1 files changed, 52 insertions, 1 deletions
diff --git a/spec/models/clusters/applications/prometheus_spec.rb b/spec/models/clusters/applications/prometheus_spec.rb
index e8ba9737c23..26267c64112 100644
--- a/spec/models/clusters/applications/prometheus_spec.rb
+++ b/spec/models/clusters/applications/prometheus_spec.rb
@@ -11,6 +11,21 @@ describe Clusters::Applications::Prometheus do
   include_examples 'cluster application helm specs', :clusters_applications_prometheus
   include_examples 'cluster application initial status specs'
 
+  describe 'after_destroy' do
+    let(:project) { create(:project) }
+    let(:cluster) { create(:cluster, :with_installed_helm, projects: [project]) }
+    let!(:application) { create(:clusters_applications_prometheus, :installed, cluster: cluster) }
+    let!(:prometheus_service) { project.create_prometheus_service(active: true) }
+
+    it 'deactivates prometheus_service after destroy' do
+      expect do
+        application.destroy!
+
+        prometheus_service.reload
+      end.to change(prometheus_service, :active).from(true).to(false)
+    end
+  end
+
   describe 'transition to installed' do
     let(:project) { create(:project) }
     let(:cluster) { create(:cluster, :with_installed_helm, projects: [project]) }
@@ -23,12 +38,20 @@ describe Clusters::Applications::Prometheus do
     end
 
     it 'ensures Prometheus service is activated' do
-      expect(prometheus_service).to receive(:update).with(active: true)
+      expect(prometheus_service).to receive(:update!).with(active: true)
 
       subject.make_installed
     end
   end
 
+  describe '#can_uninstall?' do
+    let(:prometheus) { create(:clusters_applications_prometheus) }
+
+    subject { prometheus.can_uninstall? }
+
+    it { is_expected.to be_truthy }
+  end
+
   describe '#prometheus_client' do
     context 'cluster is nil' do
       it 'returns nil' do
@@ -134,6 +157,34 @@ describe Clusters::Applications::Prometheus do
     end
   end
 
+  describe '#uninstall_command' do
+    let(:prometheus) { create(:clusters_applications_prometheus) }
+
+    subject { prometheus.uninstall_command }
+
+    it { is_expected.to be_an_instance_of(Gitlab::Kubernetes::Helm::DeleteCommand) }
+
+    it 'has the application name' do
+      expect(subject.name).to eq('prometheus')
+    end
+
+    it 'has files' do
+      expect(subject.files).to eq(prometheus.files)
+    end
+
+    it 'is rbac' do
+      expect(subject).to be_rbac
+    end
+
+    context 'on a non rbac enabled cluster' do
+      before do
+        prometheus.cluster.platform_kubernetes.abac!
+      end
+
+      it { is_expected.not_to be_rbac }
+    end
+  end
+
   describe '#upgrade_command' do
     let(:prometheus) { build(:clusters_applications_prometheus) }
     let(:values) { prometheus.values }