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diff --git a/dom/tests/mochitest/general/test_domWindowUtils_scrollXY.html b/dom/tests/mochitest/general/test_domWindowUtils_scrollXY.html
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+++ b/dom/tests/mochitest/general/test_domWindowUtils_scrollXY.html
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+<!DOCTYPE HTML>
+<html>
+<head>
+ <title>nsIDOMWindowUtils::elementFromPoint test</title>
+ <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+ <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css">
+ <style>
+ body {
+ /* Make room for scrolling */
+ }
+ </style>
+</head>
+
+<body id="body">
+ <script type="application/javascript;version=1.8">
+ /*
+ void getScrollXY(in boolean aFlushLayout, out long aScrollX, out long aScrollY);
+ */
+ function doTests() {
+ testScrollXY();
+ testHiddenIframe();
+
+ SimpleTest.finish();
+ }
+
+ function testScrollXY() {
+ let iframe = document.getElementById("iframe");
+ let cwindow = iframe.contentWindow;
+ let domWindowUtils = SpecialPowers.getDOMWindowUtils(cwindow);
+
+ function checkGetScrollXYState(flush, vals, testName) {
+ let scrollX = {}, scrollY = {};
+ domWindowUtils.getScrollXY(flush, scrollX, scrollY);
+ is(scrollX.value, vals[0], "getScrollXY x for test: " + testName);
+ is(scrollY.value, vals[1], "getScrollXY y for test: " + testName);
+ }
+
+ function checkWindowScrollState(vals, testName) {
+ is(cwindow.scrollX, vals[0], "scrollX for test: " + testName);
+ is(cwindow.scrollY, vals[1], "scrollY for test: " + testName);
+ }
+
+ // Check initial state (0, 0)
+ checkGetScrollXYState(false, [0, 0], "initial getScrollXY state");
+ checkGetScrollXYState(true, [0, 0], "initial getScrollXY state+flush");
+ checkWindowScrollState([0, 0], "initial window.scroll* state");
+
+ // scroll
+ cwindow.scrollTo(900, 1000);
+ checkGetScrollXYState(false, [900, 1000], "after scroll getScrollXY state");
+ checkGetScrollXYState(true, [900, 1000], "after scroll getScrollXY state+flush");
+ checkWindowScrollState([900, 1000], "after scroll window.scroll* state");
+
+ // ensure flush=false works
+ cwindow.document.body.style.width = 'auto';
+ cwindow.document.body.style.height = 'auto';
+ checkGetScrollXYState(false, [900, 1000], "didn't flush layout for getScrollXY");
+ checkGetScrollXYState(true, [0, 0], "flushed layout for getScrollXY");
+ }
+
+ function testHiddenIframe() {
+ let iframe = document.getElementById("hidden-iframe");
+ let cwindow = iframe.contentWindow;
+ let domWindowUtils = SpecialPowers.getDOMWindowUtils(cwindow);
+
+ // make sure getScrollXY doesn't throw
+ let scrollX = {}, scrollY = {};
+ domWindowUtils.getScrollXY(false, scrollX, scrollY);
+
+ is(scrollX.value, 0, "scrollX is zero for display:none iframe");
+ is(scrollY.value, 0, "scrollY is zero for display:none iframe");
+ }
+
+ SimpleTest.waitForExplicitFinish();
+ </script>
+
+ <!-- can't run this in the test document, since it potentially runs in a
+ scrolling="no" test harness iframe, and that causes a failure for some
+ reason -->
+ <iframe src="data:text/html,<body style='width: 100000px; height: 100000px;'><p>top</p></body>"
+ id="iframe"
+ onload="doTests();">
+ </iframe>
+
+ <iframe id="hidden-iframe" style="display: none;"></iframe>
+
+ <p id="display"></p>
+
+</body>
+</html>