1 files changed, 10 insertions, 0 deletions
diff --git a/test/ruby/test_zjit.rb b/test/ruby/test_zjit.rb
index 692dfb486c..7c29fdeb19 100644
--- a/test/ruby/test_zjit.rb
+++ b/test/ruby/test_zjit.rb
@@ -99,6 +99,16 @@ class TestZJIT < Test::Unit::TestCase
     }, insns: [:intern]
   end
 
+  def test_duphash
+    assert_compiles '{a: 1}', %q{
+      def test
+        {a: 1}
+      end
+
+      test
+    }, insns: [:duphash]
+  end
+
   def test_setglobal_with_trace_var_exception
     assert_compiles '"rescued"', %q{
       def test