Feature flag definition

app/services/ci/create_job_artifacts_service.rb

@@ -7,6 +7,7 @@ module Ci
     ArtifactsExistError = Class.new(StandardError)
 
     LSIF_ARTIFACT_TYPE = 'lsif'
+    METRICS_REPORT_UPLOAD_EVENT_NAME = 'i_testing_metrics_report_artifact_uploaders'
 
     OBJECT_STORAGE_ERRORS = [
       Errno::EIO,
@@ -157,7 +158,7 @@ module Ci
     def track_artifact_uploader(artifact)
       return unless artifact.file_type == 'metrics'
 
-      track_usage_event('i_metrics_report_artifact_uploaders', @job.user_id)
+      track_usage_event(METRICS_REPORT_UPLOAD_EVENT_NAME, @job.user_id)
     end
 
     def parse_dotenv_artifact(artifact)

config/feature_flags/development/usage_data_i_testing_metrics_report_artifact_uploaders.yml

+---
+name: usage_data_i_testing_metrics_report_artifact_uploaders
+introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/51670
+rollout_issue_url:
+milestone: '13.9'
+type: development
+group: group::testing
+default_enabled: true

spec/services/ci/create_job_artifacts_service_spec.rb

@@ -27,6 +27,14 @@ RSpec.describe Ci::CreateJobArtifactsService do
     UploadedFile.new(upload.path, **params)
   end
 
+  def unique_metrics_report_uploaders
+    Gitlab::UsageDataCounters::HLLRedisCounter.unique_events(
+      event_names: described_class::METRICS_REPORT_UPLOAD_EVENT_NAME,
+      start_date: 2.weeks.ago,
+      end_date: 2.weeks.from_now
+    )
+  end
+
   describe '#execute' do
     subject { service.execute(artifacts_file, params, metadata_file: metadata_file) }
 
@@ -43,9 +51,9 @@ RSpec.describe Ci::CreateJobArtifactsService do
       end
 
       it 'does not track the job user_id' do
-        expect(service).not_to receive(:track_usage_event)
-
         subject
+
+        expect(unique_metrics_report_uploaders).to eq(0)
       end
 
       context 'when metadata file is also uploaded' do
@@ -188,9 +196,9 @@ RSpec.describe Ci::CreateJobArtifactsService do
       let(:params) { { 'artifact_type' => 'metrics', 'artifact_format' => 'gzip' }.with_indifferent_access }
 
       it 'tracks the job user_id' do
-        expect(service).to receive(:track_usage_event).with('i_metrics_report_artifact_uploaders', 123)
-
         subject
+
+        expect(unique_metrics_report_uploaders).to eq(1)
       end
     end