Spec for diagnostic zone server delete toolbar

spec/helpers/application_helper/toolbar/diagnostics_zone_center_spec.rb

@@ -0,0 +1,13 @@
+describe ApplicationHelper::Toolbar::MiqAeDomainCenter do
+  describe "definition of class" do
+    it "contains the server delete button" do
+      diagnostics_zone_center = Kernel.const_get("ApplicationHelper::Toolbar::DiagnosticsZoneCenter")
+      buttons = diagnostics_zone_center.definition["ldap_domain_vmdb"].buttons
+      button_names = []
+      buttons.each do |button|
+        button_names += button[:items].pluck(:id) if button[:items]
+      end
+      expect(button_names).to include("zone_delete_server")
+    end
+  end
+end