AS::StringInquirer#respond_to_missing? should fallback to super

in case String or any other ancestor class' respond_to_missing? was defined.

1 files changed, 16 insertions, 0 deletions

diff --git a/activesupport/test/string_inquirer_test.rb b/activesupport/test/string_inquirer_test.rb
index d41e4d6800..2a5e7d02e4 100644
--- a/activesupport/test/string_inquirer_test.rb
+++ b/activesupport/test/string_inquirer_test.rb
@@ -20,4 +20,20 @@ class StringInquirerTest < ActiveSupport::TestCase
   def test_respond_to
     assert_respond_to @string_inquirer, :development?
   end
+
+  def test_respond_to_fallback_to_string_respond_to
+    String.class_eval do
+      def respond_to_missing?(name, include_private = false)
+        (name == :bar) || super
+      end
+    end
+    str = ActiveSupport::StringInquirer.new("hello")
+
+    assert_respond_to str, :are_you_ready?
+    assert_respond_to str, :bar
+    assert_not_respond_to str, :nope
+
+  ensure
+    String.send :undef_method, :respond_to_missing?
+  end
 end