# frozen_string_literal: true

require 'spec_helper'

RSpec.describe Ci::Pipeline, :mailer, factory_default: :keep, feature_category: :continuous_integration do
  include ProjectForksHelper
  include StubRequests
  include Ci::SourcePipelineHelpers

  let_it_be(:user) { create(:user, :public_email) }
  let_it_be(:namespace) { create_default(:namespace).freeze }
  let_it_be(:project) { create_default(:project, :repository).freeze }

  it 'paginates 15 pipelines per page' do
    expect(described_class.default_per_page).to eq(15)
  end

  it_behaves_like 'having unique enum values'

  it { is_expected.to belong_to(:project) }
  it { is_expected.to belong_to(:user) }
  it { is_expected.to belong_to(:auto_canceled_by).class_name('Ci::Pipeline').inverse_of(:auto_canceled_pipelines) }
  it { is_expected.to belong_to(:pipeline_schedule) }
  it { is_expected.to belong_to(:merge_request) }
  it { is_expected.to belong_to(:external_pull_request) }

  it { is_expected.to have_many(:statuses) }
  it { is_expected.to have_many(:trigger_requests).with_foreign_key(:commit_id).inverse_of(:pipeline) }
  it { is_expected.to have_many(:variables) }
  it { is_expected.to have_many(:builds) }

  it do
    is_expected.to have_many(:statuses_order_id_desc)
      .class_name('CommitStatus').with_foreign_key(:commit_id).inverse_of(:pipeline)
  end

  it { is_expected.to have_many(:bridges) }
  it { is_expected.to have_many(:job_artifacts).through(:builds) }
  it { is_expected.to have_many(:build_trace_chunks).through(:builds) }

  it { is_expected.to have_many(:triggered_pipelines) }
  it { is_expected.to have_many(:pipeline_artifacts) }

  it do
    is_expected.to have_many(:failed_builds).class_name('Ci::Build')
      .with_foreign_key(:commit_id).inverse_of(:pipeline)
  end

  it do
    is_expected.to have_many(:cancelable_statuses).class_name('CommitStatus')
      .with_foreign_key(:commit_id).inverse_of(:pipeline)
  end

  it do
    is_expected.to have_many(:auto_canceled_pipelines).class_name('Ci::Pipeline')
      .with_foreign_key(:auto_canceled_by_id).inverse_of(:auto_canceled_by)
  end

  it do
    is_expected.to have_many(:auto_canceled_jobs).class_name('CommitStatus')
      .with_foreign_key(:auto_canceled_by_id).inverse_of(:auto_canceled_by)
  end

  it do
    is_expected.to have_many(:sourced_pipelines).class_name('Ci::Sources::Pipeline')
      .with_foreign_key(:source_pipeline_id).inverse_of(:source_pipeline)
  end

  it { is_expected.to have_one(:source_pipeline) }
  it { is_expected.to have_one(:chat_data) }
  it { is_expected.to have_one(:triggered_by_pipeline) }
  it { is_expected.to have_one(:source_job) }
  it { is_expected.to have_one(:pipeline_config) }
  it { is_expected.to have_one(:pipeline_metadata) }

  it do
    is_expected.to have_many(:daily_build_group_report_results).class_name('Ci::DailyBuildGroupReportResult')
      .with_foreign_key(:last_pipeline_id).inverse_of(:last_pipeline)
  end

  it { is_expected.to have_many(:latest_builds_report_results).through(:latest_builds).source(:report_results) }

  it { is_expected.to respond_to :git_author_name }
  it { is_expected.to respond_to :git_author_email }
  it { is_expected.to respond_to :git_author_full_text }
  it { is_expected.to respond_to :short_sha }
  it { is_expected.to delegate_method(:full_path).to(:project).with_prefix }
  it { is_expected.to delegate_method(:name).to(:pipeline_metadata).allow_nil }

  describe 'validations' do
    it { is_expected.to validate_presence_of(:sha) }
    it { is_expected.to validate_presence_of(:status) }
  end

  describe 'associations' do
    let_it_be(:pipeline) { create(:ci_empty_pipeline, :created) }

    it 'has a bidirectional relationship with projects' do
      expect(described_class.reflect_on_association(:project).has_inverse?).to eq(:all_pipelines)
      expect(Project.reflect_on_association(:all_pipelines).has_inverse?).to eq(:project)
      expect(Project.reflect_on_association(:ci_pipelines).has_inverse?).to eq(:project)
    end

    describe '#latest_builds' do
      it 'has a one to many relationship with its latest builds' do
        _old_build = create(:ci_build, :retried, pipeline: pipeline)
        latest_build = create(:ci_build, :expired, pipeline: pipeline)

        expect(pipeline.latest_builds).to contain_exactly(latest_build)
      end
    end

    describe '#latest_successful_builds' do
      it 'has a one to many relationship with its latest successful builds' do
        _old_build = create(:ci_build, :retried, pipeline: pipeline)
        _expired_build = create(:ci_build, :expired, pipeline: pipeline)
        _failed_builds = create_list(:ci_build, 2, :failed, pipeline: pipeline)
        successful_builds = create_list(:ci_build, 2, :success, pipeline: pipeline)

        expect(pipeline.latest_successful_builds).to contain_exactly(successful_builds.first, successful_builds.second)
      end
    end

    describe '#downloadable_artifacts' do
      let_it_be(:build) { create(:ci_build, pipeline: pipeline) }
      let_it_be(:downloadable_artifact) { create(:ci_job_artifact, :codequality, job: build) }
      let_it_be(:expired_artifact) { create(:ci_job_artifact, :junit, :expired, job: build) }
      let_it_be(:undownloadable_artifact) { create(:ci_job_artifact, :trace, job: build) }

      context 'when artifacts are locked' do
        it 'returns downloadable artifacts including locked artifacts' do
          expect(pipeline.downloadable_artifacts).to contain_exactly(downloadable_artifact, expired_artifact)
        end
      end

      context 'when artifacts are unlocked' do
        it 'returns only downloadable artifacts not expired' do
          expired_artifact.job.pipeline.unlocked!

          expect(pipeline.reload.downloadable_artifacts).to contain_exactly(downloadable_artifact)
        end
      end
    end
  end

  describe 'state machine transitions' do
    context 'from failed to success' do
      let_it_be(:pipeline) { create(:ci_empty_pipeline, :failed) }

      it 'schedules CoverageReportWorker' do
        expect(Ci::PipelineArtifacts::CoverageReportWorker).to receive(:perform_async).with(pipeline.id)

        pipeline.succeed!
      end
    end
  end

  describe 'pipeline age metric' do
    let_it_be(:pipeline) { create(:ci_empty_pipeline, :created) }

    let(:pipeline_age_histogram) do
      ::Gitlab::Ci::Pipeline::Metrics.pipeline_age_histogram
    end

    context 'when pipeline age histogram is enabled' do
      before do
        stub_feature_flags(ci_pipeline_age_histogram: true)
      end

      it 'observes pipeline age' do
        expect(pipeline_age_histogram).to receive(:observe)

        described_class.find(pipeline.id)
      end
    end

    context 'when pipeline age histogram is disabled' do
      before do
        stub_feature_flags(ci_pipeline_age_histogram: false)
      end

      it 'observes pipeline age' do
        expect(pipeline_age_histogram).not_to receive(:observe)

        described_class.find(pipeline.id)
      end
    end
  end

  describe '#set_status' do
    let(:pipeline) { build(:ci_empty_pipeline, :created) }

    where(:from_status, :to_status) do
      from_status_names = described_class.state_machines[:status].states.map(&:name)
      to_status_names = from_status_names - [:created] # we never want to transition into created

      from_status_names.product(to_status_names)
    end

    with_them do
      it do
        pipeline.status = from_status.to_s

        if from_status != to_status || success_to_success?
          expect(pipeline.set_status(to_status.to_s))
            .to eq(true)
        else
          expect(pipeline.set_status(to_status.to_s))
            .to eq(false), "loopback transitions are not allowed"
        end
      end

      private

      def success_to_success?
        from_status == :success && to_status == :success
      end
    end
  end

  describe '.processables' do
    let_it_be(:pipeline) { create(:ci_empty_pipeline, :created) }

    before do
      create(:ci_build, name: 'build', pipeline: pipeline)
      create(:ci_bridge, name: 'bridge', pipeline: pipeline)
      create(:commit_status, name: 'commit status', pipeline: pipeline)
      create(:generic_commit_status, name: 'generic status', pipeline: pipeline)
    end

    it 'has an association with processable CI/CD entities' do
      pipeline.processables.pluck('name').yield_self do |processables|
        expect(processables).to match_array %w[build bridge]
      end
    end

    it 'makes it possible to append a new processable' do
      pipeline.processables << build(:ci_bridge)

      pipeline.save!

      expect(pipeline.processables.reload.count).to eq 3
    end
  end

  describe '.for_iid' do
    subject { described_class.for_iid(iid) }

    let(:iid) { '1234' }
    let!(:pipeline) { create(:ci_pipeline, iid: '1234') }

    it 'returns the pipeline' do
      is_expected.to contain_exactly(pipeline)
    end
  end

  describe '.for_name' do
    subject { described_class.for_name(name) }

    let_it_be(:pipeline1) { create(:ci_pipeline, name: 'Build pipeline') }
    let_it_be(:pipeline2) { create(:ci_pipeline, name: 'Chatops pipeline') }

    context 'when name exists' do
      let(:name) { 'Build pipeline' }

      it 'performs exact compare' do
        is_expected.to contain_exactly(pipeline1)
      end
    end

    context 'when name does not exist' do
      let(:name) { 'absent-name' }

      it 'returns empty' do
        is_expected.to be_empty
      end
    end
  end

  describe '.created_after' do
    let_it_be(:old_pipeline) { create(:ci_pipeline, created_at: 1.week.ago) }
    let_it_be(:pipeline) { create(:ci_pipeline) }

    subject { described_class.created_after(1.day.ago) }

    it 'returns the pipeline' do
      is_expected.to contain_exactly(pipeline)
    end
  end

  describe '.created_before_id' do
    let_it_be(:pipeline) { create(:ci_pipeline) }
    let_it_be(:new_pipeline) { create(:ci_pipeline) }

    subject { described_class.created_before_id(new_pipeline.id) }

    it 'returns the pipeline' do
      is_expected.to contain_exactly(pipeline)
    end
  end

  describe '.for_sha' do
    subject { described_class.for_sha(sha) }

    let(:sha) { 'abc' }

    let_it_be(:pipeline) { create(:ci_pipeline, sha: 'abc') }

    it 'returns the pipeline' do
      is_expected.to contain_exactly(pipeline)
    end

    context 'when argument is array' do
      let(:sha) { %w[abc def] }
      let!(:pipeline_2) { create(:ci_pipeline, sha: 'def') }

      it 'returns the pipelines' do
        is_expected.to contain_exactly(pipeline, pipeline_2)
      end
    end

    context 'when sha is empty' do
      let(:sha) { nil }

      it 'does not return anything' do
        is_expected.to be_empty
      end
    end
  end

  describe '.where_not_sha' do
    let_it_be(:pipeline) { create(:ci_pipeline, sha: 'abcx') }
    let_it_be(:pipeline_2) { create(:ci_pipeline, sha: 'abc') }

    let(:sha) { 'abc' }

    subject { described_class.where_not_sha(sha) }

    it 'returns the pipeline without the specified sha' do
      is_expected.to contain_exactly(pipeline)
    end

    context 'when argument is array' do
      let(:sha) { %w[abc abcx] }

      it 'returns the pipelines without the specified shas' do
        pipeline_3 = create(:ci_pipeline, sha: 'abcy')
        is_expected.to contain_exactly(pipeline_3)
      end
    end
  end

  describe '.for_source_sha' do
    subject { described_class.for_source_sha(source_sha) }

    let(:source_sha) { 'abc' }

    let_it_be(:pipeline) { create(:ci_pipeline, source_sha: 'abc') }

    it 'returns the pipeline' do
      is_expected.to contain_exactly(pipeline)
    end

    context 'when argument is array' do
      let(:source_sha) { %w[abc def] }
      let!(:pipeline_2) { create(:ci_pipeline, source_sha: 'def') }

      it 'returns the pipelines' do
        is_expected.to contain_exactly(pipeline, pipeline_2)
      end
    end

    context 'when source_sha is empty' do
      let(:source_sha) { nil }

      it 'does not return anything' do
        is_expected.to be_empty
      end
    end
  end

  describe '.for_sha_or_source_sha' do
    subject { described_class.for_sha_or_source_sha(sha) }

    let(:sha) { 'abc' }

    context 'when sha is matched' do
      let!(:pipeline) { create(:ci_pipeline, sha: sha) }

      it 'returns the pipeline' do
        is_expected.to contain_exactly(pipeline)
      end
    end

    context 'when source sha is matched' do
      let!(:pipeline) { create(:ci_pipeline, source_sha: sha) }

      it 'returns the pipeline' do
        is_expected.to contain_exactly(pipeline)
      end
    end

    context 'when both sha and source sha are not matched' do
      let!(:pipeline) { create(:ci_pipeline, sha: 'bcd', source_sha: 'bcd') }

      it 'does not return anything' do
        is_expected.to be_empty
      end
    end
  end

  describe '.for_branch' do
    subject { described_class.for_branch(branch) }

    let(:branch) { 'master' }

    let_it_be(:pipeline) { create(:ci_pipeline, ref: 'master') }

    it 'returns the pipeline' do
      is_expected.to contain_exactly(pipeline)
    end

    context 'with tag pipeline' do
      let(:branch) { 'v1.0' }
      let!(:pipeline) { create(:ci_pipeline, ref: 'v1.0', tag: true) }

      it 'returns nothing' do
        is_expected.to be_empty
      end
    end
  end

  describe '.with_pipeline_source' do
    subject { described_class.with_pipeline_source(source) }

    let(:source) { 'web' }

    let_it_be(:push_pipeline)   { create(:ci_pipeline, source: :push) }
    let_it_be(:web_pipeline)    { create(:ci_pipeline, source: :web) }
    let_it_be(:api_pipeline)    { create(:ci_pipeline, source: :api) }

    it 'contains pipelines created due to specified source' do
      expect(subject).to contain_exactly(web_pipeline)
    end
  end

  describe '.ci_sources' do
    subject { described_class.ci_sources }

    let(:push_pipeline)   { build(:ci_pipeline, source: :push) }
    let(:web_pipeline)    { build(:ci_pipeline, source: :web) }
    let(:api_pipeline)    { build(:ci_pipeline, source: :api) }
    let(:webide_pipeline) { build(:ci_pipeline, source: :webide) }
    let(:child_pipeline)  { build(:ci_pipeline, source: :parent_pipeline) }
    let(:pipelines) { [push_pipeline, web_pipeline, api_pipeline, webide_pipeline, child_pipeline] }

    it 'contains pipelines having CI only sources' do
      pipelines.map(&:save!)

      expect(subject).to contain_exactly(push_pipeline, web_pipeline, api_pipeline)
    end

    it 'filters on expected sources' do
      expect(::Enums::Ci::Pipeline.ci_sources.keys).to contain_exactly(
        *%i[unknown push web trigger schedule api external pipeline chat
            merge_request_event external_pull_request_event])
    end
  end

  describe '.ci_branch_sources' do
    subject { described_class.ci_branch_sources }

    let_it_be(:push_pipeline)   { create(:ci_pipeline, source: :push) }
    let_it_be(:web_pipeline)    { create(:ci_pipeline, source: :web) }
    let_it_be(:api_pipeline)    { create(:ci_pipeline, source: :api) }
    let_it_be(:webide_pipeline) { create(:ci_pipeline, source: :webide) }
    let_it_be(:child_pipeline)  { create(:ci_pipeline, source: :parent_pipeline) }
    let_it_be(:merge_request_pipeline) { create(:ci_pipeline, :detached_merge_request_pipeline) }

    it 'contains pipelines having CI only sources' do
      expect(subject).to contain_exactly(push_pipeline, web_pipeline, api_pipeline)
    end

    it 'filters on expected sources' do
      expect(::Enums::Ci::Pipeline.ci_branch_sources.keys).to contain_exactly(
        *%i[unknown push web trigger schedule api external pipeline chat
            external_pull_request_event])
    end
  end

  describe '.outside_pipeline_family' do
    subject(:outside_pipeline_family) { described_class.outside_pipeline_family(upstream_pipeline) }

    let(:upstream_pipeline) { create(:ci_pipeline, project: project) }
    let(:child_pipeline) { create(:ci_pipeline, project: project) }

    let!(:other_pipeline) { create(:ci_pipeline, project: project) }

    before do
      create(:ci_sources_pipeline,
             source_job: create(:ci_build, pipeline: upstream_pipeline),
             source_project: project,
             pipeline: child_pipeline,
             project: project)
    end

    it 'only returns pipelines outside pipeline family' do
      expect(outside_pipeline_family).to contain_exactly(other_pipeline)
    end
  end

  describe '.before_pipeline' do
    subject(:before_pipeline) { described_class.before_pipeline(child_pipeline) }

    let!(:older_other_pipeline) { create(:ci_pipeline, project: project) }

    let!(:upstream_pipeline) { create(:ci_pipeline, project: project) }
    let!(:child_pipeline) { create(:ci_pipeline, child_of: upstream_pipeline) }

    let!(:other_pipeline) { create(:ci_pipeline, project: project) }

    before do
      create(:ci_sources_pipeline,
             source_job: create(:ci_build, pipeline: upstream_pipeline),
             source_project: project,
             pipeline: child_pipeline,
             project: project)
    end

    it 'only returns older pipelines outside pipeline family' do
      expect(before_pipeline).to contain_exactly(older_other_pipeline)
    end
  end

  describe '.jobs_count_in_alive_pipelines' do
    before do
      ::Ci::HasStatus::ALIVE_STATUSES.each do |status|
        alive_pipeline = create(:ci_pipeline, status: status, project: project)
        create(:ci_build, pipeline: alive_pipeline)
        create(:ci_bridge, pipeline: alive_pipeline)
      end

      completed_pipeline = create(:ci_pipeline, :success, project: project)
      create(:ci_build, pipeline: completed_pipeline)

      old_pipeline = create(:ci_pipeline, :running, project: project, created_at: 2.days.ago)
      create(:ci_build, pipeline: old_pipeline)
    end

    it 'includes all jobs in alive pipelines created in the last 24 hours' do
      expect(described_class.jobs_count_in_alive_pipelines)
        .to eq(::Ci::HasStatus::ALIVE_STATUSES.count * 2)
    end
  end

  describe '.builds_count_in_alive_pipelines' do
    before do
      ::Ci::HasStatus::ALIVE_STATUSES.each do |status|
        alive_pipeline = create(:ci_pipeline, status: status, project: project)
        create(:ci_build, pipeline: alive_pipeline)
        create(:ci_bridge, pipeline: alive_pipeline)
      end

      completed_pipeline = create(:ci_pipeline, :success, project: project)
      create(:ci_build, pipeline: completed_pipeline)

      old_pipeline = create(:ci_pipeline, :running, project: project, created_at: 2.days.ago)
      create(:ci_build, pipeline: old_pipeline)
    end

    it 'includes all builds in alive pipelines created in the last 24 hours' do
      expect(described_class.builds_count_in_alive_pipelines)
        .to eq(::Ci::HasStatus::ALIVE_STATUSES.count)
    end
  end

  describe '#merge_request?' do
    let_it_be(:merge_request) { create(:merge_request) }
    let_it_be_with_reload(:pipeline) do
      create(:ci_pipeline, project: project, merge_request_id: merge_request.id)
    end

    it { expect(pipeline).to be_merge_request }

    context 'when merge request is already loaded' do
      it 'does not reload the record and returns true' do
        expect(pipeline.merge_request).to be_present

        expect { pipeline.merge_request? }.not_to exceed_query_limit(0)
        expect(pipeline).to be_merge_request
      end
    end

    context 'when merge request is not loaded' do
      it 'executes a database query and returns true' do
        expect(pipeline).to be_present

        expect { pipeline.merge_request? }.not_to exceed_query_limit(1)
        expect(pipeline).to be_merge_request
      end

      it 'caches the result' do
        expect(pipeline).to be_merge_request
        expect { pipeline.merge_request? }.not_to exceed_query_limit(0)
      end
    end

    context 'when merge request was removed' do
      before do
        pipeline.update!(merge_request_id: non_existing_record_id)
      end

      it 'executes a database query and returns false' do
        expect { pipeline.merge_request? }.not_to exceed_query_limit(1)
        expect(pipeline).not_to be_merge_request
      end
    end

    context 'when merge request id is not present' do
      before do
        pipeline.update!(merge_request_id: nil)
      end

      it { expect(pipeline).not_to be_merge_request }
    end
  end

  describe '#detached_merge_request_pipeline?' do
    subject { pipeline.detached_merge_request_pipeline? }

    let!(:pipeline) do
      create(:ci_pipeline, source: :merge_request_event, merge_request: merge_request, target_sha: target_sha)
    end

    let(:merge_request) { create(:merge_request) }
    let(:target_sha) { nil }

    it { is_expected.to be_truthy }

    context 'when target sha exists' do
      let(:target_sha) { merge_request.target_branch_sha }

      it { is_expected.to be_falsy }
    end
  end

  describe '#merged_result_pipeline?' do
    subject { pipeline.merged_result_pipeline? }

    let!(:pipeline) do
      create(:ci_pipeline, source: :merge_request_event, merge_request: merge_request, target_sha: target_sha)
    end

    let(:merge_request) { create(:merge_request) }
    let(:target_sha) { merge_request.target_branch_sha }

    it { is_expected.to be_truthy }

    context 'when target sha is empty' do
      let(:target_sha) { nil }

      it { is_expected.to be_falsy }
    end
  end

  describe '#merge_request_ref?' do
    subject { pipeline.merge_request_ref? }

    let(:pipeline) { build(:ci_empty_pipeline, :created) }

    it 'calls MergeRequest#merge_request_ref?' do
      expect(MergeRequest).to receive(:merge_request_ref?).with(pipeline.ref)

      subject
    end
  end

  describe '#merge_request_event_type' do
    subject { pipeline.merge_request_event_type }

    let(:pipeline) { merge_request.all_pipelines.last }

    context 'when pipeline is merge request pipeline' do
      let(:merge_request) { create(:merge_request, :with_merge_request_pipeline) }

      it { is_expected.to eq(:merged_result) }
    end

    context 'when pipeline is detached merge request pipeline' do
      let(:merge_request) { create(:merge_request, :with_detached_merge_request_pipeline) }

      it { is_expected.to eq(:detached) }
    end
  end

  describe '#legacy_detached_merge_request_pipeline?' do
    subject { pipeline.legacy_detached_merge_request_pipeline? }

    let_it_be(:merge_request) { create(:merge_request) }

    let(:ref) { 'feature' }
    let(:target_sha) { nil }

    let(:pipeline) do
      build(:ci_pipeline, source: :merge_request_event, merge_request: merge_request, ref: ref, target_sha: target_sha)
    end

    it { is_expected.to be_truthy }

    context 'when pipeline ref is a merge request ref' do
      let(:ref) { 'refs/merge-requests/1/head' }

      it { is_expected.to be_falsy }
    end

    context 'when target sha is set' do
      let(:target_sha) { 'target-sha' }

      it { is_expected.to be_falsy }
    end
  end

  describe '#matches_sha_or_source_sha?' do
    subject { pipeline.matches_sha_or_source_sha?(sample_sha) }

    let(:sample_sha) { Digest::SHA1.hexdigest(SecureRandom.hex) }

    context 'when sha matches' do
      let(:pipeline) { build(:ci_pipeline, sha: sample_sha) }

      it { is_expected.to be_truthy }
    end

    context 'when source_sha matches' do
      let(:pipeline) { build(:ci_pipeline, source_sha: sample_sha) }

      it { is_expected.to be_truthy }
    end

    context 'when both sha and source_sha do not match' do
      let(:pipeline) { build(:ci_pipeline, sha: 'test', source_sha: 'test') }

      it { is_expected.to be_falsy }
    end
  end

  describe '#source_ref' do
    subject { pipeline.source_ref }

    let(:pipeline) { create(:ci_pipeline, ref: 'feature') }

    it 'returns source ref' do
      is_expected.to eq('feature')
    end

    context 'when the pipeline is a detached merge request pipeline' do
      let(:merge_request) { create(:merge_request) }

      let(:pipeline) do
        create(:ci_pipeline, source: :merge_request_event, merge_request: merge_request, ref: merge_request.ref_path)
      end

      it 'returns source ref' do
        is_expected.to eq(merge_request.source_branch)
      end
    end
  end

  describe '#source_ref_slug' do
    subject { pipeline.source_ref_slug }

    let(:pipeline) { create(:ci_pipeline, ref: 'feature') }

    it 'slugifies with the source ref' do
      expect(Gitlab::Utils).to receive(:slugify).with('feature')

      subject
    end

    context 'when the pipeline is a detached merge request pipeline' do
      let(:merge_request) { create(:merge_request) }

      let(:pipeline) do
        create(:ci_pipeline, source: :merge_request_event, merge_request: merge_request, ref: merge_request.ref_path)
      end

      it 'slugifies with the source ref of the merge request' do
        expect(Gitlab::Utils).to receive(:slugify).with(merge_request.source_branch)

        subject
      end
    end
  end

  describe '.with_reports' do
    context 'when pipeline has a test report' do
      subject { described_class.with_reports(Ci::JobArtifact.of_report_type(:test)) }

      let!(:pipeline_with_report) { create(:ci_pipeline, :with_test_reports) }

      it 'selects the pipeline' do
        is_expected.to eq([pipeline_with_report])
      end
    end

    context 'when pipeline has a coverage report' do
      subject { described_class.with_reports(Ci::JobArtifact.of_report_type(:coverage)) }

      let!(:pipeline_with_report) { create(:ci_pipeline, :with_coverage_reports) }

      it 'selects the pipeline' do
        is_expected.to eq([pipeline_with_report])
      end
    end

    context 'when pipeline has an accessibility report' do
      subject { described_class.with_reports(Ci::JobArtifact.of_report_type(:accessibility)) }

      let(:pipeline_with_report) { create(:ci_pipeline, :with_accessibility_reports) }

      it 'selects the pipeline' do
        is_expected.to eq([pipeline_with_report])
      end
    end

    context 'when pipeline has a codequality report' do
      subject { described_class.with_reports(Ci::JobArtifact.of_report_type(:codequality)) }

      let(:pipeline_with_report) { create(:ci_pipeline, :with_codequality_reports) }

      it 'selects the pipeline' do
        is_expected.to eq([pipeline_with_report])
      end
    end

    context 'when pipeline has a terraform report' do
      it 'selects the pipeline' do
        pipeline_with_report = create(:ci_pipeline, :with_terraform_reports)

        expect(described_class.with_reports(Ci::JobArtifact.of_report_type(:terraform))).to eq(
          [pipeline_with_report]
        )
      end
    end

    context 'when pipeline does not have metrics reports' do
      subject { described_class.with_reports(Ci::JobArtifact.of_report_type(:test)) }

      let!(:pipeline_without_report) { create(:ci_empty_pipeline) }

      it 'does not select the pipeline' do
        is_expected.to be_empty
      end
    end
  end

  describe '.merge_request_event' do
    subject { described_class.merge_request_event }

    context 'when there is a merge request pipeline' do
      let!(:pipeline) { create(:ci_pipeline, source: :merge_request_event, merge_request: merge_request) }
      let(:merge_request) { create(:merge_request) }

      it 'returns merge request pipeline first' do
        expect(subject).to eq([pipeline])
      end
    end

    context 'when there are no merge request pipelines' do
      let!(:pipeline) { create(:ci_pipeline, source: :push) }

      it 'returns empty array' do
        expect(subject).to be_empty
      end
    end
  end

  describe 'modules' do
    it_behaves_like 'AtomicInternalId', validate_presence: false do
      let(:internal_id_attribute) { :iid }
      let(:instance) { build(:ci_pipeline) }
      let(:scope) { :project }
      let(:scope_attrs) { { project: instance.project } }
      let(:usage) { :ci_pipelines }
    end
  end

  describe '#source' do
    context 'when creating new pipeline' do
      let(:pipeline) do
        build(:ci_empty_pipeline, :created, project: project, source: nil)
      end

      it "prevents from creating an object" do
        expect(pipeline).not_to be_valid
      end
    end

    context 'when updating existing pipeline' do
      let(:pipeline) { create(:ci_empty_pipeline, :created) }

      before do
        pipeline.update_attribute(:source, nil)
      end

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

    context 'when source is unknown' do
      subject(:pipeline) { create(:ci_empty_pipeline, :created) }

      let(:attr) { :source }
      let(:attr_value) { :unknown }

      it_behaves_like 'having enum with nil value'
    end
  end

  describe '#config_source' do
    context 'when source is unknown' do
      subject(:pipeline) { create(:ci_empty_pipeline, :created) }

      let(:attr) { :config_source }
      let(:attr_value) { :unknown_source }

      it_behaves_like 'having enum with nil value'
    end
  end

  describe '#block' do
    let(:pipeline) { create(:ci_empty_pipeline, :created) }

    it 'changes pipeline status to manual' do
      expect(pipeline.block).to be true
      expect(pipeline.reload).to be_manual
      expect(pipeline.reload).to be_blocked
    end
  end

  describe '#delay' do
    subject { pipeline.delay }

    let(:pipeline) { build(:ci_pipeline, :created) }

    it 'changes pipeline status to schedule' do
      subject

      expect(pipeline).to be_scheduled
    end
  end

  describe '#valid_commit_sha' do
    let(:pipeline) { build_stubbed(:ci_empty_pipeline, :created, project: project) }

    context 'commit.sha can not start with 00000000' do
      before do
        pipeline.sha = '0' * 40
        pipeline.valid_commit_sha
      end

      it('commit errors should not be empty') { expect(pipeline.errors).not_to be_empty }
    end
  end

  describe '#short_sha' do
    subject { pipeline.short_sha }

    let(:pipeline) { build_stubbed(:ci_empty_pipeline, :created) }

    it 'has 8 items' do
      expect(subject.size).to eq(8)
    end

    it { expect(pipeline.sha).to start_with(subject) }
  end

  describe '#retried' do
    subject { pipeline.retried }

    let(:pipeline) { create(:ci_empty_pipeline, :created, project: project) }
    let!(:build1) { create(:ci_build, pipeline: pipeline, name: 'deploy', retried: true) }

    before do
      create(:ci_build, pipeline: pipeline, name: 'deploy')
    end

    it 'returns old builds' do
      is_expected.to contain_exactly(build1)
    end
  end

  describe '#coverage' do
    let_it_be_with_reload(:pipeline) { create(:ci_empty_pipeline) }

    context 'with multiple pipelines' do
      before_all do
        create(:ci_build, name: "rspec", coverage: 30, pipeline: pipeline)
        create(:ci_build, name: "rubocop", coverage: 35, pipeline: pipeline)
      end

      it "calculates average when there are two builds with coverage" do
        expect(pipeline.coverage).to be_within(0.001).of(32.5)
      end

      it "calculates average when there are two builds with coverage and one with nil" do
        create(:ci_build, pipeline: pipeline)

        expect(pipeline.coverage).to be_within(0.001).of(32.5)
      end

      it "calculates average when there are two builds with coverage and one is retried" do
        create(:ci_build, name: "rubocop", coverage: 30, pipeline: pipeline, retried: true)

        expect(pipeline.coverage).to be_within(0.001).of(32.5)
      end
    end

    context 'when there is one build without coverage' do
      it "calculates average to nil" do
        create(:ci_build, pipeline: pipeline)

        expect(pipeline.coverage).to be_nil
      end
    end
  end

  describe '#update_builds_coverage' do
    let_it_be(:pipeline) { create(:ci_empty_pipeline) }

    context 'builds with coverage_regex defined' do
      let!(:build_1) { create(:ci_build, :success, :trace_with_coverage, trace_coverage: 60.0, pipeline: pipeline) }
      let!(:build_2) { create(:ci_build, :success, :trace_with_coverage, trace_coverage: 80.0, pipeline: pipeline) }

      it 'updates the coverage value of each build from the trace' do
        pipeline.update_builds_coverage

        expect(build_1.reload.coverage).to eq(60.0)
        expect(build_2.reload.coverage).to eq(80.0)
      end
    end

    context 'builds without coverage_regex defined' do
      let!(:build) { create(:ci_build, :success, :trace_with_coverage, coverage_regex: nil, trace_coverage: 60.0, pipeline: pipeline) }

      it 'does not update the coverage value of each build from the trace' do
        pipeline.update_builds_coverage

        expect(build.reload.coverage).to eq(nil)
      end
    end

    context 'builds with coverage values already present' do
      let!(:build) { create(:ci_build, :success, :trace_with_coverage, trace_coverage: 60.0, coverage: 10.0, pipeline: pipeline) }

      it 'does not update the coverage value of each build from the trace' do
        pipeline.update_builds_coverage

        expect(build.reload.coverage).to eq(10.0)
      end
    end
  end

  describe '#retryable?' do
    subject { pipeline.retryable? }

    let_it_be(:pipeline) { create(:ci_empty_pipeline, :created, project: project) }

    context 'no failed builds' do
      before do
        create_build('rspec', 'success')
      end

      it 'is not retryable' do
        is_expected.to be_falsey
      end

      context 'one canceled job' do
        before do
          create_build('rubocop', 'canceled')
        end

        it 'is retryable' do
          is_expected.to be_truthy
        end
      end
    end

    context 'with failed builds' do
      before do
        create_build('rspec', 'running')
        create_build('rubocop', 'failed')
      end

      it 'is retryable' do
        is_expected.to be_truthy
      end
    end

    def create_build(name, status)
      create(:ci_build, name: name, status: status, pipeline: pipeline)
    end
  end

  describe '#persisted_variables' do
    context 'when pipeline is not persisted yet' do
      subject { build(:ci_pipeline).persisted_variables }

      it 'does not contain some variables' do
        keys = subject.map { |variable| variable[:key] }

        expect(keys).not_to include 'CI_PIPELINE_ID'
      end
    end

    context 'when pipeline is persisted' do
      subject { build_stubbed(:ci_pipeline).persisted_variables }

      it 'does contains persisted variables' do
        keys = subject.map { |variable| variable[:key] }

        expect(keys).to eq %w[CI_PIPELINE_ID CI_PIPELINE_URL]
      end
    end
  end

  describe '#protected_ref?' do
    let(:pipeline) { build(:ci_empty_pipeline, :created) }

    it 'delegates method to project' do
      expect(pipeline).not_to be_protected_ref
    end
  end

  describe '#legacy_trigger' do
    let(:trigger_request) { build(:ci_trigger_request) }
    let(:pipeline) { build(:ci_empty_pipeline, :created, trigger_requests: [trigger_request]) }

    it 'returns first trigger request' do
      expect(pipeline.legacy_trigger).to eq trigger_request
    end
  end

  describe '#auto_canceled?' do
    subject { pipeline.auto_canceled? }

    let(:pipeline) { build(:ci_empty_pipeline, :created) }

    context 'when it is canceled' do
      before do
        pipeline.cancel
      end

      context 'when there is auto_canceled_by' do
        before do
          pipeline.auto_canceled_by = create(:ci_empty_pipeline)
        end

        it 'is auto canceled' do
          is_expected.to be_truthy
        end
      end

      context 'when there is no auto_canceled_by' do
        it 'is not auto canceled' do
          is_expected.to be_falsey
        end
      end

      context 'when it is retried and canceled manually' do
        before do
          pipeline.enqueue
          pipeline.cancel
        end

        it 'is not auto canceled' do
          is_expected.to be_falsey
        end
      end
    end
  end

  describe 'pipeline stages' do
    let(:pipeline) { build(:ci_empty_pipeline, :created) }

    describe 'legacy stages' do
      before do
        create(:commit_status, pipeline: pipeline,
                               stage: 'build',
                               name: 'linux',
                               stage_idx: 0,
                               status: 'success')

        create(:commit_status, pipeline: pipeline,
                               stage: 'build',
                               name: 'mac',
                               stage_idx: 0,
                               status: 'failed')

        create(:commit_status, pipeline: pipeline,
                               stage: 'deploy',
                               name: 'staging',
                               stage_idx: 2,
                               status: 'running')

        create(:commit_status, pipeline: pipeline,
                               stage: 'test',
                               name: 'rspec',
                               stage_idx: 1,
                               status: 'success')
      end

      describe '#stages_count' do
        it 'returns a valid number of stages' do
          expect(pipeline.stages_count).to eq(3)
        end
      end

      describe '#stages_names' do
        it 'returns a valid names of stages' do
          expect(pipeline.stages_names).to eq(%w(build test deploy))
        end
      end
    end

    describe '#stages' do
      let(:pipeline) { build(:ci_empty_pipeline, :created) }

      before do
        create(:ci_stage, project: project, pipeline: pipeline, position: 4, name: 'deploy')
        create(:ci_build, project: project, pipeline: pipeline, stage: 'test', stage_idx: 3, name: 'test')
        create(:ci_build, project: project, pipeline: pipeline, stage: 'build', stage_idx: 2, name: 'build')
        create(:ci_stage, project: project, pipeline: pipeline, position: 1, name: 'sanity')
        create(:ci_stage, project: project, pipeline: pipeline, position: 5, name: 'cleanup')
      end

      subject { pipeline.stages }

      context 'when pipelines is not complete' do
        it 'returns stages in valid order' do
          expect(subject).to all(be_a Ci::Stage)
          expect(subject.map(&:name))
            .to eq %w[sanity build test deploy cleanup]
        end
      end

      context 'when pipeline is complete' do
        before do
          pipeline.succeed!
        end

        it 'returns stages in valid order' do
          expect(subject).to all(be_a Ci::Stage)
          expect(subject.map(&:name))
            .to eq %w[sanity build test deploy cleanup]
        end
      end
    end
  end

  describe 'state machine' do
    let_it_be_with_reload(:pipeline) { create(:ci_empty_pipeline, :created) }

    let(:current) { Time.current.change(usec: 0) }
    let(:build) { create_build('build1', queued_at: 0) }
    let(:build_b) { create_build('build2', queued_at: 0) }
    let(:build_c) { create_build('build3', queued_at: 0) }

    %w[succeed! drop! cancel! skip! block! delay!].each do |action|
      context "when the pipeline received #{action} event" do
        it 'deletes a persistent ref' do
          expect(pipeline.persistent_ref).to receive(:delete).once

          pipeline.public_send(action)
        end
      end
    end

    describe 'synching status to Jira' do
      let(:worker) { ::JiraConnect::SyncBuildsWorker }

      context 'when Jira Connect subscription does not exist' do
        it 'does not trigger a Jira synch worker' do
          expect(worker).not_to receive(:perform_async)

          pipeline.prepare!
        end
      end

      context 'when Jira Connect subscription exists' do
        before_all do
          create(:jira_connect_subscription, namespace: project.namespace)
        end

        %i[prepare! run! skip! drop! succeed! cancel! block! delay!].each do |event|
          context "when we call pipeline.#{event}" do
            it 'triggers a Jira synch worker' do
              expect(worker).to receive(:perform_async).with(pipeline.id, Integer)

              pipeline.send(event)
            end
          end
        end
      end
    end

    describe '#duration', :sidekiq_inline do
      context 'when multiple builds are finished' do
        before do
          travel_to(current + 30) do
            build.run!
            build.reload.success!
            build_b.run!
            build_c.run!
          end

          travel_to(current + 40) do
            build_b.reload.drop!
          end

          travel_to(current + 70) do
            build_c.reload.success!
          end
        end

        it 'matches sum of builds duration' do
          pipeline.reload

          expect(pipeline.duration).to eq(40)
        end
      end

      context 'when pipeline becomes blocked' do
        let!(:build) { create_build('build:1') }
        let!(:action) { create_build('manual:action', :manual) }

        before do
          travel_to(current + 1.minute) do
            build.run!
          end

          travel_to(current + 5.minutes) do
            build.reload.success!
          end
        end

        it 'recalculates pipeline duration' do
          pipeline.reload

          expect(pipeline).to be_manual
          expect(pipeline.duration).to eq 4.minutes
        end
      end
    end

    describe '#started_at' do
      let(:pipeline) { create(:ci_empty_pipeline, status: from_status) }

      %i[created preparing pending].each do |status|
        context "from #{status}" do
          let(:from_status) { status }

          it 'updates on transitioning to running' do
            pipeline.run

            expect(pipeline.started_at).not_to be_nil
          end
        end
      end

      context 'from created' do
        let(:from_status) { :created }

        it 'does not update on transitioning to success' do
          pipeline.succeed

          expect(pipeline.started_at).to be_nil
        end
      end

      context 'from success' do
        let(:started_at) { 2.days.ago }
        let(:from_status) { :success }

        before do
          pipeline.update!(started_at: started_at)
        end

        it 'does not update on transitioning to running' do
          pipeline.run

          expect(pipeline.started_at).to eq started_at
        end
      end
    end

    describe '#finished_at' do
      it 'updates on transitioning to success', :sidekiq_might_not_need_inline do
        build.success

        expect(pipeline.reload.finished_at).not_to be_nil
      end

      it 'does not update on transitioning to running' do
        build.run

        expect(pipeline.reload.finished_at).to be_nil
      end
    end

    describe 'track artifact report' do
      let_it_be(:user) { create(:user) }
      let_it_be_with_reload(:pipeline) { create(:ci_pipeline, :running, :with_test_reports, :with_coverage_reports, status: :running, user: user) }

      context 'when transitioning to completed status' do
        %i[drop! skip! succeed! cancel!].each do |command|
          it "performs worker on transition to #{command}" do
            expect(Ci::JobArtifacts::TrackArtifactReportWorker).to receive(:perform_async).with(pipeline.id)
            pipeline.send(command)
          end
        end
      end

      context 'when pipeline retried from failed to success', :clean_gitlab_redis_shared_state do
        let(:test_event_name_1) { 'i_testing_test_report_uploaded' }
        let(:test_event_name_2) { 'i_testing_coverage_report_uploaded' }
        let(:start_time) { 1.week.ago }
        let(:end_time) { 1.week.from_now }

        it 'counts only one test event report' do
          expect(Ci::JobArtifacts::TrackArtifactReportWorker).to receive(:perform_async).with(pipeline.id).twice.and_call_original

          Sidekiq::Testing.inline! do
            pipeline.drop!
            pipeline.run!
            pipeline.succeed!
          end

          unique_pipeline_pass = Gitlab::UsageDataCounters::HLLRedisCounter.unique_events(
            event_names: test_event_name_1,
            start_date: start_time,
            end_date: end_time
          )
          expect(unique_pipeline_pass).to eq(1)
        end

        it 'counts only one coverage event report' do
          expect(Ci::JobArtifacts::TrackArtifactReportWorker).to receive(:perform_async).with(pipeline.id).twice.and_call_original

          Sidekiq::Testing.inline! do
            pipeline.drop!
            pipeline.run!
            pipeline.succeed!
          end

          unique_pipeline_pass = Gitlab::UsageDataCounters::HLLRedisCounter.unique_events(
            event_names: test_event_name_2,
            start_date: start_time,
            end_date: end_time
          )
          expect(unique_pipeline_pass).to eq(1)
        end
      end
    end

    describe 'merge request metrics' do
      let(:pipeline) { create(:ci_empty_pipeline, status: from_status) }

      before do
        expect(PipelineMetricsWorker).to receive(:perform_async).with(pipeline.id)
      end

      context 'when transitioning to running' do
        %i[created preparing pending].each do |status|
          context "from #{status}" do
            let(:from_status) { status }

            it 'schedules metrics workers' do
              pipeline.run
            end
          end
        end
      end

      context 'when transitioning to success' do
        let(:from_status) { 'created' }

        it 'schedules metrics workers' do
          pipeline.succeed
        end
      end
    end

    describe 'merge on success' do
      let(:pipeline) { create(:ci_empty_pipeline, status: from_status) }

      %i[created preparing pending running].each do |status|
        context "from #{status}" do
          let(:from_status) { status }

          it 'schedules daily build group report results worker' do
            expect(Ci::DailyBuildGroupReportResultsWorker).to receive(:perform_in).with(10.minutes, pipeline.id)

            pipeline.succeed
          end
        end
      end
    end

    describe 'pipeline caching' do
      it 'executes Ci::ExpirePipelineCacheService' do
        expect_next_instance_of(Ci::ExpirePipelineCacheService) do |service|
          expect(service).to receive(:execute).with(pipeline)
        end

        pipeline.cancel
      end
    end

    describe '#dangling?' do
      it 'returns true if pipeline comes from any dangling sources' do
        pipeline.source = Enums::Ci::Pipeline.dangling_sources.each_key.first

        expect(pipeline).to be_dangling
      end

      it 'returns true if pipeline comes from any CI sources' do
        pipeline.source = Enums::Ci::Pipeline.ci_sources.each_key.first

        expect(pipeline).not_to be_dangling
      end
    end

    describe 'auto merge' do
      context 'when auto merge is enabled' do
        let_it_be_with_reload(:merge_request) { create(:merge_request, :merge_when_pipeline_succeeds) }
        let_it_be_with_reload(:pipeline) do
          create(:ci_pipeline, :running,
            project: merge_request.source_project, ref: merge_request.source_branch, sha: merge_request.diff_head_sha)
        end

        before_all do
          merge_request.update_head_pipeline
        end

        %w[succeed! drop! cancel! skip!].each do |action|
          context "when the pipeline received #{action} event" do
            it 'performs AutoMergeProcessWorker' do
              expect(AutoMergeProcessWorker).to receive(:perform_async).with(merge_request.id)

              pipeline.public_send(action)
            end
          end
        end
      end

      context 'when auto merge is not enabled in the merge request' do
        let(:merge_request) { create(:merge_request) }

        it 'performs AutoMergeProcessWorker' do
          expect(AutoMergeProcessWorker).not_to receive(:perform_async)

          pipeline.succeed!
        end
      end
    end

    describe 'auto devops pipeline metrics' do
      using RSpec::Parameterized::TableSyntax

      let(:pipeline) { create(:ci_empty_pipeline, config_source: config_source) }
      let(:config_source) { :auto_devops_source }

      where(:action, :status) do
        :succeed | 'success'
        :drop    | 'failed'
        :skip    | 'skipped'
        :cancel  | 'canceled'
      end

      with_them do
        context "when pipeline receives action '#{params[:action]}'" do
          subject { pipeline.public_send(action) }

          it { expect { subject }.to change { auto_devops_pipelines_completed_total(status) }.by(1) }

          context 'when not auto_devops_source?' do
            let(:config_source) { :repository_source }

            it { expect { subject }.not_to change { auto_devops_pipelines_completed_total(status) } }
          end
        end
      end

      def auto_devops_pipelines_completed_total(status)
        Gitlab::Metrics.counter(:auto_devops_pipelines_completed_total, 'Number of completed auto devops pipelines').get(status: status)
      end
    end

    describe 'bridge triggered pipeline' do
      shared_examples 'upstream downstream pipeline' do
        let!(:source_pipeline) { create(:ci_sources_pipeline, pipeline: downstream_pipeline, source_job: bridge) }
        let!(:job) { downstream_pipeline.builds.first }

        context 'when source bridge is dependent on pipeline status' do
          let!(:bridge) { create(:ci_bridge, :strategy_depend, pipeline: upstream_pipeline) }

          it 'schedules the pipeline bridge worker' do
            expect(::Ci::PipelineBridgeStatusWorker).to receive(:perform_async).with(downstream_pipeline.id)

            downstream_pipeline.succeed!
          end

          context 'when the downstream pipeline first fails then retries and succeeds' do
            it 'makes the upstream pipeline successful' do
              Sidekiq::Testing.inline! { job.drop! }

              expect(downstream_pipeline.reload).to be_failed
              expect(upstream_pipeline.reload).to be_failed

              Sidekiq::Testing.inline! do
                new_job = Ci::RetryJobService.new(project, project.users.first).execute(job)[:job]

                expect(downstream_pipeline.reload).to be_running
                expect(upstream_pipeline.reload).to be_running

                new_job.success!
              end

              expect(downstream_pipeline.reload).to be_success
              expect(upstream_pipeline.reload).to be_success
            end
          end

          context 'when the downstream pipeline first succeeds then retries and fails' do
            it 'makes the upstream pipeline failed' do
              Sidekiq::Testing.inline! { job.success! }

              expect(downstream_pipeline.reload).to be_success
              expect(upstream_pipeline.reload).to be_success

              Sidekiq::Testing.inline! do
                new_job = Ci::RetryJobService.new(project, project.users.first).execute(job)[:job]

                expect(downstream_pipeline.reload).to be_running
                expect(upstream_pipeline.reload).to be_running

                new_job.drop!
              end

              expect(downstream_pipeline.reload).to be_failed
              expect(upstream_pipeline.reload).to be_failed
            end
          end

          context 'when the upstream pipeline has another dependent upstream pipeline' do
            let!(:upstream_of_upstream_pipeline) { create(:ci_pipeline) }

            before do
              upstream_bridge = create(:ci_bridge, :strategy_depend, pipeline: upstream_of_upstream_pipeline)
              create(:ci_sources_pipeline, pipeline: upstream_pipeline,
                                           source_job: upstream_bridge)
            end

            context 'when the downstream pipeline first fails then retries and succeeds' do
              it 'makes upstream pipelines successful' do
                Sidekiq::Testing.inline! { job.drop! }

                expect(downstream_pipeline.reload).to be_failed
                expect(upstream_pipeline.reload).to be_failed
                expect(upstream_of_upstream_pipeline.reload).to be_failed

                Sidekiq::Testing.inline! do
                  new_job = Ci::RetryJobService.new(project, project.users.first).execute(job)[:job]

                  expect(downstream_pipeline.reload).to be_running
                  expect(upstream_pipeline.reload).to be_running
                  expect(upstream_of_upstream_pipeline.reload).to be_running

                  new_job.success!
                end

                expect(downstream_pipeline.reload).to be_success
                expect(upstream_pipeline.reload).to be_success
                expect(upstream_of_upstream_pipeline.reload).to be_success
              end
            end
          end
        end

        context 'when source bridge is not dependent on pipeline status' do
          let!(:bridge) { create(:ci_bridge, pipeline: upstream_pipeline) }

          it 'does not schedule the pipeline bridge worker' do
            expect(::Ci::PipelineBridgeStatusWorker).not_to receive(:perform_async)

            downstream_pipeline.succeed!
          end
        end
      end

      context 'multi-project pipelines' do
        let!(:downstream_project) { create(:project, :repository) }
        let!(:upstream_pipeline) { create(:ci_pipeline) }
        let!(:downstream_pipeline) { create(:ci_pipeline, :with_job, project: downstream_project) }

        it_behaves_like 'upstream downstream pipeline'
      end

      context 'parent-child pipelines' do
        let!(:upstream_pipeline) { create(:ci_pipeline) }
        let!(:downstream_pipeline) { create(:ci_pipeline, :with_job) }

        it_behaves_like 'upstream downstream pipeline'
      end
    end

    describe 'merge status subscription trigger' do
      shared_examples 'state transition not triggering GraphQL subscription mergeRequestMergeStatusUpdated' do
        context 'when state transitions to running' do
          it_behaves_like 'does not trigger GraphQL subscription mergeRequestMergeStatusUpdated' do
            let(:action) { pipeline.run }
          end
        end

        context 'when state transitions to success' do
          it_behaves_like 'does not trigger GraphQL subscription mergeRequestMergeStatusUpdated' do
            let(:action) { pipeline.succeed }
          end
        end

        context 'when state transitions to failed' do
          it_behaves_like 'does not trigger GraphQL subscription mergeRequestMergeStatusUpdated' do
            let(:action) { pipeline.drop }
          end
        end

        context 'when state transitions to canceled' do
          it_behaves_like 'does not trigger GraphQL subscription mergeRequestMergeStatusUpdated' do
            let(:action) { pipeline.cancel }
          end
        end

        context 'when state transitions to skipped' do
          it_behaves_like 'does not trigger GraphQL subscription mergeRequestMergeStatusUpdated' do
            let(:action) { pipeline.skip }
          end
        end
      end

      shared_examples 'state transition triggering GraphQL subscription mergeRequestMergeStatusUpdated' do
        context 'when state transitions to running' do
          it_behaves_like 'triggers GraphQL subscription mergeRequestMergeStatusUpdated' do
            let(:action) { pipeline.run }
          end
        end

        context 'when state transitions to success' do
          it_behaves_like 'triggers GraphQL subscription mergeRequestMergeStatusUpdated' do
            let(:action) { pipeline.succeed }
          end
        end

        context 'when state transitions to failed' do
          it_behaves_like 'triggers GraphQL subscription mergeRequestMergeStatusUpdated' do
            let(:action) { pipeline.drop }
          end
        end

        context 'when state transitions to canceled' do
          it_behaves_like 'triggers GraphQL subscription mergeRequestMergeStatusUpdated' do
            let(:action) { pipeline.cancel }
          end
        end

        context 'when state transitions to skipped' do
          it_behaves_like 'triggers GraphQL subscription mergeRequestMergeStatusUpdated' do
            let(:action) { pipeline.skip }
          end
        end

        context 'when only_allow_merge_if_pipeline_succeeds? returns false' do
          let(:only_allow_merge_if_pipeline_succeeds?) { false }

          it_behaves_like 'state transition not triggering GraphQL subscription mergeRequestMergeStatusUpdated'
        end

        context 'when pipeline_trigger_merge_status feature flag is disabled' do
          before do
            stub_feature_flags(pipeline_trigger_merge_status: false)
          end

          it_behaves_like 'state transition not triggering GraphQL subscription mergeRequestMergeStatusUpdated'
        end
      end

      context 'when pipeline has merge requests' do
        let(:merge_request) do
          create(
            :merge_request,
            :simple,
            source_project: project,
            target_project: project
          )
        end

        let(:only_allow_merge_if_pipeline_succeeds?) { true }

        before do
          allow(project)
            .to receive(:only_allow_merge_if_pipeline_succeeds?)
            .and_return(only_allow_merge_if_pipeline_succeeds?)
        end

        context 'when for a specific merge request' do
          let(:pipeline) do
            create(
              :ci_pipeline,
              project: project,
              merge_request: merge_request
            )
          end

          it_behaves_like 'state transition triggering GraphQL subscription mergeRequestMergeStatusUpdated'

          context 'when pipeline is a child' do
            let(:parent_pipeline) do
              create(
                :ci_pipeline,
                project: project,
                merge_request: merge_request
              )
            end

            let(:pipeline) do
              create(
                :ci_pipeline,
                child_of: parent_pipeline,
                merge_request: merge_request
              )
            end

            it_behaves_like 'state transition not triggering GraphQL subscription mergeRequestMergeStatusUpdated'
          end
        end

        context 'when for merge requests matching the source branch and SHA' do
          let(:pipeline) do
            create(
              :ci_pipeline,
              project: project,
              ref: merge_request.source_branch,
              sha: merge_request.diff_head_sha
            )
          end

          it_behaves_like 'state transition triggering GraphQL subscription mergeRequestMergeStatusUpdated'
        end
      end

      context 'when pipeline has no merge requests' do
        it_behaves_like 'state transition not triggering GraphQL subscription mergeRequestMergeStatusUpdated'
      end
    end

    def create_build(name, *traits, queued_at: current, started_from: 0, **opts)
      create(:ci_build, *traits,
             name: name,
             pipeline: pipeline,
             queued_at: queued_at,
             started_at: queued_at + started_from,
             **opts)
    end
  end

  describe '#ensure_persistent_ref' do
    subject { pipeline.ensure_persistent_ref }

    let(:pipeline) { create(:ci_pipeline, project: project) }

    context 'when the persistent ref does not exist' do
      it 'creates a ref' do
        expect(pipeline.persistent_ref).to receive(:create).once

        subject
      end
    end

    context 'when the persistent ref exists' do
      before do
        pipeline.persistent_ref.create # rubocop:disable Rails/SaveBang
      end

      it 'does not create a ref' do
        expect(pipeline.persistent_ref).not_to receive(:create)

        subject
      end
    end
  end

  describe '#branch?' do
    subject { pipeline.branch? }

    let(:pipeline) { build(:ci_empty_pipeline, :created) }

    context 'when ref is not a tag' do
      before do
        pipeline.tag = false
      end

      it 'return true' do
        is_expected.to be_truthy
      end

      context 'when pipeline is merge request' do
        let(:pipeline) { build(:ci_pipeline, merge_request: merge_request) }

        let(:merge_request) do
          create(:merge_request, :simple,
                 source_project: project,
                 target_project: project)
        end

        it 'returns false' do
          is_expected.to be_falsey
        end
      end
    end

    context 'when ref is a tag' do
      before do
        pipeline.tag = true
      end

      it 'return false' do
        is_expected.to be_falsey
      end
    end
  end

  describe '#git_ref' do
    subject { pipeline.send(:git_ref) }

    context 'when ref is branch' do
      let(:pipeline) { create(:ci_pipeline, tag: false) }

      it 'returns branch ref' do
        is_expected.to eq(Gitlab::Git::BRANCH_REF_PREFIX + pipeline.ref.to_s)
      end
    end

    context 'when ref is tag' do
      let(:pipeline) { create(:ci_pipeline, tag: true) }

      it 'returns branch ref' do
        is_expected.to eq(Gitlab::Git::TAG_REF_PREFIX + pipeline.ref.to_s)
      end
    end

    context 'when ref is merge request' do
      let(:pipeline) do
        create(:ci_pipeline,
               source: :merge_request_event,
               merge_request: merge_request)
      end

      let(:merge_request) do
        create(:merge_request,
               source_project: project,
               source_branch: 'feature',
               target_project: project,
               target_branch: 'master')
      end

      it 'returns branch ref' do
        is_expected.to eq(Gitlab::Git::BRANCH_REF_PREFIX + pipeline.ref.to_s)
      end
    end
  end

  describe 'ref_exists?' do
    context 'when repository exists' do
      using RSpec::Parameterized::TableSyntax

      let_it_be(:pipeline, refind: true) { create(:ci_empty_pipeline) }

      where(:tag, :ref, :result) do
        false | 'master'              | true
        false | 'non-existent-branch' | false
        true  | 'v1.1.0'              | true
        true  | 'non-existent-tag'    | false
      end

      with_them do
        before do
          pipeline.update!(tag: tag, ref: ref)
        end

        it "correctly detects ref" do
          expect(pipeline.ref_exists?).to be result
        end
      end
    end

    context 'when repository does not exist' do
      let(:pipeline) { build(:ci_empty_pipeline, ref: 'master', project: build(:project)) }

      it 'always returns false' do
        expect(pipeline.ref_exists?).to eq false
      end
    end
  end

  context 'with non-empty project' do
    let(:pipeline) do
      create(:ci_pipeline,
             ref: project.default_branch,
             sha: project.commit.sha)
    end

    describe '#lazy_ref_commit' do
      let(:another) do
        create(:ci_pipeline,
               ref: 'feature',
               sha: project.commit('feature').sha)
      end

      let(:unicode) do
        create(:ci_pipeline,
               ref: 'ü/unicode/multi-byte')
      end

      it 'returns the latest commit for a ref lazily' do
        expect(project.repository)
          .to receive(:list_commits_by_ref_name).once
          .and_call_original

        pipeline.lazy_ref_commit
        another.lazy_ref_commit
        unicode.lazy_ref_commit

        expect(pipeline.lazy_ref_commit.id).to eq pipeline.sha
        expect(another.lazy_ref_commit.id).to eq another.sha
        expect(unicode.lazy_ref_commit).to be_nil
      end
    end

    describe '#latest?' do
      context 'with latest sha' do
        it 'returns true' do
          expect(pipeline).to be_latest
        end
      end

      context 'with a branch name as the ref' do
        it 'looks up a commit for a branch' do
          expect(pipeline.ref).to eq 'master'
          expect(pipeline).to be_latest
        end
      end

      context 'with a tag name as a ref' do
        it 'looks up a commit for a tag' do
          expect(project.repository.branch_names).not_to include 'v1.0.0'

          pipeline.update!(sha: project.commit('v1.0.0').sha, ref: 'v1.0.0', tag: true)

          expect(pipeline).to be_tag
          expect(pipeline).to be_latest
        end
      end

      context 'with not latest sha' do
        before do
          pipeline.update!(sha: project.commit("#{project.default_branch}~1").sha)
        end

        it 'returns false' do
          expect(pipeline).not_to be_latest
        end
      end
    end
  end

  describe '#manual_actions' do
    subject { pipeline.manual_actions }

    let(:pipeline) { create(:ci_empty_pipeline, :created) }

    it 'when none defined' do
      is_expected.to be_empty
    end

    context 'when action defined' do
      let!(:manual) { create(:ci_build, :manual, pipeline: pipeline, name: 'deploy') }

      it 'returns one action' do
        is_expected.to contain_exactly(manual)
      end

      context 'there are multiple of the same name' do
        let!(:manual2) { create(:ci_build, :manual, pipeline: pipeline, name: 'deploy') }

        before do
          manual.update!(retried: true)
        end

        it 'returns latest one' do
          is_expected.to contain_exactly(manual2)
        end
      end
    end
  end

  describe '#branch_updated?' do
    let(:pipeline) { create(:ci_empty_pipeline, :created) }

    context 'when pipeline has before SHA' do
      before do
        pipeline.update!(before_sha: 'a1b2c3d4')
      end

      it 'runs on a branch update push' do
        expect(pipeline.before_sha).not_to be Gitlab::Git::BLANK_SHA
        expect(pipeline.branch_updated?).to be true
      end
    end

    context 'when pipeline does not have before SHA' do
      before do
        pipeline.update!(before_sha: Gitlab::Git::BLANK_SHA)
      end

      it 'does not run on a branch updating push' do
        expect(pipeline.branch_updated?).to be false
      end
    end
  end

  describe '#modified_paths' do
    let(:pipeline) { create(:ci_empty_pipeline, :created) }

    context 'when old and new revisions are set' do
      before do
        pipeline.update!(before_sha: '1234abcd', sha: '2345bcde')
      end

      it 'fetches stats for changes between commits' do
        expect(project.repository)
          .to receive(:diff_stats).with('1234abcd', '2345bcde')
          .and_call_original

        pipeline.modified_paths
      end
    end

    context 'when either old or new revision is missing' do
      before do
        pipeline.update!(before_sha: Gitlab::Git::BLANK_SHA)
      end

      it 'returns nil' do
        expect(pipeline.modified_paths).to be_nil
      end
    end

    context 'when source is merge request' do
      let(:pipeline) do
        create(:ci_pipeline, source: :merge_request_event, merge_request: merge_request)
      end

      let(:merge_request) do
        create(:merge_request, :simple,
               source_project: project,
               target_project: project)
      end

      it 'returns merge request modified paths' do
        expect(pipeline.modified_paths).to match(merge_request.modified_paths)
      end
    end

    context 'when source is an external pull request' do
      let(:pipeline) do
        create(:ci_pipeline, source: :external_pull_request_event, external_pull_request: external_pull_request)
      end

      let(:external_pull_request) do
        create(:external_pull_request, project: project, target_sha: '281d3a7', source_sha: '498214d')
      end

      it 'returns external pull request modified paths' do
        expect(pipeline.modified_paths).to match(external_pull_request.modified_paths)
      end
    end
  end

  describe '#modified_paths_since' do
    let(:project) do
      create(:project, :custom_repo,
             files: { 'file1.txt' => 'file 1' })
    end

    let(:user) { project.owner }
    let(:main_branch) { project.default_branch }
    let(:new_branch) { 'feature_x' }
    let(:pipeline) { build(:ci_pipeline, project: project, sha: new_branch) }

    subject(:modified_paths_since) { pipeline.modified_paths_since(main_branch) }

    before do
      project.repository.add_branch(user, new_branch, main_branch)
    end

    context 'when no change in the new branch' do
      it 'returns an empty array' do
        expect(modified_paths_since).to be_empty
      end
    end

    context 'when adding a new file' do
      before do
        project.repository.create_file(user, 'file2.txt', 'file 2', message: 'Create file2.txt', branch_name: new_branch)
      end

      it 'returns the new file path' do
        expect(modified_paths_since).to eq(['file2.txt'])
      end

      context 'and when updating an existing file' do
        before do
          project.repository.update_file(user, 'file1.txt', 'file 1 updated', message: 'Update file1.txt', branch_name: new_branch)
        end

        it 'returns the new and updated file paths' do
          expect(modified_paths_since).to eq(['file1.txt', 'file2.txt'])
        end
      end
    end

    context 'when updating an existing file' do
      before do
        project.repository.update_file(user, 'file1.txt', 'file 1 updated', message: 'Update file1.txt', branch_name: new_branch)
      end

      it 'returns the updated file path' do
        expect(modified_paths_since).to eq(['file1.txt'])
      end
    end
  end

  describe '#all_worktree_paths' do
    let(:files) { { 'main.go' => '', 'mocks/mocks.go' => '' } }
    let(:project) { create(:project, :custom_repo, files: files) }
    let(:pipeline) { build(:ci_pipeline, project: project, sha: project.repository.head_commit.sha) }

    it 'returns all file paths cached' do
      expect(project.repository).to receive(:ls_files).with(pipeline.sha).once.and_call_original
      expect(pipeline.all_worktree_paths).to eq(files.keys)
      expect(pipeline.all_worktree_paths).to eq(files.keys)
    end
  end

  describe '#top_level_worktree_paths' do
    let(:files) { { 'main.go' => '', 'mocks/mocks.go' => '' } }
    let(:project) { create(:project, :custom_repo, files: files) }
    let(:pipeline) { build(:ci_pipeline, project: project, sha: project.repository.head_commit.sha) }

    it 'returns top-level file paths cached' do
      expect(project.repository).to receive(:tree).with(pipeline.sha).once.and_call_original
      expect(pipeline.top_level_worktree_paths).to eq(['main.go'])
      expect(pipeline.top_level_worktree_paths).to eq(['main.go'])
    end
  end

  describe '#has_kubernetes_active?' do
    let(:pipeline) { create(:ci_empty_pipeline, :created, project: project) }

    context 'when kubernetes is active' do
      context 'when user configured kubernetes from CI/CD > Clusters' do
        let!(:cluster) { create(:cluster, :project, :provided_by_gcp) }
        let(:project) { cluster.project }

        it 'returns true' do
          expect(pipeline).to have_kubernetes_active
        end
      end
    end

    context 'when kubernetes is not active' do
      it 'returns false' do
        expect(pipeline).not_to have_kubernetes_active
      end
    end
  end

  describe '#has_warnings?' do
    subject { pipeline.has_warnings? }

    let_it_be(:pipeline) { create(:ci_empty_pipeline, :created) }

    context 'build which is allowed to fail fails' do
      before do
        create :ci_build, :success, pipeline: pipeline, name: 'rspec'
        create :ci_build, :allowed_to_fail, :failed, pipeline: pipeline, name: 'rubocop'
      end

      it 'returns true' do
        is_expected.to be_truthy
      end
    end

    context 'build which is allowed to fail succeeds' do
      before do
        create :ci_build, :success, pipeline: pipeline, name: 'rspec'
        create :ci_build, :allowed_to_fail, :success, pipeline: pipeline, name: 'rubocop'
      end

      it 'returns false' do
        is_expected.to be_falsey
      end
    end

    context 'build is retried and succeeds' do
      before do
        create :ci_build, :success, pipeline: pipeline, name: 'rubocop'
        create :ci_build, :failed, pipeline: pipeline, name: 'rspec'
        create :ci_build, :success, pipeline: pipeline, name: 'rspec'
      end

      it 'returns false' do
        is_expected.to be_falsey
      end
    end

    context 'bridge which is allowed to fail fails' do
      before do
        create :ci_bridge, :allowed_to_fail, :failed, pipeline: pipeline, name: 'rubocop'
      end

      it 'returns true' do
        is_expected.to be_truthy
      end
    end

    context 'bridge which is allowed to fail is successful' do
      before do
        create :ci_bridge, :allowed_to_fail, :success, pipeline: pipeline, name: 'rubocop'
      end

      it 'returns false' do
        is_expected.to be_falsey
      end
    end
  end

  describe '#number_of_warnings' do
    let_it_be(:pipeline) { create(:ci_empty_pipeline, :created) }

    it 'returns the number of warnings' do
      create(:ci_build, :allowed_to_fail, :failed, pipeline: pipeline, name: 'rubocop')
      create(:ci_bridge, :allowed_to_fail, :failed, pipeline: pipeline, name: 'rubocop')

      expect(pipeline.number_of_warnings).to eq(2)
    end

    it 'supports eager loading of the number of warnings' do
      pipeline2 = create(:ci_empty_pipeline, :created)

      create(:ci_build, :allowed_to_fail, :failed, pipeline: pipeline, name: 'rubocop')
      create(:ci_build, :allowed_to_fail, :failed, pipeline: pipeline2, name: 'rubocop')

      pipelines = project.ci_pipelines.to_a

      pipelines.each(&:number_of_warnings)

      # To run the queries we need to actually use the lazy objects, which we do
      # by just sending "to_i" to them.
      amount = ActiveRecord::QueryRecorder
        .new { pipelines.each { |p| p.number_of_warnings.to_i } }
        .count

      expect(amount).to eq(1)
    end
  end

  describe '#needs_processing?' do
    using RSpec::Parameterized::TableSyntax

    subject { pipeline.needs_processing? }

    let_it_be(:pipeline) { create(:ci_empty_pipeline, :created) }

    where(:processed, :result) do
      nil   | true
      false | true
      true  | false
    end

    with_them do
      let(:build) do
        create(:ci_build, :success, pipeline: pipeline, name: 'rubocop')
      end

      before do
        build.update_column(:processed, processed)
      end

      it { is_expected.to eq(result) }
    end
  end

  context 'with outdated pipelines' do
    before_all do
      create_pipeline(:canceled, 'ref', 'A')
      create_pipeline(:success, 'ref', 'A')
      create_pipeline(:failed, 'ref', 'B')
      create_pipeline(:skipped, 'feature', 'C')
    end

    def create_pipeline(status, ref, sha)
      create(
        :ci_empty_pipeline,
        status: status,
        ref: ref,
        sha: sha
      )
    end

    describe '.newest_first' do
      it 'returns the pipelines from new to old' do
        expect(described_class.newest_first.pluck(:status))
          .to eq(%w[skipped failed success canceled])
      end

      it 'searches limited backlog' do
        expect(described_class.newest_first(limit: 1).pluck(:status))
          .to eq(%w[skipped])
      end
    end

    describe '.latest_status' do
      context 'when no ref is specified' do
        it 'returns the status of the latest pipeline' do
          expect(described_class.latest_status).to eq('skipped')
        end
      end

      context 'when ref is specified' do
        it 'returns the status of the latest pipeline for the given ref' do
          expect(described_class.latest_status('ref')).to eq('failed')
        end
      end
    end

    describe '.latest_successful_for_ref' do
      let!(:latest_successful_pipeline) do
        create_pipeline(:success, 'ref', 'D')
      end

      it 'returns the latest successful pipeline' do
        expect(described_class.latest_successful_for_ref('ref'))
          .to eq(latest_successful_pipeline)
      end
    end

    describe '.latest_running_for_ref' do
      let!(:latest_running_pipeline) do
        create_pipeline(:running, 'ref', 'D')
      end

      it 'returns the latest running pipeline' do
        expect(described_class.latest_running_for_ref('ref'))
          .to eq(latest_running_pipeline)
      end
    end

    describe '.latest_failed_for_ref' do
      let!(:latest_failed_pipeline) do
        create_pipeline(:failed, 'ref', 'D')
      end

      it 'returns the latest failed pipeline' do
        expect(described_class.latest_failed_for_ref('ref'))
          .to eq(latest_failed_pipeline)
      end
    end

    describe '.latest_successful_for_sha' do
      let!(:latest_successful_pipeline) do
        create_pipeline(:success, 'ref', 'awesomesha')
      end

      it 'returns the latest successful pipeline' do
        expect(described_class.latest_successful_for_sha('awesomesha'))
          .to eq(latest_successful_pipeline)
      end
    end

    describe '.latest_successful_for_refs' do
      subject(:latest_successful_for_refs) { described_class.latest_successful_for_refs(refs) }

      context 'when refs are specified' do
        let(:refs) { %w(first_ref second_ref third_ref) }

        before do
          create(:ci_empty_pipeline, id: 1001, status: :success, ref: 'first_ref', sha: 'sha')
          create(:ci_empty_pipeline, id: 1002, status: :success, ref: 'second_ref', sha: 'sha')
        end

        let!(:latest_successful_pipeline_for_first_ref) do
          create(:ci_empty_pipeline, id: 2001, status: :success, ref: 'first_ref', sha: 'sha')
        end

        let!(:latest_successful_pipeline_for_second_ref) do
          create(:ci_empty_pipeline, id: 2002, status: :success, ref: 'second_ref', sha: 'sha')
        end

        it 'returns the latest successful pipeline for both refs' do
          expect(latest_successful_for_refs).to eq({
            'first_ref' => latest_successful_pipeline_for_first_ref,
            'second_ref' => latest_successful_pipeline_for_second_ref
          })
        end
      end

      context 'when no refs are specified' do
        let(:refs) { [] }

        it 'returns an empty relation whenno refs are specified' do
          expect(latest_successful_for_refs).to be_empty
        end
      end
    end
  end

  describe '.latest_pipeline_per_commit' do
    let!(:commit_123_ref_master) do
      create(
        :ci_empty_pipeline,
        status: 'success',
        ref: 'master',
        sha: '123'
      )
    end

    let!(:commit_123_ref_develop) do
      create(
        :ci_empty_pipeline,
        status: 'success',
        ref: 'develop',
        sha: '123'
      )
    end

    let!(:commit_456_ref_test) do
      create(
        :ci_empty_pipeline,
        status: 'success',
        ref: 'test',
        sha: '456'
      )
    end

    context 'without a ref' do
      it 'returns a Hash containing the latest pipeline per commit for all refs' do
        result = described_class.latest_pipeline_per_commit(%w[123 456])

        expect(result).to match(
          '123' => commit_123_ref_develop,
          '456' => commit_456_ref_test
        )
      end

      it 'only includes the latest pipeline of the given commit SHAs' do
        result = described_class.latest_pipeline_per_commit(%w[123])

        expect(result).to match(
          '123' => commit_123_ref_develop
        )
      end

      context 'when there are two pipelines for a ref and SHA' do
        let!(:commit_123_ref_master_latest) do
          create(
            :ci_empty_pipeline,
            status: 'failed',
            ref: 'master',
            sha: '123',
            project: project
          )
        end

        it 'returns the latest pipeline' do
          result = described_class.latest_pipeline_per_commit(%w[123])

          expect(result).to match(
            '123' => commit_123_ref_master_latest
          )
        end
      end
    end

    context 'with a ref' do
      it 'only includes the pipelines for the given ref' do
        result = described_class.latest_pipeline_per_commit(%w[123 456], 'master')

        expect(result).to match(
          '123' => commit_123_ref_master
        )
      end
    end

    context 'when method is scoped' do
      let!(:commit_123_ref_master_parent_pipeline) do
        create(
          :ci_pipeline,
          sha: '123',
          ref: 'master',
          project: project
        )
      end

      let!(:commit_123_ref_master_child_pipeline) do
        create(
          :ci_pipeline,
          sha: '123',
          ref: 'master',
          project: project,
          child_of: commit_123_ref_master_parent_pipeline
        )
      end

      it 'returns the latest pipeline after applying the scope' do
        result = described_class.ci_sources.latest_pipeline_per_commit(%w[123], 'master')

        expect(result).to match(
          '123' => commit_123_ref_master_parent_pipeline
        )
      end
    end
  end

  describe '.latest_successful_ids_per_project' do
    let(:projects) { create_list(:project, 2) }
    let!(:pipeline1) { create(:ci_pipeline, :success, project: projects[0]) }
    let!(:pipeline2) { create(:ci_pipeline, :success, project: projects[0]) }
    let!(:pipeline3) { create(:ci_pipeline, :failed, project: projects[0]) }
    let!(:pipeline4) { create(:ci_pipeline, :success, project: projects[1]) }

    it 'returns expected pipeline ids' do
      expect(described_class.latest_successful_ids_per_project)
        .to contain_exactly(pipeline2, pipeline4)
    end
  end

  describe '.last_finished_for_ref_id' do
    let(:branch) { project.default_branch }
    let(:ref) { project.ci_refs.take }
    let(:dangling_source) { Enums::Ci::Pipeline.sources[:ondemand_dast_scan] }
    let!(:pipeline1) { create(:ci_pipeline, :success, project: project, ref: branch) }
    let!(:pipeline2) { create(:ci_pipeline, :success, project: project, ref: branch) }
    let!(:pipeline3) { create(:ci_pipeline, :failed, project: project, ref: branch) }
    let!(:pipeline4) { create(:ci_pipeline, :success, project: project, ref: branch) }
    let!(:pipeline5) { create(:ci_pipeline, :success, project: project, ref: branch, source: dangling_source) }

    it 'returns the expected pipeline' do
      result = described_class.last_finished_for_ref_id(ref.id)
      expect(result).to eq(pipeline4)
    end
  end

  describe '.internal_sources' do
    subject { described_class.internal_sources }

    it { is_expected.to be_an(Array) }
  end

  describe '.bridgeable_statuses' do
    subject { described_class.bridgeable_statuses }

    it { is_expected.to be_an(Array) }
    it { is_expected.not_to include('created', 'waiting_for_resource', 'preparing', 'pending') }
  end

  describe '#status', :sidekiq_inline do
    subject { pipeline.reload.status }

    let_it_be(:pipeline) { create(:ci_empty_pipeline, :created) }

    let(:build) { create(:ci_build, :created, pipeline: pipeline, name: 'test') }

    context 'on waiting for resource' do
      before do
        allow(build).to receive(:with_resource_group?) { true }
        allow(Ci::ResourceGroups::AssignResourceFromResourceGroupWorker).to receive(:perform_async)

        build.enqueue
      end

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

    context 'on prepare' do
      before do
        # Prevent skipping directly to 'pending'
        allow(build).to receive(:prerequisites).and_return([double])
        allow(Ci::BuildPrepareWorker).to receive(:perform_async)

        build.enqueue
      end

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

    context 'on queuing' do
      before do
        build.enqueue
      end

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

    context 'on run' do
      before do
        build.enqueue
        build.reload.run
      end

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

    context 'on drop' do
      before do
        build.drop
      end

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

    context 'on success' do
      before do
        build.success
      end

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

    context 'on cancel' do
      before do
        build.cancel
      end

      context 'when build is pending' do
        let(:build) do
          create(:ci_build, :pending, pipeline: pipeline)
        end

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

    context 'on failure and build retry' do
      before do
        stub_not_protect_default_branch

        build.drop
        project.add_developer(user)
        ::Ci::RetryJobService.new(project, user).execute(build)[:job]
      end

      # We are changing a state: created > failed > running
      # Instead of: created > failed > pending
      # Since the pipeline already run, so it should not be pending anymore

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

  describe '#detailed_status' do
    subject { pipeline.detailed_status(user) }

    let_it_be(:pipeline) { create(:ci_empty_pipeline, :created) }

    context 'when pipeline is created' do
      let(:pipeline) { create(:ci_pipeline, :created) }

      it 'returns detailed status for created pipeline' do
        expect(subject.text).to eq s_('CiStatusText|created')
      end
    end

    context 'when pipeline is pending' do
      let(:pipeline) { create(:ci_pipeline, status: :pending) }

      it 'returns detailed status for pending pipeline' do
        expect(subject.text).to eq s_('CiStatusText|pending')
      end
    end

    context 'when pipeline is running' do
      let(:pipeline) { create(:ci_pipeline, status: :running) }

      it 'returns detailed status for running pipeline' do
        expect(subject.text).to eq s_('CiStatus|running')
      end
    end

    context 'when pipeline is successful' do
      let(:pipeline) { create(:ci_pipeline, status: :success) }

      it 'returns detailed status for successful pipeline' do
        expect(subject.text).to eq s_('CiStatusText|passed')
      end
    end

    context 'when pipeline is failed' do
      let(:pipeline) { create(:ci_pipeline, status: :failed) }

      it 'returns detailed status for failed pipeline' do
        expect(subject.text).to eq s_('CiStatusText|failed')
      end
    end

    context 'when pipeline is canceled' do
      let(:pipeline) { create(:ci_pipeline, status: :canceled) }

      it 'returns detailed status for canceled pipeline' do
        expect(subject.text).to eq s_('CiStatusText|canceled')
      end
    end

    context 'when pipeline is skipped' do
      let(:pipeline) { create(:ci_pipeline, status: :skipped) }

      it 'returns detailed status for skipped pipeline' do
        expect(subject.text).to eq s_('CiStatusText|skipped')
      end
    end

    context 'when pipeline is blocked' do
      let(:pipeline) { create(:ci_pipeline, status: :manual) }

      it 'returns detailed status for blocked pipeline' do
        expect(subject.text).to eq s_('CiStatusText|blocked')
      end
    end

    context 'when pipeline is successful but with warnings' do
      let(:pipeline) { create(:ci_pipeline, status: :success) }

      before do
        create(:ci_build, :allowed_to_fail, :failed, pipeline: pipeline)
      end

      it 'retruns detailed status for successful pipeline with warnings' do
        expect(subject.label).to eq(s_('CiStatusLabel|passed with warnings'))
      end
    end
  end

  describe '#cancelable?' do
    let_it_be(:pipeline) { create(:ci_empty_pipeline, :created) }

    %i[created running pending].each do |status0|
      context "when there is a build #{status0}" do
        before do
          create(:ci_build, status0, pipeline: pipeline)
        end

        it 'is cancelable' do
          expect(pipeline.cancelable?).to be_truthy
        end
      end

      context "when there is an external job #{status0}" do
        before do
          create(:generic_commit_status, status0, pipeline: pipeline)
        end

        it 'is cancelable' do
          expect(pipeline.cancelable?).to be_truthy
        end
      end

      %i[success failed canceled].each do |status1|
        context "when there are generic_commit_status jobs for #{status0} and #{status1}" do
          before do
            create(:generic_commit_status, status0, pipeline: pipeline)
            create(:generic_commit_status, status1, pipeline: pipeline)
          end

          it 'is cancelable' do
            expect(pipeline.cancelable?).to be_truthy
          end
        end

        context "when there are generic_commit_status and ci_build jobs for #{status0} and #{status1}" do
          before do
            create(:generic_commit_status, status0, pipeline: pipeline)
            create(:ci_build, status1, pipeline: pipeline)
          end

          it 'is cancelable' do
            expect(pipeline.cancelable?).to be_truthy
          end
        end

        context "when there are ci_build jobs for #{status0} and #{status1}" do
          before do
            create(:ci_build, status0, pipeline: pipeline)
            create(:ci_build, status1, pipeline: pipeline)
          end

          it 'is cancelable' do
            expect(pipeline.cancelable?).to be_truthy
          end
        end
      end
    end

    %i[success failed canceled].each do |status|
      context "when there is a build #{status}" do
        before do
          create(:ci_build, status, pipeline: pipeline)
        end

        it 'is not cancelable' do
          expect(pipeline.cancelable?).to be_falsey
        end
      end

      context "when there is an external job #{status}" do
        before do
          create(:generic_commit_status, status, pipeline: pipeline)
        end

        it 'is not cancelable' do
          expect(pipeline.cancelable?).to be_falsey
        end
      end
    end

    context 'when there is a manual action present in the pipeline' do
      before do
        create(:ci_build, :manual, pipeline: pipeline)
      end

      it 'is not cancelable' do
        expect(pipeline).not_to be_cancelable
      end
    end
  end

  describe '#cancel_running' do
    let(:latest_status) { pipeline.statuses.pluck(:status) }

    let_it_be(:pipeline) { create(:ci_empty_pipeline, :created) }

    it 'logs the event' do
      allow(Gitlab::AppJsonLogger).to receive(:info)

      pipeline.cancel_running

      expect(Gitlab::AppJsonLogger)
        .to have_received(:info)
        .with(
          a_hash_including(
            event: 'pipeline_cancel_running',
            pipeline_id: pipeline.id,
            auto_canceled_by_pipeline_id: nil,
            cascade_to_children: true,
            execute_async: true
          )
        )
    end

    context 'when there is a running external job and a regular job' do
      before do
        create(:ci_build, :running, pipeline: pipeline)
        create(:generic_commit_status, :running, pipeline: pipeline)

        pipeline.cancel_running
      end

      it 'cancels both jobs' do
        expect(latest_status).to contain_exactly('canceled', 'canceled')
      end
    end

    context 'when jobs are in different stages' do
      before do
        create(:ci_build, :running, stage_idx: 0, pipeline: pipeline)
        create(:ci_build, :running, stage_idx: 1, pipeline: pipeline)

        pipeline.cancel_running
      end

      it 'cancels both jobs' do
        expect(latest_status).to contain_exactly('canceled', 'canceled')
      end
    end

    context 'when there are created builds present in the pipeline' do
      before do
        create(:ci_build, :running, stage_idx: 0, pipeline: pipeline)
        create(:ci_build, :created, stage_idx: 1, pipeline: pipeline)

        pipeline.cancel_running
      end

      it 'cancels created builds' do
        expect(latest_status).to eq %w(canceled canceled)
      end
    end

    context 'with bridge jobs' do
      before do
        create(:ci_bridge, :created, pipeline: pipeline)

        pipeline.cancel_running
      end

      it 'bridges are canceled' do
        expect(pipeline.bridges.first.status).to eq 'canceled'
      end
    end

    context 'when pipeline is not cancelable' do
      before do
        create(:ci_build, :canceled, stage_idx: 0, pipeline: pipeline)

        pipeline.cancel_running
      end

      it 'does not send cancel signal to cancel self' do
        expect(pipeline).not_to receive(:cancel_self_only)

        pipeline.cancel_running
      end
    end

    context 'preloading relations' do
      let(:pipeline1) { create(:ci_empty_pipeline, :created) }
      let(:pipeline2) { create(:ci_empty_pipeline, :created) }

      before do
        create(:ci_build, :pending, pipeline: pipeline1)
        create(:generic_commit_status, :pending, pipeline: pipeline1)

        create(:ci_build, :pending, pipeline: pipeline2)
        create(:ci_build, :pending, pipeline: pipeline2)
        create(:generic_commit_status, :pending, pipeline: pipeline2)
        create(:generic_commit_status, :pending, pipeline: pipeline2)
        create(:generic_commit_status, :pending, pipeline: pipeline2)
      end

      it 'preloads relations for each build to avoid N+1 queries' do
        control1 = ActiveRecord::QueryRecorder.new do
          pipeline1.cancel_running
        end

        control2 = ActiveRecord::QueryRecorder.new do
          pipeline2.cancel_running
        end

        extra_update_queries = 4 # transition ... => :canceled, queue pop
        extra_generic_commit_status_validation_queries = 2 # name_uniqueness_across_types

        expect(control2.count).to eq(control1.count + extra_update_queries + extra_generic_commit_status_validation_queries)
      end
    end

    shared_examples 'retries' do
      context 'when the first try cannot get an exclusive lock' do
        let(:retries) { 1 }

        subject { pipeline.cancel_running(retries: retries) }

        before do
          create(:ci_build, :running, pipeline: pipeline)

          stub_first_cancel_call_fails
        end

        it 'retries again and cancels the build' do
          subject

          expect(latest_status).to contain_exactly('canceled')
        end

        context 'when the retries parameter is 0' do
          let(:retries) { 0 }

          it 'raises error' do
            expect { subject }.to raise_error(ActiveRecord::StaleObjectError)
          end
        end
      end

      def stub_first_cancel_call_fails
        call_count = 0

        allow_next_found_instance_of(Ci::Build) do |build|
          allow(build).to receive(:cancel).and_wrap_original do |original, *args| # rubocop:disable RSpec/AnyInstanceOf
            call_count >= retries ? raise(ActiveRecord::StaleObjectError) : original.call(*args)

            call_count += 1
          end
        end
      end
    end

    it_behaves_like 'retries'

    context 'when auto canceled' do
      let!(:canceled_by) { create(:ci_empty_pipeline) }

      before do
        create(:ci_build, :running, pipeline: pipeline)

        pipeline.cancel_running(auto_canceled_by_pipeline_id: canceled_by.id)
      end

      it 'sets auto cancel' do
        jobs_canceled_by = pipeline.statuses.map { |s| s.auto_canceled_by.id }

        expect(jobs_canceled_by).to contain_exactly(canceled_by.id)
        expect(pipeline.auto_canceled_by.id).to eq(canceled_by.id)
      end
    end

    context 'when there are child pipelines', :sidekiq_inline do
      let_it_be(:child_pipeline) { create(:ci_empty_pipeline, :created, child_of: pipeline) }

      before do
        project.clear_memoization(:cascade_cancel_pipelines_enabled)

        pipeline.reload
      end

      context 'when cascade_to_children is true' do
        let(:cascade_to_children) { true }
        let(:canceled_by) { nil }
        let(:execute_async) { true }

        let(:params) do
          {
            cascade_to_children: cascade_to_children,
            execute_async: execute_async
          }.tap do |p|
            p.merge!(auto_canceled_by_pipeline_id: canceled_by.id) if canceled_by
          end
        end

        subject(:cancel_running) { pipeline.cancel_running(**params) }

        context 'when cancelable child pipeline builds' do
          before do
            create(:ci_build, :created, pipeline: child_pipeline)
            create(:ci_build, :running, pipeline: child_pipeline)
          end

          it 'cancels child builds' do
            cancel_running

            latest_status_for_child = child_pipeline.statuses.pluck(:status)
            expect(latest_status_for_child).to eq %w(canceled canceled)
            expect(latest_status).to eq %w(canceled)
          end

          it 'cancels bridges' do
            create(:ci_bridge, :created, pipeline: pipeline)
            create(:ci_bridge, :created, pipeline: child_pipeline)

            cancel_running

            expect(pipeline.bridges.reload.first.status).to eq 'canceled'
            expect(child_pipeline.bridges.reload.first.status).to eq 'canceled'
          end

          context 'with nested child pipelines' do
            let!(:nested_child_pipeline) { create(:ci_empty_pipeline, :created, child_of: child_pipeline) }
            let!(:nested_child_pipeline_build) { create(:ci_build, :created, pipeline: nested_child_pipeline) }

            it 'cancels them' do
              cancel_running

              expect(nested_child_pipeline.reload.status).to eq 'canceled'
              expect(nested_child_pipeline_build.reload.status).to eq 'canceled'
            end
          end

          context 'when auto canceled' do
            let(:canceled_by) { create(:ci_empty_pipeline) }

            it 'sets auto cancel' do
              cancel_running

              pipeline.reload

              jobs_canceled_by_ids = pipeline.statuses.map(&:auto_canceled_by_id)
              child_pipelines_canceled_by_ids = pipeline.child_pipelines.map(&:auto_canceled_by_id)
              child_pipelines_jobs_canceled_by_ids = pipeline.child_pipelines.map(&:statuses).flatten.map(&:auto_canceled_by_id)

              expect(jobs_canceled_by_ids).to contain_exactly(canceled_by.id)
              expect(pipeline.auto_canceled_by_id).to eq(canceled_by.id)
              expect(child_pipelines_canceled_by_ids).to contain_exactly(canceled_by.id)
              expect(child_pipelines_jobs_canceled_by_ids).to contain_exactly(canceled_by.id, canceled_by.id)
            end
          end

          context 'when execute_async is false' do
            let(:execute_async) { false }

            it 'runs sync' do
              expect(::Ci::CancelPipelineWorker).not_to receive(:perform_async)

              cancel_running
            end

            it 'cancels children' do
              cancel_running

              latest_status_for_child = child_pipeline.statuses.pluck(:status)
              expect(latest_status_for_child).to eq %w(canceled canceled)
              expect(latest_status).to eq %w(canceled)
            end

            context 'with nested child pipelines' do
              let!(:nested_child_pipeline) { create(:ci_empty_pipeline, :created, child_of: child_pipeline) }
              let!(:nested_child_pipeline_build) { create(:ci_build, :created, pipeline: nested_child_pipeline) }

              it 'cancels them' do
                cancel_running

                expect(nested_child_pipeline.reload.status).to eq 'canceled'
                expect(nested_child_pipeline_build.reload.status).to eq 'canceled'
              end
            end
          end
        end

        it 'does not cancel uncancelable child pipeline builds' do
          create(:ci_build, :failed, pipeline: child_pipeline)

          cancel_running

          latest_status_for_child = child_pipeline.statuses.pluck(:status)
          expect(latest_status_for_child).to eq %w(failed)
          expect(latest_status).to eq %w(canceled)
        end
      end

      context 'when cascade_to_children is false' do
        let(:cascade_to_children) { false }

        subject(:cancel_running) { pipeline.cancel_running(cascade_to_children: cascade_to_children) }

        it 'does not cancel cancelable child pipeline builds' do
          create(:ci_build, :created, pipeline: child_pipeline)
          create(:ci_build, :running, pipeline: child_pipeline)

          cancel_running

          latest_status_for_child = child_pipeline.statuses.order_id_desc.pluck(:status)
          expect(latest_status_for_child).to eq %w(running created)
          expect(latest_status).to eq %w(canceled)
        end

        it 'does not cancel uncancelable child pipeline builds' do
          create(:ci_build, :failed, pipeline: child_pipeline)

          cancel_running

          latest_status_for_child = child_pipeline.statuses.pluck(:status)
          expect(latest_status_for_child).to eq %w(failed)
          expect(latest_status).to eq %w(canceled)
        end
      end
    end
  end

  describe '.cancelable' do
    subject { described_class.cancelable }

    shared_examples 'containing the pipeline' do |status|
      context "when it's #{status} pipeline" do
        let!(:pipeline) { create(:ci_pipeline, status: status) }

        it { is_expected.to contain_exactly(pipeline) }
      end
    end

    shared_examples 'not containing the pipeline' do |status|
      context "when it's #{status} pipeline" do
        let!(:pipeline) { create(:ci_pipeline, status: status) }

        it { is_expected.to be_empty }
      end
    end

    %i[running pending waiting_for_resource preparing created scheduled manual].each do |status|
      it_behaves_like 'containing the pipeline', status
    end

    %i[failed success skipped canceled].each do |status|
      it_behaves_like 'not containing the pipeline', status
    end
  end

  describe '#retry_failed' do
    subject(:latest_status) { pipeline.latest_statuses.pluck(:status) }

    let_it_be(:pipeline) { create(:ci_empty_pipeline, :created) }

    before do
      stub_not_protect_default_branch

      project.add_developer(user)
    end

    context 'when there is a failed build and failed external status' do
      before do
        create(:ci_build, :failed, name: 'build', pipeline: pipeline)
        create(:generic_commit_status, :failed, name: 'jenkins', pipeline: pipeline)

        pipeline.retry_failed(user)
      end

      it 'retries only build' do
        expect(latest_status).to contain_exactly('pending', 'failed')
      end
    end

    context 'when builds are in different stages' do
      before do
        create(:ci_build, :failed, name: 'build', stage_idx: 0, pipeline: pipeline)
        create(:ci_build, :failed, name: 'jenkins', stage_idx: 1, pipeline: pipeline)

        pipeline.retry_failed(user)
      end

      it 'retries both builds' do
        expect(latest_status).to contain_exactly('pending', 'created')
      end
    end

    context 'when there are canceled and failed' do
      before do
        create(:ci_build, :failed, name: 'build', stage_idx: 0, pipeline: pipeline)
        create(:ci_build, :canceled, name: 'jenkins', stage_idx: 1, pipeline: pipeline)

        pipeline.retry_failed(user)
      end

      it 'retries both builds' do
        expect(latest_status).to contain_exactly('pending', 'created')
      end
    end
  end

  describe 'hooks trigerring' do
    let_it_be_with_reload(:pipeline) { create(:ci_empty_pipeline, :created) }

    %i[
      enqueue
      request_resource
      prepare
      run
      skip
      drop
      succeed
      cancel
      block
      delay
    ].each do |action|
      context "when pipeline action is #{action}" do
        let(:pipeline_action) { action }

        it 'schedules a new PipelineHooksWorker job' do
          expect(Gitlab::AppLogger).to receive(:info).with(
            message: include("Enqueuing hooks for Pipeline #{pipeline.id}"),
            class: described_class.name,
            pipeline_id: pipeline.id,
            project_id: pipeline.project_id,
            pipeline_status: String
          )
          expect(PipelineHooksWorker).to receive(:perform_async).with(pipeline.id)

          pipeline.public_send(pipeline_action)
        end

        context 'with blocked users' do
          before do
            allow(pipeline).to receive(:user) { build(:user, :blocked) }
          end

          it 'does not schedule a new PipelineHooksWorker job' do
            expect(PipelineHooksWorker).not_to receive(:perform_async)

            pipeline.public_send(pipeline_action)
          end
        end
      end
    end
  end

  describe "#merge_requests_as_head_pipeline" do
    let_it_be_with_reload(:pipeline) { create(:ci_empty_pipeline, status: 'created', ref: 'master', sha: 'a288a022a53a5a944fae87bcec6efc87b7061808') }

    it "returns merge requests whose `diff_head_sha` matches the pipeline's SHA" do
      allow_next_instance_of(MergeRequest) do |instance|
        allow(instance).to receive(:diff_head_sha) { 'a288a022a53a5a944fae87bcec6efc87b7061808' }
      end
      merge_request = create(:merge_request, source_project: project, head_pipeline: pipeline, source_branch: pipeline.ref)

      expect(pipeline.merge_requests_as_head_pipeline).to eq([merge_request])
    end

    it "doesn't return merge requests whose source branch doesn't match the pipeline's ref" do
      create(:merge_request, :simple, source_project: project)

      expect(pipeline.merge_requests_as_head_pipeline).to be_empty
    end

    it "doesn't return merge requests whose `diff_head_sha` doesn't match the pipeline's SHA" do
      create(:merge_request, source_project: project, source_branch: pipeline.ref)
      allow_next_instance_of(MergeRequest) do |instance|
        allow(instance).to receive(:diff_head_sha) { '97de212e80737a608d939f648d959671fb0a0142b' }
      end

      expect(pipeline.merge_requests_as_head_pipeline).to be_empty
    end
  end

  describe '#all_merge_requests' do
    let_it_be_with_reload(:project) { create(:project) }
    let_it_be(:pipeline) { create(:ci_empty_pipeline, :created, project: project) }

    shared_examples 'a method that returns all merge requests for a given pipeline' do
      let(:pipeline) { create(:ci_empty_pipeline, status: 'created', project: pipeline_project, ref: 'master') }

      it 'returns all merge requests having the same source branch and the pipeline sha' do
        merge_request = create(:merge_request, source_project: pipeline_project, target_project: project, source_branch: pipeline.ref)

        create(:merge_request_diff, merge_request: merge_request).tap do |diff|
          create(:merge_request_diff_commit, merge_request_diff: diff, sha: pipeline.sha)
        end

        expect(pipeline.all_merge_requests).to eq([merge_request])
      end

      it "doesn't return merge requests having the same source branch without the pipeline sha" do
        merge_request = create(:merge_request, source_project: pipeline_project, target_project: project, source_branch: pipeline.ref)
        create(:merge_request_diff, merge_request: merge_request).tap do |diff|
          create(:merge_request_diff_commit, merge_request_diff: diff, sha: 'unrelated')
        end

        expect(pipeline.all_merge_requests).to be_empty
      end

      it "doesn't return merge requests having a different source branch" do
        create(:merge_request, source_project: pipeline_project, target_project: project, source_branch: 'feature', target_branch: 'master')

        expect(pipeline.all_merge_requests).to be_empty
      end

      context 'when there is a merge request pipeline' do
        let(:source_branch) { 'feature' }
        let(:target_branch) { 'master' }

        let!(:pipeline) do
          create(:ci_pipeline,
                 source: :merge_request_event,
                 project: pipeline_project,
                 ref: source_branch,
                 merge_request: merge_request)
        end

        let(:merge_request) do
          create(:merge_request,
                 source_project: pipeline_project,
                 source_branch: source_branch,
                 target_project: project,
                 target_branch: target_branch)
        end

        it 'returns an associated merge request' do
          expect(pipeline.all_merge_requests).to eq([merge_request])
        end

        context 'when there is another merge request pipeline that targets a different branch' do
          let(:target_branch_2) { 'merge-test' }

          let!(:pipeline_2) do
            create(:ci_pipeline,
                   source: :merge_request_event,
                   project: pipeline_project,
                   ref: source_branch,
                   merge_request: merge_request_2)
          end

          let(:merge_request_2) do
            create(:merge_request,
                   source_project: pipeline_project,
                   source_branch: source_branch,
                   target_project: project,
                   target_branch: target_branch_2)
          end

          it 'does not return an associated merge request' do
            expect(pipeline.all_merge_requests).not_to include(merge_request_2)
          end
        end
      end
    end

    it_behaves_like 'a method that returns all merge requests for a given pipeline' do
      let(:pipeline_project) { project }
    end

    context 'for a fork' do
      let(:fork) { fork_project(project) }

      it_behaves_like 'a method that returns all merge requests for a given pipeline' do
        let(:pipeline_project) { fork }
      end
    end
  end

  describe '#related_merge_requests' do
    let(:merge_request) { create(:merge_request, source_project: project, source_branch: 'feature', target_branch: 'master') }
    let(:other_merge_request) { create(:merge_request, source_project: project, source_branch: 'feature', target_branch: 'stable') }
    let(:branch_pipeline) { create(:ci_pipeline, ref: 'feature') }
    let(:merge_pipeline) { create(:ci_pipeline, :detached_merge_request_pipeline, merge_request: merge_request) }

    context 'for a branch pipeline' do
      subject { branch_pipeline.related_merge_requests }

      it 'when no merge request is created' do
        is_expected.to be_empty
      end

      it 'when another merge requests are created' do
        merge_request
        other_merge_request

        is_expected.to contain_exactly(merge_request, other_merge_request)
      end
    end

    context 'for a merge pipeline' do
      subject { merge_pipeline.related_merge_requests }

      it 'when only merge pipeline is created' do
        merge_pipeline

        is_expected.to contain_exactly(merge_request)
      end

      it 'when a merge request is created' do
        merge_pipeline
        other_merge_request

        is_expected.to contain_exactly(merge_request, other_merge_request)
      end
    end
  end

  describe '#open_merge_requests_refs' do
    let!(:pipeline) { create(:ci_pipeline, user: user, ref: 'feature') }
    let!(:merge_request) { create(:merge_request, source_project: project, source_branch: 'feature', target_branch: 'master') }

    subject { pipeline.open_merge_requests_refs }

    context 'when user is a developer' do
      before do
        project.add_developer(user)
      end

      it 'returns open merge requests' do
        is_expected.to eq([merge_request.to_reference(full: true)])
      end

      it 'does not return closed merge requests' do
        merge_request.close!

        is_expected.to be_empty
      end

      context 'limits amount of returned merge requests' do
        let!(:other_merge_requests) do
          Array.new(4) do |idx|
            create(:merge_request, source_project: project, source_branch: 'feature', target_branch: "master-#{idx}")
          end
        end

        let(:other_merge_requests_refs) do
          other_merge_requests.map { |mr| mr.to_reference(full: true) }
        end

        it 'returns only last 4 in a reverse order' do
          is_expected.to eq(other_merge_requests_refs.reverse)
        end
      end
    end

    context 'when user does not have permissions' do
      it 'does not return any merge requests' do
        is_expected.to be_empty
      end
    end
  end

  describe '#same_family_pipeline_ids' do
    subject { pipeline.same_family_pipeline_ids.map(&:id) }

    let_it_be(:pipeline) { create(:ci_empty_pipeline, :created) }

    context 'when pipeline is not child nor parent' do
      it 'returns just the pipeline id' do
        expect(subject).to contain_exactly(pipeline.id)
      end
    end

    context 'when pipeline is child' do
      let(:parent) { create(:ci_pipeline) }
      let!(:pipeline) { create(:ci_pipeline, child_of: parent) }
      let!(:sibling) { create(:ci_pipeline, child_of: parent) }

      it 'returns parent sibling and self ids' do
        expect(subject).to contain_exactly(parent.id, pipeline.id, sibling.id)
      end
    end

    context 'when pipeline is parent' do
      let!(:child) { create(:ci_pipeline, child_of: pipeline) }

      it 'returns self and child ids' do
        expect(subject).to contain_exactly(pipeline.id, child.id)
      end
    end

    context 'when pipeline is a child of a child pipeline' do
      let(:ancestor) { create(:ci_pipeline) }
      let!(:parent) { create(:ci_pipeline, child_of: ancestor) }
      let!(:pipeline) { create(:ci_pipeline, child_of: parent) }
      let!(:cousin_parent) { create(:ci_pipeline, child_of: ancestor) }
      let!(:cousin) { create(:ci_pipeline, child_of: cousin_parent) }

      it 'returns all family ids' do
        expect(subject).to contain_exactly(
          ancestor.id, parent.id, cousin_parent.id, cousin.id, pipeline.id
        )
      end
    end

    context 'when pipeline is a triggered pipeline' do
      let!(:upstream) { create(:ci_pipeline, project: create(:project), upstream_of: pipeline) }

      it 'returns self id' do
        expect(subject).to contain_exactly(pipeline.id)
      end
    end
  end

  describe '#environments_in_self_and_project_descendants' do
    subject { pipeline.environments_in_self_and_project_descendants }

    context 'when pipeline is not child nor parent' do
      let_it_be(:pipeline) { create(:ci_pipeline, :created) }
      let_it_be(:build, refind: true) { create(:ci_build, :with_deployment, :deploy_to_production, pipeline: pipeline) }

      it 'returns just the pipeline environment' do
        expect(subject).to contain_exactly(build.deployment.environment)
      end

      context 'when deployment SHA is not matched' do
        before do
          build.deployment.update!(sha: 'old-sha')
        end

        it 'does not return environments' do
          expect(subject).to be_empty
        end
      end
    end

    context 'when an associated environment does not have deployments' do
      let_it_be(:pipeline) { create(:ci_pipeline, :created) }
      let_it_be(:build) { create(:ci_build, :stop_review_app, pipeline: pipeline) }
      let_it_be(:environment) { create(:environment, project: pipeline.project) }

      before_all do
        build.metadata.update!(expanded_environment_name: environment.name)
      end

      it 'does not return environments' do
        expect(subject).to be_empty
      end
    end

    context 'when pipeline is in extended family' do
      let_it_be(:parent) { create(:ci_pipeline) }
      let_it_be(:parent_build) { create(:ci_build, :with_deployment, environment: 'staging', pipeline: parent) }

      let_it_be(:pipeline) { create(:ci_pipeline, child_of: parent) }
      let_it_be(:build) { create(:ci_build, :with_deployment, :deploy_to_production, pipeline: pipeline) }

      let_it_be(:child) { create(:ci_pipeline, child_of: pipeline) }
      let_it_be(:child_build) { create(:ci_build, :with_deployment, environment: 'canary', pipeline: child) }

      let_it_be(:grandchild) { create(:ci_pipeline, child_of: child) }
      let_it_be(:grandchild_build) { create(:ci_build, :with_deployment, environment: 'test', pipeline: grandchild) }

      let_it_be(:sibling) { create(:ci_pipeline, child_of: parent) }
      let_it_be(:sibling_build) { create(:ci_build, :with_deployment, environment: 'review', pipeline: sibling) }

      it 'returns its own environment and from all descendants' do
        expected_environments = [
          build.deployment.environment,
          child_build.deployment.environment,
          grandchild_build.deployment.environment
        ]
        expect(subject).to match_array(expected_environments)
      end

      it 'does not return parent environment' do
        expect(subject).not_to include(parent_build.deployment.environment)
      end

      it 'does not return sibling environment' do
        expect(subject).not_to include(sibling_build.deployment.environment)
      end
    end

    context 'when each pipeline has multiple environments' do
      let_it_be(:pipeline) { create(:ci_pipeline, :created) }
      let_it_be(:build1) { create(:ci_build, :with_deployment, :deploy_to_production, pipeline: pipeline) }
      let_it_be(:build2) { create(:ci_build, :with_deployment, environment: 'staging', pipeline: pipeline) }

      let_it_be(:child) { create(:ci_pipeline, child_of: pipeline) }
      let_it_be(:child_build1) { create(:ci_build, :with_deployment, environment: 'canary', pipeline: child) }
      let_it_be(:child_build2) { create(:ci_build, :with_deployment, environment: 'test', pipeline: child) }

      it 'returns all related environments' do
        expected_environments = [
          build1.deployment.environment,
          build2.deployment.environment,
          child_build1.deployment.environment,
          child_build2.deployment.environment
        ]
        expect(subject).to match_array(expected_environments)
      end
    end

    context 'when pipeline has no environment' do
      let_it_be(:pipeline) { create(:ci_pipeline, :created) }

      it 'returns empty' do
        expect(subject).to be_empty
      end
    end
  end

  describe '#root_ancestor' do
    subject { pipeline.root_ancestor }

    let_it_be(:pipeline) { create(:ci_pipeline) }

    context 'when pipeline is child of child pipeline' do
      let!(:root_ancestor) { create(:ci_pipeline) }
      let!(:parent_pipeline) { create(:ci_pipeline, child_of: root_ancestor) }
      let!(:pipeline) { create(:ci_pipeline, child_of: parent_pipeline) }

      it 'returns the root ancestor' do
        expect(subject).to eq(root_ancestor)
      end
    end

    context 'when pipeline is root ancestor' do
      let!(:child_pipeline) { create(:ci_pipeline, child_of: pipeline) }

      it 'returns itself' do
        expect(subject).to eq(pipeline)
      end
    end

    context 'when pipeline is standalone' do
      it 'returns itself' do
        expect(subject).to eq(pipeline)
      end
    end

    context 'when pipeline is multi-project downstream pipeline' do
      let!(:upstream_pipeline) do
        create(:ci_pipeline, project: create(:project), upstream_of: pipeline)
      end

      it 'ignores cross project ancestors' do
        expect(subject).to eq(pipeline)
      end
    end
  end

  describe '#upstream_root' do
    subject { pipeline.upstream_root }

    let_it_be_with_refind(:pipeline) { create(:ci_pipeline) }

    context 'when pipeline is child of child pipeline' do
      let!(:root_ancestor) { create(:ci_pipeline) }
      let!(:parent_pipeline) { create(:ci_pipeline, child_of: root_ancestor) }
      let!(:pipeline) { create(:ci_pipeline, child_of: parent_pipeline) }

      it 'returns the root ancestor' do
        expect(subject).to eq(root_ancestor)
      end
    end

    context 'when pipeline is root ancestor' do
      let!(:child_pipeline) { create(:ci_pipeline, child_of: pipeline) }

      it 'returns itself' do
        expect(subject).to eq(pipeline)
      end
    end

    context 'when pipeline is standalone' do
      it 'returns itself' do
        expect(subject).to eq(pipeline)
      end
    end

    context 'when pipeline is multi-project downstream pipeline' do
      let!(:upstream_pipeline) do
        create(:ci_pipeline, project: create(:project), upstream_of: pipeline)
      end

      it 'returns the upstream pipeline' do
        expect(subject).to eq(upstream_pipeline)
      end
    end
  end

  describe '#stuck?' do
    let(:pipeline) { create(:ci_empty_pipeline, :created) }

    before do
      create(:ci_build, :pending, pipeline: pipeline)
    end

    context 'when pipeline is stuck' do
      it 'is stuck' do
        expect(pipeline).to be_stuck
      end
    end

    context 'when pipeline is not stuck' do
      before do
        create(:ci_runner, :instance, :online)
      end

      it 'is not stuck' do
        expect(pipeline).not_to be_stuck
      end
    end
  end

  describe '#add_error_message' do
    let(:pipeline) { build_stubbed(:ci_pipeline) }

    it 'adds a new pipeline error message' do
      pipeline.add_error_message('The error message')

      expect(pipeline.messages.map(&:content)).to contain_exactly('The error message')
    end
  end

  describe '#has_yaml_errors?' do
    let(:pipeline) { build_stubbed(:ci_pipeline) }

    context 'when yaml_errors is set' do
      before do
        pipeline.yaml_errors = 'File not found'
      end

      it 'returns true if yaml_errors is set' do
        expect(pipeline).to have_yaml_errors
        expect(pipeline.yaml_errors).to include('File not foun')
      end
    end

    it 'returns false if yaml_errors is not set' do
      expect(pipeline).not_to have_yaml_errors
    end
  end

  describe 'notifications when pipeline success or failed' do
    let(:namespace) { create(:namespace) }
    let(:project) { create(:project, :repository, namespace: namespace) }

    let(:pipeline) do
      create(:ci_pipeline,
             project: project,
             sha: project.commit('master').sha,
             user: project.first_owner)
    end

    before do
      project.add_developer(pipeline.user)

      pipeline.user.global_notification_setting
        .update!(level: 'custom', failed_pipeline: true, success_pipeline: true)

      perform_enqueued_jobs do
        pipeline.enqueue
        pipeline.run
      end
    end

    shared_examples 'sending a notification' do
      it 'sends an email', :sidekiq_might_not_need_inline do
        should_only_email(pipeline.user)
      end
    end

    shared_examples 'not sending any notification' do
      it 'does not send any email' do
        should_not_email_anyone
      end
    end

    context 'with success pipeline' do
      it_behaves_like 'sending a notification' do
        before do
          perform_enqueued_jobs do
            pipeline.succeed
          end
        end
      end

      it 'enqueues PipelineNotificationWorker' do
        expect(PipelineNotificationWorker)
          .to receive(:perform_async).with(pipeline.id, ref_status: :success)

        pipeline.succeed
      end

      context 'when pipeline is not the latest' do
        before do
          create(:ci_pipeline, :success, ci_ref: pipeline.ci_ref)
        end

        it 'does not pass ref_status' do
          expect(PipelineNotificationWorker)
            .to receive(:perform_async).with(pipeline.id, ref_status: nil)

          pipeline.succeed!
        end
      end

      context 'when the user is blocked' do
        before do
          pipeline.user.block!
        end

        it 'does not enqueue PipelineNotificationWorker' do
          expect(PipelineNotificationWorker).not_to receive(:perform_async)

          pipeline.succeed
        end
      end
    end

    context 'with failed pipeline' do
      it_behaves_like 'sending a notification' do
        before do
          perform_enqueued_jobs do
            create(:ci_build, :failed, pipeline: pipeline)
            create(:generic_commit_status, :failed, pipeline: pipeline)

            pipeline.drop
          end
        end
      end

      it 'enqueues PipelineNotificationWorker' do
        expect(PipelineNotificationWorker)
          .to receive(:perform_async).with(pipeline.id, ref_status: :failed)

        pipeline.drop
      end

      context 'when the user is blocked' do
        before do
          pipeline.user.block!
        end

        it 'does not enqueue PipelineNotificationWorker' do
          expect(PipelineNotificationWorker).not_to receive(:perform_async)

          pipeline.drop
        end
      end
    end

    context 'with skipped pipeline' do
      before do
        perform_enqueued_jobs do
          pipeline.skip
        end
      end

      it_behaves_like 'not sending any notification'
    end

    context 'with cancelled pipeline' do
      before do
        perform_enqueued_jobs do
          pipeline.cancel
        end
      end

      it_behaves_like 'not sending any notification'
    end
  end

  describe 'updates ci_ref when pipeline finished' do
    context 'when ci_ref exists' do
      let!(:pipeline) { create(:ci_pipeline, :running) }

      it 'updates the ci_ref' do
        expect(pipeline.ci_ref)
          .to receive(:update_status_by!).with(pipeline).and_call_original

        pipeline.succeed!
      end
    end

    context 'when ci_ref does not exist' do
      let!(:pipeline) { create(:ci_pipeline, :running, ci_ref_presence: false) }

      it 'does not raise an exception' do
        expect { pipeline.succeed! }.not_to raise_error
      end
    end
  end

  describe '#ensure_ci_ref!' do
    subject { pipeline.ensure_ci_ref! }

    context 'when ci_ref does not exist yet' do
      let!(:pipeline) { create(:ci_pipeline, ci_ref_presence: false) }

      it 'creates a new ci_ref and assigns it' do
        expect { subject }.to change { Ci::Ref.count }.by(1)

        expect(pipeline.ci_ref).to be_present
      end
    end

    context 'when ci_ref already exists' do
      let!(:pipeline) { create(:ci_pipeline) }

      it 'fetches a new ci_ref and assigns it' do
        expect { subject }.not_to change { Ci::Ref.count }

        expect(pipeline.ci_ref).to be_present
      end
    end
  end

  describe '#self_and_project_descendants_complete?' do
    let_it_be(:pipeline) { create(:ci_pipeline, :success) }
    let_it_be(:child_pipeline) { create(:ci_pipeline, :success, child_of: pipeline) }
    let_it_be_with_reload(:grandchild_pipeline) { create(:ci_pipeline, :success, child_of: child_pipeline) }

    context 'when all pipelines in the hierarchy is complete' do
      it { expect(pipeline.self_and_project_descendants_complete?).to be(true) }
    end

    context 'when a pipeline in the hierarchy is not complete' do
      before do
        grandchild_pipeline.update!(status: :running)
      end

      it { expect(pipeline.self_and_project_descendants_complete?).to be(false) }
    end
  end

  describe '#builds_in_self_and_project_descendants' do
    subject(:builds) { pipeline.builds_in_self_and_project_descendants }

    let(:pipeline) { create(:ci_pipeline) }
    let!(:build) { create(:ci_build, pipeline: pipeline) }

    context 'when pipeline is standalone' do
      it 'returns the list of builds' do
        expect(builds).to contain_exactly(build)
      end
    end

    context 'when pipeline is parent of another pipeline' do
      let(:child_pipeline) { create(:ci_pipeline, child_of: pipeline) }
      let!(:child_build) { create(:ci_build, pipeline: child_pipeline) }

      it 'returns the list of builds' do
        expect(builds).to contain_exactly(build, child_build)
      end
    end

    context 'when pipeline is parent of another parent pipeline' do
      let(:child_pipeline) { create(:ci_pipeline, child_of: pipeline) }
      let!(:child_build) { create(:ci_build, pipeline: child_pipeline) }
      let(:child_of_child_pipeline) { create(:ci_pipeline, child_of: child_pipeline) }
      let!(:child_of_child_build) { create(:ci_build, pipeline: child_of_child_pipeline) }

      it 'returns the list of builds' do
        expect(builds).to contain_exactly(build, child_build, child_of_child_build)
      end
    end
  end

  describe '#build_with_artifacts_in_self_and_project_descendants' do
    let_it_be(:pipeline) { create(:ci_pipeline) }

    let!(:build) { create(:ci_build, name: 'test', pipeline: pipeline) }
    let(:child_pipeline) { create(:ci_pipeline, child_of: pipeline) }
    let!(:child_build) { create(:ci_build, :artifacts, name: 'test', pipeline: child_pipeline) }

    it 'returns the build with a given name, having artifacts' do
      expect(pipeline.build_with_artifacts_in_self_and_project_descendants('test')).to eq(child_build)
    end

    context 'when same job name is present in both parent and child pipeline' do
      let!(:build) { create(:ci_build, :artifacts, name: 'test', pipeline: pipeline) }

      it 'returns the job in the parent pipeline' do
        expect(pipeline.build_with_artifacts_in_self_and_project_descendants('test')).to eq(build)
      end
    end
  end

  describe '#find_job_with_archive_artifacts' do
    let(:pipeline) { create(:ci_pipeline) }
    let!(:old_job) { create(:ci_build, name: 'rspec', retried: true, pipeline: pipeline) }
    let!(:job_without_artifacts) { create(:ci_build, name: 'rspec', pipeline: pipeline) }
    let!(:expected_job) { create(:ci_build, :artifacts, name: 'rspec', pipeline: pipeline) }
    let!(:different_job) { create(:ci_build, name: 'deploy', pipeline: pipeline) }

    subject { pipeline.find_job_with_archive_artifacts('rspec') }

    it 'finds the expected job' do
      expect(subject).to eq(expected_job)
    end
  end

  describe '#latest_builds_with_artifacts' do
    let(:pipeline) { create(:ci_pipeline) }
    let!(:fresh_build) { create(:ci_build, :success, :artifacts, pipeline: pipeline) }
    let!(:stale_build) { create(:ci_build, :success, :expired, :artifacts, pipeline: pipeline) }

    it 'returns an Array' do
      expect(pipeline.latest_builds_with_artifacts).to be_an_instance_of(Array)
    end

    it 'returns the latest builds with non-expired artifacts' do
      expect(pipeline.latest_builds_with_artifacts).to contain_exactly(fresh_build)
    end

    it 'does not return builds with expired artifacts' do
      expect(pipeline.latest_builds_with_artifacts).not_to include(stale_build)
    end

    it 'memoizes the returned relation' do
      query_count = ActiveRecord::QueryRecorder
        .new { 2.times { pipeline.latest_builds_with_artifacts.to_a } }
        .count

      expect(query_count).to eq(1)
    end
  end

  describe '#batch_lookup_report_artifact_for_file_type' do
    context 'with code quality report artifact' do
      let(:pipeline) { create(:ci_pipeline, :with_codequality_reports) }

      it "returns the code quality artifact" do
        expect(pipeline.batch_lookup_report_artifact_for_file_type(:codequality)).to eq(pipeline.job_artifacts.sample)
      end
    end
  end

  describe '#latest_report_builds' do
    let_it_be(:pipeline) { create(:ci_pipeline, project: project) }

    it 'returns build with test artifacts' do
      test_build = create(:ci_build, :test_reports, pipeline: pipeline)
      coverage_build = create(:ci_build, :coverage_reports, pipeline: pipeline)
      create(:ci_build, :artifacts, pipeline: pipeline, project: project)

      expect(pipeline.latest_report_builds).to contain_exactly(test_build, coverage_build)
    end

    it 'filters builds by scope' do
      test_build = create(:ci_build, :test_reports, pipeline: pipeline)
      create(:ci_build, :coverage_reports, pipeline: pipeline)

      expect(pipeline.latest_report_builds(Ci::JobArtifact.of_report_type(:test))).to contain_exactly(test_build)
    end

    it 'only returns not retried builds' do
      test_build = create(:ci_build, :test_reports, pipeline: pipeline)
      create(:ci_build, :test_reports, :retried, pipeline: pipeline)

      expect(pipeline.latest_report_builds).to contain_exactly(test_build)
    end
  end

  describe '#latest_report_builds_in_self_and_project_descendants' do
    let_it_be(:pipeline) { create(:ci_pipeline, project: project) }
    let_it_be(:child_pipeline) { create(:ci_pipeline, child_of: pipeline) }
    let_it_be(:grandchild_pipeline) { create(:ci_pipeline, child_of: child_pipeline) }

    it 'returns builds with reports artifacts from pipelines in the hierarcy' do
      parent_build = create(:ci_build, :test_reports, pipeline: pipeline)
      child_build = create(:ci_build, :coverage_reports, pipeline: child_pipeline)
      grandchild_build = create(:ci_build, :codequality_reports, pipeline: grandchild_pipeline)

      expect(pipeline.latest_report_builds_in_self_and_project_descendants).to contain_exactly(parent_build, child_build, grandchild_build)
    end

    it 'filters builds by scope' do
      create(:ci_build, :test_reports, pipeline: pipeline)
      grandchild_build = create(:ci_build, :codequality_reports, pipeline: grandchild_pipeline)

      expect(pipeline.latest_report_builds_in_self_and_project_descendants(Ci::JobArtifact.of_report_type(:codequality))).to contain_exactly(grandchild_build)
    end

    it 'only returns builds that are not retried' do
      create(:ci_build, :codequality_reports, :retried, pipeline: grandchild_pipeline)
      grandchild_build = create(:ci_build, :codequality_reports, pipeline: grandchild_pipeline)

      expect(pipeline.latest_report_builds_in_self_and_project_descendants).to contain_exactly(grandchild_build)
    end
  end

  describe '#has_reports?' do
    subject { pipeline.has_reports?(Ci::JobArtifact.of_report_type(:test)) }

    let(:pipeline) { create(:ci_pipeline, :running) }

    context 'when pipeline has builds with test reports' do
      before do
        create(:ci_build, :test_reports, pipeline: pipeline)
      end

      it { is_expected.to be_truthy }
    end

    context 'when pipeline does not have builds with test reports' do
      before do
        create(:ci_build, :artifacts, pipeline: pipeline)
      end

      it { is_expected.to be_falsey }
    end

    context 'when retried build has test reports but latest one has none' do
      before do
        create(:ci_build, :retried, :test_reports, pipeline: pipeline)
        create(:ci_build, :artifacts, pipeline: pipeline)
      end

      it { is_expected.to be_falsey }
    end
  end

  describe '#complete_and_has_reports?' do
    subject { pipeline.complete_and_has_reports?(Ci::JobArtifact.of_report_type(:test)) }

    context 'when pipeline has builds with test reports' do
      before do
        create(:ci_build, :test_reports, pipeline: pipeline)
      end

      context 'when pipeline status is running' do
        let(:pipeline) { create(:ci_pipeline, :running) }

        context 'with mr_show_reports_immediately flag enabled' do
          before do
            stub_feature_flags(mr_show_reports_immediately: project)
          end

          it { expect(subject).to be_truthy }
        end

        context 'with mr_show_reports_immediately flag disabled' do
          before do
            stub_feature_flags(mr_show_reports_immediately: false)
          end

          it { expect(subject).to be_falsey }
        end
      end

      context 'when pipeline status is success' do
        let(:pipeline) { create(:ci_pipeline, :success) }

        it { is_expected.to be_truthy }
      end
    end

    context 'when pipeline does not have builds with test reports' do
      before do
        create(:ci_build, :artifacts, pipeline: pipeline)
      end

      let(:pipeline) { create(:ci_pipeline, :success) }

      it { is_expected.to be_falsey }
    end

    context 'when retried build has test reports' do
      before do
        create(:ci_build, :retried, :test_reports, pipeline: pipeline)
      end

      let(:pipeline) { create(:ci_pipeline, :success) }

      it { is_expected.to be_falsey }
    end
  end

  describe '#has_coverage_reports?' do
    subject { pipeline.has_coverage_reports? }

    context 'when pipeline has a code coverage artifact' do
      let(:pipeline) { create(:ci_pipeline, :with_coverage_report_artifact, :running) }

      it { expect(subject).to be_truthy }
    end

    context 'when pipeline does not have a code coverage artifact' do
      let(:pipeline) { create(:ci_pipeline, :success) }

      it { expect(subject).to be_falsey }
    end
  end

  describe '#has_codequality_mr_diff_report?' do
    subject { pipeline.has_codequality_mr_diff_report? }

    context 'when pipeline has a codequality mr diff report' do
      let(:pipeline) { create(:ci_pipeline, :with_codequality_mr_diff_report, :running) }

      it { expect(subject).to be_truthy }
    end

    context 'when pipeline does not have a codequality mr diff report' do
      let(:pipeline) { create(:ci_pipeline, :success) }

      it { expect(subject).to be_falsey }
    end
  end

  describe '#can_generate_codequality_reports?' do
    subject { pipeline.can_generate_codequality_reports? }

    context 'when pipeline has builds with codequality reports' do
      before do
        create(:ci_build, :codequality_reports, pipeline: pipeline)
      end

      context 'when pipeline status is running' do
        let(:pipeline) { create(:ci_pipeline, :running) }

        context 'with mr_show_reports_immediately flag enabled' do
          before do
            stub_feature_flags(mr_show_reports_immediately: project)
          end

          it { expect(subject).to be_truthy }
        end

        context 'with mr_show_reports_immediately flag disabled' do
          before do
            stub_feature_flags(mr_show_reports_immediately: false)
          end

          it { expect(subject).to be_falsey }
        end
      end

      context 'when pipeline status is success' do
        let(:pipeline) { create(:ci_pipeline, :success) }

        it 'can generate a codequality report' do
          expect(subject).to be_truthy
        end
      end
    end

    context 'when pipeline does not have builds with codequality reports' do
      before do
        create(:ci_build, :artifacts, pipeline: pipeline)
      end

      let(:pipeline) { create(:ci_pipeline, :success) }

      it { expect(subject).to be_falsey }
    end
  end

  describe '#test_report_summary' do
    subject { pipeline.test_report_summary }

    let(:pipeline) { create(:ci_pipeline, :success) }

    context 'when pipeline has multiple builds with report results' do
      before do
        create(:ci_build, :success, :report_results, name: 'rspec', pipeline: pipeline)
        create(:ci_build, :success, :report_results, name: 'java', pipeline: pipeline)
      end

      it 'returns test report summary with collected data' do
        expect(subject.total).to include(time: 0.84, count: 4, success: 0, failed: 0, skipped: 0, error: 4)
      end
    end

    context 'when pipeline does not have any builds with report results' do
      it 'returns empty test report summary' do
        expect(subject.total).to include(time: 0, count: 0, success: 0, failed: 0, skipped: 0, error: 0)
      end
    end
  end

  describe '#test_reports' do
    subject { pipeline.test_reports }

    let_it_be(:pipeline) { create(:ci_pipeline) }

    context 'when pipeline has multiple builds with test reports' do
      let!(:build_rspec) { create(:ci_build, :success, name: 'rspec', pipeline: pipeline) }
      let!(:build_java) { create(:ci_build, :success, name: 'java', pipeline: pipeline) }

      before do
        create(:ci_job_artifact, :junit, job: build_rspec)
        create(:ci_job_artifact, :junit_with_ant, job: build_java)
      end

      it 'has a test suite for each job' do
        expect(subject.test_suites.keys).to contain_exactly('rspec', 'java')
      end

      it 'returns test reports with collected data' do
        expect(subject.total_count).to be(7)
        expect(subject.success_count).to be(5)
        expect(subject.failed_count).to be(2)
      end

      context 'when builds are retried' do
        let!(:build_rspec) { create(:ci_build, :retried, :success, name: 'rspec', pipeline: pipeline) }
        let!(:build_java) { create(:ci_build, :retried, :success, name: 'java', pipeline: pipeline) }

        it 'does not take retried builds into account' do
          expect(subject.total_count).to be(0)
          expect(subject.success_count).to be(0)
          expect(subject.failed_count).to be(0)
        end
      end
    end

    context 'when the pipeline has parallel builds with test reports' do
      let!(:parallel_build_1) { create(:ci_build, name: 'build 1/2', pipeline: pipeline) }
      let!(:parallel_build_2) { create(:ci_build, name: 'build 2/2', pipeline: pipeline) }

      before do
        create(:ci_job_artifact, :junit, job: parallel_build_1)
        create(:ci_job_artifact, :junit, job: parallel_build_2)
      end

      it 'merges the test suite from parallel builds' do
        expect(subject.test_suites.keys).to contain_exactly('build')
      end
    end

    context 'the pipeline has matrix builds with test reports' do
      let!(:matrix_build_1) { create(:ci_build, :matrix, pipeline: pipeline) }
      let!(:matrix_build_2) { create(:ci_build, :matrix, pipeline: pipeline) }

      before do
        create(:ci_job_artifact, :junit, job: matrix_build_1)
        create(:ci_job_artifact, :junit, job: matrix_build_2)
      end

      it 'keeps separate test suites for each matrix build' do
        expect(subject.test_suites.keys).to contain_exactly(matrix_build_1.name, matrix_build_2.name)
      end
    end

    context 'when pipeline does not have any builds with test reports' do
      it 'returns empty test reports' do
        expect(subject.total_count).to be(0)
      end
    end
  end

  describe '#accessibility_reports' do
    subject { pipeline.accessibility_reports }

    let_it_be(:pipeline) { create(:ci_pipeline) }

    context 'when pipeline has multiple builds with accessibility reports' do
      let(:build_rspec) { create(:ci_build, :success, name: 'rspec', pipeline: pipeline) }
      let(:build_golang) { create(:ci_build, :success, name: 'golang', pipeline: pipeline) }

      before do
        create(:ci_job_artifact, :accessibility, job: build_rspec)
        create(:ci_job_artifact, :accessibility_without_errors, job: build_golang)
      end

      it 'returns accessibility report with collected data' do
        expect(subject.urls.keys).to match_array(
          [
            "https://pa11y.org/",
            "https://about.gitlab.com/"
          ])
      end

      context 'when builds are retried' do
        let(:build_rspec) { create(:ci_build, :retried, :success, name: 'rspec', pipeline: pipeline) }
        let(:build_golang) { create(:ci_build, :retried, :success, name: 'golang', pipeline: pipeline) }

        it 'returns empty urls for accessibility reports' do
          expect(subject.urls).to be_empty
        end
      end
    end

    context 'when pipeline does not have any builds with accessibility reports' do
      it 'returns empty urls for accessibility reports' do
        expect(subject.urls).to be_empty
      end
    end
  end

  describe '#codequality_reports' do
    subject(:codequality_reports) { pipeline.codequality_reports }

    let_it_be(:pipeline) { create(:ci_pipeline) }

    context 'when pipeline has multiple builds with codequality reports' do
      let(:build_rspec) { create(:ci_build, :success, name: 'rspec', pipeline: pipeline) }
      let(:build_golang) { create(:ci_build, :success, name: 'golang', pipeline: pipeline) }

      before do
        create(:ci_job_artifact, :codequality, job: build_rspec)
        create(:ci_job_artifact, :codequality_without_errors, job: build_golang)
      end

      it 'returns codequality report with collected data' do
        expect(codequality_reports.degradations_count).to eq(3)
      end

      context 'when builds are retried' do
        let(:build_rspec) { create(:ci_build, :retried, :success, name: 'rspec', pipeline: pipeline) }
        let(:build_golang) { create(:ci_build, :retried, :success, name: 'golang', pipeline: pipeline) }

        it 'returns a codequality reports without degradations' do
          expect(codequality_reports.degradations).to be_empty
        end
      end
    end

    context 'when pipeline does not have any builds with codequality reports' do
      it 'returns codequality reports without degradations' do
        expect(codequality_reports.degradations).to be_empty
      end
    end
  end

  describe '#uses_needs?' do
    let_it_be(:pipeline) { create(:ci_pipeline) }

    context 'when the scheduling type is `dag`' do
      context 'when the processable is a bridge' do
        it 'returns true' do
          create(:ci_bridge, pipeline: pipeline, scheduling_type: :dag)

          expect(pipeline.uses_needs?).to eq(true)
        end
      end

      context 'when the processable is a build' do
        it 'returns true' do
          create(:ci_build, pipeline: pipeline, scheduling_type: :dag)

          expect(pipeline.uses_needs?).to eq(true)
        end
      end
    end

    context 'when the scheduling type is nil or stage' do
      it 'returns false' do
        create(:ci_build, pipeline: pipeline, scheduling_type: :stage)

        expect(pipeline.uses_needs?).to eq(false)
      end
    end
  end

  describe '#total_size' do
    let(:pipeline) { create(:ci_pipeline) }
    let!(:build_job1) { create(:ci_build, pipeline: pipeline, stage_idx: 0) }
    let!(:build_job2) { create(:ci_build, pipeline: pipeline, stage_idx: 0) }
    let!(:test_job_failed_and_retried) { create(:ci_build, :failed, :retried, pipeline: pipeline, stage_idx: 1) }
    let!(:second_test_job) { create(:ci_build, pipeline: pipeline, stage_idx: 1) }
    let!(:deploy_job) { create(:ci_build, pipeline: pipeline, stage_idx: 2) }

    it 'returns all jobs (including failed and retried)' do
      expect(pipeline.total_size).to eq(5)
    end
  end

  describe '#status' do
    context 'when transitioning to failed' do
      context 'when pipeline has autodevops as source' do
        let(:pipeline) { create(:ci_pipeline, :running, :auto_devops_source) }

        it 'calls autodevops disable service' do
          expect(AutoDevops::DisableWorker).to receive(:perform_async).with(pipeline.id)

          pipeline.drop
        end
      end

      context 'when pipeline has other source' do
        let(:pipeline) { create(:ci_pipeline, :running, :repository_source) }

        it 'does not call auto devops disable service' do
          expect(AutoDevops::DisableWorker).not_to receive(:perform_async)

          pipeline.drop
        end
      end

      context 'with failure_reason' do
        let(:pipeline) { create(:ci_pipeline, :running) }
        let(:failure_reason) { 'config_error' }
        let(:counter) { Gitlab::Metrics.counter(:gitlab_ci_pipeline_failure_reasons, 'desc') }

        it 'increments the counter with the failure_reason' do
          expect { pipeline.drop!(failure_reason) }.to change { counter.get(reason: failure_reason) }.by(1)
        end
      end
    end
  end

  describe '#default_branch?' do
    subject { pipeline.default_branch? }

    context 'when pipeline ref is the default branch of the project' do
      let(:pipeline) do
        build(:ci_empty_pipeline, :created, project: project, ref: project.default_branch)
      end

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

    context 'when pipeline ref is not the default branch of the project' do
      let(:pipeline) do
        build(:ci_empty_pipeline, :created, project: project, ref: 'another_branch')
      end

      it "returns false" do
        expect(subject).to be_falsey
      end
    end
  end

  describe 'fetching a stage by name' do
    let_it_be(:pipeline) { create(:ci_pipeline) }

    let(:stage_name) { 'test' }

    let(:stage) do
      create(:ci_stage,
             pipeline: pipeline,
             project: pipeline.project,
             name: 'test')
    end

    before do
      create_list(:ci_build, 2, pipeline: pipeline, stage: stage.name)
    end

    describe '#stage' do
      subject { pipeline.stage(stage_name) }

      context 'when stage exists' do
        it { is_expected.to eq(stage) }
      end

      context 'when stage does not exist' do
        let(:stage_name) { 'build' }

        it 'returns nil' do
          is_expected.to be_nil
        end
      end
    end
  end

  describe '#full_error_messages' do
    subject { pipeline.full_error_messages }

    before do
      pipeline.valid?
    end

    context 'when pipeline has errors' do
      let(:pipeline) { build(:ci_pipeline, sha: nil, ref: nil) }

      it 'returns the full error messages' do
        is_expected.to eq("Sha can't be blank and Ref can't be blank")
      end
    end

    context 'when pipeline does not have errors' do
      let(:pipeline) { build(:ci_pipeline) }

      it 'returns empty string' do
        is_expected.to be_empty
      end
    end
  end

  describe '#created_successfully?' do
    subject { pipeline.created_successfully? }

    context 'when pipeline is not persisted' do
      let(:pipeline) { build(:ci_pipeline) }

      it { is_expected.to be_falsey }
    end

    context 'when pipeline is persisted' do
      context 'when pipeline has failure reasons' do
        let(:pipeline) { create(:ci_pipeline, failure_reason: :config_error) }

        it { is_expected.to be_falsey }
      end

      context 'when pipeline has no failure reasons' do
        let(:pipeline) { create(:ci_pipeline, failure_reason: nil) }

        it { is_expected.to be_truthy }
      end
    end
  end

  describe '#parent_pipeline' do
    let_it_be_with_reload(:pipeline) { create(:ci_pipeline) }

    context 'when pipeline is triggered by a pipeline from the same project' do
      let_it_be(:upstream_pipeline) { create(:ci_pipeline) }
      let_it_be(:pipeline) { create(:ci_pipeline, child_of: upstream_pipeline) }

      it 'returns the parent pipeline' do
        expect(pipeline.parent_pipeline).to eq(upstream_pipeline)
      end

      it 'is child' do
        expect(pipeline).to be_child
      end
    end

    context 'when pipeline is triggered by a pipeline from another project' do
      let(:pipeline) { create(:ci_pipeline) }
      let!(:upstream_pipeline) { create(:ci_pipeline, project: create(:project), upstream_of: pipeline) }

      it 'returns nil' do
        expect(pipeline.parent_pipeline).to be_nil
      end

      it 'is not child' do
        expect(pipeline).not_to be_child
      end
    end

    context 'when pipeline is not triggered by a pipeline' do
      let_it_be(:pipeline) { create(:ci_pipeline) }

      it 'returns nil' do
        expect(pipeline.parent_pipeline).to be_nil
      end

      it 'is not child' do
        expect(pipeline).not_to be_child
      end
    end
  end

  describe '#child_pipelines' do
    let_it_be(:project) { create(:project) }
    let_it_be_with_reload(:pipeline) { create(:ci_pipeline, project: project) }

    context 'when pipeline triggered other pipelines on same project' do
      let(:downstream_pipeline) { create(:ci_pipeline, project: pipeline.project) }

      before do
        create(:ci_sources_pipeline,
          source_pipeline: pipeline,
          source_project: pipeline.project,
          pipeline: downstream_pipeline,
          project: pipeline.project)
      end

      it 'returns the child pipelines' do
        expect(pipeline.child_pipelines).to eq [downstream_pipeline]
      end

      it 'is parent' do
        expect(pipeline).to be_parent
      end
    end

    context 'when pipeline triggered other pipelines on another project' do
      let(:downstream_pipeline) { create(:ci_pipeline) }

      before do
        create(:ci_sources_pipeline,
          source_pipeline: pipeline,
          source_project: pipeline.project,
          pipeline: downstream_pipeline,
          project: downstream_pipeline.project)
      end

      it 'returns empty array' do
        expect(pipeline.child_pipelines).to be_empty
      end

      it 'is not parent' do
        expect(pipeline).not_to be_parent
      end
    end

    context 'when pipeline did not trigger any pipelines' do
      it 'returns empty array' do
        expect(pipeline.child_pipelines).to be_empty
      end

      it 'is not parent' do
        expect(pipeline).not_to be_parent
      end
    end
  end

  describe 'upstream status interactions' do
    let_it_be_with_reload(:pipeline) { create(:ci_pipeline, :created) }

    context 'when a pipeline has an upstream status' do
      context 'when an upstream status is a bridge' do
        let(:bridge) { create(:ci_bridge, status: :pending) }

        before do
          create(:ci_sources_pipeline, pipeline: pipeline, source_job: bridge)
        end

        describe '#bridge_triggered?' do
          it 'is a pipeline triggered by a bridge' do
            expect(pipeline).to be_bridge_triggered
          end
        end

        describe '#source_job' do
          it 'has a correct source job' do
            expect(pipeline.source_job).to eq bridge
          end
        end

        describe '#source_bridge' do
          it 'has a correct bridge source' do
            expect(pipeline.source_bridge).to eq bridge
          end
        end
      end

      context 'when an upstream status is a build' do
        let(:build) { create(:ci_build) }

        before do
          create(:ci_sources_pipeline, pipeline: pipeline, source_job: build)
        end

        describe '#bridge_triggered?' do
          it 'is a pipeline that has not been triggered by a bridge' do
            expect(pipeline).not_to be_bridge_triggered
          end
        end

        describe '#source_job' do
          it 'has a correct source job' do
            expect(pipeline.source_job).to eq build
          end
        end

        describe '#source_bridge' do
          it 'does not have a bridge source' do
            expect(pipeline.source_bridge).to be_nil
          end
        end
      end
    end
  end

  describe '#source_ref_path' do
    subject { pipeline.source_ref_path }

    let(:pipeline) { create(:ci_pipeline, :created) }

    context 'when pipeline is for a branch' do
      it { is_expected.to eq(Gitlab::Git::BRANCH_REF_PREFIX + pipeline.source_ref.to_s) }
    end

    context 'when pipeline is for a merge request' do
      let(:merge_request) { create(:merge_request, source_project: project) }
      let(:pipeline) { create(:ci_pipeline, project: project, head_pipeline_of: merge_request) }

      it { is_expected.to eq(Gitlab::Git::BRANCH_REF_PREFIX + pipeline.source_ref.to_s) }
    end

    context 'when pipeline is for a tag' do
      let(:pipeline) { create(:ci_pipeline, tag: true) }

      it { is_expected.to eq(Gitlab::Git::TAG_REF_PREFIX + pipeline.source_ref.to_s) }
    end
  end

  describe '#builds_with_coverage' do
    let_it_be(:pipeline) { create(:ci_pipeline, :created) }

    it 'returns builds with coverage only' do
      rspec = create(:ci_build, name: 'rspec', coverage: 97.1, pipeline: pipeline)
      jest  = create(:ci_build, name: 'jest', coverage: 94.1, pipeline: pipeline)
      karma = create(:ci_build, name: 'karma', coverage: nil, pipeline: pipeline)

      builds = pipeline.builds_with_coverage

      expect(builds).to include(rspec, jest)
      expect(builds).not_to include(karma)
    end

    it 'returns only latest builds' do
      obsolete = create(:ci_build, name: "jest", coverage: 10.12, pipeline: pipeline, retried: true)
      retried  = create(:ci_build, name: "jest", coverage: 20.11, pipeline: pipeline)

      builds = pipeline.builds_with_coverage

      expect(builds).to include(retried)
      expect(builds).not_to include(obsolete)
    end
  end

  describe '#self_and_upstreams' do
    subject(:self_and_upstreams) { pipeline.self_and_upstreams }

    let_it_be(:pipeline) { create(:ci_pipeline, :created) }

    context 'when pipeline is not child nor parent' do
      it 'returns just the pipeline itself' do
        expect(self_and_upstreams).to contain_exactly(pipeline)
      end
    end

    context 'when pipeline is child' do
      let(:parent) { create(:ci_pipeline) }
      let(:sibling) { create(:ci_pipeline) }

      before do
        create_source_pipeline(parent, pipeline)
        create_source_pipeline(parent, sibling)
      end

      it 'returns parent and self' do
        expect(self_and_upstreams).to contain_exactly(parent, pipeline)
      end
    end

    context 'when pipeline is parent' do
      let(:child) { create(:ci_pipeline) }

      before do
        create_source_pipeline(pipeline, child)
      end

      it 'returns self' do
        expect(self_and_upstreams).to contain_exactly(pipeline)
      end
    end

    context 'when pipeline is a child of a child pipeline' do
      let_it_be(:pipeline) { create(:ci_pipeline, :created) }

      let(:ancestor) { create(:ci_pipeline) }
      let(:parent) { create(:ci_pipeline) }

      before do
        create_source_pipeline(ancestor, parent)
        create_source_pipeline(parent, pipeline)
      end

      it 'returns self, parent and ancestor' do
        expect(self_and_upstreams).to contain_exactly(ancestor, parent, pipeline)
      end
    end

    context 'when pipeline is a triggered pipeline from a different project' do
      let_it_be(:pipeline) { create(:ci_pipeline, :created) }

      let(:upstream) { create(:ci_pipeline, project: create(:project)) }

      before do
        create_source_pipeline(upstream, pipeline)
      end

      it 'returns upstream and self' do
        expect(self_and_upstreams).to contain_exactly(pipeline, upstream)
      end
    end
  end

  describe '#self_and_downstreams' do
    subject(:self_and_downstreams) { pipeline.self_and_downstreams }

    let(:pipeline) { create(:ci_pipeline, :created) }

    context 'when pipeline is not child nor parent' do
      it 'returns just the pipeline itself' do
        expect(self_and_downstreams).to contain_exactly(pipeline)
      end
    end

    context 'when pipeline is child' do
      let(:parent)    { create(:ci_pipeline) }
      let!(:pipeline) { create(:ci_pipeline, child_of: parent) }

      it 'returns self and no ancestors' do
        expect(self_and_downstreams).to contain_exactly(pipeline)
      end
    end

    context 'when pipeline is parent' do
      let(:child) { create(:ci_pipeline, child_of: pipeline) }

      it 'returns self and child' do
        expect(self_and_downstreams).to contain_exactly(pipeline, child)
      end
    end

    context 'when pipeline is a grandparent pipeline' do
      let(:child)      { create(:ci_pipeline, child_of: pipeline) }
      let(:grandchild) { create(:ci_pipeline, child_of: child) }

      it 'returns self, child, and grandchild' do
        expect(self_and_downstreams).to contain_exactly(pipeline, child, grandchild)
      end
    end

    context 'when pipeline is a triggered pipeline from a different project' do
      let(:downstream) { create(:ci_pipeline) }

      before do
        create_source_pipeline(pipeline, downstream)
      end

      it 'returns self and cross-project downstream' do
        expect(self_and_downstreams).to contain_exactly(pipeline, downstream)
      end
    end
  end

  describe '#self_and_project_ancestors' do
    subject(:self_and_project_ancestors) { pipeline.self_and_project_ancestors }

    context 'when pipeline is child' do
      let(:pipeline) { create(:ci_pipeline, :created) }
      let(:parent) { create(:ci_pipeline) }
      let(:sibling) { create(:ci_pipeline) }

      before do
        create_source_pipeline(parent, pipeline)
        create_source_pipeline(parent, sibling)
      end

      it 'returns parent and self' do
        expect(self_and_project_ancestors).to contain_exactly(parent, pipeline)
      end
    end

    context 'when pipeline is a triggered pipeline from a different project' do
      let_it_be(:pipeline) { create(:ci_pipeline, :created) }

      let(:upstream) { create(:ci_pipeline, project: create(:project)) }

      before do
        create_source_pipeline(upstream, pipeline)
      end

      it 'returns only self' do
        expect(self_and_project_ancestors).to contain_exactly(pipeline)
      end
    end
  end

  describe '#complete_hierarchy_count' do
    context 'with a combination of ancestor, descendant and sibling pipelines' do
      let!(:pipeline)            { create(:ci_pipeline) }
      let!(:child_pipeline)      { create(:ci_pipeline, child_of: pipeline) }
      let!(:sibling_pipeline)    { create(:ci_pipeline, child_of: pipeline) }
      let!(:grandchild_pipeline) { create(:ci_pipeline, child_of: child_pipeline) }

      it 'counts the whole tree' do
        expect(sibling_pipeline.complete_hierarchy_count).to eq(4)
      end
    end
  end

  describe '#reset_source_bridge!' do
    subject(:reset_bridge) { pipeline.reset_source_bridge!(current_user) }

    context 'with downstream pipeline' do
      let_it_be(:owner) { project.first_owner }

      let!(:first_upstream_pipeline) { create(:ci_pipeline, user: owner) }
      let_it_be_with_reload(:pipeline) { create(:ci_pipeline, :created, project: project, user: owner) }

      let!(:bridge) do
        create_bridge(
          upstream: first_upstream_pipeline,
          downstream: pipeline,
          depends: true
        )
      end

      context 'when the user has permissions for the processable' do
        let(:current_user) { owner }

        context 'when the downstream has strategy: depend' do
          it 'marks source bridge as pending' do
            expect { reset_bridge }
              .to change { bridge.reload.status }
              .to('pending')
          end

          context 'with subsequent jobs' do
            let!(:after_bridge_job) { add_bridge_dependant_job }
            let!(:bridge_dependant_dag_job) { add_bridge_dependant_dag_job }

            it 'changes subsequent job statuses to created' do
              expect { reset_bridge }
                .to change { after_bridge_job.reload.status }
                .from('skipped').to('created')
                .and change { bridge_dependant_dag_job.reload.status }
                .from('skipped').to('created')
            end

            context 'when the user is not the build user' do
              let(:current_user) { create(:user) }

              before do
                project.add_maintainer(current_user)
              end

              it 'changes subsequent jobs user' do
                expect { reset_bridge }
                  .to change { after_bridge_job.reload.user }
                  .from(owner).to(current_user)
                  .and change { bridge_dependant_dag_job.reload.user }
                  .from(owner).to(current_user)
              end
            end
          end

          context 'when the upstream pipeline pipeline has a dependent upstream pipeline' do
            let(:upstream_of_upstream) { create(:ci_pipeline, project: create(:project)) }
            let!(:upstream_bridge) do
              create_bridge(
                upstream: upstream_of_upstream,
                downstream: first_upstream_pipeline,
                depends: true
              )
            end

            it 'marks all source bridges as pending' do
              expect { reset_bridge }
                .to change { bridge.reload.status }
                .from('skipped').to('pending')
                .and change { upstream_bridge.reload.status }
                .from('skipped').to('pending')
            end
          end

          context 'without strategy: depend' do
            let!(:upstream_pipeline) { create(:ci_pipeline) }
            let!(:bridge) do
              create_bridge(
                upstream: first_upstream_pipeline,
                downstream: pipeline,
                depends: false
              )
            end

            it 'does not touch source bridge' do
              expect { reset_bridge }.to not_change { bridge.status }
            end

            context 'when the upstream pipeline has a dependent upstream pipeline' do
              let!(:upstream_bridge) do
                create_bridge(
                  upstream: create(:ci_pipeline, project: create(:project)),
                  downstream: first_upstream_pipeline,
                  depends: true
                )
              end

              it 'does not touch any source bridge' do
                expect { reset_bridge }.to not_change { bridge.status }
                  .and not_change { upstream_bridge.status }
              end
            end
          end
        end

        context 'when the current user is not the bridge user' do
          let(:current_user) { create(:user) }

          before do
            project.add_maintainer(current_user)
          end

          it 'changes bridge user to current user' do
            expect { reset_bridge }
              .to change { bridge.reload.user }
              .from(owner).to(current_user)
          end
        end
      end

      context 'when the user does not have permissions for the processable' do
        let(:current_user) { create(:user) }

        it 'does not change bridge status' do
          expect { reset_bridge }.to not_change { bridge.status }
        end

        context 'with subsequent jobs' do
          let!(:after_bridge_job) { add_bridge_dependant_job }
          let!(:bridge_dependant_dag_job) { add_bridge_dependant_dag_job }

          it 'does not change job statuses' do
            expect { reset_bridge }.to not_change { after_bridge_job.reload.status }
              .and not_change { bridge_dependant_dag_job.reload.status }
          end
        end

        context 'when the current user is not the bridge user' do
          let(:current_user) { create(:user) }

          it 'does not change bridge user' do
            expect { reset_bridge }
              .to not_change { bridge.reload.user }
          end
        end
      end
    end

    private

    def add_bridge_dependant_job
      create(:ci_build, :skipped, pipeline: first_upstream_pipeline, stage_idx: bridge.stage_idx + 1, user: owner)
    end

    def add_bridge_dependant_dag_job
      create(:ci_build, :skipped, name: 'dependant-build-1', pipeline: first_upstream_pipeline, user: owner).tap do |build|
        create(:ci_build_need, build: build, name: bridge.name)
      end
    end

    def create_bridge(upstream:, downstream:, depends: false)
      options = depends ? { trigger: { strategy: 'depend' } } : {}

      bridge = create(:ci_bridge, pipeline: upstream, status: 'skipped', options: options, user: owner)
      create(:ci_sources_pipeline, pipeline: downstream, source_job: bridge)

      bridge
    end
  end

  describe 'test failure history processing' do
    let(:pipeline) { build(:ci_pipeline, :created) }

    it 'performs the service asynchronously when the pipeline is completed' do
      service = double

      expect(Ci::TestFailureHistoryService).to receive(:new).with(pipeline).and_return(service)
      expect(service).to receive_message_chain(:async, :perform_if_needed)

      pipeline.succeed!
    end
  end

  describe '#latest_test_report_builds' do
    let_it_be(:pipeline) { create(:ci_pipeline, :created) }

    it 'returns pipeline builds with test report artifacts' do
      test_build = create(:ci_build, :test_reports, pipeline: pipeline)
      create(:ci_build, :artifacts, pipeline: pipeline, project: project)

      expect(pipeline.latest_test_report_builds).to contain_exactly(test_build)
    end

    it 'preloads project on each build to avoid N+1 queries' do
      create(:ci_build, :test_reports, pipeline: pipeline)

      control_count = ActiveRecord::QueryRecorder.new do
        pipeline.latest_test_report_builds.map(&:project).map(&:full_path)
      end

      multi_build_pipeline = create(:ci_empty_pipeline, :created)
      create(:ci_build, :test_reports, pipeline: multi_build_pipeline, project: project)
      create(:ci_build, :test_reports, pipeline: multi_build_pipeline, project: project)

      expect { multi_build_pipeline.latest_test_report_builds.map(&:project).map(&:full_path) }
        .not_to exceed_query_limit(control_count)
    end
  end

  describe '#builds_with_failed_tests' do
    let_it_be(:pipeline) { create(:ci_pipeline, :created) }

    it 'returns pipeline builds with test report artifacts' do
      failed_build = create(:ci_build, :failed, :test_reports, pipeline: pipeline)
      create(:ci_build, :success, :test_reports, pipeline: pipeline)

      expect(pipeline.builds_with_failed_tests).to contain_exactly(failed_build)
    end

    it 'supports limiting the number of builds to fetch' do
      create(:ci_build, :failed, :test_reports, pipeline: pipeline)
      create(:ci_build, :failed, :test_reports, pipeline: pipeline)

      expect(pipeline.builds_with_failed_tests(limit: 1).count).to eq(1)
    end

    it 'preloads project on each build to avoid N+1 queries' do
      create(:ci_build, :failed, :test_reports, pipeline: pipeline)

      control_count = ActiveRecord::QueryRecorder.new do
        pipeline.builds_with_failed_tests.map(&:project).map(&:full_path)
      end

      multi_build_pipeline = create(:ci_empty_pipeline, :created)
      create(:ci_build, :failed, :test_reports, pipeline: multi_build_pipeline)
      create(:ci_build, :failed, :test_reports, pipeline: multi_build_pipeline)

      expect { multi_build_pipeline.builds_with_failed_tests.map(&:project).map(&:full_path) }
        .not_to exceed_query_limit(control_count)
    end
  end

  describe '#build_matchers' do
    let_it_be(:user) { create(:user) }
    let_it_be(:pipeline) { create(:ci_pipeline, user: user) }
    let_it_be(:builds) { create_list(:ci_build, 2, pipeline: pipeline, project: pipeline.project, user: user) }

    let(:project) { pipeline.project }

    subject(:matchers) { pipeline.build_matchers }

    it 'returns build matchers' do
      expect(matchers.size).to eq(1)
      expect(matchers).to all be_a(Gitlab::Ci::Matching::BuildMatcher)
      expect(matchers.first.build_ids).to match_array(builds.map(&:id))
    end

    context 'with retried builds' do
      let(:retried_build) { builds.first }

      before do
        stub_not_protect_default_branch
        project.add_developer(user)

        retried_build.cancel!
        Ci::RetryJobService.new(project, user).execute(retried_build)[:job]
      end

      it 'does not include retried builds' do
        expect(matchers.size).to eq(1)
        expect(matchers.first.build_ids).not_to include(retried_build.id)
      end
    end
  end

  describe '#cluster_agent_authorizations' do
    let(:pipeline) { create(:ci_empty_pipeline, :created) }
    let(:authorization) { instance_double(Clusters::Agents::GroupAuthorization) }
    let(:finder) { double(execute: [authorization]) }

    it 'retrieves authorization records from the finder and caches the result' do
      expect(Clusters::AgentAuthorizationsFinder).to receive(:new).once
        .with(pipeline.project)
        .and_return(finder)

      expect(pipeline.cluster_agent_authorizations).to contain_exactly(authorization)
      expect(pipeline.cluster_agent_authorizations).to contain_exactly(authorization) # cached
    end
  end

  describe '#has_test_reports?' do
    subject { pipeline.has_test_reports? }

    let(:pipeline) { create(:ci_pipeline, :success, :with_test_reports) }

    context 'when artifacts are not expired' do
      it { is_expected.to be_truthy }
    end

    context 'when artifacts are expired' do
      before do
        pipeline.job_artifacts.first.update!(expire_at: Date.yesterday)
      end

      it { is_expected.to be_truthy }
    end

    context 'when artifacts are removed' do
      before do
        pipeline.job_artifacts.each(&:destroy)
      end

      it { is_expected.to be_falsey }
    end

    context 'when the pipeline is still running and with test reports' do
      let(:pipeline) { create(:ci_pipeline, :running, :with_test_reports) }

      it { is_expected.to be_truthy }
    end
  end

  it_behaves_like 'it has loose foreign keys' do
    let(:factory_name) { :ci_pipeline }
  end

  context 'loose foreign key on ci_pipelines.user_id' do
    it_behaves_like 'cleanup by a loose foreign key' do
      let!(:model) { create(:ci_pipeline, user: create(:user)) }
      let!(:parent) { model.user }
    end
  end

  describe 'tags count' do
    let_it_be_with_refind(:pipeline) do
      create(:ci_empty_pipeline, project: project)
    end

    it { expect(pipeline.tags_count).to eq(0) }
    it { expect(pipeline.distinct_tags_count).to eq(0) }

    context 'with builds' do
      before do
        create(:ci_build, pipeline: pipeline, tag_list: %w[a b])
        create(:ci_build, pipeline: pipeline, tag_list: %w[b c])
      end

      it { expect(pipeline.tags_count).to eq(4) }
      it { expect(pipeline.distinct_tags_count).to eq(3) }
    end
  end

  context 'loose foreign key on ci_pipelines.merge_request_id' do
    it_behaves_like 'cleanup by a loose foreign key' do
      let!(:parent) { create(:merge_request) }
      let!(:model) { create(:ci_pipeline, merge_request: parent) }
    end
  end

  context 'loose foreign key on ci_pipelines.project_id' do
    it_behaves_like 'cleanup by a loose foreign key' do
      let!(:parent) { create(:project) }
      let!(:model) { create(:ci_pipeline, project: parent) }
    end
  end

  describe '#jobs_git_ref' do
    subject { pipeline.jobs_git_ref }

    context 'when tag is true' do
      let(:pipeline) { build(:ci_pipeline, tag: true) }

      it 'returns a tag ref' do
        is_expected.to start_with(Gitlab::Git::TAG_REF_PREFIX)
      end
    end

    context 'when tag is false' do
      let(:pipeline) { build(:ci_pipeline, tag: false) }

      it 'returns a branch ref' do
        is_expected.to start_with(Gitlab::Git::BRANCH_REF_PREFIX)
      end
    end

    context 'when tag is nil' do
      let(:pipeline) { build(:ci_pipeline, tag: nil) }

      it 'returns a branch ref' do
        is_expected.to start_with(Gitlab::Git::BRANCH_REF_PREFIX)
      end
    end

    context 'when it is triggered by a merge request' do
      let(:merge_request) { create(:merge_request, :with_detached_merge_request_pipeline) }
      let(:pipeline) { merge_request.pipelines_for_merge_request.first }

      it 'returns nil' do
        is_expected.to be_nil
      end
    end
  end

  describe '#age_in_minutes' do
    let(:pipeline) { build(:ci_pipeline) }

    context 'when pipeline has not been persisted' do
      it 'returns zero' do
        expect(pipeline.age_in_minutes).to eq 0
      end
    end

    context 'when pipeline has been saved' do
      it 'returns pipeline age in minutes' do
        pipeline.save!

        travel_to(pipeline.created_at + 2.hours) do
          expect(pipeline.age_in_minutes).to eq 120
        end
      end

      context 'when pipeline has no created_at' do
        before do
          pipeline.update!(created_at: nil)
        end

        it 'returns zero' do
          expect(pipeline.age_in_minutes).to eq 0
        end
      end
    end

    context 'when pipeline has been loaded without all attributes' do
      it 'raises an exception' do
        pipeline.save!

        pipeline_id = Ci::Pipeline.where(id: pipeline.id).select(:id).first

        expect { pipeline_id.age_in_minutes }.to raise_error(ArgumentError)
      end
    end
  end

  describe '#merge_request_diff' do
    context 'when the pipeline has no merge request' do
      it 'is nil' do
        pipeline = build(:ci_empty_pipeline)

        expect(pipeline.merge_request_diff).to be_nil
      end
    end

    context 'when the pipeline has a merge request' do
      context 'when the pipeline is a merged result pipeline' do
        it 'returns the diff for the source sha' do
          pipeline = create(:ci_pipeline, :merged_result_pipeline)

          expect(pipeline.merge_request_diff.head_commit_sha).to eq(pipeline.source_sha)
        end
      end

      context 'when the pipeline is not a merged result pipeline' do
        it 'returns the diff for the pipeline sha' do
          pipeline = create(:ci_pipeline, merge_request: create(:merge_request))

          expect(pipeline.merge_request_diff.head_commit_sha).to eq(pipeline.sha)
        end
      end
    end
  end

  describe 'partitioning' do
    let(:pipeline) { build(:ci_pipeline, partition_id: nil) }

    before do
      allow(described_class).to receive(:current_partition_value) { 123 }
    end

    it 'sets partition_id to the current partition value' do
      expect { pipeline.valid? }.to change(pipeline, :partition_id).to(123)
    end

    context 'when it is already set' do
      let(:pipeline) { build(:ci_pipeline, partition_id: 125) }

      it 'does not change the partition_id value' do
        expect { pipeline.valid? }.not_to change(pipeline, :partition_id)
      end
    end

    context 'without current partition value' do
      before do
        allow(described_class).to receive(:current_partition_value) {}
      end

      it { is_expected.to validate_presence_of(:partition_id) }

      it 'does not change the partition_id value' do
        expect { pipeline.valid? }.not_to change(pipeline, :partition_id)
      end
    end
  end

  describe '#notes=' do
    context 'when notes already exist' do
      it 'does not create duplicate notes', :aggregate_failures do
        time = Time.zone.now
        pipeline = create(:ci_pipeline, user: user, project: project)
        note = Note.new(
          note: 'note',
          noteable_type: 'Commit',
          noteable_id: pipeline.id,
          commit_id: pipeline.id,
          author_id: user.id,
          project_id: pipeline.project_id,
          created_at: time
        )
        another_note = note.dup.tap { |note| note.note = 'another note' }

        expect(project.notes.for_commit_id(pipeline.sha).count).to eq(0)

        pipeline.notes = [note]

        expect(project.notes.for_commit_id(pipeline.sha).count).to eq(1)

        pipeline.notes = [note, note, another_note]

        expect(project.notes.for_commit_id(pipeline.sha).count).to eq(2)
        expect(project.notes.for_commit_id(pipeline.sha).pluck(:note)).to contain_exactly(note.note, another_note.note)
      end
    end
  end

  describe '#has_erasable_artifacts?' do
    subject { pipeline.has_erasable_artifacts? }

    context 'when pipeline is not complete' do
      let(:pipeline) { create(:ci_pipeline, :running, :with_job) }

      context 'and has erasable artifacts' do
        before do
          create(:ci_job_artifact, :archive, job: pipeline.builds.first)
        end

        it { is_expected.to be_falsey }
      end
    end

    context 'when pipeline is complete' do
      let(:pipeline) { create(:ci_pipeline, :success, :with_job) }

      context 'and has no artifacts' do
        it { is_expected.to be_falsey }
      end

      Ci::JobArtifact.erasable_file_types.each do |type|
        context "and has an artifact of type #{type}" do
          before do
            create(
              :ci_job_artifact,
              file_format: ::Ci::JobArtifact::TYPE_AND_FORMAT_PAIRS[type.to_sym],
              file_type: type,
              job: pipeline.builds.first
            )
          end

          it { is_expected.to be_truthy }
        end
      end
    end
  end
end