Delegation works with reserved words passed to `:to`

Fixes #16956.

1 files changed, 11 insertions, 0 deletions

diff --git a/activesupport/test/core_ext/module_test.rb b/activesupport/test/core_ext/module_test.rb
index 380f5ad42b..3c49c4d14f 100644
--- a/activesupport/test/core_ext/module_test.rb
+++ b/activesupport/test/core_ext/module_test.rb
@@ -56,8 +56,14 @@ Developer = Struct.new(:client) do
   delegate :name, :to => :client, :prefix => nil
 end
 
+Event = Struct.new(:case) do
+  delegate :foo, :to => :case
+end
+
 Tester = Struct.new(:client) do
   delegate :name, :to => :client, :prefix => false
+
+  def foo; 1; end
 end
 
 Product = Struct.new(:name) do
@@ -495,4 +501,9 @@ class MethodAliasingTest < ActiveSupport::TestCase
     assert_equal 'duck_with_orange', @instance.duck
     assert FooClassWithBarMethod.public_method_defined?(:duck)
   end
+
+  def test_delegate_with_case
+    event = Event.new(Tester.new)
+    assert_equal 1, event.foo
+  end
 end