aboutsummaryrefslogtreecommitdiffstats
path: root/activerecord/test/cases/persistence_test.rb
blob: 56092aaa0cd32caf937cb409c122ed3c21ab1d1f (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
require "cases/helper"
require 'models/aircraft'
require 'models/post'
require 'models/comment'
require 'models/author'
require 'models/topic'
require 'models/reply'
require 'models/category'
require 'models/company'
require 'models/developer'
require 'models/computer'
require 'models/project'
require 'models/minimalistic'
require 'models/warehouse_thing'
require 'models/parrot'
require 'models/minivan'
require 'models/owner'
require 'models/person'
require 'models/pet'
require 'models/ship'
require 'models/toy'
require 'models/admin'
require 'models/admin/user'
require 'rexml/document'

class PersistenceTest < ActiveRecord::TestCase
  fixtures :topics, :companies, :developers, :projects, :computers, :accounts, :minimalistics, 'warehouse-things', :authors, :author_addresses, :categorizations, :categories, :posts, :minivans, :pets, :toys

  # Oracle UPDATE does not support ORDER BY
  unless current_adapter?(:OracleAdapter)
    def test_update_all_ignores_order_without_limit_from_association
      author = authors(:david)
      assert_nothing_raised do
        assert_equal author.posts_with_comments_and_categories.length, author.posts_with_comments_and_categories.update_all([ "body = ?", "bulk update!" ])
      end
    end

    def test_update_all_doesnt_ignore_order
      assert_equal authors(:david).id + 1, authors(:mary).id # make sure there is going to be a duplicate PK error
      test_update_with_order_succeeds = lambda do |order|
        begin
          Author.order(order).update_all('id = id + 1')
        rescue ActiveRecord::ActiveRecordError
          false
        end
      end

      if test_update_with_order_succeeds.call('id DESC')
        assert !test_update_with_order_succeeds.call('id ASC') # test that this wasn't a fluke and using an incorrect order results in an exception
      else
        # test that we're failing because the current Arel's engine doesn't support UPDATE ORDER BY queries is using subselects instead
        assert_sql(/\AUPDATE .+ \(SELECT .* ORDER BY id DESC\)\Z/i) do
          test_update_with_order_succeeds.call('id DESC')
        end
      end
    end

    def test_update_all_with_order_and_limit_updates_subset_only
      author = authors(:david)
      assert_nothing_raised do
        assert_equal 1, author.posts_sorted_by_id_limited.size
        assert_equal 2, author.posts_sorted_by_id_limited.limit(2).to_a.size
        assert_equal 1, author.posts_sorted_by_id_limited.update_all([ "body = ?", "bulk update!" ])
        assert_equal "bulk update!", posts(:welcome).body
        assert_not_equal "bulk update!", posts(:thinking).body
      end
    end
  end

  def test_update_many
    topic_data = { 1 => { "content" => "1 updated" }, 2 => { "content" => "2 updated" } }
    updated = Topic.update(topic_data.keys, topic_data.values)

    assert_equal 2, updated.size
    assert_equal "1 updated", Topic.find(1).content
    assert_equal "2 updated", Topic.find(2).content
  end

  def test_delete_all
    assert Topic.count > 0

    assert_equal Topic.count, Topic.delete_all
  end

  def test_delete_all_with_joins_and_where_part_is_hash
    where_args = {:toys => {:name => 'Bone'}}
    count = Pet.joins(:toys).where(where_args).count

    assert_equal count, 1
    assert_equal count, Pet.joins(:toys).where(where_args).delete_all
  end

  def test_delete_all_with_joins_and_where_part_is_not_hash
    where_args = ['toys.name = ?', 'Bone']
    count = Pet.joins(:toys).where(where_args).count

    assert_equal count, 1
    assert_equal count, Pet.joins(:toys).where(where_args).delete_all
  end

  def test_increment_attribute
    assert_equal 50, accounts(:signals37).credit_limit
    accounts(:signals37).increment! :credit_limit
    assert_equal 51, accounts(:signals37, :reload).credit_limit

    accounts(:signals37).increment(:credit_limit).increment!(:credit_limit)
    assert_equal 53, accounts(:signals37, :reload).credit_limit
  end

  def test_increment_nil_attribute
    assert_nil topics(:first).parent_id
    topics(:first).increment! :parent_id
    assert_equal 1, topics(:first).parent_id
  end

  def test_increment_attribute_by
    assert_equal 50, accounts(:signals37).credit_limit
    accounts(:signals37).increment! :credit_limit, 5
    assert_equal 55, accounts(:signals37, :reload).credit_limit

    accounts(:signals37).increment(:credit_limit, 1).increment!(:credit_limit, 3)
    assert_equal 59, accounts(:signals37, :reload).credit_limit
  end

  def test_increment_updates_counter_in_db_using_offset
    a1 = accounts(:signals37)
    initial_credit = a1.credit_limit
    a2 = Account.find(accounts(:signals37).id)
    a1.increment!(:credit_limit)
    a2.increment!(:credit_limit)
    assert_equal initial_credit + 2, a1.reload.credit_limit
  end

  def test_destroy_all
    conditions = "author_name = 'Mary'"
    topics_by_mary = Topic.all.merge!(:where => conditions, :order => 'id').to_a
    assert ! topics_by_mary.empty?

    assert_difference('Topic.count', -topics_by_mary.size) do
      destroyed = Topic.where(conditions).destroy_all.sort_by(&:id)
      assert_equal topics_by_mary, destroyed
      assert destroyed.all?(&:frozen?), "destroyed topics should be frozen"
    end
  end

  def test_destroy_many
    clients = Client.all.merge!(:order => 'id').find([2, 3])

    assert_difference('Client.count', -2) do
      destroyed = Client.destroy([2, 3]).sort_by(&:id)
      assert_equal clients, destroyed
      assert destroyed.all?(&:frozen?), "destroyed clients should be frozen"
    end
  end

  def test_becomes
    assert_kind_of Reply, topics(:first).becomes(Reply)
    assert_equal "The First Topic", topics(:first).becomes(Reply).title
  end

  def test_becomes_includes_errors
    company = Company.new(:name => nil)
    assert !company.valid?
    original_errors = company.errors
    client = company.becomes(Client)
    assert_equal original_errors.keys, client.errors.keys
  end

  def test_becomes_errors_base
    child_class = Class.new(Admin::User) do
      store_accessor :settings, :foo

      def self.name; 'Admin::ChildUser'; end
    end

    admin = Admin::User.new
    admin.errors.add :token, :invalid
    child = admin.becomes(child_class)

    assert_equal [:token], child.errors.keys
    assert_nothing_raised do
      child.errors.add :foo, :invalid
    end
  end

  def test_duped_becomes_persists_changes_from_the_original
    original = topics(:first)
    copy = original.dup.becomes(Reply)
    copy.save!
    assert_equal "The First Topic", Topic.find(copy.id).title
  end

  def test_becomes_includes_changed_attributes
    company = Company.new(name: "37signals")
    client = company.becomes(Client)
    assert_equal "37signals", client.name
    assert_equal %w{name}, client.changed
  end

  def test_delete_many
    original_count = Topic.count
    Topic.delete(deleting = [1, 2])
    assert_equal original_count - deleting.size, Topic.count
  end

  def test_decrement_attribute
    assert_equal 50, accounts(:signals37).credit_limit

    accounts(:signals37).decrement!(:credit_limit)
    assert_equal 49, accounts(:signals37, :reload).credit_limit

    accounts(:signals37).decrement(:credit_limit).decrement!(:credit_limit)
    assert_equal 47, accounts(:signals37, :reload).credit_limit
  end

  def test_decrement_attribute_by
    assert_equal 50, accounts(:signals37).credit_limit
    accounts(:signals37).decrement! :credit_limit, 5
    assert_equal 45, accounts(:signals37, :reload).credit_limit

    accounts(:signals37).decrement(:credit_limit, 1).decrement!(:credit_limit, 3)
    assert_equal 41, accounts(:signals37, :reload).credit_limit
  end

  def test_create
    topic = Topic.new
    topic.title = "New Topic"
    topic.save
    topic_reloaded = Topic.find(topic.id)
    assert_equal("New Topic", topic_reloaded.title)
  end

  def test_save!
    topic = Topic.new(:title => "New Topic")
    assert topic.save!

    reply = WrongReply.new
    assert_raise(ActiveRecord::RecordInvalid) { reply.save! }
  end

  def test_save_null_string_attributes
    topic = Topic.find(1)
    topic.attributes = { "title" => "null", "author_name" => "null" }
    topic.save!
    topic.reload
    assert_equal("null", topic.title)
    assert_equal("null", topic.author_name)
  end

  def test_save_nil_string_attributes
    topic = Topic.find(1)
    topic.title = nil
    topic.save!
    topic.reload
    assert_nil topic.title
  end

  def test_save_for_record_with_only_primary_key
    minimalistic = Minimalistic.new
    assert_nothing_raised { minimalistic.save }
  end

  def test_save_for_record_with_only_primary_key_that_is_provided
    assert_nothing_raised { Minimalistic.create!(:id => 2) }
  end

  def test_save_with_duping_of_destroyed_object
    developer = Developer.first
    developer.destroy
    new_developer = developer.dup
    new_developer.save
    assert new_developer.persisted?
    assert_not new_developer.destroyed?
  end

  def test_create_many
    topics = Topic.create([ { "title" => "first" }, { "title" => "second" }])
    assert_equal 2, topics.size
    assert_equal "first", topics.first.title
  end

  def test_create_columns_not_equal_attributes
    topic = Topic.instantiate(
      'attributes' => {
        'title'          => 'Another New Topic',
        'does_not_exist' => 'test'
      }
    )
    assert_nothing_raised { topic.save }
  end

  def test_create_through_factory_with_block
    topic = Topic.create("title" => "New Topic") do |t|
      t.author_name = "David"
    end
    assert_equal("New Topic", topic.title)
    assert_equal("David", topic.author_name)
  end

  def test_create_many_through_factory_with_block
    topics = Topic.create([ { "title" => "first" }, { "title" => "second" }]) do |t|
      t.author_name = "David"
    end
    assert_equal 2, topics.size
    topic1, topic2 = Topic.find(topics[0].id), Topic.find(topics[1].id)
    assert_equal "first", topic1.title
    assert_equal "David", topic1.author_name
    assert_equal "second", topic2.title
    assert_equal "David", topic2.author_name
  end

  def test_update_object
    topic = Topic.new
    topic.title = "Another New Topic"
    topic.written_on = "2003-12-12 23:23:00"
    topic.save
    topic_reloaded = Topic.find(topic.id)
    assert_equal("Another New Topic", topic_reloaded.title)

    topic_reloaded.title = "Updated topic"
    topic_reloaded.save

    topic_reloaded_again = Topic.find(topic.id)

    assert_equal("Updated topic", topic_reloaded_again.title)
  end

  def test_update_columns_not_equal_attributes
    topic = Topic.new
    topic.title = "Still another topic"
    topic.save

    topic_reloaded = Topic.instantiate(topic.attributes.merge('does_not_exist' => 'test'))
    topic_reloaded.title = 'A New Topic'
    assert_nothing_raised { topic_reloaded.save }
  end

  def test_update_for_record_with_only_primary_key
    minimalistic = minimalistics(:first)
    assert_nothing_raised { minimalistic.save }
  end

  def test_update_sti_type
    assert_instance_of Reply, topics(:second)

    topic = topics(:second).becomes!(Topic)
    assert_instance_of Topic, topic
    topic.save!
    assert_instance_of Topic, Topic.find(topic.id)
  end

  def test_preserve_original_sti_type
    reply = topics(:second)
    assert_equal "Reply", reply.type

    topic = reply.becomes(Topic)
    assert_equal "Reply", reply.type

    assert_instance_of Topic, topic
    assert_equal "Reply", topic.type
  end

  def test_update_sti_subclass_type
    assert_instance_of Topic, topics(:first)

    reply = topics(:first).becomes!(Reply)
    assert_instance_of Reply, reply
    reply.save!
    assert_instance_of Reply, Reply.find(reply.id)
  end

  def test_update_after_create
    klass = Class.new(Topic) do
      def self.name; 'Topic'; end
      after_create do
        update_attribute("author_name", "David")
      end
    end
    topic = klass.new
    topic.title = "Another New Topic"
    topic.save

    topic_reloaded = Topic.find(topic.id)
    assert_equal("Another New Topic", topic_reloaded.title)
    assert_equal("David", topic_reloaded.author_name)
  end

  def test_update_attribute_does_not_run_sql_if_attribute_is_not_changed
    klass = Class.new(Topic) do
      def self.name; 'Topic'; end
    end
    topic = klass.create(title: 'Another New Topic')
    assert_queries(0) do
      topic.update_attribute(:title, 'Another New Topic')
    end
  end

  def test_update_does_not_run_sql_if_record_has_not_changed
    topic = Topic.create(title: 'Another New Topic')
    assert_queries(0) { topic.update(title: 'Another New Topic') }
    assert_queries(0) { topic.update_attributes(title: 'Another New Topic') }
  end

  def test_delete
    topic = Topic.find(1)
    assert_equal topic, topic.delete, 'topic.delete did not return self'
    assert topic.frozen?, 'topic not frozen after delete'
    assert_raise(ActiveRecord::RecordNotFound) { Topic.find(topic.id) }
  end

  def test_delete_doesnt_run_callbacks
    Topic.find(1).delete
    assert_not_nil Topic.find(2)
  end

  def test_destroy
    topic = Topic.find(1)
    assert_equal topic, topic.destroy, 'topic.destroy did not return self'
    assert topic.frozen?, 'topic not frozen after destroy'
    assert_raise(ActiveRecord::RecordNotFound) { Topic.find(topic.id) }
  end

  def test_destroy!
    topic = Topic.find(1)
    assert_equal topic, topic.destroy!, 'topic.destroy! did not return self'
    assert topic.frozen?, 'topic not frozen after destroy!'
    assert_raise(ActiveRecord::RecordNotFound) { Topic.find(topic.id) }
  end

  def test_record_not_found_exception
    assert_raise(ActiveRecord::RecordNotFound) { Topic.find(99999) }
  end

  def test_update_all
    assert_equal Topic.count, Topic.update_all("content = 'bulk updated!'")
    assert_equal "bulk updated!", Topic.find(1).content
    assert_equal "bulk updated!", Topic.find(2).content

    assert_equal Topic.count, Topic.update_all(['content = ?', 'bulk updated again!'])
    assert_equal "bulk updated again!", Topic.find(1).content
    assert_equal "bulk updated again!", Topic.find(2).content

    assert_equal Topic.count, Topic.update_all(['content = ?', nil])
    assert_nil Topic.find(1).content
  end

  def test_update_all_with_hash
    assert_not_nil Topic.find(1).last_read
    assert_equal Topic.count, Topic.update_all(:content => 'bulk updated with hash!', :last_read => nil)
    assert_equal "bulk updated with hash!", Topic.find(1).content
    assert_equal "bulk updated with hash!", Topic.find(2).content
    assert_nil Topic.find(1).last_read
    assert_nil Topic.find(2).last_read
  end

  def test_update_all_with_non_standard_table_name
    assert_equal 1, WarehouseThing.where(id: 1).update_all(['value = ?', 0])
    assert_equal 0, WarehouseThing.find(1).value
  end

  def test_delete_new_record
    client = Client.new
    client.delete
    assert client.frozen?
  end

  def test_delete_record_with_associations
    client = Client.find(3)
    client.delete
    assert client.frozen?
    assert_kind_of Firm, client.firm
    assert_raise(RuntimeError) { client.name = "something else" }
  end

  def test_destroy_new_record
    client = Client.new
    client.destroy
    assert client.frozen?
  end

  def test_destroy_record_with_associations
    client = Client.find(3)
    client.destroy
    assert client.frozen?
    assert_kind_of Firm, client.firm
    assert_raise(RuntimeError) { client.name = "something else" }
  end

  def test_update_attribute
    assert !Topic.find(1).approved?
    Topic.find(1).update_attribute("approved", true)
    assert Topic.find(1).approved?

    Topic.find(1).update_attribute(:approved, false)
    assert !Topic.find(1).approved?
  end

  def test_update_attribute_for_readonly_attribute
    minivan = Minivan.find('m1')
    assert_raises(ActiveRecord::ActiveRecordError) { minivan.update_attribute(:color, 'black') }
  end

  def test_update_attribute_with_one_updated
    t = Topic.first
    t.update_attribute(:title, 'super_title')
    assert_equal 'super_title', t.title
    assert !t.changed?, "topic should not have changed"
    assert !t.title_changed?, "title should not have changed"
    assert_nil t.title_change, 'title change should be nil'

    t.reload
    assert_equal 'super_title', t.title
  end

  def test_update_attribute_for_updated_at_on
    developer = Developer.find(1)
    prev_month = Time.now.prev_month.change(usec: 0)

    developer.update_attribute(:updated_at, prev_month)
    assert_equal prev_month, developer.updated_at

    developer.update_attribute(:salary, 80001)
    assert_not_equal prev_month, developer.updated_at

    developer.reload
    assert_not_equal prev_month, developer.updated_at
  end

  def test_update_column
    topic = Topic.find(1)
    topic.update_column("approved", true)
    assert topic.approved?
    topic.reload
    assert topic.approved?

    topic.update_column(:approved, false)
    assert !topic.approved?
    topic.reload
    assert !topic.approved?
  end

  def test_update_column_should_not_use_setter_method
    dev = Developer.find(1)
    dev.instance_eval { def salary=(value); write_attribute(:salary, value * 2); end }

    dev.update_column(:salary, 80000)
    assert_equal 80000, dev.salary

    dev.reload
    assert_equal 80000, dev.salary
  end

  def test_update_column_should_raise_exception_if_new_record
    topic = Topic.new
    assert_raises(ActiveRecord::ActiveRecordError) { topic.update_column("approved", false) }
  end

  def test_update_column_should_not_leave_the_object_dirty
    topic = Topic.find(1)
    topic.update_column("content", "--- Have a nice day\n...\n")

    topic.reload
    topic.update_column(:content, "--- You too\n...\n")
    assert_equal [], topic.changed

    topic.reload
    topic.update_column("content", "--- Have a nice day\n...\n")
    assert_equal [], topic.changed
  end

  def test_update_column_with_model_having_primary_key_other_than_id
    minivan = Minivan.find('m1')
    new_name = 'sebavan'

    minivan.update_column(:name, new_name)
    assert_equal new_name, minivan.name
  end

  def test_update_column_for_readonly_attribute
    minivan = Minivan.find('m1')
    prev_color = minivan.color
    assert_raises(ActiveRecord::ActiveRecordError) { minivan.update_column(:color, 'black') }
    assert_equal prev_color, minivan.color
  end

  def test_update_column_should_not_modify_updated_at
    developer = Developer.find(1)
    prev_month = Time.now.prev_month.change(usec: 0)

    developer.update_column(:updated_at, prev_month)
    assert_equal prev_month, developer.updated_at

    developer.update_column(:salary, 80001)
    assert_equal prev_month, developer.updated_at

    developer.reload
    assert_equal prev_month.to_i, developer.updated_at.to_i
  end

  def test_update_column_with_one_changed_and_one_updated
    t = Topic.order('id').limit(1).first
    author_name = t.author_name
    t.author_name = 'John'
    t.update_column(:title, 'super_title')
    assert_equal 'John', t.author_name
    assert_equal 'super_title', t.title
    assert t.changed?, "topic should have changed"
    assert t.author_name_changed?, "author_name should have changed"

    t.reload
    assert_equal author_name, t.author_name
    assert_equal 'super_title', t.title
  end

  def test_update_column_with_default_scope
    developer = DeveloperCalledDavid.first
    developer.name = 'John'
    developer.save!

    assert developer.update_column(:name, 'Will'), 'did not update record due to default scope'
  end

  def test_update_columns
    topic = Topic.find(1)
    topic.update_columns({ "approved" => true, title: "Sebastian Topic" })
    assert topic.approved?
    assert_equal "Sebastian Topic", topic.title
    topic.reload
    assert topic.approved?
    assert_equal "Sebastian Topic", topic.title
  end

  def test_update_columns_should_not_use_setter_method
    dev = Developer.find(1)
    dev.instance_eval { def salary=(value); write_attribute(:salary, value * 2); end }

    dev.update_columns(salary: 80000)
    assert_equal 80000, dev.salary

    dev.reload
    assert_equal 80000, dev.salary
  end

  def test_update_columns_should_raise_exception_if_new_record
    topic = Topic.new
    assert_raises(ActiveRecord::ActiveRecordError) { topic.update_columns({ approved: false }) }
  end

  def test_update_columns_should_not_leave_the_object_dirty
    topic = Topic.find(1)
    topic.update({ "content" => "--- Have a nice day\n...\n", :author_name => "Jose" })

    topic.reload
    topic.update_columns({ content: "--- You too\n...\n", "author_name" => "Sebastian" })
    assert_equal [], topic.changed

    topic.reload
    topic.update_columns({ content: "--- Have a nice day\n...\n", author_name: "Jose" })
    assert_equal [], topic.changed
  end

  def test_update_columns_with_model_having_primary_key_other_than_id
    minivan = Minivan.find('m1')
    new_name = 'sebavan'

    minivan.update_columns(name: new_name)
    assert_equal new_name, minivan.name
  end

  def test_update_columns_with_one_readonly_attribute
    minivan = Minivan.find('m1')
    prev_color = minivan.color
    prev_name = minivan.name
    assert_raises(ActiveRecord::ActiveRecordError) { minivan.update_columns({ name: "My old minivan", color: 'black' }) }
    assert_equal prev_color, minivan.color
    assert_equal prev_name, minivan.name

    minivan.reload
    assert_equal prev_color, minivan.color
    assert_equal prev_name, minivan.name
  end

  def test_update_columns_should_not_modify_updated_at
    developer = Developer.find(1)
    prev_month = Time.now.prev_month.change(usec: 0)

    developer.update_columns(updated_at: prev_month)
    assert_equal prev_month, developer.updated_at

    developer.update_columns(salary: 80000)
    assert_equal prev_month, developer.updated_at
    assert_equal 80000, developer.salary

    developer.reload
    assert_equal prev_month.to_i, developer.updated_at.to_i
    assert_equal 80000, developer.salary
  end

  def test_update_columns_with_one_changed_and_one_updated
    t = Topic.order('id').limit(1).first
    author_name = t.author_name
    t.author_name = 'John'
    t.update_columns(title: 'super_title')
    assert_equal 'John', t.author_name
    assert_equal 'super_title', t.title
    assert t.changed?, "topic should have changed"
    assert t.author_name_changed?, "author_name should have changed"

    t.reload
    assert_equal author_name, t.author_name
    assert_equal 'super_title', t.title
  end

  def test_update_columns_changing_id
    topic = Topic.find(1)
    topic.update_columns(id: 123)
    assert_equal 123, topic.id
    topic.reload
    assert_equal 123, topic.id
  end

  def test_update_columns_returns_boolean
    topic = Topic.find(1)
    assert_equal true, topic.update_columns(title: "New title")
  end

  def test_update_columns_with_default_scope
    developer = DeveloperCalledDavid.first
    developer.name = 'John'
    developer.save!

    assert developer.update_columns(name: 'Will'), 'did not update record due to default scope'
  end

  def test_update
    topic = Topic.find(1)
    assert !topic.approved?
    assert_equal "The First Topic", topic.title

    topic.update("approved" => true, "title" => "The First Topic Updated")
    topic.reload
    assert topic.approved?
    assert_equal "The First Topic Updated", topic.title

    topic.update(approved: false, title: "The First Topic")
    topic.reload
    assert !topic.approved?
    assert_equal "The First Topic", topic.title
  end

  def test_update_attributes
    topic = Topic.find(1)
    assert !topic.approved?
    assert_equal "The First Topic", topic.title

    topic.update_attributes("approved" => true, "title" => "The First Topic Updated")
    topic.reload
    assert topic.approved?
    assert_equal "The First Topic Updated", topic.title

    topic.update_attributes(approved: false, title: "The First Topic")
    topic.reload
    assert !topic.approved?
    assert_equal "The First Topic", topic.title

    error = assert_raise(ActiveRecord::RecordNotUnique, ActiveRecord::StatementInvalid) do
      topic.update_attributes(id: 3, title: "Hm is it possible?")
    end
    assert_not_nil error.cause
    assert_not_equal "Hm is it possible?", Topic.find(3).title

    topic.update_attributes(id: 1234)
    assert_nothing_raised { topic.reload }
    assert_equal topic.title, Topic.find(1234).title
  end

  def test_update_attributes_parameters
    topic = Topic.find(1)
    assert_nothing_raised do
      topic.update_attributes({})
    end

    assert_raises(ArgumentError) do
      topic.update_attributes(nil)
    end
  end

  def test_update!
    Reply.validates_presence_of(:title)
    reply = Reply.find(2)
    assert_equal "The Second Topic of the day", reply.title
    assert_equal "Have a nice day", reply.content

    reply.update!("title" => "The Second Topic of the day updated", "content" => "Have a nice evening")
    reply.reload
    assert_equal "The Second Topic of the day updated", reply.title
    assert_equal "Have a nice evening", reply.content

    reply.update!(title: "The Second Topic of the day", content: "Have a nice day")
    reply.reload
    assert_equal "The Second Topic of the day", reply.title
    assert_equal "Have a nice day", reply.content

    assert_raise(ActiveRecord::RecordInvalid) { reply.update!(title: nil, content: "Have a nice evening") }
  ensure
    Reply.clear_validators!
  end

  def test_update_attributes!
    Reply.validates_presence_of(:title)
    reply = Reply.find(2)
    assert_equal "The Second Topic of the day", reply.title
    assert_equal "Have a nice day", reply.content

    reply.update_attributes!("title" => "The Second Topic of the day updated", "content" => "Have a nice evening")
    reply.reload
    assert_equal "The Second Topic of the day updated", reply.title
    assert_equal "Have a nice evening", reply.content

    reply.update_attributes!(title: "The Second Topic of the day", content: "Have a nice day")
    reply.reload
    assert_equal "The Second Topic of the day", reply.title
    assert_equal "Have a nice day", reply.content

    assert_raise(ActiveRecord::RecordInvalid) { reply.update_attributes!(title: nil, content: "Have a nice evening") }
  ensure
    Reply.clear_validators!
  end

  def test_destroyed_returns_boolean
    developer = Developer.first
    assert_equal false, developer.destroyed?
    developer.destroy
    assert_equal true, developer.destroyed?

    developer = Developer.last
    assert_equal false, developer.destroyed?
    developer.delete
    assert_equal true, developer.destroyed?
  end

  def test_persisted_returns_boolean
    developer = Developer.new(:name => "Jose")
    assert_equal false, developer.persisted?
    developer.save!
    assert_equal true, developer.persisted?

    developer = Developer.first
    assert_equal true, developer.persisted?
    developer.destroy
    assert_equal false, developer.persisted?

    developer = Developer.last
    assert_equal true, developer.persisted?
    developer.delete
    assert_equal false, developer.persisted?
  end

  def test_class_level_destroy
    should_be_destroyed_reply = Reply.create("title" => "hello", "content" => "world")
    Topic.find(1).replies << should_be_destroyed_reply

    Topic.destroy(1)
    assert_raise(ActiveRecord::RecordNotFound) { Topic.find(1) }
    assert_raise(ActiveRecord::RecordNotFound) { Reply.find(should_be_destroyed_reply.id) }
  end

  def test_class_level_delete
    should_be_destroyed_reply = Reply.create("title" => "hello", "content" => "world")
    Topic.find(1).replies << should_be_destroyed_reply

    Topic.delete(1)
    assert_raise(ActiveRecord::RecordNotFound) { Topic.find(1) }
    assert_nothing_raised { Reply.find(should_be_destroyed_reply.id) }
  end

  def test_create_with_custom_timestamps
    custom_datetime = 1.hour.ago.beginning_of_day

    %w(created_at created_on updated_at updated_on).each do |attribute|
      parrot = LiveParrot.create(:name => "colombian", attribute => custom_datetime)
      assert_equal custom_datetime, parrot[attribute]
    end
  end

  def test_persist_inherited_class_with_different_table_name
    minimalistic_aircrafts = Class.new(Minimalistic) do
      self.table_name = "aircraft"
    end

    assert_difference "Aircraft.count", 1 do
      aircraft = minimalistic_aircrafts.create(name: "Wright Flyer")
      aircraft.name = "Wright Glider"
      aircraft.save
    end

    assert_equal "Wright Glider", Aircraft.last.name
  end

  def test_instantiate_creates_a_new_instance
    post = Post.instantiate("title" => "appropriate documentation", "type" => "SpecialPost")
    assert_equal "appropriate documentation", post.title
    assert_instance_of SpecialPost, post

    # body was not initialized
    assert_raises ActiveModel::MissingAttributeError do
      post.body
    end
  end

  def test_reload_removes_custom_selects
    post = Post.select('posts.*, 1 as wibble').last!

    assert_equal 1, post[:wibble]
    assert_nil post.reload[:wibble]
  end

  def test_find_via_reload
    post = Post.new

    assert post.new_record?

    post.id = 1
    post.reload

    assert_equal "Welcome to the weblog", post.title
    assert_not post.new_record?
  end

  def test_reload_via_querycache
    ActiveRecord::Base.connection.enable_query_cache!
    ActiveRecord::Base.connection.clear_query_cache
    assert ActiveRecord::Base.connection.query_cache_enabled, 'cache should be on'
    parrot = Parrot.create(:name => 'Shane')

    # populate the cache with the SELECT result
    found_parrot = Parrot.find(parrot.id)
    assert_equal parrot.id, found_parrot.id

    # Manually update the 'name' attribute in the DB directly
    assert_equal 1, ActiveRecord::Base.connection.query_cache.length
    ActiveRecord::Base.uncached do
      found_parrot.name = 'Mary'
      found_parrot.save
    end

    # Now reload, and verify that it gets the DB version, and not the querycache version
    found_parrot.reload
    assert_equal 'Mary', found_parrot.name

    found_parrot = Parrot.find(parrot.id)
    assert_equal 'Mary', found_parrot.name
  ensure
    ActiveRecord::Base.connection.disable_query_cache!
  end

  class SaveTest < ActiveRecord::TestCase
    self.use_transactional_tests = false

    def test_save_touch_false
      widget = Class.new(ActiveRecord::Base) do
        connection.create_table :widgets, force: true do |t|
          t.string :name
          t.timestamps null: false
        end

        self.table_name = :widgets
      end

      instance  = widget.create!({
        name: 'Bob',
        created_at: 1.day.ago,
        updated_at: 1.day.ago
      })

      created_at = instance.created_at
      updated_at = instance.updated_at

      instance.name = 'Barb'
      instance.save!(touch: false)
      assert_equal instance.created_at, created_at
      assert_equal instance.updated_at, updated_at
    ensure
      ActiveRecord::Base.connection.drop_table widget.table_name
      widget.reset_column_information
    end
  end

  def test_reset_column_information_resets_children
    child = Class.new(Topic)
    child.new # force schema to load

    ActiveRecord::Base.connection.add_column(:topics, :foo, :string)
    Topic.reset_column_information

    assert_equal "bar", child.new(foo: :bar).foo
  ensure
    ActiveRecord::Base.connection.remove_column(:topics, :foo)
    Topic.reset_column_information
  end
end