# File test/unit/assertions.rb, line 280
                        def assert_no_match(regexp, string, message="")
                                _wrap_assertion {
                                        assert_instance_of(Regexp, regexp, "The first argument to assert_does_not_match should be a Regexp.")
                                        full_message = build_message(message, regexp.source, string) {
                                                | arg1, arg2 |
                                                "</#{arg1}/> expected to not match\n" +
                                                " <#{arg2}>"
                                        }
                                        assert_block(full_message) {
                                                regexp !~ string
                                        }
                                }
                        end