1 files changed, 61 insertions, 0 deletions
diff --git a/spec/lib/gitlab/sidekiq_middleware/query_analyzer_spec.rb b/spec/lib/gitlab/sidekiq_middleware/query_analyzer_spec.rb
new file mode 100644
index 00000000000..e58af1d60fe
--- /dev/null
+++ b/spec/lib/gitlab/sidekiq_middleware/query_analyzer_spec.rb
@@ -0,0 +1,61 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::SidekiqMiddleware::QueryAnalyzer, query_analyzers: false do
+  describe 'the PreventCrossDatabaseModification' do
+    describe '#call' do
+      let(:worker) { double(:worker) }
+      let(:job) { { 'jid' => 'job123' } }
+      let(:queue) { 'some-queue' }
+      let(:middleware) { described_class.new }
+
+      def do_queries
+      end
+
+      subject { middleware.call(worker, job, queue) { do_queries } }
+
+      context 'when there is a cross modification' do
+        def do_queries
+          Project.transaction do
+            Project.where(id: -1).update_all(id: -1)
+            ::Ci::Pipeline.where(id: -1).update_all(id: -1)
+          end
+        end
+
+        it 'detects cross modifications and tracks exception' do
+          expect(::Gitlab::ErrorTracking).to receive(:track_and_raise_for_dev_exception)
+
+          subject
+        end
+
+        context 'when the detect_cross_database_modification is disabled' do
+          before do
+            stub_feature_flags(detect_cross_database_modification: false)
+          end
+
+          it 'does not detect cross modifications' do
+            expect(::Gitlab::ErrorTracking).not_to receive(:track_and_raise_for_dev_exception)
+
+            subject
+          end
+        end
+      end
+
+      context 'when there is no cross modification' do
+        def do_queries
+          Project.transaction do
+            Project.where(id: -1).update_all(id: -1)
+            Namespace.where(id: -1).update_all(id: -1)
+          end
+        end
+
+        it 'does not log anything' do
+          expect(::Gitlab::ErrorTracking).not_to receive(:track_and_raise_for_dev_exception)
+
+          subject
+        end
+      end
+    end
+  end
+end