1 files changed, 15 insertions, 0 deletions
diff --git a/test/test_delegate.rb b/test/test_delegate.rb
new file mode 100644
index 0000000000..73740dd4a5
--- /dev/null
+++ b/test/test_delegate.rb
@@ -0,0 +1,15 @@
+require 'test/unit'
+require 'delegate'
+
+class TestDelegateClass < Test::Unit::TestCase
+  module M
+    attr_reader :m
+  end
+
+  def test_extend
+    obj = DelegateClass(Array).new([])
+    obj.instance_eval { @m = :m }
+    obj.extend M
+    assert_equal(:m, obj.m, "[ruby-dev:33116]")
+  end
+end