1 files changed, 9 insertions, 0 deletions
diff --git a/test/ripper/test_lexer.rb b/test/ripper/test_lexer.rb
index 8e8a616627..92587ae4c0 100644
--- a/test/ripper/test_lexer.rb
+++ b/test/ripper/test_lexer.rb
@@ -264,4 +264,13 @@ world"
     CODE
     assert_equal(code, Ripper.tokenize(code).join(""), bug)
   end
+
+  def test_heredoc_unterminated_interpolation
+    code = <<~'HEREDOC'
+    <<A+1
+    #{
+    HEREDOC
+
+    assert_include(Ripper.tokenize(code).join(""), "+1")
+  end
 end