aboutsummaryrefslogtreecommitdiffstats
path: root/activerecord/test/cases/finder_test.rb
blob: 576a455f09a711d9428be178041a181feb44e2f0 (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
require "cases/helper"
require 'models/post'
require 'models/author'
require 'models/categorization'
require 'models/comment'
require 'models/company'
require 'models/topic'
require 'models/reply'
require 'models/entrant'
require 'models/project'
require 'models/developer'
require 'models/customer'
require 'models/toy'

class FinderTest < ActiveRecord::TestCase
  fixtures :companies, :topics, :entrants, :developers, :developers_projects, :posts, :comments, :accounts, :authors, :customers, :categories, :categorizations

  def test_find
    assert_equal(topics(:first).title, Topic.find(1).title)
  end

  # find should handle strings that come from URLs
  # (example: Category.find(params[:id]))
  def test_find_with_string
    assert_equal(Topic.find(1).title,Topic.find("1").title)
  end

  def test_exists
    assert Topic.exists?(1)
    assert Topic.exists?("1")
    assert Topic.exists?(:author_name => "David")
    assert Topic.exists?(:author_name => "Mary", :approved => true)
    assert Topic.exists?(["parent_id = ?", 1])
    assert !Topic.exists?(45)
    assert !Topic.exists?(Topic.new)

    begin
      assert !Topic.exists?("foo")
    rescue ActiveRecord::StatementInvalid
      # PostgreSQL complains about string comparison with integer field
    rescue Exception
      flunk
    end

    assert_raise(NoMethodError) { Topic.exists?([1,2]) }
  end

  def test_exists_does_not_select_columns_without_alias
    assert_sql(/SELECT\W+1 AS one FROM ["`]topics["`]/i) do
      Topic.exists?
    end
  end

  def test_exists_returns_true_with_one_record_and_no_args
    assert Topic.exists?
  end

  def test_exists_returns_false_with_false_arg
    assert !Topic.exists?(false)
  end

  # exists? should handle nil for id's that come from URLs and always return false
  # (example: Topic.exists?(params[:id])) where params[:id] is nil
  def test_exists_with_nil_arg
    assert !Topic.exists?(nil)
    assert Topic.exists?
    assert !Topic.first.replies.exists?(nil)
    assert Topic.first.replies.exists?
  end

  # ensures +exists?+ runs valid SQL by excluding order value
  def test_exists_with_order
    assert Topic.order(:id).uniq.exists?
  end

  def test_exists_with_includes_limit_and_empty_result
    assert !Topic.includes(:replies).limit(0).exists?
    assert !Topic.includes(:replies).limit(1).where('0 = 1').exists?
  end

  def test_exists_with_empty_table_and_no_args_given
    Topic.delete_all
    assert !Topic.exists?
  end

  def test_exists_does_not_instantiate_records
    Developer.expects(:instantiate).never
    Developer.exists?
  end

  def test_find_by_array_of_one_id
    assert_kind_of(Array, Topic.find([ 1 ]))
    assert_equal(1, Topic.find([ 1 ]).length)
  end

  def test_find_by_ids
    assert_equal 2, Topic.find(1, 2).size
    assert_equal topics(:second).title, Topic.find([2]).first.title
  end

  def test_find_by_ids_with_limit_and_offset
    assert_equal 2, Entrant.scoped(:limit => 2).find([1,3,2]).size
    assert_equal 1, Entrant.scoped(:limit => 3, :offset => 2).find([1,3,2]).size

    # Also test an edge case: If you have 11 results, and you set a
    #   limit of 3 and offset of 9, then you should find that there
    #   will be only 2 results, regardless of the limit.
    devs = Developer.all
    last_devs = Developer.scoped(:limit => 3, :offset => 9).find devs.map(&:id)
    assert_equal 2, last_devs.size
  end

  def test_find_an_empty_array
    assert_equal [], Topic.find([])
  end

  def test_find_doesnt_have_implicit_ordering
    assert_sql(/^((?!ORDER).)*$/) { Topic.find(1) }
  end

  def test_find_by_ids_missing_one
    assert_raise(ActiveRecord::RecordNotFound) { Topic.find(1, 2, 45) }
  end

  def test_find_with_group_and_sanitized_having_method
    developers = Developer.group(:salary).having("sum(salary) > ?", 10000).select('salary').all
    assert_equal 3, developers.size
    assert_equal 3, developers.map(&:salary).uniq.size
    assert developers.all? { |developer| developer.salary > 10000 }
  end

  def test_find_with_entire_select_statement
    topics = Topic.find_by_sql "SELECT * FROM topics WHERE author_name = 'Mary'"

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

  def test_find_with_prepared_select_statement
    topics = Topic.find_by_sql ["SELECT * FROM topics WHERE author_name = ?", "Mary"]

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

  def test_find_by_sql_with_sti_on_joined_table
    accounts = Account.find_by_sql("SELECT * FROM accounts INNER JOIN companies ON companies.id = accounts.firm_id")
    assert_equal [Account], accounts.collect(&:class).uniq
  end

  def test_take
    assert_equal topics(:first), Topic.take
  end

  def test_take_failing
    assert_nil Topic.where("title = 'This title does not exist'").take
  end

  def test_take_bang_present
    assert_nothing_raised do
      assert_equal topics(:second), Topic.where("title = 'The Second Topic of the day'").take!
    end
  end

  def test_take_bang_missing
    assert_raises ActiveRecord::RecordNotFound do
      Topic.where("title = 'This title does not exist'").take!
    end
  end

  def test_first
    assert_equal topics(:second).title, Topic.where("title = 'The Second Topic of the day'").first.title
  end

  def test_first_failing
    assert_nil Topic.where("title = 'The Second Topic of the day!'").first
  end

  def test_first_bang_present
    assert_nothing_raised do
      assert_equal topics(:second), Topic.where("title = 'The Second Topic of the day'").first!
    end
  end

  def test_first_bang_missing
    assert_raises ActiveRecord::RecordNotFound do
      Topic.where("title = 'This title does not exist'").first!
    end
  end

  def test_first_have_primary_key_order_by_default
    expected = topics(:first)
    expected.touch # PostgreSQL changes the default order if no order clause is used
    assert_equal expected, Topic.first
  end

  def test_model_class_responds_to_first_bang
    assert Topic.first!
    Topic.delete_all
    assert_raises ActiveRecord::RecordNotFound do
      Topic.first!
    end
  end

  def test_last_bang_present
    assert_nothing_raised do
      assert_equal topics(:second), Topic.where("title = 'The Second Topic of the day'").last!
    end
  end

  def test_last_bang_missing
    assert_raises ActiveRecord::RecordNotFound do
      Topic.where("title = 'This title does not exist'").last!
    end
  end

  def test_model_class_responds_to_last_bang
    assert_equal topics(:fourth), Topic.last!
    assert_raises ActiveRecord::RecordNotFound do
      Topic.delete_all
      Topic.last!
    end
  end

  def test_take_and_first_and_last_with_integer_should_use_sql_limit
    assert_sql(/LIMIT 3|ROWNUM <= 3/) { Topic.take(3).entries }
    assert_sql(/LIMIT 2|ROWNUM <= 2/) { Topic.first(2).entries }
    assert_sql(/LIMIT 5|ROWNUM <= 5/) { Topic.last(5).entries }
  end

  def test_last_with_integer_and_order_should_keep_the_order
    assert_equal Topic.order("title").to_a.last(2), Topic.order("title").last(2)
  end

  def test_last_with_integer_and_order_should_not_use_sql_limit
    query = assert_sql { Topic.order("title").last(5).entries }
    assert_equal 1, query.length
    assert_no_match(/LIMIT/, query.first)
  end

  def test_last_with_integer_and_reorder_should_not_use_sql_limit
    query = assert_sql { Topic.reorder("title").last(5).entries }
    assert_equal 1, query.length
    assert_no_match(/LIMIT/, query.first)
  end

  def test_take_and_first_and_last_with_integer_should_return_an_array
    assert_kind_of Array, Topic.take(5)
    assert_kind_of Array, Topic.first(5)
    assert_kind_of Array, Topic.last(5)
  end

  def test_unexisting_record_exception_handling
    assert_raise(ActiveRecord::RecordNotFound) {
      Topic.find(1).parent
    }

    Topic.find(2).topic
  end

  def test_find_only_some_columns
    topic = Topic.scoped(:select => "author_name").find(1)
    assert_raise(ActiveModel::MissingAttributeError) {topic.title}
    assert_nil topic.read_attribute("title")
    assert_equal "David", topic.author_name
    assert !topic.attribute_present?("title")
    assert !topic.attribute_present?(:title)
    assert topic.attribute_present?("author_name")
    assert_respond_to topic, "author_name"
  end

  def test_find_on_array_conditions
    assert Topic.scoped(:where => ["approved = ?", false]).find(1)
    assert_raise(ActiveRecord::RecordNotFound) { Topic.scoped(:where => ["approved = ?", true]).find(1) }
  end

  def test_find_on_hash_conditions
    assert Topic.scoped(:where => { :approved => false }).find(1)
    assert_raise(ActiveRecord::RecordNotFound) { Topic.scoped(:where => { :approved => true }).find(1) }
  end

  def test_find_on_hash_conditions_with_explicit_table_name
    assert Topic.scoped(:where => { 'topics.approved' => false }).find(1)
    assert_raise(ActiveRecord::RecordNotFound) { Topic.scoped(:where => { 'topics.approved' => true }).find(1) }
  end

  def test_find_on_hash_conditions_with_hashed_table_name
    assert Topic.scoped(:where => {:topics => { :approved => false }}).find(1)
    assert_raise(ActiveRecord::RecordNotFound) { Topic.scoped(:where => {:topics => { :approved => true }}).find(1) }
  end

  def test_find_with_hash_conditions_on_joined_table
    firms = Firm.joins(:account).where(:accounts => { :credit_limit => 50 })
    assert_equal 1, firms.size
    assert_equal companies(:first_firm), firms.first
  end

  def test_find_with_hash_conditions_on_joined_table_and_with_range
    firms = DependentFirm.scoped :joins => :account, :where => {:name => 'RailsCore', :accounts => { :credit_limit => 55..60 }}
    assert_equal 1, firms.size
    assert_equal companies(:rails_core), firms.first
  end

  def test_find_on_association_proxy_conditions
    assert_equal [1, 2, 3, 5, 6, 7, 8, 9, 10, 12], Comment.where(post_id: authors(:david).posts).map(&:id).sort
  end

  def test_find_on_hash_conditions_with_range
    assert_equal [1,2], Topic.scoped(:where => { :id => 1..2 }).all.map(&:id).sort
    assert_raise(ActiveRecord::RecordNotFound) { Topic.scoped(:where => { :id => 2..3 }).find(1) }
  end

  def test_find_on_hash_conditions_with_end_exclusive_range
    assert_equal [1,2,3], Topic.scoped(:where => { :id => 1..3 }).all.map(&:id).sort
    assert_equal [1,2], Topic.scoped(:where => { :id => 1...3 }).all.map(&:id).sort
    assert_raise(ActiveRecord::RecordNotFound) { Topic.scoped(:where => { :id => 2...3 }).find(3) }
  end

  def test_find_on_hash_conditions_with_multiple_ranges
    assert_equal [1,2,3], Comment.scoped(:where => { :id => 1..3, :post_id => 1..2 }).all.map(&:id).sort
    assert_equal [1], Comment.scoped(:where => { :id => 1..1, :post_id => 1..10 }).all.map(&:id).sort
  end

  def test_find_on_hash_conditions_with_array_of_integers_and_ranges
    assert_equal [1,2,3,5,6,7,8,9], Comment.scoped(:where => {:id => [1..2, 3, 5, 6..8, 9]}).all.map(&:id).sort
  end

  def test_find_on_multiple_hash_conditions
    assert Topic.scoped(:where => { :author_name => "David", :title => "The First Topic", :replies_count => 1, :approved => false }).find(1)
    assert_raise(ActiveRecord::RecordNotFound) { Topic.scoped(:where => { :author_name => "David", :title => "The First Topic", :replies_count => 1, :approved => true }).find(1) }
    assert_raise(ActiveRecord::RecordNotFound) { Topic.scoped(:where => { :author_name => "David", :title => "HHC", :replies_count => 1, :approved => false }).find(1) }
    assert_raise(ActiveRecord::RecordNotFound) { Topic.scoped(:where => { :author_name => "David", :title => "The First Topic", :replies_count => 1, :approved => true }).find(1) }
  end

  def test_condition_interpolation
    assert_kind_of Firm, Company.where("name = '%s'", "37signals").first
    assert_nil Company.scoped(:where => ["name = '%s'", "37signals!"]).first
    assert_nil Company.scoped(:where => ["name = '%s'", "37signals!' OR 1=1"]).first
    assert_kind_of Time, Topic.scoped(:where => ["id = %d", 1]).first.written_on
  end

  def test_condition_array_interpolation
    assert_kind_of Firm, Company.scoped(:where => ["name = '%s'", "37signals"]).first
    assert_nil Company.scoped(:where => ["name = '%s'", "37signals!"]).first
    assert_nil Company.scoped(:where => ["name = '%s'", "37signals!' OR 1=1"]).first
    assert_kind_of Time, Topic.scoped(:where => ["id = %d", 1]).first.written_on
  end

  def test_condition_hash_interpolation
    assert_kind_of Firm, Company.scoped(:where => { :name => "37signals"}).first
    assert_nil Company.scoped(:where => { :name => "37signals!"}).first
    assert_kind_of Time, Topic.scoped(:where => {:id => 1}).first.written_on
  end

  def test_hash_condition_find_malformed
    assert_raise(ActiveRecord::StatementInvalid) {
      Company.scoped(:where => { :id => 2, :dhh => true }).first
    }
  end

  def test_hash_condition_find_with_escaped_characters
    Company.create("name" => "Ain't noth'n like' \#stuff")
    assert Company.scoped(:where => { :name => "Ain't noth'n like' \#stuff" }).first
  end

  def test_hash_condition_find_with_array
    p1, p2 = Post.scoped(:limit => 2, :order => 'id asc').all
    assert_equal [p1, p2], Post.scoped(:where => { :id => [p1, p2] }, :order => 'id asc').all
    assert_equal [p1, p2], Post.scoped(:where => { :id => [p1, p2.id] }, :order => 'id asc').all
  end

  def test_hash_condition_find_with_nil
    topic = Topic.scoped(:where => { :last_read => nil } ).first
    assert_not_nil topic
    assert_nil topic.last_read
  end

  def test_condition_utc_time_interpolation_with_default_timezone_local
    with_env_tz 'America/New_York' do
      with_active_record_default_timezone :local do
        topic = Topic.first
        assert_equal topic, Topic.scoped(:where => ['written_on = ?', topic.written_on.getutc]).first
      end
    end
  end

  def test_hash_condition_utc_time_interpolation_with_default_timezone_local
    with_env_tz 'America/New_York' do
      with_active_record_default_timezone :local do
        topic = Topic.first
        assert_equal topic, Topic.scoped(:where => {:written_on => topic.written_on.getutc}).first
      end
    end
  end

  def test_condition_local_time_interpolation_with_default_timezone_utc
    with_env_tz 'America/New_York' do
      with_active_record_default_timezone :utc do
        topic = Topic.first
        assert_equal topic, Topic.scoped(:where => ['written_on = ?', topic.written_on.getlocal]).first
      end
    end
  end

  def test_hash_condition_local_time_interpolation_with_default_timezone_utc
    with_env_tz 'America/New_York' do
      with_active_record_default_timezone :utc do
        topic = Topic.first
        assert_equal topic, Topic.scoped(:where => {:written_on => topic.written_on.getlocal}).first
      end
    end
  end

  def test_bind_variables
    assert_kind_of Firm, Company.scoped(:where => ["name = ?", "37signals"]).first
    assert_nil Company.scoped(:where => ["name = ?", "37signals!"]).first
    assert_nil Company.scoped(:where => ["name = ?", "37signals!' OR 1=1"]).first
    assert_kind_of Time, Topic.scoped(:where => ["id = ?", 1]).first.written_on
    assert_raise(ActiveRecord::PreparedStatementInvalid) {
      Company.scoped(:where => ["id=? AND name = ?", 2]).first
    }
    assert_raise(ActiveRecord::PreparedStatementInvalid) {
     Company.scoped(:where => ["id=?", 2, 3, 4]).first
    }
  end

  def test_bind_variables_with_quotes
    Company.create("name" => "37signals' go'es agains")
    assert Company.scoped(:where => ["name = ?", "37signals' go'es agains"]).first
  end

  def test_named_bind_variables_with_quotes
    Company.create("name" => "37signals' go'es agains")
    assert Company.scoped(:where => ["name = :name", {:name => "37signals' go'es agains"}]).first
  end

  def test_bind_arity
    assert_nothing_raised                                 { bind '' }
    assert_raise(ActiveRecord::PreparedStatementInvalid) { bind '', 1 }

    assert_raise(ActiveRecord::PreparedStatementInvalid) { bind '?' }
    assert_nothing_raised                                 { bind '?', 1 }
    assert_raise(ActiveRecord::PreparedStatementInvalid) { bind '?', 1, 1  }
  end

  def test_named_bind_variables
    assert_equal '1', bind(':a', :a => 1) # ' ruby-mode
    assert_equal '1 1', bind(':a :a', :a => 1)  # ' ruby-mode

    assert_nothing_raised { bind("'+00:00'", :foo => "bar") }

    assert_kind_of Firm, Company.scoped(:where => ["name = :name", { :name => "37signals" }]).first
    assert_nil Company.scoped(:where => ["name = :name", { :name => "37signals!" }]).first
    assert_nil Company.scoped(:where => ["name = :name", { :name => "37signals!' OR 1=1" }]).first
    assert_kind_of Time, Topic.scoped(:where => ["id = :id", { :id => 1 }]).first.written_on
  end

  class SimpleEnumerable
    include Enumerable

    def initialize(ary)
      @ary = ary
    end

    def each(&b)
      @ary.each(&b)
    end
  end

  def test_bind_enumerable
    quoted_abc = %(#{ActiveRecord::Base.connection.quote('a')},#{ActiveRecord::Base.connection.quote('b')},#{ActiveRecord::Base.connection.quote('c')})

    assert_equal '1,2,3', bind('?', [1, 2, 3])
    assert_equal quoted_abc, bind('?', %w(a b c))

    assert_equal '1,2,3', bind(':a', :a => [1, 2, 3])
    assert_equal quoted_abc, bind(':a', :a => %w(a b c)) # '

    assert_equal '1,2,3', bind('?', SimpleEnumerable.new([1, 2, 3]))
    assert_equal quoted_abc, bind('?', SimpleEnumerable.new(%w(a b c)))

    assert_equal '1,2,3', bind(':a', :a => SimpleEnumerable.new([1, 2, 3]))
    assert_equal quoted_abc, bind(':a', :a => SimpleEnumerable.new(%w(a b c))) # '
  end

  def test_bind_empty_enumerable
    quoted_nil = ActiveRecord::Base.connection.quote(nil)
    assert_equal quoted_nil, bind('?', [])
    assert_equal " in (#{quoted_nil})", bind(' in (?)', [])
    assert_equal "foo in (#{quoted_nil})", bind('foo in (?)', [])
  end

  def test_bind_empty_string
    quoted_empty = ActiveRecord::Base.connection.quote('')
    assert_equal quoted_empty, bind('?', '')
  end

  def test_bind_chars
    quoted_bambi = ActiveRecord::Base.connection.quote("Bambi")
    quoted_bambi_and_thumper = ActiveRecord::Base.connection.quote("Bambi\nand\nThumper")
    assert_equal "name=#{quoted_bambi}", bind('name=?', "Bambi")
    assert_equal "name=#{quoted_bambi_and_thumper}", bind('name=?', "Bambi\nand\nThumper")
    assert_equal "name=#{quoted_bambi}", bind('name=?', "Bambi".mb_chars)
    assert_equal "name=#{quoted_bambi_and_thumper}", bind('name=?', "Bambi\nand\nThumper".mb_chars)
  end

  def test_bind_record
    o = Struct.new(:quoted_id).new(1)
    assert_equal '1', bind('?', o)

    os = [o] * 3
    assert_equal '1,1,1', bind('?', os)
  end

  def test_named_bind_with_postgresql_type_casts
    l = Proc.new { bind(":a::integer '2009-01-01'::date", :a => '10') }
    assert_nothing_raised(&l)
    assert_equal "#{ActiveRecord::Base.quote_value('10')}::integer '2009-01-01'::date", l.call
  end

  def test_string_sanitation
    assert_not_equal "'something ' 1=1'", ActiveRecord::Base.sanitize("something ' 1=1")
    assert_equal "'something; select table'", ActiveRecord::Base.sanitize("something; select table")
  end

  def test_count_by_sql
    assert_equal(0, Entrant.count_by_sql("SELECT COUNT(*) FROM entrants WHERE id > 3"))
    assert_equal(1, Entrant.count_by_sql(["SELECT COUNT(*) FROM entrants WHERE id > ?", 2]))
    assert_equal(2, Entrant.count_by_sql(["SELECT COUNT(*) FROM entrants WHERE id > ?", 1]))
  end

  def test_find_by_one_attribute
    assert_equal topics(:first), Topic.find_by_title("The First Topic")
    assert_nil Topic.find_by_title("The First Topic!")
  end

  def test_find_by_one_attribute_bang
    assert_equal topics(:first), Topic.find_by_title!("The First Topic")
    assert_raise(ActiveRecord::RecordNotFound) { Topic.find_by_title!("The First Topic!") }
  end

  def test_find_by_one_attribute_that_is_an_alias
    assert_equal topics(:first), Topic.find_by_heading("The First Topic")
    assert_nil Topic.find_by_heading("The First Topic!")
  end

  def test_find_by_one_attribute_with_conditions
    assert_equal accounts(:rails_core_account), Account.where('firm_id = ?', 6).find_by_credit_limit(50)
  end

  def test_dynamic_finder_on_one_attribute_with_conditions_returns_same_results_after_caching
    # ensure this test can run independently of order
    class << Account; self; end.send(:remove_method, :find_by_credit_limit) if Account.public_methods.include?(:find_by_credit_limit)
    a = Account.where('firm_id = ?', 6).find_by_credit_limit(50)
    assert_equal a, Account.where('firm_id = ?', 6).find_by_credit_limit(50) # find_by_credit_limit has been cached
  end

  def test_find_by_one_attribute_with_several_options
    assert_equal accounts(:unknown), Account.order('id DESC').where('id != ?', 3).find_by_credit_limit(50)
  end

  def test_find_by_one_missing_attribute
    assert_raise(NoMethodError) { Topic.find_by_undertitle("The First Topic!") }
  end

  def test_find_by_invalid_method_syntax
    assert_raise(NoMethodError) { Topic.fail_to_find_by_title("The First Topic") }
    assert_raise(NoMethodError) { Topic.find_by_title?("The First Topic") }
    assert_raise(NoMethodError) { Topic.fail_to_find_or_create_by_title("Nonexistent Title") }
    assert_raise(NoMethodError) { Topic.find_or_create_by_title?("Nonexistent Title") }
  end

  def test_find_by_two_attributes
    assert_equal topics(:first), Topic.find_by_title_and_author_name("The First Topic", "David")
    assert_nil Topic.find_by_title_and_author_name("The First Topic", "Mary")
  end

  def test_find_by_two_attributes_but_passing_only_one
    assert_raise(ArgumentError) { Topic.find_by_title_and_author_name("The First Topic") }
  end

  def test_find_by_nil_attribute
    topic = Topic.find_by_last_read nil
    assert_not_nil topic
    assert_nil topic.last_read
  end

  def test_find_by_nil_and_not_nil_attributes
    topic = Topic.find_by_last_read_and_author_name nil, "Mary"
    assert_equal "Mary", topic.author_name
  end

  def test_find_with_bad_sql
    assert_raise(ActiveRecord::StatementInvalid) { Topic.find_by_sql "select 1 from badtable" }
  end

  def test_find_all_with_join
    developers_on_project_one = Developer.scoped(
      :joins => 'LEFT JOIN developers_projects ON developers.id = developers_projects.developer_id',
      :where => 'project_id=1'
    ).all
    assert_equal 3, developers_on_project_one.length
    developer_names = developers_on_project_one.map { |d| d.name }
    assert developer_names.include?('David')
    assert developer_names.include?('Jamis')
  end

  def test_joins_dont_clobber_id
    first = Firm.scoped(
      :joins => 'INNER JOIN companies clients ON clients.firm_id = companies.id',
      :where => 'companies.id = 1'
    ).first
    assert_equal 1, first.id
  end

  def test_joins_with_string_array
    person_with_reader_and_post = Post.scoped(
      :joins => [
        "INNER JOIN categorizations ON categorizations.post_id = posts.id",
        "INNER JOIN categories ON categories.id = categorizations.category_id AND categories.type = 'SpecialCategory'"
      ]
    )
    assert_equal 1, person_with_reader_and_post.size
  end

  def test_find_by_id_with_conditions_with_or
    assert_nothing_raised do
      Post.where("posts.id <= 3 OR posts.#{QUOTED_TYPE} = 'Post'").find([1,2,3])
    end
  end

  # http://dev.rubyonrails.org/ticket/6778
  def test_find_ignores_previously_inserted_record
    Post.create!(:title => 'test', :body => 'it out')
    assert_equal [], Post.where(id: nil)
  end

  def test_find_by_empty_ids
    assert_equal [], Post.find([])
  end

  def test_find_by_empty_in_condition
    assert_equal [], Post.where('id in (?)', [])
  end

  def test_find_by_records
    p1, p2 = Post.scoped(:limit => 2, :order => 'id asc').all
    assert_equal [p1, p2], Post.scoped(:where => ['id in (?)', [p1, p2]], :order => 'id asc')
    assert_equal [p1, p2], Post.scoped(:where => ['id in (?)', [p1, p2.id]], :order => 'id asc')
  end

  def test_select_value
    assert_equal "37signals", Company.connection.select_value("SELECT name FROM companies WHERE id = 1")
    assert_nil Company.connection.select_value("SELECT name FROM companies WHERE id = -1")
    # make sure we didn't break count...
    assert_equal 0, Company.count_by_sql("SELECT COUNT(*) FROM companies WHERE name = 'Halliburton'")
    assert_equal 1, Company.count_by_sql("SELECT COUNT(*) FROM companies WHERE name = '37signals'")
  end

  def test_select_values
    assert_equal ["1","2","3","4","5","6","7","8","9", "10"], Company.connection.select_values("SELECT id FROM companies ORDER BY id").map! { |i| i.to_s }
    assert_equal ["37signals","Summit","Microsoft", "Flamboyant Software", "Ex Nihilo", "RailsCore", "Leetsoft", "Jadedpixel", "Odegy", "Ex Nihilo Part Deux"], Company.connection.select_values("SELECT name FROM companies ORDER BY id")
  end

  def test_select_rows
    assert_equal(
      [["1", "1", nil, "37signals"],
       ["2", "1", "2", "Summit"],
       ["3", "1", "1", "Microsoft"]],
      Company.connection.select_rows("SELECT id, firm_id, client_of, name FROM companies WHERE id IN (1,2,3) ORDER BY id").map! {|i| i.map! {|j| j.to_s unless j.nil?}})
    assert_equal [["1", "37signals"], ["2", "Summit"], ["3", "Microsoft"]],
      Company.connection.select_rows("SELECT id, name FROM companies WHERE id IN (1,2,3) ORDER BY id").map! {|i| i.map! {|j| j.to_s unless j.nil?}}
  end

  def test_find_with_order_on_included_associations_with_construct_finder_sql_for_association_limiting_and_is_distinct
    assert_equal 2, Post.scoped(:includes => { :authors => :author_address }, :order => 'author_addresses.id DESC ', :limit => 2).all.size

    assert_equal 3, Post.scoped(:includes => { :author => :author_address, :authors => :author_address},
                              :order => 'author_addresses_authors.id DESC ', :limit => 3).all.size
  end

  def test_find_with_nil_inside_set_passed_for_one_attribute
    client_of = Company.scoped(
      :where => {
        :client_of => [2, 1, nil],
        :name => ['37signals', 'Summit', 'Microsoft'] },
      :order => 'client_of DESC'
    ).map { |x| x.client_of }

    assert client_of.include?(nil)
    assert_equal [2, 1].sort, client_of.compact.sort
  end

  def test_find_with_nil_inside_set_passed_for_attribute
    client_of = Company.scoped(
      :where => { :client_of => [nil] },
      :order => 'client_of DESC'
    ).map { |x| x.client_of }

    assert_equal [], client_of.compact
  end

  def test_with_limiting_with_custom_select
    posts = Post.references(:authors).scoped(
      :includes => :author, :select => ' posts.*, authors.id as "author_id"',
      :limit => 3, :order => 'posts.id'
    ).all
    assert_equal 3, posts.size
    assert_equal [0, 1, 1], posts.map(&:author_id).sort
  end

  def test_find_one_message_with_custom_primary_key
    Toy.primary_key = :name
    begin
      Toy.find 'Hello World!'
    rescue ActiveRecord::RecordNotFound => e
      assert_equal 'Couldn\'t find Toy with name=Hello World!', e.message
    end
  end

  def test_finder_with_offset_string
    assert_nothing_raised(ActiveRecord::StatementInvalid) { Topic.scoped(:offset => "3").all }
  end

  protected
    def bind(statement, *vars)
      if vars.first.is_a?(Hash)
        ActiveRecord::Base.send(:replace_named_bind_variables, statement, vars.first)
      else
        ActiveRecord::Base.send(:replace_bind_variables, statement, vars)
      end
    end

    def with_env_tz(new_tz = 'US/Eastern')
      old_tz, ENV['TZ'] = ENV['TZ'], new_tz
      yield
    ensure
      old_tz ? ENV['TZ'] = old_tz : ENV.delete('TZ')
    end

    def with_active_record_default_timezone(zone)
      old_zone, ActiveRecord::Base.default_timezone = ActiveRecord::Base.default_timezone, zone
      yield
    ensure
      ActiveRecord::Base.default_timezone = old_zone
    end
end