3 files changed, 33 insertions, 0 deletions
diff --git a/spec/models/clusters/applications/knative_spec.rb b/spec/models/clusters/applications/knative_spec.rb
index 809880f5969..8fc755d2a26 100644
--- a/spec/models/clusters/applications/knative_spec.rb
+++ b/spec/models/clusters/applications/knative_spec.rb
@@ -108,6 +108,23 @@ describe Clusters::Applications::Knative do
       expect(subject.version).to eq('0.2.2')
       expect(subject.files).to eq(knative.files)
     end
+
+    it 'should not install metrics for prometheus' do
+      expect(subject.postinstall).to be_nil
+    end
+
+    context 'with prometheus installed' do
+      let(:prometheus) { create(:clusters_applications_prometheus, :installed) }
+      let(:knative) { create(:clusters_applications_knative, cluster: prometheus.cluster) }
+
+      subject { knative.install_command }
+
+      it 'should install metrics' do
+        expect(subject.postinstall).not_to be_nil
+        expect(subject.postinstall.length).to be(1)
+        expect(subject.postinstall[0]).to eql("kubectl apply -f #{Clusters::Applications::Knative::METRICS_CONFIG}")
+      end
+    end
   end
 
   describe '#files' do
diff --git a/spec/models/clusters/applications/prometheus_spec.rb b/spec/models/clusters/applications/prometheus_spec.rb
index 893ed3e3f64..27143f29350 100644
--- a/spec/models/clusters/applications/prometheus_spec.rb
+++ b/spec/models/clusters/applications/prometheus_spec.rb
@@ -165,6 +165,10 @@ describe Clusters::Applications::Prometheus do
       expect(subject.files).to eq(prometheus.files)
     end
 
+    it 'should not install knative metrics' do
+      expect(subject.postinstall).to be_nil
+    end
+
     context 'on a rbac enabled cluster' do
       before do
         prometheus.cluster.platform_kubernetes.rbac!
@@ -180,6 +184,17 @@ describe Clusters::Applications::Prometheus do
         expect(subject.version).to eq('6.7.3')
       end
     end
+
+    context 'with knative installed' do
+      let(:knative) { create(:clusters_applications_knative, :installed ) }
+      let(:prometheus) { create(:clusters_applications_prometheus, cluster: knative.cluster) }
+
+      subject { prometheus.install_command }
+
+      it 'should install metrics' do
+        expect(subject.postinstall).to include("kubectl apply -f #{Clusters::Applications::Knative::METRICS_CONFIG}")
+      end
+    end
   end
 
   describe '#files' do
diff --git a/spec/models/clusters/cluster_spec.rb b/spec/models/clusters/cluster_spec.rb
index 840f74c9890..f447e64b029 100644
--- a/spec/models/clusters/cluster_spec.rb
+++ b/spec/models/clusters/cluster_spec.rb
@@ -29,6 +29,7 @@ describe Clusters::Cluster do
   it { is_expected.to delegate_method(:available?).to(:application_helm).with_prefix }
   it { is_expected.to delegate_method(:available?).to(:application_ingress).with_prefix }
   it { is_expected.to delegate_method(:available?).to(:application_prometheus).with_prefix }
+  it { is_expected.to delegate_method(:available?).to(:application_knative).with_prefix }
 
   it { is_expected.to respond_to :project }