Add tests for optimistic locking

1 files changed, 28 insertions, 0 deletions

diff --git a/spec/lib/gitlab/optimistic_locking_spec.rb b/spec/lib/gitlab/optimistic_locking_spec.rb
new file mode 100644
index 00000000000..75c78cf077a
--- /dev/null
+++ b/spec/lib/gitlab/optimistic_locking_spec.rb
@@ -0,0 +1,28 @@
+require 'spec_helper'
+
+describe Gitlab::OptimisticLocking, lib: true do
+  describe '#retry_lock' do
+    let!(:pipeline) { create(:ci_pipeline) }
+    let!(:pipeline2) { Ci::Pipeline.find(pipeline.id) }
+
+    it 'does not reload object if state changes' do
+      expect(pipeline).not_to receive(:reload)
+      expect(pipeline).to receive(:succeed).and_call_original
+
+      described_class.retry_lock(pipeline) do |subject|
+        subject.succeed
+      end
+    end
+
+    it 'retries action if exception is raised' do
+      pipeline.succeed
+
+      expect(pipeline2).to receive(:reload).and_call_original
+      expect(pipeline2).to receive(:drop).twice.and_call_original
+
+      described_class.retry_lock(pipeline2) do |subject|
+        subject.drop
+      end
+    end
+  end
+end