Add check for calling add in tests

lib/api/usage_data.rb

@@ -14,7 +14,7 @@ module API
       end
 
       params do
-        requires :event, type: String, desc: 'The event name it should be tracked'
+        requires :event, type: String, desc: 'The event name that should be tracked'
       end
 
       post 'increment_unique_users' do

spec/requests/api/usage_data_spec.rb

@@ -11,7 +11,7 @@ RSpec.describe API::UsageData do
     let(:unknown_event) { 'unknown' }
 
     context 'usage_data_api feature not enabled' do
-      it 'retruns not_found' do
+      it 'returns not_found' do
         stub_feature_flags(usage_data_api: false)
 
         post api(endpoint, user), params: { event: known_event }
@@ -31,6 +31,8 @@ RSpec.describe API::UsageData do
     context 'with authentication' do
       before do
         stub_feature_flags(usage_data_api: true)
+        stub_feature_flags("usage_data_#{known_event}" => true)
+        stub_application_setting(usage_ping_enabled: true)
       end
 
       context 'when event is missing from params' do
@@ -43,6 +45,8 @@ RSpec.describe API::UsageData do
 
       context 'with correct params' do
         it 'returns status ok' do
+          expect(Gitlab::Redis::HLL).to receive(:add)
+
           post api(endpoint, user), params: { event: known_event }
 
           expect(response).to have_gitlab_http_status(:ok)
@@ -51,6 +55,8 @@ RSpec.describe API::UsageData do
 
       context 'with unknown event' do
         it 'returns status ok' do
+          expect(Gitlab::Redis::HLL).not_to receive(:add)
+
           post api(endpoint, user), params: { event: unknown_event }
 
           expect(response).to have_gitlab_http_status(:ok)