1 files changed, 4 insertions, 0 deletions
diff --git a/test/ruby/test_ast.rb b/test/ruby/test_ast.rb
index f59b54c17a..27c6753a7e 100644
--- a/test/ruby/test_ast.rb
+++ b/test/ruby/test_ast.rb
@@ -129,6 +129,10 @@ class TestAst < Test::Unit::TestCase
     end
   end
 
+  def test_allocate
+    assert_raise(TypeError) {RubyVM::AST::Node.allocate}
+  end
+
   def test_column_with_long_heredoc_identifier
     term = "A"*257
     ast = RubyVM::AST.parse("<<-#{term}\n""ddddddd\n#{term}\n")