/ee/spec/lib/ee/gitlab/background_migration/remove_duplicated_cs_findings_without_vulnerability_id_spec.rb

# frozen_string_literal: true

require 'spec_helper'

RSpec.describe Gitlab::BackgroundMigration::RemoveDuplicatedCsFindingsWithoutVulnerabilityId, :migration, schema: 20200917135802 do
  let(:migration) { 'RemoveDuplicatedCsFindingsWithoutVulnerabilityId'}
  let(:namespaces) { table(:namespaces) }
  let(:notes) { table(:notes) }
  let(:group) { namespaces.create!(name: 'foo', path: 'foo') }
  let(:projects) { table(:projects) }
  let(:findings) { table(:vulnerability_occurrences) }
  let(:scanners) { table(:vulnerability_scanners) }

  let(:identifiers) { table(:vulnerability_identifiers) }
  let(:finding_identifiers) { table(:vulnerability_occurrence_identifiers) }

  let!(:project) { projects.create!(id: 12058473, namespace_id: group.id, name: 'gitlab', path: 'gitlab') }
  let!(:scanner) do
    scanners.create!(id: 6, project_id: project.id, external_id: 'clair', name: 'Security Scanner')
  end

  it 'removes duplicate findings and vulnerabilities' do
    allow(::Gitlab).to receive(:com?).and_return(true)

    ids = [231411, 231412, 231413, 231500, 231600, 231700, 231800]

    fingerprints = %w(
      6c871440eb9f7618b9aef25e5246acddff6ed7a1
      9d1a47927875f1aee1e2b9f16c25a8ff7586f1a6
      d7da2cc109c18d890ab239e833524d451cc45246
      6c871440eb9f7618b9aef25e5246acddff6ed7a1
      9d1a47927875f1aee1e2b9f16c25a8ff7586f1a6
      d7da2cc109c18d890ab239e833524d451cc45246
      d7da2cc109c18d890ab239e833524d453cd45246
    )

    expected_fingerprints = %w(
      6c871440eb9f7618b9aef25e5246acddff6ed7a1
      9d1a47927875f1aee1e2b9f16c25a8ff7586f1a6
      d7da2cc109c18d890ab239e833524d451cc45246
      d7da2cc109c18d890ab239e833524d453cd45246
    )

    7.times.each { |x| identifiers.create!(vulnerability_identifer_params(x, project.id)) }

    3.times.each { |x| findings.create!(finding_params(x, project.id).merge({ id: ids[x], location_fingerprint: fingerprints[x], vulnerability_id: nil })) }
    findings.create!(finding_params(0, project.id).merge({ id: ids[3], location_fingerprint: Gitlab::Database::ShaAttribute.new.serialize(fingerprints[3]).to_s, vulnerability_id: nil }))
    findings.create!(finding_params(1, project.id).merge({ id: ids[4], location_fingerprint: Gitlab::Database::ShaAttribute.new.serialize(fingerprints[4]).to_s, vulnerability_id: nil }))
    findings.create!(finding_params(2, project.id).merge({ id: ids[5], location_fingerprint: Gitlab::Database::ShaAttribute.new.serialize(fingerprints[5]).to_s, vulnerability_id: nil }))
    findings.create!(finding_params(3, project.id).merge({ id: ids[6], location_fingerprint: Gitlab::Database::ShaAttribute.new.serialize(fingerprints[6]).to_s, vulnerability_id: nil }))

    7.times.each { |x| finding_identifiers.create!(occurrence_id: ids[x], identifier_id: x ) }

    expect(finding_identifiers.all.count). to eq(7)

    described_class.new.perform(231411, 231413)

    expect(findings.ids).to match_array([231411, 231412, 231413, 231800])
    expect(findings.where(report_type: 2).count). to eq(4)
    expect(finding_identifiers.all.count). to eq(4)

    location_fingerprints = findings.pluck(:location_fingerprint).flat_map { |x| Gitlab::Database::ShaAttribute.new.deserialize(x) }

    expect(location_fingerprints).to match_array(expected_fingerprints)
  end

  def vulnerability_identifer_params(id, project_id)
    {
      id: id,
      project_id: project_id,
      fingerprint: 'd432c2ad2953e8bd587a3a43b3ce309b5b0154c' + id.to_s,
      external_type: 'SECURITY_ID',
      external_id: 'SECURITY_0',
      name: 'SECURITY_IDENTIFIER 0'
    }
  end

  def finding_params(primary_identifier_id, project_id)
    attrs = attributes_for(:vulnerabilities_finding) # rubocop: disable RSpec/FactoriesInMigrationSpecs
    {
      severity: 0,
      confidence: 5,
      report_type: 2,
      project_id: project_id,
      scanner_id: 6,
      primary_identifier_id: primary_identifier_id,
      project_fingerprint: attrs[:project_fingerprint],
      location_fingerprint: Digest::SHA1.hexdigest(SecureRandom.hex(10)),
      uuid: SecureRandom.uuid,
      name: attrs[:name],
      metadata_version: '1.3',
      raw_metadata: attrs[:raw_metadata]
    }
  end

  def create_identifier(number_of)
    (1..number_of).each do |identifier_id|
      identifiers.create!(id: identifier_id,
                          project_id: 123,
                          fingerprint: 'd432c2ad2953e8bd587a3a43b3ce309b5b0154c' + identifier_id.to_s,
                          external_type: 'SECURITY_ID',
                          external_id: 'SECURITY_0',
                          name: 'SECURITY_IDENTIFIER 0')
    end
  end
end