1# frozen_string_literal: true
2
3require 'spec_helper'
4
5RSpec.describe IssueLinks::DestroyService do
6  describe '#execute' do
7    let(:project) { create(:project_empty_repo) }
8    let(:user) { create(:user) }
9
10    subject { described_class.new(issue_link, user).execute }
11
12    context 'when successfully removes an issue link' do
13      let(:issue_a) { create(:issue, project: project) }
14      let(:issue_b) { create(:issue, project: project) }
15
16      let!(:issue_link) { create(:issue_link, source: issue_a, target: issue_b) }
17
18      before do
19        project.add_reporter(user)
20      end
21
22      it 'removes related issue' do
23        expect { subject }.to change(IssueLink, :count).from(1).to(0)
24      end
25
26      it 'creates notes' do
27        # Two-way notes creation
28        expect(SystemNoteService).to receive(:unrelate_issue)
29                                       .with(issue_link.source, issue_link.target, user)
30        expect(SystemNoteService).to receive(:unrelate_issue)
31                                       .with(issue_link.target, issue_link.source, user)
32
33        subject
34      end
35
36      it 'returns success message' do
37        is_expected.to eq(message: 'Relation was removed', status: :success)
38      end
39
40      context 'target is an incident' do
41        let(:issue_b) { create(:incident, project: project) }
42
43        it_behaves_like 'an incident management tracked event', :incident_management_incident_unrelate do
44          let(:current_user) { user }
45        end
46      end
47    end
48
49    context 'when failing to remove an issue link' do
50      let(:unauthorized_project) { create(:project) }
51      let(:issue_a) { create(:issue, project: project) }
52      let(:issue_b) { create(:issue, project: unauthorized_project) }
53
54      let!(:issue_link) { create(:issue_link, source: issue_a, target: issue_b) }
55
56      it 'does not remove relation' do
57        expect { subject }.not_to change(IssueLink, :count).from(1)
58      end
59
60      it 'does not create notes' do
61        expect(SystemNoteService).not_to receive(:unrelate_issue)
62      end
63
64      it 'returns error message' do
65        is_expected.to eq(message: 'No Issue Link found', status: :error, http_status: 404)
66      end
67    end
68  end
69end
70