summaryrefslogtreecommitdiff
path: root/spec/models/application_setting_spec.rb
blob: f618e13ca266f0cd5f1eca45b06d628592a90b9d (plain)
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
# frozen_string_literal: true

require 'spec_helper'

RSpec.describe ApplicationSetting do
  using RSpec::Parameterized::TableSyntax

  subject(:setting) { described_class.create_from_defaults }

  it { include(CacheableAttributes) }
  it { include(ApplicationSettingImplementation) }
  it { expect(described_class.current_without_cache).to eq(described_class.last) }

  it { expect(setting).to be_valid }
  it { expect(setting.uuid).to be_present }
  it { expect(setting).to have_db_column(:auto_devops_enabled) }

  describe 'validations' do
    let(:http)  { 'http://example.com' }
    let(:https) { 'https://example.com' }
    let(:ftp)   { 'ftp://example.com' }
    let(:javascript) { 'javascript:alert(window.opener.document.location)' }

    it { is_expected.to allow_value(nil).for(:home_page_url) }
    it { is_expected.to allow_value(http).for(:home_page_url) }
    it { is_expected.to allow_value(https).for(:home_page_url) }
    it { is_expected.not_to allow_value(ftp).for(:home_page_url) }

    it { is_expected.to allow_value(nil).for(:after_sign_out_path) }
    it { is_expected.to allow_value(http).for(:after_sign_out_path) }
    it { is_expected.to allow_value(https).for(:after_sign_out_path) }
    it { is_expected.not_to allow_value(ftp).for(:after_sign_out_path) }

    it { is_expected.to allow_value("dev.gitlab.com").for(:commit_email_hostname) }
    it { is_expected.not_to allow_value("@dev.gitlab").for(:commit_email_hostname) }

    it { is_expected.to allow_value(true).for(:container_expiration_policies_enable_historic_entries) }
    it { is_expected.to allow_value(false).for(:container_expiration_policies_enable_historic_entries) }
    it { is_expected.not_to allow_value(nil).for(:container_expiration_policies_enable_historic_entries) }

    it { is_expected.to allow_value("myemail@gitlab.com").for(:lets_encrypt_notification_email) }
    it { is_expected.to allow_value(nil).for(:lets_encrypt_notification_email) }
    it { is_expected.not_to allow_value("notanemail").for(:lets_encrypt_notification_email) }
    it { is_expected.not_to allow_value("myemail@example.com").for(:lets_encrypt_notification_email) }
    it { is_expected.to allow_value("myemail@test.example.com").for(:lets_encrypt_notification_email) }

    it { is_expected.to allow_value(['192.168.1.1'] * 1_000).for(:outbound_local_requests_whitelist) }
    it { is_expected.not_to allow_value(['192.168.1.1'] * 1_001).for(:outbound_local_requests_whitelist) }
    it { is_expected.to allow_value(['1' * 255]).for(:outbound_local_requests_whitelist) }
    it { is_expected.not_to allow_value(['1' * 256]).for(:outbound_local_requests_whitelist) }
    it { is_expected.not_to allow_value(['ğitlab.com']).for(:outbound_local_requests_whitelist) }
    it { is_expected.to allow_value(['xn--itlab-j1a.com']).for(:outbound_local_requests_whitelist) }
    it { is_expected.not_to allow_value(['<h1></h1>']).for(:outbound_local_requests_whitelist) }
    it { is_expected.to allow_value(['gitlab.com']).for(:outbound_local_requests_whitelist) }
    it { is_expected.not_to allow_value(nil).for(:outbound_local_requests_whitelist) }
    it { is_expected.to allow_value([]).for(:outbound_local_requests_whitelist) }

    it { is_expected.to allow_value(nil).for(:static_objects_external_storage_url) }
    it { is_expected.to allow_value(http).for(:static_objects_external_storage_url) }
    it { is_expected.to allow_value(https).for(:static_objects_external_storage_url) }
    it { is_expected.to allow_value(['/example'] * 100).for(:protected_paths) }
    it { is_expected.not_to allow_value(['/example'] * 101).for(:protected_paths) }
    it { is_expected.not_to allow_value(nil).for(:protected_paths) }
    it { is_expected.to allow_value([]).for(:protected_paths) }

    it { is_expected.to allow_value(3).for(:push_event_hooks_limit) }
    it { is_expected.not_to allow_value('three').for(:push_event_hooks_limit) }
    it { is_expected.not_to allow_value(nil).for(:push_event_hooks_limit) }

    it { is_expected.to allow_value(3).for(:push_event_activities_limit) }
    it { is_expected.not_to allow_value('three').for(:push_event_activities_limit) }
    it { is_expected.not_to allow_value(nil).for(:push_event_activities_limit) }

    it { is_expected.to validate_numericality_of(:snippet_size_limit).only_integer.is_greater_than(0) }
    it { is_expected.to validate_presence_of(:max_artifacts_size) }
    it { is_expected.to validate_numericality_of(:max_artifacts_size).only_integer.is_greater_than(0) }
    it { is_expected.to validate_presence_of(:max_pages_size) }
    it 'ensures max_pages_size is an integer greater than 0 (or equal to 0 to indicate unlimited/maximum)' do
      is_expected.to validate_numericality_of(:max_pages_size).only_integer.is_greater_than_or_equal_to(0)
                       .is_less_than(::Gitlab::Pages::MAX_SIZE / 1.megabyte)
    end

    it { is_expected.not_to allow_value(7).for(:minimum_password_length) }
    it { is_expected.not_to allow_value(129).for(:minimum_password_length) }
    it { is_expected.not_to allow_value(nil).for(:minimum_password_length) }
    it { is_expected.not_to allow_value('abc').for(:minimum_password_length) }
    it { is_expected.to allow_value(10).for(:minimum_password_length) }

    it { is_expected.to allow_value(0).for(:namespace_storage_size_limit) }
    it { is_expected.to allow_value(1).for(:namespace_storage_size_limit) }
    it { is_expected.not_to allow_value(nil).for(:namespace_storage_size_limit) }
    it { is_expected.not_to allow_value(-1).for(:namespace_storage_size_limit) }

    it { is_expected.to allow_value(300).for(:issues_create_limit) }
    it { is_expected.not_to allow_value('three').for(:issues_create_limit) }
    it { is_expected.not_to allow_value(nil).for(:issues_create_limit) }
    it { is_expected.not_to allow_value(10.5).for(:issues_create_limit) }
    it { is_expected.not_to allow_value(-1).for(:issues_create_limit) }

    it { is_expected.to allow_value(0).for(:raw_blob_request_limit) }
    it { is_expected.not_to allow_value('abc').for(:raw_blob_request_limit) }
    it { is_expected.not_to allow_value(nil).for(:raw_blob_request_limit) }
    it { is_expected.not_to allow_value(10.5).for(:raw_blob_request_limit) }
    it { is_expected.not_to allow_value(-1).for(:raw_blob_request_limit) }

    it { is_expected.not_to allow_value(false).for(:hashed_storage_enabled) }

    it { is_expected.not_to allow_value(101).for(:repository_storages_weighted_default) }
    it { is_expected.not_to allow_value(-1).for(:repository_storages_weighted_default) }
    it { is_expected.to allow_value(100).for(:repository_storages_weighted_default) }
    it { is_expected.to allow_value(0).for(:repository_storages_weighted_default) }
    it { is_expected.to allow_value(50).for(:repository_storages_weighted_default) }
    it { is_expected.to allow_value(nil).for(:repository_storages_weighted_default) }
    it { is_expected.not_to allow_value({ default: 100, shouldntexist: 50 }).for(:repository_storages_weighted) }

    context 'grafana_url validations' do
      before do
        subject.instance_variable_set(:@parsed_grafana_url, nil)
      end

      it { is_expected.to allow_value(http).for(:grafana_url) }
      it { is_expected.to allow_value(https).for(:grafana_url) }
      it { is_expected.not_to allow_value(ftp).for(:grafana_url) }
      it { is_expected.not_to allow_value(javascript).for(:grafana_url) }
      it { is_expected.to allow_value('/-/grafana').for(:grafana_url) }
      it { is_expected.to allow_value('http://localhost:9000').for(:grafana_url) }

      context 'when local URLs are not allowed in system hooks' do
        before do
          stub_application_setting(allow_local_requests_from_system_hooks: false)
        end

        it { is_expected.not_to allow_value('http://localhost:9000').for(:grafana_url) }
      end

      context 'with invalid grafana URL' do
        it 'adds an error' do
          subject.grafana_url = ' ' + http
          expect(subject.save).to be false

          expect(subject.errors[:grafana_url]).to eq([
            'must be a valid relative or absolute URL. ' \
            'Please check your Grafana URL setting in ' \
            'Admin Area > Settings > Metrics and profiling > Metrics - Grafana'
          ])
        end
      end

      context 'with blocked grafana URL' do
        it 'adds an error' do
          subject.grafana_url = javascript
          expect(subject.save).to be false

          expect(subject.errors[:grafana_url]).to eq([
            'is blocked: Only allowed schemes are http, https. Please check your ' \
            'Grafana URL setting in ' \
            'Admin Area > Settings > Metrics and profiling > Metrics - Grafana'
          ])
        end
      end
    end

    describe 'spam_check_endpoint' do
      context 'when spam_check_endpoint is enabled' do
        before do
          setting.spam_check_endpoint_enabled = true
        end

        it { is_expected.to allow_value('https://example.org/spam_check').for(:spam_check_endpoint_url) }
        it { is_expected.not_to allow_value('nonsense').for(:spam_check_endpoint_url) }
        it { is_expected.not_to allow_value(nil).for(:spam_check_endpoint_url) }
        it { is_expected.not_to allow_value('').for(:spam_check_endpoint_url) }
      end

      context 'when spam_check_endpoint is NOT enabled' do
        before do
          setting.spam_check_endpoint_enabled = false
        end

        it { is_expected.to allow_value('https://example.org/spam_check').for(:spam_check_endpoint_url) }
        it { is_expected.not_to allow_value('nonsense').for(:spam_check_endpoint_url) }
        it { is_expected.to allow_value(nil).for(:spam_check_endpoint_url) }
        it { is_expected.to allow_value('').for(:spam_check_endpoint_url) }
      end
    end

    context 'when snowplow is enabled' do
      before do
        setting.snowplow_enabled = true
      end

      it { is_expected.not_to allow_value(nil).for(:snowplow_collector_hostname) }
      it { is_expected.to allow_value("snowplow.gitlab.com").for(:snowplow_collector_hostname) }
      it { is_expected.not_to allow_value('/example').for(:snowplow_collector_hostname) }
      it { is_expected.to allow_value('https://example.org').for(:snowplow_iglu_registry_url) }
      it { is_expected.not_to allow_value('not-a-url').for(:snowplow_iglu_registry_url) }
      it { is_expected.to allow_value(nil).for(:snowplow_iglu_registry_url) }
    end

    context 'when snowplow is not enabled' do
      it { is_expected.to allow_value(nil).for(:snowplow_collector_hostname) }
      it { is_expected.to allow_value(nil).for(:snowplow_iglu_registry_url) }
    end

    context "when user accepted let's encrypt terms of service" do
      before do
        setting.update(lets_encrypt_terms_of_service_accepted: true)
      end

      it { is_expected.not_to allow_value(nil).for(:lets_encrypt_notification_email) }
    end

    describe 'EKS integration' do
      before do
        setting.eks_integration_enabled = eks_enabled
      end

      context 'integration is disabled' do
        let(:eks_enabled) { false }

        it { is_expected.to allow_value(nil).for(:eks_account_id) }
        it { is_expected.to allow_value(nil).for(:eks_access_key_id) }
        it { is_expected.to allow_value(nil).for(:eks_secret_access_key) }
      end

      context 'integration is enabled' do
        let(:eks_enabled) { true }

        it { is_expected.to allow_value('123456789012').for(:eks_account_id) }
        it { is_expected.not_to allow_value(nil).for(:eks_account_id) }
        it { is_expected.not_to allow_value('123').for(:eks_account_id) }
        it { is_expected.not_to allow_value('12345678901a').for(:eks_account_id) }

        it { is_expected.to allow_value('access-key-id-12').for(:eks_access_key_id) }
        it { is_expected.not_to allow_value('a' * 129).for(:eks_access_key_id) }
        it { is_expected.not_to allow_value('short-key').for(:eks_access_key_id) }
        it { is_expected.not_to allow_value(nil).for(:eks_access_key_id) }

        it { is_expected.to allow_value('secret-access-key').for(:eks_secret_access_key) }
        it { is_expected.not_to allow_value(nil).for(:eks_secret_access_key) }
      end
    end

    describe 'default_artifacts_expire_in' do
      it 'sets an error if it cannot parse' do
        setting.update(default_artifacts_expire_in: 'a')

        expect_invalid
      end

      it 'sets an error if it is blank' do
        setting.update(default_artifacts_expire_in: ' ')

        expect_invalid
      end

      it 'sets the value if it is valid' do
        setting.update(default_artifacts_expire_in: '30 days')

        expect(setting).to be_valid
        expect(setting.default_artifacts_expire_in).to eq('30 days')
      end

      it 'sets the value if it is 0' do
        setting.update(default_artifacts_expire_in: '0')

        expect(setting).to be_valid
        expect(setting.default_artifacts_expire_in).to eq('0')
      end

      def expect_invalid
        expect(setting).to be_invalid
        expect(setting.errors.messages)
          .to have_key(:default_artifacts_expire_in)
      end
    end

    it { is_expected.to validate_presence_of(:max_attachment_size) }

    it do
      is_expected.to validate_numericality_of(:max_attachment_size)
        .only_integer
        .is_greater_than(0)
    end

    it { is_expected.to validate_presence_of(:max_import_size) }

    it do
      is_expected.to validate_numericality_of(:max_import_size)
        .only_integer
        .is_greater_than_or_equal_to(0)
    end

    it do
      is_expected.to validate_numericality_of(:local_markdown_version)
        .only_integer
        .is_greater_than_or_equal_to(0)
        .is_less_than(65536)
    end

    context 'key restrictions' do
      it 'supports all key types' do
        expect(described_class::SUPPORTED_KEY_TYPES).to contain_exactly(:rsa, :dsa, :ecdsa, :ed25519)
      end

      it 'does not allow all key types to be disabled' do
        described_class::SUPPORTED_KEY_TYPES.each do |type|
          setting["#{type}_key_restriction"] = described_class::FORBIDDEN_KEY_VALUE
        end

        expect(setting).not_to be_valid
        expect(setting.errors.messages).to have_key(:allowed_key_types)
      end

      where(:type) do
        described_class::SUPPORTED_KEY_TYPES
      end

      with_them do
        let(:field) { :"#{type}_key_restriction" }

        it { is_expected.to validate_presence_of(field) }
        it { is_expected.to allow_value(*KeyRestrictionValidator.supported_key_restrictions(type)).for(field) }
        it { is_expected.not_to allow_value(128).for(field) }
      end
    end

    it_behaves_like 'an object with email-formated attributes', :admin_notification_email do
      subject { setting }
    end

    # Upgraded databases will have this sort of content
    context 'repository_storages is a String, not an Array' do
      before do
        described_class.where(id: setting.id).update_all(repository_storages: 'default')
      end

      it { expect(setting.repository_storages).to eq(['default']) }
    end

    context 'auto_devops_domain setting' do
      context 'when auto_devops_enabled? is true' do
        before do
          setting.update(auto_devops_enabled: true)
        end

        it 'can be blank' do
          setting.update(auto_devops_domain: '')

          expect(setting).to be_valid
        end

        context 'with a valid value' do
          before do
            setting.update(auto_devops_domain: 'domain.com')
          end

          it 'is valid' do
            expect(setting).to be_valid
          end
        end

        context 'with an invalid value' do
          before do
            setting.update(auto_devops_domain: 'definitelynotahostname')
          end

          it 'is invalid' do
            expect(setting).to be_invalid
          end
        end
      end
    end

    context 'repository storages' do
      before do
        storages = {
          'custom1' => 'tmp/tests/custom_repositories_1',
          'custom2' => 'tmp/tests/custom_repositories_2',
          'custom3' => 'tmp/tests/custom_repositories_3'

        }
        allow(Gitlab.config.repositories).to receive(:storages).and_return(storages)
      end

      describe 'inclusion' do
        it { is_expected.to allow_value('custom1').for(:repository_storages) }
        it { is_expected.to allow_value(%w(custom2 custom3)).for(:repository_storages) }
        it { is_expected.not_to allow_value('alternative').for(:repository_storages) }
        it { is_expected.not_to allow_value(%w(alternative custom1)).for(:repository_storages) }
      end

      describe 'presence' do
        it { is_expected.not_to allow_value([]).for(:repository_storages) }
        it { is_expected.not_to allow_value("").for(:repository_storages) }
        it { is_expected.not_to allow_value(nil).for(:repository_storages) }
      end
    end

    context 'housekeeping settings' do
      it { is_expected.not_to allow_value(0).for(:housekeeping_incremental_repack_period) }

      it 'wants the full repack period to be at least the incremental repack period' do
        subject.housekeeping_incremental_repack_period = 2
        subject.housekeeping_full_repack_period = 1

        expect(subject).not_to be_valid
      end

      it 'wants the gc period to be at least the full repack period' do
        subject.housekeeping_full_repack_period = 100
        subject.housekeeping_gc_period = 90

        expect(subject).not_to be_valid
      end

      it 'allows the same period for incremental repack and full repack, effectively skipping incremental repack' do
        subject.housekeeping_incremental_repack_period = 2
        subject.housekeeping_full_repack_period = 2

        expect(subject).to be_valid
      end

      it 'allows the same period for full repack and gc, effectively skipping full repack' do
        subject.housekeeping_full_repack_period = 100
        subject.housekeeping_gc_period = 100

        expect(subject).to be_valid
      end
    end

    context 'gitaly timeouts' do
      it "validates that the default_timeout is lower than the max_request_duration" do
        is_expected.to validate_numericality_of(:gitaly_timeout_default)
          .is_less_than_or_equal_to(Settings.gitlab.max_request_duration_seconds)
      end

      [:gitaly_timeout_default, :gitaly_timeout_medium, :gitaly_timeout_fast].each do |timeout_name|
        it do
          is_expected.to validate_presence_of(timeout_name)
          is_expected.to validate_numericality_of(timeout_name).only_integer
            .is_greater_than_or_equal_to(0)
        end
      end

      [:gitaly_timeout_medium, :gitaly_timeout_fast].each do |timeout_name|
        it "validates that #{timeout_name} is lower than timeout_default" do
          subject[:gitaly_timeout_default] = 50
          subject[timeout_name] = 100

          expect(subject).to be_invalid
        end
      end

      it 'accepts all timeouts equal' do
        subject.gitaly_timeout_default = 0
        subject.gitaly_timeout_medium = 0
        subject.gitaly_timeout_fast = 0

        expect(subject).to be_valid
      end

      it 'accepts timeouts in descending order' do
        subject.gitaly_timeout_default = 50
        subject.gitaly_timeout_medium = 30
        subject.gitaly_timeout_fast = 20

        expect(subject).to be_valid
      end

      it 'rejects timeouts in ascending order' do
        subject.gitaly_timeout_default = 20
        subject.gitaly_timeout_medium = 30
        subject.gitaly_timeout_fast = 50

        expect(subject).to be_invalid
      end

      it 'rejects medium timeout larger than default' do
        subject.gitaly_timeout_default = 30
        subject.gitaly_timeout_medium = 50
        subject.gitaly_timeout_fast = 20

        expect(subject).to be_invalid
      end

      it 'rejects medium timeout smaller than fast' do
        subject.gitaly_timeout_default = 30
        subject.gitaly_timeout_medium = 15
        subject.gitaly_timeout_fast = 20

        expect(subject).to be_invalid
      end

      it 'does not prevent from saving when gitaly timeouts were previously invalid' do
        subject.update_column(:gitaly_timeout_default, Settings.gitlab.max_request_duration_seconds + 1)

        expect(subject.reload).to be_valid
      end
    end

    describe 'enforcing terms' do
      it 'requires the terms to present when enforcing users to accept' do
        subject.enforce_terms = true

        expect(subject).to be_invalid
      end

      it 'is valid when terms are created' do
        create(:term)
        subject.enforce_terms = true

        expect(subject).to be_valid
      end
    end

    describe 'when external authorization service is enabled' do
      before do
        setting.external_authorization_service_enabled = true
      end

      it { is_expected.not_to allow_value('not a URL').for(:external_authorization_service_url) }
      it { is_expected.to allow_value('https://example.com').for(:external_authorization_service_url) }
      it { is_expected.to allow_value('').for(:external_authorization_service_url) }
      it { is_expected.not_to allow_value(nil).for(:external_authorization_service_default_label) }
      it { is_expected.not_to allow_value(11).for(:external_authorization_service_timeout) }
      it { is_expected.not_to allow_value(0).for(:external_authorization_service_timeout) }
      it { is_expected.not_to allow_value('not a certificate').for(:external_auth_client_cert) }
      it { is_expected.to allow_value('').for(:external_auth_client_cert) }
      it { is_expected.to allow_value('').for(:external_auth_client_key) }

      context 'when setting a valid client certificate for external authorization' do
        let(:certificate_data) { File.read('spec/fixtures/passphrase_x509_certificate.crt') }

        before do
          setting.external_auth_client_cert = certificate_data
        end

        it 'requires a valid client key when a certificate is set' do
          expect(setting).not_to allow_value('fefefe').for(:external_auth_client_key)
        end

        it 'requires a matching certificate' do
          other_private_key = File.read('spec/fixtures/x509_certificate_pk.key')

          expect(setting).not_to allow_value(other_private_key).for(:external_auth_client_key)
        end

        it 'the credentials are valid when the private key can be read and matches the certificate' do
          tls_attributes = [:external_auth_client_key_pass,
                            :external_auth_client_key,
                            :external_auth_client_cert]
          setting.external_auth_client_key = File.read('spec/fixtures/passphrase_x509_certificate_pk.key')
          setting.external_auth_client_key_pass = '5iveL!fe'

          setting.validate

          expect(setting.errors).not_to include(*tls_attributes)
        end
      end
    end

    context 'asset proxy settings' do
      before do
        subject.asset_proxy_enabled = true
      end

      describe '#asset_proxy_url' do
        it { is_expected.not_to allow_value('').for(:asset_proxy_url) }
        it { is_expected.to allow_value(http).for(:asset_proxy_url) }
        it { is_expected.to allow_value(https).for(:asset_proxy_url) }
        it { is_expected.not_to allow_value(ftp).for(:asset_proxy_url) }

        it 'is not required when asset proxy is disabled' do
          subject.asset_proxy_enabled = false
          subject.asset_proxy_url = ''

          expect(subject).to be_valid
        end
      end

      describe '#asset_proxy_secret_key' do
        it { is_expected.not_to allow_value('').for(:asset_proxy_secret_key) }
        it { is_expected.to allow_value('anything').for(:asset_proxy_secret_key) }

        it 'is not required when asset proxy is disabled' do
          subject.asset_proxy_enabled = false
          subject.asset_proxy_secret_key = ''

          expect(subject).to be_valid
        end

        it 'is encrypted' do
          subject.asset_proxy_secret_key = 'shared secret'

          expect(subject.encrypted_asset_proxy_secret_key).to be_present
          expect(subject.encrypted_asset_proxy_secret_key).not_to eq(subject.asset_proxy_secret_key)
        end
      end

      describe '#asset_proxy_whitelist' do
        context 'when given an Array' do
          it 'sets the domains and adds current running host' do
            setting.asset_proxy_whitelist = ['example.com', 'assets.example.com']
            expect(setting.asset_proxy_whitelist).to eq(['example.com', 'assets.example.com', 'localhost'])
          end
        end

        context 'when given a String' do
          it 'sets multiple domains with spaces' do
            setting.asset_proxy_whitelist = 'example.com *.example.com'
            expect(setting.asset_proxy_whitelist).to eq(['example.com', '*.example.com', 'localhost'])
          end

          it 'sets multiple domains with newlines and a space' do
            setting.asset_proxy_whitelist = "example.com\n *.example.com"
            expect(setting.asset_proxy_whitelist).to eq(['example.com', '*.example.com', 'localhost'])
          end

          it 'sets multiple domains with commas' do
            setting.asset_proxy_whitelist = "example.com, *.example.com"
            expect(setting.asset_proxy_whitelist).to eq(['example.com', '*.example.com', 'localhost'])
          end
        end
      end
    end

    context 'static objects external storage' do
      context 'when URL is set' do
        before do
          subject.static_objects_external_storage_url = http
        end

        it { is_expected.not_to allow_value(nil).for(:static_objects_external_storage_auth_token) }
      end
    end

    context 'sourcegraph settings' do
      it 'is invalid if sourcegraph is enabled and no url is provided' do
        allow(subject).to receive(:sourcegraph_enabled).and_return(true)

        expect(subject.sourcegraph_url).to be_nil
        is_expected.to be_invalid
      end
    end
  end

  context 'restrict creating duplicates' do
    let!(:current_settings) { described_class.create_from_defaults }

    it 'returns the current settings' do
      expect(described_class.create_from_defaults).to eq(current_settings)
    end
  end

  describe '#disabled_oauth_sign_in_sources=' do
    before do
      allow(Devise).to receive(:omniauth_providers).and_return([:github])
    end

    it 'removes unknown sources (as strings) from the array' do
      subject.disabled_oauth_sign_in_sources = %w[github test]

      expect(subject).to be_valid
      expect(subject.disabled_oauth_sign_in_sources).to eq ['github']
    end

    it 'removes unknown sources (as symbols) from the array' do
      subject.disabled_oauth_sign_in_sources = %i[github test]

      expect(subject).to be_valid
      expect(subject.disabled_oauth_sign_in_sources).to eq ['github']
    end

    it 'ignores nil' do
      subject.disabled_oauth_sign_in_sources = nil

      expect(subject).to be_valid
      expect(subject.disabled_oauth_sign_in_sources).to be_empty
    end
  end

  describe 'performance bar settings' do
    describe 'performance_bar_allowed_group' do
      context 'with no performance_bar_allowed_group_id saved' do
        it 'returns nil' do
          expect(setting.performance_bar_allowed_group).to be_nil
        end
      end

      context 'with a performance_bar_allowed_group_id saved' do
        let(:group) { create(:group) }

        before do
          setting.update!(performance_bar_allowed_group_id: group.id)
        end

        it 'returns the group' do
          expect(setting.reload.performance_bar_allowed_group).to eq(group)
        end
      end
    end

    describe 'performance_bar_enabled' do
      context 'with the Performance Bar is enabled' do
        let(:group) { create(:group) }

        before do
          setting.update!(performance_bar_allowed_group_id: group.id)
        end

        it 'returns true' do
          expect(setting.reload.performance_bar_enabled).to be_truthy
        end
      end
    end
  end

  context 'diff limit settings' do
    describe '#diff_max_patch_bytes' do
      context 'validations' do
        it { is_expected.to validate_presence_of(:diff_max_patch_bytes) }

        it do
          is_expected.to validate_numericality_of(:diff_max_patch_bytes)
          .only_integer
          .is_greater_than_or_equal_to(Gitlab::Git::Diff::DEFAULT_MAX_PATCH_BYTES)
          .is_less_than_or_equal_to(Gitlab::Git::Diff::MAX_PATCH_BYTES_UPPER_BOUND)
        end
      end
    end
  end

  describe '#sourcegraph_url_is_com?' do
    where(:url, :is_com) do
      'https://sourcegraph.com' | true
      'https://sourcegraph.com/' | true
      'https://www.sourcegraph.com' | true
      'shttps://www.sourcegraph.com' | false
      'https://sourcegraph.example.com/' | false
      'https://sourcegraph.org/' | false
    end

    with_them do
      it 'matches the url with sourcegraph.com' do
        setting.sourcegraph_url = url

        expect(setting.sourcegraph_url_is_com?).to eq(is_com)
      end
    end
  end

  describe 'email_restrictions' do
    context 'when email restrictions are enabled' do
      before do
        subject.email_restrictions_enabled = true
      end

      it 'allows empty email restrictions' do
        subject.email_restrictions = ''

        expect(subject).to be_valid
      end

      it 'accepts valid email restrictions regex' do
        subject.email_restrictions = '\+'

        expect(subject).to be_valid
      end

      it 'does not accept invalid email restrictions regex' do
        subject.email_restrictions = '+'

        expect(subject).not_to be_valid
      end

      it 'sets an error when regex is not valid' do
        subject.email_restrictions = '+'

        expect(subject).not_to be_valid
        expect(subject.errors.messages[:email_restrictions].first).to eq(_('not valid RE2 syntax: no argument for repetition operator: +'))
      end
    end

    context 'when email restrictions are disabled' do
      before do
        subject.email_restrictions_enabled = false
      end

      it 'allows empty email restrictions' do
        subject.email_restrictions = ''

        expect(subject).to be_valid
      end

      it 'invalid regex is not valid' do
        subject.email_restrictions = '+'

        expect(subject).not_to be_valid
      end
    end
  end

  it_behaves_like 'application settings examples'

  describe 'repository_storages_weighted_attributes' do
    it 'returns the keys for repository_storages_weighted' do
      expect(subject.class.repository_storages_weighted_attributes).to eq([:repository_storages_weighted_default])
    end
  end

  it 'does not allow to set weight for non existing storage' do
    setting.repository_storages_weighted = { invalid_storage: 100 }

    expect(setting).not_to be_valid
    expect(setting.errors.messages[:repository_storages_weighted]).to match_array(["can't include: invalid_storage"])
  end
end