test_input_value_set_preserve_undo.xhtml

Enable keyboard shortcuts

<?xml version="1.0"?>

<?xml-stylesheet href="chrome://global/skin" type="text/css"?>

<?xml-stylesheet href="chrome://mochikit/content/tests/SimpleTest/test.css" type="text/css"?>

<window title="Bug 1676785"

  xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"

  xmlns:html="http://www.w3.org/1999/xhtml"

  xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">

<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>

<script src="chrome://mochikit/content/tests/SimpleTest/EventUtils.js"></script>

<html:body>

  <xul:hbox>

    <html:input id="xul" />

  </xul:hbox>

  <html:div>

    <html:input id="non-xul" />

  </html:div>

</html:body>

<script class="testbody">

SimpleTest.waitForExplicitFinish();

function shouldPreserveHistory(input, preserve) {

  input.focus();

  input.value = "abc";

  input.value = "def";

  let ctrl = navigator.platform.indexOf("Mac") == 0 ? { metaKey: true } : { ctrlKey: true };

  synthesizeKey("z", ctrl);

  (preserve ? is : isnot)(input.value, "abc", `Expected ${input.id} to ${preserve ? "" : "not "}preserve undo history when setting .value`);

window.onload = function() {

  shouldPreserveHistory(document.getElementById("xul"), true);

  shouldPreserveHistory(document.getElementById("non-xul"), false);

  SimpleTest.finish();

</script>

</window>