# frozen_string_literal: true

require 'spec_helper'

RSpec.describe Group, feature_category: :groups_and_projects do
  include ReloadHelpers
  include StubGitlabCalls
  include AdminModeHelper
  using RSpec::Parameterized::TableSyntax

  let_it_be(:organization) { create(:organization) }
  let!(:group) { create(:group) }

  let(:developer_access) { Gitlab::Access::DEVELOPER_PROJECT_ACCESS }
  let(:maintainer_access) { Gitlab::Access::MAINTAINER_PROJECT_ACCESS }
  let(:owner_access) { Gitlab::Access::OWNER_PROJECT_ACCESS }
  let(:admin_access) { Gitlab::Access::ADMINISTRATOR_PROJECT_ACCESS }
  let(:no_one_access) { Gitlab::Access::NO_ONE_PROJECT_ACCESS }

  describe 'associations' do
    it { is_expected.to have_many :projects }
    it { is_expected.to have_many(:all_group_members).dependent(:destroy) }
    it { is_expected.to have_many(:all_owner_members) }
    it { is_expected.to have_many(:group_members).dependent(:destroy) }
    it { is_expected.to have_many(:non_invite_group_members).class_name('GroupMember') }
    it { is_expected.to have_many(:request_group_members).class_name('GroupMember').inverse_of(:group) }
    it { is_expected.to have_many(:namespace_members) }
    it { is_expected.to have_many(:users).through(:group_members) }
    it { is_expected.to have_many(:owners).through(:all_owner_members) }
    it { is_expected.to have_many(:requesters).dependent(:destroy) }
    it { is_expected.to have_many(:namespace_requesters) }
    it { is_expected.to have_many(:members_and_requesters) }
    it { is_expected.to have_many(:namespace_members_and_requesters) }
    it { is_expected.to have_many(:project_group_links).dependent(:destroy) }
    it { is_expected.to have_many(:shared_projects).through(:project_group_links) }
    it { is_expected.to have_many(:notification_settings).dependent(:destroy) }
    it { is_expected.to have_many(:labels).class_name('GroupLabel') }
    it { is_expected.to have_many(:variables).class_name('Ci::GroupVariable') }
    it { is_expected.to have_many(:uploads) }
    it { is_expected.to have_one(:chat_team) }
    it { is_expected.to have_one(:deletion_schedule) }
    it { is_expected.to have_many(:custom_attributes).class_name('GroupCustomAttribute') }
    it { is_expected.to have_many(:badges).class_name('GroupBadge') }
    it { is_expected.to have_many(:cluster_groups).class_name('Clusters::Group') }
    it { is_expected.to have_many(:clusters).class_name('Clusters::Cluster') }
    it { is_expected.to have_many(:container_repositories) }
    it { is_expected.to have_many(:milestones) }
    it { is_expected.to have_many(:group_deploy_keys) }
    it { is_expected.to have_many(:integrations) }
    it { is_expected.to have_one(:dependency_proxy_setting) }
    it { is_expected.to have_one(:dependency_proxy_image_ttl_policy) }
    it { is_expected.to have_many(:dependency_proxy_blobs) }
    it { is_expected.to have_many(:dependency_proxy_manifests) }
    it { is_expected.to have_many(:debian_distributions).class_name('Packages::Debian::GroupDistribution').dependent(:destroy) }
    it { is_expected.to have_many(:daily_build_group_report_results).class_name('Ci::DailyBuildGroupReportResult') }
    it { is_expected.to have_many(:group_callouts).class_name('Users::GroupCallout').with_foreign_key(:group_id) }
    it { is_expected.to have_many(:import_export_uploads).dependent(:destroy) }

    it { is_expected.to have_many(:bulk_import_exports).class_name('BulkImports::Export') }

    it do
      is_expected.to have_many(:bulk_import_entities).class_name('BulkImports::Entity')
        .with_foreign_key(:namespace_id).inverse_of(:group)
    end

    it { is_expected.to have_many(:contacts).class_name('CustomerRelations::Contact') }
    it { is_expected.to have_many(:crm_organizations).class_name('CustomerRelations::Organization') }
    it { is_expected.to have_many(:crm_targets).class_name('Group::CrmSettings').inverse_of(:source_group) }
    it { is_expected.to have_many(:protected_branches).inverse_of(:group).with_foreign_key(:namespace_id) }
    it { is_expected.to have_one(:crm_settings) }
    it { is_expected.to have_one(:group_feature) }
    it { is_expected.to have_one(:harbor_integration) }

    describe '#non_invite_group_members' do
      let_it_be(:group) { create(:group) }
      let_it_be(:non_requested_member) { create(:group_member, group: group) }
      let_it_be(:non_invited_member) { create(:group_member, group: group) }
      let_it_be(:non_minimal_access_member) { create(:group_member, group: group) }

      before do
        create(:group_member, :access_request, group: group)
        create(:group_member, :invited, group: group)
        create(:group_member, :minimal_access, group: group)
      end

      it 'includes the correct members' do
        expect(group.non_invite_group_members).to contain_exactly(non_invited_member, non_requested_member, non_minimal_access_member)
      end
    end

    describe '#request_group_members' do
      let_it_be(:group) { create(:group) }
      let_it_be(:requested_member) { create(:group_member, :access_request, group: group) }

      before do
        create(:group_member, group: group) # regular member
        create(:group_member, :invited, group: group)
        create(:group_member, :minimal_access, group: group)
      end

      it 'includes the correct members' do
        expect(group.request_group_members).to contain_exactly(requested_member)
      end
    end

    describe '#namespace_members' do
      let(:requester) { create(:user) }
      let(:developer) { create(:user) }

      before do
        group.request_access(requester)
        group.add_developer(developer)
      end

      it 'includes the correct users' do
        expect(group.namespace_members).to include Member.find_by(user: developer)
        expect(group.namespace_members).not_to include Member.find_by(user: requester)
      end

      it 'is equivelent to #group_members' do
        expect(group.namespace_members).to eq group.group_members
      end

      it_behaves_like 'query without source filters' do
        subject { group.namespace_members }
      end
    end

    describe '#namespace_requesters' do
      let(:requester) { create(:user) }
      let(:developer) { create(:user) }

      before do
        group.request_access(requester)
        group.add_developer(developer)
      end

      it 'includes the correct users' do
        expect(group.namespace_requesters).to include Member.find_by(user: requester)
        expect(group.namespace_requesters).not_to include Member.find_by(user: developer)
      end

      it 'is equivalent to #requesters' do
        expect(group.namespace_requesters).to eq group.requesters
      end

      it_behaves_like 'query without source filters' do
        subject { group.namespace_requesters }
      end
    end

    describe '#namespace_members_and_requesters' do
      let_it_be_with_reload(:group) { create(:group) }
      let_it_be(:requester) { create(:user) }
      let_it_be(:developer) { create(:user) }
      let_it_be(:invited_member) { create(:group_member, :invited, :owner, group: group) }

      before do
        group.request_access(requester)
        group.add_developer(developer)
      end

      it 'includes the correct users' do
        expect(group.namespace_members_and_requesters).to include(
          Member.find_by(user: requester),
          Member.find_by(user: developer),
          Member.find(invited_member.id)
        )
      end

      it 'is equivalent to #members_and_requesters' do
        expect(group.namespace_members_and_requesters).to match_array group.members_and_requesters
      end

      it_behaves_like 'query without source filters' do
        subject { group.namespace_members_and_requesters }
      end
    end

    shared_examples 'polymorphic membership relationship' do
      it do
        expect(membership.attributes).to include(
          'source_type' => 'Namespace',
          'source_id' => group.id
        )
      end
    end

    shared_examples 'member_namespace membership relationship' do
      it do
        expect(membership.attributes).to include(
          'member_namespace_id' => group.id
        )
      end
    end

    describe '#namespace_members setters' do
      let(:user) { create(:user) }
      let(:membership) { group.namespace_members.create!(user: user, access_level: Gitlab::Access::DEVELOPER) }

      it { expect(membership).to be_instance_of(GroupMember) }
      it { expect(membership.user).to eq user }
      it { expect(membership.group).to eq group }
      it { expect(membership.requested_at).to be_nil }

      it_behaves_like 'polymorphic membership relationship'
      it_behaves_like 'member_namespace membership relationship'
    end

    describe '#namespace_requesters setters' do
      let(:requested_at) { Time.current }
      let(:user) { create(:user) }
      let(:membership) do
        group.namespace_requesters.create!(user: user, requested_at: requested_at, access_level: Gitlab::Access::DEVELOPER)
      end

      it { expect(membership).to be_instance_of(GroupMember) }
      it { expect(membership.user).to eq user }
      it { expect(membership.group).to eq group }
      it { expect(membership.requested_at).to eq requested_at }

      it_behaves_like 'polymorphic membership relationship'
      it_behaves_like 'member_namespace membership relationship'
    end

    describe '#namespace_members_and_requesters setters' do
      let(:requested_at) { Time.current }
      let(:user) { create(:user) }
      let(:membership) do
        group.namespace_members_and_requesters.create!(
          user: user, requested_at: requested_at, access_level: Gitlab::Access::DEVELOPER
        )
      end

      it { expect(membership).to be_instance_of(GroupMember) }
      it { expect(membership.user).to eq user }
      it { expect(membership.group).to eq group }
      it { expect(membership.requested_at).to eq requested_at }

      it_behaves_like 'polymorphic membership relationship'
      it_behaves_like 'member_namespace membership relationship'
    end

    describe '#members & #requesters' do
      let_it_be(:requester) { create(:user) }
      let_it_be(:developer) { create(:user) }

      before do
        group.request_access(requester)
        group.add_developer(developer)
      end

      it_behaves_like 'members and requesters associations' do
        let(:namespace) { group }
      end
    end
  end

  describe 'modules' do
    subject { described_class }

    it { is_expected.to include_module(Referable) }
  end

  describe 'validations' do
    let_it_be(:private_organization) { create(:organization, :private) }
    let_it_be(:public_organization) { create(:organization, :public) }

    it { is_expected.to validate_presence_of :name }
    it { is_expected.not_to allow_value('colon:in:path').for(:path) } # This is to validate that a specially crafted name cannot bypass a pattern match. See !72555
    it { is_expected.to allow_value('group test_4').for(:name) }
    it { is_expected.not_to allow_value('test/../foo').for(:name) }
    it { is_expected.not_to allow_value('<script>alert("Attack!")</script>').for(:name) }
    it { is_expected.to validate_presence_of :path }
    it { is_expected.not_to validate_presence_of :owner }
    it { is_expected.to validate_presence_of :two_factor_grace_period }
    it { is_expected.to validate_numericality_of(:two_factor_grace_period).is_greater_than_or_equal_to(0) }

    context 'validating the parent of a group' do
      context 'when the group has no parent' do
        it 'allows a group to have no parent associated with it' do
          group = build(:group)

          expect(group).to be_valid
        end
      end

      context 'when the group has a parent' do
        it 'does not allow a group to have a namespace as its parent' do
          group = build(:group, parent: build(:namespace))

          expect(group).not_to be_valid
          expect(group.errors[:parent_id].first).to eq('user namespace cannot be the parent of another namespace')
        end

        it 'allows a group to have another group as its parent' do
          group = build(:group, parent: build(:group))

          expect(group).to be_valid
        end

        it 'does not allow a subgroup to have the same name as an existing subgroup' do
          sub_group1 = create(:group, parent: group, name: "SG", path: 'api')
          sub_group2 = described_class.new(parent: group, name: "SG", path: 'api2', organization: organization)

          expect(sub_group1).to be_valid
          expect(sub_group2).not_to be_valid
          expect(sub_group2.errors.full_messages.to_sentence).to eq('Name has already been taken')
        end
      end
    end

    describe 'path validation' do
      it 'rejects paths reserved on the root namespace when the group has no parent' do
        group = build(:group, path: 'api')

        expect(group).not_to be_valid
      end

      it 'allows root paths when the group has a parent' do
        group = build(:group, path: 'api', parent: create(:group))

        expect(group).to be_valid
      end

      it 'rejects any wildcard paths when not a top level group' do
        group = build(:group, path: 'tree', parent: create(:group))

        expect(group).not_to be_valid
      end

      it 'rejects paths already assigned to any pages unique domain' do
        # Simulate the existing domain being in use
        create(:project_setting, pages_unique_domain: 'existing-domain')

        group = build(:group, path: 'existing-domain')

        expect(group).not_to be_valid
        expect(group.errors.full_messages.to_sentence).to eq('Group URL has already been taken')
      end
    end

    describe '#notification_settings' do
      let(:user) { create(:user) }
      let(:group) { create(:group) }
      let(:sub_group) { create(:group, parent_id: group.id) }

      before do
        group.add_developer(user)
        sub_group.add_maintainer(user)
      end

      it 'also gets notification settings from parent groups' do
        expect(sub_group.notification_settings.size).to eq(2)
        expect(sub_group.notification_settings).to include(group.notification_settings.first)
      end

      context 'when sub group is deleted' do
        it 'does not delete parent notification settings' do
          expect do
            sub_group.destroy!
          end.to change { NotificationSetting.count }.by(-1)
        end
      end
    end

    describe '#notification_email_for' do
      let(:user) { create(:user) }
      let(:group) { create(:group) }
      let(:subgroup) { create(:group, parent: group) }

      let(:group_notification_email) { 'user+group@example.com' }
      let(:subgroup_notification_email) { 'user+subgroup@example.com' }

      before do
        create(:email, :confirmed, user: user, email: group_notification_email)
        create(:email, :confirmed, user: user, email: subgroup_notification_email)
      end

      subject { subgroup.notification_email_for(user) }

      context 'when both group notification emails are set' do
        it 'returns subgroup notification email' do
          create(:notification_setting, user: user, source: group, notification_email: group_notification_email)
          create(:notification_setting, user: user, source: subgroup, notification_email: subgroup_notification_email)

          is_expected.to eq(subgroup_notification_email)
        end
      end

      context 'when subgroup notification email is blank' do
        it 'returns parent group notification email' do
          create(:notification_setting, user: user, source: group, notification_email: group_notification_email)
          create(:notification_setting, user: user, source: subgroup, notification_email: '')

          is_expected.to eq(group_notification_email)
        end
      end

      context 'when only the parent group notification email is set' do
        it 'returns parent group notification email' do
          create(:notification_setting, user: user, source: group, notification_email: group_notification_email)

          is_expected.to eq(group_notification_email)
        end
      end
    end

    describe '#visibility_level_allowed_by_parent' do
      let(:parent) { create(:group, :internal) }
      let(:sub_group) { build(:group, parent_id: parent.id) }

      context 'without a parent' do
        it 'is valid' do
          sub_group.parent_id = nil

          expect(sub_group).to be_valid
        end
      end

      context 'with a parent' do
        context 'when visibility of sub group is greater than the parent' do
          it 'is invalid' do
            sub_group.visibility_level = Gitlab::VisibilityLevel::PUBLIC

            expect(sub_group).to be_invalid
          end
        end

        context 'when visibility of sub group is lower or equal to the parent' do
          [Gitlab::VisibilityLevel::INTERNAL, Gitlab::VisibilityLevel::PRIVATE].each do |level|
            it 'is valid' do
              sub_group.visibility_level = level

              expect(sub_group).to be_valid
            end
          end
        end
      end
    end

    describe '#visibility_level_allowed_by_projects' do
      let!(:internal_group) { create(:group, :internal) }
      let!(:internal_project) { create(:project, :internal, group: internal_group) }

      context 'when group has a lower visibility' do
        it 'is invalid' do
          internal_group.visibility_level = Gitlab::VisibilityLevel::PRIVATE

          expect(internal_group).to be_invalid
          expect(internal_group.errors[:visibility_level]).to include('private is not allowed since this group contains projects with higher visibility.')
        end

        it 'is valid if higher visibility project is currently undergoing deletion' do
          internal_project.update_attribute(:pending_delete, true)
          internal_group.visibility_level = Gitlab::VisibilityLevel::PRIVATE

          expect(internal_group).to be_valid
        end

        it 'is valid if higher visibility project is pending deletion via marked_for_deletion_at' do
          internal_project.update_attribute(:marked_for_deletion_at, Time.current)
          internal_group.visibility_level = Gitlab::VisibilityLevel::PRIVATE

          expect(internal_group).to be_valid
        end
      end

      context 'when group has a higher visibility' do
        it 'is valid' do
          internal_group.visibility_level = Gitlab::VisibilityLevel::PUBLIC

          expect(internal_group).to be_valid
        end
      end
    end

    describe '#visibility_level_allowed_by_sub_groups' do
      let!(:internal_group) { create(:group, :internal) }
      let!(:internal_sub_group) { create(:group, :internal, parent: internal_group) }

      context 'when parent group has a lower visibility' do
        it 'is invalid' do
          internal_group.visibility_level = Gitlab::VisibilityLevel::PRIVATE

          expect(internal_group).to be_invalid
          expect(internal_group.errors[:visibility_level]).to include('private is not allowed since there are sub-groups with higher visibility.')
        end
      end

      context 'when parent group has a higher visibility' do
        it 'is valid' do
          internal_group.visibility_level = Gitlab::VisibilityLevel::PUBLIC

          expect(internal_group).to be_valid
        end
      end
    end

    describe '#two_factor_authentication_allowed' do
      let_it_be_with_reload(:group) { create(:group) }

      context 'for a parent group' do
        it 'is valid' do
          group.require_two_factor_authentication = true

          expect(group).to be_valid
        end
      end

      context 'for a child group' do
        let(:sub_group) { create(:group, parent: group) }

        it 'is valid when parent group allows' do
          sub_group.require_two_factor_authentication = true

          expect(sub_group).to be_valid
        end

        it 'is invalid when parent group blocks' do
          group.namespace_settings.update!(allow_mfa_for_subgroups: false)
          sub_group.require_two_factor_authentication = true

          expect(sub_group).to be_invalid
          expect(sub_group.errors[:require_two_factor_authentication]).to include('is forbidden by a top-level group')
        end
      end
    end

    describe '#visibility_level_allowed_by_organization?' do
      let(:group) { build(:group) }

      subject(:visibility_level_allowed_by_organization) { group.visibility_level_allowed_by_organization? }

      context 'without an organization' do
        before do
          group.organization = nil
        end

        it 'return true but the record is invalid' do
          expect(group.visibility_level_allowed_by_organization?).to eq(true)
          expect(group.valid?).to eq(false)
        end
      end

      context 'with different visibilities' do
        where(:organization, :group_visibility, :visibility_level_allowed_by_organization) do
          lazy { private_organization } | Gitlab::VisibilityLevel::PRIVATE  | true
          lazy { private_organization } | Gitlab::VisibilityLevel::INTERNAL | false
          lazy { private_organization } | Gitlab::VisibilityLevel::PUBLIC   | false
          lazy { public_organization }  | Gitlab::VisibilityLevel::PRIVATE  | true
          lazy { public_organization }  | Gitlab::VisibilityLevel::INTERNAL | true
          lazy { public_organization }  | Gitlab::VisibilityLevel::PUBLIC   | true
        end

        with_them do
          let(:group) { build(:group, organization: organization, visibility_level: group_visibility) }

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

    describe '#visibility_level_allowed_by_organization' do
      it 'validates visibility level with visibility changes' do
        group = create(:group)

        group.visibility_level = Gitlab::VisibilityLevel::PRIVATE

        expect(group).to receive(:visibility_level_allowed_by_organization)

        group.valid?
      end

      it 'validates visibility level for new records' do
        group = build(:group)

        expect(group).to receive(:visibility_level_allowed_by_organization)

        group.valid?
      end

      context 'with different organization and group visibilities' do
        where(:organization, :group_visibility, :valid?) do
          lazy { private_organization } | :private  | true
          lazy { private_organization } | :internal | false
          lazy { private_organization } | :public   | false
          lazy { public_organization }  | :private  | true
          lazy { public_organization }  | :internal | true
          lazy { public_organization }  | :public   | true
        end

        with_them do
          let(:group) { build(:group, group_visibility, organization: organization) }
          let(:error) { "#{group_visibility} is not allowed since the organization has a private visibility." }

          it 'returns the visibility error' do
            expect(group.valid?).to eq(valid?)
            expect(group.errors[:visibility_level]).to include(error) unless valid?
          end
        end
      end
    end
  end

  it_behaves_like 'a BulkUsersByEmailLoad model'

  it_behaves_like 'ensures runners_token is prefixed' do
    subject(:record) { create(:group, :allow_runner_registration_token) }
  end

  context 'after initialized' do
    it 'has a group_feature' do
      expect(described_class.new.group_feature).to be_present
    end
  end

  context 'on create' do
    let!(:root) { create(:group) }
    let!(:parent) { create(:group, parent: root) }
    let(:group) { build(:group, parent: parent) }

    subject { group.save! }

    it 'locks self and ancestors', :lock_recorder do
      expect { subject }.to lock_rows(
        root => 'FOR SHARE',
        parent => 'FOR SHARE',
        group => 'FOR NO KEY UPDATE'
      )
    end
  end

  context 'when creating a new project' do
    let_it_be(:group) { create(:group) }

    it 'automatically creates the groups feature for the group' do
      expect(group.group_feature).to be_an_instance_of(Groups::FeatureSetting)
      expect(group.group_feature).to be_persisted
    end
  end

  context 'traversal_ids on create' do
    context 'default traversal_ids' do
      let(:group) { build(:group) }

      before do
        group.save!
      end

      it { expect(group.traversal_ids).to eq [group.id] }
    end

    context 'has a parent' do
      let(:parent) { create(:group) }
      let(:group) { build(:group, parent: parent) }

      before do
        group.save!
      end

      it { expect(parent.traversal_ids).to eq [parent.id] }
      it { expect(group.traversal_ids).to eq [parent.id, group.id] }
    end

    context 'has a parent update before save' do
      let(:parent) { create(:group) }
      let(:group) { build(:group, parent: parent) }
      let!(:new_grandparent) { create(:group) }

      before do
        parent.update!(parent: new_grandparent)
        group.save!
      end

      it 'avoid traversal_ids race condition' do
        expect(parent.traversal_ids).to eq [new_grandparent.id, parent.id]
        expect(group.traversal_ids).to eq [new_grandparent.id, parent.id, group.id]
      end
    end
  end

  context 'traversal_ids on update' do
    context 'parent is updated' do
      let(:new_parent) { create(:group) }

      subject { group.update!(parent: new_parent, name: 'new name') }

      it_behaves_like 'update on column', :traversal_ids
    end

    context 'parent is not updated' do
      subject { group.update!(name: 'new name') }

      it_behaves_like 'no update on column', :traversal_ids
    end
  end

  context 'traversal_ids on ancestral update' do
    context 'update multiple ancestors before save' do
      let(:parent) { create(:group) }
      let(:group) { create(:group, parent: parent) }
      let!(:new_grandparent) { create(:group) }
      let!(:new_parent) { create(:group) }

      before do
        group.parent = new_parent
        new_parent.update!(parent: new_grandparent)

        group.save!
      end

      it 'avoids traversal_ids race condition' do
        expect(parent.traversal_ids).to eq [parent.id]
        expect(group.traversal_ids).to eq [new_grandparent.id, new_parent.id, group.id]
        expect(new_grandparent.traversal_ids).to eq [new_grandparent.id]
        expect(new_parent.traversal_ids).to eq [new_grandparent.id, new_parent.id]
      end
    end

    context 'assign a new parent' do
      let!(:group) { create(:group, parent: old_parent) }
      let(:recorded_queries) { ActiveRecord::QueryRecorder.new }

      subject do
        recorded_queries.record do
          group.update!(parent: new_parent)
        end
      end

      context 'within the same hierarchy' do
        let!(:root) { create(:group) }
        let!(:old_parent) { create(:group, parent: root) }
        let!(:new_parent) { create(:group, parent: root) }

        it 'updates traversal_ids' do
          subject

          expect(group.traversal_ids).to eq [root.id, new_parent.id, group.id]
        end

        it_behaves_like 'hierarchy with traversal_ids'

        it 'locks root ancestor', :lock_recorder do
          expect { subject }.to lock_rows(root => 'FOR NO KEY UPDATE')
        end
      end

      context 'to another hierarchy' do
        let!(:old_parent) { create(:group) }
        let!(:new_parent) { create(:group) }
        let!(:group) { create(:group, parent: old_parent) }

        it 'updates traversal_ids' do
          subject

          expect(group.traversal_ids).to eq [new_parent.id, group.id]
        end

        it 'locks both root ancestors', :lock_recorder do
          expect { subject }.to lock_rows(
            old_parent => 'FOR NO KEY UPDATE',
            new_parent => 'FOR NO KEY UPDATE'
          )
        end

        context 'old hierarchy' do
          let(:root) { old_parent.root_ancestor }

          it_behaves_like 'hierarchy with traversal_ids'
        end

        context 'new hierarchy' do
          let(:root) { new_parent.root_ancestor }

          it_behaves_like 'hierarchy with traversal_ids'
        end
      end

      context 'from being a root ancestor' do
        let!(:old_parent) { nil }
        let!(:new_parent) { create(:group) }

        it 'updates traversal_ids' do
          subject

          expect(group.traversal_ids).to eq [new_parent.id, group.id]
        end

        it 'locks rows', :lock_recorder do
          expect { subject }.to lock_rows(
            group => 'FOR NO KEY UPDATE',
            new_parent => 'FOR NO KEY UPDATE'
          )
        end

        it_behaves_like 'hierarchy with traversal_ids' do
          let(:root) { new_parent }
        end
      end

      context 'to being a root ancestor' do
        let!(:old_parent) { create(:group) }
        let!(:new_parent) { nil }

        it 'updates traversal_ids' do
          subject

          expect(group.traversal_ids).to eq [group.id]
        end

        it 'locks rows', :lock_recorder do
          expect { subject }.to lock_rows(
            group => 'FOR NO KEY UPDATE',
            old_parent => 'FOR NO KEY UPDATE'
          )
        end

        it_behaves_like 'hierarchy with traversal_ids' do
          let(:root) { group }

          before do
            subject
          end
        end
      end
    end

    context 'assigning a new grandparent' do
      let!(:old_grandparent) { create(:group) }
      let!(:new_grandparent) { create(:group) }
      let!(:parent_group) { create(:group, parent: old_grandparent) }
      let!(:group) { create(:group, parent: parent_group) }

      before do
        parent_group.update!(parent: new_grandparent)
        reload_models(parent_group, group)
      end

      it 'updates traversal_ids for all descendants' do
        expect(parent_group.traversal_ids).to eq [new_grandparent.id, parent_group.id]
        expect(group.traversal_ids).to eq [new_grandparent.id, parent_group.id, group.id]
      end
    end
  end

  context 'traversal queries' do
    let_it_be(:group, reload: true) { create(:group, :nested) }

    it_behaves_like 'namespace traversal'

    describe '#self_and_descendants' do
      it { expect(group.self_and_descendants.to_sql).to include 'traversal_ids @>' }
    end

    describe '#self_and_descendant_ids' do
      it { expect(group.self_and_descendant_ids.to_sql).to include 'traversal_ids @>' }
    end

    describe '#descendants' do
      it { expect(group.descendants.to_sql).to include 'traversal_ids @>' }
    end

    describe '#self_and_hierarchy' do
      it { expect(group.self_and_hierarchy.to_sql).to include 'traversal_ids @>' }
    end

    describe '#ancestors' do
      it { expect(group.ancestors.to_sql).to include "\"namespaces\".\"id\" = #{group.parent_id}" }

      it 'hierarchy order' do
        expect(group.ancestors(hierarchy_order: :asc).to_sql).to include 'ORDER BY "depth" ASC'
      end
    end

    describe '#ancestors_upto' do
      it { expect(group.ancestors_upto.to_sql).to include "WITH ORDINALITY" }
    end

    describe '.shortest_traversal_ids_prefixes' do
      subject { filter.shortest_traversal_ids_prefixes }

      context 'for many top-level namespaces' do
        let!(:top_level_groups) { create_list(:group, 4) }

        context 'when querying all groups' do
          let(:filter) { described_class.id_in(top_level_groups) }

          it "returns all traversal_ids" do
            is_expected.to contain_exactly(
              *top_level_groups.map { |group| [group.id] }
            )
          end
        end

        context 'when querying selected groups' do
          let(:filter) { described_class.id_in(top_level_groups.first) }

          it "returns only a selected traversal_ids" do
            is_expected.to contain_exactly([top_level_groups.first.id])
          end
        end
      end

      context 'for namespace hierarchy' do
        let!(:group_a) { create(:group) }
        let!(:group_a_sub_1) { create(:group, parent: group_a) }
        let!(:group_a_sub_2) { create(:group, parent: group_a) }
        let!(:group_b) { create(:group) }
        let!(:group_b_sub_1) { create(:group, parent: group_b) }
        let!(:group_c) { create(:group) }

        context 'when querying all groups' do
          let(:filter) { described_class.id_in([group_a, group_a_sub_1, group_a_sub_2, group_b, group_b_sub_1, group_c]) }

          it 'returns only shortest prefixes of top-level groups' do
            is_expected.to contain_exactly(
              [group_a.id],
              [group_b.id],
              [group_c.id]
            )
          end
        end

        context 'when sub-group is reparented' do
          let(:filter) { described_class.id_in([group_b_sub_1, group_c]) }

          before do
            group_b_sub_1.update!(parent: group_c)
          end

          it 'returns a proper shortest prefix of a new group' do
            is_expected.to contain_exactly(
              [group_c.id]
            )
          end
        end

        context 'when querying sub-groups' do
          let(:filter) { described_class.id_in([group_a_sub_1, group_b_sub_1, group_c]) }

          it 'returns sub-groups as they are shortest prefixes' do
            is_expected.to contain_exactly(
              [group_a.id, group_a_sub_1.id],
              [group_b.id, group_b_sub_1.id],
              [group_c.id]
            )
          end
        end

        context 'when querying group and sub-group of this group' do
          let(:filter) { described_class.id_in([group_a, group_a_sub_1, group_c]) }

          it 'returns parent groups as this contains all sub-groups' do
            is_expected.to contain_exactly(
              [group_a.id],
              [group_c.id]
            )
          end
        end
      end
    end

    context 'when project namespace exists in the group' do
      let!(:project) { create(:project, group: group) }
      let!(:project_namespace) { project.project_namespace }

      it 'filters out project namespace' do
        expect(group.descendants.find_by_id(project_namespace.id)).to be_nil
      end
    end
  end

  describe '.without_integration' do
    let(:another_group) { create(:group) }
    let(:instance_integration) { build(:jira_integration, :instance) }

    before do
      create(:jira_integration, :group, group: group)
      create(:integrations_slack, :group, group: another_group)
    end

    it 'returns groups without integration' do
      expect(described_class.without_integration(instance_integration)).to contain_exactly(another_group)
    end
  end

  describe '.groups_user_can' do
    let_it_be(:public_group) { create(:group, :public) }
    let_it_be(:internal_subgroup) { create(:group, :internal, parent: public_group) }
    let_it_be(:private_subgroup_1) { create(:group, :private, parent: internal_subgroup) }
    let_it_be(:private_subgroup_2) { create(:group, :private, parent: private_subgroup_1) }

    let_it_be(:user) { create(:user) }

    it 'filters groups based on permissions' do
      private_subgroup_2.add_guest(user)

      expect(described_class.groups_user_can(public_group.self_and_descendants, user, :read_group)).to contain_exactly(
        public_group,
        internal_subgroup,
        private_subgroup_2
      )
    end
  end

  describe '.execute_integrations' do
    let(:integration) { create(:integrations_slack, :group, group: group) }
    let(:test_data) { { 'foo' => 'bar' } }

    before do
      allow(group.integrations).to receive(:public_send).and_return([])
      allow(group.integrations).to receive(:public_send).with(:push_hooks).and_return([integration])
    end

    it 'executes integrations with a matching scope' do
      expect(integration).to receive(:async_execute).with(test_data)

      group.execute_integrations(test_data, :push_hooks)
    end

    it 'ignores integrations without a matching scope' do
      expect(integration).not_to receive(:async_execute).with(test_data)

      group.execute_integrations(test_data, :note_hooks)
    end
  end

  describe '#notification_group' do
    it 'is expected to reference itself' do
      group = build(:group)

      expect(group.notification_group).to eq(group)
    end
  end

  describe '.public_or_visible_to_user' do
    let!(:private_group) { create(:group, :private) }
    let!(:private_subgroup) { create(:group, :private, parent: private_group) }
    let!(:internal_group) { create(:group, :internal) }

    subject { described_class.public_or_visible_to_user(user) }

    context 'when user is nil' do
      let!(:user) { nil }

      it { is_expected.to match_array([group]) }
    end

    context 'when user' do
      let!(:user) { create(:user) }

      context 'when user does not have access to any private group' do
        it { is_expected.to match_array([internal_group, group]) }
      end

      context 'when user is a member of private group' do
        before do
          private_group.add_member(user, Gitlab::Access::DEVELOPER)
        end

        it { is_expected.to contain_exactly(private_group, private_subgroup, internal_group, group) }
      end

      context 'when user is a member of private subgroup' do
        let!(:private_subgroup) { create(:group, :private, parent: private_group) }

        before do
          private_subgroup.add_member(user, Gitlab::Access::DEVELOPER)
        end

        it { is_expected.to match_array([private_subgroup, internal_group, group]) }
      end
    end
  end

  describe '.sort_by_attribute' do
    before do
      group.destroy!
    end

    let!(:group_1) { create(:group, id: 10, name: 'Y group') }
    let!(:group_2) { create(:group, id: 11, name: 'J group', created_at: 2.days.ago, updated_at: 1.day.ago) }
    let!(:group_3) { create(:group, id: 12, name: 'A group') }
    let!(:group_4) { create(:group, id: 13, name: 'F group', created_at: 1.day.ago, updated_at: 1.day.ago) }

    subject { described_class.with_statistics.with_route.sort_by_attribute(sort) }

    context 'when sort by is not provided' do
      let(:sort) { nil }

      it 'results are not ordered' do
        is_expected.to contain_exactly(group_1, group_2, group_3, group_4)
      end
    end

    context 'when sort by name_asc' do
      let(:sort) { 'name_asc' }

      it { is_expected.to eq([group_3, group_4, group_2, group_1]) }
    end

    context 'when sort by name_desc' do
      let(:sort) { 'name_desc' }

      it { is_expected.to eq([group_1, group_2, group_4, group_3]) }
    end

    context 'when sort by path_asc' do
      let(:sort) { 'path_asc' }

      it { is_expected.to eq([group_1, group_2, group_3, group_4].sort_by(&:path)) }
    end

    context 'when sort by path_desc' do
      let(:sort) { 'path_desc' }

      it { is_expected.to eq([group_1, group_2, group_3, group_4].sort_by(&:path).reverse) }
    end

    context 'when sort by created_desc' do
      let(:sort) { 'created_desc' }

      it { is_expected.to eq([group_3, group_1, group_4, group_2]) }
    end

    context 'when sort by created_asc' do
      let(:sort) { 'created_asc' }

      it { is_expected.to eq([group_2, group_4, group_1, group_3]) }
    end

    context 'when sort by storage_size_desc' do
      let!(:project_1) do
        create(:project,
          namespace: group_1,
          statistics: build(
            :project_statistics,
            namespace: group_1,
            repository_size: 2178370,
            storage_size: 1278370,
            wiki_size: 505,
            lfs_objects_size: 202,
            build_artifacts_size: 303,
            pipeline_artifacts_size: 707,
            packages_size: 404,
            snippets_size: 605,
            uploads_size: 808
          )
        )
      end

      let!(:project_2) do
        create(:project,
          namespace: group_2,
          statistics: build(
            :project_statistics,
            namespace: group_2,
            repository_size: 3178370,
            storage_size: 3178370,
            wiki_size: 505,
            lfs_objects_size: 202,
            build_artifacts_size: 303,
            pipeline_artifacts_size: 707,
            packages_size: 404,
            snippets_size: 605,
            uploads_size: 808
          )
        )
      end

      let!(:project_3) do
        create(:project,
          namespace: group_3,
          statistics: build(
            :project_statistics,
            namespace: group_3,
            repository_size: 1278370,
            storage_size: 1178370,
            wiki_size: 505,
            lfs_objects_size: 202,
            build_artifacts_size: 303,
            pipeline_artifacts_size: 707,
            packages_size: 404,
            snippets_size: 605,
            uploads_size: 808
          )
        )
      end

      let!(:project_4) do
        create(:project,
          namespace: group_4,
          statistics: build(
            :project_statistics,
            namespace: group_4,
            repository_size: 2178370,
            storage_size: 2278370,
            wiki_size: 505,
            lfs_objects_size: 202,
            build_artifacts_size: 303,
            pipeline_artifacts_size: 707,
            packages_size: 404,
            snippets_size: 605,
            uploads_size: 808
          )
        )
      end

      let(:sort) { 'storage_size_desc' }

      it { is_expected.to eq([group_2, group_4, group_1, group_3]) }
    end
  end

  describe 'scopes' do
    let_it_be(:private_group)  { create(:group, :private)  }
    let_it_be(:internal_group) { create(:group, :internal) }
    let_it_be(:user1) { create(:user) }
    let_it_be(:user2) { create(:user) }

    describe 'public_only' do
      subject { described_class.public_only.to_a }

      it { is_expected.to eq([group]) }
    end

    describe 'public_and_internal_only' do
      subject { described_class.public_and_internal_only.to_a }

      it { is_expected.to match_array([group, internal_group]) }
    end

    describe 'non_public_only' do
      subject { described_class.non_public_only.to_a }

      it { is_expected.to match_array([private_group, internal_group]) }
    end

    describe 'private_only' do
      subject { described_class.private_only.to_a }

      it { is_expected.to match_array([private_group]) }
    end

    describe 'with_non_archived_projects' do
      let_it_be(:project) { create(:project, group: private_group, archived: false) }

      subject { described_class.with_non_archived_projects }

      it 'loads the records of non archived projects' do
        associations = subject.map { |group| group.association(:non_archived_projects) }
        expect(associations).to all(be_loaded)
      end
    end

    describe 'with_non_invite_group_members' do
      let_it_be(:group_member) { create(:group_member, member_namespace: private_group, requested_at: nil, invite_token: nil, access_level: Gitlab::Access::DEVELOPER) }

      subject { described_class.with_non_invite_group_members }

      it 'loads the records of non invite group members' do
        associations = subject.map { |group| group.association(:non_invite_group_members) }
        expect(associations).to all(be_loaded)
      end
    end

    describe '.with_request_group_members' do
      let_it_be(:group_member) { create(:group_member, :access_request, member_namespace: private_group) }

      subject(:with_request_group_members) { described_class.with_request_group_members }

      it 'loads the records of non invite group members' do
        associations = with_request_group_members.map { |group| group.association(:request_group_members) }
        expect(associations).to all(be_loaded)
      end
    end

    describe 'for_authorized_group_members' do
      let_it_be(:group_member1) { create(:group_member, source: private_group, user_id: user1.id, access_level: Gitlab::Access::OWNER) }

      it do
        result = described_class.for_authorized_group_members([user1.id, user2.id])

        expect(result).to match_array([private_group])
      end
    end

    describe 'for_authorized_project_members' do
      let_it_be(:project) { create(:project, group: internal_group) }
      let_it_be(:project_member1) { create(:project_member, source: project, user_id: user1.id, access_level: Gitlab::Access::DEVELOPER) }

      it do
        result = described_class.for_authorized_project_members([user1.id, user2.id])

        expect(result).to match_array([internal_group])
      end
    end

    describe '.aimed_for_deletion' do
      let!(:date) { 10.days.ago }

      subject(:relation) { described_class.aimed_for_deletion(date) }

      it 'only includes groups that are marked for deletion on or before the specified date' do
        group_not_marked_for_deletion = create(:group)

        group_marked_for_deletion_after_specified_date = create(
          :group_with_deletion_schedule,
          marked_for_deletion_on: date + 2.days
        )

        group_marked_for_deletion_before_specified_date = create(
          :group_with_deletion_schedule,
          marked_for_deletion_on: date - 2.days
        )

        group_marked_for_deletion_on_specified_date = create(
          :group_with_deletion_schedule,
          marked_for_deletion_on: date
        )

        expect(relation).to include(
          group_marked_for_deletion_before_specified_date,
          group_marked_for_deletion_on_specified_date
        )
        expect(relation).not_to include(
          group_marked_for_deletion_after_specified_date,
          group_not_marked_for_deletion
        )
      end
    end

    describe '.by_marked_for_deletion_on' do
      let_it_be(:group_marked_for_deletion) { create(:group_with_deletion_schedule, marked_for_deletion_on: Date.parse('2024-01-01')) }
      let_it_be(:group_not_marked_for_deletion) { create(:group) }

      context 'when marked_for_deletion_on is present' do
        it 'returns groups marked for deletion on the specified date' do
          expect(described_class.by_marked_for_deletion_on(Date.parse('2024-01-01'))).to contain_exactly(group_marked_for_deletion)
        end
      end

      context 'when marked_for_deletion_on is not present' do
        it 'does not return any groups marked for deletion' do
          expect(described_class.by_marked_for_deletion_on(nil)).to be_empty
        end
      end
    end

    describe '.with_project_creation_levels' do
      let_it_be(:group_1) { create(:group, project_creation_level: Gitlab::Access::NO_ONE_PROJECT_ACCESS) }
      let_it_be(:group_2) { create(:group, project_creation_level: Gitlab::Access::DEVELOPER_PROJECT_ACCESS) }
      let_it_be(:group_3) { create(:group, project_creation_level: Gitlab::Access::MAINTAINER_PROJECT_ACCESS) }
      let_it_be(:group_4) { create(:group, project_creation_level: Gitlab::Access::OWNER_PROJECT_ACCESS) }
      let_it_be(:group_5) { create(:group, project_creation_level: nil) }

      it 'returns groups with the specified project creation levels' do
        result = described_class.with_project_creation_levels([
          Gitlab::Access::NO_ONE_PROJECT_ACCESS,
          Gitlab::Access::MAINTAINER_PROJECT_ACCESS
        ])

        expect(result).to include(group_1, group_3)
        expect(result).not_to include(group_2, group_4, group_5)
      end
    end

    describe '.excluding_restricted_visibility_levels_for_user' do
      let_it_be(:admin_user) { create(:admin) }

      let(:private_vis) { Gitlab::VisibilityLevel::PRIVATE }
      let(:internal_vis) { Gitlab::VisibilityLevel::INTERNAL }
      let(:public_vis) { Gitlab::VisibilityLevel::PUBLIC }

      subject { described_class.excluding_restricted_visibility_levels_for_user(user1) }

      context 'with table syntax' do
        where(:restricted_visibility_levels, :expected_groups) do
          nil                                     | lazy { [private_group, internal_group, group] }
          []                                      | lazy { [private_group, internal_group, group] }
          [private_vis]                           | lazy { [internal_group, group] }
          [internal_vis]                          | lazy { [private_group, internal_group, group] }
          [public_vis]                            | lazy { [private_group, internal_group, group] }
          [private_vis, internal_vis]             | lazy { [group] }
          [private_vis, public_vis]               | lazy { [internal_group, group] }
          [internal_vis, public_vis]              | lazy { [private_group, internal_group, group] }
          [private_vis, internal_vis, public_vis] | lazy { [] }
        end

        with_them do
          before do
            stub_application_setting(restricted_visibility_levels: restricted_visibility_levels)
          end

          it { is_expected.to match_array(expected_groups) }

          context 'with admin mode enabled', :enable_admin_mode do
            subject { described_class.excluding_restricted_visibility_levels_for_user(admin_user) }

            it { is_expected.to match_array([private_group, internal_group, group]) }
          end
        end
      end
    end

    describe '.project_creation_allowed' do
      let_it_be(:group_1) { create(:group, project_creation_level: Gitlab::Access::NO_ONE_PROJECT_ACCESS) }
      let_it_be(:group_2) { create(:group, project_creation_level: Gitlab::Access::DEVELOPER_PROJECT_ACCESS) }
      let_it_be(:group_3) { create(:group, project_creation_level: Gitlab::Access::MAINTAINER_PROJECT_ACCESS) }
      let_it_be(:group_4) { create(:group, project_creation_level: Gitlab::Access::OWNER_PROJECT_ACCESS) }
      let_it_be(:group_5) { create(:group, project_creation_level: Gitlab::Access::ADMINISTRATOR_PROJECT_ACCESS) }
      let_it_be(:group_6) { create(:group, project_creation_level: nil) } # `nil` inherits `default_project_creation`
      let_it_be(:all_groups) { described_class.id_in([group_1, group_2, group_3, group_4, group_5, group_6]) }

      where(:admin_user?, :admin_mode, :default_project_creation, :expected_groups) do
        false | false | Gitlab::Access::NO_ONE_PROJECT_ACCESS               | lazy { [group_2, group_3, group_4] }
        false | false | Gitlab::Access::OWNER_PROJECT_ACCESS                | lazy { [group_2, group_3, group_4, group_6] }
        false | false | Gitlab::Access::MAINTAINER_PROJECT_ACCESS           | lazy { [group_2, group_3, group_4, group_6] }
        false | false | Gitlab::Access::DEVELOPER_PROJECT_ACCESS            | lazy { [group_2, group_3, group_4, group_6] }
        false | false | Gitlab::Access::ADMINISTRATOR_PROJECT_ACCESS        | lazy { [group_2, group_3, group_4] }
        true  | false | Gitlab::Access::NO_ONE_PROJECT_ACCESS               | lazy { [group_2, group_3, group_4] }
        true  | false | Gitlab::Access::OWNER_PROJECT_ACCESS                | lazy { [group_2, group_3, group_4, group_6] }
        true  | false | Gitlab::Access::MAINTAINER_PROJECT_ACCESS           | lazy { [group_2, group_3, group_4, group_6] }
        true  | false | Gitlab::Access::DEVELOPER_PROJECT_ACCESS            | lazy { [group_2, group_3, group_4, group_6] }
        true  | false | Gitlab::Access::ADMINISTRATOR_PROJECT_ACCESS        | lazy { [group_2, group_3, group_4] }
        true  | true  | Gitlab::Access::NO_ONE_PROJECT_ACCESS               | lazy { [group_2, group_3, group_4, group_5] }
        true  | true  | Gitlab::Access::OWNER_PROJECT_ACCESS                | lazy { [group_2, group_3, group_4, group_5, group_6] }
        true  | true  | Gitlab::Access::MAINTAINER_PROJECT_ACCESS           | lazy { [group_2, group_3, group_4, group_5, group_6] }
        true  | true  | Gitlab::Access::DEVELOPER_PROJECT_ACCESS            | lazy { [group_2, group_3, group_4, group_5, group_6] }
        true  | true  | Gitlab::Access::ADMINISTRATOR_PROJECT_ACCESS        | lazy { [group_2, group_3, group_4, group_5, group_6] }
      end

      with_them do
        let(:user) { admin_user? ? create(:admin) : create(:user) }

        before do
          enable_admin_mode!(user) if admin_mode
          stub_application_setting(default_project_creation: default_project_creation)
        end

        it 'returns expected groups' do
          expect(described_class).to receive(:excluding_restricted_visibility_levels_for_user).and_call_original

          result = all_groups.project_creation_allowed(user)

          expect(result).to match_array(expected_groups)
        end
      end
    end

    describe 'by_ids_or_paths' do
      let(:group_path) { 'group_path' }
      let!(:group) { create(:group, path: group_path) }
      let(:group_id) { group.id }

      it 'returns matching records based on paths' do
        expect(described_class.by_ids_or_paths(nil, [group_path])).to match_array([group])
        expect(described_class.by_ids_or_paths(nil, [group_path.upcase])).to match_array([group])
      end

      it 'returns matching records based on ids' do
        expect(described_class.by_ids_or_paths([group_id], nil)).to match_array([group])
        expect(described_class.by_ids_or_paths([group_id], [])).to match_array([group])
      end

      it 'returns matching records based on both paths and ids' do
        new_group = create(:group)

        expect(described_class.by_ids_or_paths([new_group.id], [group_path])).to match_array([group, new_group])
      end

      it 'returns matching records based on full_paths' do
        new_group = create(:group, parent: group)

        expect(described_class.by_ids_or_paths(nil, [new_group.full_path])).to match_array([new_group])
        expect(described_class.by_ids_or_paths(nil, [new_group.full_path.upcase])).to match_array([new_group])
      end
    end

    describe 'by_visibility_level' do
      let_it_be(:group1) { create(:group, visibility_level: Gitlab::VisibilityLevel::PUBLIC) }
      let_it_be(:group2) { create(:group, visibility_level: Gitlab::VisibilityLevel::PRIVATE) }
      let_it_be(:group3) { create(:group, visibility_level: Gitlab::VisibilityLevel::INTERNAL) }

      context 'when visibility is present' do
        it 'returns groups with the specified visibility level' do
          expect(described_class.by_visibility_level(Gitlab::VisibilityLevel::PUBLIC)).to contain_exactly(group, group1)
          expect(described_class.by_visibility_level(Gitlab::VisibilityLevel::PRIVATE)).to contain_exactly(private_group, group2)
          expect(described_class.by_visibility_level(Gitlab::VisibilityLevel::INTERNAL)).to contain_exactly(internal_group, group3)
        end
      end

      context 'when visibility is not present' do
        it 'returns all groups' do
          expect(described_class.by_visibility_level(nil)).to include(group1, group2, group3)
        end
      end
    end

    describe 'excluding_groups' do
      let!(:another_group) { create(:group) }

      subject { described_class.excluding_groups(excluded_groups) }

      context 'when passing a single group' do
        let(:excluded_groups) { group }

        it 'does not return excluded group' do
          expect(subject).not_to include(group)
        end
      end

      context 'when passing an array with groups' do
        let(:excluded_groups) { [group, another_group] }

        it 'does not return excluded groups' do
          expect(subject).not_to include(group, another_group)
        end
      end
    end

    describe 'accessible_to_user' do
      subject { described_class.accessible_to_user(user) }

      let_it_be(:public_group) { create(:group, :public) }
      let_it_be(:unaccessible_group) { create(:group, :private) }
      let_it_be(:unaccessible_subgroup) { create(:group, :private, parent: unaccessible_group) }
      let_it_be(:accessible_group) { create(:group, :private) }
      let_it_be(:accessible_subgroup) { create(:group, :private, parent: accessible_group) }

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

        it { is_expected.to match_array([group, public_group]) }
      end

      context 'when user is present' do
        let(:user) { create(:user) }

        it { is_expected.to match_array([group, internal_group, public_group]) }

        context 'when user has access to accessible group' do
          before do
            accessible_group.add_developer(user)
          end

          it { is_expected.to match_array([group, internal_group, public_group, accessible_group, accessible_subgroup]) }
        end
      end
    end

    describe '.sorted_by_similarity_desc' do
      # Exact match to the search term
      let_it_be(:first) { create(:group, path: 'similar-b', name: 'similar-b') }
      # Not similar at all
      let_it_be(:last) { create(:group, path: 'different-path-a', name: 'different-name-a') }

      # The two middle terms have the same distance from the search term
      let_it_be(:middle) { create(:group, path: 'similar-a', name: 'similar-a') }
      let_it_be(:middle_two) { create(:group, path: 'similar-c', name: 'similar-c') }

      let(:search_term) { 'similar-b' }

      subject(:ids) do
        described_class.where(id: [middle_two.id, middle.id, last.id, first.id])
                       .sorted_by_similarity_desc(search_term)
                       .pluck(:id)
      end

      it 'sorts groups based on path, name, and description similarity, ties broken by ID' do
        expect(ids).to eq([first.id, middle.id, middle_two.id, last.id])
      end
    end

    describe '.in_organization' do
      let_it_be(:org1) { create(:organization) }
      let_it_be(:org2) { create(:organization) }
      let_it_be(:groups) { create_pair(:group, organization: org1) }

      before do
        create(:group, organization: org2)
      end

      subject { described_class.in_organization(org1) }

      it { is_expected.to match_array(groups) }
    end

    describe '.by_min_access_level' do
      let_it_be(:user) { create(:user) }
      let_it_be(:group1) { create(:group) }
      let_it_be(:group2) { create(:group) }

      let(:owner_access_level) { Gitlab::Access::OWNER }
      let(:developer_access_level) { Gitlab::Access::DEVELOPER }

      before do
        create(:group_member, user: user, group: group1, access_level: owner_access_level)
        create(:group_member, user: user, group: group2, access_level: developer_access_level)
      end

      it 'returns groups where the user has the specified access level' do
        result = described_class.by_min_access_level(user, owner_access_level)

        expect(result).to contain_exactly(group1)
      end

      it 'returns groups if the user has greater or equal specified access level' do
        result = described_class.by_min_access_level(user, developer_access_level)

        expect(result).to contain_exactly(group1, group2)
      end
    end

    describe 'descendants_with_shared_with_groups' do
      subject { described_class.descendants_with_shared_with_groups(parent_group) }

      let_it_be(:grand_parent_group) { create(:group, :public) }
      let_it_be(:parent_group) { create(:group, :public, parent: grand_parent_group) }
      let_it_be(:subgroup) { create(:group, :public, parent: parent_group) }
      let_it_be(:subsubgroup) { create(:group, :public, parent: subgroup) }

      let_it_be(:shared_to_group) { create(:group, :public) }
      let_it_be(:shared_to_sub_group) { create(:group, :public) }

      context 'when parent group is nil' do
        let(:parent_group) { nil }

        it { is_expected.to match_array([]) }
      end

      context 'when parent group is present and there are shared groups' do
        before do
          parent_group.shared_with_groups << shared_to_group
          subgroup.shared_with_groups << shared_to_sub_group
        end

        it { is_expected.to match_array([subgroup, subsubgroup, shared_to_group]) }
      end

      context 'when parent group is present and there are no shared groups' do
        it { is_expected.to match_array([subgroup, subsubgroup]) }
      end
    end

    describe '.active' do
      let_it_be(:active_group) { create(:group) }
      let_it_be(:archived_group) { create(:group, namespace_settings: create(:namespace_settings, archived: true)) }
      let_it_be(:marked_for_deletion_group) { create(:group_with_deletion_schedule) }

      subject { described_class.active }

      it { is_expected.to include(active_group) }
      it { is_expected.not_to include(marked_for_deletion_group) }
      it { is_expected.not_to include(archived_group) }
    end

    describe '.inactive' do
      let_it_be(:active_group) { create(:group) }
      let_it_be(:archived_group) { create(:group, namespace_settings: create(:namespace_settings, archived: true)) }
      let_it_be(:marked_for_deletion_group) { create(:group_with_deletion_schedule) }

      subject { described_class.inactive }

      it { is_expected.to include(archived_group) }
      it { is_expected.to include(marked_for_deletion_group) }
      it { is_expected.not_to include(active_group) }
    end
  end

  describe '.project_creation_levels_for_user' do
    where(:admin_user?, :admin_mode, :default_project_creation, :expected_levels) do
      false | false | no_one_access     | lazy { [developer_access, maintainer_access, owner_access] }
      false | false | admin_access      | lazy { [developer_access, maintainer_access, owner_access] }
      false | false | maintainer_access | lazy { [developer_access, maintainer_access, owner_access, nil] }
      false | false | owner_access      | lazy { [developer_access, maintainer_access, owner_access, nil] }
      false | false | developer_access  | lazy { [developer_access, maintainer_access, owner_access, nil] }
      true  | false | no_one_access     | lazy { [developer_access, maintainer_access, owner_access] }
      true  | false | admin_access      | lazy { [developer_access, maintainer_access, owner_access] }
      true  | false | maintainer_access | lazy { [developer_access, maintainer_access, owner_access, nil] }
      true  | false | owner_access      | lazy { [developer_access, maintainer_access, owner_access, nil] }
      true  | false | developer_access  | lazy { [developer_access, maintainer_access, owner_access, nil] }
      true  | true  | no_one_access     | lazy { [developer_access, maintainer_access, owner_access, admin_access] }
      true  | true  | admin_access      | lazy { [developer_access, maintainer_access, owner_access, admin_access, nil] }
      true  | true  | maintainer_access | lazy { [developer_access, maintainer_access, owner_access, admin_access, nil] }
      true  | true  | owner_access      | lazy { [developer_access, maintainer_access, owner_access, admin_access, nil] }
      true  | true  | developer_access  | lazy { [developer_access, maintainer_access, owner_access, admin_access, nil] }
    end

    with_them do
      let(:user) { admin_user? ? create(:admin) : create(:user) }

      before do
        stub_application_setting(default_project_creation: default_project_creation)
        enable_admin_mode!(user) if admin_mode
      end

      it 'returns correct project creation levels' do
        expect(described_class.project_creation_levels_for_user(user)).to match_array(expected_levels)
      end
    end
  end

  describe '.prevent_project_creation?' do
    where(:admin_user?, :admin_mode, :project_creation_setting, :expected_result) do
      false | false | lazy { no_one_access }     | true
      false | false | lazy { admin_access }      | true
      false | false | lazy { owner_access }      | false
      false | false | lazy { maintainer_access } | false
      false | false | lazy { developer_access }  | false
      true  | false | lazy { no_one_access }     | true
      true  | false | lazy { admin_access }      | true
      true  | false | lazy { owner_access }      | false
      true  | false | lazy { maintainer_access } | false
      true  | false | lazy { developer_access }  | false
      true  | true  | lazy { no_one_access }     | true
      true  | true  | lazy { admin_access }      | false
      true  | true  | lazy { owner_access }      | false
      true  | true  | lazy { maintainer_access } | false
      true  | true  | lazy { developer_access }  | false
    end

    with_them do
      let(:user) { admin_user? ? create(:admin) : create(:user) }

      before do
        enable_admin_mode!(user) if admin_mode
      end

      subject { described_class.prevent_project_creation?(user, project_creation_setting) }

      it { is_expected.to be(expected_result) }
    end
  end

  describe '#to_reference' do
    it 'returns a String reference to the object' do
      expect(group.to_reference).to eq "@#{group.name}"
    end
  end

  describe '#users' do
    let(:group_users) { group.users.allow_cross_joins_across_databases(url: "https://gitlab.com/gitlab-org/gitlab/-/issues/436662") }
    let(:group_owners) { group.owners.allow_cross_joins_across_databases(url: "https://gitlab.com/gitlab-org/gitlab/-/issues/436662") }

    it { expect(group_users).to eq(group_owners) }
  end

  describe '#human_name' do
    it { expect(group.human_name).to eq(group.name) }
  end

  describe '#to_human_reference' do
    let_it_be(:new_group) { create(:group) }

    it { expect(group.to_human_reference).to be_nil }
    it { expect(group.to_human_reference(new_group)).to eq(group.full_name) }
  end

  describe '#add_user' do
    let(:user) { create(:user) }

    it 'adds the user' do
      expect_next_instance_of(GroupMember) do |member|
        expect(member).to receive(:refresh_member_authorized_projects).and_call_original
      end

      group.add_member(user, GroupMember::MAINTAINER)

      expect(group.group_members.maintainers.map(&:user)).to include(user)
    end
  end

  describe '#add_users' do
    let(:user) { create(:user) }

    before do
      group.add_members([user.id], GroupMember::GUEST)
    end

    it "updates the group permission" do
      expect(group.group_members.guests.map(&:user)).to include(user)
      group.add_members([user.id], GroupMember::DEVELOPER)
      expect(group.group_members.developers.map(&:user)).to include(user)
      expect(group.group_members.guests.map(&:user)).not_to include(user)
    end
  end

  it_behaves_like Avatarable do
    let(:model) { create(:group, :with_avatar) }
  end

  describe '.search' do
    it 'returns groups with a matching name' do
      expect(described_class.search(group.name)).to eq([group])
    end

    it 'returns groups with a partially matching name' do
      expect(described_class.search(group.name[0..2])).to eq([group])
    end

    it 'returns groups with a matching name regardless of the casing' do
      expect(described_class.search(group.name.upcase)).to eq([group])
    end

    it 'returns groups with a matching path' do
      expect(described_class.search(group.path)).to eq([group])
    end

    it 'returns groups with a partially matching path' do
      expect(described_class.search(group.path[0..2])).to eq([group])
    end

    it 'returns groups with a matching path regardless of the casing' do
      expect(described_class.search(group.path.upcase)).to eq([group])
    end
  end

  describe '#has_owner?' do
    before do
      @members = setup_group_members(group)
      create(:group_member, :invited, :owner, group: group)
    end

    it { expect(group.has_owner?(@members[:owner])).to be_truthy }
    it { expect(group.has_owner?(@members[:maintainer])).to be_falsey }
    it { expect(group.has_owner?(@members[:developer])).to be_falsey }
    it { expect(group.has_owner?(@members[:reporter])).to be_falsey }
    it { expect(group.has_owner?(@members[:guest])).to be_falsey }
    it { expect(group.has_owner?(@members[:requester])).to be_falsey }
    it { expect(group.has_owner?(nil)).to be_falsey }
  end

  describe '#has_maintainer?' do
    before do
      @members = setup_group_members(group)
      create(:group_member, :invited, :maintainer, group: group)
    end

    it { expect(group.has_maintainer?(@members[:owner])).to be_falsey }
    it { expect(group.has_maintainer?(@members[:maintainer])).to be_truthy }
    it { expect(group.has_maintainer?(@members[:developer])).to be_falsey }
    it { expect(group.has_maintainer?(@members[:reporter])).to be_falsey }
    it { expect(group.has_maintainer?(@members[:guest])).to be_falsey }
    it { expect(group.has_maintainer?(@members[:requester])).to be_falsey }
    it { expect(group.has_maintainer?(nil)).to be_falsey }
  end

  describe '#last_owner?' do
    before do
      @members = setup_group_members(group)
    end

    it { expect(group.last_owner?(@members[:owner])).to be_truthy }

    context 'there is also a project_bot owner' do
      before do
        group.add_member(create(:user, :project_bot), GroupMember::OWNER)
      end

      it { expect(group.last_owner?(@members[:owner])).to be_truthy }
    end

    context 'with two owners' do
      before do
        create(:group_member, :owner, group: group)
      end

      it { expect(group.last_owner?(@members[:owner])).to be_falsy }
    end

    context 'with owners from a parent' do
      context 'when top-level group' do
        it { expect(group.last_owner?(@members[:owner])).to be_truthy }

        context 'with group sharing' do
          let!(:subgroup) { create(:group, parent: group) }

          before do
            create(:group_group_link, :owner, shared_group: group, shared_with_group: subgroup)
            create(:group_member, :owner, group: subgroup)
          end

          it { expect(group.last_owner?(@members[:owner])).to be_truthy }
        end
      end

      context 'when subgroup' do
        let!(:subgroup) { create(:group, parent: group) }

        it { expect(subgroup.last_owner?(@members[:owner])).to be_truthy }

        context 'with two owners' do
          before do
            create(:group_member, :owner, group: group)
          end

          it { expect(subgroup.last_owner?(@members[:owner])).to be_falsey }
        end
      end
    end
  end

  context 'when analyzing blocked owners' do
    let_it_be(:blocked_user) { create(:user, :blocked) }

    describe '#blocked_owners' do
      let_it_be(:user) { create(:user) }

      before do
        group.add_member(blocked_user, GroupMember::OWNER)
        group.add_member(user, GroupMember::OWNER)
      end

      it 'has only blocked owners' do
        expect(group.blocked_owners.map(&:user)).to match([blocked_user])
      end
    end
  end

  describe '#member_owners_excluding_project_bots' do
    let_it_be(:user) { create(:user) }

    let!(:member_owner) do
      group.add_member(user, GroupMember::OWNER)
    end

    before do
      # Add an invite to the group, which should be filtered out
      create(:group_member, :invited, source: group)
    end

    it 'returns the member-owners' do
      expect(group.member_owners_excluding_project_bots).to contain_exactly(member_owner)
    end

    it 'preloads user and source' do
      owner = group.member_owners_excluding_project_bots.first

      expect(owner.association(:user).loaded?).to be_truthy
      expect(owner.association(:source).loaded?).to be_truthy
    end

    context 'there is also a project_bot owner' do
      before do
        group.add_member(create(:user, :project_bot), GroupMember::OWNER)
      end

      it 'returns only the human member-owners' do
        expect(group.member_owners_excluding_project_bots).to contain_exactly(member_owner)
      end
    end

    context 'when there is user that does not exist' do
      before do
        # Simulate that the user is deleted but the LFK worker has not
        # started yet.
        deleted_user = create(:user)
        create(:group_member, source: group, user: deleted_user)

        deleted_user.destroy!
      end

      it 'returns the member-owners' do
        expect(group.member_owners_excluding_project_bots).to contain_exactly(member_owner)
      end
    end

    context 'with owners from a parent' do
      context 'when top-level group' do
        context 'with group sharing' do
          let!(:subgroup) { create(:group, parent: group) }

          before do
            create(:group_group_link, :owner, shared_group: group, shared_with_group: subgroup)
            subgroup.add_member(user, GroupMember::OWNER)
          end

          it 'returns only direct member-owners' do
            expect(group.member_owners_excluding_project_bots).to contain_exactly(member_owner)
          end

          context 'when there is an invite in the linked group' do
            before do
              create(:group_member, :invited, source: subgroup)
            end

            it 'returns only direct member-owners' do
              expect(group.member_owners_excluding_project_bots).to contain_exactly(member_owner)
            end
          end
        end
      end

      context 'when subgroup' do
        let!(:subgroup) { create(:group, parent: group) }

        let_it_be(:user_2) { create(:user) }

        let!(:member_owner_2) do
          subgroup.add_member(user_2, GroupMember::OWNER)
        end

        it 'returns member-owners including parents' do
          expect(subgroup.member_owners_excluding_project_bots).to contain_exactly(member_owner, member_owner_2)
        end

        context 'with group sharing' do
          let_it_be(:invited_group) { create(:group) }

          let!(:invited_group_owner) { invited_group.add_member(user, GroupMember::OWNER) }

          before do
            create(:group_group_link, :owner, shared_group: subgroup, shared_with_group: invited_group)
          end

          it 'returns member-owners including parents, and member-owners of the invited group' do
            expect(subgroup.member_owners_excluding_project_bots).to contain_exactly(member_owner, member_owner_2, invited_group_owner)
          end

          context 'when there is an invite in the linked group' do
            before do
              # Add an invite to this group, which should be filtered out
              create(:group_member, :invited, source: invited_group)
            end

            it 'returns member-owners including parents, and member-owners of the invited group' do
              expect(subgroup.member_owners_excluding_project_bots).to contain_exactly(member_owner, member_owner_2, invited_group_owner)
            end
          end
        end
      end
    end

    context 'when there are no owners' do
      let_it_be(:empty_group) { create(:group) }

      it 'returns an empty result' do
        expect(empty_group.member_owners_excluding_project_bots).to be_empty
      end
    end

    context 'when user is blocked' do
      let(:blocked_user) { create(:user, :blocked) }
      let!(:blocked_member) do
        group.add_member(blocked_user, GroupMember::OWNER)
      end

      context 'and it is a direct member' do
        it 'does include blocked user' do
          expect(group.member_owners_excluding_project_bots).to include(blocked_member)
        end
      end

      context 'and it is a member of a parent' do
        let!(:subgroup) { create(:group, parent: group) }

        it 'does include blocked user' do
          expect(subgroup.member_owners_excluding_project_bots).to include(blocked_member)
        end
      end
    end
  end

  describe '#lfs_enabled?' do
    context 'LFS enabled globally' do
      before do
        allow(Gitlab.config.lfs).to receive(:enabled).and_return(true)
      end

      it 'returns true when nothing is set' do
        expect(group.lfs_enabled?).to be_truthy
      end

      it 'returns false when set to false' do
        group.update_attribute(:lfs_enabled, false)

        expect(group.lfs_enabled?).to be_falsey
      end

      it 'returns true when set to true' do
        group.update_attribute(:lfs_enabled, true)

        expect(group.lfs_enabled?).to be_truthy
      end
    end

    context 'LFS disabled globally' do
      before do
        allow(Gitlab.config.lfs).to receive(:enabled).and_return(false)
      end

      it 'returns false when nothing is set' do
        expect(group.lfs_enabled?).to be_falsey
      end

      it 'returns false when set to false' do
        group.update_attribute(:lfs_enabled, false)

        expect(group.lfs_enabled?).to be_falsey
      end

      it 'returns false when set to true' do
        group.update_attribute(:lfs_enabled, true)

        expect(group.lfs_enabled?).to be_falsey
      end
    end
  end

  describe '#owners' do
    let(:owner) { create(:user) }
    let(:developer) { create(:user) }

    it 'returns the owners of a Group' do
      members = setup_group_members(group)

      expect(
        group.owners.allow_cross_joins_across_databases(url: "https://gitlab.com/gitlab-org/gitlab/-/issues/436662")
      ).to eq([members[:owner]])
    end
  end

  describe '#owned_by?' do
    let!(:invited_group_member) { create(:group_member, :owner, :invited, group: group) }

    before do
      @members = setup_group_members(group)
    end

    it 'returns true for owner' do
      expect(group.owned_by?(@members[:owner])).to eq(true)
    end

    it 'returns false for developer' do
      expect(group.owned_by?(@members[:developer])).to eq(false)
    end

    it 'returns false when nil is passed' do
      expect(invited_group_member.user).to eq(nil)
      expect(group.owned_by?(invited_group_member.user)).to eq(false)
    end
  end

  def setup_group_members(group)
    members = {
      owner: create(:user),
      maintainer: create(:user),
      developer: create(:user),
      reporter: create(:user),
      guest: create(:user),
      requester: create(:user)
    }

    group.add_member(members[:owner], GroupMember::OWNER)
    group.add_member(members[:maintainer], GroupMember::MAINTAINER)
    group.add_member(members[:developer], GroupMember::DEVELOPER)
    group.add_member(members[:reporter], GroupMember::REPORTER)
    group.add_member(members[:guest], GroupMember::GUEST)
    group.request_access(members[:requester])

    members
  end

  describe 'nested group' do
    subject { build(:group, :nested) }

    it { is_expected.to be_valid }
    it { expect(subject.parent).to be_kind_of(described_class) }
  end

  describe '#has_user?' do
    let_it_be(:group) { create(:group) }
    let_it_be(:subgroup) { create(:group, parent: group) }
    let_it_be(:user) { create(:user) }
    let_it_be(:user2) { create(:user) }
    let_it_be(:invited_group_member) { create(:group_member, :owner, :invited, group: group) }

    subject { group.has_user?(user) }

    context 'when the user is a member' do
      before_all do
        group.add_developer(user)
      end

      it { is_expected.to be_truthy }
      it { expect(group.has_user?(user2)).to be_falsey }

      it 'returns false for subgroup' do
        expect(subgroup.has_user?(user)).to be_falsey
      end
    end

    context 'when the user is a member with minimal access' do
      before_all do
        group.add_member(user, GroupMember::MINIMAL_ACCESS)
      end

      it { is_expected.to be_falsey }
    end

    context 'when the user has requested membership' do
      before_all do
        create(:group_member, :developer, :access_request, user: user, source: group)
      end

      it 'returns false' do
        expect(subject).to be_falsey
      end
    end

    context 'when the user is an invited member' do
      it 'returns false when nil is passed' do
        expect(invited_group_member.user).to eq(nil)
        expect(group.has_user?(invited_group_member.user)).to be_falsey
      end
    end
  end

  describe '#member?' do
    let_it_be(:group) { create(:group) }
    let_it_be(:user) { create(:user) }

    before_all do
      group.add_developer(user)
    end

    subject { group.member?(user) }

    context 'when user is a developer' do
      it 'returns true' do
        expect(group.member?(user)).to be_truthy
      end

      it 'returns false with maintainer as min_access_level param' do
        expect(group.member?(user, Gitlab::Access::MAINTAINER)).to be_falsey
      end
    end

    it 'returns true for a user in parent group' do
      subgroup = create(:group, parent: group)

      expect(subgroup.member?(user)).to be_truthy
    end

    context 'in shared group' do
      let(:shared_group) { create(:group) }
      let(:member_shared) { create(:user) }

      before do
        create(:group_group_link, shared_group: group, shared_with_group: shared_group)
        shared_group.add_developer(member_shared)
      end

      it 'return true for shared group member' do
        expect(group.member?(member_shared)).to be_truthy
      end

      it 'returns false with maintainer as min_access_level param' do
        expect(group.member?(member_shared, Gitlab::Access::MAINTAINER)).to be_falsey
      end
    end
  end

  describe '#max_member_access_for_user' do
    let_it_be(:group_user) { create(:user) }

    context 'with user in the group' do
      before do
        group.add_owner(group_user)
      end

      it 'returns correct access level' do
        expect(group.max_member_access_for_user(group_user)).to eq(Gitlab::Access::OWNER)
      end

      context 'when user is not active' do
        let_it_be(:group_user) { create(:user, :deactivated) }

        it 'returns NO_ACCESS' do
          expect(group.max_member_access_for_user(group_user)).to eq(Gitlab::Access::NO_ACCESS)
        end
      end
    end

    context 'when user is nil' do
      it 'returns NO_ACCESS' do
        expect(group.max_member_access_for_user(nil)).to eq(Gitlab::Access::NO_ACCESS)
      end
    end

    context 'evaluating admin access level' do
      let_it_be(:admin) { create(:admin) }

      context 'when admin mode is enabled', :enable_admin_mode do
        it 'returns OWNER by default' do
          expect(group.max_member_access_for_user(admin)).to eq(Gitlab::Access::OWNER)
        end
      end

      context 'when admin mode is disabled' do
        it 'returns NO_ACCESS' do
          expect(group.max_member_access_for_user(admin)).to eq(Gitlab::Access::NO_ACCESS)
        end
      end

      it 'returns NO_ACCESS when only concrete membership should be considered' do
        expect(group.max_member_access_for_user(admin, only_concrete_membership: true))
          .to eq(Gitlab::Access::NO_ACCESS)
      end
    end

    context 'when organization owner' do
      let_it_be(:group) { create(:group) }
      let_it_be(:org_owner) do
        create(:organization_owner, organization: organization).user
      end

      it 'returns OWNER by default' do
        expect(group.max_member_access_for_user(org_owner)).to eq(Gitlab::Access::OWNER)
      end

      context 'when organization owner is also an admin' do
        before do
          org_owner.update!(admin: true)
        end

        context 'when admin mode is enabled', :enable_admin_mode do
          it 'returns OWNER by default' do
            expect(group.max_member_access_for_user(org_owner)).to eq(Gitlab::Access::OWNER)
          end
        end

        context 'when admin mode is disabled' do
          it 'returns NO_ACCESS by default' do
            expect(group.max_member_access_for_user(org_owner)).to eq(Gitlab::Access::NO_ACCESS)
          end
        end
      end

      context 'when only concrete members' do
        it 'returns NO_ACCESS' do
          expect(group.max_member_access_for_user(org_owner, only_concrete_membership: true))
            .to eq(Gitlab::Access::NO_ACCESS)
        end
      end
    end

    context 'group shared with another group' do
      let_it_be(:parent_group_user) { create(:user) }
      let_it_be(:child_group_user) { create(:user) }

      let_it_be(:group_parent) { create(:group, :private) }
      let_it_be(:group) { create(:group, :private, parent: group_parent) }
      let_it_be(:group_child) { create(:group, :private, parent: group) }

      let_it_be(:shared_group_parent) { create(:group, :private) }
      let_it_be(:shared_group) { create(:group, :private, parent: shared_group_parent) }
      let_it_be(:shared_group_child) { create(:group, :private, parent: shared_group) }

      before do
        group_parent.add_owner(parent_group_user)
        group.add_owner(group_user)
        group_child.add_owner(child_group_user)

        create(:group_group_link, { shared_with_group: group,
                                    shared_group: shared_group,
                                    group_access: GroupMember::DEVELOPER })
      end

      context 'with user in the group' do
        it 'returns correct access level' do
          expect(shared_group_parent.max_member_access_for_user(group_user)).to eq(Gitlab::Access::NO_ACCESS)
          expect(shared_group.max_member_access_for_user(group_user)).to eq(Gitlab::Access::DEVELOPER)
          expect(shared_group_child.max_member_access_for_user(group_user)).to eq(Gitlab::Access::DEVELOPER)
        end

        context 'with lower group access level than max access level for share' do
          let(:user) { create(:user) }

          it 'returns correct access level' do
            group.add_reporter(user)

            expect(shared_group_parent.max_member_access_for_user(user)).to eq(Gitlab::Access::NO_ACCESS)
            expect(shared_group.max_member_access_for_user(user)).to eq(Gitlab::Access::REPORTER)
            expect(shared_group_child.max_member_access_for_user(user)).to eq(Gitlab::Access::REPORTER)
          end
        end
      end

      context 'with user in the parent group' do
        it 'returns correct access level' do
          expect(shared_group_parent.max_member_access_for_user(parent_group_user)).to eq(Gitlab::Access::NO_ACCESS)
          expect(shared_group.max_member_access_for_user(parent_group_user)).to eq(Gitlab::Access::NO_ACCESS)
          expect(shared_group_child.max_member_access_for_user(parent_group_user)).to eq(Gitlab::Access::NO_ACCESS)
        end
      end

      context 'with user in the child group' do
        it 'returns correct access level' do
          expect(shared_group_parent.max_member_access_for_user(child_group_user)).to eq(Gitlab::Access::NO_ACCESS)
          expect(shared_group.max_member_access_for_user(child_group_user)).to eq(Gitlab::Access::NO_ACCESS)
          expect(shared_group_child.max_member_access_for_user(child_group_user)).to eq(Gitlab::Access::NO_ACCESS)
        end
      end

      context 'unrelated project owner' do
        let(:common_id) { [Project.maximum(:id).to_i, Namespace.maximum(:id).to_i].max + 999 }
        let!(:group) { create(:group, id: common_id) }
        let!(:unrelated_project) { create(:project, id: common_id) }
        let(:user) { unrelated_project.first_owner }

        it 'returns correct access level' do
          expect(shared_group_parent.max_member_access_for_user(user)).to eq(Gitlab::Access::NO_ACCESS)
          expect(shared_group.max_member_access_for_user(user)).to eq(Gitlab::Access::NO_ACCESS)
          expect(shared_group_child.max_member_access_for_user(user)).to eq(Gitlab::Access::NO_ACCESS)
        end
      end

      context 'user without accepted access request' do
        let!(:user) { create(:user) }

        before do
          create(:group_member, :developer, :access_request, user: user, group: group)
        end

        it 'returns correct access level' do
          expect(shared_group_parent.max_member_access_for_user(user)).to eq(Gitlab::Access::NO_ACCESS)
          expect(shared_group.max_member_access_for_user(user)).to eq(Gitlab::Access::NO_ACCESS)
          expect(shared_group_child.max_member_access_for_user(user)).to eq(Gitlab::Access::NO_ACCESS)
        end
      end
    end

    context 'multiple groups shared with group' do
      let(:user) { create(:user) }
      let(:group) { create(:group, :private) }
      let(:shared_group_parent) { create(:group, :private) }
      let(:shared_group) { create(:group, :private, parent: shared_group_parent) }

      before do
        group.add_owner(user)

        create(:group_group_link, { shared_with_group: group,
                                    shared_group: shared_group,
                                    group_access: GroupMember::DEVELOPER })
        create(:group_group_link, { shared_with_group: group,
                                    shared_group: shared_group_parent,
                                    group_access: GroupMember::MAINTAINER })
      end

      it 'returns correct access level' do
        expect(shared_group.max_member_access_for_user(user)).to eq(Gitlab::Access::MAINTAINER)
      end
    end
  end

  describe '#direct_members' do
    let_it_be(:group) { create(:group, :nested) }
    let_it_be(:maintainer) { group.parent.add_member(create(:user), GroupMember::MAINTAINER) }
    let_it_be(:developer) { group.add_member(create(:user), GroupMember::DEVELOPER) }

    it 'does not return members of the parent' do
      expect(group.direct_members).not_to include(maintainer)
    end

    it 'returns the direct member of the group' do
      expect(group.direct_members).to include(developer)
    end

    context 'group sharing' do
      let!(:shared_group) { create(:group) }

      before do
        create(:group_group_link, shared_group: shared_group, shared_with_group: group)
      end

      it 'does not return members of the shared_with group' do
        expect(shared_group.direct_members).not_to(
          include(developer))
      end
    end
  end

  shared_examples_for 'members_with_parents' do
    let!(:group) { create(:group, :nested) }
    let!(:maintainer) { group.parent.add_member(create(:user), GroupMember::MAINTAINER) }
    let!(:developer) { group.add_member(create(:user), GroupMember::DEVELOPER) }
    let!(:pending_maintainer) { create(:group_member, :awaiting, :maintainer, group: group.parent) }
    let!(:pending_developer) { create(:group_member, :awaiting, :developer, group: group) }
    let!(:inactive_developer) { group.add_member(create(:user, :deactivated), GroupMember::DEVELOPER) }

    it 'returns parents active members' do
      expect(group.members_with_parents).to include(developer)
      expect(group.members_with_parents).to include(maintainer)
      expect(group.members_with_parents).not_to include(pending_developer)
      expect(group.members_with_parents).not_to include(pending_maintainer)
      expect(group.members_with_parents).not_to include(inactive_developer)
    end

    context 'group sharing' do
      let!(:shared_group) { create(:group) }

      before do
        create(:group_group_link, shared_group: shared_group, shared_with_group: group)
      end

      it 'returns shared with group active members' do
        expect(shared_group.members_with_parents).to(
          include(developer))
        expect(shared_group.members_with_parents).not_to(
          include(pending_developer))
      end
    end

    context 'when only_active_users is false' do
      subject { group.members_with_parents(only_active_users: false) }

      it 'returns parents all members' do
        expect(subject).to include(developer)
        expect(subject).to include(maintainer)
        expect(subject).not_to include(pending_developer)
        expect(subject).not_to include(pending_maintainer)
        expect(subject).to include(inactive_developer)
      end
    end
  end

  describe '#members_with_parents' do
    it_behaves_like 'members_with_parents'
  end

  describe '#authorizable_members_with_parents' do
    let(:group) { create(:group) }

    it_behaves_like 'members_with_parents'

    context 'members with associated user but also having invite_token' do
      let!(:member) { create(:group_member, :developer, :invited, user: create(:user), group: group) }

      it 'includes such members in the result' do
        expect(group.authorizable_members_with_parents).to include(member)
      end
    end

    context 'invited members' do
      let!(:member) { create(:group_member, :developer, :invited, group: group) }

      it 'does not include such members in the result' do
        expect(group.authorizable_members_with_parents).not_to include(member)
      end
    end

    context 'members from group shares' do
      let(:shared_group) { group }
      let(:shared_with_group) { create(:group) }

      before do
        create(:group_group_link, shared_group: shared_group, shared_with_group: shared_with_group)
      end

      context 'an invited member that is part of the shared_with_group' do
        let!(:member) { create(:group_member, :developer, :invited, group: shared_with_group) }

        it 'does not include such members in the result' do
          expect(shared_group.authorizable_members_with_parents).not_to(
            include(member))
        end
      end
    end
  end

  describe '#members_from_self_and_ancestors_with_effective_access_level' do
    let!(:group_parent) { create(:group, :private) }
    let!(:group) { create(:group, :private, parent: group_parent) }
    let!(:group_child) { create(:group, :private, parent: group) }

    let!(:user) { create(:user) }

    let(:parent_group_access_level) { Gitlab::Access::REPORTER }
    let(:group_access_level) { Gitlab::Access::DEVELOPER }
    let(:child_group_access_level) { Gitlab::Access::MAINTAINER }

    before do
      create(:group_member, user: user, group: group_parent, access_level: parent_group_access_level)
      create(:group_member, user: user, group: group, access_level: group_access_level)
      create(:group_member, :minimal_access, user: create(:user), source: group)
      create(:group_member, user: user, group: group_child, access_level: child_group_access_level)
    end

    it 'returns effective access level for user' do
      expect(group_parent.members_from_self_and_ancestors_with_effective_access_level.as_json).to(
        contain_exactly(
          hash_including('user_id' => user.id, 'access_level' => parent_group_access_level)
        )
      )
      expect(group.members_from_self_and_ancestors_with_effective_access_level.as_json).to(
        contain_exactly(
          hash_including('user_id' => user.id, 'access_level' => group_access_level)
        )
      )
      expect(group_child.members_from_self_and_ancestors_with_effective_access_level.as_json).to(
        contain_exactly(
          hash_including('user_id' => user.id, 'access_level' => child_group_access_level)
        )
      )
    end
  end

  context 'members-related methods' do
    let_it_be(:group) { create(:group, :nested) }
    let_it_be(:sub_group) { create(:group, parent: group) }

    let_it_be(:maintainer) { group.parent.add_member(create(:user), GroupMember::MAINTAINER) }
    let_it_be(:developer) { group.add_member(create(:user), GroupMember::DEVELOPER) }
    let_it_be(:other_developer) { group.add_member(create(:user), GroupMember::DEVELOPER) }

    describe '#hierarchy_members' do
      it 'returns parents members' do
        expect(group.hierarchy_members).to include(developer)
        expect(group.hierarchy_members).to include(maintainer)
      end

      it 'returns descendant members' do
        expect(group.hierarchy_members).to include(other_developer)
      end
    end

    describe '#hierarchy_members_with_inactive' do
      let_it_be(:maintainer_blocked) { group.parent.add_member(create(:user, :blocked), GroupMember::MAINTAINER) }

      it 'returns parents members' do
        expect(group.hierarchy_members_with_inactive).to include(developer)
        expect(group.hierarchy_members_with_inactive).to include(maintainer)
        expect(group.hierarchy_members_with_inactive).to include(maintainer_blocked)
      end

      it 'returns descendant members' do
        expect(group.hierarchy_members_with_inactive).to include(other_developer)
      end
    end

    describe '#descendant_project_members_with_inactive' do
      let_it_be(:ancestor_group_project) { create(:project, group: group) }
      let_it_be(:ancestor_group_project_member) { ancestor_group_project.add_maintainer(create(:user)) }

      let_it_be(:project) { create(:project, group: sub_group) }
      let_it_be(:project_member) { project.add_maintainer(create(:user)) }
      let_it_be(:blocked_project_member) { project.add_maintainer(create(:user, :blocked)) }

      it 'returns members of descendant projects' do
        expect(sub_group.descendant_project_members_with_inactive).to contain_exactly(project_member, blocked_project_member)
      end
    end
  end

  describe '#users_with_descendants' do
    let(:user_a) { create(:user) }
    let(:user_b) { create(:user) }

    let(:group) { create(:group) }
    let(:nested_group) { create(:group, parent: group) }
    let(:deep_nested_group) { create(:group, parent: nested_group) }

    it 'returns member users on every nest level without duplication' do
      group.add_developer(user_a)
      nested_group.add_developer(user_b)
      deep_nested_group.add_maintainer(user_a)

      expect(group.users_with_descendants).to contain_exactly(user_a, user_b)
      expect(nested_group.users_with_descendants).to contain_exactly(user_a, user_b)
      expect(deep_nested_group.users_with_descendants).to contain_exactly(user_a)
    end
  end

  describe '#refresh_members_authorized_projects' do
    let_it_be(:group) { create(:group, :nested) }
    let_it_be(:parent_group_user) { create(:user) }
    let_it_be(:group_user) { create(:user) }

    before do
      group.parent.add_maintainer(parent_group_user)
      group.add_developer(group_user)
    end

    context 'users for which authorizations refresh is executed' do
      it 'processes authorizations refresh for all members of the group' do
        expect(UserProjectAccessChangedService).to receive(:new).with(contain_exactly(group_user.id, parent_group_user.id)).and_call_original

        group.refresh_members_authorized_projects
      end

      context 'when explicitly specified to run only for direct members' do
        it 'processes authorizations refresh only for direct members of the group' do
          expect(UserProjectAccessChangedService).to receive(:new).with(contain_exactly(group_user.id)).and_call_original

          group.refresh_members_authorized_projects(direct_members_only: true)
        end
      end
    end
  end

  describe '#users_ids_of_direct_members' do
    let_it_be(:group) { create(:group, :nested) }
    let_it_be(:parent_group_user) { create(:user) }
    let_it_be(:group_user) { create(:user) }

    before do
      group.parent.add_maintainer(parent_group_user)
      group.add_developer(group_user)
    end

    it 'does not return user ids of the members of the parent' do
      expect(group.users_ids_of_direct_members).not_to include(parent_group_user.id)
    end

    it 'returns the user ids of the direct member of the group' do
      expect(group.users_ids_of_direct_members).to include(group_user.id)
    end

    context 'group sharing' do
      let!(:shared_group) { create(:group) }

      before do
        create(:group_group_link, shared_group: shared_group, shared_with_group: group)
      end

      it 'does not return the user ids of members of the shared_with group' do
        expect(shared_group.users_ids_of_direct_members).not_to(
          include(group_user.id))
      end
    end
  end

  describe '#user_ids_for_project_authorizations' do
    it 'returns the user IDs for which to refresh authorizations' do
      maintainer = create(:user)
      developer = create(:user)

      group.add_member(maintainer, GroupMember::MAINTAINER)
      group.add_member(developer, GroupMember::DEVELOPER)

      expect(group.user_ids_for_project_authorizations)
        .to include(maintainer.id, developer.id)
    end

    context 'group sharing' do
      let_it_be(:group) { create(:group) }
      let_it_be(:group_user) { create(:user) }
      let_it_be(:shared_group) { create(:group) }

      before do
        group.add_developer(group_user)
        create(:group_group_link, shared_group: shared_group, shared_with_group: group)
      end

      it 'returns the user IDs for shared with group members' do
        expect(shared_group.user_ids_for_project_authorizations).to(
          include(group_user.id))
      end
    end

    context 'distinct user ids' do
      let_it_be(:subgroup) { create(:group, :nested) }
      let_it_be(:user) { create(:user) }
      let_it_be(:shared_with_group) { create(:group) }
      let_it_be(:other_subgroup_user) { create(:user) }

      before do
        create(:group_group_link, shared_group: subgroup, shared_with_group: shared_with_group)
        subgroup.add_maintainer(other_subgroup_user)

        # `user` is added as a direct member of the parent group, the subgroup
        # and another group shared with the subgroup.
        subgroup.parent.add_maintainer(user)
        subgroup.add_developer(user)
        shared_with_group.add_guest(user)
      end

      it 'returns only distinct user ids of users for which to refresh authorizations' do
        expect(subgroup.user_ids_for_project_authorizations).to(
          contain_exactly(user.id, other_subgroup_user.id))
      end
    end
  end

  describe '#self_and_hierarchy_intersecting_with_user_groups' do
    let_it_be(:user) { create(:user) }
    let(:subject) { group.self_and_hierarchy_intersecting_with_user_groups(user) }

    it 'makes a call to GroupsFinder' do
      expect(GroupsFinder).to receive_message_chain(:new, :execute, :unscope)

      subject
    end

    context 'when the group is private' do
      let_it_be(:group) { create(:group, :private) }

      context 'when the user is not a member of the group' do
        it 'is an empty array' do
          expect(subject).to eq([])
        end
      end

      context 'when the user is a member of the group' do
        before do
          group.add_developer(user)
        end

        it 'is equal to the group' do
          expect(subject).to match_array([group])
        end
      end

      context 'when the group has a sub group' do
        let_it_be(:subgroup) { create(:group, :private, parent: group) }

        context 'when the user is not a member of the subgroup' do
          it 'is an empty array' do
            expect(subject).to eq([])
          end
        end

        context 'when the user is a member of the subgroup' do
          before do
            subgroup.add_developer(user)
          end

          it 'is equal to the group and subgroup' do
            expect(subject).to match_array([group, subgroup])
          end

          context 'when the group has an ancestor' do
            let_it_be(:ancestor) { create(:group, :private) }

            before do
              group.parent = ancestor
              group.save!
            end

            it 'is equal to the ancestor, group and subgroup' do
              expect(subject).to match_array([ancestor, group, subgroup])
            end
          end
        end
      end
    end

    context 'when the group is public' do
      let_it_be(:group) { create(:group, :public) }

      it 'is equal to the public group regardless of membership' do
        expect(subject).to match_array([group])
      end
    end
  end

  describe '#update_two_factor_requirement_for_members' do
    let_it_be_with_reload(:user) { create(:user) }

    context 'group membership' do
      it 'enables two_factor_requirement for group members' do
        group.add_member(user, GroupMember::OWNER)
        group.update!(require_two_factor_authentication: true)

        group.update_two_factor_requirement_for_members

        expect(user.reload.require_two_factor_authentication_from_group).to be_truthy
      end

      it 'disables two_factor_requirement for group members' do
        user.update!(require_two_factor_authentication_from_group: true)
        group.add_member(user, GroupMember::OWNER)
        group.update!(require_two_factor_authentication: false)

        group.update_two_factor_requirement_for_members

        expect(user.reload.require_two_factor_authentication_from_group).to be_falsey
      end
    end

    context 'sub groups and projects' do
      context 'expanded group members' do
        let(:indirect_user) { create(:user) }

        context 'two_factor_requirement is enabled' do
          context 'two_factor_requirement is also enabled for ancestor group' do
            it 'enables two_factor_requirement for subgroup member' do
              subgroup = create(:group, :nested, parent: group)
              subgroup.add_member(indirect_user, GroupMember::OWNER)
              group.update!(require_two_factor_authentication: true)

              group.update_two_factor_requirement_for_members

              expect(indirect_user.reload.require_two_factor_authentication_from_group).to be_truthy
            end
          end

          context 'two_factor_requirement is disabled for ancestor group' do
            it 'enables two_factor_requirement for subgroup member' do
              subgroup = create(:group, :nested, parent: group, require_two_factor_authentication: true)
              subgroup.add_member(indirect_user, GroupMember::OWNER)
              group.update!(require_two_factor_authentication: false)

              group.update_two_factor_requirement_for_members

              expect(indirect_user.reload.require_two_factor_authentication_from_group).to be_truthy
            end

            it 'enable two_factor_requirement for ancestor group member' do
              ancestor_group = create(:group)
              ancestor_group.add_member(indirect_user, GroupMember::OWNER)
              group.update!(parent: ancestor_group)
              group.update!(require_two_factor_authentication: true)

              group.update_two_factor_requirement_for_members

              expect(indirect_user.reload.require_two_factor_authentication_from_group).to be_truthy
            end
          end
        end

        context 'two_factor_requirement is disabled' do
          context 'two_factor_requirement is enabled for ancestor group' do
            it 'enables two_factor_requirement for subgroup member' do
              subgroup = create(:group, :nested, parent: group)
              subgroup.add_member(indirect_user, GroupMember::OWNER)
              group.update!(require_two_factor_authentication: true)

              group.update_two_factor_requirement_for_members

              expect(indirect_user.reload.require_two_factor_authentication_from_group).to be_truthy
            end
          end

          context 'two_factor_requirement is also disabled for ancestor group' do
            it 'disables two_factor_requirement for subgroup member' do
              subgroup = create(:group, :nested, parent: group)
              subgroup.add_member(indirect_user, GroupMember::OWNER)
              group.update!(require_two_factor_authentication: false)

              group.update_two_factor_requirement_for_members

              expect(indirect_user.reload.require_two_factor_authentication_from_group).to be_falsey
            end

            it 'disables two_factor_requirement for ancestor group member' do
              ancestor_group = create(:group, require_two_factor_authentication: false)
              indirect_user.update!(require_two_factor_authentication_from_group: true)
              ancestor_group.add_member(indirect_user, GroupMember::OWNER)
              group.update!(require_two_factor_authentication: false)

              group.update_two_factor_requirement_for_members

              expect(indirect_user.reload.require_two_factor_authentication_from_group).to be_falsey
            end
          end
        end
      end

      context 'project members' do
        it 'does not enable two_factor_requirement for child project member' do
          project = create(:project, group: group)
          project.add_maintainer(user)
          group.update!(require_two_factor_authentication: true)

          group.update_two_factor_requirement_for_members

          expect(user.reload.require_two_factor_authentication_from_group).to be_falsey
        end

        it 'does not enable two_factor_requirement for subgroup child project member' do
          subgroup = create(:group, :nested, parent: group)
          project = create(:project, group: subgroup)
          project.add_maintainer(user)
          group.update!(require_two_factor_authentication: true)

          group.update_two_factor_requirement_for_members

          expect(user.reload.require_two_factor_authentication_from_group).to be_falsey
        end
      end
    end
  end

  describe '#update_two_factor_requirement' do
    it 'enqueues a job when require_two_factor_authentication is changed' do
      expect(Groups::UpdateTwoFactorRequirementForMembersWorker).to receive(:perform_async).with(group.id)

      group.update!(require_two_factor_authentication: true)
    end

    it 'enqueues a job when two_factor_grace_period is changed' do
      expect(Groups::UpdateTwoFactorRequirementForMembersWorker).to receive(:perform_async).with(group.id)

      group.update!(two_factor_grace_period: 23)
    end

    it 'does not enqueue a job when other attributes are changed' do
      expect(Groups::UpdateTwoFactorRequirementForMembersWorker).not_to receive(:perform_async).with(group.id)

      group.update!(description: 'foobar')
    end
  end

  describe '#path_changed_hook' do
    let(:system_hook_service) { SystemHooksService.new }

    context 'for a new group' do
      let(:group) { build(:group) }

      before do
        expect(group).to receive(:system_hook_service).and_return(system_hook_service)
      end

      it 'does not trigger system hook' do
        expect(system_hook_service).to receive(:execute_hooks_for).with(group, :create)

        group.save!
      end
    end

    context 'for an existing group' do
      let(:group) { create(:group, path: 'old-path') }

      context 'when the path is changed' do
        let(:new_path) { 'very-new-path' }

        it 'triggers the rename system hook' do
          expect(group).to receive(:system_hook_service).and_return(system_hook_service)
          expect(system_hook_service).to receive(:execute_hooks_for).with(group, :rename)

          group.update!(path: new_path)
        end
      end

      context 'when the path is not changed' do
        it 'does not trigger system hook' do
          expect(group).not_to receive(:system_hook_service)

          group.update!(name: 'new name')
        end
      end

      context 'when the path is changed to existing pages unique domain' do
        let(:new_path) { 'existing-domain' }

        it 'rejects path' do
          # Simulate the existing domain being in use
          create(:project_setting, pages_unique_domain: 'existing-domain')

          expect(group.update(path: new_path)).to be_falsey
          expect(group.errors.full_messages.to_sentence).to eq('Group URL has already been taken')
        end
      end
    end
  end

  describe '#highest_group_member' do
    let(:nested_group) { create(:group, parent: group) }
    let(:nested_group_2) { create(:group, parent: nested_group) }
    let(:user) { create(:user) }

    subject(:highest_group_member) { nested_group_2.highest_group_member(user) }

    context 'when the user is not a member of any group in the hierarchy' do
      it { is_expected.to be_nil }
    end

    context 'when access request to group is pending' do
      before do
        create(:group_member, requested_at: Time.current.utc, source: nested_group, user: user)
      end

      it { is_expected.to be_nil }
    end

    context 'when the user is only a member of one group in the hierarchy' do
      before do
        nested_group.add_developer(user)
      end

      it 'returns that group member' do
        expect(highest_group_member.access_level).to eq(Gitlab::Access::DEVELOPER)
      end
    end

    context 'when the user is a member of several groups in the hierarchy' do
      before do
        group.add_owner(user)
        nested_group.add_developer(user)
        nested_group_2.add_maintainer(user)
      end

      it 'returns the group member with the highest access level' do
        expect(highest_group_member.access_level).to eq(Gitlab::Access::OWNER)
      end
    end
  end

  describe '#bots' do
    subject { group.bots.allow_cross_joins_across_databases(url: "https://gitlab.com/gitlab-org/gitlab/-/issues/436662") }

    let_it_be(:group) { create(:group) }
    let_it_be(:project_bot) { create(:user, :project_bot) }
    let_it_be(:user) { create(:user) }

    before_all do
      [project_bot, user].each do |member|
        group.add_maintainer(member)
      end
    end

    it { is_expected.to contain_exactly(project_bot) }
    it { is_expected.not_to include(user) }
  end

  describe '#related_group_ids' do
    let(:nested_group) { create(:group, parent: group) }
    let(:shared_with_group) { create(:group, parent: group) }

    before do
      create(:group_group_link, shared_group: nested_group, shared_with_group: shared_with_group)
    end

    subject(:related_group_ids) { nested_group.related_group_ids }

    it 'returns id' do
      expect(related_group_ids).to include(nested_group.id)
    end

    it 'returns ancestor id' do
      expect(related_group_ids).to include(group.id)
    end

    it 'returns shared with group id' do
      expect(related_group_ids).to include(shared_with_group.id)
    end

    context 'with more than one ancestor group' do
      let(:ancestor_group) { create(:group) }

      before do
        group.update!(parent: ancestor_group)
      end

      it 'returns all ancestor group ids' do
        expect(related_group_ids).to(
          include(group.id, ancestor_group.id))
      end
    end

    context 'with more than one shared with group' do
      let(:another_shared_with_group) { create(:group, parent: group) }

      before do
        create(:group_group_link, shared_group: nested_group, shared_with_group: another_shared_with_group)
      end

      it 'returns all shared with group ids' do
        expect(related_group_ids).to(
          include(shared_with_group.id, another_shared_with_group.id))
      end
    end
  end

  context 'with uploads' do
    it_behaves_like 'model with uploads', true do
      let(:model_object) { create(:group, :with_avatar) }
      let(:upload_attribute) { :avatar }
      let(:uploader_class) { AttachmentUploader }
    end
  end

  describe '#first_auto_devops_config' do
    let(:group) { create(:group) }

    subject(:fetch_config) { group.first_auto_devops_config }

    where(:instance_value, :group_value, :config) do
      # Instance level enabled
      true | nil    | { status: true, scope: :instance }
      true | true   | { status: true, scope: :group }
      true | false  | { status: false, scope: :group }

      # Instance level disabled
      false | nil    | { status: false, scope: :instance }
      false | true   | { status: true, scope: :group }
      false | false  | { status: false, scope: :group }
    end

    with_them do
      before do
        stub_application_setting(auto_devops_enabled: instance_value)

        group.update_attribute(:auto_devops_enabled, group_value)
      end

      it { is_expected.to eq(config) }
    end

    context 'with parent groups' do
      let(:parent) { create(:group) }

      where(:instance_value, :parent_value, :group_value, :config) do
        # Instance level enabled
        true | nil   | nil    | { status: true, scope: :instance }
        true | nil   | true   | { status: true, scope: :group }
        true | nil   | false  | { status: false, scope: :group }

        true | true  | nil    | { status: true, scope: :group }
        true | true  | true   | { status: true, scope: :group }
        true | true  | false  | { status: false, scope: :group }

        true | false | nil    | { status: false, scope: :group }
        true | false | true   | { status: true, scope: :group }
        true | false | false  | { status: false, scope: :group }

        # Instance level disable
        false | nil  | nil    | { status: false, scope: :instance }
        false | nil  | true   | { status: true, scope: :group }
        false | nil  | false  | { status: false, scope: :group }

        false | true | nil    | { status: true, scope: :group }
        false | true | true   | { status: true, scope: :group }
        false | true | false  | { status: false, scope: :group }

        false | false | nil   | { status: false, scope: :group }
        false | false | true  | { status: true, scope: :group }
        false | false | false | { status: false, scope: :group }
      end

      with_them do
        def define_cache_expectations(cache_key)
          if group_value.nil?
            expect(Rails.cache).to receive(:fetch).with(start_with(cache_key), expires_in: 1.day)
          else
            expect(Rails.cache).not_to receive(:fetch).with(start_with(cache_key), expires_in: 1.day)
          end
        end

        before do
          stub_application_setting(auto_devops_enabled: instance_value)

          group.update!(
            auto_devops_enabled: group_value,
            parent: parent
          )
          parent.update!(auto_devops_enabled: parent_value)

          group.reload # Reload so we get the populated traversal IDs
        end

        it { is_expected.to eq(config) }

        it 'caches the parent config when group auto_devops_enabled is nil' do
          cache_key = "namespaces:{#{group.traversal_ids.first}}:first_auto_devops_config:#{group.id}"
          define_cache_expectations(cache_key)

          fetch_config
        end
      end

      context 'cache expiration' do
        before do
          group.update!(parent: parent)

          reload_models(parent)
        end

        it 'clears both self and descendant cache when the parent value is updated' do
          expect(Rails.cache).to receive(:delete_multi)
            .with(
              match_array(
                [
                  start_with("namespaces:{#{parent.traversal_ids.first}}:first_auto_devops_config:#{parent.id}"),
                  start_with("namespaces:{#{parent.traversal_ids.first}}:first_auto_devops_config:#{group.id}")
                ])
            )

          parent.update!(auto_devops_enabled: true)
        end

        it 'only clears self cache when there are no dependents' do
          expect(Rails.cache).to receive(:delete_multi)
            .with([start_with("namespaces:{#{group.traversal_ids.first}}:first_auto_devops_config:#{group.id}")])

          group.update!(auto_devops_enabled: true)
        end
      end
    end
  end

  describe '#auto_devops_enabled?' do
    subject { group.auto_devops_enabled? }

    context 'when auto devops is explicitly enabled on group' do
      let(:group) { create(:group, :auto_devops_enabled) }

      it { is_expected.to be_truthy }
    end

    context 'when auto devops is explicitly disabled on group' do
      let(:group) { create(:group, :auto_devops_disabled) }

      it { is_expected.to be_falsy }
    end

    context 'when auto devops is implicitly enabled or disabled' do
      before do
        stub_application_setting(auto_devops_enabled: false)

        group.update!(parent: parent_group)
      end

      context 'when auto devops is enabled on root group' do
        let(:root_group) { create(:group, :auto_devops_enabled) }
        let(:subgroup) { create(:group, parent: root_group) }
        let(:parent_group) { create(:group, parent: subgroup) }

        it { is_expected.to be_truthy }
      end

      context 'when auto devops is disabled on root group' do
        let(:root_group) { create(:group, :auto_devops_disabled) }
        let(:subgroup) { create(:group, parent: root_group) }
        let(:parent_group) { create(:group, parent: subgroup) }

        it { is_expected.to be_falsy }
      end

      context 'when auto devops is disabled on parent group and enabled on root group' do
        let(:root_group) { create(:group, :auto_devops_enabled) }
        let(:parent_group) { create(:group, :auto_devops_disabled, parent: root_group) }

        it { is_expected.to be_falsy }
      end
    end
  end

  describe 'project_creation_level' do
    it 'outputs the default one if it is nil' do
      group = create(:group, project_creation_level: nil)

      expect(group.project_creation_level).to eq(Gitlab::CurrentSettings.default_project_creation)
    end
  end

  describe 'subgroup_creation_level' do
    it 'defaults to maintainers' do
      expect(group.subgroup_creation_level)
        .to eq(Gitlab::Access::MAINTAINER_SUBGROUP_ACCESS)
    end
  end

  describe '#access_request_approvers_to_be_notified' do
    let_it_be(:group) { create(:group, :public) }

    it 'returns a maximum of ten owners of the group in recent_sign_in descending order' do
      limit = 2
      stub_const("Member::ACCESS_REQUEST_APPROVERS_TO_BE_NOTIFIED_LIMIT", limit)
      users = create_list(:user, limit + 1, :with_sign_ins)
      active_owners = users.map do |user|
        create(:group_member, :owner, group: group, user: user)
      end

      active_owners_in_recent_sign_in_desc_order = group.members_and_requesters
                                                        .id_in(active_owners)
                                                        .order_recent_sign_in.limit(limit)

      expect(group.access_request_approvers_to_be_notified).to eq(active_owners_in_recent_sign_in_desc_order)
    end

    it 'returns active, non_invited, non_requested owners of the group' do
      owner = create(:group_member, :owner, source: group)

      create(:group_member, :maintainer, group: group)
      create(:group_member, :owner, :invited, group: group)
      create(:group_member, :owner, :access_request, group: group)
      create(:group_member, :owner, :blocked, group: group)

      expect(group.access_request_approvers_to_be_notified.to_a).to eq([owner])
    end
  end

  describe '.preset_root_ancestor_for' do
    let_it_be(:rootgroup, reload: true) { create(:group) }
    let_it_be(:subgroup, reload: true) { create(:group, parent: rootgroup) }
    let_it_be(:subgroup2, reload: true) { create(:group, parent: subgroup) }

    it 'does noting for single group' do
      expect(subgroup).not_to receive(:self_and_ancestors)

      described_class.preset_root_ancestor_for([subgroup])
    end

    it 'sets the same root_ancestor for multiple groups' do
      expect(subgroup).not_to receive(:self_and_ancestors)
      expect(subgroup2).not_to receive(:self_and_ancestors)

      described_class.preset_root_ancestor_for([rootgroup, subgroup, subgroup2])

      expect(subgroup.root_ancestor).to eq(rootgroup)
      expect(subgroup2.root_ancestor).to eq(rootgroup)
    end
  end

  describe "#default_branch_name" do
    context "when group.namespace_settings does not have a default branch name" do
      it "returns nil" do
        expect(group.default_branch_name).to be_nil
      end
    end

    context "when group.namespace_settings has a default branch name" do
      let(:example_branch_name) { "example_branch_name" }

      before do
        allow(group.namespace_settings)
          .to receive(:default_branch_name)
          .and_return(example_branch_name)
      end

      it "returns the default branch name" do
        expect(group.default_branch_name).to eq(example_branch_name)
      end
    end
  end

  describe "#access_level_roles" do
    let(:group) { create(:group) }

    it "returns the correct roles" do
      expect(group.access_level_roles).to eq(
        {
          'Guest' => 10,
          'Planner' => 15,
          'Reporter' => 20,
          'Developer' => 30,
          'Maintainer' => 40,
          'Owner' => 50
        }
      )
    end
  end

  describe '#membership_locked?' do
    it 'returns false' do
      expect(build(:group)).not_to be_membership_locked
    end
  end

  describe '#first_owner' do
    context 'the group has owners' do
      it 'is the first owner' do
        user_1 = create(:user)
        user_2 = create(:user)
        group.add_owner(user_2)
        group.add_owner(user_1)

        # The senior-most user (not member) who is an OWNER in the group
        # is always treated as the first owner
        expect(group.first_owner)
          .to eq(user_1)
          .and be_a(User)
      end
    end

    context 'the group has a parent' do
      let(:parent) { build(:group) }

      before do
        group.parent = parent
        parent.add_owner(create(:user))
      end

      it 'is the first owner of the parent' do
        expect(group.first_owner)
          .to eq(parent.first_owner)
          .and be_a(User)
      end
    end

    context 'we fallback to group.owner' do
      before do
        group.owner = build(:user)
      end

      it 'is the group.owner' do
        expect(group.first_owner)
          .to eq(group.owner)
          .and be_a(User)
      end
    end
  end

  describe '#parent_allows_two_factor_authentication?' do
    it 'returns true for top-level group' do
      expect(group.parent_allows_two_factor_authentication?).to eq(true)
    end

    context 'for subgroup' do
      let(:subgroup) { create(:group, parent: group) }

      it 'returns true if parent group allows two factor authentication for its descendants' do
        expect(subgroup.parent_allows_two_factor_authentication?).to eq(true)
      end

      it 'returns true if parent group allows two factor authentication for its descendants' do
        group.namespace_settings.update!(allow_mfa_for_subgroups: false)

        expect(subgroup.parent_allows_two_factor_authentication?).to eq(false)
      end
    end
  end

  describe 'has_project_with_service_desk_enabled?' do
    let_it_be_with_refind(:group) { create(:group, :private) }

    subject { group.has_project_with_service_desk_enabled? }

    before do
      allow(::ServiceDesk).to receive(:supported?).and_return(true)
    end

    context 'when service desk is enabled' do
      context 'for top level group' do
        let_it_be(:project) { create(:project, group: group, service_desk_enabled: true) }

        it { is_expected.to eq(true) }

        context 'when service desk is not supported' do
          before do
            allow(::ServiceDesk).to receive(:supported?).and_return(false)
          end

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

      context 'for subgroup project' do
        let_it_be(:subgroup) { create(:group, :private, parent: group) }
        let_it_be(:project) { create(:project, group: subgroup, service_desk_enabled: true) }

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

    context 'when none of group child projects has service desk enabled' do
      let_it_be(:project) { create(:project, group: group, service_desk_enabled: false) }

      before do
        project.update!(service_desk_enabled: false)
      end

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

  describe 'with Debian Distributions' do
    subject { create(:group) }

    it_behaves_like 'model with Debian distributions'
  end

  describe '.ids_with_disabled_email' do
    let_it_be(:parent_1) { create(:group) }
    let_it_be(:child_1) { create(:group, parent: parent_1) }

    let_it_be(:parent_2) { create(:group) }
    let_it_be(:child_2) { create(:group, parent: parent_2) }

    let_it_be(:other_group) { create(:group) }

    shared_examples 'returns namespaces with disabled email' do
      subject(:group_ids_where_email_is_disabled) { described_class.ids_with_disabled_email([child_1, child_2, other_group]) }

      it "when a group's parent has disabled emails" do
        parent_1.update_attribute(:emails_enabled, false)
        is_expected.to eq(Set.new([child_1.id]))
      end

      it "when a group itself has disabled emails" do
        child_2.update_attribute(:emails_enabled, false)
        is_expected.to eq(Set.new([child_2.id]))
      end
    end

    it_behaves_like 'returns namespaces with disabled email'
  end

  describe '.timelogs' do
    let(:project) { create(:project, namespace: group) }
    let(:issue) { create(:issue, project: project) }
    let(:other_project) { create(:project, namespace: create(:group)) }
    let(:other_issue) { create(:issue, project: other_project) }

    let!(:timelog1) { create(:timelog, issue: issue) }
    let!(:timelog2) { create(:timelog, issue: other_issue) }
    let!(:timelog3) { create(:timelog, issue: issue) }

    it 'returns timelogs belonging to the group' do
      expect(group.timelogs).to contain_exactly(timelog1, timelog3)
    end
  end

  describe '.crm_organizations' do
    it 'returns crm_organizations belonging to the group' do
      crm_organization1 = create(:crm_organization, group: group)
      create(:crm_organization)
      crm_organization3 = create(:crm_organization, group: group)

      expect(group.crm_organizations).to contain_exactly(crm_organization1, crm_organization3)
    end
  end

  describe '.contacts' do
    it 'returns contacts belonging to the group' do
      contact1 = create(:contact, group: group)
      create(:contact)
      contact3 = create(:contact, group: group)

      expect(group.contacts).to contain_exactly(contact1, contact3)
    end
  end

  describe '#to_ability_name' do
    it 'returns group' do
      group = build(:group)

      expect(group.to_ability_name).to eq('group')
    end
  end

  context 'with export' do
    let(:group) { create(:group) }
    let(:export_file) { fixture_file_upload('spec/fixtures/group_export.tar.gz') }
    let(:export) { create(:import_export_upload, group: group, export_file: export_file) }

    it '#export_file_exists? returns true' do
      expect(group.export_file_exists?(export.user)).to be true
    end

    it '#export_archive_exists? returns true' do
      expect(group.export_archive_exists?(export.user)).to be true
    end
  end

  describe '#import_export_upload_by_user' do
    let(:group) { create(:group) }
    let(:user) { create(:user) }
    let!(:import_export_upload) { create(:import_export_upload, group: group, user: user) }

    it 'returns the import_export_upload' do
      expect(group.import_export_upload_by_user(user)).to eq import_export_upload
    end

    context 'when import_export_upload does not exist for user' do
      let(:import_export_upload) { create(:import_export_upload, group: group) }

      it 'returns nil' do
        expect(group.import_export_upload_by_user(user)).to be_nil
      end
    end
  end

  describe '#open_issues_count', :aggregate_failures do
    let(:group) { build(:group) }

    it 'provides the issue count' do
      expect(group.open_issues_count).to eq 0
    end

    it 'invokes the count service with current_user' do
      user = build(:user)
      count_service = instance_double(Groups::OpenIssuesCountService)
      expect(Groups::OpenIssuesCountService).to receive(:new).with(group, user).and_return(count_service)
      expect(count_service).to receive(:count)

      group.open_issues_count(user)
    end

    it 'invokes the count service with no current_user' do
      count_service = instance_double(Groups::OpenIssuesCountService)
      expect(Groups::OpenIssuesCountService).to receive(:new).with(group, nil).and_return(count_service)
      expect(count_service).to receive(:count)

      group.open_issues_count
    end
  end

  describe '#open_merge_requests_count', :aggregate_failures do
    let(:group) { build(:group) }

    it 'provides the merge request count' do
      expect(group.open_merge_requests_count).to eq 0
    end

    it 'invokes the count service with current_user' do
      user = build(:user)
      count_service = instance_double(Groups::MergeRequestsCountService)
      expect(Groups::MergeRequestsCountService).to receive(:new).with(group, user).and_return(count_service)
      expect(count_service).to receive(:count)

      group.open_merge_requests_count(user)
    end

    it 'invokes the count service with no current_user' do
      count_service = instance_double(Groups::MergeRequestsCountService)
      expect(Groups::MergeRequestsCountService).to receive(:new).with(group, nil).and_return(count_service)
      expect(count_service).to receive(:count)

      group.open_merge_requests_count
    end
  end

  describe '#dependency_proxy_image_prefix' do
    let_it_be(:group) { build_stubbed(:group, path: 'GroupWithUPPERcaseLetters') }

    it 'converts uppercase letters to lowercase' do
      expect(group.dependency_proxy_image_prefix).to end_with("/groupwithuppercaseletters#{DependencyProxy::URL_SUFFIX}")
    end

    it 'removes the protocol' do
      expect(group.dependency_proxy_image_prefix).not_to include('http')
    end

    it 'does not include /groups' do
      expect(group.dependency_proxy_image_prefix).not_to include('/groups')
    end
  end

  describe '#dependency_proxy_image_ttl_policy' do
    subject(:ttl_policy) { group.dependency_proxy_image_ttl_policy }

    it 'builds a new policy if one does not exist', :aggregate_failures do
      expect(ttl_policy.ttl).to eq(90)
      expect(ttl_policy.enabled).to eq(false)
      expect(ttl_policy.created_at).to be_nil
      expect(ttl_policy.updated_at).to be_nil
    end

    context 'with existing policy' do
      before do
        group.dependency_proxy_image_ttl_policy.update!(ttl: 30, enabled: true)
      end

      it 'returns the policy if it already exists', :aggregate_failures do
        expect(ttl_policy.ttl).to eq(30)
        expect(ttl_policy.enabled).to eq(true)
        expect(ttl_policy.created_at).not_to be_nil
        expect(ttl_policy.updated_at).not_to be_nil
      end
    end
  end

  describe '#dependency_proxy_setting' do
    subject(:setting) { group.dependency_proxy_setting }

    it 'builds a new policy if one does not exist', :aggregate_failures do
      expect(setting.enabled).to eq(true)
      expect(setting).not_to be_persisted
    end

    context 'with existing policy' do
      before do
        group.dependency_proxy_setting.update!(enabled: false)
      end

      it 'returns the policy if it already exists', :aggregate_failures do
        expect(setting.enabled).to eq(false)
        expect(setting).to be_persisted
      end
    end
  end

  describe '#crm_enabled?' do
    it 'returns true where no crm_settings exist' do
      expect(group.crm_enabled?).to be_truthy
    end

    it 'returns false where crm_settings.state is disabled' do
      create(:crm_settings, enabled: false, group: group)

      expect(group.crm_enabled?).to be_falsey
    end

    it 'returns true where crm_settings.state is enabled' do
      create(:crm_settings, enabled: true, group: group)

      expect(group.crm_enabled?).to be_truthy
    end

    it 'returns true where crm_settings.state is enabled for subgroup' do
      subgroup = create(:group, parent: group)

      expect(subgroup.crm_enabled?).to be_truthy
    end
  end

  describe '.get_ids_by_ids_or_paths' do
    let(:group_path) { 'group_path' }
    let!(:group) { create(:group, path: group_path) }
    let(:group_id) { group.id }

    it 'returns ids matching records based on paths' do
      expect(described_class.get_ids_by_ids_or_paths(nil, [group_path])).to match_array([group_id])
    end

    it 'returns ids matching records based on ids' do
      expect(described_class.get_ids_by_ids_or_paths([group_id], nil)).to match_array([group_id])
    end

    it 'returns ids matching records based on both paths and ids' do
      new_group_id = create(:group).id

      expect(described_class.get_ids_by_ids_or_paths([new_group_id], [group_path])).to match_array([group_id, new_group_id])
    end
  end

  describe '.descendant_groups_counts' do
    let_it_be(:parent) { create(:group) }
    let_it_be(:group) { create(:group, parent: parent) }
    let_it_be(:project) { create(:project, namespace: parent) }

    subject(:descendant_groups_counts) { described_class.id_in(parent).descendant_groups_counts }

    it 'return a hash of group id and descendant groups count without projects' do
      expect(descendant_groups_counts).to eq({ parent.id => 1 })
    end
  end

  describe '.projects_counts' do
    let_it_be(:parent) { create(:group) }
    let_it_be(:group) { create(:group, parent: parent) }
    let_it_be(:project) { create(:project, namespace: parent) }
    let_it_be(:archived_project) { create(:project, :archived, namespace: parent) }

    subject(:projects_counts) { described_class.id_in(parent).projects_counts }

    it 'return a hash of group id and projects count without counting archived projects' do
      expect(projects_counts).to eq({ parent.id => 1 })
    end
  end

  describe '.group_members_counts' do
    let_it_be(:parent) { create(:group) }
    let_it_be(:group) { create(:group, parent: parent) }

    before_all do
      create(:group_member, group: parent)
      create(:group_member, group: parent, requested_at: Time.current)
      create(:group_member, group: group)
    end

    subject(:group_members_counts) { described_class.id_in(parent).group_members_counts }

    it 'return a hash of group id and approved direct group members' do
      expect(group_members_counts).to eq({ parent.id => 1 })
    end
  end

  describe '#shared_with_group_links_visible_to_user' do
    let_it_be(:admin) { create :admin }
    let_it_be(:normal_user) { create :user }
    let_it_be(:user_with_access) { create :user }
    let_it_be(:user_with_parent_access) { create :user }
    let_it_be(:user_without_access) { create :user }
    let_it_be(:shared_group) { create :group }
    let_it_be(:parent_group) { create :group, :private }
    let_it_be(:shared_with_private_group) { create :group, :private, parent: parent_group }
    let_it_be(:shared_with_internal_group) { create :group, :internal }
    let_it_be(:shared_with_public_group) { create :group, :public }
    let_it_be(:private_group_group_link) { create(:group_group_link, shared_group: shared_group, shared_with_group: shared_with_private_group) }
    let_it_be(:internal_group_group_link) { create(:group_group_link, shared_group: shared_group, shared_with_group: shared_with_internal_group) }
    let_it_be(:public_group_group_link) { create(:group_group_link, shared_group: shared_group, shared_with_group: shared_with_public_group) }

    before do
      shared_with_private_group.add_developer(user_with_access)
      parent_group.add_developer(user_with_parent_access)
    end

    context 'when user is admin', :enable_admin_mode do
      it 'returns all existing shared group links' do
        expect(shared_group.shared_with_group_links_visible_to_user(admin)).to contain_exactly(private_group_group_link, internal_group_group_link, public_group_group_link)
      end
    end

    context 'when user is nil' do
      it 'returns only link of public shared group' do
        expect(shared_group.shared_with_group_links_visible_to_user(nil)).to contain_exactly(public_group_group_link)
      end
    end

    context 'when user has no access to private shared group' do
      it 'returns links of internal and public shared groups' do
        expect(shared_group.shared_with_group_links_visible_to_user(normal_user)).to contain_exactly(internal_group_group_link, public_group_group_link)
      end
    end

    context 'when user is member of private shared group' do
      it 'returns links of private, internal and public shared groups' do
        expect(shared_group.shared_with_group_links_visible_to_user(user_with_access)).to contain_exactly(private_group_group_link, internal_group_group_link, public_group_group_link)
      end
    end

    context 'when user is inherited member of private shared group' do
      it 'returns links of private, internal and public shared groups' do
        expect(shared_group.shared_with_group_links_visible_to_user(user_with_parent_access)).to contain_exactly(private_group_group_link, internal_group_group_link, public_group_group_link)
      end
    end
  end

  describe '#enforced_runner_token_expiration_interval and #effective_runner_token_expiration_interval' do
    shared_examples 'no enforced expiration interval' do
      it { expect(subject.enforced_runner_token_expiration_interval).to be_nil }
    end

    shared_examples 'enforced expiration interval' do |enforced_interval:|
      it { expect(subject.enforced_runner_token_expiration_interval).to eq(enforced_interval) }
    end

    shared_examples 'no effective expiration interval' do
      it { expect(subject.effective_runner_token_expiration_interval).to be_nil }
    end

    shared_examples 'effective expiration interval' do |effective_interval:|
      it { expect(subject.effective_runner_token_expiration_interval).to eq(effective_interval) }
    end

    context 'when there is no interval in group settings' do
      let_it_be(:group) { create(:group) }

      subject { group }

      it_behaves_like 'no enforced expiration interval'
      it_behaves_like 'no effective expiration interval'
    end

    context 'when there is a group interval' do
      let(:group_settings) { create(:namespace_settings, runner_token_expiration_interval: 3.days.to_i) }

      subject { create(:group, namespace_settings: group_settings) }

      it_behaves_like 'no enforced expiration interval'
      it_behaves_like 'effective expiration interval', effective_interval: 3.days
    end

    # runner_token_expiration_interval should not affect the expiration interval, only
    # group_runner_token_expiration_interval should.
    context 'when there is a site-wide enforced shared interval' do
      before do
        stub_application_setting(runner_token_expiration_interval: 5.days.to_i)
      end

      let_it_be(:group) { create(:group) }

      subject { group }

      it_behaves_like 'no enforced expiration interval'
      it_behaves_like 'no effective expiration interval'
    end

    context 'when there is a site-wide enforced group interval' do
      before do
        stub_application_setting(group_runner_token_expiration_interval: 5.days.to_i)
      end

      let_it_be(:group) { create(:group) }

      subject { group }

      it_behaves_like 'enforced expiration interval', enforced_interval: 5.days
      it_behaves_like 'effective expiration interval', effective_interval: 5.days
    end

    # project_runner_token_expiration_interval should not affect the expiration interval, only
    # group_runner_token_expiration_interval should.
    context 'when there is a site-wide enforced project interval' do
      before do
        stub_application_setting(project_runner_token_expiration_interval: 5.days.to_i)
      end

      let_it_be(:group) { create(:group) }

      subject { group }

      it_behaves_like 'no enforced expiration interval'
      it_behaves_like 'no effective expiration interval'
    end

    # runner_token_expiration_interval should not affect the expiration interval, only
    # subgroup_runner_token_expiration_interval should.
    context 'when there is a grandparent group enforced group interval' do
      let_it_be(:grandparent_group_settings) { create(:namespace_settings, runner_token_expiration_interval: 4.days.to_i) }
      let_it_be(:grandparent_group) { create(:group, namespace_settings: grandparent_group_settings) }
      let_it_be(:parent_group) { create(:group, parent: grandparent_group) }
      let_it_be(:subgroup) { create(:group, parent: parent_group) }

      subject { subgroup }

      it_behaves_like 'no enforced expiration interval'
      it_behaves_like 'no effective expiration interval'
    end

    context 'when there is a grandparent group enforced subgroup interval' do
      let_it_be(:grandparent_group_settings) { create(:namespace_settings, subgroup_runner_token_expiration_interval: 4.days.to_i) }
      let_it_be(:grandparent_group) { create(:group, namespace_settings: grandparent_group_settings) }
      let_it_be(:parent_group) { create(:group, parent: grandparent_group) }
      let_it_be(:subgroup) { create(:group, parent: parent_group) }

      subject { subgroup }

      it_behaves_like 'enforced expiration interval', enforced_interval: 4.days
      it_behaves_like 'effective expiration interval', effective_interval: 4.days
    end

    # project_runner_token_expiration_interval should not affect the expiration interval, only
    # subgroup_runner_token_expiration_interval should.
    context 'when there is a grandparent group enforced project interval' do
      let_it_be(:grandparent_group_settings) { create(:namespace_settings, project_runner_token_expiration_interval: 4.days.to_i) }
      let_it_be(:grandparent_group) { create(:group, namespace_settings: grandparent_group_settings) }
      let_it_be(:parent_group) { create(:group, parent: grandparent_group) }
      let_it_be(:subgroup) { create(:group, parent: parent_group) }

      subject { subgroup }

      it_behaves_like 'no enforced expiration interval'
      it_behaves_like 'no effective expiration interval'
    end

    context 'when there is a parent group enforced interval overridden by group interval' do
      let_it_be(:parent_group_settings) { create(:namespace_settings, subgroup_runner_token_expiration_interval: 5.days.to_i) }
      let_it_be(:parent_group) { create(:group, namespace_settings: parent_group_settings) }
      let_it_be(:group_settings) { create(:namespace_settings, runner_token_expiration_interval: 4.days.to_i) }
      let_it_be(:subgroup_with_settings) { create(:group, parent: parent_group, namespace_settings: group_settings) }

      subject { subgroup_with_settings }

      it_behaves_like 'enforced expiration interval', enforced_interval: 5.days
      it_behaves_like 'effective expiration interval', effective_interval: 4.days

      it 'has human-readable expiration intervals' do
        expect(subject.enforced_runner_token_expiration_interval_human_readable).to eq('5d')
        expect(subject.effective_runner_token_expiration_interval_human_readable).to eq('4d')
      end
    end

    context 'when site-wide enforced interval overrides group interval' do
      before do
        stub_application_setting(group_runner_token_expiration_interval: 3.days.to_i)
      end

      let_it_be(:group_settings) { create(:namespace_settings, runner_token_expiration_interval: 4.days.to_i) }
      let_it_be(:group_with_settings) { create(:group, namespace_settings: group_settings) }

      subject { group_with_settings }

      it_behaves_like 'enforced expiration interval', enforced_interval: 3.days
      it_behaves_like 'effective expiration interval', effective_interval: 3.days
    end

    context 'when group interval overrides site-wide enforced interval' do
      before do
        stub_application_setting(group_runner_token_expiration_interval: 5.days.to_i)
      end

      let_it_be(:group_settings) { create(:namespace_settings, runner_token_expiration_interval: 4.days.to_i) }
      let_it_be(:group_with_settings) { create(:group, namespace_settings: group_settings) }

      subject { group_with_settings }

      it_behaves_like 'enforced expiration interval', enforced_interval: 5.days
      it_behaves_like 'effective expiration interval', effective_interval: 4.days
    end

    context 'when site-wide enforced interval overrides parent group enforced interval' do
      before do
        stub_application_setting(group_runner_token_expiration_interval: 3.days.to_i)
      end

      let_it_be(:parent_group_settings) { create(:namespace_settings, subgroup_runner_token_expiration_interval: 4.days.to_i) }
      let_it_be(:parent_group) { create(:group, namespace_settings: parent_group_settings) }
      let_it_be(:subgroup) { create(:group, parent: parent_group) }

      subject { subgroup }

      it_behaves_like 'enforced expiration interval', enforced_interval: 3.days
      it_behaves_like 'effective expiration interval', effective_interval: 3.days
    end

    context 'when parent group enforced interval overrides site-wide enforced interval' do
      before do
        stub_application_setting(group_runner_token_expiration_interval: 5.days.to_i)
      end

      let_it_be(:parent_group_settings) { create(:namespace_settings, subgroup_runner_token_expiration_interval: 4.days.to_i) }
      let_it_be(:parent_group) { create(:group, namespace_settings: parent_group_settings) }
      let_it_be(:subgroup) { create(:group, parent: parent_group) }

      subject { subgroup }

      it_behaves_like 'enforced expiration interval', enforced_interval: 4.days
      it_behaves_like 'effective expiration interval', effective_interval: 4.days
    end

    # Unrelated groups should not affect the expiration interval.
    context 'when there is an enforced group interval in an unrelated group' do
      let_it_be(:unrelated_group_settings) { create(:namespace_settings, subgroup_runner_token_expiration_interval: 4.days.to_i) }
      let_it_be(:unrelated_group) { create(:group, namespace_settings: unrelated_group_settings) }
      let_it_be(:group) { create(:group) }

      subject { group }

      it_behaves_like 'no enforced expiration interval'
      it_behaves_like 'no effective expiration interval'
    end

    # Subgroups should not affect the parent group expiration interval.
    context 'when there is an enforced group interval in a subgroup' do
      let_it_be(:subgroup_settings) { create(:namespace_settings, subgroup_runner_token_expiration_interval: 4.days.to_i) }
      let_it_be(:subgroup) { create(:group, parent: group, namespace_settings: subgroup_settings) }
      let_it_be(:group) { create(:group) }

      subject { group }

      it_behaves_like 'no enforced expiration interval'
      it_behaves_like 'no effective expiration interval'
    end
  end

  describe '#work_items_feature_flag_enabled?' do
    it_behaves_like 'checks self and root ancestor feature flag' do
      let(:feature_flag) { :work_items }
      let(:feature_flag_method) { :work_items_feature_flag_enabled? }
    end
  end

  describe '#work_items_beta_feature_flag_enabled?' do
    it_behaves_like 'checks self and root ancestor feature flag' do
      let(:feature_flag) { :work_items_beta }
      let(:feature_flag_method) { :work_items_beta_feature_flag_enabled? }
    end
  end

  describe '#work_items_alpha_feature_flag_enabled?' do
    it_behaves_like 'checks self and root ancestor feature flag' do
      let(:feature_flag) { :work_items_alpha }
      let(:feature_flag_method) { :work_items_alpha_feature_flag_enabled? }
    end
  end

  describe '#work_item_status_feature_available?' do
    subject { group.work_item_status_feature_available? }

    it { is_expected.to be false }
  end

  describe '#continue_indented_text_feature_flag_enabled?' do
    it_behaves_like 'checks self and root ancestor feature flag' do
      let(:feature_flag) { :continue_indented_text }
      let(:feature_flag_method) { :continue_indented_text_feature_flag_enabled? }
    end
  end

  describe '#glql_integration_feature_flag_enabled?' do
    it_behaves_like 'checks self and root ancestor feature flag' do
      let(:feature_flag) { :glql_integration }
      let(:feature_flag_method) { :glql_integration_feature_flag_enabled? }
    end
  end

  describe '#glql_load_on_click_feature_flag_enabled?' do
    it_behaves_like 'checks self and root ancestor feature flag' do
      let(:feature_flag) { :glql_load_on_click }
      let(:feature_flag_method) { :glql_load_on_click_feature_flag_enabled? }
    end
  end

  describe '#supports_lock_on_merge?' do
    it_behaves_like 'checks self and root ancestor feature flag' do
      let(:feature_flag) { :enforce_locked_labels_on_merge }
      let(:feature_flag_method) { :supports_lock_on_merge? }
    end
  end

  describe 'group shares' do
    let!(:sub_group) { create(:group, parent: group) }
    let!(:sub_sub_group) { create(:group, parent: sub_group) }
    let!(:shared_group_1) { create(:group) }
    let!(:shared_group_2) { create(:group) }
    let!(:shared_group_3) { create(:group) }

    before do
      group.shared_with_groups << shared_group_1
      sub_group.shared_with_groups << shared_group_2
      sub_sub_group.shared_with_groups << shared_group_3
    end

    describe '#shared_with_groups_of_ancestors' do
      where(:subject_group, :result) do
        ref(:group)         | []
        ref(:sub_group)     | lazy { [shared_group_1].map(&:id) }
        ref(:sub_sub_group) | lazy { [shared_group_1, shared_group_2].map(&:id) }
      end

      with_them do
        it 'returns correct group shares' do
          expect(subject_group.shared_with_groups_of_ancestors.ids).to match_array(result)
        end
      end
    end

    describe '#shared_with_groups_of_ancestors_and_self' do
      where(:subject_group, :result) do
        ref(:group)         | lazy { [shared_group_1].map(&:id) }
        ref(:sub_group)     | lazy { [shared_group_1, shared_group_2].map(&:id) }
        ref(:sub_sub_group) | lazy { [shared_group_1, shared_group_2, shared_group_3].map(&:id) }
      end

      with_them do
        it 'returns correct group shares' do
          expect(subject_group.shared_with_groups_of_ancestors_and_self.ids).to match_array(result)
        end
      end
    end
  end

  describe '#packages_policy_subject' do
    it 'returns wrapper' do
      expect(group.packages_policy_subject).to be_a(Packages::Policies::Group)
      expect(group.packages_policy_subject.group).to eq(group)
    end
  end

  describe '#gitlab_deploy_token' do
    subject(:gitlab_deploy_token) { group.gitlab_deploy_token }

    context 'when there is a gitlab deploy token associated' do
      let!(:deploy_token) { create(:deploy_token, :group, :gitlab_deploy_token, groups: [group]) }

      it { is_expected.to eq(deploy_token) }
    end

    context 'when there is no a gitlab deploy token associated' do
      it { is_expected.to be_nil }
    end

    context 'when there is a gitlab deploy token associated but is has been revoked' do
      let!(:deploy_token) { create(:deploy_token, :group, :gitlab_deploy_token, :revoked, groups: [group]) }

      it { is_expected.to be_nil }
    end

    context 'when there is a gitlab deploy token associated but it is expired' do
      let!(:deploy_token) { create(:deploy_token, :group, :gitlab_deploy_token, :expired, groups: [group]) }

      it { is_expected.to be_nil }
    end

    context 'when there is a deploy token associated with a different name' do
      let!(:deploy_token) { create(:deploy_token, :group, groups: [group]) }

      it { is_expected.to be_nil }
    end

    context 'when there is a gitlab deploy token associated to a different group' do
      let!(:deploy_token) { create(:deploy_token, :group, :gitlab_deploy_token, groups: [create(:group)]) }

      it { is_expected.to be_nil }
    end
  end

  describe '#usage_quotas_enabled?', feature_category: :consumables_cost_management do
    where(root_group: [true, false])

    with_them do
      before do
        allow(group).to receive(:root?).and_return(root_group)
      end

      it 'returns the expected result' do
        expect(group.usage_quotas_enabled?).to be root_group
      end
    end
  end

  describe '#readme_project' do
    it 'returns groups project containing metadata' do
      readme_project = create(:project, path: Group::README_PROJECT_PATH, namespace: group)
      create(:project, namespace: group)

      expect(group.readme_project).to eq(readme_project)
    end
  end

  describe '#group_readme' do
    it 'returns readme from group readme project' do
      create(:project, :repository, path: Group::README_PROJECT_PATH, namespace: group)

      expect(group.group_readme.name).to eq('README.md')
      expect(group.group_readme.data).to include('testme')
    end

    it 'returns nil if no readme project is present' do
      create(:project, :repository, namespace: group)

      expect(group.group_readme).to be_nil
    end
  end

  describe '#hook_attrs' do
    it 'returns the hook attributes' do
      expect(group.hook_attrs).to eq({
        group_name: group.name,
        group_path: group.path,
        group_id: group.id,
        full_path: group.full_path
      })
    end
  end

  describe '#crm_group' do
    let!(:crm_group) { create(:group) }
    let!(:root_group) { create(:group) }
    let!(:parent_group) { create(:group, parent: root_group) }
    let!(:child_group) { create(:group, parent: parent_group) }

    context 'when the group has a source_group_id' do
      let!(:crm_settings) { create(:crm_settings, group: child_group, source_group: crm_group) }

      it 'returns the source_group' do
        expect(child_group.crm_group).to eq(crm_group)
      end
    end

    context 'when the group does not have a source_group_id but is a root group' do
      it 'returns the root group' do
        expect(root_group.crm_group).to eq(root_group)
      end
    end

    context 'when the group has no source_group_id and is not a root group' do
      context 'when a parent group has a source_group_id' do
        let!(:crm_settings) { create(:crm_settings, group: parent_group, source_group: crm_group) }

        it 'traverses up the hierarchy and returns the first group with a source_group_id' do
          expect(child_group.crm_group).to eq(crm_group)
        end
      end

      it 'returns the root group if no groups in the hierarchy have a source_group_id' do
        expect(child_group.crm_group).to eq(root_group)
      end
    end
  end

  describe '#has_issues_with_contacts?' do
    context 'when group has no issues with contacts' do
      it 'returns false' do
        expect(group.has_issues_with_contacts?).to be_falsey
      end
    end

    context 'when group has issues with contacts' do
      let!(:issue) { create(:issue, project: create(:project, group: group)) }
      let!(:contact) { create(:contact, group: group) }
      let!(:issue_contact) { create(:issue_customer_relations_contact, issue: issue, contact: contact) }

      it 'returns true' do
        expect(group.has_issues_with_contacts?).to be_truthy
      end
    end

    context 'when a subgroup has issues with contacts' do
      let!(:subgroup) { create(:group, parent: group) }
      let!(:issue) { create(:issue, project: create(:project, group: subgroup)) }
      let!(:contact) { create(:contact, group: group) }
      let!(:issue_contact) { create(:issue_customer_relations_contact, issue: issue, contact: contact) }

      it 'returns true' do
        expect(group.has_issues_with_contacts?).to be_truthy
      end
    end
  end

  describe '#cluster_agents' do
    let_it_be(:other_group) { create(:group) }
    let_it_be(:other_project) { create(:project, namespace: other_group) }

    let_it_be(:root_group) { create(:group) }
    let_it_be(:subgroup) { create(:group, parent: root_group) }
    let_it_be(:project_in_group) { create(:project, namespace: root_group) }
    let_it_be(:project_in_subgroup) { create(:project, namespace: subgroup) }

    let_it_be(:cluster_agent_for_other_project) { create(:cluster_agent, project: other_project) }
    let_it_be(:cluster_agent_for_project) { create(:cluster_agent, project: project_in_group) }
    let_it_be(:cluster_agent_for_project_in_subgroup) { create(:cluster_agent, project: project_in_subgroup) }

    subject { root_group.cluster_agents }

    it { is_expected.to contain_exactly(cluster_agent_for_project, cluster_agent_for_project_in_subgroup) }
  end

  describe '#active?' do
    let_it_be(:active_group) { create(:group) }
    let_it_be(:inactive_group) { create(:group_with_deletion_schedule) }

    context 'when group is active' do
      specify { expect(active_group.active?).to be(true) }
    end

    context 'when group is inactive' do
      specify { expect(inactive_group.active?).to be(false) }
    end

    context 'when ancestor is active' do
      let_it_be(:group_with_active_ancestor) { create(:group, parent: active_group) }

      specify { expect(group_with_active_ancestor.active?).to be(true) }
    end

    context 'when ancestor is inactive' do
      let_it_be(:group_with_inactive_ancestor) { create(:group, parent: inactive_group) }

      specify { expect(group_with_inactive_ancestor.active?).to be(false) }
    end
  end
end