1 files changed, 175 insertions, 0 deletions
diff --git a/spec/lib/gitlab/background_migration/remove_occurrence_pipelines_and_duplicate_vulnerabilities_findings_spec.rb b/spec/lib/gitlab/background_migration/remove_occurrence_pipelines_and_duplicate_vulnerabilities_findings_spec.rb
new file mode 100644
index 00000000000..28aa9efde4f
--- /dev/null
+++ b/spec/lib/gitlab/background_migration/remove_occurrence_pipelines_and_duplicate_vulnerabilities_findings_spec.rb
@@ -0,0 +1,175 @@
+# frozen_string_literal: true
+require 'spec_helper'
+
+RSpec.describe Gitlab::BackgroundMigration::RemoveOccurrencePipelinesAndDuplicateVulnerabilitiesFindings do
+  let(:namespace) { table(:namespaces).create!(name: 'user', path: 'user') }
+  let(:users) { table(:users) }
+  let(:user) { create_user! }
+  let(:project) { table(:projects).create!(id: 14219619, namespace_id: namespace.id) }
+  let(:scanners) { table(:vulnerability_scanners) }
+  let!(:scanner1) { scanners.create!(project_id: project.id, external_id: 'test 1', name: 'test scanner 1') }
+  let!(:scanner2) { scanners.create!(project_id: project.id, external_id: 'test 2', name: 'test scanner 2') }
+  let!(:scanner3) { scanners.create!(project_id: project.id, external_id: 'test 3', name: 'test scanner 3') }
+  let!(:unrelated_scanner) { scanners.create!(project_id: project.id, external_id: 'unreleated_scanner', name: 'unrelated scanner') }
+  let(:vulnerabilities) { table(:vulnerabilities) }
+  let(:vulnerability_findings) { table(:vulnerability_occurrences) }
+  let(:vulnerability_finding_pipelines) { table(:vulnerability_occurrence_pipelines) }
+  let(:vulnerability_identifiers) { table(:vulnerability_identifiers) }
+  let(:vulnerability_identifier) do
+    vulnerability_identifiers.create!(
+      id: 1244459,
+      project_id: project.id,
+      external_type: 'vulnerability-identifier',
+      external_id: 'vulnerability-identifier',
+      fingerprint: '0a203e8cd5260a1948edbedc76c7cb91ad6a2e45',
+      name: 'vulnerability identifier')
+  end
+
+  let!(:vulnerability_for_first_duplicate) do
+    create_vulnerability!(
+      project_id: project.id,
+      author_id: user.id
+    )
+  end
+
+  let!(:first_finding_duplicate) do
+    create_finding!(
+      id: 5606961,
+      uuid: "bd95c085-71aa-51d7-9bb6-08ae669c262e",
+      vulnerability_id: vulnerability_for_first_duplicate.id,
+      report_type: 0,
+      location_fingerprint: '00049d5119c2cb3bfb3d1ee1f6e031fe925aed75',
+      primary_identifier_id: vulnerability_identifier.id,
+      scanner_id: scanner1.id,
+      project_id: project.id
+    )
+  end
+
+  let!(:vulnerability_for_second_duplicate) do
+    create_vulnerability!(
+      project_id: project.id,
+      author_id: user.id
+    )
+  end
+
+  let!(:second_finding_duplicate) do
+    create_finding!(
+      id: 8765432,
+      uuid: "5b714f58-1176-5b26-8fd5-e11dfcb031b5",
+      vulnerability_id: vulnerability_for_second_duplicate.id,
+      report_type: 0,
+      location_fingerprint: '00049d5119c2cb3bfb3d1ee1f6e031fe925aed75',
+      primary_identifier_id: vulnerability_identifier.id,
+      scanner_id: scanner2.id,
+      project_id: project.id
+    )
+  end
+
+  let!(:vulnerability_for_third_duplicate) do
+    create_vulnerability!(
+      project_id: project.id,
+      author_id: user.id
+    )
+  end
+
+  let!(:third_finding_duplicate) do
+    create_finding!(
+      id: 8832995,
+      uuid: "cfe435fa-b25b-5199-a56d-7b007cc9e2d4",
+      vulnerability_id: vulnerability_for_third_duplicate.id,
+      report_type: 0,
+      location_fingerprint: '00049d5119c2cb3bfb3d1ee1f6e031fe925aed75',
+      primary_identifier_id: vulnerability_identifier.id,
+      scanner_id: scanner3.id,
+      project_id: project.id
+    )
+  end
+
+  let!(:unrelated_finding) do
+    create_finding!(
+      id: 9999999,
+      uuid: "unreleated_finding",
+      vulnerability_id: nil,
+      report_type: 1,
+      location_fingerprint: 'random_location_fingerprint',
+      primary_identifier_id: vulnerability_identifier.id,
+      scanner_id: unrelated_scanner.id,
+      project_id: project.id
+    )
+  end
+
+  subject { described_class.new.perform(first_finding_duplicate.id, unrelated_finding.id) }
+
+  before do
+    4.times do
+      create_finding_pipeline!(project_id: project.id, finding_id: first_finding_duplicate.id)
+      create_finding_pipeline!(project_id: project.id, finding_id: second_finding_duplicate.id)
+      create_finding_pipeline!(project_id: project.id, finding_id: third_finding_duplicate.id)
+      create_finding_pipeline!(project_id: project.id, finding_id: unrelated_finding.id)
+    end
+  end
+
+  it 'removes Vulnerabilities::OccurrencePipelines for matching Vulnerabilities::Finding' do
+    expect(vulnerability_findings.count).to eq(4)
+    expect(vulnerability_finding_pipelines.count).to eq(16)
+
+    expect { subject }.to change(vulnerability_finding_pipelines, :count).from(16).to(8)
+      .and change(vulnerability_findings, :count).from(4).to(2)
+  end
+
+  private
+
+  def create_vulnerability!(project_id:, author_id:, title: 'test', severity: 7, confidence: 7, report_type: 0)
+    vulnerabilities.create!(
+      project_id: project_id,
+      author_id: author_id,
+      title: title,
+      severity: severity,
+      confidence: confidence,
+      report_type: report_type
+    )
+  end
+
+  # rubocop:disable Metrics/ParameterLists
+  def create_finding!(
+    id: nil,
+    vulnerability_id:, project_id:, scanner_id:, primary_identifier_id:,
+                      name: "test", severity: 7, confidence: 7, report_type: 0,
+                      project_fingerprint: '123qweasdzxc', location_fingerprint: 'test',
+                      metadata_version: 'test', raw_metadata: 'test', uuid: 'test')
+    params = {
+      vulnerability_id: vulnerability_id,
+      project_id: project_id,
+      name: name,
+      severity: severity,
+      confidence: confidence,
+      report_type: report_type,
+      project_fingerprint: project_fingerprint,
+      scanner_id: scanner_id,
+      primary_identifier_id: vulnerability_identifier.id,
+      location_fingerprint: location_fingerprint,
+      metadata_version: metadata_version,
+      raw_metadata: raw_metadata,
+      uuid: uuid
+    }
+    params[:id] = id unless id.nil?
+    vulnerability_findings.create!(params)
+  end
+  # rubocop:enable Metrics/ParameterLists
+
+  def create_user!(name: "Example User", email: "user@example.com", user_type: nil, created_at: Time.zone.now, confirmed_at: Time.zone.now)
+    table(:users).create!(
+      name: name,
+      email: email,
+      username: name,
+      projects_limit: 0,
+      user_type: user_type,
+      confirmed_at: confirmed_at
+    )
+  end
+
+  def create_finding_pipeline!(project_id:, finding_id:)
+    pipeline = table(:ci_pipelines).create!(project_id: project_id)
+    vulnerability_finding_pipelines.create!(pipeline_id: pipeline.id, occurrence_id: finding_id)
+  end
+end