# frozen_string_literal: true

require 'spec_helper'

RSpec.describe API::Ci::Pipelines do
  let_it_be(:user) { create(:user) }
  let_it_be(:non_member) { create(:user) }
  let_it_be(:project2) { create(:project, creator: user) }

  # We need to reload as the shared example 'pipelines visibility table' is changing project
  let_it_be(:project, reload: true) do
    create(:project, :repository, creator: user)
  end

  let_it_be(:pipeline) do
    create(:ci_empty_pipeline, project: project, sha: project.commit.id,
                               ref: project.default_branch, user: user)
  end

  before do
    project.add_maintainer(user)
  end

  describe 'GET /projects/:id/pipelines ' do
    it_behaves_like 'pipelines visibility table'

    context 'authorized user' do
      it 'returns project pipelines' do
        get api("/projects/#{project.id}/pipelines", user)

        expect(response).to have_gitlab_http_status(:ok)
        expect(response).to include_pagination_headers
        expect(json_response).to be_an Array
        expect(json_response.first['sha']).to match(/\A\h{40}\z/)
        expect(json_response.first['id']).to eq pipeline.id
        expect(json_response.first['web_url']).to be_present
        expect(json_response.first.keys).to contain_exactly(*%w[id sha ref status web_url created_at updated_at])
      end

      context 'when parameter is passed' do
        %w[running pending].each do |target|
          context "when scope is #{target}" do
            before do
              create(:ci_pipeline, project: project, status: target)
            end

            it 'returns matched pipelines' do
              get api("/projects/#{project.id}/pipelines", user), params: { scope: target }

              expect(response).to have_gitlab_http_status(:ok)
              expect(response).to include_pagination_headers
              expect(json_response).not_to be_empty
              json_response.each { |r| expect(r['status']).to eq(target) }
            end
          end
        end

        context 'when scope is finished' do
          before do
            create(:ci_pipeline, project: project, status: 'success')
            create(:ci_pipeline, project: project, status: 'failed')
            create(:ci_pipeline, project: project, status: 'canceled')
          end

          it 'returns matched pipelines' do
            get api("/projects/#{project.id}/pipelines", user), params: { scope: 'finished' }

            expect(response).to have_gitlab_http_status(:ok)
            expect(response).to include_pagination_headers
            expect(json_response).not_to be_empty
            json_response.each { |r| expect(r['status']).to be_in(%w[success failed canceled]) }
          end
        end

        context 'when scope is branches or tags' do
          let_it_be(:pipeline_branch) { create(:ci_pipeline, project: project) }
          let_it_be(:pipeline_tag) { create(:ci_pipeline, project: project, ref: 'v1.0.0', tag: true) }

          context 'when scope is branches' do
            it 'returns matched pipelines' do
              get api("/projects/#{project.id}/pipelines", user), params: { scope: 'branches' }

              expect(response).to have_gitlab_http_status(:ok)
              expect(response).to include_pagination_headers
              expect(json_response).not_to be_empty
              expect(json_response.last['id']).to eq(pipeline_branch.id)
            end
          end

          context 'when scope is tags' do
            it 'returns matched pipelines' do
              get api("/projects/#{project.id}/pipelines", user), params: { scope: 'tags' }

              expect(response).to have_gitlab_http_status(:ok)
              expect(response).to include_pagination_headers
              expect(json_response).not_to be_empty
              expect(json_response.last['id']).to eq(pipeline_tag.id)
            end
          end
        end

        context 'when scope is invalid' do
          it 'returns bad_request' do
            get api("/projects/#{project.id}/pipelines", user), params: { scope: 'invalid-scope' }

            expect(response).to have_gitlab_http_status(:bad_request)
          end
        end

        Ci::HasStatus::AVAILABLE_STATUSES.each do |target|
          context "when status is #{target}" do
            before do
              create(:ci_pipeline, project: project, status: target)
              exception_status = Ci::HasStatus::AVAILABLE_STATUSES - [target]
              create(:ci_pipeline, project: project, status: exception_status.sample)
            end

            it 'returns matched pipelines' do
              get api("/projects/#{project.id}/pipelines", user), params: { status: target }

              expect(response).to have_gitlab_http_status(:ok)
              expect(response).to include_pagination_headers
              expect(json_response).not_to be_empty
              json_response.each { |r| expect(r['status']).to eq(target) }
            end
          end
        end

        context 'when status is invalid' do
          it 'returns bad_request' do
            get api("/projects/#{project.id}/pipelines", user), params: { status: 'invalid-status' }

            expect(response).to have_gitlab_http_status(:bad_request)
          end
        end

        context 'when ref is specified' do
          before do
            create(:ci_pipeline, project: project)
          end

          context 'when ref exists' do
            it 'returns matched pipelines' do
              get api("/projects/#{project.id}/pipelines", user), params: { ref: 'master' }

              expect(response).to have_gitlab_http_status(:ok)
              expect(response).to include_pagination_headers
              expect(json_response).not_to be_empty
              json_response.each { |r| expect(r['ref']).to eq('master') }
            end
          end

          context 'when ref does not exist' do
            it 'returns empty' do
              get api("/projects/#{project.id}/pipelines", user), params: { ref: 'invalid-ref' }

              expect(response).to have_gitlab_http_status(:ok)
              expect(response).to include_pagination_headers
              expect(json_response).to be_empty
            end
          end
        end

        context 'when name is specified' do
          let_it_be(:pipeline) { create(:ci_pipeline, project: project, user: user) }

          context 'when name exists' do
            it 'returns matched pipelines' do
              get api("/projects/#{project.id}/pipelines", user), params: { name: user.name }

              expect(response).to have_gitlab_http_status(:ok)
              expect(response).to include_pagination_headers
              expect(json_response.first['id']).to eq(pipeline.id)
            end
          end

          context 'when name does not exist' do
            it 'returns empty' do
              get api("/projects/#{project.id}/pipelines", user), params: { name: 'invalid-name' }

              expect(response).to have_gitlab_http_status(:ok)
              expect(response).to include_pagination_headers
              expect(json_response).to be_empty
            end
          end
        end

        context 'when username is specified' do
          let_it_be(:pipeline) { create(:ci_pipeline, project: project, user: user) }

          context 'when username exists' do
            it 'returns matched pipelines' do
              get api("/projects/#{project.id}/pipelines", user), params: { username: user.username }

              expect(response).to have_gitlab_http_status(:ok)
              expect(response).to include_pagination_headers
              expect(json_response.first['id']).to eq(pipeline.id)
            end
          end

          context 'when username does not exist' do
            it 'returns empty' do
              get api("/projects/#{project.id}/pipelines", user), params: { username: 'invalid-username' }

              expect(response).to have_gitlab_http_status(:ok)
              expect(response).to include_pagination_headers
              expect(json_response).to be_empty
            end
          end
        end

        context 'when yaml_errors is specified' do
          let_it_be(:pipeline1) { create(:ci_pipeline, project: project, yaml_errors: 'Syntax error') }
          let_it_be(:pipeline2) { create(:ci_pipeline, project: project) }

          context 'when yaml_errors is true' do
            it 'returns matched pipelines' do
              get api("/projects/#{project.id}/pipelines", user), params: { yaml_errors: true }

              expect(response).to have_gitlab_http_status(:ok)
              expect(response).to include_pagination_headers
              expect(json_response.first['id']).to eq(pipeline1.id)
            end
          end

          context 'when yaml_errors is false' do
            it 'returns matched pipelines' do
              get api("/projects/#{project.id}/pipelines", user), params: { yaml_errors: false }

              expect(response).to have_gitlab_http_status(:ok)
              expect(response).to include_pagination_headers
              expect(json_response.first['id']).to eq(pipeline2.id)
            end
          end

          context 'when yaml_errors is invalid' do
            it 'returns bad_request' do
              get api("/projects/#{project.id}/pipelines", user), params: { yaml_errors: 'invalid-yaml_errors' }

              expect(response).to have_gitlab_http_status(:bad_request)
            end
          end
        end

        context 'when updated_at filters are specified' do
          let_it_be(:pipeline1) { create(:ci_pipeline, project: project, updated_at: 2.days.ago) }
          let_it_be(:pipeline2) { create(:ci_pipeline, project: project, updated_at: 4.days.ago) }
          let_it_be(:pipeline3) { create(:ci_pipeline, project: project, updated_at: 1.hour.ago) }

          it 'returns pipelines with last update date in specified datetime range' do
            get api("/projects/#{project.id}/pipelines", user), params: { updated_before: 1.day.ago, updated_after: 3.days.ago }

            expect(response).to have_gitlab_http_status(:ok)
            expect(response).to include_pagination_headers
            expect(json_response.first['id']).to eq(pipeline1.id)
          end
        end

        context 'when order_by and sort are specified' do
          context 'when order_by user_id' do
            before do
              create_list(:user, 3).each do |some_user|
                create(:ci_pipeline, project: project, user: some_user)
              end
            end

            context 'when sort parameter is valid' do
              it 'sorts as user_id: :desc' do
                get api("/projects/#{project.id}/pipelines", user), params: { order_by: 'user_id', sort: 'desc' }

                expect(response).to have_gitlab_http_status(:ok)
                expect(response).to include_pagination_headers
                expect(json_response).not_to be_empty

                pipeline_ids = Ci::Pipeline.all.order(user_id: :desc).pluck(:id)
                expect(json_response.map { |r| r['id'] }).to eq(pipeline_ids)
              end
            end

            context 'when sort parameter is invalid' do
              it 'returns bad_request' do
                get api("/projects/#{project.id}/pipelines", user), params: { order_by: 'user_id', sort: 'invalid_sort' }

                expect(response).to have_gitlab_http_status(:bad_request)
              end
            end
          end

          context 'when order_by is invalid' do
            it 'returns bad_request' do
              get api("/projects/#{project.id}/pipelines", user), params: { order_by: 'lock_version', sort: 'asc' }

              expect(response).to have_gitlab_http_status(:bad_request)
            end
          end
        end
      end
    end

    context 'unauthorized user' do
      it 'does not return project pipelines' do
        get api("/projects/#{project.id}/pipelines", non_member)

        expect(response).to have_gitlab_http_status(:not_found)
        expect(json_response['message']).to eq '404 Project Not Found'
        expect(json_response).not_to be_an Array
      end
    end
  end

  describe 'GET /projects/:id/pipelines/:pipeline_id/jobs' do
    let(:query) { {} }
    let(:api_user) { user }
    let_it_be(:job) do
      create(:ci_build, :success, pipeline: pipeline,
                                  artifacts_expire_at: 1.day.since)
    end

    let(:guest) { create(:project_member, :guest, project: project).user }

    before do |example|
      unless example.metadata[:skip_before_request]
        project.update!(public_builds: false)
        get api("/projects/#{project.id}/pipelines/#{pipeline.id}/jobs", api_user), params: query
      end
    end

    context 'authorized user' do
      it 'returns pipeline jobs' do
        expect(response).to have_gitlab_http_status(:ok)
        expect(response).to include_pagination_headers
        expect(json_response).to be_an Array
      end

      it 'returns correct values' do
        expect(json_response).not_to be_empty
        expect(json_response.first['commit']['id']).to eq project.commit.id
        expect(Time.parse(json_response.first['artifacts_expire_at'])).to be_like_time(job.artifacts_expire_at)
        expect(json_response.first['artifacts_file']).to be_nil
        expect(json_response.first['artifacts']).to be_an Array
        expect(json_response.first['artifacts']).to be_empty
      end

      it_behaves_like 'a job with artifacts and trace' do
        let(:api_endpoint) { "/projects/#{project.id}/pipelines/#{pipeline.id}/jobs" }
      end

      it 'returns pipeline data' do
        json_job = json_response.first

        expect(json_job['pipeline']).not_to be_empty
        expect(json_job['pipeline']['id']).to eq job.pipeline.id
        expect(json_job['pipeline']['ref']).to eq job.pipeline.ref
        expect(json_job['pipeline']['sha']).to eq job.pipeline.sha
        expect(json_job['pipeline']['status']).to eq job.pipeline.status
      end

      context 'filter jobs with one scope element' do
        let(:query) { { 'scope' => 'pending' } }

        it do
          expect(response).to have_gitlab_http_status(:ok)
          expect(json_response).to be_an Array
        end
      end

      context 'filter jobs with hash' do
        let(:query) { { scope: { hello: 'pending', world: 'running' } } }

        it { expect(response).to have_gitlab_http_status(:bad_request) }
      end

      context 'filter jobs with array of scope elements' do
        let(:query) { { scope: %w(pending running) } }

        it do
          expect(response).to have_gitlab_http_status(:ok)
          expect(json_response).to be_an Array
        end
      end

      context 'respond 400 when scope contains invalid state' do
        let(:query) { { scope: %w(unknown running) } }

        it { expect(response).to have_gitlab_http_status(:bad_request) }
      end

      context 'jobs in different pipelines' do
        let!(:pipeline2) { create(:ci_empty_pipeline, project: project) }
        let!(:job2) { create(:ci_build, pipeline: pipeline2) }

        it 'excludes jobs from other pipelines' do
          json_response.each { |job| expect(job['pipeline']['id']).to eq(pipeline.id) }
        end
      end

      it 'avoids N+1 queries' do
        control_count = ActiveRecord::QueryRecorder.new(skip_cached: false) do
          get api("/projects/#{project.id}/pipelines/#{pipeline.id}/jobs", api_user), params: query
        end.count

        create_list(:ci_build, 3, :trace_artifact, :artifacts, :test_reports, pipeline: pipeline)

        expect do
          get api("/projects/#{project.id}/pipelines/#{pipeline.id}/jobs", api_user), params: query
        end.not_to exceed_all_query_limit(control_count)
      end
    end

    context 'no pipeline is found' do
      it 'does not return jobs' do
        get api("/projects/#{project2.id}/pipelines/#{pipeline.id}/jobs", user)

        expect(json_response['message']).to eq '404 Project Not Found'
        expect(response).to have_gitlab_http_status(:not_found)
      end
    end

    context 'unauthorized user' do
      context 'when user is not logged in' do
        let(:api_user) { nil }

        it 'does not return jobs' do
          expect(json_response['message']).to eq '404 Project Not Found'
          expect(response).to have_gitlab_http_status(:not_found)
        end
      end

      context 'when user is guest' do
        let(:guest) { create(:project_member, :guest, project: project).user }
        let(:api_user) { guest }

        it 'does not return jobs' do
          expect(response).to have_gitlab_http_status(:forbidden)
        end
      end
    end
  end

  describe 'GET /projects/:id/pipelines/:pipeline_id/bridges' do
    let_it_be(:bridge) { create(:ci_bridge, pipeline: pipeline) }
    let(:downstream_pipeline) { create(:ci_pipeline) }

    let!(:pipeline_source) do
      create(:ci_sources_pipeline,
             source_pipeline: pipeline,
             source_project: project,
             source_job: bridge,
             pipeline: downstream_pipeline,
             project: downstream_pipeline.project)
    end

    let(:query) { {} }
    let(:api_user) { user }

    before do |example|
      unless example.metadata[:skip_before_request]
        project.update!(public_builds: false)
        get api("/projects/#{project.id}/pipelines/#{pipeline.id}/bridges", api_user), params: query
      end
    end

    context 'authorized user' do
      it 'returns pipeline bridges' do
        expect(response).to have_gitlab_http_status(:ok)
        expect(response).to include_pagination_headers
        expect(json_response).to be_an Array
      end

      it 'returns correct values' do
        expect(json_response).not_to be_empty
        expect(json_response.first['commit']['id']).to eq project.commit.id
        expect(json_response.first['id']).to eq bridge.id
        expect(json_response.first['name']).to eq bridge.name
        expect(json_response.first['stage']).to eq bridge.stage
      end

      it 'returns pipeline data' do
        json_bridge = json_response.first

        expect(json_bridge['pipeline']).not_to be_empty
        expect(json_bridge['pipeline']['id']).to eq bridge.pipeline.id
        expect(json_bridge['pipeline']['ref']).to eq bridge.pipeline.ref
        expect(json_bridge['pipeline']['sha']).to eq bridge.pipeline.sha
        expect(json_bridge['pipeline']['status']).to eq bridge.pipeline.status
      end

      it 'returns downstream pipeline data' do
        json_bridge = json_response.first

        expect(json_bridge['downstream_pipeline']).not_to be_empty
        expect(json_bridge['downstream_pipeline']['id']).to eq downstream_pipeline.id
        expect(json_bridge['downstream_pipeline']['ref']).to eq downstream_pipeline.ref
        expect(json_bridge['downstream_pipeline']['sha']).to eq downstream_pipeline.sha
        expect(json_bridge['downstream_pipeline']['status']).to eq downstream_pipeline.status
      end

      context 'filter bridges' do
        before_all do
          create_bridge(pipeline, :pending)
          create_bridge(pipeline, :running)
        end

        context 'with one scope element' do
          let(:query) { { 'scope' => 'pending' } }

          it :skip_before_request do
            get api("/projects/#{project.id}/pipelines/#{pipeline.id}/bridges", api_user), params: query

            expect(response).to have_gitlab_http_status(:ok)
            expect(json_response).to be_an Array
            expect(json_response.count).to eq 1
            expect(json_response.first["status"]).to eq "pending"
          end
        end

        context 'with array of scope elements' do
          let(:query) { { scope: %w(pending running) } }

          it :skip_before_request do
            get api("/projects/#{project.id}/pipelines/#{pipeline.id}/bridges", api_user), params: query

            expect(response).to have_gitlab_http_status(:ok)
            expect(json_response).to be_an Array
            expect(json_response.count).to eq 2
            json_response.each { |r| expect(%w(pending running).include?(r['status'])).to be true }
          end
        end
      end

      context 'respond 400 when scope contains invalid state' do
        context 'in an array' do
          let(:query) { { scope: %w(unknown running) } }

          it { expect(response).to have_gitlab_http_status(:bad_request) }
        end

        context 'in a hash' do
          let(:query) { { scope: { unknown: true } } }

          it { expect(response).to have_gitlab_http_status(:bad_request) }
        end

        context 'in a string' do
          let(:query) { { scope: "unknown" } }

          it { expect(response).to have_gitlab_http_status(:bad_request) }
        end
      end

      context 'bridges in different pipelines' do
        let!(:pipeline2) { create(:ci_empty_pipeline, project: project) }
        let!(:bridge2) { create(:ci_bridge, pipeline: pipeline2) }

        it 'excludes bridges from other pipelines' do
          json_response.each { |bridge| expect(bridge['pipeline']['id']).to eq(pipeline.id) }
        end
      end

      it 'avoids N+1 queries' do
        control_count = ActiveRecord::QueryRecorder.new(skip_cached: false) do
          get api("/projects/#{project.id}/pipelines/#{pipeline.id}/bridges", api_user), params: query
        end.count

        3.times { create_bridge(pipeline) }

        expect do
          get api("/projects/#{project.id}/pipelines/#{pipeline.id}/bridges", api_user), params: query
        end.not_to exceed_all_query_limit(control_count)
      end
    end

    context 'no pipeline is found' do
      it 'does not return bridges' do
        get api("/projects/#{project2.id}/pipelines/#{pipeline.id}/bridges", user)

        expect(json_response['message']).to eq '404 Project Not Found'
        expect(response).to have_gitlab_http_status(:not_found)
      end
    end

    context 'unauthorized user' do
      context 'when user is not logged in' do
        let(:api_user) { nil }

        it 'does not return bridges' do
          expect(json_response['message']).to eq '404 Project Not Found'
          expect(response).to have_gitlab_http_status(:not_found)
        end
      end

      context 'when user is guest' do
        let(:api_user) { guest }
        let(:guest) { create(:project_member, :guest, project: project).user }

        it 'does not return bridges' do
          expect(response).to have_gitlab_http_status(:forbidden)
        end
      end

      context 'when user has no read_build access for project' do
        before do
          project.add_guest(api_user)
        end

        it 'does not return bridges' do
          get api("/projects/#{project.id}/pipelines/#{pipeline.id}/bridges", api_user)
          expect(response).to have_gitlab_http_status(:forbidden)
        end
      end
    end

    def create_bridge(pipeline, status = :created)
      create(:ci_bridge, status: status, pipeline: pipeline).tap do |bridge|
        downstream_pipeline = create(:ci_pipeline)
        create(:ci_sources_pipeline,
              source_pipeline: pipeline,
              source_project: pipeline.project,
              source_job: bridge,
              pipeline: downstream_pipeline,
              project: downstream_pipeline.project)
      end
    end
  end

  describe 'POST /projects/:id/pipeline ' do
    def expect_variables(variables, expected_variables)
      variables.each_with_index do |variable, index|
        expected_variable = expected_variables[index]

        expect(variable.key).to eq(expected_variable['key'])
        expect(variable.value).to eq(expected_variable['value'])
        expect(variable.variable_type).to eq(expected_variable['variable_type'])
      end
    end

    context 'authorized user' do
      context 'with gitlab-ci.yml' do
        before do
          stub_ci_pipeline_to_return_yaml_file
        end

        it 'creates and returns a new pipeline' do
          expect do
            post api("/projects/#{project.id}/pipeline", user), params: { ref: project.default_branch }
          end.to change { project.ci_pipelines.count }.by(1)

          expect(response).to have_gitlab_http_status(:created)
          expect(json_response).to be_a Hash
          expect(json_response['sha']).to eq project.commit.id
        end

        context 'variables given' do
          let(:variables) { [{ 'variable_type' => 'file', 'key' => 'UPLOAD_TO_S3', 'value' => 'true' }] }

          it 'creates and returns a new pipeline using the given variables' do
            expect do
              post api("/projects/#{project.id}/pipeline", user), params: { ref: project.default_branch, variables: variables }
            end.to change { project.ci_pipelines.count }.by(1)
            expect_variables(project.ci_pipelines.last.variables, variables)

            expect(response).to have_gitlab_http_status(:created)
            expect(json_response).to be_a Hash
            expect(json_response['sha']).to eq project.commit.id
            expect(json_response).not_to have_key('variables')
          end
        end

        describe 'using variables conditions' do
          let(:variables) { [{ 'variable_type' => 'env_var', 'key' => 'STAGING', 'value' => 'true' }] }

          before do
            config = YAML.dump(test: { script: 'test', only: { variables: ['$STAGING'] } })
            stub_ci_pipeline_yaml_file(config)
          end

          it 'creates and returns a new pipeline using the given variables' do
            expect do
              post api("/projects/#{project.id}/pipeline", user), params: { ref: project.default_branch, variables: variables }
            end.to change { project.ci_pipelines.count }.by(1)
            expect_variables(project.ci_pipelines.last.variables, variables)

            expect(response).to have_gitlab_http_status(:created)
            expect(json_response).to be_a Hash
            expect(json_response['sha']).to eq project.commit.id
            expect(json_response).not_to have_key('variables')
          end

          context 'condition unmatch' do
            let(:variables) { [{ 'key' => 'STAGING', 'value' => 'false' }] }

            it "doesn't create a job" do
              expect do
                post api("/projects/#{project.id}/pipeline", user), params: { ref: project.default_branch }
              end.not_to change { project.ci_pipelines.count }

              expect(response).to have_gitlab_http_status(:bad_request)
            end
          end
        end

        it 'fails when using an invalid ref' do
          post api("/projects/#{project.id}/pipeline", user), params: { ref: 'invalid_ref' }

          expect(response).to have_gitlab_http_status(:bad_request)
          expect(json_response['message']['base'].first).to eq 'Reference not found'
          expect(json_response).not_to be_an Array
        end
      end

      context 'without gitlab-ci.yml' do
        context 'without auto devops enabled' do
          before do
            project.update!(auto_devops_attributes: { enabled: false })
          end

          it 'fails to create pipeline' do
            post api("/projects/#{project.id}/pipeline", user), params: { ref: project.default_branch }

            expect(response).to have_gitlab_http_status(:bad_request)
            expect(json_response['message']['base'].first).to eq 'Missing CI config file'
            expect(json_response).not_to be_an Array
          end
        end
      end
    end

    context 'unauthorized user' do
      it 'does not create pipeline' do
        post api("/projects/#{project.id}/pipeline", non_member), params: { ref: project.default_branch }

        expect(response).to have_gitlab_http_status(:not_found)
        expect(json_response['message']).to eq '404 Project Not Found'
        expect(json_response).not_to be_an Array
      end
    end
  end

  describe 'GET /projects/:id/pipelines/:pipeline_id' do
    it_behaves_like 'pipelines visibility table' do
      let(:pipelines_api_path) do
        "/projects/#{project.id}/pipelines/#{pipeline.id}"
      end

      let(:api_response) { response_status == 200 ? response : json_response }
      let(:response_200) { match_response_schema('public_api/v4/pipeline/detail') }
    end

    context 'authorized user' do
      it 'exposes known attributes' do
        get api("/projects/#{project.id}/pipelines/#{pipeline.id}", user)

        expect(response).to have_gitlab_http_status(:ok)
        expect(response).to match_response_schema('public_api/v4/pipeline/detail')
      end

      it 'returns project pipeline' do
        get api("/projects/#{project.id}/pipelines/#{pipeline.id}", user)

        expect(response).to have_gitlab_http_status(:ok)
        expect(json_response['sha']).to match(/\A\h{40}\z/)
      end

      it 'returns 404 when it does not exist' do
        get api("/projects/#{project.id}/pipelines/#{non_existing_record_id}", user)

        expect(response).to have_gitlab_http_status(:not_found)
        expect(json_response['message']).to eq '404 Not found'
        expect(json_response['id']).to be nil
      end

      context 'with coverage' do
        before do
          create(:ci_build, coverage: 30, pipeline: pipeline)
        end

        it 'exposes the coverage' do
          get api("/projects/#{project.id}/pipelines/#{pipeline.id}", user)

          expect(json_response["coverage"].to_i).to eq(30)
        end
      end
    end

    context 'unauthorized user' do
      it 'does not return a project pipeline' do
        get api("/projects/#{project.id}/pipelines/#{pipeline.id}", non_member)

        expect(response).to have_gitlab_http_status(:not_found)
        expect(json_response['message']).to eq '404 Project Not Found'
        expect(json_response['id']).to be nil
      end
    end

    context 'when pipeline is a dangling pipeline' do
      let(:dangling_source) { Enums::Ci::Pipeline.dangling_sources.each_value.first }

      let(:dangling_pipeline) do
        create(:ci_pipeline, source: dangling_source, project: project)
      end

      it 'returns the specified pipeline' do
        get api("/projects/#{project.id}/pipelines/#{dangling_pipeline.id}", user)

        expect(response).to have_gitlab_http_status(:ok)
        expect(json_response['sha']).to eq(dangling_pipeline.sha)
      end
    end
  end

  describe 'GET /projects/:id/pipelines/latest' do
    context 'authorized user' do
      let(:second_branch) { project.repository.branches[2] }

      let!(:second_pipeline) do
        create(:ci_empty_pipeline, project: project, sha: second_branch.target,
                                   ref: second_branch.name, user: user)
      end

      before do
        create(:ci_empty_pipeline, project: project, sha: project.commit.parent.id,
                                   ref: project.default_branch, user: user)
      end

      context 'default repository branch' do
        it 'gets the latest pipleine' do
          get api("/projects/#{project.id}/pipelines/latest", user)

          expect(response).to have_gitlab_http_status(:ok)
          expect(response).to match_response_schema('public_api/v4/pipeline/detail')
          expect(json_response['ref']).to eq(project.default_branch)
          expect(json_response['sha']).to eq(project.commit.id)
        end
      end

      context 'ref parameter' do
        it 'gets the latest pipleine' do
          get api("/projects/#{project.id}/pipelines/latest", user), params: { ref: second_branch.name }

          expect(response).to have_gitlab_http_status(:ok)
          expect(response).to match_response_schema('public_api/v4/pipeline/detail')
          expect(json_response['ref']).to eq(second_branch.name)
          expect(json_response['sha']).to eq(second_branch.target)
        end
      end
    end

    context 'unauthorized user' do
      it 'does not return a project pipeline' do
        get api("/projects/#{project.id}/pipelines/#{pipeline.id}", non_member)

        expect(response).to have_gitlab_http_status(:not_found)
        expect(json_response['message']).to eq '404 Project Not Found'
        expect(json_response['id']).to be nil
      end
    end
  end

  describe 'GET /projects/:id/pipelines/:pipeline_id/variables' do
    subject { get api("/projects/#{project.id}/pipelines/#{pipeline.id}/variables", api_user) }

    let(:api_user) { user }

    context 'user is a mantainer' do
      it 'returns pipeline variables empty' do
        subject

        expect(response).to have_gitlab_http_status(:ok)
        expect(json_response).to be_empty
      end

      context 'with variables' do
        let!(:variable) { create(:ci_pipeline_variable, pipeline: pipeline, key: 'foo', value: 'bar') }

        it 'returns pipeline variables' do
          subject

          expect(response).to have_gitlab_http_status(:ok)
          expect(json_response).to contain_exactly({ "variable_type" => "env_var", "key" => "foo", "value" => "bar" })
        end
      end
    end

    context 'user is a developer' do
      let(:pipeline_owner_user) { create(:user) }
      let(:pipeline) { create(:ci_empty_pipeline, project: project, user: pipeline_owner_user) }

      before do
        project.add_developer(api_user)
      end

      context 'pipeline created by the developer user' do
        let(:api_user) { pipeline_owner_user }
        let!(:variable) { create(:ci_pipeline_variable, pipeline: pipeline, key: 'foo', value: 'bar') }

        it 'returns pipeline variables' do
          subject

          expect(response).to have_gitlab_http_status(:ok)
          expect(json_response).to contain_exactly({ "variable_type" => "env_var", "key" => "foo", "value" => "bar" })
        end
      end

      context 'pipeline created is not created by the developer user' do
        let(:api_user) { create(:user) }

        it 'does not return pipeline variables' do
          subject

          expect(response).to have_gitlab_http_status(:forbidden)
        end
      end
    end

    context 'user is not a project member' do
      it 'does not return pipeline variables' do
        get api("/projects/#{project.id}/pipelines/#{pipeline.id}/variables", non_member)

        expect(response).to have_gitlab_http_status(:not_found)
        expect(json_response['message']).to eq '404 Project Not Found'
      end
    end
  end

  describe 'DELETE /projects/:id/pipelines/:pipeline_id' do
    context 'authorized user' do
      let(:owner) { project.owner }

      it 'destroys the pipeline' do
        delete api("/projects/#{project.id}/pipelines/#{pipeline.id}", owner)

        expect(response).to have_gitlab_http_status(:no_content)
        expect { pipeline.reload }.to raise_error(ActiveRecord::RecordNotFound)
      end

      it 'returns 404 when it does not exist' do
        delete api("/projects/#{project.id}/pipelines/#{non_existing_record_id}", owner)

        expect(response).to have_gitlab_http_status(:not_found)
        expect(json_response['message']).to eq '404 Not found'
      end

      it 'does not log an audit event' do
        expect { delete api("/projects/#{project.id}/pipelines/#{pipeline.id}", owner) }.not_to change { AuditEvent.count }
      end

      context 'when the pipeline has jobs' do
        let_it_be(:build) { create(:ci_build, project: project, pipeline: pipeline) }

        it 'destroys associated jobs' do
          delete api("/projects/#{project.id}/pipelines/#{pipeline.id}", owner)

          expect(response).to have_gitlab_http_status(:no_content)
          expect { build.reload }.to raise_error(ActiveRecord::RecordNotFound)
        end
      end
    end

    context 'unauthorized user' do
      context 'when user is not member' do
        it 'returns a 404' do
          delete api("/projects/#{project.id}/pipelines/#{pipeline.id}", non_member)

          expect(response).to have_gitlab_http_status(:not_found)
          expect(json_response['message']).to eq '404 Project Not Found'
        end
      end

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

        before do
          project.add_developer(developer)
        end

        it 'returns a 403' do
          delete api("/projects/#{project.id}/pipelines/#{pipeline.id}", developer)

          expect(response).to have_gitlab_http_status(:forbidden)
          expect(json_response['message']).to eq '403 Forbidden'
        end
      end
    end
  end

  describe 'POST /projects/:id/pipelines/:pipeline_id/retry' do
    context 'authorized user' do
      let_it_be(:pipeline) do
        create(:ci_pipeline, project: project, sha: project.commit.id,
                             ref: project.default_branch)
      end

      let_it_be(:build) { create(:ci_build, :failed, pipeline: pipeline) }

      it 'retries failed builds' do
        expect do
          post api("/projects/#{project.id}/pipelines/#{pipeline.id}/retry", user)
        end.to change { pipeline.builds.count }.from(1).to(2)

        expect(response).to have_gitlab_http_status(:created)
        expect(build.reload.retried?).to be true
      end
    end

    context 'unauthorized user' do
      it 'does not return a project pipeline' do
        post api("/projects/#{project.id}/pipelines/#{pipeline.id}/retry", non_member)

        expect(response).to have_gitlab_http_status(:not_found)
        expect(json_response['message']).to eq '404 Project Not Found'
        expect(json_response['id']).to be nil
      end
    end
  end

  describe 'POST /projects/:id/pipelines/:pipeline_id/cancel' do
    let_it_be(:pipeline) do
      create(:ci_empty_pipeline, project: project, sha: project.commit.id,
                                 ref: project.default_branch)
    end

    let_it_be(:build) { create(:ci_build, :running, pipeline: pipeline) }

    context 'authorized user' do
      it 'retries failed builds', :sidekiq_might_not_need_inline do
        post api("/projects/#{project.id}/pipelines/#{pipeline.id}/cancel", user)

        expect(response).to have_gitlab_http_status(:ok)
        expect(json_response['status']).to eq('canceled')
      end
    end

    context 'user without proper access rights' do
      let_it_be(:reporter) { create(:user) }

      before do
        project.add_reporter(reporter)
      end

      it 'rejects the action' do
        post api("/projects/#{project.id}/pipelines/#{pipeline.id}/cancel", reporter)

        expect(response).to have_gitlab_http_status(:forbidden)
        expect(pipeline.reload.status).to eq('pending')
      end
    end
  end

  describe 'GET /projects/:id/pipelines/:pipeline_id/test_report' do
    context 'authorized user' do
      subject { get api("/projects/#{project.id}/pipelines/#{pipeline.id}/test_report", user) }

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

      context 'when pipeline does not have a test report' do
        it 'returns an empty test report' do
          subject

          expect(response).to have_gitlab_http_status(:ok)
          expect(json_response['total_count']).to eq(0)
        end
      end

      context 'when pipeline has a test report' do
        let(:pipeline) { create(:ci_pipeline, :with_test_reports, project: project) }

        it 'returns the test report' do
          subject

          expect(response).to have_gitlab_http_status(:ok)
          expect(json_response['total_count']).to eq(4)
        end
      end

      context 'when pipeline has corrupt test reports' do
        before do
          create(:ci_build, :broken_test_reports, name: 'rspec', pipeline: pipeline)
        end

        it 'returns a suite_error' do
          subject

          expect(response).to have_gitlab_http_status(:ok)
          expect(json_response['test_suites'].first['suite_error']).to eq('JUnit XML parsing failed: 1:1: FATAL: Document is empty')
        end
      end
    end

    context 'unauthorized user' do
      it 'does not return project pipelines' do
        get api("/projects/#{project.id}/pipelines/#{pipeline.id}/test_report", non_member)

        expect(response).to have_gitlab_http_status(:not_found)
        expect(json_response['message']).to eq '404 Project Not Found'
      end
    end
  end
end