_test_id(id)
 
2920
            suite.addTest(t)
 
2921
        return suite
 
2922
 
 
2923
    def _test_ids(self, test_suite):
 
2924
        """Get the ids for the tests in a test suite."""
 
2925
        return [t.id() for t in tests.iter_suite_tests(test_suite)]
 
2926
 
 
2927
    def test_empty_list(self):
 
2928
        id_list = self._create_id_list([])
 
2929
        self.assertEquals({}, id_list.tests)
 
2930
        self.assertEquals({}, id_list.modules)
 
2931
 
 
2932
    def test_valid_list(self):
 
2933
        id_list = self._create_id_list(
 
2934
            ['mod1.cl1.meth1', 'mod1.cl1.meth2',
 
2935
             'mod1.func1', 'mod1.cl2.meth2',
 
2936
             'mod1.submod1',
 
2937
             'mod1.submod2.cl1.meth1', 'mod1.submod2.cl2.meth2',
 
2938
             ])
 
2939
        self.assertTrue(id_list.refers_to('mod1'))
 
2940
        self.assertTrue(id_list.refers_to('mod1.submod1'))
 
2941
        self.assertTrue(id_list.refers_to('mod1.submod2'))
 
2942
        self.assertTrue(id_list.includes('mod1.cl1.meth1'))
 
2943
        self.assertTrue(id_list.includes('mod1.submod1'))
 
2944
        self.assertTrue(id_list.includes('mod1.func1'))
 
2945
 
 
2946
    def test_bad_chars_in_params(self):
 
2947
        id_list = self._create_id_list(['mod1.cl1.meth1(xx.yy)'])
 
2948
        self.assertTrue(id_list.refers_to('mod1'))
 
2949
        self.assertTrue(id_list.includes('mod1.cl1.meth1(xx.yy)'))
 
2950
 
 
2951
    def test_module_used(self):
 
2952
        id_list = self._create_id_list(['mod.class.meth'])
 
2953
        self.assertTrue(id_list.refers_to('mod'))
 
2954
        self.assertTrue(id_list.refers_to('mod.class'))
 
2955
        self.assertTrue(id_list.refers_to('mod.class.meth'))
 
2956
 
 
2957
    def test_test_suite_matches_id_list_with_unknown(self):
 
2958
        loader = TestUtil.TestLoader()
 
2959
        suite = loader.loadTestsFromModuleName('bzrlib.tests.test_sampler')
 
2960
        test_list = ['bzrlib.tests.test_sampler.DemoTest.test_nothing',
 
2961
                     'bogus']
 
2962
        not_found, duplicates = tests.suite_matches_id_list(suite, test_list)
 
2963
        self.assertEquals(['bogus'], not_found)
 
2964
        self.assertEquals([], duplicates)
 
2965
 
 
2966
    def test_suite_matches_id_list_with_duplicates(self):
 
2967
        loader = TestUtil.TestLoader()
 
2968
        suite = loader.loadTestsFromModuleName('bzrlib.tests.test_sampler')
 
2969
        dupes = loader.suiteClass()
 
2970
        for test in tests.iter_suite_tests(suite):
 
2971
            dupes.addTest(test)
 
2972
            dupes.addTest(test) # Add it again
 
2973
 
 
2974
        test_list = ['bzrlib.tests.test_sampler.DemoTest.test_nothing',]
 
2975
        not_found, duplicates = tests.suite_matches_id_list(
 
2976
            dupes, test_list)
 
2977
        self.assertEquals([], not_found)
 
2978
        self.assertEquals(['bzrlib.tests.test_sampler.DemoTest.test_nothing'],
 
2979
                          duplicates)
 
2980
 
 
2981
 
 
2982
class TestTestSuite(tests.TestCase):
 
2983
 
 
2984
    def test__test_suite_testmod_names(self):
 
2985
        # Test that a plausible list of test module names are returned
 
2986
        # by _test_suite_testmod_names.
 
2987
        test_list = tests._test_suite_testmod_names()
 
2988
        self.assertSubset([
 
2989
            'bzrlib.tests.blackbox',
 
2990
            'bzrlib.tests.per_transport',
 
2991
            'bzrlib.tests.test_selftest',
 
2992
            ],
 
2993
            test_list)
 
2994
 
 
2995
    def test__test_suite_modules_to_doctest(self):
 
2996
        # Test that a plausible list of modules to doctest is returned
 
2997
        # by _test_suite_modules_to_doctest.
 
2998
        test_list = tests._test_suite_modules_to_doctest()
 
2999
        if __doc__ is None:
 
3000
            # When docstrings are stripped, there are no modules to doctest
 
3001
            self.assertEqual([], test_list)
 
3002
            return
 
3003
        self.assertSubset([
 
3004
            'bzrlib.timestamp',
 
3005
            ],
 
3006
            test_list)
 
3007
 
 
3008
    def test_test_suite(self):
 
3009
        # test_suite() loads the entire test suite to operate. To avoid this
 
3010
        # overhead, and yet still be confident that things are happening,
 
3011
        # we temporarily replace two functions used by test_suite with 
 
3012
        # test doubles that supply a few sample tests to load, and check they
 
3013
        # are loaded.
 
3014
        calls = []
 
3015
        def testmod_names():
 
3016
            calls.append("testmod_names")
 
3017
            return [
 
3018
                'bzrlib.tests.blackbox.test_branch',
 
3019
                'bzrlib.tests.per_transport',
 
3020
                'bzrlib.tests.test_selftest',
 
3021
                ]
 
3022
        self.overrideAttr(tests, '_test_suite_testmod_names', testmod_names)
 
3023
        def doctests():
 
3024
            calls.append("modules_to_doctest")
 
3025
            if __doc__ is None:
 
3026
                return []
 
3027
            return ['bzrlib.timestamp']
 
3028
        self.overrideAttr(tests, '_test_suite_modules_to_doctest', doctests)
 
3029
        expected_test_list = [
 
3030
            # testmod_names
 
3031
            'bzrlib.tests.blackbox.test_branch.TestBranch.test_branch',
 
3032
            ('bzrlib.tests.per_transport.TransportTests'
 
3033
             '.test_abspath(LocalTransport,LocalURLServer)'),
 
3034
            'bzrlib.tests.test_selftest.TestTestSuite.test_test_suite',
 
3035
            # plugins can't be tested that way since selftest may be run with
 
3036
            # --no-plugins
 
3037
            ]
 
3038
        if __doc__ is not None:
 
3039
            expected_test_list.extend([
 
3040
                # modules_to_doctest
 
3041
                'bzrlib.timestamp.format_highres_date',
 
3042
                ])
 
3043
        suite = tests.test_suite()
 
3044
        self.assertEqual(set(["testmod_names", "modules_to_doctest"]),
 
3045
            set(calls))
 
3046
        self.assertSubset(expected_test_list, _test_ids(suite))
 
3047
 
 
3048
    def test_test_suite_list_and_start(self):
 
3049
        # We cannot test this at the same time as the main load, because we want
 
3050
        # to know that starting_with == None works. So a second load is
 
3051
        # incurred - note that the starting_with parameter causes a partial load
 
3052
        # rather than a full load so this test should be pretty quick.
 
3053
        test_list = ['bzrlib.tests.test_selftest.TestTestSuite.test_test_suite']
 
3054
        suite = tests.test_suite(test_list,
 
3055
                                 ['bzrlib.tests.test_selftest.TestTestSuite'])
 
3056
        # test_test_suite_list_and_start is not included 
 
3057
        self.assertEquals(test_list, _test_ids(suite))
 
3058
 
 
3059
 
 
3060
class TestLoadTestIdList(tests.TestCaseInTempDir):
 
3061
 
 
3062
    def _create_test_list_file(self, file_name, content):
 
3063
        fl = open(file_name, 'wt')
 
3064
        fl.write(content)
 
3065
        fl.close()
 
3066
 
 
3067
    def test_load_unknown(self):
 
3068
        self.assertRaises(errors.NoSuchFile,
 
3069
                          tests.load_test_id_list, 'i_do_not_exist')
 
3070
 
 
3071
    def test_load_test_list(self):
 
3072
        test_list_fname = 'test.list'
 
3073
        self._create_test_list_file(test_list_fname,
 
3074
                                    'mod1.cl1.meth1\nmod2.cl2.meth2\n')
 
3075
        tlist = tests.load_test_id_list(test_list_fname)
 
3076
        self.assertEquals(2, len(tlist))
 
3077
        self.assertEquals('mod1.cl1.meth1', tlist[0])
 
3078
        self.assertEquals('mod2.cl2.meth2', tlist[1])
 
3079
 
 
3080
    def test_load_dirty_file(self):
 
3081
        test_list_fname = 'test.list'
 
3082
        self._create_test_list_file(test_list_fname,
 
3083
                                    '  mod1.cl1.meth1\n\nmod2.cl2.meth2  \n'
 
3084
                                    'bar baz\n')
 
3085
        tlist = tests.load_test_id_list(test_list_fname)
 
3086
        self.assertEquals(4, len(tlist))
 
3087
        self.assertEquals('mod1.cl1.meth1', tlist[0])
 
3088
        self.assertEquals('', tlist[1])
 
3089
        self.assertEquals('mod2.cl2.meth2', tlist[2])
 
3090
        self.assertEquals('bar baz', tlist[3])
 
3091
 
 
3092
 
 
3093
class TestFilteredByModuleTestLoader(tests.TestCase):
 
3094
 
 
3095
    def _create_loader(self, test_list):
 
3096
        id_filter = tests.TestIdList(test_list)
 
3097
        loader = TestUtil.FilteredByModuleTestLoader(id_filter.refers_to)
 
3098
        return loader
 
3099
 
 
3100
    def test_load_tests(self):
 
3101
        test_list = ['bzrlib.tests.test_sampler.DemoTest.test_nothing']
 
3102
        loader = self._create_loader(test_list)
 
3103
        suite = loader.loadTestsFromModuleName('bzrlib.tests.test_sampler')
 
3104
        self.assertEquals(test_list, _test_ids(suite))
 
3105
 
 
3106
    def test_exclude_tests(self):
 
3107
        test_list = ['bogus']
 
3108
        loader = self._create_loader(test_list)
 
3109
        suite = loader.loadTestsFromModuleName('bzrlib.tests.test_sampler')
 
3110
        self.assertEquals([], _test_ids(suite))
 
3111
 
 
3112
 
 
3113
class TestFilteredByNameStartTestLoader(tests.TestCase):
 
3114
 
 
3115
    def _create_loader(self, name_start):
 
3116
        def needs_module(name):
 
3117
            return name.startswith(name_start) or name_start.startswith(name)
 
3118
        loader = TestUtil.FilteredByModuleTestLoader(needs_module)
 
3119
        return loader
 
3120
 
 
3121
    def test_load_tests(self):
 
3122
        test_list = ['bzrlib.tests.test_sampler.DemoTest.test_nothing']
 
3123
        loader = self._create_loader('bzrlib.tests.test_samp')
 
3124
 
 
3125
        suite = loader.loadTestsFromModuleName('bzrlib.tests.test_sampler')
 
3126
        self.assertEquals(test_list, _test_ids(suite))
 
3127
 
 
3128
    def test_load_tests_inside_module(self):
 
3129
        test_list = ['bzrlib.tests.test_sampler.DemoTest.test_nothing']
 
3130
        loader = self._create_loader('bzrlib.tests.test_sampler.Demo')
 
3131
 
 
3132
        suite = loader.loadTestsFromModuleName('bzrlib.tests.test_sampler')
 
3133
        self.assertEquals(test_list, _test_ids(suite))
 
3134
 
 
3135
    def test_exclude_tests(self):
 
3136
        test_list = ['bogus']
 
3137
        loader = self._create_loader('bogus')
 
3138
 
 
3139
        suite = loader.loadTestsFromModuleName('bzrlib.tests.test_sampler')
 
3140
        self.assertEquals([], _test_ids(suite))
 
3141
 
 
3142
 
 
3143
class TestTestPrefixRegistry(tests.TestCase):
 
3144
 
 
3145
    def _get_registry(self):
 
3146
        tp_registry = tests.TestPrefixAliasRegistry()
 
3147
        return tp_registry
 
3148
 
 
3149
    def test_register_new_prefix(self):
 
3150
        tpr = self._get_registry()
 
3151
        tpr.register('foo', 'fff.ooo.ooo')
 
3152
        self.assertEquals('fff.ooo.ooo', tpr.get('foo'))
 
3153
 
 
3154
    def test_register_existing_prefix(self):
 
3155
        tpr = self._get_registry()
 
3156
        tpr.register('bar', 'bbb.aaa.rrr')
 
3157
        tpr.register('bar', 'bBB.aAA.rRR')
 
3158
        self.assertEquals('bbb.aaa.rrr', tpr.get('bar'))
 
3159
        self.assertThat(self.get_log(),
 
3160
            DocTestMatches("...bar...bbb.aaa.rrr...BB.aAA.rRR",
 
3161
                           doctest.ELLIPSIS))
 
3162
 
 
3163
    def test_get_unknown_prefix(self):
 
3164
        tpr = self._get_registry()
 
3165
        self.assertRaises(KeyError, tpr.get, 'I am not a prefix')
 
3166
 
 
3167
    def test_resolve_prefix(self):
 
3168
        tpr = self._get_registry()
 
3169
        tpr.register('bar', 'bb.aa.rr')
 
3170
        self.assertEquals('bb.aa.rr', tpr.resolve_alias('bar'))
 
3171
 
 
3172
    def test_resolve_unknown_alias(self):
 
3173
        tpr = self._get_registry()
 
3174
        self.assertRaises(errors.BzrCommandError,
 
3175
                          tpr.resolve_alias, 'I am not a prefix')
 
3176
 
 
3177
    def test_predefined_prefixes(self):
 
3178
        tpr = tests.test_prefix_alias_registry
 
3179
        self.assertEquals('bzrlib', tpr.resolve_alias('bzrlib'))
 
3180
        self.assertEquals('bzrlib.doc', tpr.resolve_alias('bd'))
 
3181
        self.assertEquals('bzrlib.utils', tpr.resolve_alias('bu'))
 
3182
        self.assertEquals('bzrlib.tests', tpr.resolve_alias('bt'))
 
3183
        self.assertEquals('bzrlib.tests.blackbox', tpr.resolve_alias('bb'))
 
3184
        self.assertEquals('bzrlib.plugins', tpr.resolve_alias('bp'))
 
3185
 
 
3186
 
 
3187
class TestThreadLeakDetection(tests.TestCase):
 
3188
    """Ensure when tests leak threads we detect and report it"""
 
3189
 
 
3190
    class LeakRecordingResult(tests.ExtendedTestResult):
 
3191
        def __init__(self):
 
3192
            tests.ExtendedTestResult.__init__(self, StringIO(), 0, 1)
 
3193
            self.leaks = []
 
3194
        def _report_thread_leak(self, test, leaks, alive):
 
3195
            self.leaks.append((test, leaks))
 
3196
 
 
3197
    def test_testcase_without_addCleanups(self):
 
3198
        """Check old TestCase instances don't break with leak detection"""
 
3199
        class Test(unittest.TestCase):
 
3200
            def runTest(self):
 
3201
                pass
 
3202
        result = self.LeakRecordingResult()
 
3203
        test = Test()
 
3204
        result.startTestRun()
 
3205
        test.run(result)
 
3206
        result.stopTestRun()
 
3207
        self.assertEqual(result._tests_leaking_threads_count, 0)
 
3208
        self.assertEqual(result.leaks, [])
 
3209
        
 
3210
    def test_thread_leak(self):
 
3211
        """Ensure a thread that outlives the running of a test is reported
 
3212
 
 
3213
        Uses a thread that blocks on an event, and is started by the inner
 
3214
        test case. As the thread outlives the inner case's run, it should be
 
3215
        detected as a leak, but the event is then set so that the thread can
 
3216
        be safely joined in cleanup so it's not leaked for real.
 
3217
        """
 
3218
        event = threading.Event()
 
3219
        thread = threading.Thread(name="Leaker", target=event.wait)
 
3220
        class Test(tests.TestCase):
 
3221
            def test_leak(self):
 
3222
                thread.start()
 
3223
        result = self.LeakRecordingResult()
 
3224
        test = Test("test_leak")
 
3225
        self.addCleanup(thread.join)
 
3226
        self.addCleanup(event.set)
 
3227
        result.startTestRun()
 
3228
        test.run(result)
 
3229
        result.stopTestRun()
 
3230
        self.assertEqual(result._tests_leaking_threads_count, 1)
 
3231
        self.assertEqual(result._first_thread_leaker_id, test.id())
 
3232
        self.assertEqual(result.leaks, [(test, set([thread]))])
 
3233
        self.assertContainsString(result.stream.getvalue(), "leaking threads")
 
3234
 
 
3235
    def test_multiple_leaks(self):
 
3236
        """Check multiple leaks are blamed on the test cases at fault
 
3237
 
 
3238
        Same concept as the previous test, but has one inner test method that
 
3239
        leaks two threads, and one that doesn't leak at all.
 
3240
        """
 
3241
        event = threading.Event()
 
3242
        thread_a = threading.Thread(name="LeakerA", target=event.wait)
 
3243
        thread_b = threading.Thread(name="LeakerB", target=event.wait)
 
3244
        thread_c = threading.Thread(name="LeakerC", target=event.wait)
 
3245
        class Test(tests.TestCase):
 
3246
            def test_first_leak(self):
 
3247
                thread_b.start()
 
3248
            def test_second_no_leak(self):
 
3249
                pass
 
3250
            def test_third_leak(self):
 
3251
                thread_c.start()
 
3252
                thread_a.start()
 
3253
        result = self.LeakRecordingResult()
 
3254
        first_test = Test("test_first_leak")
 
3255
        third_test = Test("test_third_leak")
 
3256
        self.addCleanup(thread_a.join)
 
3257
        self.addCleanup(thread_b.join)
 
3258
        self.addCleanup(thread_c.join)
 
3259
        self.addCleanup(event.set)
 
3260
        result.startTestRun()
 
3261
        unittest.TestSuite(
 
3262
            [first_test, Test("test_second_no_leak"), third_test]
 
3263
            ).run(result)
 
3264
        result.stopTestRun()
 
3265
        self.assertEqual(result._tests_leaking_threads_count, 2)
 
3266
        self.assertEqual(result._first_thread_leaker_id, first_test.id())
 
3267
        self.assertEqual(result.leaks, [
 
3268
            (first_test, set([thread_b])),
 
3269
            (third_test, set([thread_a, thread_c]))])
 
3270
        self.assertContainsString(result.stream.getvalue(), "leaking threads")
 
3271
 
 
3272
 
 
3273
class TestPostMortemDebugging(tests.TestCase):
 
3274
    """Check post mortem debugging works when tests fail or error"""
 
3275
 
 
3276
    class TracebackRecordingResult(tests.ExtendedTestResult):
 
3277
        def __init__(self):
 
3278
            tests.ExtendedTestResult.__init__(self, StringIO(), 0, 1)
 
3279
            self.postcode = None
 
3280
        def _post_mortem(self, tb=None):
 
3281
            """Record the code object at the end of the current traceback"""
 
3282
            tb = tb or sys.exc_info()[2]
 
3283
            if tb is not None:
 
3284
                next = tb.tb_next
 
3285
                while next is not None:
 
3286
                    tb = next
 
3287
                    next = next.tb_next
 
3288
                self.postcode = tb.tb_frame.f_code
 
3289
        def report_error(self, test, err):
 
3290
            pass
 
3291
        def report_failure(self, test, err):
 
3292
            pass
 
3293
 
 
3294
    def test_location_unittest_error(self):
 
3295
        """Needs right post mortem traceback with erroring unittest case"""
 
3296
        class Test(unittest.TestCase):
 
3297
            def runTest(self):
 
3298
                raise RuntimeError
 
3299
        result = self.TracebackRecordingResult()
 
3300
        Test().run(result)
 
3301
        self.assertEqual(result.postcode, Test.runTest.func_code)
 
3302
 
 
3303
    def test_location_unittest_failure(self):
 
3304
        """Needs right post mortem traceback with failing unittest case"""
 
3305
        class Test(unittest.TestCase):
 
3306
            def runTest(self):
 
3307
                raise self.failureException
 
3308
        result = self.TracebackRecordingResult()
 
3309
        Test().run(result)
 
3310
        self.assertEqual(result.postcode, Test.runTest.func_code)
 
3311
 
 
3312
    def test_location_bt_error(self):
 
3313
        """Needs right post mortem traceback with erroring bzrlib.tests case"""
 
3314
        class Test(tests.TestCase):
 
3315
            def test_error(self):
 
3316
                raise RuntimeError
 
3317
        result = self.TracebackRecordingResult()
 
3318
        Test("test_error").run(result)
 
3319
        self.assertEqual(result.postcode, Test.test_error.func_code)
 
3320
 
 
3321
    def test_location_bt_failure(self):
 
3322
        """Needs right post mortem traceback with failing bzrlib.tests case"""
 
3323
        class Test(tests.TestCase):
 
3324
            def test_failure(self):
 
3325
                raise self.failureException
 
3326
        result = self.TracebackRecordingResult()
 
3327
        Test("test_failure").run(result)
 
3328
        self.assertEqual(result.postcode, Test.test_failure.func_code)
 
3329
 
 
3330
    def test_env_var_triggers_post_mortem(self):
 
3331
        """Check pdb.post_mortem is called iff BZR_TEST_PDB is set"""
 
3332
        import pdb
 
3333
        result = tests.ExtendedTestResult(StringIO(), 0, 1)
 
3334
        post_mortem_calls = []
 
3335
        self.overrideAttr(pdb, "post_mortem", post_mortem_calls.append)
 
3336
        self.overrideEnv('BZR_TEST_PDB', None)
 
3337
        result._post_mortem(1)
 
3338
        self.overrideEnv('BZR_TEST_PDB', 'on')
 
3339
        result._post_mortem(2)
 
3340
        self.assertEqual([2], post_mortem_calls)
 
3341
 
 
3342
 
 
3343
class TestRunSuite(tests.TestCase):
 
3344
 
 
3345
    def test_runner_class(self):
 
3346
        """run_suite accepts and uses a runner_class keyword argument."""
 
3347
        class Stub(tests.TestCase):
 
3348
            def test_foo(self):
 
3349
                pass
 
3350
        suite = Stub("test_foo")
 
3351
        calls = []
 
3352
        class MyRunner(tests.TextTestRunner):
 
3353
            def run(self, test):
 
3354
                calls.append(test)
 
3355
                return tests.ExtendedTestResult(self.stream, self.descriptions,
 
3356
                                                self.verbosity)
 
3357
        tests.run_suite(suite, runner_class=MyRunner, stream=StringIO())
 
3358
        self.assertLength(1, calls)
 
3359
 
 
3360
 
 
3361
class TestEnvironHandling(tests.TestCase):
 
3362
 
 
3363
    def test_overrideEnv_None_called_twice_doesnt_leak(self):
 
3364
        self.assertFalse('MYVAR' in os.environ)
 
3365
        self.overrideEnv('MYVAR', '42')
 
3366
        # We use an embedded test to make sure we fix the _captureVar bug
 
3367
        class Test(tests.TestCase):
 
3368
            def test_me(self):
 
3369
                # The first call save the 42 value
 
3370
                self.overrideEnv('MYVAR', None)
 
3371
                self.assertEquals(None, os.environ.get('MYVAR'))
 
3372
                # Make sure we can call it twice
 
3373
                self.overrideEnv('MYVAR', None)
 
3374
                self.assertEquals(None, os.environ.get('MYVAR'))
 
3375
        output = StringIO()
 
3376
        result = tests.TextTestResult(output, 0, 1)
 
3377
        Test('test_me').run(result)
 
3378
        if not result.wasStrictlySuccessful():
 
3379
            self.fail(output.getvalue())
 
3380
        # We get our value back
 
3381
        self.assertEquals('42', os.environ.get('MYVAR'))
 
3382
 
 
3383
 
 
3384
class TestIsolatedEnv(tests.TestCase):
 
3385
    """Test isolating tests from os.environ.
 
3386
 
 
3387
    Since we use tests that are already isolated from os.environ a bit of care
 
3388
    should be taken when designing the tests to avoid bootstrap side-effects.
 
3389
    The tests start an already clean os.environ which allow doing valid
 
3390
    assertions about which variables are present or not and design tests around
 
3391
    these assertions.
 
3392
    """
 
3393
 
 
3394
    class ScratchMonkey(tests.TestCase):
 
3395
 
 
3396
        def test_me(self):
 
3397
            pass
 
3398
 
 
3399
    def test_basics(self):
 
3400
        # Make sure we know the definition of BZR_HOME: not part of os.environ
 
3401
        # for tests.TestCase.
 
3402
        self.assertTrue('BZR_HOME' in tests.isolated_environ)
 
3403
        self.assertEquals(None, tests.isolated_environ['BZR_HOME'])
 
3404
        # Being part of isolated_environ, BZR_HOME should not appear here
 
3405
        self.assertFalse('BZR_HOME' in os.environ)
 
3406
        # Make sure we know the definition of LINES: part of os.environ for
 
3407
        # tests.TestCase
 
3408
        self.assertTrue('LINES' in tests.isolated_environ)
 
3409
        self.assertEquals('25', tests.isolated_environ['LINES'])
 
3410
        self.assertEquals('25', os.environ['LINES'])
 
3411
 
 
3412
    def test_injecting_unknown_variable(self):
 
3413
        # BZR_HOME is known to be absent from os.environ
 
3414
        test = self.ScratchMonkey('test_me')
 
3415
        tests.override_os_environ(test, {'BZR_HOME': 'foo'})
 
3416
        self.assertEquals('foo', os.environ['BZR_HOME'])
 
3417
        tests.restore_os_environ(test)
 
3418
        self.assertFalse('BZR_HOME' in os.environ)
 
3419
 
 
3420
    def test_injecting_known_variable(self):
 
3421
        test = self.ScratchMonkey('test_me')
 
3422
        # LINES is known to be present in os.environ
 
3423
        tests.override_os_environ(test, {'LINES': '42'})
 
3424
        self.assertEquals('42', os.environ['LINES'])
 
3425
        tests.restore_os_environ(test)
 
3426
        self.assertEquals('25', os.environ['LINES'])
 
3427
 
 
3428
    def test_deleting_variable(self):
 
3429
        test = self.ScratchMonkey('test_me')
 
3430
        # LINES is known to be present in os.environ
 
3431
        tests.override_os_environ(test, {'LINES': None})
 
3432
        self.assertTrue('LINES' not in os.environ)
 
3433
        tests.restore_os_environ(test)
 
3434
        self.assertEquals('25', os.environ['LINES'])
 
3435
 
 
3436
 
 
3437
class TestDocTestSuiteIsolation(tests.TestCase):
 
3438
    """Test that `tests.DocTestSuite` isolates doc tests from os.environ.
 
3439
 
 
3440
    Since tests.TestCase alreay provides an isolation from os.environ, we use
 
3441
    the clean environment as a base for testing. To precisely capture the
 
3442
    isolation provided by tests.DocTestSuite, we use doctest.DocTestSuite to
 
3443
    compare against.
 
3444
 
 
3445
    We want to make sure `tests.DocTestSuite` respect `tests.isolated_environ`,
 
3446
    not `os.environ` so each test overrides it to suit its needs.
 
3447
 
 
3448
    """
 
3449
 
 
3450
    def get_doctest_suite_for_string(self, klass, string):
 
3451
        class Finder(doctest.DocTestFinder):
 
3452
 
 
3453
            def find(*args, **kwargs):
 
3454
                test = doctest.DocTestParser().get_doctest(
 
3455
                    string, {}, 'foo', 'foo.py', 0)
 
3456
                return [test]
 
3457
 
 
3458
        suite = klass(test_finder=Finder())
 
3459
        return suite
 
3460
 
 
3461
    def run_doctest_suite_for_string(self, klass, string):
 
3462
        suite = self.get_doctest_suite_for_string(klass, string)
 
3463
        output = StringIO()
 
3464
        result = tests.TextTestResult(output, 0, 1)
 
3465
        suite.run(result)
 
3466
        return result, output
 
3467
 
 
3468
    def assertDocTestStringSucceds(self, klass, string):
 
3469
        result, output = self.run_doctest_suite_for_string(klass, string)
 
3470
        if not result.wasStrictlySuccessful():
 
3471
            self.fail(output.getvalue())
 
3472
 
 
3473
    def assertDocTestStringFails(self, klass, string):
 
3474
        result, output = self.run_doctest_suite_for_string(klass, string)
 
3475
        if result.wasStrictlySuccessful():
 
3476
            self.fail(output.getvalue())
 
3477
 
 
3478
    def test_injected_variable(self):
 
3479
        self.overrideAttr(tests, 'isolated_environ', {'LINES': '42'})
 
3480
        test = """
 
3481
            >>> import os
 
3482
            >>> os.environ['LINES']
 
3483
            '42'
 
3484
            """
 
3485
        # doctest.DocTestSuite fails as it sees '25'
 
3486
        self.assertDocTestStringFails(doctest.DocTestSuite, test)
 
3487
        # tests.DocTestSuite sees '42'
 
3488
        self.assertDocTestStringSucceds(tests.IsolatedDocTestSuite, test)
 
3489
 
 
3490
    def test_deleted_variable(self):
 
3491
        self.overrideAttr(tests, 'isolated_environ', {'LINES': None})
 
3492
        test = """
 
3493
            >>> import os
 
3494
            >>> os.environ.get('LINES')
 
3495
            """
 
3496
        # doctest.DocTestSuite fails as it sees '25'
 
3497
        self.assertDocTestStringFails(doctest.DocTestSuite, test)
 
3498
        # tests.DocTestSuite sees None
 
3499
        self.assertDocTestStringSucceds(tests.IsolatedDocTestSuite, test)