ladybird/Tests/LibWeb/Text/input/select-text.html

<script src="include.js"></script>
<style>
    div {
        font-size: 20px;
    }
</style>
<div id="text">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Morbi sapien velit, sagittis vel mauris eget, placerat mattis arcu. Praesent ac pharetra dolor.</div>
<script>
    test(() => {
        // Select word "Lorem" by dispatching double click event
        internals.doubleclick(20, 20);

        // Should be equal to "Lorem"
        println(window.getSelection());

        const text = document.getElementById("text");

        let modifiers = 1 << 2; // Mod_Shift
        internals.sendKey(text, "Right", modifiers);
        internals.sendKey(text, "Right", modifiers);
        internals.sendKey(text, "Right", modifiers);
        // Should be equal to "Lorem ip"
        println(window.getSelection());
    });
</script>