1 files changed, 30 insertions, 0 deletions
diff --git a/test/ruby/test_module.rb b/test/ruby/test_module.rb
index ff74fc7f7..1540e9868 100644
--- a/test/ruby/test_module.rb
+++ b/test/ruby/test_module.rb
@@ -728,4 +728,34 @@ class TestModule < Test::Unit::TestCase
     c = eval("class C\u{df}; self; end")
     assert_equal("TestModule::C\u{df}", c.name, '[ruby-core:24600]')
   end
+
+  def test_method_added
+    memo = []
+    mod = Module.new do
+      (class << self ; self ; end).class_eval do
+        define_method :method_added do |sym|
+          memo << sym
+          memo << instance_methods(false)
+          memo << (instance_method(sym) rescue nil)
+        end
+      end
+      def f
+      end
+      alias g f
+      attr_reader :a
+      attr_writer :a
+    end
+    assert_equal :f, memo.shift
+    assert_equal [:f], memo.shift, '[ruby-core:25536]'
+    assert_equal mod.instance_method(:f), memo.shift
+    assert_equal :g, memo.shift
+    assert_equal [:f, :g], memo.shift
+    assert_equal mod.instance_method(:f), memo.shift
+    assert_equal :a, memo.shift
+    assert_equal [:f, :g, :a], memo.shift
+    assert_equal mod.instance_method(:a), memo.shift
+    assert_equal :a=, memo.shift
+    assert_equal [:f, :g, :a, :a=], memo.shift
+    assert_equal mod.instance_method(:a=), memo.shift
+  end
 end