# File test/unit/assertions.rb, line 135
      def assert_match(pattern, string, message="")
        _wrap_assertion do
          full_message = build_message(message, string, pattern) do |arg1, arg2|
            "<#{arg1}> expected to be =~\n" +
            "<#{arg2}>"
          end
          assert_block(full_message) { string =~ pattern }
        end
      end