1 files changed, 25 insertions, 0 deletions
diff --git a/spec/lib/gitlab/usage/metrics/instrumentations/merge_request_widget_extension_metric_spec.rb b/spec/lib/gitlab/usage/metrics/instrumentations/merge_request_widget_extension_metric_spec.rb
new file mode 100644
index 00000000000..c0ac00c9cdd
--- /dev/null
+++ b/spec/lib/gitlab/usage/metrics/instrumentations/merge_request_widget_extension_metric_spec.rb
@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Usage::Metrics::Instrumentations::MergeRequestWidgetExtensionMetric,
+  :clean_gitlab_redis_shared_state do
+  before do
+    4.times do
+      Gitlab::UsageDataCounters::MergeRequestWidgetExtensionCounter.count(:terraform_count_expand)
+    end
+  end
+
+  let(:expected_value) { 4 }
+
+  it_behaves_like 'a correct instrumented metric value', {
+    options: { event: 'expand', widget: 'terraform' },
+    time_frame: 'all'
+  }
+
+  it 'raises an exception if widget option is not present' do
+    expect do
+      described_class.new(options: { event: 'expand' }, time_frame: 'all')
+    end.to raise_error(ArgumentError, /'widget' option is required/)
+  end
+end