css/css-ui/user-select-none-on-input.html

<!DOCTYPE html>
<html>
<head>
    <title>Test user-select: none on input/textarea does not affect editability</title>
    <meta charset="utf-8">
    <link rel="author" title="Tim Nguyen" href="https://github.com/nt1m">
    <link rel="help" href="https://drafts.csswg.org/css-ui/#valdef-user-select-none">
    <style>
    input, textarea {
        -webkit-user-select: none;
        user-select: none;
    }
    </style>
</head>
<body>
    <input>
    <textarea></textarea>
    <script src="/resources/testharness.js"></script>
    <script src="/resources/testharnessreport.js"></script>
    <script src="/resources/testdriver.js"></script>
    <script src="/resources/testdriver-vendor.js"></script>
    <script>
    async function testElement(element) {
        const expectedText = "xyz";
        element.focus();
        await test_driver.send_keys(element, expectedText);
        assert_equals(element.value, expectedText, "Text should be entered");
        element.select();
        assert_equals(element.value.substring(element.selectionStart, element.selectionEnd), expectedText, "Text should be programatically selectable");
        await test_driver.send_keys(element, "\uE003");
        assert_equals(element.value, "", "Text should be cleared");
    }
    promise_test(() => {
        return testElement(document.querySelector("input"))
    }, "Test <input> with user-select: none");
    promise_test(() => {
        return testElement(document.querySelector("textarea"))
    }, "Test <textarea> with user-select: none");
    </script>
</body>
</html>