Add some tests for jupyter app AR model

app/models/clusters/applications/jupyter.rb

@@ -57,10 +57,10 @@ module Clusters
             "extraEnv" => {
               "GITLAB_HOST" => gitlab_url
             },
-            "cookieSecret" => SecureRandom.hex(32)
+            "cookieSecret" => cookie_secret
           },
           "proxy" => {
-            "secretToken" => SecureRandom.hex(32)
+            "secretToken" => secret_token
           },
           "auth" => {
             "gitlab" => {
@@ -79,6 +79,14 @@ module Clusters
       def content_values
         YAML.load_file(chart_values_file).deep_merge!(specification)
       end
+
+      def secret_token
+        @secret_token ||= SecureRandom.hex(32)
+      end
+
+      def cookie_secret
+        @cookie_secret ||= SecureRandom.hex(32)
+      end
     end
   end
 end

spec/factories/clusters/applications/helm.rb

@@ -35,6 +35,8 @@ FactoryBot.define do
     factory :clusters_applications_ingress, class: Clusters::Applications::Ingress
     factory :clusters_applications_prometheus, class: Clusters::Applications::Prometheus
     factory :clusters_applications_runner, class: Clusters::Applications::Runner
-    factory :clusters_applications_jupyter, class: Clusters::Applications::Jupyter
+    factory :clusters_applications_jupyter, class: Clusters::Applications::Jupyter do
+      oauth_application factory: :oauth_application
+    end
   end
 end

spec/models/clusters/applications/jupyter_spec.rb

+require 'rails_helper'
+
+describe Clusters::Applications::Jupyter do
+  include_examples 'cluster application core specs', :clusters_applications_jupyter
+
+  it { is_expected.to belong_to(:oauth_application) }
+
+  describe '#set_initial_status' do
+    before do
+      jupyter.set_initial_status
+    end
+
+    context 'when ingress is not installed' do
+      let(:cluster) { create(:cluster, :provided_by_gcp) }
+      let(:jupyter) { create(:clusters_applications_jupyter, cluster: cluster) }
+
+      it { expect(jupyter.status_name).to be(:not_installable) }
+    end
+
+    context 'when ingress is installed and external_ip is assigned' do
+      let(:ingress) { create(:clusters_applications_ingress, :installed, external_ip: '127.0.0.1') }
+      let(:jupyter) { create(:clusters_applications_jupyter, cluster: ingress.cluster) }
+
+      it { expect(jupyter.status_name).to be(:installable) }
+    end
+  end
+
+  describe '#install_command' do
+    let!(:ingress) { create(:clusters_applications_ingress, :installed, external_ip: '127.0.0.1') }
+    let!(:jupyter) { create(:clusters_applications_jupyter, cluster: ingress.cluster) }
+
+    subject { jupyter.install_command }
+
+    it { is_expected.to be_an_instance_of(Gitlab::Kubernetes::Helm::InstallCommand) }
+
+    it 'should be initialized with 4 arguments' do
+      expect(subject.name).to eq('jupyter')
+      expect(subject.chart).to eq('jupyter/jupyterhub')
+      expect(subject.repository).to eq('https://jupyterhub.github.io/helm-chart/')
+      expect(subject.values).to eq(jupyter.values)
+    end
+  end
+
+  describe '#values' do
+    let(:jupyter) { create(:clusters_applications_jupyter) }
+
+    subject { jupyter.values }
+
+    it 'should include valid values' do
+      is_expected.to include('ingress')
+      is_expected.to include('hub')
+      is_expected.to include('rbac')
+      is_expected.to include('proxy')
+      is_expected.to include('auth')
+      is_expected.to include("clientId: #{jupyter.oauth_application.uid}")
+      is_expected.to include("callbackUrl: #{jupyter.callback_url}")
+    end
+  end
+end