<script src="../include.js"></script>
<script>
    test(() => {
        function dumpText(text) {
            println(`text.data = '${text.data}', length = ${text.length}`);
        }

        let text = new Text('🙃');
        dumpText(text);
        text.appendData('🙃')
        dumpText(text);
        text.insertData(2, 'hi🙃')
        dumpText(text);
        text.deleteData(2, 1)
        dumpText(text);
        text.replaceData(2, 5, 'replaced!')
        dumpText(text);
        println(text.substringData(2, 5))
    });
</script>