1 files changed, 7 insertions, 0 deletions
diff --git a/test/ruby/test_lambda.rb b/test/ruby/test_lambda.rb
index f61e8a9f62..597da8a819 100644
--- a/test/ruby/test_lambda.rb
+++ b/test/ruby/test_lambda.rb
@@ -72,6 +72,13 @@ class TestLambdaParameters < Test::Unit::TestCase
     assert_raise(ArgumentError, bug9605) {proc(&plus).call [1,2]}
   end
 
+  def test_instance_exec
+    bug12568 = '[ruby-core:76300] [Bug #12568]'
+    assert_nothing_raised(ArgumentError, bug12568) do
+      instance_exec([1,2,3], &->(a=[]){ a })
+    end
+  end
+
   def yield_1(arg)
     yield arg
   end