1 files changed, 66 insertions, 0 deletions
diff --git a/spec/lib/gitlab/sidekiq_middleware/pause_control/strategies/click_house_migration_spec.rb b/spec/lib/gitlab/sidekiq_middleware/pause_control/strategies/click_house_migration_spec.rb
new file mode 100644
index 00000000000..470c860fb60
--- /dev/null
+++ b/spec/lib/gitlab/sidekiq_middleware/pause_control/strategies/click_house_migration_spec.rb
@@ -0,0 +1,66 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::SidekiqMiddleware::PauseControl::Strategies::ClickHouseMigration, feature_category: :database do
+  let(:worker_class) do
+    Class.new do
+      def self.name
+        'TestPauseWorker'
+      end
+
+      include ::ApplicationWorker
+      include ::ClickHouseWorker
+
+      def perform(*); end
+    end
+  end
+
+  before do
+    stub_const('TestPauseWorker', worker_class)
+  end
+
+  describe '#call' do
+    include Gitlab::ExclusiveLeaseHelpers
+
+    shared_examples 'a worker being executed' do
+      it 'schedules the job' do
+        expect(Gitlab::SidekiqMiddleware::PauseControl::PauseControlService).not_to receive(:add_to_waiting_queue!)
+
+        worker_class.perform_async('args1')
+
+        expect(worker_class.jobs.count).to eq(1)
+      end
+    end
+
+    context 'when lock is not taken' do
+      it_behaves_like 'a worker being executed'
+    end
+
+    context 'when lock is taken' do
+      include ExclusiveLeaseHelpers
+
+      around do |example|
+        ClickHouse::MigrationSupport::ExclusiveLock.execute_migration do
+          example.run
+        end
+      end
+
+      it 'does not schedule the job' do
+        expect(Gitlab::SidekiqMiddleware::PauseControl::PauseControlService).to receive(:add_to_waiting_queue!).once
+
+        worker_class.perform_async('args1')
+
+        expect(worker_class.jobs.count).to eq(0)
+      end
+
+      context 'when pause_clickhouse_workers_during_migration FF is disabled' do
+        before do
+          stub_feature_flags(pause_clickhouse_workers_during_migration: false)
+        end
+
+        it_behaves_like 'a worker being executed'
+      end
+    end
+  end
+end