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-rw-r--r--test/ruby/test_refinement.rb8
1 files changed, 8 insertions, 0 deletions
diff --git a/test/ruby/test_refinement.rb b/test/ruby/test_refinement.rb
index 872ca1754a..05ac1030c5 100644
--- a/test/ruby/test_refinement.rb
+++ b/test/ruby/test_refinement.rb
@@ -616,6 +616,14 @@ class TestRefinement < Test::Unit::TestCase
assert_equal('[{"1":2},{"3":4}]', x)
end
+ def test_refine_with_proc
+ assert_raise(ArgumentError) do
+ Module.new {
+ refine(String, &Proc.new {})
+ }
+ end
+ end
+
private
def eval_using(mod, s)