test_equals3_subset_match (TestSexp)

    # File test/test_sexp.rb, line 155
      def test_equals3_subset_match
        util_equals3 s(:a), s(s(:a), s(:b))                 # left
        util_equals3 s(:a), s(:blah, s(:a   ), s(:b))       # mid 1
        util_equals3 s(:a, 1), s(:blah, s(:a, 1), s(:b))    # mid 2
        util_equals3 @basic_sexp, s(:blah, @basic_sexp.dup, s(:b))      # mid deeper
        util_equals3 @basic_sexp, s(@basic_sexp.dup, s(:a), s(:b))      # left deeper

        util_equals3 s(:a), s(:blah, s(:blah, s(:a)))       # left deeper
      end