adds admin submit button helper

spec/helpers/admin_helper_spec.rb

@@ -0,0 +1,19 @@
+require 'rails_helper'
+
+describe AdminHelper do
+
+  describe "#admin_submit_action" do
+
+    it "returns new when the the resource has not been persisted" do
+      poll = build(:poll)
+      expect(admin_submit_action(poll)).to eq("new")
+    end
+
+    it "returns edit when the the resource has been persisted" do
+      poll = create(:poll)
+      expect(admin_submit_action(poll)).to eq("edit")
+    end
+
+  end
+
+end