aboutsummaryrefslogtreecommitdiffstats
path: root/activerecord/test/cases/base_test.rb
blob: 82b20e8cee2dd5724c447e35030fd25710cb5bf1 (plain) (blame)
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
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
# encoding: utf-8

require "cases/helper"
require 'active_support/concurrency/latch'
require 'models/post'
require 'models/author'
require 'models/topic'
require 'models/reply'
require 'models/category'
require 'models/company'
require 'models/customer'
require 'models/developer'
require 'models/project'
require 'models/default'
require 'models/auto_id'
require 'models/boolean'
require 'models/column_name'
require 'models/subscriber'
require 'models/keyboard'
require 'models/comment'
require 'models/minimalistic'
require 'models/warehouse_thing'
require 'models/parrot'
require 'models/person'
require 'models/edge'
require 'models/joke'
require 'models/bird'
require 'models/car'
require 'models/bulb'
require 'rexml/document'

class FirstAbstractClass < ActiveRecord::Base
  self.abstract_class = true
end
class SecondAbstractClass < FirstAbstractClass
  self.abstract_class = true
end
class Photo < SecondAbstractClass; end
class Category < ActiveRecord::Base; end
class Categorization < ActiveRecord::Base; end
class Smarts < ActiveRecord::Base; end
class CreditCard < ActiveRecord::Base
  class PinNumber < ActiveRecord::Base
    class CvvCode < ActiveRecord::Base; end
    class SubCvvCode < CvvCode; end
  end
  class SubPinNumber < PinNumber; end
  class Brand < Category; end
end
class MasterCreditCard < ActiveRecord::Base; end
class Post < ActiveRecord::Base; end
class Computer < ActiveRecord::Base; end
class NonExistentTable < ActiveRecord::Base; end
class TestOracleDefault < ActiveRecord::Base; end

class ReadonlyTitlePost < Post
  attr_readonly :title
end

class Weird < ActiveRecord::Base; end

class Boolean < ActiveRecord::Base
  def has_fun
    super
  end
end

class LintTest < ActiveRecord::TestCase
  include ActiveModel::Lint::Tests

  class LintModel < ActiveRecord::Base; end

  def setup
    @model = LintModel.new
  end
end

class BasicsTest < ActiveRecord::TestCase
  fixtures :topics, :companies, :developers, :projects, :computers, :accounts, :minimalistics, 'warehouse-things', :authors, :categorizations, :categories, :posts

  def test_generated_methods_modules
    modules = Computer.ancestors
    assert modules.include?(Computer::GeneratedFeatureMethods)
    assert_equal(Computer::GeneratedFeatureMethods, Computer.generated_feature_methods)
    assert(modules.index(Computer.generated_attribute_methods) > modules.index(Computer.generated_feature_methods),
           "generated_attribute_methods must be higher in inheritance hierarchy than generated_feature_methods")
    assert_not_equal Computer.generated_feature_methods, Post.generated_feature_methods
    assert(modules.index(Computer.generated_attribute_methods) < modules.index(ActiveRecord::Base.ancestors[1]))
  end

  def test_column_names_are_escaped
    conn      = ActiveRecord::Base.connection
    classname = conn.class.name[/[^:]*$/]
    badchar   = {
      'SQLite3Adapter'    => '"',
      'MysqlAdapter'      => '`',
      'Mysql2Adapter'     => '`',
      'PostgreSQLAdapter' => '"',
      'OracleAdapter'     => '"',
    }.fetch(classname) {
      raise "need a bad char for #{classname}"
    }

    quoted = conn.quote_column_name "foo#{badchar}bar"
    if current_adapter?(:OracleAdapter)
      # Oracle does not allow double quotes in table and column names at all
      # therefore quoting removes them
      assert_equal("#{badchar}foobar#{badchar}", quoted)
    else
      assert_equal("#{badchar}foo#{badchar * 2}bar#{badchar}", quoted)
    end
  end

  def test_columns_should_obey_set_primary_key
    pk = Subscriber.columns.find { |x| x.name == 'nick' }
    assert pk.primary, 'nick should be primary key'
  end

  def test_primary_key_with_no_id
    assert_nil Edge.primary_key
  end

  unless current_adapter?(:PostgreSQLAdapter, :OracleAdapter, :SQLServerAdapter)
    def test_limit_with_comma
      assert Topic.limit("1,2").to_a
    end
  end

  def test_limit_without_comma
    assert_equal 1, Topic.limit("1").to_a.length
    assert_equal 1, Topic.limit(1).to_a.length
  end

  def test_invalid_limit
    assert_raises(ArgumentError) do
      Topic.limit("asdfadf").to_a
    end
  end

  def test_limit_should_sanitize_sql_injection_for_limit_without_commas
    assert_raises(ArgumentError) do
      Topic.limit("1 select * from schema").to_a
    end
  end

  def test_limit_should_sanitize_sql_injection_for_limit_with_commas
    assert_raises(ArgumentError) do
      Topic.limit("1, 7 procedure help()").to_a
    end
  end

  unless current_adapter?(:MysqlAdapter, :Mysql2Adapter)
    def test_limit_should_allow_sql_literal
      assert_equal 1, Topic.limit(Arel.sql('2-1')).to_a.length
    end
  end

  def test_select_symbol
    topic_ids = Topic.select(:id).map(&:id).sort
    assert_equal Topic.pluck(:id).sort, topic_ids
  end

  def test_table_exists
    assert !NonExistentTable.table_exists?
    assert Topic.table_exists?
  end

  def test_preserving_date_objects
    if current_adapter?(:SybaseAdapter)
      # Sybase ctlib does not (yet?) support the date type; use datetime instead.
      assert_kind_of(
        Time, Topic.find(1).last_read,
        "The last_read attribute should be of the Time class"
      )
    else
      # Oracle enhanced adapter allows to define Date attributes in model class (see topic.rb)
      assert_kind_of(
        Date, Topic.find(1).last_read,
        "The last_read attribute should be of the Date class"
      )
    end
  end

  def test_previously_changed
    topic = Topic.first
    topic.title = '<3<3<3'
    assert_equal({}, topic.previous_changes)

    topic.save!
    expected = ["The First Topic", "<3<3<3"]
    assert_equal(expected, topic.previous_changes['title'])
  end

  def test_previously_changed_dup
    topic = Topic.first
    topic.title = '<3<3<3'
    topic.save!

    t2 = topic.dup

    assert_equal(topic.previous_changes, t2.previous_changes)

    topic.title = "lolwut"
    topic.save!

    assert_not_equal(topic.previous_changes, t2.previous_changes)
  end

  def test_preserving_time_objects
    assert_kind_of(
      Time, Topic.find(1).bonus_time,
      "The bonus_time attribute should be of the Time class"
    )

    assert_kind_of(
      Time, Topic.find(1).written_on,
      "The written_on attribute should be of the Time class"
    )

    # For adapters which support microsecond resolution.
    if current_adapter?(:PostgreSQLAdapter, :SQLite3Adapter)
      assert_equal 11, Topic.find(1).written_on.sec
      assert_equal 223300, Topic.find(1).written_on.usec
      assert_equal 9900, Topic.find(2).written_on.usec
      assert_equal 129346, Topic.find(3).written_on.usec
    end
  end

  def test_preserving_time_objects_with_local_time_conversion_to_default_timezone_utc
    with_env_tz 'America/New_York' do
      with_timezone_config default: :utc do
        time = Time.local(2000)
        topic = Topic.create('written_on' => time)
        saved_time = Topic.find(topic.id).reload.written_on
        assert_equal time, saved_time
        assert_equal [0, 0, 0, 1, 1, 2000, 6, 1, false, "EST"], time.to_a
        assert_equal [0, 0, 5, 1, 1, 2000, 6, 1, false, "UTC"], saved_time.to_a
      end
    end
  end

  def test_preserving_time_objects_with_time_with_zone_conversion_to_default_timezone_utc
    with_env_tz 'America/New_York' do
      with_timezone_config default: :utc do
        Time.use_zone 'Central Time (US & Canada)' do
          time = Time.zone.local(2000)
          topic = Topic.create('written_on' => time)
          saved_time = Topic.find(topic.id).reload.written_on
          assert_equal time, saved_time
          assert_equal [0, 0, 0, 1, 1, 2000, 6, 1, false, "CST"], time.to_a
          assert_equal [0, 0, 6, 1, 1, 2000, 6, 1, false, "UTC"], saved_time.to_a
        end
      end
    end
  end

  def test_preserving_time_objects_with_utc_time_conversion_to_default_timezone_local
    with_env_tz 'America/New_York' do
      with_timezone_config default: :local do
        time = Time.utc(2000)
        topic = Topic.create('written_on' => time)
        saved_time = Topic.find(topic.id).reload.written_on
        assert_equal time, saved_time
        assert_equal [0, 0, 0, 1, 1, 2000, 6, 1, false, "UTC"], time.to_a
        assert_equal [0, 0, 19, 31, 12, 1999, 5, 365, false, "EST"], saved_time.to_a
      end
    end
  end

  def test_preserving_time_objects_with_time_with_zone_conversion_to_default_timezone_local
    with_env_tz 'America/New_York' do
      with_timezone_config default: :local do
        Time.use_zone 'Central Time (US & Canada)' do
          time = Time.zone.local(2000)
          topic = Topic.create('written_on' => time)
          saved_time = Topic.find(topic.id).reload.written_on
          assert_equal time, saved_time
          assert_equal [0, 0, 0, 1, 1, 2000, 6, 1, false, "CST"], time.to_a
          assert_equal [0, 0, 1, 1, 1, 2000, 6, 1, false, "EST"], saved_time.to_a
        end
      end
    end
  end

  def test_custom_mutator
    topic = Topic.find(1)
    # This mutator is protected in the class definition
    topic.send(:approved=, true)
    assert topic.instance_variable_get("@custom_approved")
  end

  def test_initialize_with_attributes
    topic = Topic.new({
      "title" => "initialized from attributes", "written_on" => "2003-12-12 23:23"
    })

    assert_equal("initialized from attributes", topic.title)
  end

  def test_initialize_with_invalid_attribute
    Topic.new({ "title" => "test",
      "last_read(1i)" => "2005", "last_read(2i)" => "2", "last_read(3i)" => "31"})
  rescue ActiveRecord::MultiparameterAssignmentErrors => ex
    assert_equal(1, ex.errors.size)
    assert_equal("last_read", ex.errors[0].attribute)
  end

  def test_create_after_initialize_without_block
    cb = CustomBulb.create(:name => 'Dude')
    assert_equal('Dude', cb.name)
    assert_equal(true, cb.frickinawesome)
  end

  def test_create_after_initialize_with_block
    cb = CustomBulb.create {|c| c.name = 'Dude' }
    assert_equal('Dude', cb.name)
    assert_equal(true, cb.frickinawesome)
  end

  def test_create_after_initialize_with_array_param
    cbs = CustomBulb.create([{ name: 'Dude' }, { name: 'Bob' }])
    assert_equal 'Dude', cbs[0].name
    assert_equal 'Bob', cbs[1].name
    assert cbs[0].frickinawesome
    assert !cbs[1].frickinawesome
  end

  def test_load
    topics = Topic.all.merge!(:order => 'id').to_a
    assert_equal(4, topics.size)
    assert_equal(topics(:first).title, topics.first.title)
  end

  def test_load_with_condition
    topics = Topic.all.merge!(:where => "author_name = 'Mary'").to_a

    assert_equal(1, topics.size)
    assert_equal(topics(:second).title, topics.first.title)
  end

  GUESSED_CLASSES = [Category, Smarts, CreditCard, CreditCard::PinNumber, CreditCard::PinNumber::CvvCode, CreditCard::SubPinNumber, CreditCard::Brand, MasterCreditCard]

  def test_table_name_guesses
    assert_equal "topics", Topic.table_name

    assert_equal "categories", Category.table_name
    assert_equal "smarts", Smarts.table_name
    assert_equal "credit_cards", CreditCard.table_name
    assert_equal "credit_card_pin_numbers", CreditCard::PinNumber.table_name
    assert_equal "credit_card_pin_number_cvv_codes", CreditCard::PinNumber::CvvCode.table_name
    assert_equal "credit_card_pin_numbers", CreditCard::SubPinNumber.table_name
    assert_equal "categories", CreditCard::Brand.table_name
    assert_equal "master_credit_cards", MasterCreditCard.table_name
  ensure
    GUESSED_CLASSES.each(&:reset_table_name)
  end

  def test_singular_table_name_guesses
    ActiveRecord::Base.pluralize_table_names = false
    GUESSED_CLASSES.each(&:reset_table_name)

    assert_equal "category", Category.table_name
    assert_equal "smarts", Smarts.table_name
    assert_equal "credit_card", CreditCard.table_name
    assert_equal "credit_card_pin_number", CreditCard::PinNumber.table_name
    assert_equal "credit_card_pin_number_cvv_code", CreditCard::PinNumber::CvvCode.table_name
    assert_equal "credit_card_pin_number", CreditCard::SubPinNumber.table_name
    assert_equal "category", CreditCard::Brand.table_name
    assert_equal "master_credit_card", MasterCreditCard.table_name
  ensure
    ActiveRecord::Base.pluralize_table_names = true
    GUESSED_CLASSES.each(&:reset_table_name)
  end

  def test_table_name_guesses_with_prefixes_and_suffixes
    ActiveRecord::Base.table_name_prefix = "test_"
    Category.reset_table_name
    assert_equal "test_categories", Category.table_name
    ActiveRecord::Base.table_name_suffix = "_test"
    Category.reset_table_name
    assert_equal "test_categories_test", Category.table_name
    ActiveRecord::Base.table_name_prefix = ""
    Category.reset_table_name
    assert_equal "categories_test", Category.table_name
    ActiveRecord::Base.table_name_suffix = ""
    Category.reset_table_name
    assert_equal "categories", Category.table_name
  ensure
    ActiveRecord::Base.table_name_prefix = ""
    ActiveRecord::Base.table_name_suffix = ""
    GUESSED_CLASSES.each(&:reset_table_name)
  end

  def test_singular_table_name_guesses_with_prefixes_and_suffixes
    ActiveRecord::Base.pluralize_table_names = false

    ActiveRecord::Base.table_name_prefix = "test_"
    Category.reset_table_name
    assert_equal "test_category", Category.table_name
    ActiveRecord::Base.table_name_suffix = "_test"
    Category.reset_table_name
    assert_equal "test_category_test", Category.table_name
    ActiveRecord::Base.table_name_prefix = ""
    Category.reset_table_name
    assert_equal "category_test", Category.table_name
    ActiveRecord::Base.table_name_suffix = ""
    Category.reset_table_name
    assert_equal "category", Category.table_name
  ensure
    ActiveRecord::Base.pluralize_table_names = true
    ActiveRecord::Base.table_name_prefix = ""
    ActiveRecord::Base.table_name_suffix = ""
    GUESSED_CLASSES.each(&:reset_table_name)
  end

  def test_table_name_guesses_with_inherited_prefixes_and_suffixes
    GUESSED_CLASSES.each(&:reset_table_name)

    CreditCard.table_name_prefix = "test_"
    CreditCard.reset_table_name
    Category.reset_table_name
    assert_equal "test_credit_cards", CreditCard.table_name
    assert_equal "categories", Category.table_name
    CreditCard.table_name_suffix = "_test"
    CreditCard.reset_table_name
    Category.reset_table_name
    assert_equal "test_credit_cards_test", CreditCard.table_name
    assert_equal "categories", Category.table_name
    CreditCard.table_name_prefix = ""
    CreditCard.reset_table_name
    Category.reset_table_name
    assert_equal "credit_cards_test", CreditCard.table_name
    assert_equal "categories", Category.table_name
    CreditCard.table_name_suffix = ""
    CreditCard.reset_table_name
    Category.reset_table_name
    assert_equal "credit_cards", CreditCard.table_name
    assert_equal "categories", Category.table_name
  ensure
    CreditCard.table_name_prefix = ""
    CreditCard.table_name_suffix = ""
    GUESSED_CLASSES.each(&:reset_table_name)
  end

  def test_singular_table_name_guesses_for_individual_table
    Post.pluralize_table_names = false
    Post.reset_table_name
    assert_equal "post", Post.table_name
    assert_equal "categories", Category.table_name
  ensure
    Post.pluralize_table_names = true
    Post.reset_table_name
  end

  if current_adapter?(:MysqlAdapter, :Mysql2Adapter)
    def test_update_all_with_order_and_limit
      assert_equal 1, Topic.limit(1).order('id DESC').update_all(:content => 'bulk updated!')
    end
  end

  def test_null_fields
    assert_nil Topic.find(1).parent_id
    assert_nil Topic.create("title" => "Hey you").parent_id
  end

  def test_default_values
    topic = Topic.new
    assert topic.approved?
    assert_nil topic.written_on
    assert_nil topic.bonus_time
    assert_nil topic.last_read

    topic.save

    topic = Topic.find(topic.id)
    assert topic.approved?
    assert_nil topic.last_read

    # Oracle has some funky default handling, so it requires a bit of
    # extra testing. See ticket #2788.
    if current_adapter?(:OracleAdapter)
      test = TestOracleDefault.new
      assert_equal "X", test.test_char
      assert_equal "hello", test.test_string
      assert_equal 3, test.test_int
    end
  end

  # Oracle, and Sybase do not have a TIME datatype.
  unless current_adapter?(:OracleAdapter, :SybaseAdapter)
    def test_utc_as_time_zone
      with_timezone_config default: :utc do
        attributes = { "bonus_time" => "5:42:00AM" }
        topic = Topic.find(1)
        topic.attributes = attributes
        assert_equal Time.utc(2000, 1, 1, 5, 42, 0), topic.bonus_time
      end
    end

    def test_utc_as_time_zone_and_new
      with_timezone_config default: :utc do
        attributes = { "bonus_time(1i)"=>"2000",
          "bonus_time(2i)"=>"1",
          "bonus_time(3i)"=>"1",
          "bonus_time(4i)"=>"10",
          "bonus_time(5i)"=>"35",
          "bonus_time(6i)"=>"50" }
        topic = Topic.new(attributes)
        assert_equal Time.utc(2000, 1, 1, 10, 35, 50), topic.bonus_time
      end
    end
  end

  def test_default_values_on_empty_strings
    topic = Topic.new
    topic.approved  = nil
    topic.last_read = nil

    topic.save

    topic = Topic.find(topic.id)
    assert_nil topic.last_read

    # Sybase adapter does not allow nulls in boolean columns
    if current_adapter?(:SybaseAdapter)
      assert topic.approved == false
    else
      assert_nil topic.approved
    end
  end

  def test_equality
    assert_equal Topic.find(1), Topic.find(2).topic
  end

  def test_find_by_slug
    assert_equal Topic.find('1-meowmeow'), Topic.find(1)
  end

  def test_equality_of_new_records
    assert_not_equal Topic.new, Topic.new
  end

  def test_equality_of_destroyed_records
    topic_1 = Topic.new(:title => 'test_1')
    topic_1.save
    topic_2 = Topic.find(topic_1.id)
    topic_1.destroy
    assert_equal topic_1, topic_2
    assert_equal topic_2, topic_1
  end

  def test_hashing
    assert_equal [ Topic.find(1) ], [ Topic.find(2).topic ] & [ Topic.find(1) ]
  end

  def test_create_without_prepared_statement
    topic = Topic.connection.unprepared_statement do
      Topic.create(:title => 'foo')
    end

    assert_equal topic, Topic.find(topic.id)
  end

  def test_destroy_without_prepared_statement
    topic = Topic.create(title: 'foo')
    Topic.connection.unprepared_statement do
      Topic.find(topic.id).destroy
    end

    assert_equal nil, Topic.find_by_id(topic.id)
  end

  def test_blank_ids
    one = Subscriber.new(:id => '')
    two = Subscriber.new(:id => '')
    assert_equal one, two
  end

  def test_comparison_with_different_objects
    topic = Topic.create
    category = Category.create(:name => "comparison")
    assert_nil topic <=> category
  end

  def test_comparison_with_different_objects_in_array
    topic = Topic.create
    assert_raises(ArgumentError) do
      [1, topic].sort
    end
  end

  def test_readonly_attributes
    assert_equal Set.new([ 'title' , 'comments_count' ]), ReadonlyTitlePost.readonly_attributes

    post = ReadonlyTitlePost.create(:title => "cannot change this", :body => "changeable")
    post.reload
    assert_equal "cannot change this", post.title

    post.update(title: "try to change", body: "changed")
    post.reload
    assert_equal "cannot change this", post.title
    assert_equal "changed", post.body
  end

  def test_unicode_column_name
    Weird.reset_column_information
    weird = Weird.create(:なまえ => 'たこ焼き仮面')
    assert_equal 'たこ焼き仮面', weird.なまえ
  end

  def test_respect_internal_encoding
    if current_adapter?(:PostgreSQLAdapter)
      skip 'pg does not respect internal encoding and always returns utf8'
    end
    old_default_internal = Encoding.default_internal
    silence_warnings { Encoding.default_internal = "EUC-JP" }

    Weird.reset_column_information

    assert_equal ["EUC-JP"], Weird.columns.map {|c| c.name.encoding.name }.uniq
  ensure
    silence_warnings { Encoding.default_internal = old_default_internal }
  end

  def test_non_valid_identifier_column_name
    weird = Weird.create('a$b' => 'value')
    weird.reload
    assert_equal 'value', weird.send('a$b')
    assert_equal 'value', weird.read_attribute('a$b')

    weird.update_columns('a$b' => 'value2')
    weird.reload
    assert_equal 'value2', weird.send('a$b')
    assert_equal 'value2', weird.read_attribute('a$b')
  end

  def test_group_weirds_by_from
    Weird.create('a$b' => 'value', :from => 'aaron')
    count = Weird.group(Weird.arel_table[:from]).count
    assert_equal 1, count['aaron']
  end

  def test_attributes_on_dummy_time
    # Oracle, and Sybase do not have a TIME datatype.
    return true if current_adapter?(:OracleAdapter, :SybaseAdapter)

    with_timezone_config default: :local do
      attributes = {
        "bonus_time" => "5:42:00AM"
      }
      topic = Topic.find(1)
      topic.attributes = attributes
      assert_equal Time.local(2000, 1, 1, 5, 42, 0), topic.bonus_time
    end
  end

  def test_attributes_on_dummy_time_with_invalid_time
    # Oracle, and Sybase do not have a TIME datatype.
    return true if current_adapter?(:OracleAdapter, :SybaseAdapter)

    attributes = {
      "bonus_time" => "not a time"
    }
    topic = Topic.find(1)
    topic.attributes = attributes
    assert_nil topic.bonus_time
  end

  def test_boolean
    b_nil = Boolean.create({ "value" => nil })
    nil_id = b_nil.id
    b_false = Boolean.create({ "value" => false })
    false_id = b_false.id
    b_true = Boolean.create({ "value" => true })
    true_id = b_true.id

    b_nil = Boolean.find(nil_id)
    assert_nil b_nil.value
    b_false = Boolean.find(false_id)
    assert !b_false.value?
    b_true = Boolean.find(true_id)
    assert b_true.value?
  end

  def test_boolean_without_questionmark
    b_true = Boolean.create({ "value" => true })
    true_id = b_true.id

    subclass   = Class.new(Boolean).find true_id
    superclass = Boolean.find true_id

    assert_equal superclass.read_attribute(:has_fun), subclass.read_attribute(:has_fun)
  end

  def test_boolean_cast_from_string
    b_blank = Boolean.create({ "value" => "" })
    blank_id = b_blank.id
    b_false = Boolean.create({ "value" => "0" })
    false_id = b_false.id
    b_true = Boolean.create({ "value" => "1" })
    true_id = b_true.id

    b_blank = Boolean.find(blank_id)
    assert_nil b_blank.value
    b_false = Boolean.find(false_id)
    assert !b_false.value?
    b_true = Boolean.find(true_id)
    assert b_true.value?
  end

  def test_new_record_returns_boolean
    assert_equal false, Topic.new.persisted?
    assert_equal true, Topic.find(1).persisted?
  end

  def test_dup
    topic = Topic.find(1)
    duped_topic = nil
    assert_nothing_raised { duped_topic = topic.dup }
    assert_equal topic.title, duped_topic.title
    assert !duped_topic.persisted?

    # test if the attributes have been duped
    topic.title = "a"
    duped_topic.title = "b"
    assert_equal "a", topic.title
    assert_equal "b", duped_topic.title

    # test if the attribute values have been duped
    duped_topic = topic.dup
    duped_topic.title.replace "c"
    assert_equal "a", topic.title

    # test if attributes set as part of after_initialize are duped correctly
    assert_equal topic.author_email_address, duped_topic.author_email_address

    # test if saved clone object differs from original
    duped_topic.save
    assert duped_topic.persisted?
    assert_not_equal duped_topic.id, topic.id

    duped_topic.reload
    assert_equal("c", duped_topic.title)
  end

  def test_dup_with_aggregate_of_same_name_as_attribute
    dev = DeveloperWithAggregate.find(1)
    assert_kind_of DeveloperSalary, dev.salary

    dup = nil
    assert_nothing_raised { dup = dev.dup }
    assert_kind_of DeveloperSalary, dup.salary
    assert_equal dev.salary.amount, dup.salary.amount
    assert !dup.persisted?

    # test if the attributes have been dupd
    original_amount = dup.salary.amount
    dev.salary.amount = 1
    assert_equal original_amount, dup.salary.amount

    assert dup.save
    assert dup.persisted?
    assert_not_equal dup.id, dev.id
  end

  def test_dup_does_not_copy_associations
    author = authors(:david)
    assert_not_equal [], author.posts
    author.send(:clear_association_cache)

    author_dup = author.dup
    assert_equal [], author_dup.posts
  end

  def test_clone_preserves_subtype
    clone = nil
    assert_nothing_raised { clone = Company.find(3).clone }
    assert_kind_of Client, clone
  end

  def test_clone_of_new_object_with_defaults
    developer = Developer.new
    assert !developer.name_changed?
    assert !developer.salary_changed?

    cloned_developer = developer.clone
    assert !cloned_developer.name_changed?
    assert !cloned_developer.salary_changed?
  end

  def test_clone_of_new_object_marks_attributes_as_dirty
    developer = Developer.new :name => 'Bjorn', :salary => 100000
    assert developer.name_changed?
    assert developer.salary_changed?

    cloned_developer = developer.clone
    assert cloned_developer.name_changed?
    assert cloned_developer.salary_changed?
  end

  def test_clone_of_new_object_marks_as_dirty_only_changed_attributes
    developer = Developer.new :name => 'Bjorn'
    assert developer.name_changed?            # obviously
    assert !developer.salary_changed?         # attribute has non-nil default value, so treated as not changed

    cloned_developer = developer.clone
    assert cloned_developer.name_changed?
    assert !cloned_developer.salary_changed?  # ... and cloned instance should behave same
  end

  def test_dup_of_saved_object_marks_attributes_as_dirty
    developer = Developer.create! :name => 'Bjorn', :salary => 100000
    assert !developer.name_changed?
    assert !developer.salary_changed?

    cloned_developer = developer.dup
    assert cloned_developer.name_changed?     # both attributes differ from defaults
    assert cloned_developer.salary_changed?
  end

  def test_dup_of_saved_object_marks_as_dirty_only_changed_attributes
    developer = Developer.create! :name => 'Bjorn'
    assert !developer.name_changed?           # both attributes of saved object should be treated as not changed
    assert !developer.salary_changed?

    cloned_developer = developer.dup
    assert cloned_developer.name_changed?     # ... but on cloned object should be
    assert !cloned_developer.salary_changed?  # ... BUT salary has non-nil default which should be treated as not changed on cloned instance
  end

  def test_bignum
    company = Company.find(1)
    company.rating = 2147483647
    company.save
    company = Company.find(1)
    assert_equal 2147483647, company.rating
  end

  # TODO: extend defaults tests to other databases!
  if current_adapter?(:PostgreSQLAdapter)
    def test_default
      with_timezone_config default: :local do
        default = Default.new

        # fixed dates / times
        assert_equal Date.new(2004, 1, 1), default.fixed_date
        assert_equal Time.local(2004, 1,1,0,0,0,0), default.fixed_time

        # char types
        assert_equal 'Y', default.char1
        assert_equal 'a varchar field', default.char2
        assert_equal 'a text field', default.char3
      end
    end

    class Geometric < ActiveRecord::Base; end
    def test_geometric_content

      # accepted format notes:
      # ()'s aren't required
      # values can be a mix of float or integer

      g = Geometric.new(
        :a_point        => '(5.0, 6.1)',
        #:a_line         => '((2.0, 3), (5.5, 7.0))' # line type is currently unsupported in postgresql
        :a_line_segment => '(2.0, 3), (5.5, 7.0)',
        :a_box          => '2.0, 3, 5.5, 7.0',
        :a_path         => '[(2.0, 3), (5.5, 7.0), (8.5, 11.0)]',  # [ ] is an open path
        :a_polygon      => '((2.0, 3), (5.5, 7.0), (8.5, 11.0))',
        :a_circle       => '<(5.3, 10.4), 2>'
      )

      assert g.save

      # Reload and check that we have all the geometric attributes.
      h = Geometric.find(g.id)

      assert_equal [5.0, 6.1], h.a_point
      assert_equal '[(2,3),(5.5,7)]', h.a_line_segment
      assert_equal '(5.5,7),(2,3)', h.a_box   # reordered to store upper right corner then bottom left corner
      assert_equal '[(2,3),(5.5,7),(8.5,11)]', h.a_path
      assert_equal '((2,3),(5.5,7),(8.5,11))', h.a_polygon
      assert_equal '<(5.3,10.4),2>', h.a_circle

      # use a geometric function to test for an open path
      objs = Geometric.find_by_sql ["select isopen(a_path) from geometrics where id = ?", g.id]

      assert_equal true, objs[0].isopen

      # test alternate formats when defining the geometric types

      g = Geometric.new(
        :a_point        => '5.0, 6.1',
        #:a_line         => '((2.0, 3), (5.5, 7.0))' # line type is currently unsupported in postgresql
        :a_line_segment => '((2.0, 3), (5.5, 7.0))',
        :a_box          => '(2.0, 3), (5.5, 7.0)',
        :a_path         => '((2.0, 3), (5.5, 7.0), (8.5, 11.0))',  # ( ) is a closed path
        :a_polygon      => '2.0, 3, 5.5, 7.0, 8.5, 11.0',
        :a_circle       => '((5.3, 10.4), 2)'
      )

      assert g.save

      # Reload and check that we have all the geometric attributes.
      h = Geometric.find(g.id)

      assert_equal [5.0, 6.1], h.a_point
      assert_equal '[(2,3),(5.5,7)]', h.a_line_segment
      assert_equal '(5.5,7),(2,3)', h.a_box   # reordered to store upper right corner then bottom left corner
      assert_equal '((2,3),(5.5,7),(8.5,11))', h.a_path
      assert_equal '((2,3),(5.5,7),(8.5,11))', h.a_polygon
      assert_equal '<(5.3,10.4),2>', h.a_circle

      # use a geometric function to test for an closed path
      objs = Geometric.find_by_sql ["select isclosed(a_path) from geometrics where id = ?", g.id]

      assert_equal true, objs[0].isclosed

      # test native ruby formats when defining the geometric types
      g = Geometric.new(
        :a_point        => [5.0, 6.1],
        #:a_line         => '((2.0, 3), (5.5, 7.0))' # line type is currently unsupported in postgresql
        :a_line_segment => '((2.0, 3), (5.5, 7.0))',
        :a_box          => '(2.0, 3), (5.5, 7.0)',
        :a_path         => '((2.0, 3), (5.5, 7.0), (8.5, 11.0))',  # ( ) is a closed path
        :a_polygon      => '2.0, 3, 5.5, 7.0, 8.5, 11.0',
        :a_circle       => '((5.3, 10.4), 2)'
      )

      assert g.save

      # Reload and check that we have all the geometric attributes.
      h = Geometric.find(g.id)

      assert_equal [5.0, 6.1], h.a_point
      assert_equal '[(2,3),(5.5,7)]', h.a_line_segment
      assert_equal '(5.5,7),(2,3)', h.a_box   # reordered to store upper right corner then bottom left corner
      assert_equal '((2,3),(5.5,7),(8.5,11))', h.a_path
      assert_equal '((2,3),(5.5,7),(8.5,11))', h.a_polygon
      assert_equal '<(5.3,10.4),2>', h.a_circle
    end
  end

  class NumericData < ActiveRecord::Base
    self.table_name = 'numeric_data'
  end

  def test_big_decimal_conditions
    m = NumericData.new(
      :bank_balance => 1586.43,
      :big_bank_balance => BigDecimal("1000234000567.95"),
      :world_population => 6000000000,
      :my_house_population => 3
    )
    assert m.save
    assert_equal 0, NumericData.where("bank_balance > ?", 2000.0).count
  end

  def test_numeric_fields
    m = NumericData.new(
      :bank_balance => 1586.43,
      :big_bank_balance => BigDecimal("1000234000567.95"),
      :world_population => 6000000000,
      :my_house_population => 3
    )
    assert m.save

    m1 = NumericData.find(m.id)
    assert_not_nil m1

    # As with migration_test.rb, we should make world_population >= 2**62
    # to cover 64-bit platforms and test it is a Bignum, but the main thing
    # is that it's an Integer.
    assert_kind_of Integer, m1.world_population
    assert_equal 6000000000, m1.world_population

    assert_kind_of Fixnum, m1.my_house_population
    assert_equal 3, m1.my_house_population

    assert_kind_of BigDecimal, m1.bank_balance
    assert_equal BigDecimal("1586.43"), m1.bank_balance

    assert_kind_of BigDecimal, m1.big_bank_balance
    assert_equal BigDecimal("1000234000567.95"), m1.big_bank_balance
  end

  def test_auto_id
    auto = AutoId.new
    auto.save
    assert(auto.id > 0)
  end

  def test_sql_injection_via_find
    assert_raise(ActiveRecord::RecordNotFound, ActiveRecord::StatementInvalid) do
      Topic.find("123456 OR id > 0")
    end
  end

  def test_column_name_properly_quoted
    col_record = ColumnName.new
    col_record.references = 40
    assert col_record.save
    col_record.references = 41
    assert col_record.save
    assert_not_nil c2 = ColumnName.find(col_record.id)
    assert_equal(41, c2.references)
  end

  def test_quoting_arrays
    replies = Reply.all.merge!(:where => [ "id IN (?)", topics(:first).replies.collect(&:id) ]).to_a
    assert_equal topics(:first).replies.size, replies.size

    replies = Reply.all.merge!(:where => [ "id IN (?)", [] ]).to_a
    assert_equal 0, replies.size
  end

  def test_quote
    author_name = "\\ \001 ' \n \\n \""
    topic = Topic.create('author_name' => author_name)
    assert_equal author_name, Topic.find(topic.id).author_name
  end

  def test_toggle_attribute
    assert !topics(:first).approved?
    topics(:first).toggle!(:approved)
    assert topics(:first).approved?
    topic = topics(:first)
    topic.toggle(:approved)
    assert !topic.approved?
    topic.reload
    assert topic.approved?
  end

  def test_reload
    t1 = Topic.find(1)
    t2 = Topic.find(1)
    t1.title = "something else"
    t1.save
    t2.reload
    assert_equal t1.title, t2.title
  end

  def test_reload_with_exclusive_scope
    dev = DeveloperCalledDavid.first
    dev.update!(name: "NotDavid" )
    assert_equal dev, dev.reload
  end

  def test_switching_between_table_name
    assert_difference("GoodJoke.count") do
      Joke.table_name = "cold_jokes"
      Joke.create

      Joke.table_name = "funny_jokes"
      Joke.create
    end
  end

  def test_clear_cash_when_setting_table_name
    Joke.table_name = "cold_jokes"
    before_columns = Joke.columns
    before_seq     = Joke.sequence_name

    Joke.table_name = "funny_jokes"
    after_columns = Joke.columns
    after_seq     = Joke.sequence_name

    assert_not_equal before_columns, after_columns
    assert_not_equal before_seq, after_seq unless before_seq.nil? && after_seq.nil?
  end

  def test_dont_clear_sequence_name_when_setting_explicitly
    Joke.sequence_name = "black_jokes_seq"
    Joke.table_name    = "cold_jokes"
    before_seq         = Joke.sequence_name

    Joke.table_name    = "funny_jokes"
    after_seq          = Joke.sequence_name

    assert_equal before_seq, after_seq unless before_seq.nil? && after_seq.nil?
  ensure
    Joke.reset_sequence_name
  end

  def test_dont_clear_inheritance_column_when_setting_explicitly
    Joke.inheritance_column = "my_type"
    before_inherit = Joke.inheritance_column

    Joke.reset_column_information
    after_inherit = Joke.inheritance_column

    assert_equal before_inherit, after_inherit unless before_inherit.blank? && after_inherit.blank?
  end

  def test_set_table_name_symbol_converted_to_string
    Joke.table_name = :cold_jokes
    assert_equal 'cold_jokes', Joke.table_name
  end

  def test_quoted_table_name_after_set_table_name
    klass = Class.new(ActiveRecord::Base)

    klass.table_name = "foo"
    assert_equal "foo", klass.table_name
    assert_equal klass.connection.quote_table_name("foo"), klass.quoted_table_name

    klass.table_name = "bar"
    assert_equal "bar", klass.table_name
    assert_equal klass.connection.quote_table_name("bar"), klass.quoted_table_name
  end

  def test_set_table_name_with_inheritance
    k = Class.new( ActiveRecord::Base )
    def k.name; "Foo"; end
    def k.table_name; super + "ks"; end
    assert_equal "foosks", k.table_name
  end

  def test_sequence_name_with_abstract_class
    ak = Class.new(ActiveRecord::Base)
    ak.abstract_class = true
    k = Class.new(ak)
    k.table_name = "projects"
    orig_name = k.sequence_name
    return skip "sequences not supported by db" unless orig_name
    assert_equal k.reset_sequence_name, orig_name
  end

  def test_count_with_join
    res = Post.count_by_sql "SELECT COUNT(*) FROM posts LEFT JOIN comments ON posts.id=comments.post_id WHERE posts.#{QUOTED_TYPE} = 'Post'"

    res2 = Post.where("posts.#{QUOTED_TYPE} = 'Post'").joins("LEFT JOIN comments ON posts.id=comments.post_id").count
    assert_equal res, res2

    res3 = nil
    assert_nothing_raised do
      res3 = Post.where("posts.#{QUOTED_TYPE} = 'Post'").joins("LEFT JOIN comments ON posts.id=comments.post_id").count
    end
    assert_equal res, res3

    res4 = Post.count_by_sql "SELECT COUNT(p.id) FROM posts p, comments co WHERE p.#{QUOTED_TYPE} = 'Post' AND p.id=co.post_id"
    res5 = nil
    assert_nothing_raised do
      res5 = Post.where("p.#{QUOTED_TYPE} = 'Post' AND p.id=co.post_id").joins("p, comments co").select("p.id").count
    end

    assert_equal res4, res5

    res6 = Post.count_by_sql "SELECT COUNT(DISTINCT p.id) FROM posts p, comments co WHERE p.#{QUOTED_TYPE} = 'Post' AND p.id=co.post_id"
    res7 = nil
    assert_nothing_raised do
      res7 = Post.where("p.#{QUOTED_TYPE} = 'Post' AND p.id=co.post_id").joins("p, comments co").select("p.id").distinct.count
    end
    assert_equal res6, res7
  end

  def test_no_limit_offset
    assert_nothing_raised do
      Developer.all.merge!(:offset => 2).to_a
    end
  end

  def test_find_last
    last  = Developer.last
    assert_equal last, Developer.all.merge!(:order => 'id desc').first
  end

  def test_last
    assert_equal Developer.all.merge!(:order => 'id desc').first, Developer.last
  end

  def test_all
    developers = Developer.all
    assert_kind_of ActiveRecord::Relation, developers
    assert_equal Developer.all, developers
  end

  def test_all_with_conditions
    assert_equal Developer.all.merge!(:order => 'id desc').to_a, Developer.order('id desc').to_a
  end

  def test_find_ordered_last
    last  = Developer.all.merge!(:order => 'developers.salary ASC').last
    assert_equal last, Developer.all.merge!(:order => 'developers.salary ASC').to_a.last
  end

  def test_find_reverse_ordered_last
    last  = Developer.all.merge!(:order => 'developers.salary DESC').last
    assert_equal last, Developer.all.merge!(:order => 'developers.salary DESC').to_a.last
  end

  def test_find_multiple_ordered_last
    last  = Developer.all.merge!(:order => 'developers.name, developers.salary DESC').last
    assert_equal last, Developer.all.merge!(:order => 'developers.name, developers.salary DESC').to_a.last
  end

  def test_find_keeps_multiple_order_values
    combined = Developer.all.merge!(:order => 'developers.name, developers.salary').to_a
    assert_equal combined, Developer.all.merge!(:order => ['developers.name', 'developers.salary']).to_a
  end

  def test_find_keeps_multiple_group_values
    combined = Developer.all.merge!(:group => 'developers.name, developers.salary, developers.id, developers.created_at, developers.updated_at, developers.created_on, developers.updated_on').to_a
    assert_equal combined, Developer.all.merge!(:group => ['developers.name', 'developers.salary', 'developers.id', 'developers.created_at', 'developers.updated_at', 'developers.created_on', 'developers.updated_on']).to_a
  end

  def test_find_symbol_ordered_last
    last  = Developer.all.merge!(:order => :salary).last
    assert_equal last, Developer.all.merge!(:order => :salary).to_a.last
  end

  def test_abstract_class
    assert !ActiveRecord::Base.abstract_class?
    assert LoosePerson.abstract_class?
    assert !LooseDescendant.abstract_class?
  end

  def test_abstract_class_table_name
    assert_nil AbstractCompany.table_name
  end

  def test_descends_from_active_record
    assert !ActiveRecord::Base.descends_from_active_record?

    # Abstract subclass of AR::Base.
    assert LoosePerson.descends_from_active_record?

    # Concrete subclass of an abstract class.
    assert LooseDescendant.descends_from_active_record?

    # Concrete subclass of AR::Base.
    assert TightPerson.descends_from_active_record?

    # Concrete subclass of a concrete class but has no type column.
    assert TightDescendant.descends_from_active_record?

    # Concrete subclass of AR::Base.
    assert Post.descends_from_active_record?

    # Abstract subclass of a concrete class which has a type column.
    # This is pathological, as you'll never have Sub < Abstract < Concrete.
    assert !StiPost.descends_from_active_record?

    # Concrete subclasses an abstract class which has a type column.
    assert !SubStiPost.descends_from_active_record?
  end

  def test_find_on_abstract_base_class_doesnt_use_type_condition
    old_class = LooseDescendant
    Object.send :remove_const, :LooseDescendant

    descendant = old_class.create! :first_name => 'bob'
    assert_not_nil LoosePerson.find(descendant.id), "Should have found instance of LooseDescendant when finding abstract LoosePerson: #{descendant.inspect}"
  ensure
    unless Object.const_defined?(:LooseDescendant)
      Object.const_set :LooseDescendant, old_class
    end
  end

  def test_assert_queries
    query = lambda { ActiveRecord::Base.connection.execute 'select count(*) from developers' }
    assert_queries(2) { 2.times { query.call } }
    assert_queries 1, &query
    assert_no_queries { assert true }
  end

  def test_benchmark_with_log_level
    original_logger = ActiveRecord::Base.logger
    log = StringIO.new
    ActiveRecord::Base.logger = ActiveSupport::Logger.new(log)
    ActiveRecord::Base.logger.level = Logger::WARN
    ActiveRecord::Base.benchmark("Debug Topic Count", :level => :debug) { Topic.count }
    ActiveRecord::Base.benchmark("Warn Topic Count",  :level => :warn)  { Topic.count }
    ActiveRecord::Base.benchmark("Error Topic Count", :level => :error) { Topic.count }
    assert_no_match(/Debug Topic Count/, log.string)
    assert_match(/Warn Topic Count/, log.string)
    assert_match(/Error Topic Count/, log.string)
  ensure
    ActiveRecord::Base.logger = original_logger
  end

  def test_benchmark_with_use_silence
    original_logger = ActiveRecord::Base.logger
    log = StringIO.new
    ActiveRecord::Base.logger = ActiveSupport::Logger.new(log)
    ActiveRecord::Base.benchmark("Logging", :level => :debug, :silence => false)  { ActiveRecord::Base.logger.debug "Quiet" }
    assert_match(/Quiet/, log.string)
  ensure
    ActiveRecord::Base.logger = original_logger
  end

  def test_compute_type_success
    assert_equal Author, ActiveRecord::Base.send(:compute_type, 'Author')
  end

  def test_compute_type_nonexistent_constant
    assert_raises NameError do
      ActiveRecord::Base.send :compute_type, 'NonexistentModel'
    end
  end

  def test_compute_type_no_method_error
    ActiveSupport::Dependencies.stubs(:constantize).raises(NoMethodError)
    assert_raises NoMethodError do
      ActiveRecord::Base.send :compute_type, 'InvalidModel'
    end
  end

  def test_compute_type_argument_error
    ActiveSupport::Dependencies.stubs(:constantize).raises(ArgumentError)
    assert_raises ArgumentError do
      ActiveRecord::Base.send :compute_type, 'InvalidModel'
    end
  end

  def test_clear_cache!
    # preheat cache
    c1 = Post.connection.schema_cache.columns('posts')
    ActiveRecord::Base.clear_cache!
    c2 = Post.connection.schema_cache.columns('posts')
    assert_not_equal c1, c2
  end

  def test_current_scope_is_reset
    Object.const_set :UnloadablePost, Class.new(ActiveRecord::Base)
    UnloadablePost.send(:current_scope=, UnloadablePost.all)

    UnloadablePost.unloadable
    assert_not_nil ActiveRecord::Scoping::ScopeRegistry.value_for(:current_scope, "UnloadablePost")
    ActiveSupport::Dependencies.remove_unloadable_constants!
    assert_nil ActiveRecord::Scoping::ScopeRegistry.value_for(:current_scope, "UnloadablePost")
  ensure
    Object.class_eval{ remove_const :UnloadablePost } if defined?(UnloadablePost)
  end

  def test_marshal_round_trip
    expected = posts(:welcome)
    marshalled = Marshal.dump(expected)
    actual   = Marshal.load(marshalled)

    assert_equal expected.attributes, actual.attributes
  end

  def test_marshal_new_record_round_trip
    marshalled = Marshal.dump(Post.new)
    post       = Marshal.load(marshalled)

    assert post.new_record?, "should be a new record"
  end

  def test_marshalling_with_associations
    post = Post.new
    post.comments.build

    marshalled = Marshal.dump(post)
    post       = Marshal.load(marshalled)

    assert_equal 1, post.comments.length
  end

  def test_marshal_between_processes
    skip "can't marshal between processes when using an in-memory db" if in_memory_db?
    skip "fork isn't supported" unless Process.respond_to?(:fork)

    # Define a new model to ensure there are no caches
    if self.class.const_defined?("Post", false)
      flunk "there should be no post constant"
    end

    self.class.const_set("Post", Class.new(ActiveRecord::Base) {
      has_many :comments
    })

    rd, wr = IO.pipe

    ActiveRecord::Base.connection_handler.clear_all_connections!

    fork do
      rd.close
      post = Post.new
      post.comments.build
      wr.write Marshal.dump(post)
      wr.close
    end

    wr.close
    assert Marshal.load rd.read
    rd.close
  end

  def test_marshalling_new_record_round_trip_with_associations
    post = Post.new
    post.comments.build

    post = Marshal.load(Marshal.dump(post))

    assert post.new_record?, "should be a new record"
  end

  def test_attribute_names
    assert_equal ["id", "type", "firm_id", "firm_name", "name", "client_of", "rating", "account_id", "description"],
                 Company.attribute_names
  end

  def test_attribute_names_on_table_not_exists
    assert_equal [], NonExistentTable.attribute_names
  end

  def test_attribute_names_on_abstract_class
    assert_equal [], AbstractCompany.attribute_names
  end

  def test_touch_should_raise_error_on_a_new_object
    company = Company.new(:rating => 1, :name => "37signals", :firm_name => "37signals")
    assert_raises(ActiveRecord::ActiveRecordError) do
      company.touch :updated_at
    end
  end

  def test_uniq_delegates_to_scoped
    scope = stub
    Bird.stubs(:all).returns(mock(:uniq => scope))
    assert_equal scope, Bird.uniq
  end

  def test_distinct_delegates_to_scoped
    scope = stub
    Bird.stubs(:all).returns(mock(:distinct => scope))
    assert_equal scope, Bird.distinct
  end

  def test_table_name_with_2_abstract_subclasses
    assert_equal "photos", Photo.table_name
  end

  def test_column_types_typecast
    topic = Topic.first
    assert_not_equal 't.lo', topic.author_name

    attrs = topic.attributes.dup
    attrs.delete 'id'

    typecast = Class.new {
      def type_cast value
        "t.lo"
      end
    }

    types = { 'author_name' => typecast.new }
    topic = Topic.allocate.init_with 'attributes' => attrs,
                                     'column_types' => types

    assert_equal 't.lo', topic.author_name
  end

  def test_typecasting_aliases
    assert_equal 10, Topic.select('10 as tenderlove').first.tenderlove
  end

  def test_slice
    company = Company.new(:rating => 1, :name => "37signals", :firm_name => "37signals")
    hash = company.slice(:name, :rating, "arbitrary_method")
    assert_equal hash[:name], company.name
    assert_equal hash['name'], company.name
    assert_equal hash[:rating], company.rating
    assert_equal hash['arbitrary_method'], company.arbitrary_method
    assert_equal hash[:arbitrary_method], company.arbitrary_method
    assert_nil hash[:firm_name]
    assert_nil hash['firm_name']
  end

  def test_default_values_are_deeply_dupped
    company = Company.new
    company.description << "foo"
    assert_equal "", Company.new.description
  end

  ["find_by", "find_by!"].each do |meth|
    test "#{meth} delegates to scoped" do
      record = stub

      scope = mock
      scope.expects(meth).with(:foo, :bar).returns(record)

      klass = Class.new(ActiveRecord::Base)
      klass.stubs(:all => scope)

      assert_equal record, klass.public_send(meth, :foo, :bar)
    end
  end

  test "scoped can take a values hash" do
    klass = Class.new(ActiveRecord::Base)
    assert_equal ['foo'], klass.all.merge!(select: 'foo').select_values
  end

  test "connection_handler can be overridden" do
    klass = Class.new(ActiveRecord::Base)
    orig_handler = klass.connection_handler
    new_handler = ActiveRecord::ConnectionAdapters::ConnectionHandler.new
    thread_connection_handler = nil

    t = Thread.new do
      klass.connection_handler = new_handler
      thread_connection_handler = klass.connection_handler
    end
    t.join

    assert_equal klass.connection_handler, orig_handler
    assert_equal thread_connection_handler, new_handler
  end

  test "new threads get default the default connection handler" do
    klass = Class.new(ActiveRecord::Base)
    orig_handler = klass.connection_handler
    handler = nil

    t = Thread.new do
      handler = klass.connection_handler
    end
    t.join

    assert_equal handler, orig_handler
    assert_equal klass.connection_handler, orig_handler
    assert_equal klass.default_connection_handler, orig_handler
  end

  test "changing a connection handler in a main thread does not poison the other threads" do
    klass = Class.new(ActiveRecord::Base)
    orig_handler = klass.connection_handler
    new_handler = ActiveRecord::ConnectionAdapters::ConnectionHandler.new
    after_handler = nil
    latch1 = ActiveSupport::Concurrency::Latch.new
    latch2 = ActiveSupport::Concurrency::Latch.new

    t = Thread.new do
      klass.connection_handler = new_handler
      latch1.release
      latch2.await
      after_handler = klass.connection_handler
    end

    latch1.await

    klass.connection_handler = orig_handler
    latch2.release
    t.join

    assert_equal after_handler, new_handler
    assert_equal orig_handler, klass.connection_handler
  end
end