Expose test_reports in PipelineDetailsEntity

Exposes test report data in the PipelineDetailsEntity. This includes but
is not limited to the total running time, total test count and total
status.

app/serializers/pipeline_details_entity.rb

@@ -7,6 +7,9 @@ class PipelineDetailsEntity < PipelineEntity
 
   expose :details do
     expose :artifacts, using: BuildArtifactEntity
+    expose :test_reports, using: TestReportEntity do |pipeline|
+      pipeline.test_reports.total_count.zero? ? nil : pipeline.test_reports
+    end
     expose :manual_actions, using: BuildActionEntity
     expose :scheduled_actions, using: BuildActionEntity
   end

app/serializers/test_report_entity.rb

+# frozen_string_literal: true
+
+class TestReportEntity < Grape::Entity
+  expose :total_time
+  expose :total_count
+
+  expose :success_count
+  expose :failed_count
+  expose :skipped_count
+  expose :error_count
+
+  expose :test_suites, using: TestSuiteEntity do |report|
+    report.test_suites.values
+  end
+end

app/serializers/test_suite_entity.rb

+# frozen_string_literal: true
+
+class TestSuiteEntity < Grape::Entity
+  expose :name
+  expose :total_time
+  expose :total_count
+
+  expose :success_count
+  expose :failed_count
+  expose :skipped_count
+  expose :error_count
+
+  expose :test_cases, using: TestCaseEntity do |test_suite|
+    test_suite.test_cases.values.flat_map(&:values)
+  end
+end

spec/serializers/pipeline_details_entity_spec.rb

@@ -31,7 +31,7 @@ describe PipelineDetailsEntity do
         expect(subject[:details])
           .to include :duration, :finished_at
         expect(subject[:details])
-          .to include :stages, :artifacts, :manual_actions, :scheduled_actions
+          .to include :stages, :artifacts, :test_reports, :manual_actions, :scheduled_actions
         expect(subject[:details][:status]).to include :icon, :favicon, :text, :label
       end
 
@@ -113,6 +113,16 @@ describe PipelineDetailsEntity do
       end
     end
 
+    context 'when pipeline has test reports' do
+      let(:pipeline) { create(:ci_pipeline, :with_test_reports) }
+
+      it 'contains test reports' do
+        expect(subject).to include(:details)
+        expect(subject[:details]).to include(:test_reports)
+        expect(subject[:details][:test_reports][:total_time]).to eq(pipeline.test_reports.total_time)
+      end
+    end
+
     context 'when pipeline has YAML errors' do
       let(:pipeline) do
         create(:ci_pipeline, config: { rspec: { invalid: :value } })

spec/serializers/pipeline_serializer_spec.rb

@@ -158,7 +158,7 @@ describe PipelineSerializer do
 
         it 'verifies number of queries', :request_store do
           recorded = ActiveRecord::QueryRecorder.new { subject }
-          expected_queries = Gitlab.ee? ? 38 : 31
+          expected_queries = Gitlab.ee? ? 40 : 33
 
           expect(recorded.count).to be_within(2).of(expected_queries)
           expect(recorded.cached_count).to eq(0)
@@ -179,7 +179,7 @@ describe PipelineSerializer do
           # pipeline. With the same ref this check is cached but if refs are
           # different then there is an extra query per ref
           # https://gitlab.com/gitlab-org/gitlab-foss/issues/46368
-          expected_queries = Gitlab.ee? ? 44 : 38
+          expected_queries = Gitlab.ee? ? 46 : 40
           expect(recorded.count).to be_within(2).of(expected_queries)
           expect(recorded.cached_count).to eq(0)
         end

spec/serializers/test_report_entity_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe TestReportEntity do
+  let(:pipeline) { create(:ci_pipeline, :with_test_reports) }
+  let(:entity) { described_class.new(pipeline.test_reports) }
+
+  describe '#as_json' do
+    subject(:as_json) { entity.as_json }
+
+    it 'contains the total time' do
+      expect(as_json).to include(:total_time)
+    end
+
+    it 'contains the counts' do
+      expect(as_json).to include(:total_count, :success_count, :failed_count, :skipped_count, :error_count)
+    end
+
+    it 'contains the test suites' do
+      expect(as_json).to include(:test_suites)
+      expect(as_json[:test_suites].count).to eq(1)
+    end
+  end
+end

spec/serializers/test_suite_entity_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe TestSuiteEntity do
+  let(:pipeline) { create(:ci_pipeline, :with_test_reports) }
+  let(:entity) { described_class.new(pipeline.test_reports.test_suites.values.first) }
+
+  describe '#as_json' do
+    subject(:as_json) { entity.as_json }
+
+    it 'contains the suite name' do
+      expect(as_json).to include(:name)
+    end
+
+    it 'contains the total time' do
+      expect(as_json).to include(:total_time)
+    end
+
+    it 'contains the counts' do
+      expect(as_json).to include(:total_count, :success_count, :failed_count, :skipped_count, :error_count)
+    end
+
+    it 'contains the test cases' do
+      expect(as_json).to include(:test_cases)
+      expect(as_json[:test_cases].count).to eq(4)
+    end
+  end
+end