Create new CI config entry `coverage_report`

lib/gitlab/ci/config/entry/reports.rb

@@ -8,6 +8,7 @@ module Gitlab
         # Entry that represents a configuration of job artifacts.
         #
         class Reports < ::Gitlab::Config::Entry::Node
+          include ::Gitlab::Config::Entry::Configurable
           include ::Gitlab::Config::Entry::Validatable
           include ::Gitlab::Config::Entry::Attributable
 
@@ -15,10 +16,13 @@ module Gitlab
             %i[junit codequality sast secret_detection dependency_scanning container_scanning
                dast performance browser_performance load_performance license_scanning metrics lsif
                dotenv cobertura terraform accessibility cluster_applications
-               requirements coverage_fuzzing api_fuzzing cluster_image_scanning].freeze
+               requirements coverage_fuzzing api_fuzzing cluster_image_scanning
+               coverage_report].freeze
 
           attributes ALLOWED_KEYS
 
+          entry :coverage_report, Reports::CoverageReport, description: 'Coverage report configuration.'
+
           validations do
             validates :config, type: Hash
             validates :config, allowed_keys: ALLOWED_KEYS
@@ -47,10 +51,18 @@ module Gitlab
               validates :cluster_applications, array_of_strings_or_string: true # DEPRECATED: https://gitlab.com/gitlab-org/gitlab/-/issues/333441
               validates :requirements, array_of_strings_or_string: true
             end
+
+            validates :config, mutually_exclusive_keys: [:coverage_report, :cobertura]
           end
 
           def value
-            @config.transform_values { |v| Array(v) }
+            @config.transform_values do |value|
+              if value.is_a?(Hash)
+                value
+              else
+                Array(value)
+              end
+            end
           end
         end
       end

lib/gitlab/ci/config/entry/reports/coverage_report.rb

+# frozen_string_literal: true
+
+module Gitlab
+  module Ci
+    class Config
+      module Entry
+        class Reports
+          class CoverageReport < ::Gitlab::Config::Entry::Node
+            include ::Gitlab::Config::Entry::Validatable
+            include ::Gitlab::Config::Entry::Attributable
+
+            ALLOWED_KEYS = %i[coverage_format path].freeze
+            SUPPORTED_COVERAGE = %w[cobertura].freeze
+
+            attributes ALLOWED_KEYS
+
+            validations do
+              validates :config, type: Hash
+              validates :config, allowed_keys: ALLOWED_KEYS
+
+              with_options(presence: true) do
+                validates :coverage_format, inclusion: { in: SUPPORTED_COVERAGE, message: "must be one of supported formats: #{SUPPORTED_COVERAGE.join(', ')}." }
+                validates :path, type: String
+              end
+            end
+          end
+        end
+      end
+    end
+  end
+end

lib/gitlab/config/entry/validators.rb

@@ -39,6 +39,17 @@ module Gitlab
           end
         end
 
+        class MutuallyExclusiveKeysValidator < ActiveModel::EachValidator
+          def validate_each(record, attribute, value)
+            mutually_exclusive_keys = value.try(:keys).to_a & options[:in]
+
+            if mutually_exclusive_keys.length > 1
+              record.errors.add(attribute, "please use only one the following keys: " +
+                mutually_exclusive_keys.join(', '))
+            end
+          end
+        end
+
         class AllowedValuesValidator < ActiveModel::EachValidator
           def validate_each(record, attribute, value)
             unless options[:in].include?(value.to_s)

spec/lib/gitlab/ci/config/entry/reports/coverage_report_spec.rb

+# frozen_string_literal: true
+
+require 'fast_spec_helper'
+
+RSpec.describe Gitlab::Ci::Config::Entry::Reports::CoverageReport do
+  let(:entry) { described_class.new(config) }
+
+  describe 'validations' do
+    context 'when it is valid' do
+      let(:config) { { coverage_format: 'cobertura', path: 'cobertura-coverage.xml' } }
+
+      it { expect(entry).to be_valid }
+
+      it { expect(entry.value).to eq(config) }
+    end
+
+    context 'with unsupported coverage format' do
+      let(:config) { { coverage_format: 'jacoco', path: 'jacoco.xml' } }
+
+      it { expect(entry).not_to be_valid }
+
+      it { expect(entry.errors).to include /format must be one of supported formats/ }
+    end
+
+    context 'without coverage format' do
+      let(:config) { { path: 'cobertura-coverage.xml' } }
+
+      it { expect(entry).not_to be_valid }
+
+      it { expect(entry.errors).to include /format can't be blank/ }
+    end
+
+    context 'without path' do
+      let(:config) { { coverage_format: 'cobertura' } }
+
+      it { expect(entry).not_to be_valid }
+
+      it { expect(entry.errors).to include /path can't be blank/ }
+    end
+
+    context 'with invalid path' do
+      let(:config) { { coverage_format: 'cobertura', path: 123 } }
+
+      it { expect(entry).not_to be_valid }
+
+      it { expect(entry.errors).to include /path should be a string/ }
+    end
+
+    context 'with unknown keys' do
+      let(:config) { { coverage_format: 'cobertura', path: 'cobertura-coverage.xml', foo: :bar } }
+
+      it { expect(entry).not_to be_valid }
+
+      it { expect(entry.errors).to include /contains unknown keys/ }
+    end
+  end
+end

spec/lib/gitlab/ci/config/entry/reports_spec.rb

@@ -6,12 +6,8 @@ RSpec.describe Gitlab::Ci::Config::Entry::Reports do
   let(:entry) { described_class.new(config) }
 
   describe 'validates ALLOWED_KEYS' do
-    let(:artifact_file_types) { Ci::JobArtifact.file_types }
-
-    described_class::ALLOWED_KEYS.each do |keyword, _|
-      it "expects #{keyword} to be an artifact file_type" do
-        expect(artifact_file_types).to include(keyword)
-      end
+    it "expects ALLOWED_KEYS to be an artifact file_type or coverage_report" do
+      expect(Ci::JobArtifact.file_types.keys.map(&:to_sym) + [:coverage_report]).to include(*described_class::ALLOWED_KEYS)
     end
   end
 
@@ -68,6 +64,45 @@ RSpec.describe Gitlab::Ci::Config::Entry::Reports do
           it_behaves_like 'a valid entry', params[:keyword], params[:file]
         end
       end
+
+      context 'when coverage_report is specified' do
+        let(:coverage_format) { :cobertura }
+        let(:filename) { 'cobertura-coverage.xml' }
+        let(:coverage_report) { { path: filename, coverage_format: coverage_format } }
+        let(:config) { { coverage_report: coverage_report } }
+
+        it 'is valid' do
+          expect(entry).to be_valid
+        end
+
+        it 'returns artifacts configuration' do
+          expect(entry.value).to eq(config)
+        end
+
+        context 'and another report is specified' do
+          let(:config) { { coverage_report: coverage_report, dast: 'gl-dast-report.json' } }
+
+          it 'is valid' do
+            expect(entry).to be_valid
+          end
+
+          it 'returns artifacts configuration' do
+            expect(entry.value).to eq({ coverage_report: coverage_report, dast: ['gl-dast-report.json'] })
+          end
+        end
+
+        context 'and a direct coverage report format is specified' do
+          let(:config) { { coverage_report: coverage_report, cobertura: 'cobertura-coverage.xml' } }
+
+          it 'is not valid' do
+            expect(entry).not_to be_valid
+          end
+
+          it 'reports error' do
+            expect(entry.errors).to include /please use only one the following keys: coverage_report, cobertura/
+          end
+        end
+      end
     end
 
     context 'when entry value is not correct' do

spec/lib/gitlab/config/entry/validators_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Config::Entry::Validators do
+  let(:klass) do
+    Class.new do
+      include ActiveModel::Validations
+      include Gitlab::Config::Entry::Validators
+    end
+  end
+
+  let(:instance) { klass.new }
+
+  describe described_class::MutuallyExclusiveKeysValidator do
+    using RSpec::Parameterized::TableSyntax
+
+    before do
+      klass.instance_eval do
+        validates :config, mutually_exclusive_keys: [:foo, :bar]
+      end
+
+      allow(instance).to receive(:config).and_return(config)
+    end
+
+    where(:context, :config, :valid_result) do
+      'with mutually exclusive keys' | { foo: 1, bar: 2 } | false
+      'without mutually exclusive keys' | { foo: 1 } | true
+      'without mutually exclusive keys' | { bar: 1 } | true
+      'with other keys' | { foo: 1, baz: 2 } | true
+    end
+
+    with_them do
+      it 'validates the instance' do
+        expect(instance.valid?).to be(valid_result)
+
+        unless valid_result
+          expect(instance.errors.messages_for(:config)).to include /please use only one the following keys: foo, bar/
+        end
+      end
+    end
+  end
+end

spec/services/ci/create_pipeline_service/artifacts_spec.rb

+# frozen_string_literal: true
+require 'spec_helper'
+
+RSpec.describe Ci::CreatePipelineService do
+  let_it_be(:project) { create(:project, :repository) }
+  let_it_be(:user) { project.first_owner }
+
+  let(:ref) { 'refs/heads/master' }
+  let(:source) { :push }
+
+  let(:service) { described_class.new(project, user, { ref: ref }) }
+  let(:pipeline) { service.execute(source).payload }
+
+  describe 'artifacts:' do
+    before do
+      stub_ci_pipeline_yaml_file(config)
+      allow_next_instance_of(Ci::BuildScheduleWorker) do |instance|
+        allow(instance).to receive(:perform).and_return(true)
+      end
+    end
+
+    describe 'reports:' do
+      context 'with valid config' do
+        let(:config) do
+          <<~YAML
+          test-job:
+            script: "echo 'hello world' > cobertura.xml"
+            artifacts:
+              reports:
+                coverage_report:
+                  coverage_format: 'cobertura'
+                  path: 'cobertura.xml'
+
+          dependency-scanning-job:
+            script: "echo 'hello world' > gl-dependency-scanning-report.json"
+            artifacts:
+              reports:
+                dependency_scanning: 'gl-dependency-scanning-report.json'
+          YAML
+        end
+
+        it 'creates pipeline with builds' do
+          expect(pipeline).to be_persisted
+          expect(pipeline).not_to have_yaml_errors
+          expect(pipeline.builds.pluck(:name)).to contain_exactly('test-job', 'dependency-scanning-job')
+        end
+      end
+
+      context 'with invalid config' do
+        let(:config) do
+          <<~YAML
+          test-job:
+            script: "echo 'hello world' > cobertura.xml"
+            artifacts:
+              reports:
+                foo: 'bar'
+          YAML
+        end
+
+        it 'creates pipeline with yaml errors' do
+          expect(pipeline).to be_persisted
+          expect(pipeline).to have_yaml_errors
+        end
+      end
+    end
+  end
+end