1 files changed, 18 insertions, 1 deletions
diff --git a/spec/services/prometheus/create_default_alerts_service_spec.rb b/spec/services/prometheus/create_default_alerts_service_spec.rb
index 3382844c99a..a28c38491de 100644
--- a/spec/services/prometheus/create_default_alerts_service_spec.rb
+++ b/spec/services/prometheus/create_default_alerts_service_spec.rb
@@ -3,7 +3,7 @@
 require 'spec_helper'
 
 describe Prometheus::CreateDefaultAlertsService do
-  let_it_be(:project) { create(:project) }
+  let_it_be(:project) { create(:project, :repository) }
   let(:instance) { described_class.new(project: project) }
   let(:expected_alerts) { described_class::DEFAULT_ALERTS }
 
@@ -45,6 +45,23 @@ describe Prometheus::CreateDefaultAlertsService do
            .by(expected_alerts.size)
         end
 
+        it 'does not schedule an update to prometheus' do
+          expect(::Clusters::Applications::ScheduleUpdateService).not_to receive(:new)
+          execute
+        end
+
+        context 'cluster with prometheus exists' do
+          let!(:cluster) { create(:cluster, :with_installed_prometheus, :provided_by_user, projects: [project]) }
+
+          it 'schedules an update to prometheus' do
+            expect_next_instance_of(::Clusters::Applications::ScheduleUpdateService) do |instance|
+              expect(instance).to receive(:execute)
+            end
+
+            execute
+          end
+        end
+
         context 'multiple environments' do
           let!(:production) { create(:environment, project: project, name: 'production') }