1 files changed, 40 insertions, 0 deletions
diff --git a/spec/lib/gitlab/utils/measuring_spec.rb b/spec/lib/gitlab/utils/measuring_spec.rb
new file mode 100644
index 00000000000..254f53f7da3
--- /dev/null
+++ b/spec/lib/gitlab/utils/measuring_spec.rb
@@ -0,0 +1,40 @@
+# frozen_string_literal: true
+
+require 'fast_spec_helper'
+
+describe Gitlab::Utils::Measuring do
+  describe '#with_measuring' do
+    let(:base_log_data) { {} }
+    let(:result) { "result" }
+
+    before do
+      allow(ActiveSupport::Logger).to receive(:logger_outputs_to?).with(Gitlab::Utils::Measuring.logger, STDOUT).and_return(false)
+    end
+
+    let(:measurement) { described_class.new(base_log_data) }
+
+    subject do
+      measurement.with_measuring { result }
+    end
+
+    it 'measures and logs data', :aggregate_failure do
+      expect(measurement).to receive(:with_measure_time).and_call_original
+      expect(measurement).to receive(:with_count_queries).and_call_original
+      expect(measurement).to receive(:with_gc_stats).and_call_original
+
+      expect(described_class.logger).to receive(:info).with(include(:gc_stats, :time_to_finish, :number_of_sql_calls, :memory_usage, :label))
+
+      is_expected.to eq(result)
+    end
+
+    context 'with base_log_data provided' do
+      let(:base_log_data) { { test: "data" } }
+
+      it 'logs includes base data' do
+        expect(described_class.logger).to receive(:info).with(include(:test, :gc_stats, :time_to_finish, :number_of_sql_calls, :memory_usage, :label))
+
+        subject
+      end
+    end
+  end
+end