LayoutTests/platform/mac/editing/input/maxlength.html

<html>
<head>
<script src="../../../../fast/js/resources/js-test-pre.js"></script>
</head>
<body>
<p>Test for <a href="https://bugs.webkit.org/show_bug.cgi?id=19479">bug 19479</a>:
Special characters can be inserted in text field having reached maxlength.</p>
<p id="description"></p>
<input id="test" maxlength=8>
<div id="console"></div>
<script>

    var testInput = document.getElementById("test");
    testInput.focus();

    if (window.testRunner) {
        
        try {
            var testElement = document.getElementById("test");

            textInputController.setMarkedText("1234567890", 10, 0);
            textInputController.unmarkText();
            shouldBe('testElement.value', '"12345678"');

            textInputController.setMarkedText("FAIL", 14, 0);
            textInputController.unmarkText();
            shouldBe('testElement.value', '"12345678"');

        } catch (ex) {
            testFailed("Exception: " + ex.description);
        }
    } else {
        document.write("<p>To test this manually:<ol>");
        document.write("<li>Type something long using inline input (e.g. Kotoeri Hiragana IM)");
        document.write("<li>The text should be truncated to 8 characters when confirmed");
        document.write("<li>Type some more text");
        document.write("<li>The text should disappear when confirmed");
    }

</script>
<script src="../../../../fast/js/resources/js-test-post.js"></script>
</body>
</html>