1 files changed, 72 insertions, 0 deletions
diff --git a/spec/services/clusters/applications/update_service_spec.rb b/spec/services/clusters/applications/update_service_spec.rb
new file mode 100644
index 00000000000..2d299882af0
--- /dev/null
+++ b/spec/services/clusters/applications/update_service_spec.rb
@@ -0,0 +1,72 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Clusters::Applications::UpdateService do
+  include TestRequestHelpers
+
+  let(:cluster) { create(:cluster, :project, :provided_by_gcp) }
+  let(:user) { create(:user) }
+  let(:params) { { application: 'knative', hostname: 'udpate.example.com' } }
+  let(:service) { described_class.new(cluster, user, params) }
+
+  subject { service.execute(test_request) }
+
+  describe '#execute' do
+    before do
+      allow(ClusterPatchAppWorker).to receive(:perform_async)
+    end
+
+    context 'application is not installed' do
+      it 'raises Clusters::Applications::BaseService::InvalidApplicationError' do
+        expect(ClusterPatchAppWorker).not_to receive(:perform_async)
+
+        expect { subject }
+          .to raise_exception { Clusters::Applications::BaseService::InvalidApplicationError }
+          .and not_change { Clusters::Applications::Knative.count }
+          .and not_change { Clusters::Applications::Knative.with_status(:scheduled).count }
+      end
+    end
+
+    context 'application is installed' do
+      context 'application is schedulable' do
+        let!(:application) do
+          create(:clusters_applications_knative, status: 3, cluster: cluster)
+        end
+
+        it 'updates the application data' do
+          expect do
+            subject
+          end.to change { application.reload.hostname }.to(params[:hostname])
+        end
+
+        it 'makes application scheduled!' do
+          subject
+
+          expect(application.reload).to be_scheduled
+        end
+
+        it 'schedules ClusterPatchAppWorker' do
+          expect(ClusterPatchAppWorker).to receive(:perform_async)
+
+          subject
+        end
+      end
+
+      context 'application is not schedulable' do
+        let!(:application) do
+          create(:clusters_applications_knative, status: 4, cluster: cluster)
+        end
+
+        it 'raises StateMachines::InvalidTransition' do
+          expect(ClusterPatchAppWorker).not_to receive(:perform_async)
+
+          expect { subject }
+            .to raise_exception { StateMachines::InvalidTransition }
+            .and not_change { application.reload.hostname }
+            .and not_change { Clusters::Applications::Knative.with_status(:scheduled).count }
+        end
+      end
+    end
+  end
+end