1 files changed, 38 insertions, 0 deletions
diff --git a/spec/services/ci/compare_reports_base_service_spec.rb b/spec/services/ci/compare_reports_base_service_spec.rb
new file mode 100644
index 00000000000..9ce58c4972d
--- /dev/null
+++ b/spec/services/ci/compare_reports_base_service_spec.rb
@@ -0,0 +1,38 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Ci::CompareReportsBaseService do
+  let(:service) { described_class.new(project) }
+  let(:project) { create(:project, :repository) }
+
+  describe '#latest?' do
+    subject { service.latest?(base_pipeline, head_pipeline, data) }
+
+    let!(:base_pipeline) { nil }
+    let!(:head_pipeline) { create(:ci_pipeline, :with_test_reports, project: project) }
+    let!(:key) { service.send(:key, base_pipeline, head_pipeline) }
+
+    context 'when cache key is latest' do
+      let(:data) { { key: key } }
+
+      it { is_expected.to be_truthy }
+    end
+
+    context 'when cache key is outdated' do
+      before do
+        head_pipeline.update_column(:updated_at, 10.minutes.ago)
+      end
+
+      let(:data) { { key: key } }
+
+      it { is_expected.to be_falsy }
+    end
+
+    context 'when cache key is empty' do
+      let(:data) { { key: nil } }
+
+      it { is_expected.to be_falsy }
+    end
+  end
+end