-
-
Notifications
You must be signed in to change notification settings - Fork 231
/
test_command.py
1280 lines (1074 loc) · 42.7 KB
/
test_command.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 contextlib import contextmanager
import inspect
from io import BytesIO
from io import StringIO
from io import TextIOWrapper
import os
import re
from typing import cast
from sqlalchemy import exc as sqla_exc
from sqlalchemy import text
from sqlalchemy import VARCHAR
from sqlalchemy.engine import Engine
from sqlalchemy.sql.schema import Column
from alembic import __version__
from alembic import command
from alembic import config
from alembic import util
from alembic.script import ScriptDirectory
from alembic.testing import assert_raises
from alembic.testing import assert_raises_message
from alembic.testing import eq_
from alembic.testing import is_false
from alembic.testing import is_true
from alembic.testing import mock
from alembic.testing.env import _get_staging_directory
from alembic.testing.env import _no_sql_testing_config
from alembic.testing.env import _sqlite_file_db
from alembic.testing.env import _sqlite_testing_config
from alembic.testing.env import clear_staging_env
from alembic.testing.env import env_file_fixture
from alembic.testing.env import multi_heads_fixture
from alembic.testing.env import staging_env
from alembic.testing.env import three_rev_fixture
from alembic.testing.env import write_script
from alembic.testing.fixtures import capture_context_buffer
from alembic.testing.fixtures import capture_engine_context_buffer
from alembic.testing.fixtures import TestBase
from alembic.util.sqla_compat import _connectable_has_table
class _BufMixin:
def _buf_fixture(self):
# try to simulate how sys.stdout looks - we send it u''
# but then it's trying to encode to something.
buf = BytesIO()
wrapper = TextIOWrapper(buf, encoding="ascii", line_buffering=True)
wrapper.getvalue = buf.getvalue
return wrapper
class HistoryTest(_BufMixin, TestBase):
@classmethod
def setup_class(cls):
cls.env = staging_env()
cls.cfg = _sqlite_testing_config()
cls.a, cls.b, cls.c = three_rev_fixture(cls.cfg)
cls._setup_env_file()
@classmethod
def teardown_class(cls):
clear_staging_env()
def teardown(self):
self.cfg.set_main_option("revision_environment", "false")
@classmethod
def _setup_env_file(self):
env_file_fixture(
r"""
from sqlalchemy import MetaData, engine_from_config
target_metadata = MetaData()
engine = engine_from_config(
config.get_section(config.config_ini_section),
prefix='sqlalchemy.')
connection = engine.connect()
context.configure(
connection=connection, target_metadata=target_metadata
)
try:
with context.begin_transaction():
config.stdout.write(u"environment included OK\n")
context.run_migrations()
finally:
connection.close()
engine.dispose()
"""
)
def _eq_cmd_output(self, buf, expected, env_token=False, currents=()):
script = ScriptDirectory.from_config(self.cfg)
# test default encode/decode behavior as well,
# rev B has a non-ascii char in it + a coding header.
assert_lines = []
for _id in expected:
rev = script.get_revision(_id)
if _id in currents:
rev._db_current_indicator = True
assert_lines.append(rev.log_entry)
if env_token:
assert_lines.insert(0, "environment included OK")
actual = (
buf.getvalue()
.decode("ascii", "replace")
.replace(os.linesep, "\n")
.strip()
)
eq_(
actual,
"\n".join(assert_lines)
.encode("ascii", "replace")
.decode("ascii")
.strip(),
)
def test_history_full(self):
self.cfg.stdout = buf = self._buf_fixture()
command.history(self.cfg, verbose=True)
self._eq_cmd_output(buf, [self.c, self.b, self.a])
def test_history_full_environment(self):
self.cfg.stdout = buf = self._buf_fixture()
self.cfg.set_main_option("revision_environment", "true")
command.history(self.cfg, verbose=True)
self._eq_cmd_output(buf, [self.c, self.b, self.a], env_token=True)
def test_history_num_range(self):
self.cfg.stdout = buf = self._buf_fixture()
command.history(self.cfg, "%s:%s" % (self.a, self.b), verbose=True)
self._eq_cmd_output(buf, [self.b, self.a])
def test_history_num_range_environment(self):
self.cfg.stdout = buf = self._buf_fixture()
self.cfg.set_main_option("revision_environment", "true")
command.history(self.cfg, "%s:%s" % (self.a, self.b), verbose=True)
self._eq_cmd_output(buf, [self.b, self.a], env_token=True)
def test_history_base_to_num(self):
self.cfg.stdout = buf = self._buf_fixture()
command.history(self.cfg, ":%s" % (self.b), verbose=True)
self._eq_cmd_output(buf, [self.b, self.a])
def test_history_num_to_head(self):
self.cfg.stdout = buf = self._buf_fixture()
command.history(self.cfg, "%s:" % (self.a), verbose=True)
self._eq_cmd_output(buf, [self.c, self.b, self.a])
def test_history_num_to_head_environment(self):
self.cfg.stdout = buf = self._buf_fixture()
self.cfg.set_main_option("revision_environment", "true")
command.history(self.cfg, "%s:" % (self.a), verbose=True)
self._eq_cmd_output(buf, [self.c, self.b, self.a], env_token=True)
def test_history_num_plus_relative(self):
self.cfg.stdout = buf = self._buf_fixture()
command.history(self.cfg, "%s:+2" % (self.a), verbose=True)
self._eq_cmd_output(buf, [self.c, self.b, self.a])
def test_history_relative_to_num(self):
self.cfg.stdout = buf = self._buf_fixture()
command.history(self.cfg, "-2:%s" % (self.c), verbose=True)
self._eq_cmd_output(buf, [self.c, self.b, self.a])
def test_history_too_large_relative_to_num(self):
self.cfg.stdout = buf = self._buf_fixture()
command.history(self.cfg, "-5:%s" % (self.c), verbose=True)
self._eq_cmd_output(buf, [self.c, self.b, self.a])
def test_history_current_to_head_as_b(self):
command.stamp(self.cfg, self.b)
self.cfg.stdout = buf = self._buf_fixture()
command.history(self.cfg, "current:", verbose=True)
self._eq_cmd_output(buf, [self.c, self.b], env_token=True)
def test_history_current_to_head_as_base(self):
command.stamp(self.cfg, "base")
self.cfg.stdout = buf = self._buf_fixture()
command.history(self.cfg, "current:", verbose=True)
self._eq_cmd_output(buf, [self.c, self.b, self.a], env_token=True)
def test_history_include_env(self):
self.cfg.stdout = buf = self._buf_fixture()
self.cfg.set_main_option("revision_environment", "true")
command.history(self.cfg, verbose=True)
self._eq_cmd_output(buf, [self.c, self.b, self.a], env_token=True)
def test_history_indicate_current(self):
command.stamp(self.cfg, (self.b,))
self.cfg.stdout = buf = self._buf_fixture()
command.history(self.cfg, indicate_current=True, verbose=True)
self._eq_cmd_output(
buf, [self.c, self.b, self.a], currents=(self.b,), env_token=True
)
class CurrentTest(_BufMixin, TestBase):
@classmethod
def setup_class(cls):
cls.bind = _sqlite_file_db(scope="class")
cls.env = env = staging_env()
cls.cfg = _sqlite_testing_config()
cls.a1 = env.generate_revision("a1", "a1")
cls.a2 = env.generate_revision("a2", "a2")
cls.a3 = env.generate_revision("a3", "a3")
cls.b1 = env.generate_revision("b1", "b1", head="base")
cls.b2 = env.generate_revision("b2", "b2", head="b1", depends_on="a2")
cls.b3 = env.generate_revision("b3", "b3", head="b2")
@classmethod
def teardown_class(cls):
clear_staging_env()
@contextmanager
def _assert_lines(self, revs):
self.cfg.stdout = buf = self._buf_fixture()
yield
lines = {
re.match(r"(^.\w)", elem).group(1)
for elem in re.split(
"\n", buf.getvalue().decode("ascii", "replace").strip()
)
if elem
}
eq_(lines, set(revs))
def test_doesnt_create_alembic_version(self):
command.current(self.cfg)
engine = self.bind
with engine.connect() as conn:
is_false(_connectable_has_table(conn, "alembic_version", None))
def test_no_current(self):
command.stamp(self.cfg, ())
with self._assert_lines([]):
command.current(self.cfg)
def test_plain_current(self):
command.stamp(self.cfg, ())
command.stamp(self.cfg, self.a3.revision)
with self._assert_lines(["a3"]):
command.current(self.cfg)
def test_current_obfuscate_password(self):
eq_(
util.obfuscate_url_pw("postgresql://scott:tiger@localhost/test"),
"postgresql://scott:***@localhost/test",
)
def test_two_heads(self):
command.stamp(self.cfg, ())
command.stamp(self.cfg, (self.a1.revision, self.b1.revision))
with self._assert_lines(["a1", "b1"]):
command.current(self.cfg)
def test_heads_one_is_dependent(self):
command.stamp(self.cfg, ())
command.stamp(self.cfg, (self.b2.revision,))
with self._assert_lines(["a2", "b2"]):
command.current(self.cfg)
def test_heads_upg(self):
command.stamp(self.cfg, (self.b2.revision,))
command.upgrade(self.cfg, (self.b3.revision))
with self._assert_lines(["a2", "b3"]):
command.current(self.cfg)
class RevisionTest(TestBase):
def setUp(self):
self.env = staging_env()
self.cfg = _sqlite_testing_config()
def tearDown(self):
clear_staging_env()
def _env_fixture(self, version_table_pk=True):
env_file_fixture(
"""
from sqlalchemy import MetaData, engine_from_config
target_metadata = MetaData()
engine = engine_from_config(
config.get_section(config.config_ini_section),
prefix='sqlalchemy.')
connection = engine.connect()
context.configure(
connection=connection, target_metadata=target_metadata,
version_table_pk=%r
)
try:
with context.begin_transaction():
context.run_migrations()
finally:
connection.close()
engine.dispose()
"""
% (version_table_pk,)
)
def test_create_rev_plain_db_not_up_to_date(self):
self._env_fixture()
command.revision(self.cfg)
command.revision(self.cfg) # no problem
def test_create_rev_autogen(self):
self._env_fixture()
command.revision(self.cfg, autogenerate=True)
def test_create_rev_autogen_db_not_up_to_date(self):
self._env_fixture()
assert command.revision(self.cfg)
assert_raises_message(
util.CommandError,
"Target database is not up to date.",
command.revision,
self.cfg,
autogenerate=True,
)
def test_create_rev_autogen_db_not_up_to_date_multi_heads(self):
self._env_fixture()
command.revision(self.cfg)
rev2 = command.revision(self.cfg)
rev3a = command.revision(self.cfg)
command.revision(self.cfg, head=rev2.revision, splice=True)
command.upgrade(self.cfg, "heads")
command.revision(self.cfg, head=rev3a.revision)
assert_raises_message(
util.CommandError,
"Target database is not up to date.",
command.revision,
self.cfg,
autogenerate=True,
)
def test_create_rev_plain_db_not_up_to_date_multi_heads(self):
self._env_fixture()
command.revision(self.cfg)
rev2 = command.revision(self.cfg)
rev3a = command.revision(self.cfg)
command.revision(self.cfg, head=rev2.revision, splice=True)
command.upgrade(self.cfg, "heads")
command.revision(self.cfg, head=rev3a.revision)
assert_raises_message(
util.CommandError,
"Multiple heads are present; please specify the head revision "
"on which the new revision should be based, or perform a merge.",
command.revision,
self.cfg,
)
def test_create_rev_autogen_need_to_select_head(self):
self._env_fixture()
command.revision(self.cfg)
rev2 = command.revision(self.cfg)
command.revision(self.cfg)
command.revision(self.cfg, head=rev2.revision, splice=True)
command.upgrade(self.cfg, "heads")
# there's multiple heads present
assert_raises_message(
util.CommandError,
"Multiple heads are present; please specify the head revision "
"on which the new revision should be based, or perform a merge.",
command.revision,
self.cfg,
autogenerate=True,
)
def test_pk_constraint_normally_prevents_dupe_rows(self):
self._env_fixture()
command.revision(self.cfg)
r2 = command.revision(self.cfg)
db = _sqlite_file_db()
command.upgrade(self.cfg, "head")
with db.connect() as conn:
assert_raises(
sqla_exc.IntegrityError,
conn.execute,
text(
"insert into alembic_version values ('%s')" % r2.revision
),
)
def test_err_correctly_raised_on_dupe_rows_no_pk(self):
self._env_fixture(version_table_pk=False)
command.revision(self.cfg)
r2 = command.revision(self.cfg)
db = _sqlite_file_db()
command.upgrade(self.cfg, "head")
with db.begin() as conn:
conn.execute(
text("insert into alembic_version values ('%s')" % r2.revision)
)
assert_raises_message(
util.CommandError,
"Online migration expected to match one row when "
"updating .* in 'alembic_version'; 2 found",
command.downgrade,
self.cfg,
"-1",
)
def test_create_rev_plain_need_to_select_head(self):
self._env_fixture()
command.revision(self.cfg)
rev2 = command.revision(self.cfg)
command.revision(self.cfg)
command.revision(self.cfg, head=rev2.revision, splice=True)
command.upgrade(self.cfg, "heads")
# there's multiple heads present
assert_raises_message(
util.CommandError,
"Multiple heads are present; please specify the head revision "
"on which the new revision should be based, or perform a merge.",
command.revision,
self.cfg,
)
def test_create_rev_plain_post_merge(self):
self._env_fixture()
command.revision(self.cfg)
rev2 = command.revision(self.cfg)
command.revision(self.cfg)
command.revision(self.cfg, head=rev2.revision, splice=True)
command.merge(self.cfg, "heads")
command.revision(self.cfg)
def test_create_rev_autogenerate_post_merge(self):
self._env_fixture()
command.revision(self.cfg)
rev2 = command.revision(self.cfg)
command.revision(self.cfg)
command.revision(self.cfg, head=rev2.revision, splice=True)
command.merge(self.cfg, "heads")
command.upgrade(self.cfg, "heads")
command.revision(self.cfg, autogenerate=True)
def test_create_rev_depends_on(self):
self._env_fixture()
command.revision(self.cfg)
rev2 = command.revision(self.cfg)
rev3 = command.revision(self.cfg, depends_on=rev2.revision)
eq_(rev3._resolved_dependencies, (rev2.revision,))
rev4 = command.revision(
self.cfg, depends_on=[rev2.revision, rev3.revision]
)
eq_(rev4._resolved_dependencies, (rev2.revision, rev3.revision))
def test_create_rev_depends_on_branch_label(self):
self._env_fixture()
command.revision(self.cfg)
rev2 = command.revision(self.cfg, branch_label="foobar")
rev3 = command.revision(self.cfg, depends_on="foobar")
eq_(rev3.dependencies, "foobar")
eq_(rev3._resolved_dependencies, (rev2.revision,))
def test_create_rev_depends_on_partial_revid(self):
self._env_fixture()
command.revision(self.cfg)
rev2 = command.revision(self.cfg)
assert len(rev2.revision) > 7
rev3 = command.revision(self.cfg, depends_on=rev2.revision[0:4])
eq_(rev3.dependencies, rev2.revision)
eq_(rev3._resolved_dependencies, (rev2.revision,))
def test_create_rev_invalid_depends_on(self):
self._env_fixture()
command.revision(self.cfg)
assert_raises_message(
util.CommandError,
"Can't locate revision identified by 'invalid'",
command.revision,
self.cfg,
depends_on="invalid",
)
def test_create_rev_autogenerate_db_not_up_to_date_post_merge(self):
self._env_fixture()
command.revision(self.cfg)
rev2 = command.revision(self.cfg)
command.revision(self.cfg)
command.revision(self.cfg, head=rev2.revision, splice=True)
command.upgrade(self.cfg, "heads")
command.merge(self.cfg, "heads")
assert_raises_message(
util.CommandError,
"Target database is not up to date.",
command.revision,
self.cfg,
autogenerate=True,
)
def test_nonsensical_sql_mode_autogen(self):
self._env_fixture()
assert_raises_message(
util.CommandError,
"Using --sql with --autogenerate does not make any sense",
command.revision,
self.cfg,
autogenerate=True,
sql=True,
)
def test_nonsensical_sql_no_env(self):
self._env_fixture()
assert_raises_message(
util.CommandError,
"Using --sql with the revision command when revision_environment "
"is not configured does not make any sense",
command.revision,
self.cfg,
sql=True,
)
def test_sensical_sql_w_env(self):
self._env_fixture()
self.cfg.set_main_option("revision_environment", "true")
command.revision(self.cfg, sql=True)
class CheckTest(TestBase):
def setUp(self):
self.env = staging_env()
self.cfg = _sqlite_testing_config()
def tearDown(self):
clear_staging_env()
def _env_fixture(self, version_table_pk=True):
env_file_fixture(
"""
from sqlalchemy import MetaData, engine_from_config
target_metadata = MetaData()
engine = engine_from_config(
config.get_section(config.config_ini_section),
prefix='sqlalchemy.')
connection = engine.connect()
context.configure(
connection=connection, target_metadata=target_metadata,
version_table_pk=%r
)
try:
with context.begin_transaction():
context.run_migrations()
finally:
connection.close()
engine.dispose()
"""
% (version_table_pk,)
)
def test_check_no_changes(self):
self._env_fixture()
command.check(self.cfg) # no problem
def test_check_changes_detected(self):
self._env_fixture()
with mock.patch(
"alembic.operations.ops.UpgradeOps.as_diffs",
return_value=[
("remove_column", None, "foo", Column("old_data", VARCHAR()))
],
):
assert_raises_message(
util.AutogenerateDiffsDetected,
r"New upgrade operations detected: \[\('remove_column'",
command.check,
self.cfg,
)
class _StampTest:
def _assert_sql(self, emitted_sql, origin, destinations):
ins_expr = (
r"INSERT INTO alembic_version \(version_num\) "
r"VALUES \('(.+)'\)"
)
expected = [ins_expr for elem in destinations]
if origin:
expected[0] = (
"UPDATE alembic_version SET version_num='(.+)' WHERE "
"alembic_version.version_num = '%s'" % (origin,)
)
for line in emitted_sql.split("\n"):
if not expected:
assert not re.match(
ins_expr, line
), "additional inserts were emitted"
else:
m = re.match(expected[0], line)
if m:
destinations.remove(m.group(1))
expected.pop(0)
assert not expected, "lines remain"
class StampMultipleRootsTest(TestBase, _StampTest):
def setUp(self):
self.env = staging_env()
# self.cfg = cfg = _no_sql_testing_config()
self.cfg = cfg = _sqlite_testing_config()
# cfg.set_main_option("dialect_name", "sqlite")
# cfg.remove_main_option("url")
self.a1, self.b1, self.c1 = three_rev_fixture(cfg)
self.a2, self.b2, self.c2 = three_rev_fixture(cfg)
def tearDown(self):
clear_staging_env()
def test_sql_stamp_heads(self):
with capture_context_buffer() as buf:
command.stamp(self.cfg, ["heads"], sql=True)
self._assert_sql(buf.getvalue(), None, {self.c1, self.c2})
def test_sql_stamp_single_head(self):
with capture_context_buffer() as buf:
command.stamp(self.cfg, ["%s@head" % self.c1], sql=True)
self._assert_sql(buf.getvalue(), None, {self.c1})
class StampMultipleHeadsTest(TestBase, _StampTest):
def setUp(self):
self.env = staging_env()
# self.cfg = cfg = _no_sql_testing_config()
self.cfg = cfg = _sqlite_testing_config()
# cfg.set_main_option("dialect_name", "sqlite")
# cfg.remove_main_option("url")
self.a, self.b, self.c = three_rev_fixture(cfg)
self.d, self.e, self.f = multi_heads_fixture(
cfg, self.a, self.b, self.c
)
def tearDown(self):
clear_staging_env()
def test_sql_stamp_heads(self):
with capture_context_buffer() as buf:
command.stamp(self.cfg, ["heads"], sql=True)
self._assert_sql(buf.getvalue(), None, {self.c, self.e, self.f})
def test_sql_stamp_multi_rev_nonsensical(self):
with capture_context_buffer() as buf:
command.stamp(self.cfg, [self.a, self.e, self.f], sql=True)
# TODO: this shouldn't be possible, because e/f require b as a
# dependency
self._assert_sql(buf.getvalue(), None, {self.a, self.e, self.f})
def test_sql_stamp_multi_rev_from_multi_base_nonsensical(self):
with capture_context_buffer() as buf:
command.stamp(
self.cfg,
["base:%s" % self.a, "base:%s" % self.e, "base:%s" % self.f],
sql=True,
)
# TODO: this shouldn't be possible, because e/f require b as a
# dependency
self._assert_sql(buf.getvalue(), None, {self.a, self.e, self.f})
def test_online_stamp_multi_rev_nonsensical(self):
with capture_engine_context_buffer() as buf:
command.stamp(self.cfg, [self.a, self.e, self.f])
# TODO: this shouldn't be possible, because e/f require b as a
# dependency
self._assert_sql(buf.getvalue(), None, {self.a, self.e, self.f})
def test_online_stamp_multi_rev_from_real_ancestor(self):
command.stamp(self.cfg, [self.a])
with capture_engine_context_buffer() as buf:
command.stamp(self.cfg, [self.e, self.f])
self._assert_sql(buf.getvalue(), self.a, {self.e, self.f})
def test_online_stamp_version_already_there(self):
command.stamp(self.cfg, [self.c, self.e])
with capture_engine_context_buffer() as buf:
command.stamp(self.cfg, [self.c, self.e])
self._assert_sql(buf.getvalue(), None, {})
def test_sql_stamp_multi_rev_from_multi_start(self):
with capture_context_buffer() as buf:
command.stamp(
self.cfg,
[
"%s:%s" % (self.b, self.c),
"%s:%s" % (self.b, self.e),
"%s:%s" % (self.b, self.f),
],
sql=True,
)
self._assert_sql(buf.getvalue(), self.b, {self.c, self.e, self.f})
def test_sql_stamp_heads_symbolic(self):
with capture_context_buffer() as buf:
command.stamp(self.cfg, ["%s:heads" % self.b], sql=True)
self._assert_sql(buf.getvalue(), self.b, {self.c, self.e, self.f})
def test_sql_stamp_different_multi_start(self):
assert_raises_message(
util.CommandError,
"Stamp operation with --sql only supports a single "
"starting revision at a time",
command.stamp,
self.cfg,
["%s:%s" % (self.b, self.c), "%s:%s" % (self.a, self.e)],
sql=True,
)
def test_stamp_purge(self):
command.stamp(self.cfg, [self.a])
eng = _sqlite_file_db()
with eng.begin() as conn:
result = conn.execute(
text("update alembic_version set version_num='fake'")
)
eq_(result.rowcount, 1)
with capture_engine_context_buffer() as buf:
command.stamp(self.cfg, [self.a, self.e, self.f], purge=True)
self._assert_sql(buf.getvalue(), None, {self.a, self.e, self.f})
def test_stamp_purge_no_sql(self):
assert_raises_message(
util.CommandError,
"Can't use --purge with --sql mode",
command.stamp,
self.cfg,
[self.c],
sql=True,
purge=True,
)
class UpgradeDowngradeStampTest(TestBase):
def setUp(self):
self.env = staging_env()
self.cfg = cfg = _no_sql_testing_config()
cfg.set_main_option("dialect_name", "sqlite")
cfg.remove_main_option("url")
self.a, self.b, self.c = three_rev_fixture(cfg)
def tearDown(self):
clear_staging_env()
def test_version_from_none_insert(self):
with capture_context_buffer() as buf:
command.upgrade(self.cfg, self.a, sql=True)
assert "CREATE TABLE alembic_version" in buf.getvalue()
assert "INSERT INTO alembic_version" in buf.getvalue()
assert "CREATE STEP 1" in buf.getvalue()
assert "CREATE STEP 2" not in buf.getvalue()
assert "CREATE STEP 3" not in buf.getvalue()
def test_version_from_middle_update(self):
with capture_context_buffer() as buf:
command.upgrade(self.cfg, "%s:%s" % (self.b, self.c), sql=True)
assert "CREATE TABLE alembic_version" not in buf.getvalue()
assert "UPDATE alembic_version" in buf.getvalue()
assert "CREATE STEP 1" not in buf.getvalue()
assert "CREATE STEP 2" not in buf.getvalue()
assert "CREATE STEP 3" in buf.getvalue()
def test_version_to_none(self):
with capture_context_buffer() as buf:
command.downgrade(self.cfg, "%s:base" % self.c, sql=True)
assert "CREATE TABLE alembic_version" not in buf.getvalue()
assert "INSERT INTO alembic_version" not in buf.getvalue()
assert "DROP TABLE alembic_version" in buf.getvalue()
assert "DROP STEP 3" in buf.getvalue()
assert "DROP STEP 2" in buf.getvalue()
assert "DROP STEP 1" in buf.getvalue()
def test_version_to_middle(self):
with capture_context_buffer() as buf:
command.downgrade(self.cfg, "%s:%s" % (self.c, self.a), sql=True)
assert "CREATE TABLE alembic_version" not in buf.getvalue()
assert "INSERT INTO alembic_version" not in buf.getvalue()
assert "DROP TABLE alembic_version" not in buf.getvalue()
assert "DROP STEP 3" in buf.getvalue()
assert "DROP STEP 2" in buf.getvalue()
assert "DROP STEP 1" not in buf.getvalue()
def test_none_to_head_sql(self):
with capture_context_buffer() as buf:
command.upgrade(self.cfg, "head", sql=True)
assert "CREATE TABLE alembic_version" in buf.getvalue()
assert "UPDATE alembic_version" in buf.getvalue()
assert "CREATE STEP 1" in buf.getvalue()
assert "CREATE STEP 2" in buf.getvalue()
assert "CREATE STEP 3" in buf.getvalue()
def test_base_to_head_sql(self):
with capture_context_buffer() as buf:
command.upgrade(self.cfg, "base:head", sql=True)
assert "CREATE TABLE alembic_version" in buf.getvalue()
assert "UPDATE alembic_version" in buf.getvalue()
assert "CREATE STEP 1" in buf.getvalue()
assert "CREATE STEP 2" in buf.getvalue()
assert "CREATE STEP 3" in buf.getvalue()
def test_sql_stamp_from_rev(self):
with capture_context_buffer() as buf:
command.stamp(self.cfg, "%s:head" % self.a, sql=True)
assert (
"UPDATE alembic_version "
"SET version_num='%s' "
"WHERE alembic_version.version_num = '%s';" % (self.c, self.a)
) in buf.getvalue()
def test_sql_stamp_from_partial_rev(self):
with capture_context_buffer() as buf:
command.stamp(self.cfg, "%s:head" % self.a[0:7], sql=True)
assert (
"UPDATE alembic_version "
"SET version_num='%s' "
"WHERE alembic_version.version_num = '%s';" % (self.c, self.a)
) in buf.getvalue()
def test_sql_stamp_revision_as_kw(self):
with capture_context_buffer() as buf:
command.stamp(self.cfg, revision="head", sql=True)
assert (
"INSERT INTO alembic_version (version_num) VALUES ('%s')" % self.c
in buf.getvalue()
)
def test_stamp_argparser_single_rev(self):
cmd = config.CommandLine()
options = cmd.parser.parse_args(["stamp", self.c, "--sql"])
with capture_context_buffer() as buf:
cmd.run_cmd(self.cfg, options)
assert (
"INSERT INTO alembic_version (version_num) VALUES ('%s')" % self.c
in buf.getvalue()
)
def test_stamp_argparser_multiple_rev(self):
cmd = config.CommandLine()
options = cmd.parser.parse_args(["stamp", self.b, self.c, "--sql"])
with capture_context_buffer() as buf:
cmd.run_cmd(self.cfg, options)
# TODO: this is still wrong, as this stamp command is putting
# conflicting heads into the table. The test here is only to test
# that the revisions are passed as a list.
assert (
"INSERT INTO alembic_version (version_num) VALUES ('%s')" % self.b
in buf.getvalue()
)
assert (
"INSERT INTO alembic_version (version_num) VALUES ('%s')" % self.c
in buf.getvalue()
)
class LiveStampTest(TestBase):
__only_on__ = "sqlite"
def setUp(self):
self.bind = _sqlite_file_db()
self.env = staging_env()
self.cfg = _sqlite_testing_config()
self.a = a = util.rev_id()
self.b = b = util.rev_id()
script = ScriptDirectory.from_config(self.cfg)
script.generate_revision(a, None, refresh=True)
write_script(
script,
a,
"""
revision = '%s'
down_revision = None
"""
% a,
)
script.generate_revision(b, None, refresh=True)
write_script(
script,
b,
"""
revision = '%s'
down_revision = '%s'
"""
% (b, a),
)
def tearDown(self):
clear_staging_env()
def test_stamp_creates_table(self):
command.stamp(self.cfg, "head")
with self.bind.connect() as conn:
eq_(
conn.scalar(text("select version_num from alembic_version")),
self.b,
)
def test_stamp_existing_upgrade(self):
command.stamp(self.cfg, self.a)
command.stamp(self.cfg, self.b)
with self.bind.connect() as conn:
eq_(
conn.scalar(text("select version_num from alembic_version")),
self.b,
)
def test_stamp_existing_downgrade(self):
command.stamp(self.cfg, self.b)
command.stamp(self.cfg, self.a)
with self.bind.connect() as conn:
eq_(
conn.scalar(text("select version_num from alembic_version")),
self.a,
)
def test_stamp_version_already_there(self):
command.stamp(self.cfg, self.b)
command.stamp(self.cfg, self.b)
with self.bind.connect() as conn:
eq_(
conn.scalar(text("select version_num from alembic_version")),
self.b,
)
class EditTest(TestBase):
@classmethod
def setup_class(cls):
cls.env = staging_env()
cls.cfg = _sqlite_testing_config()
cls.a, cls.b, cls.c = three_rev_fixture(cls.cfg)
@classmethod
def teardown_class(cls):
clear_staging_env()
def setUp(self):
command.stamp(self.cfg, "base")
def test_edit_head(self):
expected_call_arg = os.path.normpath(
"%s/scripts/versions/%s_revision_c.py"
% (EditTest.cfg.config_args["here"], EditTest.c)
)
with mock.patch("alembic.util.open_in_editor") as edit:
command.edit(self.cfg, "head")
edit.assert_called_with(expected_call_arg)
def test_edit_b(self):
expected_call_arg = os.path.normpath(
"%s/scripts/versions/%s_revision_b.py"
% (EditTest.cfg.config_args["here"], EditTest.b)
)
with mock.patch("alembic.util.open_in_editor") as edit:
command.edit(self.cfg, self.b[0:3])
edit.assert_called_with(expected_call_arg)
def test_edit_no_revs(self):
assert_raises_message(