1 files changed, 57 insertions, 0 deletions
diff --git a/spec/migrations/schedule_sync_issuables_state_id_where_nil_spec.rb b/spec/migrations/schedule_sync_issuables_state_id_where_nil_spec.rb
new file mode 100644
index 00000000000..105c05bb7ca
--- /dev/null
+++ b/spec/migrations/schedule_sync_issuables_state_id_where_nil_spec.rb
@@ -0,0 +1,57 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+require Rails.root.join('db', 'post_migrate', '20190506135400_schedule_sync_issuables_state_id_where_nil')
+
+describe ScheduleSyncIssuablesStateIdWhereNil, :migration, :sidekiq do
+  let(:namespaces) { table(:namespaces) }
+  let(:projects) { table(:projects) }
+  let(:merge_requests) { table(:merge_requests) }
+  let(:issues) { table(:issues) }
+  let(:migration) { described_class.new }
+  let(:group) { namespaces.create!(name: 'gitlab', path: 'gitlab') }
+  let(:project) { projects.create!(namespace_id: group.id) }
+
+  shared_examples 'scheduling migrations' do
+    before do
+      Sidekiq::Worker.clear_all
+      stub_const("#{described_class.name}::BATCH_SIZE", 2)
+    end
+
+    it 'correctly schedules issuable sync background migration' do
+      Sidekiq::Testing.fake! do
+        Timecop.freeze do
+          migrate!
+
+          expect(migration).to be_scheduled_delayed_migration(120.seconds, resource_1.id, resource_3.id)
+          expect(migration).to be_scheduled_delayed_migration(240.seconds, resource_5.id, resource_5.id)
+          expect(BackgroundMigrationWorker.jobs.size).to eq(2)
+        end
+      end
+    end
+  end
+
+  describe '#up' do
+    context 'issues' do
+      it_behaves_like 'scheduling migrations' do
+        let(:migration) { described_class::ISSUES_MIGRATION }
+        let!(:resource_1) { issues.create!(description: 'first', state: 'opened', state_id: nil) }
+        let!(:resource_2) { issues.create!(description: 'second', state: 'closed', state_id: 2) }
+        let!(:resource_3) { issues.create!(description: 'third', state: 'closed', state_id: nil) }
+        let!(:resource_4) { issues.create!(description: 'fourth', state: 'closed', state_id: 2) }
+        let!(:resource_5) { issues.create!(description: 'fifth', state: 'closed', state_id: nil) }
+      end
+    end
+
+    context 'merge requests' do
+      it_behaves_like 'scheduling migrations' do
+        let(:migration) { described_class::MERGE_REQUESTS_MIGRATION }
+        let!(:resource_1) { merge_requests.create!(state: 'opened', state_id: nil, target_project_id: project.id, target_branch: 'feature1', source_branch: 'master') }
+        let!(:resource_2) { merge_requests.create!(state: 'closed', state_id: 2, target_project_id: project.id, target_branch: 'feature2', source_branch: 'master') }
+        let!(:resource_3) { merge_requests.create!(state: 'merged', state_id: nil, target_project_id: project.id, target_branch: 'feature3', source_branch: 'master') }
+        let!(:resource_4) { merge_requests.create!(state: 'locked', state_id: 3, target_project_id: project.id, target_branch: 'feature4', source_branch: 'master') }
+        let!(:resource_5) { merge_requests.create!(state: 'locked', state_id: nil, target_project_id: project.id, target_branch: 'feature4', source_branch: 'master') }
+      end
+    end
+  end
+end