Fix race condition in spec/features/projects/clusters/applications_spec.rb

This was not happening very often but with the previous changes to
create SSL certs for helm tiller it takes long enough to be created that
we see the test failing a lot more

spec/features/projects/clusters/applications_spec.rb

@@ -46,12 +46,14 @@ describe 'Clusters Applications', :js do
           end
         end
 
-        it 'he sees status transition' do
+        it 'they see status transition' do
           page.within('.js-cluster-application-row-helm') do
             # FE sends request and gets the response, then the buttons is "Install"
             expect(page.find(:css, '.js-cluster-application-install-button')['disabled']).to eq('true')
             expect(page).to have_css('.js-cluster-application-install-button', exact_text: 'Install')
 
+            wait_until_helm_created!
+
             Clusters::Cluster.last.application_helm.make_installing!
 
             # FE starts polling and update the buttons to "Installing"
@@ -83,7 +85,7 @@ describe 'Clusters Applications', :js do
             end
           end
 
-          it 'he sees status transition' do
+          it 'they see status transition' do
             page.within('.js-cluster-application-row-ingress') do
               # FE sends request and gets the response, then the buttons is "Install"
               expect(page).to have_css('.js-cluster-application-install-button[disabled]')
@@ -116,4 +118,12 @@ describe 'Clusters Applications', :js do
       end
     end
   end
+
+  def wait_until_helm_created!
+    retries = 0
+    while Clusters::Cluster.last.application_helm.nil? do
+      raise "Timed out waiting for helm application to be created in DB" if (retries += 1) > 3
+      sleep(1)
+    end
+  end
 end