aboutsummaryrefslogtreecommitdiffstats
path: root/railties/test/generators/plugin_generator_test.rb
blob: 4ec656d18b629c1287ae0e0cd46f5724cb14aa76 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
# frozen_string_literal: true

require "generators/generators_test_helper"
require "rails/generators/rails/plugin/plugin_generator"
require "generators/shared_generator_tests"
require "rails/engine/updater"

DEFAULT_PLUGIN_FILES = %w(
  .gitignore
  Gemfile
  Rakefile
  README.md
  bukkits.gemspec
  MIT-LICENSE
  lib
  lib/bukkits.rb
  lib/tasks/bukkits_tasks.rake
  lib/bukkits/version.rb
  test/bukkits_test.rb
  test/test_helper.rb
  test/dummy
)

class PluginGeneratorTest < Rails::Generators::TestCase
  include GeneratorsTestHelper
  destination File.join(Rails.root, "tmp/bukkits")
  arguments [destination_root]

  def application_path
    "#{destination_root}/test/dummy"
  end

  # brings setup, teardown, and some tests
  include SharedGeneratorTests

  def test_invalid_plugin_name_raises_an_error
    content = capture(:stderr) { run_generator [File.join(destination_root, "my_plugin-31fr-extension")] }
    assert_equal "Invalid plugin name my_plugin-31fr-extension. Please give a name which does not contain a namespace starting with numeric characters.\n", content

    content = capture(:stderr) { run_generator [File.join(destination_root, "things4.3")] }
    assert_equal "Invalid plugin name things4.3. Please give a name which uses only alphabetic, numeric, \"_\" or \"-\" characters.\n", content

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

    content = capture(:stderr) { run_generator [File.join(destination_root, "plugin")] }
    assert_equal "Invalid plugin name plugin. Please give a name which does not match one of the reserved rails words: application, destroy, plugin, runner, test\n", content

    content = capture(:stderr) { run_generator [File.join(destination_root, "Digest")] }
    assert_equal "Invalid plugin name Digest, constant Digest is already in use. Please choose another plugin name.\n", content
  end

  def test_correct_file_in_lib_folder_of_hyphenated_plugin_name
    run_generator [File.join(destination_root, "hyphenated-name")]
    assert_no_file "hyphenated-name/lib/hyphenated-name.rb"
    assert_no_file "hyphenated-name/lib/hyphenated_name.rb"
    assert_file "hyphenated-name/lib/hyphenated/name.rb", /module Hyphenated\n  module Name\n    # Your code goes here\.\.\.\n  end\nend/
  end

  def test_correct_file_in_lib_folder_of_camelcase_plugin_name
    run_generator [File.join(destination_root, "CamelCasedName")]
    assert_no_file "CamelCasedName/lib/CamelCasedName.rb"
    assert_file "CamelCasedName/lib/camel_cased_name.rb", /module CamelCasedName/
  end

  def test_generating_without_options
    run_generator
    assert_file "README.md", /Bukkits/
    assert_no_file "config/routes.rb"
    assert_no_file "app/assets/config/bukkits_manifest.js"
    assert_file "test/test_helper.rb" do |content|
      assert_match(/require_relative.+test\/dummy\/config\/environment/, content)
      assert_match(/ActiveRecord::Migrator\.migrations_paths.+test\/dummy\/db\/migrate/, content)
      assert_match(/Minitest\.backtrace_filter = Minitest::BacktraceFilter\.new/, content)
      assert_match(/Rails::TestUnitReporter\.executable = 'bin\/test'/, content)
    end
    assert_file "lib/bukkits/railtie.rb", /module Bukkits\n  class Railtie < ::Rails::Railtie\n  end\nend/
    assert_file "lib/bukkits.rb", /require "bukkits\/railtie"/
    assert_file "test/bukkits_test.rb", /assert_kind_of Module, Bukkits/
    assert_file "bin/test"
    assert_no_file "bin/rails"
  end

  def test_generating_in_full_mode_with_almost_of_all_skip_options
    run_generator [destination_root, "--full", "-M", "-O", "-C", "-S", "-T", "--skip-active-storage"]
    assert_file "bin/rails" do |content|
      assert_no_match(/\s+require\s+["']rails\/all["']/, content)
    end
    assert_file "bin/rails", /#\s+require\s+["']active_record\/railtie["']/
    assert_file "bin/rails", /#\s+require\s+["']active_storage\/engine["']/
    assert_file "bin/rails", /#\s+require\s+["']action_mailer\/railtie["']/
    assert_file "bin/rails", /#\s+require\s+["']action_cable\/engine["']/
    assert_file "bin/rails", /#\s+require\s+["']sprockets\/railtie["']/
    assert_file "bin/rails", /#\s+require\s+["']rails\/test_unit\/railtie["']/
  end

  def test_generating_test_files_in_full_mode
    run_generator [destination_root, "--full"]
    assert_directory "test/integration/"

    assert_file "test/integration/navigation_test.rb", /ActionDispatch::IntegrationTest/
  end

  def test_inclusion_of_git_source
    run_generator [destination_root]
    assert_file "Gemfile", /git_source/
  end

  def test_inclusion_of_a_debugger
    run_generator [destination_root, "--full"]
    if defined?(JRUBY_VERSION) || RUBY_ENGINE == "rbx"
      assert_file "Gemfile" do |content|
        assert_no_match(/byebug/, content)
      end
    else
      assert_file "Gemfile", /# gem 'byebug'/
    end
  end

  def test_generating_test_files_in_full_mode_without_unit_test_files
    run_generator [destination_root, "-T", "--full"]

    assert_no_directory "test/integration/"
    assert_no_directory "test"
    assert_file "Rakefile" do |contents|
      assert_no_match(/APP_RAKEFILE/, contents)
    end
    assert_file "bin/rails" do |contents|
      assert_no_match(/APP_PATH/, contents)
    end
  end

  def test_generating_adds_dummy_app_rake_tasks_without_unit_test_files
    run_generator [destination_root, "-T", "--mountable", "--dummy-path", "my_dummy_app"]
    assert_file "Rakefile", /APP_RAKEFILE/
    assert_file "bin/rails", /APP_PATH/
  end

  def test_generating_adds_dummy_app_without_javascript_and_assets_deps
    run_generator

    assert_file "test/dummy/app/assets/stylesheets/application.css"
  end

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

  def test_ensure_that_test_dummy_can_be_generated_from_a_template
    FileUtils.cd(Rails.root)
    run_generator([destination_root, "-m", "lib/create_test_dummy_template.rb", "--skip-test"])
    assert_directory "spec/dummy"
    assert_no_directory "test"
  end

  def test_database_entry_is_generated_for_sqlite3_by_default_in_full_mode
    run_generator([destination_root, "--full"])
    assert_file "test/dummy/config/database.yml", /sqlite/
    assert_file "bukkits.gemspec", /sqlite3/
  end

  def test_config_another_database
    run_generator([destination_root, "-d", "mysql", "--full"])
    assert_file "test/dummy/config/database.yml", /mysql/
    assert_file "bukkits.gemspec", /mysql/
  end

  def test_dont_generate_development_dependency
    run_generator [destination_root, "--skip-active-record"]

    assert_file "bukkits.gemspec" do |contents|
      assert_no_match(/s\.add_development_dependency "sqlite3"/, contents)
    end
  end

  def test_ensure_that_skip_active_record_option_is_passed_to_app_generator
    run_generator [destination_root, "--skip_active_record"]
    assert_file "test/test_helper.rb" do |contents|
      assert_no_match(/ActiveRecord/, contents)
    end
  end

  def test_ensure_that_database_option_is_passed_to_app_generator
    run_generator [destination_root, "--database", "postgresql"]
    assert_file "test/dummy/config/database.yml", /postgres/
  end

  def test_generation_runs_bundle_install
    assert_generates_without_bundler
  end

  def test_dev_option
    assert_generates_without_bundler(dev: true)
    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
    assert_generates_without_bundler(edge: true)
    assert_file "Gemfile", %r{^gem\s+["']rails["'],\s+github:\s+["']#{Regexp.escape("rails/rails")}["']$}
  end

  def test_generation_does_not_run_bundle_install_with_full_and_mountable
    assert_generates_without_bundler(mountable: true, full: true, dev: true)
    assert_no_file "#{destination_root}/Gemfile.lock"
  end

  def test_skip_javascript
    run_generator [destination_root, "--skip-javascript", "--mountable"]
    assert_file "app/views/layouts/bukkits/application.html.erb" do |content|
      assert_no_match "javascript_pack_tag", content
    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_ensure_that_tests_work
    run_generator
    FileUtils.cd destination_root
    quietly { system "bundle install" }
    assert_match(/1 runs, 1 assertions, 0 failures, 0 errors/, `bin/test 2>&1`)
  end

  def test_ensure_that_tests_works_in_full_mode
    run_generator [destination_root, "--full", "--skip_active_record"]
    FileUtils.cd destination_root
    quietly { system "bundle install" }
    assert_match(/1 runs, 1 assertions, 0 failures, 0 errors/, `bundle exec rake test 2>&1`)
  end

  def test_ensure_that_migration_tasks_work_with_mountable_option
    run_generator [destination_root, "--mountable"]
    FileUtils.cd destination_root
    quietly { system "bundle install" }
    output = `bin/rails db:migrate 2>&1`
    assert $?.success?, "Command failed: #{output}"
  end

  def test_creating_engine_in_full_mode
    run_generator [destination_root, "--full"]
    assert_file "app/assets/stylesheets/bukkits"
    assert_file "app/assets/images/bukkits"
    assert_file "app/models"
    assert_file "app/controllers"
    assert_file "app/views"
    assert_file "app/helpers"
    assert_file "app/mailers"
    assert_file "bin/rails", /\s+require\s+["']rails\/all["']/
    assert_file "config/routes.rb", /Rails.application.routes.draw do/
    assert_file "lib/bukkits/engine.rb", /module Bukkits\n  class Engine < ::Rails::Engine\n  end\nend/
    assert_file "lib/bukkits.rb", /require "bukkits\/engine"/
  end

  def test_creating_engine_with_hyphenated_name_in_full_mode
    run_generator [File.join(destination_root, "hyphenated-name"), "--full"]
    assert_no_file "hyphenated-name/app/assets/javascripts/hyphenated/name"
    assert_file "hyphenated-name/app/assets/stylesheets/hyphenated/name"
    assert_file "hyphenated-name/app/assets/images/hyphenated/name"
    assert_file "hyphenated-name/app/models"
    assert_file "hyphenated-name/app/controllers"
    assert_file "hyphenated-name/app/views"
    assert_file "hyphenated-name/app/helpers"
    assert_file "hyphenated-name/app/mailers"
    assert_file "hyphenated-name/bin/rails"
    assert_file "hyphenated-name/config/routes.rb",              /Rails.application.routes.draw do/
    assert_file "hyphenated-name/lib/hyphenated/name/engine.rb", /module Hyphenated\n  module Name\n    class Engine < ::Rails::Engine\n    end\n  end\nend/
    assert_file "hyphenated-name/lib/hyphenated/name.rb",        /require "hyphenated\/name\/engine"/
    assert_file "hyphenated-name/bin/rails",                     /\.\.\/lib\/hyphenated\/name\/engine/
  end

  def test_creating_engine_with_hyphenated_and_underscored_name_in_full_mode
    run_generator [File.join(destination_root, "my_hyphenated-name"), "--full"]
    assert_no_file "my_hyphenated-name/app/assets/javascripts/my_hyphenated/name"
    assert_file "my_hyphenated-name/app/assets/stylesheets/my_hyphenated/name"
    assert_file "my_hyphenated-name/app/assets/images/my_hyphenated/name"
    assert_file "my_hyphenated-name/app/models"
    assert_file "my_hyphenated-name/app/controllers"
    assert_file "my_hyphenated-name/app/views"
    assert_file "my_hyphenated-name/app/helpers"
    assert_file "my_hyphenated-name/app/mailers"
    assert_file "my_hyphenated-name/bin/rails"
    assert_file "my_hyphenated-name/config/routes.rb",              /Rails\.application\.routes\.draw do/
    assert_file "my_hyphenated-name/lib/my_hyphenated/name/engine.rb", /module MyHyphenated\n  module Name\n    class Engine < ::Rails::Engine\n    end\n  end\nend/
    assert_file "my_hyphenated-name/lib/my_hyphenated/name.rb",        /require "my_hyphenated\/name\/engine"/
    assert_file "my_hyphenated-name/bin/rails",                     /\.\.\/lib\/my_hyphenated\/name\/engine/
  end

  def test_being_quiet_while_creating_dummy_application
    assert_no_match(/create\s+config\/application\.rb/, run_generator)
  end

  def test_create_mountable_application_with_mountable_option
    run_generator [destination_root, "--mountable"]
    assert_no_file "app/assets/javascripts/bukkits"
    assert_file "app/assets/stylesheets/bukkits"
    assert_file "app/assets/images/bukkits"
    assert_file "config/routes.rb", /Bukkits::Engine\.routes\.draw do/
    assert_file "lib/bukkits/engine.rb", /isolate_namespace Bukkits/
    assert_file "test/dummy/config/routes.rb", /mount Bukkits::Engine => "\/bukkits"/
    assert_file "app/controllers/bukkits/application_controller.rb", /module Bukkits\n  class ApplicationController < ActionController::Base/
    assert_file "app/models/bukkits/application_record.rb", /module Bukkits\n  class ApplicationRecord < ActiveRecord::Base/
    assert_file "app/jobs/bukkits/application_job.rb", /module Bukkits\n  class ApplicationJob < ActiveJob::Base/
    assert_file "app/mailers/bukkits/application_mailer.rb", /module Bukkits\n  class ApplicationMailer < ActionMailer::Base\n    default from: 'from@example\.com'\n    layout 'mailer'\n/
    assert_file "app/helpers/bukkits/application_helper.rb", /module Bukkits\n  module ApplicationHelper/
    assert_file "app/views/layouts/bukkits/application.html.erb" do |contents|
      assert_match "<title>Bukkits</title>", contents
      assert_match "<%= csrf_meta_tags %>", contents
      assert_match "<%= csp_meta_tag %>", contents
      assert_match(/stylesheet_link_tag\s+['"]bukkits\/application['"]/, contents)
      assert_no_match(/javascript_include_tag\s+['"]bukkits\/application['"]/, contents)
      assert_match "<%= yield %>", contents
    end
    assert_file "test/test_helper.rb" do |content|
      assert_match(/ActiveRecord::Migrator\.migrations_paths.+\.\.\/test\/dummy\/db\/migrate/, content)
      assert_match(/ActiveRecord::Migrator\.migrations_paths.+<<.+\.\.\/db\/migrate/, content)
      assert_match(/ActionDispatch::IntegrationTest\.fixture_path = ActiveSupport::TestCase\.fixture_pat/, content)
      assert_no_match(/Rails::TestUnitReporter\.executable = 'bin\/test'/, content)
    end
    assert_no_file "bin/test"
  end

  def test_create_mountable_application_with_mountable_option_and_hypenated_name
    run_generator [File.join(destination_root, "hyphenated-name"), "--mountable"]
    assert_no_file "hyphenated-name/app/assets/javascripts/hyphenated/name"
    assert_file "hyphenated-name/app/assets/stylesheets/hyphenated/name"
    assert_file "hyphenated-name/app/assets/images/hyphenated/name"
    assert_file "hyphenated-name/config/routes.rb",                                          /Hyphenated::Name::Engine\.routes\.draw do/
    assert_file "hyphenated-name/lib/hyphenated/name/version.rb",                            /module Hyphenated\n  module Name\n    VERSION = '0\.1\.0'\n  end\nend/
    assert_file "hyphenated-name/lib/hyphenated/name/engine.rb",                             /module Hyphenated\n  module Name\n    class Engine < ::Rails::Engine\n      isolate_namespace Hyphenated::Name\n    end\n  end\nend/
    assert_file "hyphenated-name/lib/hyphenated/name.rb",                                    /require "hyphenated\/name\/engine"/
    assert_file "hyphenated-name/test/dummy/config/routes.rb",                               /mount Hyphenated::Name::Engine => "\/hyphenated-name"/
    assert_file "hyphenated-name/app/controllers/hyphenated/name/application_controller.rb", /module Hyphenated\n  module Name\n    class ApplicationController < ActionController::Base\n      protect_from_forgery with: :exception\n    end\n  end\nend\n/
    assert_file "hyphenated-name/app/models/hyphenated/name/application_record.rb",          /module Hyphenated\n  module Name\n    class ApplicationRecord < ActiveRecord::Base\n      self\.abstract_class = true\n    end\n  end\nend/
    assert_file "hyphenated-name/app/jobs/hyphenated/name/application_job.rb",               /module Hyphenated\n  module Name\n    class ApplicationJob < ActiveJob::Base/
    assert_file "hyphenated-name/app/mailers/hyphenated/name/application_mailer.rb",         /module Hyphenated\n  module Name\n    class ApplicationMailer < ActionMailer::Base\n      default from: 'from@example\.com'\n      layout 'mailer'\n    end\n  end\nend/
    assert_file "hyphenated-name/app/helpers/hyphenated/name/application_helper.rb",         /module Hyphenated\n  module Name\n    module ApplicationHelper\n    end\n  end\nend/
    assert_file "hyphenated-name/app/views/layouts/hyphenated/name/application.html.erb" do |contents|
      assert_match "<title>Hyphenated name</title>", contents
      assert_match(/stylesheet_link_tag\s+['"]hyphenated\/name\/application['"]/, contents)
      assert_no_match(/javascript_include_tag\s+['"]hyphenated\/name\/application['"]/, contents)
    end
  end

  def test_create_mountable_application_with_mountable_option_and_hypenated_and_underscored_name
    run_generator [File.join(destination_root, "my_hyphenated-name"), "--mountable"]
    assert_no_file "my_hyphenated-name/app/assets/javascripts/my_hyphenated/name"
    assert_file "my_hyphenated-name/app/assets/stylesheets/my_hyphenated/name"
    assert_file "my_hyphenated-name/app/assets/images/my_hyphenated/name"
    assert_file "my_hyphenated-name/config/routes.rb",                                             /MyHyphenated::Name::Engine\.routes\.draw do/
    assert_file "my_hyphenated-name/lib/my_hyphenated/name/version.rb",                            /module MyHyphenated\n  module Name\n    VERSION = '0\.1\.0'\n  end\nend/
    assert_file "my_hyphenated-name/lib/my_hyphenated/name/engine.rb",                             /module MyHyphenated\n  module Name\n    class Engine < ::Rails::Engine\n      isolate_namespace MyHyphenated::Name\n    end\n  end\nend/
    assert_file "my_hyphenated-name/lib/my_hyphenated/name.rb",                                    /require "my_hyphenated\/name\/engine"/
    assert_file "my_hyphenated-name/test/dummy/config/routes.rb",                                  /mount MyHyphenated::Name::Engine => "\/my_hyphenated-name"/
    assert_file "my_hyphenated-name/app/controllers/my_hyphenated/name/application_controller.rb", /module MyHyphenated\n  module Name\n    class ApplicationController < ActionController::Base\n      protect_from_forgery with: :exception\n    end\n  end\nend\n/
    assert_file "my_hyphenated-name/app/models/my_hyphenated/name/application_record.rb",          /module MyHyphenated\n  module Name\n    class ApplicationRecord < ActiveRecord::Base\n      self\.abstract_class = true\n    end\n  end\nend/
    assert_file "my_hyphenated-name/app/jobs/my_hyphenated/name/application_job.rb",               /module MyHyphenated\n  module Name\n    class ApplicationJob < ActiveJob::Base/
    assert_file "my_hyphenated-name/app/mailers/my_hyphenated/name/application_mailer.rb",         /module MyHyphenated\n  module Name\n    class ApplicationMailer < ActionMailer::Base\n      default from: 'from@example\.com'\n      layout 'mailer'\n    end\n  end\nend/
    assert_file "my_hyphenated-name/app/helpers/my_hyphenated/name/application_helper.rb",         /module MyHyphenated\n  module Name\n    module ApplicationHelper\n    end\n  end\nend/
    assert_file "my_hyphenated-name/app/views/layouts/my_hyphenated/name/application.html.erb" do |contents|
      assert_match "<title>My hyphenated name</title>", contents
      assert_match(/stylesheet_link_tag\s+['"]my_hyphenated\/name\/application['"]/, contents)
      assert_no_match(/javascript_include_tag\s+['"]my_hyphenated\/name\/application['"]/, contents)
    end
  end

  def test_create_mountable_application_with_mountable_option_and_multiple_hypenates_in_name
    run_generator [File.join(destination_root, "deep-hyphenated-name"), "--mountable"]
    assert_no_file "deep-hyphenated-name/app/assets/javascripts/deep/hyphenated/name"
    assert_file "deep-hyphenated-name/app/assets/stylesheets/deep/hyphenated/name"
    assert_file "deep-hyphenated-name/app/assets/images/deep/hyphenated/name"
    assert_file "deep-hyphenated-name/config/routes.rb",                                               /Deep::Hyphenated::Name::Engine\.routes\.draw do/
    assert_file "deep-hyphenated-name/lib/deep/hyphenated/name/version.rb",                            /module Deep\n  module Hyphenated\n    module Name\n      VERSION = '0\.1\.0'\n    end\n  end\nend/
    assert_file "deep-hyphenated-name/lib/deep/hyphenated/name/engine.rb",                             /module Deep\n  module Hyphenated\n    module Name\n      class Engine < ::Rails::Engine\n        isolate_namespace Deep::Hyphenated::Name\n      end\n    end\n  end\nend/
    assert_file "deep-hyphenated-name/lib/deep/hyphenated/name.rb",                                    /require "deep\/hyphenated\/name\/engine"/
    assert_file "deep-hyphenated-name/test/dummy/config/routes.rb",                                    /mount Deep::Hyphenated::Name::Engine => "\/deep-hyphenated-name"/
    assert_file "deep-hyphenated-name/app/controllers/deep/hyphenated/name/application_controller.rb", /module Deep\n  module Hyphenated\n    module Name\n      class ApplicationController < ActionController::Base\n        protect_from_forgery with: :exception\n      end\n    end\n  end\nend\n/
    assert_file "deep-hyphenated-name/app/models/deep/hyphenated/name/application_record.rb",          /module Deep\n  module Hyphenated\n    module Name\n      class ApplicationRecord < ActiveRecord::Base\n        self\.abstract_class = true\n      end\n    end\n  end\nend/
    assert_file "deep-hyphenated-name/app/jobs/deep/hyphenated/name/application_job.rb",               /module Deep\n  module Hyphenated\n    module Name\n      class ApplicationJob < ActiveJob::Base/
    assert_file "deep-hyphenated-name/app/mailers/deep/hyphenated/name/application_mailer.rb",         /module Deep\n  module Hyphenated\n    module Name\n      class ApplicationMailer < ActionMailer::Base\n        default from: 'from@example\.com'\n        layout 'mailer'\n      end\n    end\n  end\nend/
    assert_file "deep-hyphenated-name/app/helpers/deep/hyphenated/name/application_helper.rb",         /module Deep\n  module Hyphenated\n    module Name\n      module ApplicationHelper\n      end\n    end\n  end\nend/
    assert_file "deep-hyphenated-name/app/views/layouts/deep/hyphenated/name/application.html.erb" do |contents|
      assert_match "<title>Deep hyphenated name</title>", contents
      assert_match(/stylesheet_link_tag\s+['"]deep\/hyphenated\/name\/application['"]/, contents)
      assert_no_match(/javascript_include_tag\s+['"]deep\/hyphenated\/name\/application['"]/, contents)
    end
  end

  def test_creating_gemspec
    run_generator
    assert_file "bukkits.gemspec", /spec\.name\s+= "bukkits"/
    assert_file "bukkits.gemspec", /spec\.files = Dir\["\{app,config,db,lib\}\/\*\*\/\*", "MIT-LICENSE", "Rakefile", "README\.md"\]/
    assert_file "bukkits.gemspec", /spec\.version\s+ = Bukkits::VERSION/
  end

  def test_usage_of_engine_commands
    run_generator [destination_root, "--full"]
    assert_file "bin/rails", /ENGINE_PATH = File\.expand_path\('\.\.\/lib\/bukkits\/engine', __dir__\)/
    assert_file "bin/rails", /ENGINE_ROOT = File\.expand_path\('\.\.', __dir__\)/
    assert_file "bin/rails", %r|APP_PATH = File\.expand_path\('\.\./test/dummy/config/application', __dir__\)|
    assert_file "bin/rails", /require 'rails\/all'/
    assert_file "bin/rails", /require 'rails\/engine\/commands'/
  end

  def test_shebang
    run_generator [destination_root, "--full"]
    assert_file "bin/rails", /#!\/usr\/bin\/env ruby/
  end

  def test_passing_dummy_path_as_a_parameter
    run_generator [destination_root, "--dummy_path", "spec/dummy"]
    assert_file "spec/dummy"
    assert_file "spec/dummy/config/application.rb"
    assert_no_file "test/dummy"
    assert_file "test/test_helper.rb" do |content|
      assert_match(/require_relative.+spec\/dummy\/config\/environment/, content)
      assert_match(/ActiveRecord::Migrator\.migrations_paths.+spec\/dummy\/db\/migrate/, content)
    end
  end

  def test_creating_dummy_application_with_different_name
    run_generator [destination_root, "--dummy_path", "spec/fake"]
    assert_file "spec/fake"
    assert_file "spec/fake/config/application.rb"
    assert_no_file "test/dummy"
    assert_file "test/test_helper.rb" do |content|
      assert_match(/require_relative.+spec\/fake\/config\/environment/, content)
      assert_match(/ActiveRecord::Migrator\.migrations_paths.+spec\/fake\/db\/migrate/, content)
    end
  end

  def test_creating_dummy_without_tests_but_with_dummy_path
    run_generator [destination_root, "--dummy_path", "spec/dummy", "--skip-test"]
    assert_directory "spec/dummy"
    assert_file "spec/dummy/config/application.rb", /#\s+require\s+["']rails\/test_unit\/railtie["']/
    assert_no_directory "test"
    assert_file ".gitignore" do |contents|
      assert_match(/spec\/dummy/, contents)
    end
  end

  def test_dummy_appplication_skip_listen_by_default
    run_generator

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

  def test_ensure_that_gitignore_can_be_generated_from_a_template_for_dummy_path
    FileUtils.cd(Rails.root)
    run_generator([destination_root, "--dummy_path", "spec/dummy", "--skip-test"])
    assert_file ".gitignore" do |contents|
      assert_match(/spec\/dummy/, contents)
    end
  end

  def test_unnecessary_files_are_not_generated_in_dummy_application
    run_generator
    assert_no_file "test/dummy/.gitignore"
    assert_no_file "test/dummy/db/seeds.rb"
    assert_no_file "test/dummy/Gemfile"
    assert_no_file "test/dummy/public/robots.txt"
    assert_no_file "test/dummy/README.md"
    assert_no_file "test/dummy/config/master.key"
    assert_no_file "test/dummy/config/credentials.yml.enc"
    assert_no_directory "test/dummy/lib/tasks"
    assert_no_directory "test/dummy/test"
    assert_no_directory "test/dummy/vendor"
    assert_no_directory "test/dummy/.git"
  end

  def test_skipping_test_files
    run_generator [destination_root, "--skip-test"]
    assert_no_directory "test"
    assert_file ".gitignore" do |contents|
      assert_no_match(/test\/dummy/, contents)
    end
  end

  def test_skipping_gemspec
    run_generator [destination_root, "--skip-gemspec"]
    assert_no_file "bukkits.gemspec"
    assert_file "Gemfile" do |contents|
      assert_no_match("gemspec", contents)
      assert_match(/gem 'rails'/, contents)
      assert_match_sqlite3(contents)
    end
  end

  def test_skipping_gemspec_in_full_mode
    run_generator [destination_root, "--skip-gemspec", "--full"]
    assert_no_file "bukkits.gemspec"
    assert_file "Gemfile" do |contents|
      assert_no_match("gemspec", contents)
      assert_match(/gem 'rails'/, contents)
      assert_match_sqlite3(contents)
    end
  end

  def test_creating_plugin_in_app_directory_adds_gemfile_entry
    # simulate application existence
    gemfile_path = "#{Rails.root}/Gemfile"
    Object.const_set("APP_PATH", Rails.root)
    FileUtils.touch gemfile_path
    File.write(gemfile_path, "#foo")

    run_generator

    assert_file gemfile_path, /^gem 'bukkits', path: 'tmp\/bukkits'/
  ensure
    Object.send(:remove_const, "APP_PATH")
    FileUtils.rm gemfile_path
  end

  def test_creating_plugin_only_specify_plugin_name_in_app_directory_adds_gemfile_entry
    # simulate application existence
    gemfile_path = "#{Rails.root}/Gemfile"
    Object.const_set("APP_PATH", Rails.root)
    FileUtils.touch gemfile_path

    FileUtils.cd(destination_root)
    run_generator ["bukkits"]

    assert_file gemfile_path, /gem 'bukkits', path: 'bukkits'/
  ensure
    Object.send(:remove_const, "APP_PATH")
    FileUtils.rm gemfile_path
  end

  def test_skipping_gemfile_entry
    # simulate application existence
    gemfile_path = "#{Rails.root}/Gemfile"
    Object.const_set("APP_PATH", Rails.root)
    FileUtils.touch gemfile_path

    run_generator [destination_root, "--skip-gemfile-entry"]

    assert_file gemfile_path do |contents|
      assert_no_match(/gem 'bukkits', path: 'tmp\/bukkits'/, contents)
    end
  ensure
    Object.send(:remove_const, "APP_PATH")
    FileUtils.rm gemfile_path
  end

  def test_generating_controller_inside_mountable_engine
    run_generator [destination_root, "--mountable"]

    capture(:stdout) do
      `#{destination_root}/bin/rails g controller admin/dashboard foo`
    end

    assert_file "config/routes.rb" do |contents|
      assert_match(/namespace :admin/, contents)
      assert_no_match(/namespace :bukkit/, contents)
    end
  end

  def test_git_name_and_email_in_gemspec_file
    name = `git config user.name`.chomp rescue "TODO: Write your name"
    email = `git config user.email`.chomp rescue "TODO: Write your email address"

    run_generator
    assert_file "bukkits.gemspec" do |contents|
      assert_match name, contents
      assert_match email, contents
    end
  end

  def test_git_name_in_license_file
    name = `git config user.name`.chomp rescue "TODO: Write your name"

    run_generator
    assert_file "MIT-LICENSE" do |contents|
      assert_match name, contents
    end
  end

  def test_no_details_from_git_when_skip_git
    name = "TODO: Write your name"
    email = "TODO: Write your email address"

    run_generator [destination_root, "--skip-git"]
    assert_file "MIT-LICENSE" do |contents|
      assert_match name, contents
    end
    assert_file "bukkits.gemspec" do |contents|
      assert_match name, contents
      assert_match email, contents
    end
  end

  def test_skipping_useless_folders_generation_for_api_engines
    ["--full", "--mountable"].each do |option|
      run_generator [destination_root, option, "--api"]

      assert_no_directory "app/assets"
      assert_no_directory "app/helpers"
      assert_no_directory "app/views"

      FileUtils.rm_rf destination_root
    end
  end

  def test_application_controller_parent_for_mountable_api_plugins
    run_generator [destination_root, "--mountable", "--api"]

    assert_file "app/controllers/bukkits/application_controller.rb" do |content|
      assert_match "ApplicationController < ActionController::API", content
    end
  end

  def test_dummy_api_application_for_api_plugins
    run_generator [destination_root, "--api"]

    assert_file "test/dummy/config/application.rb" do |content|
      assert_match "config.api_only = true", content
    end
  end

  def test_api_generators_configuration_for_api_engines
    run_generator [destination_root, "--full", "--api"]

    assert_file "lib/bukkits/engine.rb" do |content|
      assert_match "config.generators.api_only = true", content
    end
  end

  def test_scaffold_generator_for_mountable_api_plugins
    run_generator [destination_root, "--mountable", "--api"]

    capture(:stdout) do
      `#{destination_root}/bin/rails g scaffold article`
    end

    assert_file "app/models/bukkits/article.rb"
    assert_file "app/controllers/bukkits/articles_controller.rb" do |content|
      assert_match "only: [:show, :update, :destroy]", content
    end

    assert_no_directory "app/assets"
    assert_no_directory "app/helpers"
    assert_no_directory "app/views"
  end

  def test_model_with_existent_application_record_in_mountable_engine
    run_generator [destination_root, "--mountable"]
    capture(:stdout) do
      `#{destination_root}/bin/rails g model article`
    end

    assert_file "app/models/bukkits/article.rb", /class Article < ApplicationRecord/
  end

  def test_generate_application_mailer_when_does_not_exist_in_mountable_engine
    run_generator [destination_root, "--mountable"]
    FileUtils.rm "#{destination_root}/app/mailers/bukkits/application_mailer.rb"
    capture(:stdout) do
      `#{destination_root}/bin/rails g mailer User`
    end

    assert_file "#{destination_root}/app/mailers/bukkits/application_mailer.rb" do |mailer|
      assert_match(/module Bukkits/, mailer)
      assert_match(/class ApplicationMailer < ActionMailer::Base/, mailer)
    end
  end

  def test_generate_mailer_layouts_when_does_not_exist_in_mountable_engine
    run_generator [destination_root, "--mountable"]
    capture(:stdout) do
      `#{destination_root}/bin/rails g mailer User`
    end

    assert_file "#{destination_root}/app/views/layouts/bukkits/mailer.text.erb" do |view|
      assert_match(/<%= yield %>/, view)
    end

    assert_file "#{destination_root}/app/views/layouts/bukkits/mailer.html.erb" do |view|
      assert_match(%r{<body>\n    <%= yield %>\n  </body>}, view)
    end
  end

  def test_generate_application_job_when_does_not_exist_in_mountable_engine
    run_generator [destination_root, "--mountable"]
    FileUtils.rm "#{destination_root}/app/jobs/bukkits/application_job.rb"
    capture(:stdout) do
      `#{destination_root}/bin/rails g job refresh_counters`
    end

    assert_file "#{destination_root}/app/jobs/bukkits/application_job.rb" do |record|
      assert_match(/module Bukkits/, record)
      assert_match(/class ApplicationJob < ActiveJob::Base/, record)
    end
  end

  def test_app_update_generates_bin_file
    run_generator [destination_root, "--mountable"]

    Object.const_set("ENGINE_ROOT", destination_root)
    FileUtils.rm("#{destination_root}/bin/rails")

    quietly { Rails::Engine::Updater.run(:create_bin_files) }

    assert_file "#{destination_root}/bin/rails" do |content|
      assert_match(%r|APP_PATH = File\.expand_path\('\.\./test/dummy/config/application', __dir__\)|, content)
    end
  ensure
    Object.send(:remove_const, "ENGINE_ROOT")
  end

  private

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

    def default_files
      ::DEFAULT_PLUGIN_FILES
    end

    def assert_match_sqlite3(contents)
      if defined?(JRUBY_VERSION)
        assert_match(/group :development do\n  gem 'activerecord-jdbcsqlite3-adapter'\nend/, contents)
      else
        assert_match(/group :development do\n  gem 'sqlite3'\nend/, contents)
      end
    end

    def assert_generates_without_bundler(options = {})
      generator([destination_root], options)

      command_check = -> command do
        case command
        when "install"
          flunk "install expected to not be called"
        when "exec spring binstub --all"
          # Called when running tests with spring, let through unscathed.
        end
      end

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