1 files changed, 13 insertions, 0 deletions
diff --git a/test/ruby/test_syntax.rb b/test/ruby/test_syntax.rb
index b7e021a4ff..9cace7ec2b 100644
--- a/test/ruby/test_syntax.rb
+++ b/test/ruby/test_syntax.rb
@@ -1957,6 +1957,19 @@ eom
     assert_equal(/9/, eval('9.then { /#{it}/o }'))
   end
 
+  def test_it_with_splat_super_method
+    bug21256 = '[ruby-core:121592] [Bug #21256]'
+
+    a = Class.new do
+      define_method(:foo) { it }
+    end
+    b = Class.new(a) do
+      def foo(*args) = super
+    end
+
+    assert_equal(1, b.new.foo(1), bug21256)
+  end
+
   def test_value_expr_in_condition
     mesg = /void value expression/
     assert_syntax_error("tap {a = (true ? next : break)}", mesg)