1 files changed, 29 insertions, 0 deletions
diff --git a/spec/support/shared_examples/alert_notification_service_shared_examples.rb b/spec/support/shared_examples/alert_notification_service_shared_examples.rb
new file mode 100644
index 00000000000..1568e4357a1
--- /dev/null
+++ b/spec/support/shared_examples/alert_notification_service_shared_examples.rb
@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+RSpec.shared_examples 'Alert Notification Service sends notification email' do
+  let(:notification_service) { spy }
+
+  it 'sends a notification for firing alerts only' do
+    expect(NotificationService)
+      .to receive(:new)
+      .and_return(notification_service)
+
+    expect(notification_service)
+      .to receive_message_chain(:async, :prometheus_alerts_fired)
+
+    expect(subject).to be_success
+  end
+end
+
+RSpec.shared_examples 'Alert Notification Service sends no notifications' do |http_status:|
+  let(:notification_service) { spy }
+  let(:create_events_service) { spy }
+
+  it 'does not notify' do
+    expect(notification_service).not_to receive(:async)
+    expect(create_events_service).not_to receive(:execute)
+
+    expect(subject).to be_error
+    expect(subject.http_status).to eq(http_status)
+  end
+end