add a fail case, that anoyingly hangs

test/parser/test_fails.rb

@@ -0,0 +1,26 @@
+require_relative "helper"
+
+# some cases that fail, and fail badly.
+
+# These make the parse "hang", ie there is some looping going on in the parser, but not straight down, as theey don't
+#    throw even StackError
+
+# Annoyingly, the user error is quite small, a missing bracket or things
+
+class TestFails < MiniTest::Test
+  # include the magic (setup and parse -> test method translation), see there
+  include ParserHelper
+  
+  def test_fail_function
+    @string_input    = <<HERE
+class Foo
+  def bar
+    4
+  end
+end
+HERE
+    @parse_output = nil
+    @transform_output = nil
+    @parser = @parser.root
+  end
+end