1 files changed, 24 insertions, 0 deletions
diff --git a/spec/lib/gitlab/usage/metrics/instrumentations/redis_hll_metric_spec.rb b/spec/lib/gitlab/usage/metrics/instrumentations/redis_hll_metric_spec.rb
index 347a2c779cb..97306051533 100644
--- a/spec/lib/gitlab/usage/metrics/instrumentations/redis_hll_metric_spec.rb
+++ b/spec/lib/gitlab/usage/metrics/instrumentations/redis_hll_metric_spec.rb
@@ -25,4 +25,28 @@ RSpec.describe Gitlab::Usage::Metrics::Instrumentations::RedisHLLMetric, :clean_
   it 'raise exception if events options is not present' do
     expect { described_class.new(time_frame: '28d') }.to raise_error(ArgumentError)
   end
+
+  describe 'children classes' do
+    let(:options) { { events: ['i_quickactions_approve'] } }
+
+    context 'availability not defined' do
+      subject { Class.new(described_class).new(time_frame: nil, options: options) }
+
+      it 'returns default availability' do
+        expect(subject.available?).to eq(true)
+      end
+    end
+
+    context 'availability defined' do
+      subject do
+        Class.new(described_class) do
+          available? { false }
+        end.new(time_frame: nil, options: options)
+      end
+
+      it 'returns defined availability' do
+        expect(subject.available?).to eq(false)
+      end
+    end
+  end
 end