forked from dcramer/django-compositepks
-
Notifications
You must be signed in to change notification settings - Fork 1
/
testcases.py
1143 lines (975 loc) · 43.7 KB
/
testcases.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
from __future__ import with_statement
import difflib
import os
import re
import sys
from copy import copy
from functools import wraps
from urlparse import urlsplit, urlunsplit
from xml.dom.minidom import parseString, Node
import select
import socket
import threading
import errno
from django.conf import settings
from django.contrib.staticfiles.handlers import StaticFilesHandler
from django.core import mail
from django.core.exceptions import ValidationError, ImproperlyConfigured
from django.core.handlers.wsgi import WSGIHandler
from django.core.management import call_command
from django.core.signals import request_started
from django.core.servers.basehttp import (WSGIRequestHandler, WSGIServer,
WSGIServerException)
from django.core.urlresolvers import clear_url_caches
from django.core.validators import EMPTY_VALUES
from django.db import (transaction, connection, connections, DEFAULT_DB_ALIAS,
reset_queries)
from django.forms.fields import CharField
from django.http import QueryDict
from django.test import _doctest as doctest
from django.test.client import Client
from django.test.html import HTMLParseError, parse_html
from django.test.signals import template_rendered
from django.test.utils import (get_warnings_state, restore_warnings_state,
override_settings)
from django.test.utils import ContextList
from django.utils import simplejson, unittest as ut2
from django.utils.encoding import smart_str, force_unicode
from django.utils.unittest.util import safe_repr
from django.views.static import serve
__all__ = ('DocTestRunner', 'OutputChecker', 'TestCase', 'TransactionTestCase',
'SimpleTestCase', 'skipIfDBFeature', 'skipUnlessDBFeature')
normalize_long_ints = lambda s: re.sub(r'(?<![\w])(\d+)L(?![\w])', '\\1', s)
normalize_decimals = lambda s: re.sub(r"Decimal\('(\d+(\.\d*)?)'\)",
lambda m: "Decimal(\"%s\")" % m.groups()[0], s)
def to_list(value):
"""
Puts value into a list if it's not already one.
Returns an empty list if value is None.
"""
if value is None:
value = []
elif not isinstance(value, list):
value = [value]
return value
real_commit = transaction.commit
real_rollback = transaction.rollback
real_enter_transaction_management = transaction.enter_transaction_management
real_leave_transaction_management = transaction.leave_transaction_management
real_managed = transaction.managed
def nop(*args, **kwargs):
return
def disable_transaction_methods():
transaction.commit = nop
transaction.rollback = nop
transaction.enter_transaction_management = nop
transaction.leave_transaction_management = nop
transaction.managed = nop
def restore_transaction_methods():
transaction.commit = real_commit
transaction.rollback = real_rollback
transaction.enter_transaction_management = real_enter_transaction_management
transaction.leave_transaction_management = real_leave_transaction_management
transaction.managed = real_managed
def assert_and_parse_html(self, html, user_msg, msg):
try:
dom = parse_html(html)
except HTMLParseError, e:
standardMsg = u'%s\n%s' % (msg, e.msg)
self.fail(self._formatMessage(user_msg, standardMsg))
return dom
class OutputChecker(doctest.OutputChecker):
def check_output(self, want, got, optionflags):
"""
The entry method for doctest output checking. Defers to a sequence of
child checkers
"""
checks = (self.check_output_default,
self.check_output_numeric,
self.check_output_xml,
self.check_output_json)
for check in checks:
if check(want, got, optionflags):
return True
return False
def check_output_default(self, want, got, optionflags):
"""
The default comparator provided by doctest - not perfect, but good for
most purposes
"""
return doctest.OutputChecker.check_output(self, want, got, optionflags)
def check_output_numeric(self, want, got, optionflags):
"""Doctest does an exact string comparison of output, which means that
some numerically equivalent values aren't equal. This check normalizes
* long integers (22L) so that they equal normal integers. (22)
* Decimals so that they are comparable, regardless of the change
made to __repr__ in Python 2.6.
"""
return doctest.OutputChecker.check_output(self,
normalize_decimals(normalize_long_ints(want)),
normalize_decimals(normalize_long_ints(got)),
optionflags)
def check_output_xml(self, want, got, optionsflags):
"""Tries to do a 'xml-comparision' of want and got. Plain string
comparision doesn't always work because, for example, attribute
ordering should not be important.
Based on http://codespeak.net/svn/lxml/trunk/src/lxml/doctestcompare.py
"""
_norm_whitespace_re = re.compile(r'[ \t\n][ \t\n]+')
def norm_whitespace(v):
return _norm_whitespace_re.sub(' ', v)
def child_text(element):
return ''.join([c.data for c in element.childNodes
if c.nodeType == Node.TEXT_NODE])
def children(element):
return [c for c in element.childNodes
if c.nodeType == Node.ELEMENT_NODE]
def norm_child_text(element):
return norm_whitespace(child_text(element))
def attrs_dict(element):
return dict(element.attributes.items())
def check_element(want_element, got_element):
if want_element.tagName != got_element.tagName:
return False
if norm_child_text(want_element) != norm_child_text(got_element):
return False
if attrs_dict(want_element) != attrs_dict(got_element):
return False
want_children = children(want_element)
got_children = children(got_element)
if len(want_children) != len(got_children):
return False
for want, got in zip(want_children, got_children):
if not check_element(want, got):
return False
return True
want, got = self._strip_quotes(want, got)
want = want.replace('\\n','\n')
got = got.replace('\\n','\n')
# If the string is not a complete xml document, we may need to add a
# root element. This allow us to compare fragments, like "<foo/><bar/>"
if not want.startswith('<?xml'):
wrapper = '<root>%s</root>'
want = wrapper % want
got = wrapper % got
# Parse the want and got strings, and compare the parsings.
try:
want_root = parseString(want).firstChild
got_root = parseString(got).firstChild
except Exception:
return False
return check_element(want_root, got_root)
def check_output_json(self, want, got, optionsflags):
"""
Tries to compare want and got as if they were JSON-encoded data
"""
want, got = self._strip_quotes(want, got)
try:
want_json = simplejson.loads(want)
got_json = simplejson.loads(got)
except Exception:
return False
return want_json == got_json
def _strip_quotes(self, want, got):
"""
Strip quotes of doctests output values:
>>> o = OutputChecker()
>>> o._strip_quotes("'foo'")
"foo"
>>> o._strip_quotes('"foo"')
"foo"
>>> o._strip_quotes("u'foo'")
"foo"
>>> o._strip_quotes('u"foo"')
"foo"
"""
def is_quoted_string(s):
s = s.strip()
return (len(s) >= 2
and s[0] == s[-1]
and s[0] in ('"', "'"))
def is_quoted_unicode(s):
s = s.strip()
return (len(s) >= 3
and s[0] == 'u'
and s[1] == s[-1]
and s[1] in ('"', "'"))
if is_quoted_string(want) and is_quoted_string(got):
want = want.strip()[1:-1]
got = got.strip()[1:-1]
elif is_quoted_unicode(want) and is_quoted_unicode(got):
want = want.strip()[2:-1]
got = got.strip()[2:-1]
return want, got
class DocTestRunner(doctest.DocTestRunner):
def __init__(self, *args, **kwargs):
doctest.DocTestRunner.__init__(self, *args, **kwargs)
self.optionflags = doctest.ELLIPSIS
def report_unexpected_exception(self, out, test, example, exc_info):
doctest.DocTestRunner.report_unexpected_exception(self, out, test,
example, exc_info)
# Rollback, in case of database errors. Otherwise they'd have
# side effects on other tests.
for conn in connections:
transaction.rollback_unless_managed(using=conn)
class _AssertNumQueriesContext(object):
def __init__(self, test_case, num, connection):
self.test_case = test_case
self.num = num
self.connection = connection
def __enter__(self):
self.old_debug_cursor = self.connection.use_debug_cursor
self.connection.use_debug_cursor = True
self.starting_queries = len(self.connection.queries)
request_started.disconnect(reset_queries)
return self
def __exit__(self, exc_type, exc_value, traceback):
self.connection.use_debug_cursor = self.old_debug_cursor
request_started.connect(reset_queries)
if exc_type is not None:
return
final_queries = len(self.connection.queries)
executed = final_queries - self.starting_queries
self.test_case.assertEqual(
executed, self.num, "%d queries executed, %d expected" % (
executed, self.num
)
)
class _AssertTemplateUsedContext(object):
def __init__(self, test_case, template_name):
self.test_case = test_case
self.template_name = template_name
self.rendered_templates = []
self.rendered_template_names = []
self.context = ContextList()
def on_template_render(self, sender, signal, template, context, **kwargs):
self.rendered_templates.append(template)
self.rendered_template_names.append(template.name)
self.context.append(copy(context))
def test(self):
return self.template_name in self.rendered_template_names
def message(self):
return u'%s was not rendered.' % self.template_name
def __enter__(self):
template_rendered.connect(self.on_template_render)
return self
def __exit__(self, exc_type, exc_value, traceback):
template_rendered.disconnect(self.on_template_render)
if exc_type is not None:
return
if not self.test():
message = self.message()
if len(self.rendered_templates) == 0:
message += u' No template was rendered.'
else:
message += u' Following templates were rendered: %s' % (
', '.join(self.rendered_template_names))
self.test_case.fail(message)
class _AssertTemplateNotUsedContext(_AssertTemplateUsedContext):
def test(self):
return self.template_name not in self.rendered_template_names
def message(self):
return u'%s was rendered.' % self.template_name
class SimpleTestCase(ut2.TestCase):
def save_warnings_state(self):
"""
Saves the state of the warnings module
"""
self._warnings_state = get_warnings_state()
def restore_warnings_state(self):
"""
Restores the state of the warnings module to the state
saved by save_warnings_state()
"""
restore_warnings_state(self._warnings_state)
def settings(self, **kwargs):
"""
A context manager that temporarily sets a setting and reverts
back to the original value when exiting the context.
"""
return override_settings(**kwargs)
def assertRaisesMessage(self, expected_exception, expected_message,
callable_obj=None, *args, **kwargs):
"""
Asserts that the message in a raised exception matches the passed
value.
Args:
expected_exception: Exception class expected to be raised.
expected_message: expected error message string value.
callable_obj: Function to be called.
args: Extra args.
kwargs: Extra kwargs.
"""
return self.assertRaisesRegexp(expected_exception,
re.escape(expected_message), callable_obj, *args, **kwargs)
def assertFieldOutput(self, fieldclass, valid, invalid, field_args=None,
field_kwargs=None, empty_value=u''):
"""
Asserts that a form field behaves correctly with various inputs.
Args:
fieldclass: the class of the field to be tested.
valid: a dictionary mapping valid inputs to their expected
cleaned values.
invalid: a dictionary mapping invalid inputs to one or more
raised error messages.
field_args: the args passed to instantiate the field
field_kwargs: the kwargs passed to instantiate the field
empty_value: the expected clean output for inputs in EMPTY_VALUES
"""
if field_args is None:
field_args = []
if field_kwargs is None:
field_kwargs = {}
required = fieldclass(*field_args, **field_kwargs)
optional = fieldclass(*field_args,
**dict(field_kwargs, required=False))
# test valid inputs
for input, output in valid.items():
self.assertEqual(required.clean(input), output)
self.assertEqual(optional.clean(input), output)
# test invalid inputs
for input, errors in invalid.items():
with self.assertRaises(ValidationError) as context_manager:
required.clean(input)
self.assertEqual(context_manager.exception.messages, errors)
with self.assertRaises(ValidationError) as context_manager:
optional.clean(input)
self.assertEqual(context_manager.exception.messages, errors)
# test required inputs
error_required = [force_unicode(required.error_messages['required'])]
for e in EMPTY_VALUES:
with self.assertRaises(ValidationError) as context_manager:
required.clean(e)
self.assertEqual(context_manager.exception.messages,
error_required)
self.assertEqual(optional.clean(e), empty_value)
# test that max_length and min_length are always accepted
if issubclass(fieldclass, CharField):
field_kwargs.update({'min_length':2, 'max_length':20})
self.assertTrue(isinstance(fieldclass(*field_args, **field_kwargs),
fieldclass))
def assertHTMLEqual(self, html1, html2, msg=None):
"""
Asserts that two html snippets are semantically the same, e.g. whitespace
in most cases is ignored, attribute ordering is not significant. The
passed in arguments must be valid HTML.
"""
dom1 = assert_and_parse_html(self, html1, msg,
u'First argument is no valid html:')
dom2 = assert_and_parse_html(self, html2, msg,
u'Second argument is no valid html:')
if dom1 != dom2:
standardMsg = '%s != %s' % (safe_repr(dom1, True), safe_repr(dom2, True))
diff = ('\n' + '\n'.join(difflib.ndiff(
unicode(dom1).splitlines(),
unicode(dom2).splitlines())))
standardMsg = self._truncateMessage(standardMsg, diff)
self.fail(self._formatMessage(msg, standardMsg))
def assertHTMLNotEqual(self, html1, html2, msg=None):
dom1 = assert_and_parse_html(self, html1, msg,
u'First argument is no valid html')
dom2 = assert_and_parse_html(self, html2, msg,
u'Second argument is no valid html')
if not dom1 != dom2:
standardMsg = '%s == %s' % (safe_repr(dom1, True), safe_repr(dom2, True))
self.fail(self._formatMessage(msg, standardMsg))
class TransactionTestCase(SimpleTestCase):
# The class we'll use for the test client self.client.
# Can be overridden in derived classes.
client_class = Client
def _pre_setup(self):
"""Performs any pre-test setup. This includes:
* Flushing the database.
* If the Test Case class has a 'fixtures' member, installing the
named fixtures.
* If the Test Case class has a 'urls' member, replace the
ROOT_URLCONF with it.
* Clearing the mail test outbox.
"""
self._fixture_setup()
self._urlconf_setup()
mail.outbox = []
def _fixture_setup(self):
# If the test case has a multi_db=True flag, flush all databases.
# Otherwise, just flush default.
if getattr(self, 'multi_db', False):
databases = connections
else:
databases = [DEFAULT_DB_ALIAS]
for db in databases:
call_command('flush', verbosity=0, interactive=False, database=db)
if hasattr(self, 'fixtures'):
# We have to use this slightly awkward syntax due to the fact
# that we're using *args and **kwargs together.
call_command('loaddata', *self.fixtures,
**{'verbosity': 0, 'database': db})
def _urlconf_setup(self):
if hasattr(self, 'urls'):
self._old_root_urlconf = settings.ROOT_URLCONF
settings.ROOT_URLCONF = self.urls
clear_url_caches()
def __call__(self, result=None):
"""
Wrapper around default __call__ method to perform common Django test
set up. This means that user-defined Test Cases aren't required to
include a call to super().setUp().
"""
testMethod = getattr(self, self._testMethodName)
skipped = (getattr(self.__class__, "__unittest_skip__", False) or
getattr(testMethod, "__unittest_skip__", False))
if not skipped:
self.client = self.client_class()
try:
self._pre_setup()
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
result.addError(self, sys.exc_info())
return
super(TransactionTestCase, self).__call__(result)
if not skipped:
try:
self._post_teardown()
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
result.addError(self, sys.exc_info())
return
def _post_teardown(self):
""" Performs any post-test things. This includes:
* Putting back the original ROOT_URLCONF if it was changed.
* Force closing the connection, so that the next test gets
a clean cursor.
"""
self._fixture_teardown()
self._urlconf_teardown()
# Some DB cursors include SQL statements as part of cursor
# creation. If you have a test that does rollback, the effect
# of these statements is lost, which can effect the operation
# of tests (e.g., losing a timezone setting causing objects to
# be created with the wrong time).
# To make sure this doesn't happen, get a clean connection at the
# start of every test.
for conn in connections.all():
conn.close()
def _fixture_teardown(self):
pass
def _urlconf_teardown(self):
if hasattr(self, '_old_root_urlconf'):
settings.ROOT_URLCONF = self._old_root_urlconf
clear_url_caches()
def assertRedirects(self, response, expected_url, status_code=302,
target_status_code=200, host=None, msg_prefix=''):
"""Asserts that a response redirected to a specific URL, and that the
redirect URL can be loaded.
Note that assertRedirects won't work for external links since it uses
TestClient to do a request.
"""
if msg_prefix:
msg_prefix += ": "
if hasattr(response, 'redirect_chain'):
# The request was a followed redirect
self.assertTrue(len(response.redirect_chain) > 0,
msg_prefix + "Response didn't redirect as expected: Response"
" code was %d (expected %d)" %
(response.status_code, status_code))
self.assertEqual(response.redirect_chain[0][1], status_code,
msg_prefix + "Initial response didn't redirect as expected:"
" Response code was %d (expected %d)" %
(response.redirect_chain[0][1], status_code))
url, status_code = response.redirect_chain[-1]
self.assertEqual(response.status_code, target_status_code,
msg_prefix + "Response didn't redirect as expected: Final"
" Response code was %d (expected %d)" %
(response.status_code, target_status_code))
else:
# Not a followed redirect
self.assertEqual(response.status_code, status_code,
msg_prefix + "Response didn't redirect as expected: Response"
" code was %d (expected %d)" %
(response.status_code, status_code))
url = response['Location']
scheme, netloc, path, query, fragment = urlsplit(url)
redirect_response = response.client.get(path, QueryDict(query))
# Get the redirection page, using the same client that was used
# to obtain the original response.
self.assertEqual(redirect_response.status_code, target_status_code,
msg_prefix + "Couldn't retrieve redirection page '%s':"
" response code was %d (expected %d)" %
(path, redirect_response.status_code, target_status_code))
e_scheme, e_netloc, e_path, e_query, e_fragment = urlsplit(
expected_url)
if not (e_scheme or e_netloc):
expected_url = urlunsplit(('http', host or 'testserver', e_path,
e_query, e_fragment))
self.assertEqual(url, expected_url,
msg_prefix + "Response redirected to '%s', expected '%s'" %
(url, expected_url))
def assertContains(self, response, text, count=None, status_code=200,
msg_prefix='', html=False):
"""
Asserts that a response indicates that some content was retrieved
successfully, (i.e., the HTTP status code was as expected), and that
``text`` occurs ``count`` times in the content of the response.
If ``count`` is None, the count doesn't matter - the assertion is true
if the text occurs at least once in the response.
"""
# If the response supports deferred rendering and hasn't been rendered
# yet, then ensure that it does get rendered before proceeding further.
if (hasattr(response, 'render') and callable(response.render)
and not response.is_rendered):
response.render()
if msg_prefix:
msg_prefix += ": "
self.assertEqual(response.status_code, status_code,
msg_prefix + "Couldn't retrieve content: Response code was %d"
" (expected %d)" % (response.status_code, status_code))
text = smart_str(text, response._charset)
content = response.content
if html:
content = assert_and_parse_html(self, content, None,
u'Response\'s content is no valid html:')
text = assert_and_parse_html(self, text, None,
u'Second argument is no valid html:')
real_count = content.count(text)
if count is not None:
self.assertEqual(real_count, count,
msg_prefix + "Found %d instances of '%s' in response"
" (expected %d)" % (real_count, text, count))
else:
self.assertTrue(real_count != 0,
msg_prefix + "Couldn't find '%s' in response" % text)
def assertNotContains(self, response, text, status_code=200,
msg_prefix='', html=False):
"""
Asserts that a response indicates that some content was retrieved
successfully, (i.e., the HTTP status code was as expected), and that
``text`` doesn't occurs in the content of the response.
"""
# If the response supports deferred rendering and hasn't been rendered
# yet, then ensure that it does get rendered before proceeding further.
if (hasattr(response, 'render') and callable(response.render)
and not response.is_rendered):
response.render()
if msg_prefix:
msg_prefix += ": "
self.assertEqual(response.status_code, status_code,
msg_prefix + "Couldn't retrieve content: Response code was %d"
" (expected %d)" % (response.status_code, status_code))
text = smart_str(text, response._charset)
content = response.content
if html:
content = assert_and_parse_html(self, content, None,
u'Response\'s content is no valid html:')
text = assert_and_parse_html(self, text, None,
u'Second argument is no valid html:')
self.assertEqual(content.count(text), 0,
msg_prefix + "Response should not contain '%s'" % text)
def assertFormError(self, response, form, field, errors, msg_prefix=''):
"""
Asserts that a form used to render the response has a specific field
error.
"""
if msg_prefix:
msg_prefix += ": "
# Put context(s) into a list to simplify processing.
contexts = to_list(response.context)
if not contexts:
self.fail(msg_prefix + "Response did not use any contexts to "
"render the response")
# Put error(s) into a list to simplify processing.
errors = to_list(errors)
# Search all contexts for the error.
found_form = False
for i,context in enumerate(contexts):
if form not in context:
continue
found_form = True
for err in errors:
if field:
if field in context[form].errors:
field_errors = context[form].errors[field]
self.assertTrue(err in field_errors,
msg_prefix + "The field '%s' on form '%s' in"
" context %d does not contain the error '%s'"
" (actual errors: %s)" %
(field, form, i, err, repr(field_errors)))
elif field in context[form].fields:
self.fail(msg_prefix + "The field '%s' on form '%s'"
" in context %d contains no errors" %
(field, form, i))
else:
self.fail(msg_prefix + "The form '%s' in context %d"
" does not contain the field '%s'" %
(form, i, field))
else:
non_field_errors = context[form].non_field_errors()
self.assertTrue(err in non_field_errors,
msg_prefix + "The form '%s' in context %d does not"
" contain the non-field error '%s'"
" (actual errors: %s)" %
(form, i, err, non_field_errors))
if not found_form:
self.fail(msg_prefix + "The form '%s' was not used to render the"
" response" % form)
def assertTemplateUsed(self, response=None, template_name=None, msg_prefix=''):
"""
Asserts that the template with the provided name was used in rendering
the response. Also useable as context manager.
"""
if response is None and template_name is None:
raise TypeError(u'response and/or template_name argument must be provided')
if msg_prefix:
msg_prefix += ": "
# use assertTemplateUsed as context manager
if not hasattr(response, 'templates') or (response is None and template_name):
if response:
template_name = response
response = None
context = _AssertTemplateUsedContext(self, template_name)
return context
template_names = [t.name for t in response.templates]
if not template_names:
self.fail(msg_prefix + "No templates used to render the response")
self.assertTrue(template_name in template_names,
msg_prefix + "Template '%s' was not a template used to render"
" the response. Actual template(s) used: %s" %
(template_name, u', '.join(template_names)))
def assertTemplateNotUsed(self, response=None, template_name=None, msg_prefix=''):
"""
Asserts that the template with the provided name was NOT used in
rendering the response. Also useable as context manager.
"""
if response is None and template_name is None:
raise TypeError(u'response and/or template_name argument must be provided')
if msg_prefix:
msg_prefix += ": "
# use assertTemplateUsed as context manager
if not hasattr(response, 'templates') or (response is None and template_name):
if response:
template_name = response
response = None
context = _AssertTemplateNotUsedContext(self, template_name)
return context
template_names = [t.name for t in response.templates]
self.assertFalse(template_name in template_names,
msg_prefix + "Template '%s' was used unexpectedly in rendering"
" the response" % template_name)
def assertQuerysetEqual(self, qs, values, transform=repr, ordered=True):
if not ordered:
return self.assertEqual(set(map(transform, qs)), set(values))
return self.assertEqual(map(transform, qs), values)
def assertNumQueries(self, num, func=None, *args, **kwargs):
using = kwargs.pop("using", DEFAULT_DB_ALIAS)
conn = connections[using]
context = _AssertNumQueriesContext(self, num, conn)
if func is None:
return context
with context:
func(*args, **kwargs)
def connections_support_transactions():
"""
Returns True if all connections support transactions.
"""
return all(conn.features.supports_transactions
for conn in connections.all())
class TestCase(TransactionTestCase):
"""
Does basically the same as TransactionTestCase, but surrounds every test
with a transaction, monkey-patches the real transaction management routines
to do nothing, and rollsback the test transaction at the end of the test.
You have to use TransactionTestCase, if you need transaction management
inside a test.
"""
def _fixture_setup(self):
if not connections_support_transactions():
return super(TestCase, self)._fixture_setup()
# If the test case has a multi_db=True flag, setup all databases.
# Otherwise, just use default.
if getattr(self, 'multi_db', False):
databases = connections
else:
databases = [DEFAULT_DB_ALIAS]
for db in databases:
transaction.enter_transaction_management(using=db)
transaction.managed(True, using=db)
disable_transaction_methods()
from django.contrib.sites.models import Site
Site.objects.clear_cache()
for db in databases:
if hasattr(self, 'fixtures'):
call_command('loaddata', *self.fixtures,
**{
'verbosity': 0,
'commit': False,
'database': db
})
def _fixture_teardown(self):
if not connections_support_transactions():
return super(TestCase, self)._fixture_teardown()
# If the test case has a multi_db=True flag, teardown all databases.
# Otherwise, just teardown default.
if getattr(self, 'multi_db', False):
databases = connections
else:
databases = [DEFAULT_DB_ALIAS]
restore_transaction_methods()
for db in databases:
transaction.rollback(using=db)
transaction.leave_transaction_management(using=db)
def _deferredSkip(condition, reason):
def decorator(test_func):
if not (isinstance(test_func, type) and
issubclass(test_func, TestCase)):
@wraps(test_func)
def skip_wrapper(*args, **kwargs):
if condition():
raise ut2.SkipTest(reason)
return test_func(*args, **kwargs)
test_item = skip_wrapper
else:
test_item = test_func
test_item.__unittest_skip_why__ = reason
return test_item
return decorator
def skipIfDBFeature(feature):
"""
Skip a test if a database has the named feature
"""
return _deferredSkip(lambda: getattr(connection.features, feature),
"Database has feature %s" % feature)
def skipUnlessDBFeature(feature):
"""
Skip a test unless a database has the named feature
"""
return _deferredSkip(lambda: not getattr(connection.features, feature),
"Database doesn't support feature %s" % feature)
class QuietWSGIRequestHandler(WSGIRequestHandler):
"""
Just a regular WSGIRequestHandler except it doesn't log to the standard
output any of the requests received, so as to not clutter the output for
the tests' results.
"""
def log_message(*args):
pass
class _ImprovedEvent(threading._Event):
"""
Does the same as `threading.Event` except it overrides the wait() method
with some code borrowed from Python 2.7 to return the set state of the
event (see: http://hg.python.org/cpython/rev/b5aa8aa78c0f/). This allows
to know whether the wait() method exited normally or because of the
timeout. This class can be removed when Django supports only Python >= 2.7.
"""
def wait(self, timeout=None):
self._Event__cond.acquire()
try:
if not self._Event__flag:
self._Event__cond.wait(timeout)
return self._Event__flag
finally:
self._Event__cond.release()
class StoppableWSGIServer(WSGIServer):
"""
The code in this class is borrowed from the `SocketServer.BaseServer` class
in Python 2.6. The important functionality here is that the server is non-
blocking and that it can be shut down at any moment. This is made possible
by the server regularly polling the socket and checking if it has been
asked to stop.
Note for the future: Once Django stops supporting Python 2.6, this class
can be removed as `WSGIServer` will have this ability to shutdown on
demand and will not require the use of the _ImprovedEvent class whose code
is borrowed from Python 2.7.
"""
def __init__(self, *args, **kwargs):
super(StoppableWSGIServer, self).__init__(*args, **kwargs)
self.__is_shut_down = _ImprovedEvent()
self.__serving = False
def serve_forever(self, poll_interval=0.5):
"""
Handle one request at a time until shutdown.
Polls for shutdown every poll_interval seconds.
"""
self.__serving = True
self.__is_shut_down.clear()
while self.__serving:
r, w, e = select.select([self], [], [], poll_interval)
if r:
self._handle_request_noblock()
self.__is_shut_down.set()
def shutdown(self):
"""
Stops the serve_forever loop.
Blocks until the loop has finished. This must be called while
serve_forever() is running in another thread, or it will
deadlock.
"""
self.__serving = False
if not self.__is_shut_down.wait(2):
raise RuntimeError(
"Failed to shutdown the live test server in 2 seconds. The "
"server might be stuck or generating a slow response.")
def handle_request(self):
"""Handle one request, possibly blocking.
"""
fd_sets = select.select([self], [], [], None)
if not fd_sets[0]:
return
self._handle_request_noblock()
def _handle_request_noblock(self):
"""
Handle one request, without blocking.
I assume that select.select has returned that the socket is
readable before this function was called, so there should be
no risk of blocking in get_request().
"""
try:
request, client_address = self.get_request()
except socket.error:
return
if self.verify_request(request, client_address):
try:
self.process_request(request, client_address)
except Exception:
self.handle_error(request, client_address)
self.close_request(request)
class _MediaFilesHandler(StaticFilesHandler):
"""
Handler for serving the media files. This is a private class that is
meant to be used solely as a convenience by LiveServerThread.
"""
def get_base_dir(self):
return settings.MEDIA_ROOT
def get_base_url(self):
return settings.MEDIA_URL
def serve(self, request):
return serve(request, self.file_path(request.path),
document_root=self.get_base_dir())