require 'test/unit' require '-test-/proc' class TestProc < Test::Unit::TestCase class TestBMethod < Test::Unit::TestCase end end class TestProc::TestBMethod class Base def foo(*a) a end end class Bound < Base define_method(:foo, Bug::Proc.make_caller(42)) end def test_super_in_bmethod obj = Bound.new assert_equal([1, 42], obj.foo(1)) end end