1 files changed, 35 insertions, 0 deletions
diff --git a/spec/migrations/reschedule_builds_stages_migration_spec.rb b/spec/migrations/reschedule_builds_stages_migration_spec.rb
new file mode 100644
index 00000000000..ae432f7338f
--- /dev/null
+++ b/spec/migrations/reschedule_builds_stages_migration_spec.rb
@@ -0,0 +1,35 @@
+require 'spec_helper'
+require Rails.root.join('db', 'post_migrate', '20180405101928_reschedule_builds_stages_migration')
+
+describe RescheduleBuildsStagesMigration, :sidekiq, :migration do
+  let(:projects) { table(:projects) }
+  let(:pipelines) { table(:ci_pipelines) }
+  let(:stages) { table(:ci_stages) }
+  let(:jobs) { table(:ci_builds) }
+
+  before do
+    stub_const("#{described_class}::BATCH_SIZE", 1)
+
+    projects.create!(id: 123, name: 'gitlab', path: 'gitlab-ce')
+    pipelines.create!(id: 1, project_id: 123, ref: 'master', sha: 'adf43c3a')
+    stages.create!(id: 1, project_id: 123, pipeline_id: 1, name: 'test')
+
+    jobs.create!(id: 11, commit_id: 1, project_id: 123, stage_id: nil)
+    jobs.create!(id: 206, commit_id: 1, project_id: 123, stage_id: nil)
+    jobs.create!(id: 3413, commit_id: 1, project_id: 123, stage_id: nil)
+    jobs.create!(id: 4109, commit_id: 1, project_id: 123, stage_id: 1)
+  end
+
+  it 'schedules delayed background migrations in batches in bulk' do
+    Sidekiq::Testing.fake! do
+      Timecop.freeze do
+        migrate!
+
+        expect(described_class::MIGRATION).to be_scheduled_delayed_migration(5.minutes, 11, 11)
+        expect(described_class::MIGRATION).to be_scheduled_delayed_migration(10.minutes, 206, 206)
+        expect(described_class::MIGRATION).to be_scheduled_delayed_migration(15.minutes, 3413, 3413)
+        expect(BackgroundMigrationWorker.jobs.size).to eq 3
+      end
+    end
+  end
+end