1 files changed, 24 insertions, 0 deletions
diff --git a/spec/migrations/schedule_populate_merge_request_metrics_with_events_data_spec.rb b/spec/migrations/schedule_populate_merge_request_metrics_with_events_data_spec.rb
new file mode 100644
index 00000000000..97e089c5cb8
--- /dev/null
+++ b/spec/migrations/schedule_populate_merge_request_metrics_with_events_data_spec.rb
@@ -0,0 +1,24 @@
+require 'spec_helper'
+require Rails.root.join('db', 'post_migrate', '20171128214150_schedule_populate_merge_request_metrics_with_events_data.rb')
+
+describe SchedulePopulateMergeRequestMetricsWithEventsData, :migration, :sidekiq do
+  let!(:mrs) { create_list(:merge_request, 3) }
+
+  it 'correctly schedules background migrations' do
+    stub_const("#{described_class.name}::BATCH_SIZE", 2)
+
+    Sidekiq::Testing.fake! do
+      Timecop.freeze do
+        migrate!
+
+        expect(described_class::MIGRATION)
+          .to be_scheduled_migration(10.minutes, mrs.first.id, mrs.second.id)
+
+        expect(described_class::MIGRATION)
+          .to be_scheduled_migration(20.minutes, mrs.third.id, mrs.third.id)
+
+        expect(BackgroundMigrationWorker.jobs.size).to eq(2)
+      end
+    end
+  end
+end