File: app_generator_test.rb

package info (click to toggle)
rails 2:6.0.3.5+dfsg-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye, sid
  • size: 69,996 kB
  • sloc: ruby: 270,788; javascript: 18,996; yacc: 46; sql: 43; makefile: 28; sh: 18
file content (1161 lines) | stat: -rw-r--r-- 37,466 bytes parent folder | download | duplicates (2)
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
# frozen_string_literal: true

require "generators/generators_test_helper"
require "rails/generators/rails/app/app_generator"
require "generators/shared_generator_tests"

DEFAULT_APP_FILES = %w(
  .gitignore
  .ruby-version
  README.md
  Gemfile
  Rakefile
  config.ru
  app/assets/config/manifest.js
  app/assets/images
  app/javascript
  app/javascript/channels
  app/javascript/channels/consumer.js
  app/javascript/channels/index.js
  app/javascript/packs/application.js
  app/assets/stylesheets
  app/assets/stylesheets/application.css
  app/channels/application_cable/channel.rb
  app/channels/application_cable/connection.rb
  app/controllers
  app/controllers/application_controller.rb
  app/controllers/concerns
  app/helpers
  app/helpers/application_helper.rb
  app/mailers
  app/mailers/application_mailer.rb
  app/models
  app/models/application_record.rb
  app/models/concerns
  app/jobs
  app/jobs/application_job.rb
  app/views/layouts
  app/views/layouts/application.html.erb
  app/views/layouts/mailer.html.erb
  app/views/layouts/mailer.text.erb
  bin/rails
  bin/rake
  bin/setup
  /bin/yarnpkg
  config/application.rb
  config/boot.rb
  config/cable.yml
  config/environment.rb
  config/environments
  config/environments/development.rb
  config/environments/production.rb
  config/environments/test.rb
  config/initializers
  config/initializers/application_controller_renderer.rb
  config/initializers/assets.rb
  config/initializers/backtrace_silencers.rb
  config/initializers/cookies_serializer.rb
  config/initializers/content_security_policy.rb
  config/initializers/filter_parameter_logging.rb
  config/initializers/inflections.rb
  config/initializers/mime_types.rb
  config/initializers/wrap_parameters.rb
  config/locales
  config/locales/en.yml
  config/puma.rb
  config/routes.rb
  config/credentials.yml.enc
  config/spring.rb
  config/storage.yml
  db
  db/seeds.rb
  lib
  lib/tasks
  lib/assets
  log
  package.json
  public
  storage
  test/application_system_test_case.rb
  test/test_helper.rb
  test/fixtures
  test/fixtures/files
  test/channels/application_cable/connection_test.rb
  test/controllers
  test/models
  test/helpers
  test/mailers
  test/integration
  test/system
  vendor
  tmp
  tmp/cache
  tmp/cache/assets
  tmp/storage
)

class AppGeneratorTest < Rails::Generators::TestCase
  include GeneratorsTestHelper
  arguments [destination_root]

  # brings setup, teardown, and some tests
  include SharedGeneratorTests

  def default_files
    ::DEFAULT_APP_FILES
  end

  def test_skip_bundle
    assert_not_called(generator([destination_root], skip_bundle: true, skip_webpack_install: true), :bundle_command) do
      quietly { generator.invoke_all }
      # skip_bundle is only about running bundle install, ensure the Gemfile is still
      # generated.
      assert_file "Gemfile"
    end
  end

  def test_assets
    run_generator

    assert_file("app/views/layouts/application.html.erb", /stylesheet_link_tag\s+'application', media: 'all', 'data-turbolinks-track': 'reload'/)
    assert_file("app/views/layouts/application.html.erb", /javascript_pack_tag\s+'application', 'data-turbolinks-track': 'reload'/)
    assert_file("app/assets/stylesheets/application.css")
    assert_file("app/javascript/packs/application.js")
  end

  def test_application_job_file_present
    run_generator
    assert_file("app/jobs/application_job.rb")
  end

  def test_invalid_application_name_raises_an_error
    content = capture(:stderr) { run_generator [File.join(destination_root, "43-things")] }
    assert_equal "Invalid application name 43-things. Please give a name which does not start with numbers.\n", content
  end

  def test_invalid_application_name_is_fixed
    run_generator [File.join(destination_root, "things-43")]
    assert_file "things-43/config/environment.rb", /Rails\.application\.initialize!/
    assert_file "things-43/config/application.rb", /^module Things43$/
  end

  def test_application_new_exits_with_non_zero_code_on_invalid_application_name
    quietly { system "rails new test --no-rc" }
    assert_equal false, $?.success?
  end

  def test_application_new_exits_with_message_and_non_zero_code_when_generating_inside_existing_rails_directory
    app_root = File.join(destination_root, "myfirstapp")
    run_generator [app_root]
    output = nil
    Dir.chdir(app_root) do
      output = `rails new mysecondapp`
    end
    assert_equal "Can't initialize a new Rails application within the directory of another, please change to a non-Rails directory first.\nType 'rails' for help.\n", output
    assert_equal false, $?.success?
  end

  def test_application_new_show_help_message_inside_existing_rails_directory
    app_root = File.join(destination_root, "myfirstapp")
    run_generator [app_root]
    output = Dir.chdir(app_root) do
      `rails new --help`
    end
    assert_match(/rails new APP_PATH \[options\]/, output)
    assert_equal true, $?.success?
  end

  def test_application_name_is_detected_if_it_exists_and_app_folder_renamed
    app_root       = File.join(destination_root, "myapp")
    app_moved_root = File.join(destination_root, "myapp_moved")

    run_generator [app_root]

    stub_rails_application(app_moved_root) do
      Rails.application.stub(:is_a?, -> *args { Rails::Application }) do
        FileUtils.mv(app_root, app_moved_root)

        # make sure we are in correct dir
        FileUtils.cd(app_moved_root)

        generator = Rails::Generators::AppGenerator.new ["rails"], [],
                                                                   destination_root: app_moved_root, shell: @shell
        generator.send(:app_const)
        quietly { generator.send(:update_config_files) }
        assert_file "myapp_moved/config/environment.rb", /Rails\.application\.initialize!/
      end
    end
  end

  def test_app_update_generates_correct_session_key
    app_root = File.join(destination_root, "myapp")
    run_generator [app_root]

    stub_rails_application(app_root) do
      generator = Rails::Generators::AppGenerator.new ["rails"], [], destination_root: app_root, shell: @shell
      generator.send(:app_const)
      quietly { generator.send(:update_config_files) }
    end
  end

  def test_new_application_use_json_serializer
    run_generator

    assert_file("config/initializers/cookies_serializer.rb", /Rails\.application\.config\.action_dispatch\.cookies_serializer = :json/)
  end

  def test_new_application_not_include_api_initializers
    run_generator

    assert_no_file "config/initializers/cors.rb"
  end

  def test_new_application_doesnt_need_defaults
    run_generator
    assert_no_file "config/initializers/new_framework_defaults_6_0.rb"
  end

  def test_new_application_load_defaults
    app_root = File.join(destination_root, "myfirstapp")
    run_generator [app_root]

    output = nil

    assert_file "#{app_root}/config/application.rb", /\s+config\.load_defaults #{Rails::VERSION::STRING.to_f}/

    Dir.chdir(app_root) do
      output = `SKIP_REQUIRE_WEBPACKER=true ./bin/rails r "puts Rails.application.config.assets.unknown_asset_fallback"`
    end

    assert_equal "false\n", output
  end

  def test_csp_initializer_include_connect_src_example
    run_generator

    assert_file "config/initializers/content_security_policy.rb" do |content|
      assert_match(/#   policy\.connect_src/, content)
    end
  end

  def test_app_update_keep_the_cookie_serializer_if_it_is_already_configured
    app_root = File.join(destination_root, "myapp")
    run_generator [app_root]

    stub_rails_application(app_root) do
      generator = Rails::Generators::AppGenerator.new ["rails"], [], destination_root: app_root, shell: @shell
      generator.send(:app_const)
      quietly { generator.send(:update_config_files) }
      assert_file("#{app_root}/config/initializers/cookies_serializer.rb", /Rails\.application\.config\.action_dispatch\.cookies_serializer = :json/)
    end
  end

  def test_app_update_set_the_cookie_serializer_to_marshal_if_it_is_not_already_configured
    app_root = File.join(destination_root, "myapp")
    run_generator [app_root]

    FileUtils.rm("#{app_root}/config/initializers/cookies_serializer.rb")

    stub_rails_application(app_root) do
      generator = Rails::Generators::AppGenerator.new ["rails"], [], destination_root: app_root, shell: @shell
      generator.send(:app_const)
      quietly { generator.send(:update_config_files) }
      assert_file("#{app_root}/config/initializers/cookies_serializer.rb",
                  /Valid options are :json, :marshal, and :hybrid\.\nRails\.application\.config\.action_dispatch\.cookies_serializer = :marshal/)
    end
  end

  def test_app_update_create_new_framework_defaults
    app_root = File.join(destination_root, "myapp")
    run_generator [app_root]

    assert_no_file "#{app_root}/config/initializers/new_framework_defaults_6_0.rb"

    stub_rails_application(app_root) do
      generator = Rails::Generators::AppGenerator.new ["rails"], { update: true }, { destination_root: app_root, shell: @shell }
      generator.send(:app_const)
      quietly { generator.send(:update_config_files) }

      assert_file "#{app_root}/config/initializers/new_framework_defaults_6_0.rb"
    end
  end

  def test_app_update_does_not_create_rack_cors
    app_root = File.join(destination_root, "myapp")
    run_generator [app_root]

    stub_rails_application(app_root) do
      generator = Rails::Generators::AppGenerator.new ["rails"], [], destination_root: app_root, shell: @shell
      generator.send(:app_const)
      quietly { generator.send(:update_config_files) }
      assert_no_file "#{app_root}/config/initializers/cors.rb"
    end
  end

  def test_app_update_does_not_remove_rack_cors_if_already_present
    app_root = File.join(destination_root, "myapp")
    run_generator [app_root]

    FileUtils.touch("#{app_root}/config/initializers/cors.rb")

    stub_rails_application(app_root) do
      generator = Rails::Generators::AppGenerator.new ["rails"], [], destination_root: app_root, shell: @shell
      generator.send(:app_const)
      quietly { generator.send(:update_config_files) }
      assert_file "#{app_root}/config/initializers/cors.rb"
    end
  end

  def test_app_update_does_not_generate_yarn_contents_when_bin_yarn_is_not_used
    app_root = File.join(destination_root, "myapp")
    run_generator [app_root, "--skip-javascript"]

    stub_rails_application(app_root) do
      generator = Rails::Generators::AppGenerator.new ["rails"], { update: true, skip_javascript: true }, { destination_root: app_root, shell: @shell }
      generator.send(:app_const)
      quietly { generator.send(:update_bin_files) }

      assert_no_file "#{app_root}/bin/yarnpkg"

      assert_file "#{app_root}/bin/setup" do |content|
        assert_no_match(/system\('bin\/yarnpkg'\)/, content)
      end
    end
  end

  def test_app_update_does_not_generate_assets_initializer_when_skip_sprockets_is_given
    app_root = File.join(destination_root, "myapp")
    run_generator [app_root, "--skip-sprockets"]

    stub_rails_application(app_root) do
      generator = Rails::Generators::AppGenerator.new ["rails"], { update: true, skip_sprockets: true }, { destination_root: app_root, shell: @shell }
      generator.send(:app_const)
      quietly { generator.send(:update_config_files) }

      assert_no_file "#{app_root}/config/initializers/assets.rb"
    end
  end

  def test_app_update_does_not_generate_spring_contents_when_skip_spring_is_given
    app_root = File.join(destination_root, "myapp")
    run_generator [app_root, "--skip-spring"]

    stub_rails_application(app_root) do
      generator = Rails::Generators::AppGenerator.new ["rails"], { update: true, skip_spring: true }, { destination_root: app_root, shell: @shell }
      generator.send(:app_const)
      quietly { generator.send(:update_config_files) }

      assert_no_file "#{app_root}/config/spring.rb"
    end
  end

  def test_app_update_does_not_generate_action_cable_contents_when_skip_action_cable_is_given
    app_root = File.join(destination_root, "myapp")
    run_generator [app_root, "--skip-action-cable"]

    stub_rails_application(app_root) do
      generator = Rails::Generators::AppGenerator.new ["rails"], { update: true, skip_action_cable: true }, { destination_root: app_root, shell: @shell }
      generator.send(:app_const)
      quietly { generator.send(:update_config_files) }

      assert_no_file "#{app_root}/config/cable.yml"
      assert_file "#{app_root}/config/environments/production.rb" do |content|
        assert_no_match(/config\.action_cable/, content)
      end
      assert_no_file "#{app_root}/test/channels/application_cable/connection_test.rb"
    end
  end

  def test_app_update_does_not_generate_bootsnap_contents_when_skip_bootsnap_is_given
    app_root = File.join(destination_root, "myapp")
    run_generator [app_root, "--skip-bootsnap"]

    stub_rails_application(app_root) do
      generator = Rails::Generators::AppGenerator.new ["rails"], { update: true, skip_bootsnap: true }, { destination_root: app_root, shell: @shell }
      generator.send(:app_const)
      quietly { generator.send(:update_config_files) }

      assert_file "#{app_root}/config/boot.rb" do |content|
        assert_no_match(/require 'bootsnap\/setup'/, content)
      end
    end
  end

  def test_gem_for_active_storage
    run_generator
    assert_file "Gemfile", /^# gem 'image_processing'/
  end

  def test_gem_for_active_storage_when_skip_active_storage_is_given
    run_generator [destination_root, "--skip-active-storage"]

    assert_no_gem "image_processing"
  end

  def test_app_update_does_not_generate_active_storage_contents_when_skip_active_storage_is_given
    app_root = File.join(destination_root, "myapp")
    run_generator [app_root, "--skip-active-storage"]

    stub_rails_application(app_root) do
      generator = Rails::Generators::AppGenerator.new ["rails"], { update: true, skip_active_storage: true }, { destination_root: app_root, shell: @shell }
      generator.send(:app_const)
      quietly { generator.send(:update_config_files) }

      assert_file "#{app_root}/config/environments/development.rb" do |content|
        assert_no_match(/config\.active_storage/, content)
      end

      assert_file "#{app_root}/config/environments/production.rb" do |content|
        assert_no_match(/config\.active_storage/, content)
      end

      assert_file "#{app_root}/config/environments/test.rb" do |content|
        assert_no_match(/config\.active_storage/, content)
      end

      assert_no_file "#{app_root}/config/storage.yml"
    end
  end

  def test_app_update_does_not_generate_active_storage_contents_when_skip_active_record_is_given
    app_root = File.join(destination_root, "myapp")
    run_generator [app_root, "--skip-active-record"]

    stub_rails_application(app_root) do
      generator = Rails::Generators::AppGenerator.new ["rails"], { update: true, skip_active_record: true }, { destination_root: app_root, shell: @shell }
      generator.send(:app_const)
      quietly { generator.send(:update_config_files) }

      assert_file "#{app_root}/config/environments/development.rb" do |content|
        assert_no_match(/config\.active_storage/, content)
      end

      assert_file "#{app_root}/config/environments/production.rb" do |content|
        assert_no_match(/config\.active_storage/, content)
      end

      assert_file "#{app_root}/config/environments/test.rb" do |content|
        assert_no_match(/config\.active_storage/, content)
      end

      assert_no_file "#{app_root}/config/storage.yml"
    end
  end

  def test_generator_skips_action_mailbox_when_skip_action_mailbox_is_given
    run_generator [destination_root, "--skip-action-mailbox"]
    assert_file "#{application_path}/config/application.rb", /#\s+require\s+["']action_mailbox\/engine["']/
  end

  def test_generator_skips_action_mailbox_when_skip_active_record_is_given
    run_generator [destination_root, "--skip-active-record"]
    assert_file "#{application_path}/config/application.rb", /#\s+require\s+["']action_mailbox\/engine["']/
  end

  def test_generator_skips_action_mailbox_when_skip_active_storage_is_given
    run_generator [destination_root, "--skip-active-storage"]
    assert_file "#{application_path}/config/application.rb", /#\s+require\s+["']action_mailbox\/engine["']/
  end

  def test_generator_skips_action_text_when_skip_action_text_is_given
    run_generator [destination_root, "--skip-action-text"]
    assert_file "#{application_path}/config/application.rb", /#\s+require\s+["']action_text\/engine["']/
  end

  def test_generator_skips_action_text_when_skip_active_record_is_given
    run_generator [destination_root, "--skip-active-record"]
    assert_file "#{application_path}/config/application.rb", /#\s+require\s+["']action_text\/engine["']/
  end

  def test_generator_skips_action_text_when_skip_active_storage_is_given
    run_generator [destination_root, "--skip-active-storage"]
    assert_file "#{application_path}/config/application.rb", /#\s+require\s+["']action_text\/engine["']/
  end

=begin
  def test_app_update_does_not_change_config_target_version
    app_root = File.join(destination_root, "myapp")
    run_generator [app_root, "--skip-spring"]

    FileUtils.cd(app_root) do
      config = "config/application.rb"
      content = File.read(config)
      File.write(config, content.gsub(/config\.load_defaults #{Rails::VERSION::STRING.to_f}/, "config.load_defaults 5.1"))
      quietly { system("bin/rails app:update") }
    end

    assert_file "#{app_root}/config/application.rb", /\s+config\.load_defaults 5\.1/
  end
=end

  def test_app_update_does_not_change_app_name_when_app_name_is_hyphenated_name
    app_root = File.join(destination_root, "hyphenated-app")
    run_generator [app_root, "-d", "postgresql"]

    assert_file "#{app_root}/config/database.yml" do |content|
      assert_match(/hyphenated_app_development/, content)
      assert_no_match(/hyphenated-app_development/, content)
    end

    assert_file "#{app_root}/config/cable.yml" do |content|
      assert_match(/hyphenated_app/, content)
      assert_no_match(/hyphenated-app/, content)
    end

    stub_rails_application(app_root) do
      generator = Rails::Generators::AppGenerator.new ["rails"], { update: true }, { destination_root: app_root, shell: @shell }
      generator.send(:app_const)
      quietly { generator.send(:update_config_files) }

      assert_file "#{app_root}/config/cable.yml" do |content|
        assert_match(/hyphenated_app/, content)
        assert_no_match(/hyphenated-app/, content)
      end
    end
  end

  def test_application_names_are_not_singularized
    run_generator [File.join(destination_root, "hats")]
    assert_file "hats/config/environment.rb", /Rails\.application\.initialize!/
  end

  def test_gemfile_has_no_whitespace_errors
    run_generator
    absolute = File.expand_path("Gemfile", destination_root)
    File.open(absolute, "r") do |f|
      f.each_line do |line|
        assert_no_match %r{/^[ \t]+$/}, line
      end
    end
  end

  def test_config_database_is_added_by_default
    run_generator
    assert_file "config/database.yml", /sqlite3/
    if defined?(JRUBY_VERSION)
      assert_gem "activerecord-jdbcsqlite3-adapter"
    else
      assert_gem "sqlite3", "'~> 1.4'"
    end
  end

  def test_config_mysql_database
    run_generator([destination_root, "-d", "mysql"])
    assert_file "config/database.yml", /mysql/
    if defined?(JRUBY_VERSION)
      assert_gem "activerecord-jdbcmysql-adapter"
    else
      assert_gem "mysql2", "'>= 0.4.4'"
    end
  end

  def test_config_database_app_name_with_period
    run_generator [File.join(destination_root, "common.usage.com"), "-d", "postgresql"]
    assert_file "common.usage.com/config/database.yml", /common_usage_com/
  end

  def test_config_postgresql_database
    run_generator([destination_root, "-d", "postgresql"])
    assert_file "config/database.yml", /postgresql/
    if defined?(JRUBY_VERSION)
      assert_gem "activerecord-jdbcpostgresql-adapter"
    else
      assert_gem "pg", "'>= 0.18', '< 2.0'"
    end
  end

  def test_config_jdbcmysql_database
    run_generator([destination_root, "-d", "jdbcmysql"])
    assert_file "config/database.yml", /mysql/
    assert_gem "activerecord-jdbcmysql-adapter"
  end

  def test_config_jdbcsqlite3_database
    run_generator([destination_root, "-d", "jdbcsqlite3"])
    assert_file "config/database.yml", /sqlite3/
    assert_gem "activerecord-jdbcsqlite3-adapter"
  end

  def test_config_jdbcpostgresql_database
    run_generator([destination_root, "-d", "jdbcpostgresql"])
    assert_file "config/database.yml", /postgresql/
    assert_gem "activerecord-jdbcpostgresql-adapter"
  end

  def test_config_jdbc_database
    run_generator([destination_root, "-d", "jdbc"])
    assert_file "config/database.yml", /jdbc/
    assert_file "config/database.yml", /mssql/
    assert_gem "activerecord-jdbc-adapter"
  end

  if defined?(JRUBY_VERSION)
    def test_config_jdbc_database_when_no_option_given
      run_generator
      assert_file "config/database.yml", /sqlite3/
      assert_gem "activerecord-jdbcsqlite3-adapter"
    end
  end

  def test_generator_defaults_to_puma_version
    run_generator [destination_root]
    assert_gem "puma", "'~> 4.1'"
  end

  def test_generator_if_skip_puma_is_given
    run_generator [destination_root, "--skip-puma"]
    assert_no_file "config/puma.rb"
    assert_no_gem "puma"
  end

  def test_generator_has_assets_gems
    run_generator

    assert_gem "sass-rails"
  end

  def test_action_cable_redis_gems
    run_generator
    assert_file "Gemfile", /^# gem 'redis'/
  end

  def test_generator_if_skip_test_is_given
    run_generator [destination_root, "--skip-test"]

    assert_file "config/application.rb", /#\s+require\s+["']rails\/test_unit\/railtie["']/

    assert_no_gem "capybara"
    assert_no_gem "selenium-webdriver"
    assert_no_gem "webdrivers"

    assert_no_directory("test")
  end

  def test_generator_if_skip_system_test_is_given
    run_generator [destination_root, "--skip-system-test"]
    assert_no_gem "capybara"
    assert_no_gem "selenium-webdriver"
    assert_no_gem "webdrivers"

    assert_directory("test")

    assert_no_directory("test/system")
  end

  def test_does_not_generate_system_test_files_if_skip_system_test_is_given
    run_generator [destination_root, "--skip-system-test"]

    Dir.chdir(destination_root) do
      quietly { `./bin/rails g scaffold User` }

      assert_no_file("test/application_system_test_case.rb")
      assert_no_file("test/system/users_test.rb")
    end
  end

  def test_javascript_is_skipped_if_required
    run_generator [destination_root, "--skip-javascript"]

    assert_no_file "app/javascript"

    assert_file "app/views/layouts/application.html.erb" do |contents|
      assert_match(/stylesheet_link_tag\s+'application', media: 'all' %>/, contents)
      assert_no_match(/javascript_pack_tag\s+'application'/, contents)
    end
  end

  def test_inclusion_of_jbuilder
    run_generator
    assert_gem "jbuilder"
  end

  def test_inclusion_of_a_debugger
    run_generator
    if defined?(JRUBY_VERSION) || RUBY_ENGINE == "rbx"
      assert_no_gem "byebug"
    else
      assert_gem "byebug"
    end
  end

  def test_inclusion_of_listen_related_configuration_by_default
    run_generator
    if RbConfig::CONFIG["host_os"] =~ /darwin|linux/
      assert_listen_related_configuration
    else
      assert_no_listen_related_configuration
    end
  end

  def test_inclusion_of_listen_related_configuration_on_other_rubies
    ruby_engine = Object.send(:remove_const, :RUBY_ENGINE)
    Object.const_set(:RUBY_ENGINE, "MyRuby")

    run_generator
    if RbConfig::CONFIG["host_os"] =~ /darwin|linux/
      assert_listen_related_configuration
    else
      assert_no_listen_related_configuration
    end
  ensure
    Object.send(:remove_const, :RUBY_ENGINE)
    Object.const_set(:RUBY_ENGINE, ruby_engine)
  end

  def test_non_inclusion_of_listen_related_configuration_if_skip_listen
    run_generator [destination_root, "--skip-listen"]
    assert_no_listen_related_configuration
  end

  def test_evented_file_update_checker_config
    run_generator
    assert_file "config/environments/development.rb" do |content|
      if RbConfig::CONFIG["host_os"] =~ /darwin|linux/
        assert_match(/^\s*config\.file_watcher = ActiveSupport::EventedFileUpdateChecker/, content)
      else
        assert_match(/^\s*# config\.file_watcher = ActiveSupport::EventedFileUpdateChecker/, content)
      end
    end
  end

  def test_template_from_dir_pwd
    FileUtils.cd(Rails.root)
    assert_match(/It works from file!/, run_generator([destination_root, "-m", "lib/template.rb"]))
  end

  def test_usage_read_from_file
    assert_called(File, :read, returns: "USAGE FROM FILE") do
      assert_equal "USAGE FROM FILE", Rails::Generators::AppGenerator.desc
    end
  end

  def test_default_usage
    assert_called(Rails::Generators::AppGenerator, :usage_path, returns: nil) do
      assert_match(/Create rails files for app generator/, Rails::Generators::AppGenerator.desc)
    end
  end

  def test_default_namespace
    assert_match "rails:app", Rails::Generators::AppGenerator.namespace
  end

  def test_file_is_added_for_backwards_compatibility
    action :file, "lib/test_file.rb", "heres test data"
    assert_file "lib/test_file.rb", "heres test data"
  end

  def test_pretend_option
    output = run_generator [File.join(destination_root, "myapp"), "--pretend"]
    assert_no_match(/run  bundle install/, output)
    assert_no_match(/run  git init/, output)
  end

  def test_quiet_option
    output = run_generator [File.join(destination_root, "myapp"), "--quiet"]
    assert_empty output
  end

  def test_force_option_overwrites_every_file_except_master_key
    run_generator [File.join(destination_root, "myapp")]
    output = run_generator [File.join(destination_root, "myapp"), "--force"]
    assert_match(/force/, output)
    assert_no_match("force  config/master.key", output)
  end

  def test_application_name_with_spaces
    path = File.join(destination_root, "foo bar")

    # This also applies to MySQL apps but not with SQLite
    run_generator [path, "-d", "postgresql"]

    assert_file "foo bar/config/database.yml", /database: foo_bar_development/
  end

  def test_web_console
    run_generator
    assert_gem "web-console"
  end

  def test_web_console_with_dev_option
    run_generator [destination_root, "--dev", "--skip-bundle"]

    assert_file "Gemfile" do |content|
      assert_match(/gem 'web-console',\s+github: 'rails\/web-console'/, content)
      assert_no_match(/\Agem 'web-console', '>= 3\.3\.0'\z/, content)
    end
  end

  def test_web_console_with_edge_option
    run_generator [destination_root, "--edge"]

    assert_file "Gemfile" do |content|
      assert_match(/gem 'web-console',\s+github: 'rails\/web-console'/, content)
      assert_no_match(/\Agem 'web-console', '>= 3\.3\.0'\z/, content)
    end
  end

  def test_generation_runs_bundle_install
    generator([destination_root], skip_webpack_install: true)

    assert_bundler_command_called("install")
  end

  def test_generation_use_original_bundle_environment
    generator([destination_root], skip_webpack_install: true)

    mock_original_env = -> do
      { "BUNDLE_RUBYONRAILS__ORG" => "user:pass" }
    end

    ensure_environment_is_set = -> *_args do
      assert_equal "user:pass", ENV["BUNDLE_RUBYONRAILS__ORG"]
    end

    Bundler.stub :original_env, mock_original_env do
      generator.stub :exec_bundle_command, ensure_environment_is_set do
        quietly { generator.invoke_all }
      end
    end
  end

  def test_dev_option
    generator([destination_root], dev: true, skip_webpack_install: true)

    assert_bundler_command_called("install")
    rails_path = File.expand_path("../../..", Rails.root)
    assert_file "Gemfile", /^gem\s+["']rails["'],\s+path:\s+["']#{Regexp.escape(rails_path)}["']$/
  end

  def test_edge_option
    generator([destination_root], edge: true, skip_webpack_install: true)

    assert_bundler_command_called("install")
    assert_file "Gemfile", %r{^gem\s+["']rails["'],\s+github:\s+["']#{Regexp.escape("rails/rails")}["'],\s+branch:\s+["']#{Regexp.escape("6-0-stable")}["']$}
  end

  def test_spring
    run_generator
    assert_gem "spring"
    assert_file("config/environments/test.rb") do |contents|
      assert_match("config.cache_classes = false", contents)
      assert_match("config.action_view.cache_template_loading = true", contents)
    end
  end

  def test_bundler_binstub
    generator([destination_root], skip_webpack_install: true)

    assert_bundler_command_called("binstubs bundler")
  end

  def test_spring_binstubs
    jruby_skip "spring doesn't run on JRuby"

    generator([destination_root], skip_webpack_install: true)

    assert_bundler_command_called("exec spring binstub --all")
  end

  def test_spring_no_fork
    jruby_skip "spring doesn't run on JRuby"
    assert_called_with(Process, :respond_to?, [[:fork], [:fork], [:fork]], returns: false) do
      run_generator

      assert_no_gem "spring"
    end
  end

  def test_skip_spring
    run_generator [destination_root, "--skip-spring"]

    assert_no_file "config/spring.rb"
    assert_no_gem "spring"
    assert_file("config/environments/test.rb") do |contents|
      assert_match("config.cache_classes = true", contents)
    end
  end

  def test_spring_with_dev_option
    run_generator [destination_root, "--dev", "--skip-bundle"]

    assert_no_gem "spring"
  end

  def test_skip_javascript_option
    command_check = -> command, *_ do
      @called ||= 0
      if command == "webpacker:install"
        @called += 1
        assert_equal 0, @called, "webpacker:install expected not to be called, but was called #{@called} times."
      end
    end

    generator([destination_root], skip_javascript: true).stub(:rails_command, command_check) do
      generator.stub :bundle_command, nil do
        quietly { generator.invoke_all }
      end
    end

    assert_no_gem "webpacker"
    assert_file "config/initializers/content_security_policy.rb" do |content|
      assert_no_match(/policy\.connect_src/, content)
    end
  end

  def test_webpack_option_with_js_framework
    command_check = -> command, *_ do
      case command
      when "webpacker:install"
        @webpacker ||= 0
        @webpacker += 1
        assert_equal 1, @webpacker, "webpacker:install expected to be called once, but was called #{@webpacker} times."
      when "webpacker:install:react"
        @react ||= 0
        @react += 1
        assert_equal 1, @react, "webpacker:install:react expected to be called once, but was called #{@react} times."
      end
    end

    generator([destination_root], webpack: "react").stub(:rails_command, command_check) do
      generator.stub :bundle_command, nil do
        quietly { generator.invoke_all }
      end
    end

    assert_gem "webpacker"
  end

  def test_skip_webpack_install
    command_check = -> command do
      if command == "webpacker:install"
        assert false, "webpacker:install expected not to be called."
      end
    end

    generator([destination_root], skip_webpack_install: true).stub(:rails_command, command_check) do
      quietly { generator.invoke_all }
    end

    assert_gem "webpacker"
  end

  def test_generator_if_skip_turbolinks_is_given
    run_generator [destination_root, "--skip-turbolinks"]

    assert_no_gem "turbolinks"
    assert_file "app/views/layouts/application.html.erb" do |content|
      assert_no_match(/data-turbolinks-track/, content)
    end
    assert_file "app/javascript/packs/application.js" do |content|
      assert_no_match(/turbolinks/, content)
    end
  end

  def test_bootsnap
    run_generator [destination_root, "--no-skip-bootsnap"]

    unless defined?(JRUBY_VERSION)
      assert_gem "bootsnap"
      assert_file "config/boot.rb" do |content|
        assert_match(/require 'bootsnap\/setup'/, content)
      end
    else
      assert_no_gem "bootsnap"
      assert_file "config/boot.rb" do |content|
        assert_no_match(/require 'bootsnap\/setup'/, content)
      end
    end
  end

  def test_skip_bootsnap
    run_generator [destination_root, "--skip-bootsnap"]

    assert_no_gem "bootsnap"
    assert_file "config/boot.rb" do |content|
      assert_no_match(/require 'bootsnap\/setup'/, content)
    end
  end

  def test_bootsnap_with_dev_option
    run_generator [destination_root, "--dev", "--skip-bundle"]

    assert_no_gem "bootsnap"
    assert_file "config/boot.rb" do |content|
      assert_no_match(/require 'bootsnap\/setup'/, content)
    end
  end

  def test_inclusion_of_ruby_version
    run_generator

    assert_file "Gemfile" do |content|
      assert_match(/ruby '#{RUBY_VERSION}'/, content)
    end
    assert_file ".ruby-version" do |content|
      if ENV["RBENV_VERSION"]
        assert_match(/#{ENV["RBENV_VERSION"]}/, content)
      elsif ENV["rvm_ruby_string"]
        assert_match(/#{ENV["rvm_ruby_string"]}/, content)
      else
        assert_match(/#{RUBY_ENGINE}-#{RUBY_ENGINE_VERSION}/, content)
      end

      assert content.end_with?("\n"), "expected .ruby-version to end with newline"
    end
  end

  def test_version_control_initializes_git_repo
    run_generator [destination_root]
    assert_directory ".git"
  end

  def test_create_keeps
    run_generator
    folders_with_keep = %w(
      app/assets/images
      app/controllers/concerns
      app/models/concerns
      lib/tasks
      lib/assets
      log
      test/fixtures
      test/fixtures/files
      test/controllers
      test/mailers
      test/models
      test/helpers
      test/integration
      tmp
      tmp/pids
    )
    folders_with_keep.each do |folder|
      assert_file("#{folder}/.keep")
    end
  end

  def test_psych_gem
    run_generator
    gem_regex = /gem 'psych',\s+'~> 2\.0',\s+platforms: :rbx/

    assert_file "Gemfile" do |content|
      if defined?(Rubinius)
        assert_match(gem_regex, content)
      else
        assert_no_match(gem_regex, content)
      end
    end
  end

  def test_after_bundle_callback
    path = "http://example.org/rails_template"
    template = +%{ after_bundle { run 'echo ran after_bundle' } }
    template.instance_eval "def read; self; end" # Make the string respond to read

    check_open = -> *args do
      assert_equal [ path, "Accept" => "application/x-thor-template" ], args
      template
    end

    sequence = ["git init", "install --local", "binstubs bundler", "exec spring binstub --all", "webpacker:install", "echo ran after_bundle"]
    @sequence_step ||= 0
    ensure_bundler_first = -> command, options = nil do
      assert_equal sequence[@sequence_step], command, "commands should be called in sequence #{sequence}"
      @sequence_step += 1
    end

    generator([destination_root], template: path).stub(:open, check_open, template) do
      generator.stub(:bundle_command, ensure_bundler_first) do
        generator.stub(:run, ensure_bundler_first) do
          generator.stub(:rails_command, ensure_bundler_first) do
            quietly { generator.invoke_all }
          end
        end
      end
    end

    assert_equal 6, @sequence_step
  end

  def test_gitignore
    run_generator

    assert_file ".gitignore" do |content|
      assert_match(/config\/master\.key/, content)
    end
  end

  def test_system_tests_directory_generated
    run_generator

    assert_directory("test/system")
    assert_file("test/system/.keep")
  end

  unless Gem.win_platform?
    def test_master_key_is_only_readable_by_the_owner
      run_generator

      stat = File.stat("config/master.key")
      assert_equal "100600", sprintf("%o", stat.mode)
    end
  end

  private
    def stub_rails_application(root)
      Rails.application.config.root = root
      Rails.application.class.stub(:name, "Myapp") do
        yield
      end
    end

    def action(*args, &block)
      capture(:stdout) { generator.send(*args, &block) }
    end

    def assert_gem(gem, constraint = nil)
      if constraint
        assert_file "Gemfile", /^\s*gem\s+["']#{gem}["'], #{constraint}$*/
      else
        assert_file "Gemfile", /^\s*gem\s+["']#{gem}["']$*/
      end
    end

    def assert_no_gem(gem)
      assert_file "Gemfile" do |content|
        assert_no_match(gem, content)
      end
    end

    def assert_listen_related_configuration
      assert_gem "listen"
      assert_gem "spring-watcher-listen"

      assert_file "config/environments/development.rb" do |content|
        assert_match(/^\s*config\.file_watcher = ActiveSupport::EventedFileUpdateChecker/, content)
      end
    end

    def assert_no_listen_related_configuration
      assert_no_gem "listen"

      assert_file "config/environments/development.rb" do |content|
        assert_match(/^\s*# config\.file_watcher = ActiveSupport::EventedFileUpdateChecker/, content)
      end
    end

    def assert_bundler_command_called(target_command)
      command_check = -> (command, env = {}) do
        @command_called ||= 0

        case command
        when target_command
          @command_called += 1
          assert_equal 1, @command_called, "#{command} expected to be called once, but was called #{@command_called} times."
        end
      end

      generator.stub :bundle_command, command_check do
        quietly { generator.invoke_all }
      end
    end
end