Showing alert for physical providers with invalid credentials

app/controllers/ems_physical_infra_controller.rb

@@ -7,6 +7,7 @@ class EmsPhysicalInfraController < ApplicationController
 
   before_action :check_privileges
   before_action :get_session_data
+  before_action :check_providers_credentials
   after_action :cleanup_action
   after_action :set_session_data
 
@@ -18,6 +19,16 @@ def self.table_name
     @table_name ||= "ems_physical_infra"
   end
 
+  # Check if there are providers with invalid credentials
+  # if true, adds a alert message to user
+  def check_providers_credentials
+    model.find_each do |provider|
+      unless provider.last_refresh_status == "never" && provider.authentication_status_ok?
+        add_flash(_("The provider \"%<name>s\" is with invalid credentials") % {:name => provider.name}, :error)
+      end
+    end
+  end
+
   def ems_path(*args)
     ems_physical_infra_path(*args)
   end

spec/controllers/ems_physical_infra_controller_spec.rb

@@ -84,9 +84,17 @@
     before(:each) do
       stub_user(:features => :all)
       FactoryGirl.create(:ems_vmware)
+      @provider = FactoryGirl.create(:ems_physical_infra)
+      allow(@provider).to receive(:authentication_status_ok?).and_return(false)
       get :show_list
     end
     it { expect(response.status).to eq(200) }
+
+    context "show provider with invalid credentials" do
+      it "shows an alert to user" do
+        expect(assigns(:flash_array).first[:message]).to include("The provider \"#{@provider.name}\" is with invalid credentials")
+      end
+    end
   end
 
   describe "breadcrumbs path on a 'show' page of an Physical Infrastructure Provider accessed from Dashboard maintab" do