Add test for rails_admin_path_for_resource

spec/helpers/application_helper_spec.rb

@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+require "rails_helper"
+
+describe ApplicationHelper, :type => :helper do
+  describe "#rails_admin_path_for_resource" do
+    context "user resource" do
+      let(:resource) { FactoryBot.create(:user) }
+      subject { rails_admin_path_for_resource(resource) }
+
+      it "should return a URL to the given resource within rails admin" do
+        expect(subject).to eq("/justask_admin/user/#{resource.id}")
+      end
+    end
+  end
+end