1 files changed, 27 insertions, 0 deletions
diff --git a/spec/lib/gitlab/usage/metric_spec.rb b/spec/lib/gitlab/usage/metric_spec.rb
index 19d2d3048eb..10ae94e746b 100644
--- a/spec/lib/gitlab/usage/metric_spec.rb
+++ b/spec/lib/gitlab/usage/metric_spec.rb
@@ -51,4 +51,31 @@ RSpec.describe Gitlab::Usage::Metric do
       expect(described_class.new(issue_count_metric_definiton).with_suggested_name).to eq({ counts: { issues: 'count_issues' } })
     end
   end
+
+  context 'unavailable metric' do
+    let(:instrumentation_class) { "UnavailableMetric" }
+    let(:issue_count_metric_definiton) do
+      double(:issue_count_metric_definiton,
+        attributes.merge({ attributes: attributes, instrumentation_class: instrumentation_class })
+      )
+    end
+
+    before do
+      unavailable_metric_class = Class.new(Gitlab::Usage::Metrics::Instrumentations::CountIssuesMetric) do
+        def available?
+          false
+        end
+      end
+
+      stub_const("Gitlab::Usage::Metrics::Instrumentations::#{instrumentation_class}", unavailable_metric_class)
+    end
+
+    [:with_value, :with_instrumentation, :with_suggested_name].each do |method_name|
+      describe "##{method_name}" do
+        it 'returns an empty hash' do
+          expect(described_class.new(issue_count_metric_definiton).public_send(method_name)).to eq({})
+        end
+      end
+    end
+  end
 end