1 files changed, 12 insertions, 0 deletions
diff --git a/spec/models/clusters/applications/prometheus_spec.rb b/spec/models/clusters/applications/prometheus_spec.rb
index 2905b58066b..aeca6ee903a 100644
--- a/spec/models/clusters/applications/prometheus_spec.rb
+++ b/spec/models/clusters/applications/prometheus_spec.rb
@@ -4,6 +4,18 @@ describe Clusters::Applications::Prometheus do
   include_examples 'cluster application core specs', :clusters_applications_prometheus
   include_examples 'cluster application status specs', :cluster_application_prometheus
 
+  describe '.installed' do
+    subject { described_class.installed }
+
+    let!(:cluster) { create(:clusters_applications_prometheus, :installed) }
+
+    before do
+      create(:clusters_applications_prometheus, :errored)
+    end
+
+    it { is_expected.to contain_exactly(cluster) }
+  end
+
   describe 'transition to installed' do
     let(:project) { create(:project) }
     let(:cluster) { create(:cluster, projects: [project]) }