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path: root/spec/services/clusters/parse_cluster_applications_artifact_service_spec.rb
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# frozen_string_literal: true

require 'spec_helper'

RSpec.describe Clusters::ParseClusterApplicationsArtifactService do
  let_it_be(:project) { create(:project) }
  let_it_be(:user) { create(:user) }

  before do
    project.add_maintainer(user)
  end

  describe 'RELEASE_NAMES' do
    it 'is included in Cluster application names', :aggregate_failures do
      described_class::RELEASE_NAMES.each do |release_name|
        expect(Clusters::Cluster::APPLICATIONS).to include(release_name)
      end
    end
  end

  describe '.new' do
    let(:job) { build(:ci_build) }

    it 'sets the project and current user', :aggregate_failures do
      service = described_class.new(job, user)

      expect(service.project).to eq(job.project)
      expect(service.current_user).to eq(user)
    end
  end

  describe '#execute' do
    let_it_be(:cluster, reload: true) { create(:cluster, projects: [project]) }
    let_it_be(:deployment, reload: true) { create(:deployment, cluster: cluster) }

    let(:job) { deployment.deployable }
    let(:artifact) { create(:ci_job_artifact, :cluster_applications, job: job) }

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

      it 'does not call Gitlab::Kubernetes::Helm::Parsers::ListV2 and returns success immediately' do
        expect(Gitlab::Kubernetes::Helm::Parsers::ListV2).not_to receive(:new)

        result = described_class.new(job, user).execute(artifact)

        expect(result[:status]).to eq(:success)
      end
    end

    context 'when cluster_applications_artifact feature flag is enabled for project' do
      before do
        stub_feature_flags(cluster_applications_artifact: job.project)
      end

      it 'calls Gitlab::Kubernetes::Helm::Parsers::ListV2' do
        expect(Gitlab::Kubernetes::Helm::Parsers::ListV2).to receive(:new).and_call_original

        result = described_class.new(job, user).execute(artifact)

        expect(result[:status]).to eq(:success)
      end

      context 'artifact is not of cluster_applications type' do
        let(:artifact) { create(:ci_job_artifact, :archive) }
        let(:job) { artifact.job }

        it 'raise ArgumentError' do
          expect do
            described_class.new(job, user).execute(artifact)
          end.to raise_error(ArgumentError, 'Artifact is not cluster_applications file type')
        end
      end

      context 'artifact exceeds acceptable size' do
        it 'returns an error' do
          stub_const("#{described_class}::MAX_ACCEPTABLE_ARTIFACT_SIZE", 1.byte)

          result = described_class.new(job, user).execute(artifact)

          expect(result[:status]).to eq(:error)
          expect(result[:message]).to eq('Cluster_applications artifact too big. Maximum allowable size: 1 Byte')
        end
      end

      context 'job has no deployment' do
        let(:job) { build(:ci_build) }

        it 'returns an error' do
          result = described_class.new(job, user).execute(artifact)

          expect(result[:status]).to eq(:error)
          expect(result[:message]).to eq('No deployment found for this job')
        end
      end

      context 'job has no deployment cluster' do
        let(:deployment) { create(:deployment) }
        let(:job) { deployment.deployable }

        it 'returns an error' do
          result = described_class.new(job, user).execute(artifact)

          expect(result[:status]).to eq(:error)
          expect(result[:message]).to eq('No deployment cluster found for this job')
        end
      end

      context 'job has deployment cluster' do
        context 'current user does not have access to deployment cluster' do
          let(:other_user) { create(:user) }

          it 'returns an error' do
            result = described_class.new(job, other_user).execute(artifact)

            expect(result[:status]).to eq(:error)
            expect(result[:message]).to eq('No deployment cluster found for this job')
          end
        end

        Clusters::ParseClusterApplicationsArtifactService::RELEASE_NAMES.each do |release_name|
          context release_name do
            include_examples 'parse cluster applications artifact', release_name
          end
        end
      end
    end
  end
end