1 files changed, 30 insertions, 0 deletions
diff --git a/spec/lib/gitlab/metrics/dashboard/dynamic_dashboard_service_spec.rb b/spec/lib/gitlab/metrics/dashboard/dynamic_dashboard_service_spec.rb
new file mode 100644
index 00000000000..eecd257b38d
--- /dev/null
+++ b/spec/lib/gitlab/metrics/dashboard/dynamic_dashboard_service_spec.rb
@@ -0,0 +1,30 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Gitlab::Metrics::Dashboard::DynamicDashboardService, :use_clean_rails_memory_store_caching do
+  include MetricsDashboardHelpers
+
+  set(:project) { build(:project) }
+  set(:environment) { create(:environment, project: project) }
+
+  describe '#get_dashboard' do
+    let(:service_params) { [project, nil, { environment: environment, dashboard_path: nil }] }
+    let(:service_call) { described_class.new(*service_params).get_dashboard }
+
+    it_behaves_like 'valid embedded dashboard service response'
+
+    it 'caches the unprocessed dashboard for subsequent calls' do
+      expect(YAML).to receive(:safe_load).once.and_call_original
+
+      described_class.new(*service_params).get_dashboard
+      described_class.new(*service_params).get_dashboard
+    end
+
+    context 'when called with a non-system dashboard' do
+      let(:dashboard_path) { 'garbage/dashboard/path' }
+
+      it_behaves_like 'valid embedded dashboard service response'
+    end
+  end
+end