1 files changed, 139 insertions, 0 deletions
diff --git a/spec/services/ci/create_pipeline_service/logger_spec.rb b/spec/services/ci/create_pipeline_service/logger_spec.rb
new file mode 100644
index 00000000000..dfe0859015d
--- /dev/null
+++ b/spec/services/ci/create_pipeline_service/logger_spec.rb
@@ -0,0 +1,139 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Ci::CreatePipelineService do
+  context 'pipeline logger' do
+    let_it_be(:project) { create(:project, :repository) }
+    let_it_be(:user)    { project.owner }
+
+    let(:ref) { 'refs/heads/master' }
+    let(:service)  { described_class.new(project, user, { ref: ref }) }
+    let(:pipeline) { service.execute(:push).payload }
+    let(:file_location) { 'spec/fixtures/gitlab/ci/external_files/.gitlab-ci-template-1.yml' }
+
+    before do
+      stub_ci_pipeline_yaml_file(gitlab_ci_yaml)
+    end
+
+    let(:counters) do
+      {
+        'count' => a_kind_of(Numeric),
+        'avg'   => a_kind_of(Numeric),
+        'max'   => a_kind_of(Numeric),
+        'min'   => a_kind_of(Numeric)
+      }
+    end
+
+    let(:loggable_data) do
+      {
+        'pipeline_creation_caller' => 'Ci::CreatePipelineService',
+        'pipeline_source' => 'push',
+        'pipeline_id' => a_kind_of(Numeric),
+        'pipeline_persisted' => true,
+        'project_id' => project.id,
+        'pipeline_creation_service_duration_s' => a_kind_of(Numeric),
+        'pipeline_creation_duration_s' => counters,
+        'pipeline_size_count' => counters,
+        'pipeline_step_gitlab_ci_pipeline_chain_seed_duration_s' => counters
+      }
+    end
+
+    context 'when the duration is under the threshold' do
+      it 'does not create a log entry but it collects the data' do
+        expect(Gitlab::AppJsonLogger).not_to receive(:info)
+        expect(pipeline).to be_created_successfully
+
+        expect(service.logger.observations_hash)
+          .to match(
+            a_hash_including(
+              'pipeline_creation_duration_s' => counters,
+              'pipeline_size_count' => counters,
+              'pipeline_step_gitlab_ci_pipeline_chain_seed_duration_s' => counters
+            )
+          )
+      end
+    end
+
+    context 'when the durations exceeds the threshold' do
+      let(:timer) do
+        proc do
+          @timer = @timer.to_i + 30
+        end
+      end
+
+      before do
+        allow(Gitlab::Ci::Pipeline::Logger)
+          .to receive(:current_monotonic_time) { timer.call }
+      end
+
+      it 'creates a log entry' do
+        expect(Gitlab::AppJsonLogger)
+          .to receive(:info)
+          .with(a_hash_including(loggable_data))
+          .and_call_original
+
+        expect(pipeline).to be_created_successfully
+      end
+
+      context 'when the pipeline is not persisted' do
+        let(:loggable_data) do
+          {
+            'pipeline_creation_caller' => 'Ci::CreatePipelineService',
+            'pipeline_source' => 'push',
+            'pipeline_id' => nil,
+            'pipeline_persisted' => false,
+            'project_id' => project.id,
+            'pipeline_creation_service_duration_s' => a_kind_of(Numeric),
+            'pipeline_step_gitlab_ci_pipeline_chain_seed_duration_s' => counters
+          }
+        end
+
+        before do
+          allow_next_instance_of(Ci::Pipeline) do |pipeline|
+            expect(pipeline).to receive(:save!).and_raise { RuntimeError }
+          end
+        end
+
+        it 'creates a log entry' do
+          expect(Gitlab::AppJsonLogger)
+            .to receive(:info)
+            .with(a_hash_including(loggable_data))
+            .and_call_original
+
+          expect { pipeline }.to raise_error(RuntimeError)
+        end
+      end
+
+      context 'when the feature flag is disabled' do
+        before do
+          stub_feature_flags(ci_pipeline_creation_logger: false)
+        end
+
+        it 'does not create a log entry' do
+          expect(Gitlab::AppJsonLogger).not_to receive(:info)
+
+          expect(pipeline).to be_created_successfully
+          expect(service.logger.observations_hash).to eq({})
+        end
+      end
+    end
+
+    context 'when the size exceeds the threshold' do
+      before do
+        allow_next_instance_of(Ci::Pipeline) do |pipeline|
+          allow(pipeline).to receive(:total_size) { 5000 }
+        end
+      end
+
+      it 'creates a log entry' do
+        expect(Gitlab::AppJsonLogger)
+          .to receive(:info)
+          .with(a_hash_including(loggable_data))
+          .and_call_original
+
+        expect(pipeline).to be_created_successfully
+      end
+    end
+  end
+end