1 files changed, 42 insertions, 0 deletions
diff --git a/spec/models/concerns/prometheus_adapter_spec.rb b/spec/models/concerns/prometheus_adapter_spec.rb
index db20a8b4701..25a2d290f76 100644
--- a/spec/models/concerns/prometheus_adapter_spec.rb
+++ b/spec/models/concerns/prometheus_adapter_spec.rb
@@ -77,6 +77,28 @@ describe PrometheusAdapter, :use_clean_rails_memory_store_caching do
         end
       end
     end
+
+    describe 'additional_metrics' do
+      let(:additional_metrics_environment_query) { Gitlab::Prometheus::Queries::AdditionalMetricsEnvironmentQuery }
+      let(:environment) { build_stubbed(:environment, slug: 'env-slug') }
+      let(:time_window) { [1552642245.067, 1552642095.831] }
+
+      around do |example|
+        Timecop.freeze { example.run }
+      end
+
+      context 'with valid data' do
+        subject { service.query(:additional_metrics_environment, environment, *time_window) }
+
+        before do
+          stub_reactive_cache(service, prometheus_data, additional_metrics_environment_query, environment.id, *time_window)
+        end
+
+        it 'returns reactive data' do
+          expect(subject).to eq(prometheus_data)
+        end
+      end
+    end
   end
 
   describe '#calculate_reactive_cache' do
@@ -121,4 +143,24 @@ describe PrometheusAdapter, :use_clean_rails_memory_store_caching do
       end
     end
   end
+
+  describe '#build_query_args' do
+    subject { service.build_query_args(*args) }
+
+    context 'when active record models are included' do
+      let(:args) { [double(:environment, id: 12)] }
+
+      it 'serializes by id' do
+        is_expected.to eq [12]
+      end
+    end
+
+    context 'when args are safe for serialization' do
+      let(:args) { ['stringy arg', 5, 6.0, :symbolic_arg] }
+
+      it 'does nothing' do
+        is_expected.to eq args
+      end
+    end
+  end
 end