diff --git a/actionview/test/activerecord/polymorphic_routes_test.rb b/actionview/test/activerecord/polymorphic_routes_test.rb
index 76899c7aff..b9040d5e39 100644
--- a/actionview/test/activerecord/polymorphic_routes_test.rb
+++ b/actionview/test/activerecord/polymorphic_routes_test.rb
@@ -91,6 +91,18 @@ class PolymorphicRoutesTest < ActionController::TestCase
     end
   end
 
+  def test_symbol
+    with_test_routes do
+      assert_equal "http://example.com/projects", polymorphic_url(:projects)
+    end
+  end
+
+  def test_symbol_with_options
+    with_test_routes do
+      assert_equal "http://example.com/projects?id=10", polymorphic_url(:projects, :id => 10)
+    end
+  end
+
   def test_passing_routes_proxy
     with_namespaced_routes(:blog) do
       proxy = ActionDispatch::Routing::RoutesProxy.new(_routes, self)