aboutsummaryrefslogtreecommitdiffstats
path: root/activerecord/test/cases/transaction_callbacks_test.rb
blob: 391bbe88773975973dbce2c6bffe5ee1c95c503d (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
require "cases/helper"
require "models/owner"
require "models/pet"
require "models/topic"

class TransactionCallbacksTest < ActiveRecord::TestCase
  fixtures :topics, :owners, :pets

  class ReplyWithCallbacks < ActiveRecord::Base
    self.table_name = :topics

    belongs_to :topic, foreign_key: "parent_id"

    validates_presence_of :content

    after_commit :do_after_commit, on: :create

    attr_accessor :save_on_after_create
    after_create do
      save! if save_on_after_create
    end

    def history
      @history ||= []
    end

    def do_after_commit
      history << :commit_on_create
    end
  end

  class TopicWithCallbacks < ActiveRecord::Base
    self.table_name = :topics

    has_many :replies, class_name: "ReplyWithCallbacks", foreign_key: "parent_id"

    before_commit { |record| record.do_before_commit(nil) }
    after_commit { |record| record.do_after_commit(nil) }
    after_create_commit { |record| record.do_after_commit(:create) }
    after_update_commit { |record| record.do_after_commit(:update) }
    after_destroy_commit { |record| record.do_after_commit(:destroy) }
    after_rollback { |record| record.do_after_rollback(nil) }
    after_rollback(on: :create) { |record| record.do_after_rollback(:create) }
    after_rollback(on: :update) { |record| record.do_after_rollback(:update) }
    after_rollback(on: :destroy) { |record| record.do_after_rollback(:destroy) }

    def history
      @history ||= []
    end

    def before_commit_block(on = nil, &block)
      @before_commit ||= {}
      @before_commit[on] ||= []
      @before_commit[on] << block
    end

    def after_commit_block(on = nil, &block)
      @after_commit ||= {}
      @after_commit[on] ||= []
      @after_commit[on] << block
    end

    def after_rollback_block(on = nil, &block)
      @after_rollback ||= {}
      @after_rollback[on] ||= []
      @after_rollback[on] << block
    end

    def do_before_commit(on)
      blocks = @before_commit[on] if defined?(@before_commit)
      blocks.each { |b| b.call(self) } if blocks
    end

    def do_after_commit(on)
      blocks = @after_commit[on] if defined?(@after_commit)
      blocks.each { |b| b.call(self) } if blocks
    end

    def do_after_rollback(on)
      blocks = @after_rollback[on] if defined?(@after_rollback)
      blocks.each { |b| b.call(self) } if blocks
    end
  end

  def setup
    @first = TopicWithCallbacks.find(1)
  end

  # FIXME: Test behavior, not implementation.
  def test_before_commit_exception_should_pop_transaction_stack
    @first.before_commit_block { raise "better pop this txn from the stack!" }

    original_txn = @first.class.connection.current_transaction

    begin
      @first.save!
      fail
    rescue
      assert_equal original_txn, @first.class.connection.current_transaction
    end
  end

  def test_call_after_commit_after_transaction_commits
    @first.after_commit_block { |r| r.history << :after_commit }
    @first.after_rollback_block { |r| r.history << :after_rollback }

    @first.save!
    assert_equal [:after_commit], @first.history
  end

  def test_only_call_after_commit_on_update_after_transaction_commits_for_existing_record
    add_transaction_execution_blocks @first

    @first.save!
    assert_equal [:commit_on_update], @first.history
  end

  def test_only_call_after_commit_on_destroy_after_transaction_commits_for_destroyed_record
    add_transaction_execution_blocks @first

    @first.destroy
    assert_equal [:commit_on_destroy], @first.history
  end

  def test_only_call_after_commit_on_create_after_transaction_commits_for_new_record
    new_record = TopicWithCallbacks.new(title: "New topic", written_on: Date.today)
    add_transaction_execution_blocks new_record

    new_record.save!
    assert_equal [:commit_on_create], new_record.history
  end

  def test_only_call_after_commit_on_create_after_transaction_commits_for_new_record_if_create_succeeds_creating_through_association
    topic = TopicWithCallbacks.create!(title: "New topic", written_on: Date.today)
    reply = topic.replies.create

    assert_equal [], reply.history
  end

  def test_only_call_after_commit_on_create_and_doesnt_leaky
    r = ReplyWithCallbacks.new(content: "foo")
    r.save_on_after_create = true
    r.save!
    r.content = "bar"
    r.save!
    r.save!
    assert_equal [:commit_on_create], r.history
  end

  def test_only_call_after_commit_on_update_after_transaction_commits_for_existing_record_on_touch
    add_transaction_execution_blocks @first

    @first.touch
    assert_equal [:commit_on_update], @first.history
  end

  def test_only_call_after_commit_on_top_level_transactions
    @first.after_commit_block { |r| r.history << :after_commit }
    assert @first.history.empty?

    @first.transaction do
      @first.transaction(requires_new: true) do
        @first.touch
      end
      assert @first.history.empty?
    end
    assert_equal [:after_commit], @first.history
  end

  def test_call_after_rollback_after_transaction_rollsback
    @first.after_commit_block { |r| r.history << :after_commit }
    @first.after_rollback_block { |r| r.history << :after_rollback }

    Topic.transaction do
      @first.save!
      raise ActiveRecord::Rollback
    end

    assert_equal [:after_rollback], @first.history
  end

  def test_only_call_after_rollback_on_update_after_transaction_rollsback_for_existing_record
    add_transaction_execution_blocks @first

    Topic.transaction do
      @first.save!
      raise ActiveRecord::Rollback
    end

    assert_equal [:rollback_on_update], @first.history
  end

  def test_only_call_after_rollback_on_update_after_transaction_rollsback_for_existing_record_on_touch
    add_transaction_execution_blocks @first

    Topic.transaction do
      @first.touch
      raise ActiveRecord::Rollback
    end

    assert_equal [:rollback_on_update], @first.history
  end

  def test_only_call_after_rollback_on_destroy_after_transaction_rollsback_for_destroyed_record
    add_transaction_execution_blocks @first

    Topic.transaction do
      @first.destroy
      raise ActiveRecord::Rollback
    end

    assert_equal [:rollback_on_destroy], @first.history
  end

  def test_only_call_after_rollback_on_create_after_transaction_rollsback_for_new_record
    new_record = TopicWithCallbacks.new(title: "New topic", written_on: Date.today)
    add_transaction_execution_blocks new_record

    Topic.transaction do
      new_record.save!
      raise ActiveRecord::Rollback
    end

    assert_equal [:rollback_on_create], new_record.history
  end

  def test_call_after_rollback_when_commit_fails
    @first.after_commit_block { |r| r.history << :after_commit }
    @first.after_rollback_block { |r| r.history << :after_rollback }

    assert_raises RuntimeError do
      @first.transaction do
        tx = @first.class.connection.transaction_manager.current_transaction
        def tx.commit
          raise
        end

        @first.save
      end
    end

    assert_equal [:after_rollback], @first.history
  end

  def test_only_call_after_rollback_on_records_rolled_back_to_a_savepoint
    def @first.rollbacks(i = 0); @rollbacks ||= 0; @rollbacks += i if i; end
    def @first.commits(i = 0); @commits ||= 0; @commits += i if i; end
    @first.after_rollback_block { |r| r.rollbacks(1) }
    @first.after_commit_block { |r| r.commits(1) }

    second = TopicWithCallbacks.find(3)
    def second.rollbacks(i = 0); @rollbacks ||= 0; @rollbacks += i if i; end
    def second.commits(i = 0); @commits ||= 0; @commits += i if i; end
    second.after_rollback_block { |r| r.rollbacks(1) }
    second.after_commit_block { |r| r.commits(1) }

    Topic.transaction do
      @first.save!
      Topic.transaction(requires_new: true) do
        second.save!
        raise ActiveRecord::Rollback
      end
    end

    assert_equal 1, @first.commits
    assert_equal 0, @first.rollbacks
    assert_equal 0, second.commits
    assert_equal 1, second.rollbacks
  end

  def test_only_call_after_rollback_on_records_rolled_back_to_a_savepoint_when_release_savepoint_fails
    def @first.rollbacks(i = 0); @rollbacks ||= 0; @rollbacks += i if i; end
    def @first.commits(i = 0); @commits ||= 0; @commits += i if i; end

    @first.after_rollback_block { |r| r.rollbacks(1) }
    @first.after_commit_block { |r| r.commits(1) }

    Topic.transaction do
      @first.save
      Topic.transaction(requires_new: true) do
        @first.save!
        raise ActiveRecord::Rollback
      end
      Topic.transaction(requires_new: true) do
        @first.save!
        raise ActiveRecord::Rollback
      end
    end

    assert_equal 1, @first.commits
    assert_equal 2, @first.rollbacks
  end

  def test_after_commit_callback_should_not_swallow_errors
    @first.after_commit_block { fail "boom" }
    assert_raises(RuntimeError) do
      Topic.transaction do
        @first.save!
      end
    end
  end

  def test_after_commit_callback_when_raise_should_not_restore_state
    first = TopicWithCallbacks.new
    second = TopicWithCallbacks.new
    first.after_commit_block { fail "boom" }
    second.after_commit_block { fail "boom" }

    begin
      Topic.transaction do
        first.save!
        assert_not_nil first.id
        second.save!
        assert_not_nil second.id
      end
    rescue
    end
    assert_not_nil first.id
    assert_not_nil second.id
    assert first.reload
  end

  def test_after_rollback_callback_should_not_swallow_errors_when_set_to_raise
    error_class = Class.new(StandardError)
    @first.after_rollback_block { raise error_class }
    assert_raises(error_class) do
      Topic.transaction do
        @first.save!
        raise ActiveRecord::Rollback
      end
    end
  end

  def test_after_rollback_callback_when_raise_should_restore_state
    error_class = Class.new(StandardError)

    first = TopicWithCallbacks.new
    second = TopicWithCallbacks.new
    first.after_rollback_block { raise error_class }
    second.after_rollback_block { raise error_class }

    begin
      Topic.transaction do
        first.save!
        assert_not_nil first.id
        second.save!
        assert_not_nil second.id
        raise ActiveRecord::Rollback
      end
    rescue error_class
    end
    assert_nil first.id
    assert_nil second.id
  end

  def test_after_rollback_callbacks_should_validate_on_condition
    assert_raise(ArgumentError) { Topic.after_rollback(on: :save) }
    e = assert_raise(ArgumentError) { Topic.after_rollback(on: "create") }
    assert_match(/:on conditions for after_commit and after_rollback callbacks have to be one of \[:create, :destroy, :update\]/, e.message)
  end

  def test_after_commit_callbacks_should_validate_on_condition
    assert_raise(ArgumentError) { Topic.after_commit(on: :save) }
    e = assert_raise(ArgumentError) { Topic.after_commit(on: "create") }
    assert_match(/:on conditions for after_commit and after_rollback callbacks have to be one of \[:create, :destroy, :update\]/, e.message)
  end

  def test_saving_a_record_with_a_belongs_to_that_specifies_touching_the_parent_should_call_callbacks_on_the_parent_object
    pet   = Pet.first
    owner = pet.owner
    flag = false

    owner.on_after_commit do
      flag = true
    end

    pet.name = "Fluffy the Third"
    pet.save

    assert flag
  end

  private

    def add_transaction_execution_blocks(record)
      record.after_commit_block(:create) { |r| r.history << :commit_on_create }
      record.after_commit_block(:update) { |r| r.history << :commit_on_update }
      record.after_commit_block(:destroy) { |r| r.history << :commit_on_destroy }
      record.after_rollback_block(:create) { |r| r.history << :rollback_on_create }
      record.after_rollback_block(:update) { |r| r.history << :rollback_on_update }
      record.after_rollback_block(:destroy) { |r| r.history << :rollback_on_destroy }
    end
end

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

  class TopicWithCallbacksOnMultipleActions < ActiveRecord::Base
    self.table_name = :topics

    after_commit(on: [:create, :destroy]) { |record| record.history << :create_and_destroy }
    after_commit(on: [:create, :update]) { |record| record.history << :create_and_update }
    after_commit(on: [:update, :destroy]) { |record| record.history << :update_and_destroy }

    before_commit(if: :save_before_commit_history) { |record| record.history << :before_commit }
    before_commit(if: :update_title) { |record| record.update(title: "before commit title") }

    def clear_history
      @history = []
    end

    def history
      @history ||= []
    end

    attr_accessor :save_before_commit_history, :update_title
  end

  def test_after_commit_on_multiple_actions
    topic = TopicWithCallbacksOnMultipleActions.new
    topic.save
    assert_equal [:create_and_update, :create_and_destroy], topic.history

    topic.clear_history
    topic.approved = true
    topic.save
    assert_equal [:update_and_destroy, :create_and_update], topic.history

    topic.clear_history
    topic.destroy
    assert_equal [:update_and_destroy, :create_and_destroy], topic.history
  end

  def test_before_commit_actions
    topic = TopicWithCallbacksOnMultipleActions.new
    topic.save_before_commit_history = true
    topic.save

    assert_equal [:before_commit, :create_and_update, :create_and_destroy], topic.history
  end

  def test_before_commit_update_in_same_transaction
    topic = TopicWithCallbacksOnMultipleActions.new
    topic.update_title = true
    topic.save

    assert_equal "before commit title", topic.title
    assert_equal "before commit title", topic.reload.title
  end
end

class CallbacksOnDestroyUpdateActionRaceTest < ActiveRecord::TestCase
  class TopicWithHistory < ActiveRecord::Base
    self.table_name = :topics

    def self.clear_history
      @@history = []
    end

    def self.history
      @@history ||= []
    end
  end

  class TopicWithCallbacksOnDestroy < TopicWithHistory
    after_commit(on: :destroy) { |record| record.class.history << :destroy }
  end

  class TopicWithCallbacksOnUpdate < TopicWithHistory
    after_commit(on: :update) { |record| record.class.history << :update }
  end

  def test_trigger_once_on_multiple_deletions
    TopicWithCallbacksOnDestroy.clear_history
    topic = TopicWithCallbacksOnDestroy.new
    topic.save
    topic_clone = TopicWithCallbacksOnDestroy.find(topic.id)
    topic.destroy
    topic_clone.destroy

    assert_equal [:destroy], TopicWithCallbacksOnDestroy.history
  end

  def test_trigger_on_update_where_row_was_deleted
    TopicWithCallbacksOnUpdate.clear_history
    topic = TopicWithCallbacksOnUpdate.new
    topic.save
    topic_clone = TopicWithCallbacksOnUpdate.find(topic.id)
    topic.destroy
    topic_clone.author_name = "Test Author"
    topic_clone.save

    assert_equal [], TopicWithCallbacksOnUpdate.history
  end
end

class TransactionEnrollmentCallbacksTest < ActiveRecord::TestCase
  class TopicWithoutTransactionalEnrollmentCallbacks < ActiveRecord::Base
    self.table_name = :topics

    before_commit_without_transaction_enrollment { |r| r.history << :before_commit }
    after_commit_without_transaction_enrollment { |r| r.history << :after_commit }
    after_rollback_without_transaction_enrollment { |r| r.history << :rollback }

    def history
      @history ||= []
    end
  end

  def setup
    @topic = TopicWithoutTransactionalEnrollmentCallbacks.create!
  end

  def test_commit_does_not_run_transactions_callbacks_without_enrollment
    @topic.transaction do
      @topic.content = "foo"
      @topic.save!
    end
    assert @topic.history.empty?
  end

  def test_commit_run_transactions_callbacks_with_explicit_enrollment
    @topic.transaction do
      2.times do
        @topic.content = "foo"
        @topic.save!
      end
      @topic.class.connection.add_transaction_record(@topic)
    end
    assert_equal [:before_commit, :after_commit], @topic.history
  end

  def test_rollback_does_not_run_transactions_callbacks_without_enrollment
    @topic.transaction do
      @topic.content = "foo"
      @topic.save!
      raise ActiveRecord::Rollback
    end
    assert @topic.history.empty?
  end

  def test_rollback_run_transactions_callbacks_with_explicit_enrollment
    @topic.transaction do
      2.times do
        @topic.content = "foo"
        @topic.save!
      end
      @topic.class.connection.add_transaction_record(@topic)
      raise ActiveRecord::Rollback
    end
    assert_equal [:rollback], @topic.history
  end
end