1 files changed, 41 insertions, 0 deletions
diff --git a/spec/workers/flush_counter_increments_worker_spec.rb b/spec/workers/flush_counter_increments_worker_spec.rb
new file mode 100644
index 00000000000..14b49b97ac3
--- /dev/null
+++ b/spec/workers/flush_counter_increments_worker_spec.rb
@@ -0,0 +1,41 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe FlushCounterIncrementsWorker, :counter_attribute do
+  let(:project_statistics) { create(:project_statistics) }
+  let(:model) { CounterAttributeModel.find(project_statistics.id) }
+
+  describe '#perform', :redis do
+    let(:attribute) { model.class.counter_attributes.first }
+    let(:worker) { described_class.new }
+
+    subject { worker.perform(model.class.name, model.id, attribute) }
+
+    it 'flushes increments to database' do
+      expect(model.class).to receive(:find_by_id).and_return(model)
+      expect(model)
+        .to receive(:flush_increments_to_database!)
+        .with(attribute)
+        .and_call_original
+
+      subject
+    end
+
+    context 'when model class does not exist' do
+      subject { worker.perform('non-existend-model') }
+
+      it 'does nothing' do
+        expect(worker).not_to receive(:in_lock)
+      end
+    end
+
+    context 'when record does not exist' do
+      subject { worker.perform(model.class.name, model.id + 100, attribute) }
+
+      it 'does nothing' do
+        expect(worker).not_to receive(:in_lock)
+      end
+    end
+  end
+end