summaryrefslogtreecommitdiff
path: root/spec/models/diff_note_spec.rb
blob: f377b34679cb459ef056cac62cde7d521c9ea0d3 (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
# frozen_string_literal: true

require 'spec_helper'

RSpec.describe DiffNote do
  include RepoHelpers

  let_it_be(:merge_request) { create(:merge_request) }
  let_it_be(:project) { merge_request.project }
  let_it_be(:commit) { project.commit(sample_commit.id) }

  let_it_be(:path) { "files/ruby/popen.rb" }

  let(:diff_refs) { merge_request.diff_refs }
  let!(:position) do
    Gitlab::Diff::Position.new(
      old_path: path,
      new_path: path,
      old_line: nil,
      new_line: 14,
      diff_refs: diff_refs
    )
  end

  let!(:new_position) do
    Gitlab::Diff::Position.new(
      old_path: path,
      new_path: path,
      old_line: 16,
      new_line: 22,
      diff_refs: diff_refs
    )
  end

  subject { create(:diff_note_on_merge_request, project: project, position: position, noteable: merge_request) }

  describe 'validations' do
    it_behaves_like 'a valid diff positionable note' do
      subject { build(:diff_note_on_commit, project: project, commit_id: commit_id, position: position) }
    end

    it "is not valid when noteable is empty" do
      note = build(:diff_note_on_merge_request, project: project, noteable: nil)

      note.valid?

      expect(note.errors[:noteable]).to include("doesn't support new-style diff notes")
    end

    context 'when importing' do
      it "does not check if it's supported" do
        note = build(:diff_note_on_merge_request, project: project, noteable: nil)
        note.importing = true
        note.valid?

        expect(note.errors.full_messages).not_to include(
          "Noteable doesn't support new-style diff notes"
        )
      end
    end
  end

  describe "#position=" do
    context "when provided a string" do
      it "sets the position" do
        subject.position = new_position.to_json

        expect(subject.position).to eq(new_position)
      end
    end

    context "when provided a hash" do
      it "sets the position" do
        subject.position = new_position.to_h

        expect(subject.position).to eq(new_position)
      end
    end

    context "when provided a position object" do
      it "sets the position" do
        subject.position = new_position

        expect(subject.position).to eq(new_position)
      end
    end
  end

  describe "#original_position=" do
    context "when provided a string" do
      it "sets the original position" do
        subject.original_position = new_position.to_json

        expect(subject.original_position).to eq(new_position)
      end
    end

    context "when provided a hash" do
      it "sets the original position" do
        subject.original_position = new_position.to_h

        expect(subject.original_position).to eq(new_position)
      end
    end

    context "when provided a position object" do
      it "sets the original position" do
        subject.original_position = new_position

        expect(subject.original_position).to eq(new_position)
      end
    end
  end

  describe '#create_diff_file callback' do
    context 'merge request' do
      let(:position) do
        Gitlab::Diff::Position.new(old_path: "files/ruby/popen.rb",
                                   new_path: "files/ruby/popen.rb",
                                   old_line: nil,
                                   new_line: 9,
                                   diff_refs: merge_request.diff_refs)
      end

      subject { build(:diff_note_on_merge_request, project: project, position: position, noteable: merge_request) }

      let(:diff_file_from_repository) do
        position.diff_file(project.repository)
      end

      let(:diff_file) do
        diffs = merge_request.diffs
        raw_diff = diffs.diffable.raw_diffs(diffs.diff_options.merge(paths: ['files/ruby/popen.rb'])).first
        Gitlab::Diff::File.new(raw_diff,
                               repository: diffs.project.repository,
                               diff_refs: diffs.diff_refs,
                               fallback_diff_refs: diffs.fallback_diff_refs)
      end

      let(:diff_line) { diff_file.diff_lines.first }

      let(:line_code) { '2f6fcd96b88b36ce98c38da085c795a27d92a3dd_15_14' }

      before do
        allow(subject.position).to receive(:line_code).and_return('2f6fcd96b88b36ce98c38da085c795a27d92a3dd_15_14')
      end

      context 'when diffs are already created' do
        before do
          allow(subject).to receive(:created_at_diff?).and_return(true)
        end

        context 'when diff_file is found in persisted diffs' do
          before do
            allow(merge_request).to receive_message_chain(:diffs, :diff_files, :first).and_return(diff_file)
          end

          context 'when importing' do
            before do
              subject.importing = true
              subject.line_code = line_code
            end

            context 'when diff_line is found in persisted diff_file' do
              before do
                allow(diff_file).to receive(:line_for_position).with(position).and_return(diff_line)
              end

              it 'creates a diff note file' do
                subject.save!
                expect(subject.note_diff_file).to be_present
              end
            end

            context 'when diff_line is not found in persisted diff_file' do
              before do
                allow(diff_file).to receive(:line_for_position).and_return(nil)
              end

              it_behaves_like 'a valid diff note with after commit callback'
            end
          end

          context 'when not importing' do
            context 'when diff_line is not found' do
              before do
                allow(diff_file).to receive(:line_for_position).with(position).and_return(nil)
              end

              it 'raises an error' do
                expect { subject.save! }.to raise_error(::DiffNote::NoteDiffFileCreationError,
                                                       "Failed to find diff line for: #{diff_file.file_path}, "\
                                                       "old_line: #{position.old_line}"\
                                                       ", new_line: #{position.new_line}")
              end
            end

            context 'when diff_line is found' do
              before do
                allow(diff_file).to receive(:line_for_position).with(position).and_return(diff_line)
              end

              it 'creates a diff note file' do
                subject.save!
                expect(subject.reload.note_diff_file).to be_present
              end
            end
          end
        end

        context 'when diff file is not found in persisted diffs' do
          before do
            allow_next_instance_of(Gitlab::Diff::FileCollection::MergeRequestDiff) do |merge_request_diff|
              allow(merge_request_diff).to receive(:diff_files).and_return([])
            end
          end

          it_behaves_like 'a valid diff note with after commit callback'
        end
      end

      context 'when diffs are not already created' do
        before do
          allow(subject).to receive(:created_at_diff?).and_return(false)
        end

        it_behaves_like 'a valid diff note with after commit callback'
      end

      it 'does not create diff note file if it is a reply' do
        diff_note = create(:diff_note_on_merge_request, project: project, noteable: merge_request)

        expect { create(:diff_note_on_merge_request, noteable: merge_request, in_reply_to: diff_note) }
          .not_to change(NoteDiffFile, :count)
      end
    end

    context 'commit' do
      let!(:diff_note) { create(:diff_note_on_commit, project: project) }

      it 'creates a diff note file' do
        expect(diff_note.reload.note_diff_file).to be_present
      end

      it 'does not create diff note file if it is a reply' do
        expect { create(:diff_note_on_commit, in_reply_to: diff_note) }
          .not_to change(NoteDiffFile, :count)
      end
    end
  end

  describe '#diff_file', :clean_gitlab_redis_shared_state do
    context 'when note_diff_file association exists' do
      it 'returns persisted diff file data' do
        diff_file = subject.diff_file

        expect(diff_file.diff.to_hash.with_indifferent_access)
          .to include(subject.note_diff_file.to_hash)
      end
    end

    context 'when the discussion was created in the diff' do
      context 'when file_identifier_hash is disabled' do
        before do
          stub_feature_flags(file_identifier_hash: false)
        end

        it 'returns correct diff file' do
          diff_file = subject.diff_file

          expect(diff_file.old_path).to eq(position.old_path)
          expect(diff_file.new_path).to eq(position.new_path)
          expect(diff_file.diff_refs).to eq(position.diff_refs)
        end
      end

      context 'when file_identifier_hash is enabled' do
        before do
          stub_feature_flags(file_identifier_hash: true)
        end

        it 'returns correct diff file' do
          diff_file = subject.diff_file

          expect(diff_file.old_path).to eq(position.old_path)
          expect(diff_file.new_path).to eq(position.new_path)
          expect(diff_file.diff_refs).to eq(position.diff_refs)
        end
      end
    end

    context 'when discussion is outdated or not created in the diff' do
      let(:diff_refs) { project.commit(sample_commit.id).diff_refs }
      let(:position) do
        Gitlab::Diff::Position.new(
          old_path: "files/ruby/popen.rb",
          new_path: "files/ruby/popen.rb",
          old_line: nil,
          new_line: 14,
          diff_refs: diff_refs
        )
      end

      it 'returns the correct diff file' do
        diff_file = subject.diff_file

        expect(diff_file.old_path).to eq(position.old_path)
        expect(diff_file.new_path).to eq(position.new_path)
        expect(diff_file.diff_refs).to eq(position.diff_refs)
      end
    end

    context 'note diff file creation enqueuing' do
      it 'enqueues CreateNoteDiffFileWorker if it is the first note of a discussion' do
        subject.note_diff_file.destroy!

        expect(CreateNoteDiffFileWorker).to receive(:perform_async).with(subject.id)

        subject.reload.diff_file
      end

      it 'does not enqueues CreateNoteDiffFileWorker if not first note of a discussion' do
        mr = create(:merge_request)
        diff_note = create(:diff_note_on_merge_request, project: mr.project, noteable: mr)
        reply_diff_note = create(:diff_note_on_merge_request, in_reply_to: diff_note)

        expect(CreateNoteDiffFileWorker).not_to receive(:perform_async).with(reply_diff_note.id)

        reply_diff_note.reload.diff_file
      end
    end

    context 'when noteable is a Design' do
      it 'does not return a diff file' do
        diff_note = create(:diff_note_on_design)

        expect(diff_note.diff_file).to be_nil
      end
    end
  end

  describe '#latest_diff_file' do
    context 'when noteable is a Design' do
      it 'does not return a diff file' do
        diff_note = create(:diff_note_on_design)

        expect(diff_note.latest_diff_file).to be_nil
      end
    end
  end

  describe "#diff_line" do
    it "returns the correct diff line" do
      diff_line = subject.diff_line

      expect(diff_line.added?).to be true
      expect(diff_line.new_line).to eq(position.formatter.new_line)
      expect(diff_line.text).to eq("+    vars = {")
    end
  end

  describe "#line_code" do
    it "returns the correct line code" do
      line_code = Gitlab::Git.diff_line_code(position.file_path, position.formatter.new_line, 15)

      expect(subject.line_code).to eq(line_code)
    end
  end

  describe "#active?" do
    context "when noteable is a commit" do
      subject { build(:diff_note_on_commit, project: project, position: position) }

      it "returns true" do
        expect(subject.active?).to be true
      end
    end

    context "when noteable is a merge request" do
      context "when the merge request's diff refs match that of the diff note" do
        it "returns true" do
          expect(subject.active?).to be true
        end
      end

      context "when the merge request's diff refs don't match that of the diff note" do
        before do
          allow(subject.noteable).to receive(:diff_refs).and_return(commit.diff_refs)
        end

        it "returns false" do
          expect(subject.active?).to be false
        end
      end
    end
  end

  describe "creation" do
    describe "updating of position" do
      context "when noteable is a commit" do
        let(:diff_refs) { commit.diff_refs }

        subject { create(:diff_note_on_commit, project: project, position: position, commit_id: commit.id) }

        it "doesn't update the position" do
          is_expected.to have_attributes(original_position: position,
                                         position: position)
        end
      end

      context "when noteable is a merge request" do
        context "when the note is active" do
          it "doesn't update the position" do
            expect(subject.original_position).to eq(position)
            expect(subject.position).to eq(position)
          end
        end

        context "when the note is outdated" do
          before do
            allow(merge_request).to receive(:diff_refs).and_return(commit.diff_refs)
          end

          it "updates the position" do
            expect(subject.original_position).to eq(position)
            expect(subject.position).not_to eq(position)
          end
        end
      end
    end
  end

  describe "#discussion_id" do
    let(:note) { create(:diff_note_on_merge_request) }

    context "when it is newly created" do
      it "has a discussion id" do
        expect(note.discussion_id).not_to be_nil
        expect(note.discussion_id).to match(/\A\h{40}\z/)
      end
    end

    context "when it didn't store a discussion id before" do
      before do
        note.update_column(:discussion_id, nil)
      end

      it "has a discussion id" do
        # The discussion_id is set in `after_initialize`, so `reload` won't work
        reloaded_note = Note.find(note.id)

        expect(reloaded_note.discussion_id).not_to be_nil
        expect(reloaded_note.discussion_id).to match(/\A\h{40}\z/)
      end
    end
  end

  describe '#created_at_diff?' do
    let(:diff_refs) { project.commit(sample_commit.id).diff_refs }
    let(:position) do
      Gitlab::Diff::Position.new(
        old_path: "files/ruby/popen.rb",
        new_path: "files/ruby/popen.rb",
        old_line: nil,
        new_line: 14,
        diff_refs: diff_refs
      )
    end

    context "when noteable is a commit" do
      subject { build(:diff_note_on_commit, project: project, position: position) }

      it "returns true" do
        expect(subject.created_at_diff?(diff_refs)).to be true
      end
    end

    context "when noteable is a merge request" do
      context "when the diff refs match the original one of the diff note" do
        it "returns true" do
          expect(subject.created_at_diff?(diff_refs)).to be true
        end
      end

      context "when the diff refs don't match the original one of the diff note" do
        it "returns false" do
          expect(subject.created_at_diff?(merge_request.diff_refs)).to be false
        end
      end
    end
  end

  describe '#supports_suggestion?' do
    context 'when noteable does not exist' do
      it 'returns false' do
        allow(subject).to receive(:noteable) { nil }

        expect(subject.supports_suggestion?).to be(false)
      end
    end

    context 'when noteable does not support suggestions' do
      it 'returns false' do
        allow(subject.noteable).to receive(:supports_suggestion?) { false }

        expect(subject.supports_suggestion?).to be(false)
      end
    end

    context 'when line is not suggestible' do
      it 'returns false' do
        allow_next_instance_of(Gitlab::Diff::Line) do |instance|
          allow(instance).to receive(:suggestible?) { false }
        end

        expect(subject.supports_suggestion?).to be(false)
      end
    end
  end

  describe '#banzai_render_context' do
    let(:note) { create(:diff_note_on_merge_request) }

    it 'includes expected context' do
      context = note.banzai_render_context(:note)

      expect(context).to include(suggestions_filter_enabled: true, noteable: note.noteable, project: note.project)
    end
  end

  describe "image diff notes" do
    subject { build(:image_diff_note_on_merge_request, project: project, noteable: merge_request) }

    describe "validations" do
      it { is_expected.not_to validate_presence_of(:line_code) }

      it "does not validate diff line" do
        diff_line = subject.diff_line

        expect(diff_line).to be nil
        expect(subject).to be_valid
      end

      it "does not update the position" do
        expect(subject).not_to receive(:update_position)

        subject.save!
      end
    end

    it "returns true for on_image?" do
      expect(subject.on_image?).to be_truthy
    end
  end

  describe '#to_ability_name' do
    subject { described_class.new.to_ability_name }

    it { is_expected.to eq('note') }
  end

  describe '#shas' do
    it 'returns list of SHAs based on original_position' do
      expect(subject.shas).to match_array([
        position.base_sha,
        position.start_sha,
        position.head_sha
      ])
    end

    context 'when position changes' do
      before do
        subject.position = new_position
      end

      it 'includes the new position SHAs' do
        expect(subject.shas).to match_array([
          position.base_sha,
          position.start_sha,
          position.head_sha,
          new_position.base_sha,
          new_position.start_sha,
          new_position.head_sha
        ])
      end
    end
  end
end