LayoutTests/editing/selection/find-in-text-control.html

<p id="description" style="display: none;">
    Test for <i><a href="https://bugs.webkit.org/show_bug.cgi?id=7023">https://bugs.webkit.org/show_bug.cgi?id=7023</a> Searching in text areas</i>.
</p>
<div id="div">
    Lorem ip<textarea id="textarea">sum dolor si</textarea>t amet
    Lorem ip<input type="text" value="sum dolor si">t amet
    Lorem ip<input type="search" value="sum dolor si">t amet
    Lorem ip<input type="password" value="sum dolor si">t amet
</div>
<script>
    if (window.layoutTestController)
        layoutTestController.dumpAsText();

    var result = "";

    function elementIndex(node)
    {
        var index = 1;
        while (node = node.previousSibling) {
            if (node.nodeType == Node.ELEMENT_NODE)
                ++index;
        }
        return index;
    }

    function textNodeIndex(node)
    {
        var index = 1;
        while (node = node.previousSibling) {
            if (node.nodeType == Node.TEXT_NODE)
                ++index;
        }
        return index;
    }

    function findAll(target)
    {
        var ranges = [];

        var sel = getSelection();
        sel.empty();
        document.execCommand("FindString", false, target);
        if (!sel.rangeCount) {
            result += "Target " + target + " not matched\n";
            return;
        }
        var range = sel.getRangeAt(0);
        while (!ranges[0] || range.startContainer != ranges[0].startContainer || range.startOffset != ranges[0].startOffset) {
            ranges.push(range);
            document.execCommand("FindString", false, target);
            range = sel.getRangeAt(0);
        }
        sel.empty();

        var div = document.getElementById("div");
        result += "Target " + target + " matched at:\n";
        while (range = ranges.shift()) {
            result += "    ";
            result += range.startContainer.parentNode != div ? "text control" : "outer text node " + textNodeIndex(range.startContainer);
            result += ", at offset " + range.startOffset + "\n";
        }
    }

    findAll("m");
    findAll("s");
    findAll("si");
    findAll("rem");
    findAll("ipsum");
    findAll("sit");
    findAll("amet");

    document.body.appendChild(document.createElement("pre")).appendChild(document.createTextNode(result));
    document.getElementById("description").style.display = "";
</script>