1 files changed, 30 insertions, 0 deletions
diff --git a/spec/lib/gitlab/usage/metrics/instrumentations/index_inconsistencies_metric_spec.rb b/spec/lib/gitlab/usage/metrics/instrumentations/index_inconsistencies_metric_spec.rb
new file mode 100644
index 00000000000..92a576d1a9f
--- /dev/null
+++ b/spec/lib/gitlab/usage/metrics/instrumentations/index_inconsistencies_metric_spec.rb
@@ -0,0 +1,30 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Usage::Metrics::Instrumentations::IndexInconsistenciesMetric, feature_category: :database do
+  it_behaves_like 'a correct instrumented metric value', { time_frame: 'all' } do
+    let(:expected_value) do
+      [
+        { inconsistency_type: 'wrong_indexes', object_name: 'index_name_1' },
+        { inconsistency_type: 'missing_indexes', object_name: 'index_name_2' },
+        { inconsistency_type: 'extra_indexes', object_name: 'index_name_3' }
+      ]
+    end
+
+    let(:runner) { instance_double(Gitlab::Database::SchemaValidation::Runner, execute: inconsistencies) }
+    let(:inconsistency_class) { Gitlab::Database::SchemaValidation::Inconsistency }
+
+    let(:inconsistencies) do
+      [
+        instance_double(inconsistency_class, object_name: 'index_name_1', type: 'wrong_indexes'),
+        instance_double(inconsistency_class, object_name: 'index_name_2', type: 'missing_indexes'),
+        instance_double(inconsistency_class, object_name: 'index_name_3', type: 'extra_indexes')
+      ]
+    end
+
+    before do
+      allow(Gitlab::Database::SchemaValidation::Runner).to receive(:new).and_return(runner)
+    end
+  end
+end