Method optional_values_use_brackets

tests/parser_context.py:218–220

(self)

            assert m == myarg

        def optional_values_use_brackets(self):
            result = self.tasked.help_for("--optval")
            assert result == ("-p [STRING], --optval[=STRING]", "")

        def underscored_args(self):
            c = Context(args=(Argument("i_have_underscores", help="yup"),))