chromium/src/third_party/blink/web_tests/editing/selection/5195166-2.html

<p>This tests for a bug where selection change notifications would post the wrong proposed selected range.</p>
<div id="div" contenteditable="true">There should be five characters selected in this sentence.</div>
<ul id="console"></ul>
<script>
function log(str) {
    console = document.getElementById("console");
    li = document.createElement("li");
    text = document.createTextNode(str);
    console.appendChild(li);
    li.appendChild(text);
}
if (window.testRunner) {
    testRunner.dumpEditingCallbacks();
    testRunner.dumpAsLayoutWithPixelResults();
    var text = document.getElementById("div").firstChild;
    var selection = window.getSelection();
    selection.setBaseAndExtent(text, 0, text, 0);
    testRunner.execCommand("MoveForwardAndModifySelection");
    testRunner.execCommand("MoveForwardAndModifySelection");
    testRunner.execCommand("MoveForwardAndModifySelection");
    testRunner.execCommand("MoveBackwardAndModifySelection");
} else {
    log("Failure: This test cannot be run manually.")
}

</script>