1 files changed, 57 insertions, 0 deletions
diff --git a/spec/models/clusters/integrations/prometheus_spec.rb b/spec/models/clusters/integrations/prometheus_spec.rb
new file mode 100644
index 00000000000..a7be1673ce2
--- /dev/null
+++ b/spec/models/clusters/integrations/prometheus_spec.rb
@@ -0,0 +1,57 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Clusters::Integrations::Prometheus do
+  include KubernetesHelpers
+  include StubRequests
+
+  describe 'associations' do
+    it { is_expected.to belong_to(:cluster).class_name('Clusters::Cluster') }
+  end
+
+  describe 'validations' do
+    it { is_expected.to validate_presence_of(:cluster) }
+    it { is_expected.not_to allow_value(nil).for(:enabled) }
+  end
+
+  describe '#prometheus_client' do
+    include_examples '#prometheus_client shared' do
+      let(:factory) { :clusters_integrations_prometheus }
+    end
+  end
+
+  describe '#configured?' do
+    let(:prometheus) { create(:clusters_integrations_prometheus, cluster: cluster) }
+
+    subject { prometheus.configured? }
+
+    context 'when a kubenetes client is present' do
+      let(:cluster) { create(:cluster, :project, :provided_by_gcp) }
+
+      it { is_expected.to be_truthy }
+
+      context 'when it is disabled' do
+        let(:prometheus) { create(:clusters_integrations_prometheus, :disabled, cluster: cluster) }
+
+        it { is_expected.to be_falsey }
+      end
+
+      context 'when the kubernetes URL is blocked' do
+        before do
+          blocked_ip = '127.0.0.1' # localhost addresses are blocked by default
+
+          stub_all_dns(cluster.platform.api_url, ip_address: blocked_ip)
+        end
+
+        it { is_expected.to be_falsey }
+      end
+    end
+
+    context 'when a kubenetes client is not present' do
+      let(:cluster) { create(:cluster) }
+
+      it { is_expected.to be_falsy }
+    end
+  end
+end